Battery remote control method, system and mobile device based on wireless charging system

Abstract

The present invention relates to a battery remote control method, system, and mobile device based on a wireless charging system. The wireless charging system is used to replace a wired charging system to power the battery in a contactless manner. The battery remote control method includes the following steps: providing an additional communication module capable of communicating with the cloud at the transmitting end of the wireless charging system; utilizing the cloud to send a corresponding battery switch signal, the additional communication module receiving the battery switch signal and transmitting the battery switch signal to a battery management module via the transmitting end communication module and the receiving end communication module of the wireless charging system in sequence; and the battery management module controlling whether the battery is charged or discharged based on the battery switch signal. The present invention meets the requirements for battery remote control, can avoid the problems of unreliable contact and oxidation of contacts or pins in wired charging systems using an interface plug-in charging method, and can completely shut down the communication function, reducing the standby power consumption of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of battery charging, and in particular to a battery remote control method, system and mobile device based on a wireless charging system. Background Art

[0002] With the advancement of technology, more and more intelligent mobile devices are equipped with wireless charging capabilities, such as wireless charging for robots and drones. Batteries serve as the energy storage devices for these intelligent mobile devices, providing power and energy. Battery management systems (BMS) intelligently manage and monitor each battery cell, providing real-time feedback to users on collected battery information and enabling timely monitoring of battery status.

[0003] The battery management system can be used to control the switching of the battery input and output. In order to achieve the switching control of the battery, the existing battery management system usually includes positive and negative poles, a battery switching circuit and a charging protocol. In the existing battery management system, the battery switching circuit generally belongs to the weak current part and is a single branch. When the intelligent mobile device is working or the battery is low on power, the battery switch needs to be turned on through the battery switching circuit. Most of the existing battery switches are designed to be outside the device, and the switch needs to be manually controlled to realize the charging and discharging of the battery. When the device is far away, the remote switching control of the battery cannot be achieved. At the same time, some existing remote switching battery methods add 4G or other modules to the battery and use 4G communication to turn the battery on or off, but this method can only cut off the main circuit of the battery and the power supply. In order to maintain communication, the 4G module will not be shut down, resulting in higher power consumption when the device is in standby mode. Furthermore, wired battery charging typically uses contact-type connections such as contacts or pins. Repeated plugging and unplugging can lead to loose contacts or poor contact. Furthermore, after prolonged operation, the contacts or pins can oxidize, increasing the surface resistance of the contacts. This increases the contact resistance during plugging and unplugging, significantly impacting weak current signal transmission. If, in a complex operating environment, the device's battery output is shut down due to contact or signal transmission issues in the switching circuit, unpredictable consequences may result. Summary of the Invention

[0004] In order to solve the above problems, the present invention provides a battery remote control method, system and mobile device based on a wireless charging system, which has a certain degree of convenience and meets the requirements of battery remote control. It can avoid the problems of unreliable contact and oxidation of contacts or pins in the charging method using interface plug-in of the wired charging system, and can completely shut down the communication function, thereby reducing the standby power consumption of the device.

[0005] The present invention is implemented through the following scheme: a battery remote control method based on a wireless charging system, which uses the wireless charging system instead of the wired charging system to power the battery in a contactless manner, and the battery remote control method includes the following steps:

[0006] An additional communication module capable of communicating with the cloud is provided at the transmitting end of the wireless charging system;

[0007] The cloud sends a corresponding battery switch signal, the additional communication module receives the battery switch signal and transmits the battery switch signal to the battery management module through the transmitter communication module and the receiver communication module of the wireless charging system in sequence;

[0008] The battery management module controls whether the battery is charged or discharged according to the battery switch signal.

[0009] The present invention further improves the battery remote control method based on the wireless charging system in that:

[0010] The battery management module includes a high-voltage switch and a low-voltage battery switch circuit. The high-voltage switch is electrically connected between the receiving end of the wireless charging system and the battery. The low-voltage battery switch circuit is controlled and connected to the trigger end of the high-voltage switch.

[0011] The step of the battery management module controlling whether the battery is charged and discharged according to the battery switch signal includes: the battery management module controlling the low-current battery switch circuit to trigger the high-current switch to be closed or opened according to the battery switch signal; when the high-current switch is closed, the receiving end of the wireless charging system and the battery are in a conductive state, and the battery is charged and discharged; when the high-current switch is opened, the receiving end of the wireless charging system and the battery are in a disconnected state, and the battery stops charging and discharging.

[0012] The present invention also provides a battery remote control system based on a wireless charging system, comprising:

[0013] A wireless charging system, wherein the transmitting end of the wireless charging system has a transmitting end communication module, and the receiving end of the wireless charging system has a receiving end communication module. The transmitting end of the wireless charging system is also provided with an additional communication module capable of communicating with the cloud, the additional communication module and the transmitting end communication module can establish a communication connection, and the transmitting end communication module and the receiving end communication module can establish a communication connection;

[0014] A battery management module is used to control whether the battery is charged or discharged according to the battery switch signal. The battery management module is electrically connected between the receiving end of the wireless charging system and the battery, and the battery management module can establish a communication connection with the receiving end communication module.

[0015] A further improvement of the battery remote control system based on the wireless charging system of the present invention is that the battery management module includes a high-current switch and a low-current battery switch circuit for triggering the high-current switch to close and open. The high-current switch is electrically connected between the receiving end of the wireless charging system and the battery, and the low-current battery switch circuit is controlled to be connected to the trigger end of the high-current switch.

[0016] A further improvement of the battery remote control system based on the wireless charging system of the present invention is that the additional communication module is a wireless communication module of 2G or above.

[0017] A further improvement of the battery remote control system based on the wireless charging system of the present invention is that the transmitting end communication module is a Bluetooth module, an NFC module, or a RFID module.

[0018] A further improvement of the battery remote control system based on the wireless charging system of the present invention is that the receiving end communication module is a Bluetooth module, an NFC module, or a RFID module.

[0019] A further improvement of the battery remote control system based on the wireless charging system of the present invention is that the wireless charging system includes:

[0020] A transmitter circuit provided at the transmitter is connected to a power supply, and the additional communication module and the transmitter communication module are both provided at the transmitter circuit;

[0021] A transmitting end coil provided at the transmitting end and connected to the transmitting end circuit;

[0022] A receiving coil provided at the receiving end is coupled with the magnetic field of the transmitting coil when it is close to the transmitting coil;

[0023] The receiving end circuit provided at the receiving end is connected to the receiving end coil, and the receiving end communication module is provided at the receiving end circuit.

[0024] The present invention also provides a mobile device that uses the battery remote control system based on the wireless charging system as described above to perform battery remote control, wherein the battery, battery management module and receiving end of the wireless charging system are all installed on the mobile device.

[0025] A further improvement of the mobile device of the present invention is that the mobile device is a robot, a drone or an AGV.

[0026] The present invention includes but is not limited to the following beneficial effects: the present invention utilizes a wireless charging system to replace a traditional wired charging system that requires an interface to be plugged into a battery circuit to power the battery in a contactless manner, which can effectively avoid problems such as poor contact, increased resistance, and inaccurate transmission of weak current circuit signals caused by oxidation of contacts or pins in the interface plug-in structure. At the same time, by adding an additional communication module to the transmitting end of the wireless charging system and combining it with its own communication module to realize the transmission of cloud signals, the remote control requirements of the battery are met. Moreover, when the wireless charging system is not working, the communication function of the present invention will be completely turned off, which reduces power consumption and saves costs compared to the traditional remote control method that requires real-time communication status with the cloud by setting a communication module at the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The block diagram of the battery remote control system based on the wireless charging system of the present invention is shown.

[0028] Figure 2 A schematic diagram of opening signal transmission of the present invention is shown.

[0029] Figure 3 A schematic diagram of shutting down signal transmission according to the present invention is shown.

[0030] Figure 4 A schematic diagram of signal transmission when the present invention is applied to a drone is shown. DETAILED DESCRIPTION

[0031] Since the battery switch circuit of the existing battery management system is a single-branch weak-current circuit, and is connected to the loop using a contact structure such as a contact piece or a pin, and the contact piece or pin of the contact structure is easily oxidized, which has a great impact on the transmission of weak-current signals. When used in a complex environment, the contact connection has the risk of contact sparking. Moreover, the existing remote battery control method is to set a communication module at each battery, which is relatively expensive, and the communication module needs to remain in working condition in order to receive instructions from the cloud in a timely manner, resulting in a large standby power consumption of the device. In order to solve the above problems, the present invention provides a battery remote control method, system and mobile device based on a wireless charging system. The battery remote control system has a certain degree of convenience and meets the requirements of battery remote control. It can avoid the problem of unreliable contact and oxidation of contacts or pins in the charging method of wired charging system using interface plug-in, and can achieve complete shutdown of the communication function, reducing the standby power consumption of the device.

[0032] The following further describes the battery remote control method, system and mobile device based on the wireless charging system with specific embodiments and accompanying drawings.

[0033] See Figure 1 , Figure 1The block diagram of the present invention shows a battery remote control system based on a wireless charging system. A battery remote control system based on a wireless charging system includes: a wireless charging system, wherein the transmitting end of the wireless charging system has a transmitting end communication module, and the receiving end of the wireless charging system has a receiving end communication module. The transmitting end of the wireless charging system is also provided with an additional communication module capable of communicating with the cloud, the additional communication module being able to establish a communication connection with the transmitting end communication module, and the transmitting end communication module being able to establish a communication connection with the receiving end communication module; a battery management module for controlling whether the battery is charged or discharged based on the battery switch signal, the battery management module being electrically connected between the receiving end of the wireless charging system and the battery, and the battery management module being able to establish a communication connection with the receiving end communication module.

[0034] Specifically, the wireless charging system includes: a transmitter circuit provided at the transmitter end, connected to a power source; the additional communication module and the transmitter communication module are both provided in the transmitter circuit; a transmitter coil provided at the transmitter end, connected to the transmitter circuit; a receiver coil provided at the receiver end, coupled to the magnetic field of the transmitter coil when in proximity to the transmitter coil; a receiver circuit provided at the receiver end, connected to the receiver coil; and the receiver communication module provided in the receiver circuit. The battery management module includes a high-voltage switch and a low-voltage battery switch circuit for triggering the high-voltage switch to close and open. The high-voltage switch is electrically connected between the receiver end of the wireless charging system and the battery, and the low-voltage battery switch circuit controls the trigger end connected to the high-voltage switch. Within the system, electrical energy is transmitted wirelessly, achieving wireless energy transmission through near-field magnetic field coupling between the wireless charging transmitter coil and the receiver coil. The receiver circuit then stabilizes and filters the received electrical energy and transmits it to the battery, thereby realizing the functions of battery-related equipment.

[0035] This embodiment utilizes a wireless charging system to replace traditional wired charging systems that require an interface plugged into the battery circuit, providing contactless battery power. This effectively avoids issues such as poor contact, increased resistance, and inaccurate transmission of weak current signals due to oxidation of contacts or pins in the interface plug-in structure. Furthermore, by adding an additional communication module to the wireless charging system's transmitter and integrating it with its own existing communication module to enable cloud signal transmission, the battery's remote control requirements are met. Furthermore, when the wireless charging system is not operating, the communication function is completely disabled. This reduces power consumption and saves costs compared to traditional remote control methods that require a communication module at the battery to maintain real-time communication with the cloud.

[0036] As a preferred embodiment, the additional communication module is a communication module of 2G to 4G or higher frequency band.

[0037] As a preferred embodiment, the transmitting end communication module and / or the receiving end communication module is a Bluetooth module or an NFC module or a FRID module or other modules with information transmission function.

[0038] The above-mentioned battery remote control system based on the wireless charging system can be applied to any intelligent mobile device that needs battery charging. The battery of the battery remote control system, the battery management module and the receiving end structure of the wireless charging system (including the receiving end coil and the receiving end circuit, etc.) are all installed on the mobile device. The battery on the mobile device can be wirelessly charged by simply bringing the receiving end close to the transmitting end structure (including the transmitting end coil, the transmitting end circuit, etc.) connected to the power supply (without the need for interface plugging), and at the same time, remote control of battery charging and discharging can be achieved. The mobile device can be a robot, a drone, an AGV or other intelligent mobile device. As a preferred embodiment, in conjunction with Figure 4 , Figure 4 A schematic diagram of signal transmission for the present invention when applied to a drone is shown. The mobile device is a drone. The battery, battery management module, and the receiving end structure of the wireless charging system are all installed on the drone. The transmitting end structure is located within a charging pile or station for wireless charging. During wireless charging, the drone is moved so that the receiving end structure installed on it is close to the transmitting end structure connected to the power source. The wireless power supply system begins operation, and the battery remote control system establishes a communication connection. The communication circuit within the wireless power supply system transmits both internal signals of the wireless power supply system and battery switch signals sent from the external cloud.

[0039] A battery remote control method based on a wireless charging system utilizes the wireless charging system to replace the wired charging system to power the battery in a contactless manner. The battery remote control method comprises the following steps:

[0040] Step 1: Provide a wireless charging system, and set an additional communication module at the transmitting end of the wireless charging system for communicating with the cloud.

[0041] Step 2: Use the cloud to send a battery switch signal. When the wireless charging system is turned on, the additional communication module receives the battery switch signal and transmits the battery switch signal to the battery management module through the transmitter communication module and the receiver communication module of the wireless charging system.

[0042] Step 3: The battery management module controls whether the battery is charged or discharged according to the battery switch signal. Specifically, the battery management module includes a high-current switch and a low-current battery switch circuit. The high-current switch is electrically connected between the receiving end of the wireless charging system and the battery, and the low-current battery switch circuit controls the trigger end connected to the high-current switch. When the battery management module controls whether the battery is charged or discharged according to the battery switch signal: the battery management module controls the low-current battery switch circuit to trigger the high-current switch to close or open according to the battery switch signal; when the high-current switch is closed, the receiving end of the wireless charging system and the battery are in a conductive state, and the battery is charged and discharged; when the high-current switch is open, the receiving end of the wireless charging system and the battery are disconnected, and the battery stops charging and discharging.

[0043] Specifically: See Figure 2 , Figure 2 The schematic diagram of the present invention shows the transmission of an opening signal. When the battery is judged to be low or the device requires battery charging or discharging, the cloud sends an opening signal to close the high-voltage switch to the additional communication module on the transmitting end. After receiving the opening signal instruction, the additional communication module communicates through the transmitting end communication module and the receiving end communication module of the wireless charging system itself, and transmits the opening signal to the receiving end communication module. The receiving end communication module then transmits the opening signal to the battery's BMS (battery management module). The BMS controls the low-voltage battery switch circuit to close the high-voltage switch, thereby realizing battery charging and discharging to meet the device's operating requirements.

[0044] See Figure 3 , Figure 3 The schematic diagram of the shutdown signal transmission of the present invention is shown. When the device does not need to work or the battery is fully charged, there is no need to charge or discharge the battery, and the battery switch can be remotely controlled to be turned off through the cloud. The cloud sends a shutdown signal to disconnect the high-voltage switch to the additional communication module at the transmitting end. After receiving the shutdown signal instruction, the additional communication module communicates through the transmitting end communication module and the receiving end communication module of the wireless charging system itself, and transmits the shutdown signal to the receiving end communication module. The receiving end communication module then transmits the shutdown signal to the BMS (i.e., the battery management module), and the BMS controls the weak-current battery switch circuit to trigger the high-voltage switch to disconnect. At this time, the wireless power supply system does not work, and the corresponding additional communication module, the transmitting end communication module, and the receiving end communication module are also disconnected, which can achieve complete shutdown of the communication function in the entire system and reduce the standby power consumption of the equipment.

[0045] The present invention has been described in detail above with reference to the embodiments of the accompanying drawings. A person skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details in the embodiments should not be construed as limiting the present invention. The scope of protection of the present invention shall be determined by the scope defined in the appended claims.

Claims

1. A battery remote control method based on a wireless charging system, characterized in that: A wireless charging system is used to replace a wired charging system to power a battery in a contactless manner. The battery remote control method includes the following steps: An additional communication module capable of communicating with the cloud is provided at the transmitting end of the wireless charging system; The cloud sends a corresponding battery switch signal, the additional communication module receives the battery switch signal and transmits the battery switch signal to the battery management module in sequence through the transmitter communication module and the receiver communication module of the wireless charging system. The battery management module includes a high-current switch and a low-current battery switch circuit. The high-current switch is electrically connected between the receiver of the wireless charging system and the battery, and the low-current battery switch circuit is controlled and connected to the trigger end of the high-current switch. The battery management module controls whether the battery is charged or discharged according to the battery switch signal, and the steps include: the battery management module controls the weak-current battery switch circuit to trigger the strong-current switch to close or open according to the battery switch signal; When the high-power switch is closed, the receiving end of the wireless charging system and the battery are in a conductive state, and the battery is charged and discharged; when the high-power switch is open, the receiving end of the wireless charging system and the battery are disconnected, and the battery stops charging and discharging.

2. A battery remote control system based on a wireless charging system, characterized in that: include: A wireless charging system, wherein the transmitting end of the wireless charging system has a transmitting end communication module, and the receiving end of the wireless charging system has a receiving end communication module. The transmitting end of the wireless charging system is also provided with an additional communication module capable of communicating with the cloud, the additional communication module and the transmitting end communication module can establish a communication connection, and the transmitting end communication module and the receiving end communication module can establish a communication connection; A battery management module is used to control whether the battery is charged or discharged according to the battery switch signal. The battery management module is electrically connected between the receiving end of the wireless charging system and the battery, and the battery management module can establish a communication connection with the receiving end communication module. The battery management module includes a high-current switch and a low-current battery switch circuit for triggering the high-current switch to close and open. The high-current switch is electrically connected between the receiving end of the wireless charging system and the battery, and the low-current battery switch circuit is controlled and connected to the trigger end of the high-current switch.

3. The battery remote control system based on the wireless charging system according to claim 2, characterized in that: The additional communication module is a 2G or higher wireless communication module.

4. The battery remote control system based on the wireless charging system according to claim 2, characterized in that: The transmitting end communication module is a Bluetooth module, an NFC module or a RFID module.

5. The battery remote control system based on the wireless charging system according to claim 2, characterized in that: The receiving end communication module is a Bluetooth module, an NFC module or a RFID module.

6. The battery remote control system based on the wireless charging system according to claim 2, characterized in that: The wireless charging system includes: A transmitter circuit provided at the transmitter is connected to a power supply, and the additional communication module and the transmitter communication module are both provided at the transmitter circuit; A transmitting end coil provided at the transmitting end and connected to the transmitting end circuit; A receiving coil provided at the receiving end is coupled with the magnetic field of the transmitting coil when it is close to the transmitting coil; The receiving end circuit provided at the receiving end is connected to the receiving end coil, and the receiving end communication module is provided at the receiving end circuit.

7. An intelligent mobile device, characterized in that: The battery remote control system based on the wireless charging system as claimed in any one of claims 2 to 6 is used to remotely control the battery, wherein the battery, the battery management module and the receiving end of the wireless charging system are all installed on the intelligent mobile device.

8. The intelligent mobile device according to claim 7, wherein: The intelligent mobile device is a robot, a drone or an AGV.

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