CN115882537A - Power detection circuit, terminal, power determination method and readable storage medium - Google Patents

Abstract

The present application relates to a power detection circuit, a terminal, a power determination method and a readable storage medium. The power detection circuit is applied to a terminal, and the terminal includes a first processor and a second processor, the first processor is used to run the first system, the second processor is used to run the second system, and the operating power consumption of the first processor is greater than that of the second processor. The operating power consumption of the processor; the power detection circuit includes: a first fuel gauge, used to determine the first battery power of the terminal according to the battery output current of the terminal and the first battery temperature of the terminal when the second system is in a dormant state; The second fuel gauge is used to determine the second battery power of the terminal according to the battery output current of the terminal and the second battery temperature of the terminal when the first system is in a dormant state. The power detection circuit can still accurately display the power of the terminal when the first system of the terminal enters a dormant state.

Description

Power detection circuit, terminal, power determination method and readable storage medium

technical field

The present application relates to the technical field of mobile terminals, in particular to a power detection circuit, a terminal, a power determination method and a readable storage medium.

Background technique

With the development of mobile communication technology, many terminals now adopt a dual-system architecture with large and small cores in order to improve their battery life. The large-core system usually has rich functions, and can use the fuel gauge normally to display the percentage of power; but the small-core system usually The supported functions are relatively simple. In the small-core mode, it can only estimate the battery level and display the battery level. Therefore, when the terminal's large-core system will enter a sleep state, it is difficult for the small-core system to accurately display the terminal's battery level.

Contents of the invention

Embodiments of the present application provide a power detection circuit, a terminal, a power determination method, and a readable storage medium, which can accurately display the power of the terminal when the large-core system of the terminal enters a dormant state.

In a first aspect, a power detection circuit is provided, the power detection circuit is applied to a terminal, the terminal includes a first processor and a second processor, the first processor is used to run the first system, and the first Two processors are used to run the second system, and the operating power consumption of the first processor is greater than the operating power consumption of the second processor; the power detection circuit includes:

a first fuel gauge, configured to determine the first battery power of the terminal according to the battery output current of the terminal and the first battery temperature of the terminal when the second system is in a dormant state;

The second fuel gauge is configured to determine the second battery power of the terminal according to the battery output current of the terminal and the second battery temperature of the terminal when the first system is in a dormant state.

In a second aspect, a power detection circuit is provided, the power detection circuit is applied to a terminal, the terminal includes a first processor and a second processor, the first processor is used to run the first system, and the first Two processors are used to run the second system, and the operating power consumption of the first processor is greater than the operating power consumption of the second processor; the power detection circuit includes: a control switch and a power gauge;

The control switch is configured to turn on the path between the fuel gauge and the first processor when the second system is in a dormant state, so that the fuel gauge outputs the current according to the battery output current of the terminal and a first battery temperature of the terminal determines a first battery level of the terminal;

The control switch is further configured to turn on the path between the fuel gauge and the second processor when the first system is in a dormant state, so that the fuel gauge outputs current according to the battery of the terminal and the second battery temperature of the terminal to determine the second battery level of the terminal.

In a third aspect, a terminal is provided, and the terminal includes:

a first processor, configured to run a first system;

A second processor configured to run a second system; the operating power consumption of the first processor is greater than the operating power consumption of the second processor; and

The power detection circuit according to any one of the first aspect and the second aspect.

In a fourth aspect, there is provided a method for determining power, which is applied to a terminal, and the terminal includes: a first processor and a second processor, the first processor is used to run the first system, and the second processor is used to Running the second system, the operating power consumption of the first processor is greater than the operating power consumption of the second processor, the method comprising:

When the second system is in a dormant state, the first system determines the first battery power of the terminal through a first fuel gauge;

The second system determines the second battery power of the terminal through a second power gauge when the first system is in a dormant state.

In a fifth aspect, there is provided a method for determining power, which is applied to a terminal, and the terminal includes: a first processor and a second processor, the first processor is used to run the first system, and the second processor is used to Running the second system, the operating power consumption of the first processor is greater than the operating power consumption of the second processor, the method comprising:

The first system turns on the path between the fuel gauge and the first processor when the second system is in the dormant state, and determines the first battery power of the terminal through the fuel gauge;

When the first system is in a dormant state, the second system turns on the path between the fuel gauge and the second processor, and determines the second battery power of the terminal through the fuel gauge.

In a sixth aspect, a computer-readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the methods described in the fourth aspect and the fifth aspect are implemented.

The above electric power detection circuit, terminal, power determination method and readable storage medium, the electric power detection circuit is applied to the terminal, the terminal includes a first processor and a second processor, the first processor is used to run the first system, and the second processor is used to Running the second system, the operating power consumption of the first processor is greater than the operating power consumption of the second processor; the first fuel gauge of the power detection circuit can output current according to the battery output current of the terminal and the terminal when the second system is in a sleep state. The first battery temperature of the terminal determines the first battery power of the terminal, and the second fuel gauge of the power detection circuit can detect the second battery of the terminal according to the battery output current of the terminal and the second battery temperature of the terminal when the first system is in a sleep state Power, that is to say, using the power detection circuit, when the first system of the terminal enters the dormant state, the second power gauge can still detect the second battery power of the terminal, so that the terminal can still be charged when the first system enters the dormant state Accurately display the terminal power.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present application. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 is a block diagram of an existing terminal internal structure in an embodiment;

FIG. 2 is an internal structural diagram of a terminal applied to a power detection circuit provided by an embodiment of the present application;

Fig. 2a is a schematic diagram of a simplified block diagram of a battery electric fuel gauge provided by an embodiment of the present application;

FIG. 3 is an internal structural diagram of a terminal applied to a power detection circuit provided by an embodiment of the present application;

FIG. 4 is an internal structural diagram of a terminal applied to a power detection circuit provided by an embodiment of the present application;

FIG. 5 is an internal structural diagram of a terminal applied to a power detection circuit provided by an embodiment of the present application;

FIG. 6 is an internal structural diagram of a terminal applied to a power detection circuit provided by another embodiment of the present application;

FIG. 7 is an internal structural diagram of a terminal applied to a power detection circuit provided by another embodiment of the present application;

Fig. 8 is a schematic flow chart of a method for determining electric quantity in an embodiment;

Fig. 9 is a schematic flowchart of a method for determining an electric quantity in an embodiment.

Explanation of reference signs:

10: the first fuel gauge; 20: the second fuel gauge; 30: the second thermistor;

40: detection resistor; 50: control switch; 60: fuel gauge;

70: Sense resistor.

Detailed ways

In order to make the purpose, technical solution and advantages of the present application clearer, the present application 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 application, and are not intended to limit the present application.

It can be understood that the terms "first", "second" and the like used in this application may be used to describe various elements herein, but these elements are not limited by these terms. These terms are only used to distinguish one element from another element. For example, a first client could be termed a second client, and, similarly, a second client could be termed a first client, without departing from the scope of the present application. Both the first client and the second client are clients, but they are not the same client.

At present, in order to improve their battery life, many terminals start to adopt the architecture mode of large and small core dual systems. For example, the large core mode generally runs on the Android system, and the processor under the large core mode is generally a powerful processor running on the Android system. For example, CPU, etc., the small-core mode generally runs on FreeRTOS, MCU and other systems, and the processor in the small-core mode is generally a low-power processor running on FreeRTOS, MCU and other systems. Usually, as shown in Figure 1, a power management chip PMIC is mounted on the processor of the large-core system. The PMIC has a fuel gauge FG. The output current is detected, and then the detected current value is integrated in time to obtain the battery power of the terminal. In the small-core mode, both the large-core processor and PMIC are in a dormant state, and the battery output current of the terminal is converted by the DC-DC conversion circuit to supply power for the small-core processor. At this time, the FG of the large-core system cannot It is difficult to accurately display the power of the terminal because the power consumed by the small-core system is calculated. In addition, when the terminal switches back to the large-core mode again, the FG displays the power of the terminal before the PMIC goes to sleep, which is quite different from the actual power of the terminal.

Based on this, in view of the above situation, an embodiment of the present application proposes a power detection circuit, so that when the large-core system of the terminal enters a dormant state, the small-core system can still accurately display the power of the terminal.

In the first aspect, as shown in FIG. 2 , in an embodiment, the present application provides a power detection circuit 01, which is applied to a terminal, the terminal includes a first processor and a second processor, and the first processor The device is used to run the first system, the second processor is used to run the second system, the operating power consumption of the first processor is greater than the operating power consumption of the second processor, and the power detection circuit 01 includes: a first power gauge 10 for When the second system is in the dormant state, determine the first battery power of the terminal according to the battery output current of the terminal and the first battery temperature of the terminal; The battery output current and the terminal's second battery temperature determine the terminal's second battery capacity.

进而对电池的输出电流持续进行积分，得到电池的电量为：

Wherein, both the first fuel gauge 10 and the second fuel gauge 20 can continuously integrate the total output current of the terminal battery, and use the integrated net charge as the remaining capacity of the battery to obtain the battery power. Exemplarily, take the simplified battery fuel gauge block diagram in Figure 2a as an example, in Figure 2a Rsns is the mΩ level current detection resistor, R1 is the load resistor, the battery passes through the switch, and the current I when Rsns discharges R1 is generated at both ends of Rsns The voltage drop is V _s (t)=I(t)*Rsns, so the output current of the battery is

Then, the output current of the battery is continuously integrated, and the power of the battery is obtained as:

In this embodiment, the terminal applied by the power detection circuit 01 is a terminal including a dual-system architecture with large and small cores, wherein the first system of the terminal can be a powerful system such as Android; the second system of the terminal can be FreeRTOS, MCU, single-chip microcomputer and other low-power systems; the operating power consumption of the first processor of the terminal is greater than the operating power consumption of the second processor, that is, in the dual-system architecture, the processing capability of the first system of the terminal is higher than that of the second system, For example, the processing capability of the first system of the terminal is higher than that of the second system, which may mean that the computing capability of the first system is stronger than that of the second system, or that the processing speed of the first system is higher than that of the second system. processing speed etc. Optionally, the foregoing terminal may be a mobile phone, a watch, a bracelet, a tablet computer, etc., which are not limited in this embodiment of the present application.

It can be understood that, in some scenarios, when the processing capability of the terminal is relatively strong, the first system of the terminal is in a working state, and the second system of the terminal is in a dormant state. Optionally, when the second system of the terminal is in the dormant state, the second system may transfer the control right of the terminal to the first system after receiving the control right switching instruction sent by the first system, and the second system enters the dormant state. Optionally, in this embodiment, the first electricity meter 10 may be mounted on the first processor of the terminal, or may be integrated on a processing chip of the first processor, which is not limited in this embodiment. Optionally, in this embodiment, the first fuel gauge 10 is connected to the first processor and the battery of the terminal respectively, and when the second system of the terminal enters a dormant state, the first fuel gauge 10 will obtain the output current and the first battery temperature of the terminal, and determine the first battery power of the terminal according to the battery output current of the terminal and the first battery temperature of the terminal. Optionally, a detection resistor can be set in the power detection circuit 01, and the first fuel gauge 10 can obtain the output current of the battery according to the resistance value of the detection resistor in the power detection circuit 01 and the voltage difference between the two ends of the detection resistor, or, A current detector may be installed at the output end of the battery of the terminal, and the first fuel gauge 10 may obtain the output current of the battery of the terminal through the current detector. Optionally, a temperature sensor may be set in the battery of the terminal, and the first fuel gauge 10 may acquire the first battery temperature of the terminal from the temperature sensor, or a thermistor may be set on the battery of the terminal, and the temperature sensor may resistor to get the terminal's first battery temperature.

Further, the first fuel gauge 10 can determine the internal resistance consumption of the terminal battery according to the first battery temperature of the terminal, so as to obtain the current value corresponding to the internal resistance consumption of the terminal battery according to the internal resistance consumption of the terminal battery, and the current value Integrate to obtain the first power consumption of the battery of the terminal, and integrate the output current of the battery of the terminal to obtain the second power consumed by the battery of the terminal, and determine the sum of the first power and the second power as the terminal battery The total power consumption, so as to determine the first battery power of the terminal; or, the first fuel gauge 10 can determine the internal resistance consumption of the terminal battery according to the first battery temperature of the terminal, so as to obtain the terminal battery according to the internal resistance consumption of the terminal battery. The current value corresponding to the internal resistance consumption of the terminal is added and then integrated to obtain the total power consumption of the terminal battery, thereby determining the first battery power of the terminal. Optionally, the first fuel gauge 10 may determine the difference between the corresponding battery power when the second system of the terminal enters the dormant state and the obtained total power consumption of the terminal battery as the first battery power of the terminal, for example, the first battery power of the terminal. When the second system enters the dormant state, the corresponding battery power is 80%, and the obtained total power consumption of the terminal battery is 20%, so the first fuel gauge 10 determines that the first battery power of the terminal is 60%.

In other scenarios, for example, when the terminal is in the long battery life mode, the first system of the terminal will be in a dormant state, and the first fuel gauge 10 will also shut down and stop working. At this time, the second fuel gauge 20 of the power detection circuit 01 Determine the second battery power of the terminal according to the battery output current of the terminal and the second battery temperature of the terminal. Optionally, in this embodiment, the second fuel gauge 20 may be connected to the second processor of the terminal and the battery of the terminal, and the second fuel gauge 20 may detect The voltage value at both ends of the resistor can be used to obtain the output current of the battery, or the second fuel gauge 20 can also obtain the battery output current of the terminal through the above-mentioned current detector installed at the output end of the battery of the terminal. Optionally, the second fuel gauge 20 can obtain the temperature of the second battery of the terminal from the temperature sensor set in the battery of the terminal, or can also obtain the temperature of the second battery of the terminal through a thermistor set on the battery of the terminal. temperature. Further, the second fuel gauge 20 can determine the internal resistance consumption of the terminal battery according to the second battery temperature of the terminal, so as to obtain the current value corresponding to the internal resistance consumption of the terminal battery according to the internal resistance consumption of the terminal battery, and the current value Integrate to obtain the third power consumed by the battery of the terminal, and integrate the output current of the battery of the terminal to obtain the fourth power consumed by the battery of the terminal, and determine the sum of the third power and the fourth power as the terminal's first The total power consumption of the battery when the system is in a dormant state, so as to determine the second battery power of the terminal; or, the second fuel gauge 10 can determine the internal resistance consumption of the terminal battery according to the second battery temperature of the terminal, so as to determine the internal resistance consumption of the terminal battery according to the second battery temperature of the terminal Internal resistance consumption, to obtain the current value corresponding to the internal resistance consumption of the terminal battery, add the output current of the terminal battery and the current value corresponding to the internal resistance consumption of the battery, and then integrate to obtain the total power consumption of the terminal battery, thereby determining Secondary battery level of the terminal. Optionally, the second fuel gauge 20 may determine the difference between the corresponding battery power when the first system of the terminal enters the dormant state and the obtained total power consumption of the terminal battery as the second battery power of the terminal, for example, the terminal's first When a system enters the dormant state, the corresponding battery power is 60%, and the obtained total power consumption of the terminal battery is 15%, then the second fuel gauge determines that the second battery power of the terminal is 45%. It can be understood that when the first system of the terminal is in the dormant state, the second system of the terminal is in the working state. The output current is converted to a small current.

In this embodiment, when the second system is in a dormant state, the first fuel gauge of the power detection circuit can determine the first battery power of the terminal according to the battery output current of the terminal and the first battery temperature of the terminal, and the second battery power of the power detection circuit When the first system is in the dormant state, the fuel gauge can detect the second battery power of the terminal according to the battery output current of the terminal and the second battery temperature of the terminal. state, the second fuel gauge can still detect the second battery power of the terminal, so that the terminal can still accurately display the power of the terminal when the first system enters the dormant state.

Usually, when the second system is in the dormant state, the accuracy of the first battery level of the terminal determined by the first fuel gauge 10 is only about ±10%, and the accuracy is relatively poor. Therefore, when the second system is in the dormant state, the above-mentioned The second fuel gauge 20 assists the first fuel gauge 10 in determining the first battery power of the terminal. In one embodiment, the above-mentioned second fuel gauge 20 is also used to determine the third battery power according to the battery output current of the terminal and the first battery temperature of the terminal when the second system is in a dormant state; the third battery power is used for Calibrate first battery level.

In this embodiment, when the second system is in a dormant state, the second fuel gauge 20 can obtain the output current of the terminal battery according to the resistance value of the detection resistor in the power detection circuit 01 and the voltage value at both ends of the detection resistor. Alternatively, the second fuel gauge 20 can also obtain the battery output current of the terminal through the above-mentioned current detector installed at the output end of the battery of the terminal. Optionally, the second fuel gauge 20 can obtain the temperature of the first battery of the terminal from the temperature sensor set in the battery of the terminal, or can also obtain the temperature of the first battery of the terminal through a thermistor set on the battery of the terminal. temperature. Further, the second fuel gauge 20 can determine the internal resistance consumption of the terminal battery according to the first battery temperature of the terminal, so as to obtain the current value corresponding to the internal resistance consumption of the terminal battery according to the internal resistance consumption of the terminal battery, and the current value Integrate to obtain the fifth power consumed by the battery of the terminal, and integrate the output current of the battery of the terminal to obtain the sixth power consumed by the battery of the terminal, and determine the sum of the fifth power and the sixth power as the terminal in the second system The total power consumption of the battery when it is in the dormant state, so as to determine the third battery power of the terminal; or, the second fuel gauge 10 can determine the internal resistance consumption of the terminal battery according to the first battery temperature of the terminal, so as to determine the internal resistance consumption of the terminal battery according to the internal resistance of the terminal battery Consumption, to obtain the current value corresponding to the internal resistance consumption of the battery of the terminal, add the output current of the terminal battery and the current value corresponding to the internal resistance consumption of the battery, and then integrate to obtain the total power consumption of the terminal battery, thereby determining the terminal’s the third battery level, and use the determined third battery level to calibrate the first battery level obtained by the first fuel gauge 10 .

Optionally, in this embodiment, the above-mentioned first fuel gauge can be calibrated to determine the first battery power of the terminal in the following two ways:

The first type: the second fuel gauge 20 is connected to the first fuel gauge 10, the second fuel gauge 20 transmits the determined third battery power to the first fuel gauge 10, and the first fuel gauge 10 calculates the first battery power according to the third battery power. The battery power is calibrated.

In this embodiment, the second fuel gauge 20 is connected to the first fuel gauge 10, and after the second fuel gauge 20 determines the third battery power of the terminal battery, the second fuel gauge 20 transmits the determined third battery power To the first fuel gauge 10, the first fuel gauge 10 calibrates the above-mentioned first battery power according to the above-mentioned third battery power, and optionally, the first fuel gauge 10 can directly determine the third power as the first battery power of the terminal , the average value of the third battery level and the first battery level may also be determined as the first battery level of the terminal. For example, when the second system of the terminal is in a dormant state, the first fuel gauge determines that the first battery power of the terminal is 70%, and the second fuel gauge determines that the third battery power of the terminal is 69.8%, then the first fuel gauge 10 can The 69.8% determined by the second fuel gauge is determined as the first battery power of the terminal; for another example, when the second system of the terminal is in a dormant state, the first fuel gauge 10 determines that the first battery power of the terminal is 65%, and the second The fuel gauge 20 determines that the third battery power of the terminal is 63%, and the first fuel gauge 10 may determine the average value of the two, 64%, as the first battery power of the terminal.

The second type: the above-mentioned terminal also includes a battery management chip, which is respectively connected to the first fuel gauge 10, the second fuel gauge 20, and the first processor. to calibrate.

In this embodiment, the above-mentioned terminal further includes a battery management chip. Optionally, the above-mentioned first fuel gauge 10 can be integrated with the battery management chip, or the battery management chip can be connected with the first fuel gauge 10 and the second battery management chip respectively. The meter 20 is connected to the first processor. In this embodiment, when the second system of the terminal is in a dormant state, the second electricity meter 20 determines the third battery power according to the battery output current of the terminal and the first battery temperature of the terminal. , the second fuel gauge 20 transmits the determined third battery power to the battery management chip, and the battery management chip calibrates the first battery power according to the third battery power transmitted by the second fuel gauge 20. Similarly, the battery management chip The third power level may be directly determined as the first battery power of the terminal, or an average value of the third battery power and the first battery power may be determined as the first battery power of the terminal. For example, when the second system of the terminal is in a dormant state, the first fuel gauge determines that the first battery power of the terminal is 70%, and the second fuel gauge determines that the third battery power of the terminal is 69.8%, then the battery management chip may set the first battery power of the terminal to 69.8%. The 69.8% determined by the second fuel gauge is determined as the first battery power of the terminal; for another example, when the second system of the terminal is in a dormant state, the first fuel gauge 10 determines that the first battery power of the terminal is 65%, and the second fuel gauge 20. If the third battery level of the terminal is determined to be 63%, the battery management chip may determine the average value of the two, 64%, as the first battery level of the terminal.

In this embodiment, the second fuel gauge of the power detection circuit can determine the third battery power according to the battery output current of the terminal and the first battery temperature of the terminal when the second system of the terminal is in a dormant state, and then according to the third battery power Calibrate the first battery level, because the measurement accuracy of the second fuel gauge is higher than the measurement accuracy of the first fuel gauge, so the third battery level measured by the second fuel gauge is compared to the second battery level measured by the first fuel gauge Calibration can ensure the accuracy of the determined first battery level.

Usually, a thermistor is set on the battery of the terminal, and the thermistor can measure the battery temperature of the terminal. In one embodiment, the above-mentioned first fuel gauge 10 is also used to obtain The first battery temperature on the first thermistor in the battery terminal.

Among them, the thermistor NTC refers to the thermistor phenomenon and material whose resistance decreases exponentially with the temperature rise and has a negative temperature coefficient. For example, if the measured temperature of the battery is 25 degrees, it can be determined that the internal resistance consumption of the battery is 25mΩ. In this embodiment, when the second system of the terminal is in the dormant state, the terminal is directly powered by the battery, which will cause the battery of the terminal to generate heat, and the first fuel gauge 10 can obtain the first thermistor in the battery of the terminal The first battery temperature on the terminal, so as to determine the first battery power of the terminal according to the first battery temperature of the terminal and the battery output current of the terminal.

Optionally, when the second system is in a dormant state, the first fuel gauge may also collect a thermistor on the main board as the battery temperature. However, when the second system is in a dormant state, the temperature of the main board of the terminal will increase. At this time, if the first fuel gauge obtains the battery temperature of the terminal through the thermistor on the main board of the terminal, the obtained battery temperature value of the terminal will not be accurate enough. , in this embodiment, the first fuel gauge can increase the obtained first battery temperature on the first thermistor in the battery of the terminal by acquiring the first battery temperature on the first thermistor in the battery of the terminal the accuracy.

Optionally, the first fuel gauge can acquire the first battery temperature on the first thermistor in the battery of the terminal in the following two ways:

Mode 1: the first fuel gauge 10 is used to obtain the first battery temperature on the first thermistor through the NTC pin of the terminal battery when the second system is in a dormant state.

In this embodiment, as shown in Figure 3, the NTC pin of the terminal battery is connected to the first fuel gauge, and the first fuel gauge can collect the first battery temperature of the first thermistor on the terminal battery through the NTC pin. temperature, so that the first fuel gauge 10 can obtain the first battery temperature on the first thermistor through the NTC pin of the battery of the terminal when the second system of the terminal is in a dormant state.

Mode 2: the first fuel gauge 10 is used to obtain the first battery temperature on the first thermistor through the ID pin of the terminal battery when the second system is in a dormant state.

In this embodiment, the NTC pin of the terminal battery in Figure 3 can be disconnected from the first fuel gauge, so that the ID pin of the terminal battery can be connected to the first fuel gauge, and the first fuel gauge can pass the ID The pin collects the first battery temperature of the first thermistor on the battery of the terminal, so that the first fuel gauge 10 can obtain the first thermistor through the ID pin of the battery of the terminal when the second system of the terminal is in a sleep state. resistor on the first battery temperature.

In this embodiment, the first fuel gauge of the power detection circuit can obtain the first battery temperature on the first thermistor in the battery of the terminal when the second system of the terminal is in a dormant state. This process is very simple, thus It is ensured that the first fuel gauge can quickly determine the first battery temperature of the terminal.

When the first system of the above-mentioned terminal is in the dormant state, the current output by the battery of the terminal is converted to supply power for the terminal. At this time, the temperature of the main board of the terminal is basically the same as the temperature of the battery of the terminal or the difference between the two is not large. The second fuel gauge can Obtain the second battery temperature of the terminal in the following two ways:

Mode 1: In one embodiment, as shown in FIG. 4 , the above-mentioned power detection circuit 01 further includes: a second thermistor 30, the second thermistor 30 is arranged on the main board of the terminal, and the second thermistor 30 and the The second fuel gauge 20 is connected, and the second fuel gauge 20 is used to collect the second battery temperature on the second thermistor when the first system is in a dormant state.

Wherein, as shown in FIG. 4 , the first processor of the terminal is connected to the first fuel gauge 10, and the first fuel gauge 10 is connected to the conversion circuit DC-DC. The first fuel gauge passes the VBAT pin of the battery and the NTC of the battery The pins are connected to the battery, wherein the VBAT pin of the battery is the positive pin of the battery, and the GND pin of the battery in Figure 4 is the negative pin of the battery. The second processor is connected to the second fuel gauge 20, the CLK pin of the second processor is connected to the CLK pin of the second fuel gauge 20, and the SDA pin of the second processor is connected to the SDA pin of the second fuel gauge , the GPIO pin of the second processor is connected to the GPIO pin of the second fuel gauge. It can be understood that the CLK pin is a clock pin, and the connection between the second processor and the second fuel gauge can be controlled through the CLK pin. Operating frequency, the SDA pin is a data line pin, used to control the data interaction between the second processor and the second fuel gauge, the GPIO pin is an input and output pin, and the second fuel gauge can be connected to the second fuel gauge The BAT pin of the terminal is connected with the VBAT pin of the battery.

In this embodiment, when the first system is in the dormant state, the output current of the terminal battery is converted by a DC-DC conversion circuit and then a small current is used to supply power to the terminal. On the basis of the above-mentioned embodiment, the above-mentioned power detection circuit 01 also includes a second thermistor 30, the second thermistor 30 is arranged on the main board of the terminal, and the second thermistor 30 passes the second power The NTC pin on the gauge is connected to the second fuel gauge 20, and the second thermistor 30 can collect the temperature of the main board when the first system is in the dormant state. The temperature is basically the same or there is little difference between the two. The second thermistor 30 can determine the collected temperature of the motherboard as the second battery temperature of the terminal. The second fuel gauge 20 can collect the second battery temperature when the first system is in a sleep state. The above-mentioned second battery temperature on the thermistor 30 determines the second battery power of the terminal according to the battery output current of the terminal and the second battery temperature of the terminal.

In this embodiment, when the first system of the terminal is in the dormant state, the power supply current of the terminal is relatively small, and the terminal does not generate heat. The second thermistor on the main board of the terminal can accurately collect the temperature value of the main board, and then the temperature value of the main board can be directly determined as the second battery temperature of the terminal, and the second fuel gauge can be in the dormant state of the first system When , the second battery temperature on the second thermistor is collected, thereby improving the efficiency of determining the second battery temperature of the terminal.

Mode 2, in one embodiment, the above-mentioned second fuel gauge 20 is also used to obtain the above-mentioned second battery temperature from the NTC pin or ID pin of the battery of the terminal when the first system is in a dormant state.

In this embodiment, as shown in FIG. 5, the ID pin of the battery of the terminal is connected to the second fuel gauge 20. What needs to be explained here is that for the connection relationship between other modules and other pins in FIG. For the connection relationship between them, reference may be made to the above description of FIG. 4 , which will not be repeated here in this embodiment. In this embodiment, the thermistor on the battery of the terminal can detect the second battery temperature of the battery of the terminal, so that the second fuel gauge 20 can pass the NTC of the battery of the terminal when the first system of the terminal is in a sleep state. pin or ID pin to get the second battery temperature of the terminal. It should be noted that, through the NTC pin or the ID pin of the battery of the terminal, the second fuel gauge 20 can accurately obtain the temperature of the second battery of the terminal.

In this embodiment, when the first system of the terminal is in a dormant state, the second fuel gauge can accurately obtain the second battery temperature of the terminal from the ID pin of the battery of the terminal, which improves the second battery temperature obtained by the second fuel gauge of the terminal. Accuracy of battery temperature.

The above-mentioned first fuel gauge 10 determines the first battery power of the terminal according to the battery output current of the terminal and the first battery temperature of the terminal, and the second fuel gauge 20 determines the first battery power of the terminal according to the battery output current of the terminal and the second battery temperature of the terminal. In the scenario of two battery levels, both the first fuel gauge 10 and the second fuel gauge 20 can collect the battery output current of the terminal through the detection resistor in the power detection circuit 01. In one embodiment, please continue to refer to FIG. 5, the above-mentioned power The detection circuit 01 also includes: a detection resistor 40; the detection resistor 40 is respectively connected to the battery of the first fuel gauge 10, the second fuel gauge 20, and the terminal, and both the first fuel gauge 10 and the second fuel gauge 20 collect battery power through the detection resistor 40. Output current.

In this embodiment, the electric quantity detection circuit 10 further includes a detection resistor 40. As shown in FIG. Specifically, the second fuel gauge 20 is connected to the detection resistor 40 through its own SRN pin and SRP pin. In addition, the detection resistor 40 is also connected to the battery of the terminal through the VBAT pin of the battery. The above-mentioned first fuel gauge 10 and the second fuel gauge Both fuel gauges 20 collect terminal battery output current through the detection resistor 40 . Optionally, the principle of collecting the terminal battery output current by the first fuel gauge 10 and the second fuel gauge 20 through the detection resistor 40 can refer to the above description of FIG. 2 a , which will not be repeated here in this embodiment. It can be understood that the detection resistor 40 in this embodiment is equivalent to Rsns in FIG. 2a above. Optionally, the resistance value of the detection resistor 40 may be 10 mΩ, or 20 mΩ or other resistance values, which are not limited in this embodiment. It should be noted that if the resistance value of the detection resistor is increased, the accuracy of the measured terminal battery output current will be improved, but the loss of the detection resistor in the circuit will be increased.

In this embodiment, the power detection circuit further includes a detection resistor, which is respectively connected to the first fuel gauge, the second fuel gauge, and the battery of the terminal. The output current of the battery can be collected by the first fuel gauge and the second fuel gauge to the battery output current of the terminal through this detection resistor, so that while simplifying the structure of the power detection circuit, it can ensure that the first fuel gauge and the second fuel gauge Both fuel gauges can collect the output current of the terminal battery, and ensure the integrity of the power detection circuit function.

In some scenarios, the terminal will switch from the long-endurance mode to the high-computing mode, that is, the terminal will switch from the second system to the first system, and the second system will enter a sleep state. In one embodiment , the second processor is configured to send the second battery level detected by the second fuel gauge to the first processor when receiving the switching instruction, and the first processor is used to send the second battery level to the first Fuel gauge; the first fuel gauge is also used to determine the first battery power of the terminal based on the second battery power when the second system is in a dormant state according to the battery output current of the terminal and the first battery temperature of the terminal.

Wherein, the switching instruction is used to instruct the second processor to quit running the second system, so that the second system is in a dormant state. In this embodiment, when the second processor receives the switching instruction, it sends the second battery level of the terminal detected by the second fuel gauge 20 to the first processor, and the first processor sends the second battery level to the first processor after receiving the second battery level. The second battery level is sent to the first fuel gauge 10, so that the first fuel gauge 10 determines the terminal according to the terminal's battery output current and the terminal's first battery temperature based on the second battery level when the second system is in a dormant state. of the first battery level. For example, when the second processor receives the switching instruction, the second battery power of the terminal detected by the second fuel gauge 20 is 40%, then the second processor will set the second battery power of 40% detected by the second fuel gauge 20 to 40%. Send to the first processor, the first processor will send the second battery power 40% to the first fuel gauge 10, the first fuel gauge 10 will be based on the second battery power 40% of the terminal, according to the battery output current of the terminal and the terminal The first battery temperature determines the first battery capacity of the terminal.

In this embodiment, when the second processor receives the switching instruction, it sends the second battery level detected by the second fuel gauge to the first processor, and the first processor sends the second battery level to the first battery level. meter, so that the first fuel gauge can determine the first battery level of the terminal based on the second battery level, the terminal’s battery output current and the terminal’s first battery temperature when the second system is in a sleep state, so that the terminal will not When the first system is in a dormant state, it is impossible to determine how much power the second system consumes, thereby ensuring the accuracy of battery power calculation when the terminal switches to the first system.

In the second aspect, as shown in Figure 6, in an embodiment, the present application provides a power detection circuit 02, which is applied to a terminal, the terminal includes a first processor and a second processor, and the first processor The processor is used to run the first system, the second processor is used to run the second system, the operating power consumption of the first processor is greater than the operating power consumption of the second processor, and the power detection circuit 02 includes: a control switch 50 and a power gauge 60; The control switch 50 is used to turn on the path between the fuel gauge 60 and the first processor when the second system is in the dormant state, so that the fuel gauge 60 determines the terminal's battery output current according to the terminal's battery output current and the terminal's first battery temperature. The first battery power: the control switch 50 is also used to turn on the path between the fuel gauge 60 and the second processor when the first system is in a dormant state, so that the fuel gauge 60 is based on the battery output current of the terminal and the first battery output current of the terminal. The second battery temperature determines the second battery capacity of the terminal.

For the working principle of the fuel gauge 60 , refer to the description of the simplified battery fuel gauge shown in FIG. 2 a in the embodiment corresponding to FIG. 2 , and details will not be repeated here in this embodiment. In this embodiment, as shown in FIG. 6, a PMIC chip is mounted on the first processor of the terminal, and the PMIC chip is connected to the DC-DC conversion circuit. The processor is connected, wherein, more specifically, the GPIOUT pin of the fuel gauge 60 is connected to the GPIO pin of the control switch, and the GPIOUT pin of the fuel gauge 60 is connected to the GPIO pin of the second processor through the GPIO pin of the control switch, The SDA pin of the fuel gauge 60 is connected with the SDA pin of the second processor through the control switch, the CLK pin of the fuel gauge 60 is connected with the CLK pin of the second processor through the control switch, and the CLK pin of the fuel gauge 60 is connected through the The control switch is connected to the CLK pin of the first processor, the SDA pin of the fuel gauge 60 is connected to the SDA pin of the first processor through the control switch, and the GPIO pin of the first processor is also connected to the EN pin of the control switch. The pins are connected to the fuel gauge 60, wherein the CLK pin is a clock pin, and the operating frequency between the first processor, the second processor and the fuel gauge can be controlled through the CLK pin, and the SDA pin is a data line pin. The first processor can control the data interaction between it and the fuel gauge through the SDA pin, and the second processor can control the data interaction between it and the fuel gauge through the SDA pin. The above-mentioned GPIO pin is an input and output pin. The first processor, the second processor, and the fuel gauge can control data input and output through their own GPIO pins. In addition, the BAT pin of the fuel gauge 60 is connected to the VBAT pin of the terminal battery to control the input of the terminal battery current. The fuel gauge 60 is also connected to the terminal battery through the NTC pin of the terminal battery to obtain the terminal battery temperature. In this embodiment, when the second system of the terminal is in the dormant state, the control switch 50 of the power detection circuit 02 turns on the path between the fuel gauge 60 and the first processor of the terminal, so that the fuel gauge 60 The output current and the first battery temperature of the terminal determine the first battery capacity of the terminal. Optionally, a detection resistor can be set in the power detection circuit 02, and the fuel gauge 60 can obtain the output current of the battery according to the resistance value of the detection resistor in the power detection circuit 02 and the voltage difference between the two ends of the detection resistor, or can also be A current detector is installed at the output end of the battery of the terminal, and the fuel gauge 60 can obtain the output current of the battery of the terminal through the current detector. Optionally, a temperature sensor may be set in the battery of the terminal, and the fuel gauge 60 may acquire the first battery temperature of the terminal from the temperature sensor, or a thermistor may be set on the battery of the terminal, and the temperature may be obtained through the thermistor. Terminal's first battery temperature. Further, the fuel gauge 60 can determine the internal resistance consumption of the terminal battery according to the first battery temperature of the terminal, so as to obtain a current value corresponding to the internal resistance consumption of the terminal battery according to the internal resistance consumption of the terminal battery, and integrate the current value , to obtain the first power consumption of the battery of the terminal, and integrate the output current of the battery of the terminal to obtain the second power consumption of the battery of the terminal, and determine the sum of the first power and the second power as the total consumption of the terminal battery power, so as to determine the first battery power of the terminal; or, the fuel gauge 60 can determine the internal resistance consumption of the terminal battery according to the first battery temperature of the terminal, so as to obtain the internal resistance consumption of the terminal battery according to the internal resistance consumption of the terminal battery The corresponding current value is added to the terminal battery output current and the current value corresponding to the internal resistance consumption of the battery, and then integrated to obtain the total power consumption of the terminal battery, thereby determining the first battery power of the terminal. Optionally, the fuel gauge 60 may determine the difference between the corresponding battery power when the second system of the terminal enters the dormant state and the obtained total power consumption of the terminal battery as the first battery power of the terminal, for example, the second system of the terminal When entering the dormant state, the corresponding battery power is 70%, and the obtained total power consumption of the terminal battery is 10%, so the fuel gauge 60 determines that the first battery power of the terminal is 60%.

When the second system of the terminal is in the dormant state, the control switch 50 of the power detection circuit 02 conducts the path between the fuel gauge 60 and the second processor, so that the fuel gauge 60 outputs the current according to the battery output current of the terminal and the second battery of the terminal. The temperature determines the second battery level of the terminal. Optionally, a detection resistor can be set in the power detection circuit 02, and the fuel gauge 60 can obtain the output current of the battery according to the resistance value of the detection resistor in the power detection circuit 02 and the voltage difference between the two ends of the detection resistor, or can also be A current detector is installed at the output end of the battery of the terminal, and the fuel gauge 60 can obtain the output current of the battery of the terminal through the current detector. Optionally, a temperature sensor may be provided in the battery of the terminal, and the fuel gauge 60 may obtain the second battery temperature of the terminal from the temperature sensor, or a thermistor may be provided on the battery of the terminal, and the temperature of the second battery of the terminal may be obtained through the thermistor. Terminal's second battery temperature. Further, the fuel gauge 60 can determine the internal resistance consumption of the terminal battery according to the second battery temperature of the terminal, so as to obtain the current value corresponding to the internal resistance consumption of the terminal battery according to the internal resistance consumption of the terminal battery, and integrate the current value , to obtain the third power consumption of the battery of the terminal, and integrate the output current of the battery of the terminal to obtain the fourth power consumption of the battery of the terminal, and determine the sum of the third power and the fourth power as the total consumption of the terminal battery power, so as to determine the second battery power of the terminal; or, the fuel gauge 60 can determine the internal resistance consumption of the terminal battery according to the second battery temperature of the terminal, so as to obtain the internal resistance consumption of the terminal battery according to the internal resistance consumption of the terminal battery The corresponding current value is added to the terminal battery output current and the current value corresponding to the internal resistance consumption of the battery, and then integrated to obtain the total power consumption of the terminal battery, thereby determining the second battery power of the terminal. Optionally, the fuel gauge 60 may determine the difference between the corresponding battery power when the first system of the terminal enters the dormant state and the obtained total power consumption of the terminal battery as the second battery power of the terminal, for example, the first system of the terminal When entering the dormant state, the corresponding battery power is 50%, and the obtained total power consumption of the terminal battery is 20%, so the fuel gauge 60 determines that the second battery power of the terminal is 30%.

In this embodiment, the control switch of the power detection circuit can turn on the path between the fuel gauge and the first processor when the second system is in the dormant state, so that the fuel gauge can The battery temperature determines the first battery capacity of the terminal, and the control switch can turn on the path between the fuel gauge and the second processor when the first system is in a dormant state, so that the fuel gauge can The temperature of the second battery determines the second battery level of the terminal, that is to say, when the first system of the terminal enters the dormant state by using the power detection circuit, the fuel gauge can still detect the second battery level of the terminal, so that the terminal can operate at the first When the system enters the dormant state, it can still accurately display the terminal power.

On the basis of the above embodiments, in one embodiment, the fuel gauge 60 is configured to acquire the first battery temperature on the thermistor in the battery of the terminal when the second system is in a sleep state.

In this embodiment, the battery of the terminal is provided with a thermistor NTC, wherein the thermistor NTC refers to a thermistor phenomenon and material that decreases exponentially with temperature rise and has a negative temperature coefficient. The thermistor can detect the temperature of the battery, that is, when the second system of the terminal is in a dormant state, the fuel gauge 60 can obtain the first battery temperature on the thermistor in the battery of the terminal. Further, when the second system of the terminal is in a dormant state, the fuel gauge 60 may obtain the second battery temperature of the terminal from the thermistor NTC pin of the battery of the terminal.

Optionally, the fuel gauge 60 can acquire the first battery temperature on the thermistor in the battery of the terminal in the following two ways:

Way 1: The fuel gauge 60 is used to obtain the temperature of the first battery on the thermistor through the NTC pin of the terminal battery when the second system is in a dormant state.

In this embodiment, please continue to refer to FIG. 6 , the NTC pin of the terminal battery is connected to the fuel gauge, and the fuel gauge can collect the first battery temperature of the thermistor on the terminal battery through the NTC pin, so that the fuel gauge 60 When the second system of the terminal is in a dormant state, the temperature of the first battery on the thermistor can be acquired through the NTC pin of the battery of the terminal.

Method 2: The fuel gauge 60 is used to obtain the temperature of the first battery on the thermistor through the ID pin of the battery of the terminal when the second system is in a dormant state.

In this embodiment, the NTC pin of the terminal battery in Figure 6 can be disconnected from the fuel gauge, so that the ID pin of the terminal battery can be connected to the fuel gauge, and the fuel gauge can collect the terminal battery through the NTC pin. The fuel gauge 60 can obtain the first battery temperature on the thermistor through the ID pin of the battery of the terminal when the second system of the terminal is in a dormant state.

In this embodiment, when the second system of the terminal is in a dormant state, the fuel gauge can quickly determine the battery temperature of the terminal by acquiring the first battery temperature on the thermistor in the battery of the terminal, thereby improving the efficiency of the fuel gauge. Determine the efficiency of the terminal's battery temperature.

In the above scenario where the fuel gauge determines the first battery level of the terminal according to the battery output current of the terminal and the first battery temperature of the terminal, and determines the second battery level of the terminal according to the battery output current of the terminal and the second battery temperature of the terminal, In one embodiment, as shown in FIG. 7 , the power detection circuit 02 further includes: a detection resistor 70; the detection resistor 70 is respectively connected to the fuel gauge 60 and the battery of the terminal; the fuel gauge 60 collects the above-mentioned battery output current through the detection resistor 70 .

Among them, the connection relationship between the first processor, the second processor, and the fuel gauge in Figure 7, and the connection relationship between the pins of the first processor, the pins of the second processor, and the pins of the fuel gauge, please refer to The foregoing description of FIG. 6 will not be repeated here in this embodiment. In this embodiment, the power detection circuit 20 further includes a detection resistor 70, which is respectively connected to the fuel gauge 60 and the terminal battery. More specifically, the detection resistor 70 is connected to the SRN pin and the SRP lead The pin is connected to the fuel gauge, and the fuel gauge 60 can collect the battery output current of the terminal through the detection resistor 70 . It should be noted that the principle of the fuel gauge 60 collecting the battery output current of the terminal through the detection resistor 70 can refer to the above description of FIG. 2 a , which will not be repeated here in this embodiment. It can be understood that the detection resistor 70 in this embodiment is equivalent to Rsns in FIG. 2a above.

In this embodiment, the power detection circuit also includes a detection resistor, which is respectively connected to the battery of the fuel gauge and the terminal, and the fuel gauge can collect the output current of the battery of the terminal through the detection resistor. The collection of the battery output current of the terminal simplifies the structure of the power detection circuit while ensuring that the fuel gauge can accurately collect the output current of the terminal battery, ensuring the integrity of the power detection circuit function.

In one embodiment, a terminal is provided, which can be a wearable device, and its internal structure diagram can be any of the structures shown in Figure 2-Figure 5, or can be as shown in Figure 6-Figure 7 any of the structures shown. The terminal includes a first processor, used to run the first system; a second processor, used to run the second system; and a power detection circuit according to the first aspect or the second aspect; wherein, the operating function of the first processor Consumption is greater than the operating power consumption of the second processor; for example, the first processor can be a powerful processor running on the Android system; the second processor can be a low-power processor running on systems such as FreeRTOS and MCU. The memory of the terminal includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The communication interface of the terminal is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be realized through WIFI, an operator network, NFC (Near Field Communication) or other technologies. The display screen of the terminal may be a liquid crystal display screen or an electronic ink display screen, and the input device of the terminal may be a touch layer covered on the display screen, or a button, a trackball or a touch pad provided on the terminal shell, or It is an external keyboard, touchpad or mouse, etc.

In addition, in an embodiment, as shown in FIG. 8 , there is provided a power determination method, which is applied to a terminal. The terminal includes: a first processor and a second processor, the first processor is used to run the first system, and the second processor is used to run the first system. The two processors are used to run the second system, and the operating power consumption of the first processor is greater than the operating power consumption of the second processor. The method includes:

S801. When the second system is in a dormant state, the first system determines the first battery power of the terminal through the first fuel gauge;

S802. When the first system is in a dormant state, the second system determines the second battery power of the terminal by using the second power gauge.

It can be understood that the above process is realized by computer program instructions, and these computer program instructions are provided to the processors of general-purpose computers, special-purpose computers, embedded processors, or other programmable data processing devices, so that through this computer or other programmable data The instructions executed by the processor of the processing device can implement this embodiment to realize that when the large-core system of the terminal enters a dormant state, the small-core system can accurately display the power of the terminal. Of course, these computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means. Alternatively, these computer program instructions can also be loaded on a computer or other programmable data processing device, so that a series of operation steps are performed on the computer or other programmable device to produce a computer-implemented process, so that on the computer or other programmable device Executing the computer program instructions realizes the above functions.

Optionally, in an embodiment, the above method further includes: when the second system detects the switching instruction, waking up the first system, and sending the second battery level determined by the second fuel gauge to the first system; The system sends the second battery level to the first fuel gauge, so that the first fuel gauge determines the terminal's first battery level based on the second battery level, according to the terminal's battery output current and the terminal's first battery temperature.

It can be understood that the above process is realized by computer program instructions, and these computer program instructions are provided to the processors of general-purpose computers, special-purpose computers, embedded processors, or other programmable data processing devices, so that through this computer or other programmable data The instructions executed by the processor of the processing device can implement this embodiment to realize that when the large-core system of the terminal enters a dormant state, the small-core system can accurately display the power of the terminal. Of course, these computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means. Alternatively, these computer program instructions can also be loaded on a computer or other programmable data processing device, so that a series of operation steps are performed on the computer or other programmable device to produce a computer-implemented process, so that on the computer or other programmable device Executing the computer program instructions realizes the above functions.

In addition, in an embodiment, as shown in FIG. 9 , there is provided a method for determining power, which is applied to a terminal. The terminal includes: a first processor and a second processor, the first processor is used to run the first system, and the second processor is used to run the first system. The two processors are used to run the second system, and the operating power consumption of the first processor is greater than the operating power consumption of the second processor. The method includes:

S901. When the second system is in a dormant state, the first system turns on the path between the fuel gauge and the first processor, and determines the first battery power of the terminal through the fuel gauge;

S902. When the first system is in a dormant state, the second system turns on the path between the fuel gauge and the second processor, and determines the second battery power of the terminal through the fuel gauge.

It can be understood that the above process is realized by computer program instructions, and these computer program instructions are provided to the processors of general-purpose computers, special-purpose computers, embedded processors, or other programmable data processing devices, so that through this computer or other programmable data The instructions executed by the processor of the processing device can implement this embodiment to realize that when the large-core system of the terminal enters a dormant state, the small-core system can accurately display the power of the terminal. Of course, these computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means. Alternatively, these computer program instructions can also be loaded on a computer or other programmable data processing device, so that a series of operation steps are performed on the computer or other programmable device to produce a computer-implemented process, so that on the computer or other programmable device Executing the computer program instructions realizes the above functions.

The embodiment of the present application also provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, any method steps for determining the electric quantity provided in the foregoing embodiments are implemented.

Any reference to memory, storage, database, or other medium as used herein may include non-volatile and/or volatile memory. Non-volatile memory can include ROM (Read-Only Memory, read-only memory), PROM (Programmable Read-only Memory, programmable read-only memory), EPROM (Erasable Programmable Read-Only Memory, erasable programmable read-only memory ), EEPROM (Electrically Erasable Programmable Read-only Memory, Electrically Erasable Programmable Read-Only Memory) or flash memory. The volatile memory may include RAM (Random Access Memory), which is used as an external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as SRAM (Static Random Access Memory, Static Random Access Memory), DRAM (Dynamic Random Access Memory, Dynamic Random Access Memory), SDRAM (Synchronous Dynamic Random Access Memory , synchronous dynamic random access memory), double data rate DDRSDRAM (Double Data Rate Synchronous Dynamic Random Access memory, double data rate synchronous dynamic random access memory), ESDRAM (Enhanced Synchronous Dynamic Random Access memory, enhanced synchronous dynamic random access memory), SLDRAM (Sync Link Dynamic Random Access Memory, synchronous link dynamic random access memory), RDRAM (Rambus Dynamic Random Access Memory, bus dynamic random access memory), DRDRAM (Direct Rambus Dynamic Random Access Memory, interface dynamic random access memory ).

The above-mentioned embodiments only express several implementation modes of the present application, and the description thereof is relatively specific and detailed, but should not be construed as limiting the patent scope of the present application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of protection of the patent application should be based on the appended claims.

Claims (22)

1. A power detection circuit, characterized in that the power detection circuit is applied to a terminal, and the terminal includes a first processor and a second processor, the first processor is used to run the first system, and the second Two processors are used to run the second system, and the operating power consumption of the first processor is greater than the operating power consumption of the second processor; the power detection circuit includes: a first fuel gauge, configured to determine the first battery power of the terminal according to the battery output current of the terminal and the first battery temperature of the terminal when the second system is in a dormant state; The second fuel gauge is configured to determine the second battery power of the terminal according to the battery output current of the terminal and the second battery temperature of the terminal when the first system is in a dormant state. 2. The electricity detection circuit according to claim 1, wherein the first electricity meter is connected to the first processor and the battery of the terminal respectively, and the second electricity meter is connected to the second electricity meter respectively. The second processor is connected to the battery. 3. The power detection circuit according to claim 2, wherein the second power gauge is also used to, when the second system is in a dormant state, according to the battery output current of the terminal and the terminal The first battery temperature determines a third battery charge; the third battery charge is used to calibrate the first battery charge. 4. The power detection circuit according to claim 3, wherein the second fuel gauge is connected to the first fuel gauge, and the second fuel gauge is also used to transmit the third battery power to the the first fuel gauge; The first fuel gauge is also used to calibrate the first battery power according to the third battery power. 5. The power detection circuit according to claim 3, wherein the terminal further comprises a battery management chip; the battery management chip is connected to the first fuel gauge, the second fuel gauge, and the second fuel gauge respectively. a processor connection; The battery management chip is used for calibrating the first battery level according to the third battery level. 6. The power detection circuit according to claim 5, wherein the first fuel gauge is integrated in the battery management chip. 7. The power detection circuit according to any one of claims 1-6, wherein the first power gauge is turned off when the first system is in a dormant state. 8. The power detection circuit according to any one of claims 1-6, wherein the first fuel gauge is also used to obtain the battery status of the terminal when the second system is in a dormant state. the first battery temperature on the first thermistor. 9. The power detection circuit according to claim 8, wherein the first fuel gauge is used to, when the second system is in a dormant state, use the NTC pin or the ID pin of the battery of the terminal to pin to obtain the first battery temperature on the first thermistor. 10. The power detection circuit according to any one of claims 1-6, wherein the power detection circuit further comprises: a second thermistor, the second thermistor is arranged on the main board of the terminal above, the second thermistor is connected to the second fuel gauge; The second fuel gauge is configured to collect the second battery temperature on the second thermistor when the first system is in a dormant state. 11. The electricity detection circuit according to any one of claims 1-6, characterized in that, the electricity detection circuit further comprises: a detection resistor; the detection resistor is respectively connected to the first electricity meter, the second Fuel gauge, battery connection to said terminal; Both the first fuel gauge and the second fuel gauge collect the battery output current through the detection resistor. 12. The power detection circuit according to any one of claims 1-6, wherein the second processor is configured to, when receiving a switching instruction, switch the second power detected by the second power gauge to Second, battery power is sent to the first processor; the first processor configured to send the second battery level to the first fuel gauge; The first fuel gauge is further configured to determine the battery output current of the terminal and the first battery temperature of the terminal based on the second battery power when the second system is in a dormant state. of the first battery level. 13. A power detection circuit, characterized in that the power detection circuit is applied to a terminal, and the terminal includes a first processor and a second processor, the first processor is used to run the first system, and the second Two processors are used to run the second system, and the operating power consumption of the first processor is greater than the operating power consumption of the second processor; the power detection circuit includes: a control switch and a power gauge; The control switch is configured to turn on the path between the fuel gauge and the first processor when the second system is in a dormant state, so that the fuel gauge outputs the current according to the battery output current of the terminal and a first battery temperature of the terminal determines a first battery level of the terminal; The control switch is further configured to turn on the path between the fuel gauge and the second processor when the first system is in a dormant state, so that the fuel gauge outputs current according to the battery of the terminal and the second battery temperature of the terminal to determine the second battery level of the terminal. 14. The electricity detection circuit according to claim 13, wherein the electricity meter is connected to the first processor and the second processor respectively through the control switch; the electricity meter is also connected to the battery connection to the terminal described above. 15. The power detection circuit according to claim 14, wherein the fuel gauge is used to acquire the temperature of the thermistor in the battery of the terminal when the second system is in a dormant state. first battery temperature. 16. The power detection circuit according to claim 15, wherein the power gauge is used to obtain the power through the NTC pin or ID pin of the battery of the terminal when the second system is in a dormant state. The first battery temperature on the thermistor. 17. The electricity detection circuit according to claim 16, characterized in that, the electricity detection circuit further comprises: a detection resistor; the detection resistor is respectively connected to the fuel gauge and the battery of the terminal; The fuel gauge collects the battery output current through the detection resistor. 18. A terminal, characterized in that the terminal comprises: a first processor, configured to run a first system; A second processor configured to run a second system; the operating power consumption of the first processor is greater than the operating power consumption of the second processor; and The power detection circuit according to any one of claims 1-17. 19. A method for determining power, which is applied to a terminal, wherein the terminal comprises: a first processor and a second processor, the first processor is used to run the first system, and the second processor is used to Running the second system, the operating power consumption of the first processor is greater than the operating power consumption of the second processor, the method comprising: When the second system is in a dormant state, the first system determines the first battery power of the terminal through a first fuel gauge; The second system determines the second battery power of the terminal through a second power gauge when the first system is in a dormant state. 20. The method for determining electric quantity according to claim 19, characterized in that the method further comprises: The second system wakes up the first system when detecting a switching instruction, and sends the second battery level determined by the second fuel gauge to the first system; The first system sends the second battery level to the first fuel gauge, so that the first fuel gauge is based on the second battery level, according to the terminal's battery output current and the terminal's The first battery temperature determines a first battery capacity of the terminal. 21. A method for determining power, which is applied to a terminal, wherein the terminal comprises: a first processor and a second processor, the first processor is used to run the first system, and the second processor is used to Running the second system, the operating power consumption of the first processor is greater than the operating power consumption of the second processor, the method comprising: The first system turns on the path between the fuel gauge and the first processor when the second system is in the dormant state, and determines the first battery power of the terminal through the fuel gauge; When the first system is in a dormant state, the second system turns on the path between the fuel gauge and the second processor, and determines the second battery power of the terminal through the fuel gauge. 22. A computer-readable storage medium, on which a computer program is stored, wherein when the computer program is executed by a processor, the steps of the method according to any one of claims 19 to 21 are implemented.

Images