TWI442702B - Portable electronic device and method for detecting battery module thereof - Google Patents

Description

Portable electronic device and battery module sensing method thereof

The present invention relates to a portable electronic device, and more particularly to a portable electronic device capable of detecting the interface type of a current battery module for corresponding circuit switching. In addition, the present invention also includes a battery module sensing method applied to a portable electronic device.

The portable electronic device has the characteristics of portability, so the replaceable battery module is used as a power supply source. When the battery module is low in power, the battery module can be directly replaced or charged, so that the device can be continuously used. . The traditional battery module only provides the effect of power supply, but with the advancement of technology, a higher-standard battery module is also born, and a protection circuit and a capacitance monitoring component are added inside, thereby improving the battery module. Stability and functionality in use.

At present, the connection interfaces used in such high-standard battery modules are roughly classified into an I2C (Inter-Integrated Circuit) interface and an HDQ (Harmonic-Differential-quadrature) interface, which are corresponding to the design requirements of different electronic devices. Settings. Since the signal transmission methods of the I2C interface and the HDQ interface are not the same, the two connection interfaces cannot be intercommunicated, so each electronic device only selects one of the interface types for use. In this case, when the plurality of electronic devices purchased by the user respectively support two different interfaces, since the battery modules cannot be compatible and shared, it is necessary to prepare battery modules of different interfaces for standby, which will cause user troubles. . Therefore, how to provide a related art that a portable electronic device can be compatible with battery modules of different interfaces is a subject worthy of study.

The main object of the present invention is to provide a portable electronic device capable of detecting the interface type of a current battery module for corresponding circuit switching.

To achieve the above, the portable electronic device of the present invention comprises a connection interface, a switching module and a detection module. The connection interface is electrically connected to a battery module; the switch module is electrically connected to the connection interface by the two lines to receive the battery signal transmitted by the battery module through the two lines, wherein the battery signal includes a clock signal and Information signal. The detection module discriminates the interface type of the battery module by detecting that the clock signal and the data signal are transmitted on the same line or in different lines in the two lines, and notifies the switching module according to the interface of the battery module. The type switches the corresponding transmission line.

In addition, the present invention also provides a battery module sensing method applied to the aforementioned portable electronic device. The method includes the steps of: determining whether the portable electronic device is electrically connected to the battery module; and if so, receiving the battery signal transmitted by the battery module, wherein the battery signal includes a clock signal and a data signal; detecting the clock signal and Whether the data signal is transmitted through the same line to determine the interface type of the corresponding battery module; and the corresponding transmission line is switched according to the interface type of the battery module.

According to the design of the present invention, when the user uses the I2C interface or the HDQ interface of the battery module to be assembled in the portable electronic device, the interface of the current battery module can be judged through the signal difference generated after the electrical connection. Why, and let the portable electronic device automatically switch the transmission line corresponding to the interface to improve the convenience of use.

In order to enable the reviewing committee to better understand the technical contents of the present invention, the preferred embodiments are described below.

Please refer to FIG. 1 for a schematic diagram of the portable electronic device 1 of the present invention. In an embodiment of the present invention, the portable electronic device 1 can be a smart phone, a PDA, or other portable device using a battery module, but is not limited to the embodiment.

As shown in FIG. 1 , the portable electronic device 1 of the present invention includes a connection interface 10 , a switching module 20 , and a detection module 30 . The connection interface 10 is disposed in a battery receiving slot (not shown) of the portable electronic device 1. The battery receiving slot can accommodate a battery module 80, so that when the battery module 80 is installed in the battery In the case of the slot, the interface of the battery module 80 is electrically connected to the connection interface 10. Since the battery module 80 of the I2C interface or the HDQ interface is provided with four contacts, one power contact, two signal contacts and one ground contact, respectively, the portable device of the present invention The connection interface 10 of the electronic device 1 is also provided with four contacts for electrical connection with the contacts of the battery module 80, but the invention is not limited thereto.

The switching module 20 is electrically connected to the two contacts of the connection interface 10 by the two lines 21 and 22, and the two contacts are respectively connected to the two signal contacts of the corresponding battery module 80 to receive the battery module. The battery signal transmitted by the group 80 through the interface interface 10 and the two lines 21, 22, wherein the battery signal includes a clock signal and a data signal. The switching module 20 has two sets of switching switches 23 and 24, respectively corresponding to the two lines 21 and 22, and switches the corresponding transmission lines according to the interface type of the battery module 80 determined.

The detecting module 30 is electrically connected to the two lines 21 and 22 respectively for detecting the lines 21 and 22. By detecting the clock signal and the data signal transmitted by the battery module 80, whether the same line is used in any of the two lines 21 and 22 (the instantaneous pulse signal and the data signal are transmitted by line 21 or line 22) Or each of the different lines (the instant pulse signal and the data signal are transmitted by line 21 and line 22 respectively) to determine the interface type corresponding to the battery module 80.

Since the battery signals transmitted through the two lines 21 and 22 are also different according to the interface type of the battery module 80, the battery module can be determined by detecting the state of the two lines 21 and 22. The effect of the interface type of 80. For the battery module 80 of the I2C interface, the clock signal and the data signal are transmitted through two different contacts, so that the two lines 21 and 22 corresponding to the end of the portable electronic device respectively transmit the clock. For the signal and data signals, the detection module 30 can determine that the battery module 80 is currently installed with the I2C interface. In the case of the battery module 80 of the HDQ interface, the clock signal and the data signal are combined and transmitted only by a single signal contact, and the other signal contact is responsible for detecting and transmitting the temperature change inside the battery module 80, so that The first end of the portable electronic device transmits only the clock signal and the data signal through one of the lines 21 or 22 of the corresponding connection, and the other line transmits only the temperature change signal, and the detection module 30 can determine Currently, the battery module 80 of the HDQ interface is installed. After the detection module 30 determines the interface type of the battery module 80 that is currently electrically connected, the switching module 20 is notified to switch the corresponding transmission line according to the interface type of the battery module 80.

Please refer to FIG. 2 for a signal difference table in which the portable electronic device 1 of the present invention is electrically connected to the battery module 80 of different interface types. In an embodiment of the present invention, the detection module 30 detects the signal level of each of the lines 21 and 22 to assist in determining that the clock signal and the data signal are all on the same line of the two lines 21 and 22 or Each is transmitted by a different line. Since different signal levels are generated according to the different signals when different signals are transmitted, the detection module 30 detects that the signal levels of the lines 21 and 22 are at a high potential or a low level to determine the lines 21 and 22. The signal transmission state, and then the interface type of the currently connected battery module 80 is known.

As shown in FIG. 2, when the portable electronic device 1 of the present invention is electrically connected to the battery module 80 of the 12C interface, the lines 21 and 22 are respectively used to transmit the clock signal SCL and the data signal SDA. The lines 21 and 22 all assume a state of high potential H. When the portable electronic device 1 of the present invention is electrically connected to the battery module 80 of the HDQ interface, only one of the two lines 21 or 22 is required (assuming For the line 21) to transmit the combined clock signal and data signal HDQ, the line 21 will assume a state of high potential H, and the other line (assumed to be line 22) will only transmit the temperature change signal TH, its signal bit It is not too high that the line 22 assumes a state of low potential L.

Accordingly, it is assumed that the switching module 20 presets the switching to the transmission circuit of the battery module 80 corresponding to the HDQ interface. Therefore, the detection module 30 detects that the two lines 21 and 22 are at a low potential or the respective signal levels are different. (ie, a high potential and a low potential), it is determined that the battery module 80 of the HDQ interface is used or the battery module 80 is not installed, and the switching module 20 maintains the original corresponding circuit state; once in the detection module When it is detected that the two lines 21 and 22 are at a high potential, it is determined that the battery module 80 of the I2C interface is used at this time, so the switching module 20 switches to the battery corresponding to the I2C interface according to the notification of the detecting module 30. The transmission circuit of the module 80. By this design, the switching operation of the corresponding transmission circuit of the switching module 20 can be easily completed by the difference of the signal level.

In an embodiment of the present invention, the detecting module 30 further includes a timer 31. In order to prevent misconnection between the battery module 80 and the connection interface 10, the signal is unstable, and the timer 31 is used. The calculation detecting module 30 continuously detects that the signal level reaches a certain time, and if so, uses the currently measured signal level as a criterion.

The portable electronic device 1 of the present invention further includes a processing module 40 and a display module 50. The processing module 40 is configured to receive the battery signal transmitted by the switching module 20 to confirm the interface type of the battery module 80 currently used, and after receiving the battery signal, execute the device according to the operation instruction of the user. The internal system boot process prevents problems such as system errors or battery module 80 power supply problems. The processing module 40 can perform read and write operations on the state of the battery module 80 after the system is powered on, and can display status information corresponding to the current battery module 80 by using the display module 50, such as a power display and a battery module. 80 interface type display, etc.

Please refer to FIG. 3, which is a flow chart of a battery module sensing method to which the present invention is applied. It should be noted that the following describes the battery module sensing method of the present invention by taking the portable electronic device 1 shown in FIG. 1 as an example. However, the present invention is not limited to the portable electronic device 1 and any Other portable electronic devices with similar architectures are also applicable. As shown in FIG. 3, the battery module sensing method of the present invention includes steps S301 to S307. The respective steps of the battery module sensing method of the present invention will be described in detail below.

Step S301: Determine whether the portable electronic device 1 is electrically connected to the battery module 80. When the portable electronic device 1 is electrically connected to the battery module 80, the connection interface 10 of the portable electronic device 1 obtains a corresponding power signal by using the power contact and the ground contact of the battery module 80. It is determined whether the portable power device 1 is electrically connected to the battery module 80 by detecting whether the power signal is generated.

Step S302: If yes, receive the battery signal transmitted by the battery module 80, wherein the battery signal includes a clock signal and a data signal. After confirming whether the portable electronic device 1 is electrically connected to the battery module 80, the connection interface 10 of the portable electronic device 1 obtains the corresponding power signal through the two signal contacts of the battery module 80. And passed into the two lines 21, 22 electrically connected to the switching module 20. The battery signal includes a clock signal and a data signal.

Step S303: Detect whether the clock signal and the data signal are transmitted via the same line 21 or 22 to determine the interface type of the corresponding battery module 80. As described above, the detection module 30 detects the signal level of the two lines 21 and 22, and when the two lines 21 and 22 are detected to be low or at different potentials, the incoming clock is indicated. The signal and the data signal are transmitted through any of the same lines 21 or 22, that is, the interface type of the battery module 80 is determined to be the HDQ interface; if not, when the two lines 21 and 22 are detected to be high, the incoming signal is indicated. The clock signal and the data signal are transmitted through different lines 21 and 22 respectively, that is, the interface type of the battery module 80 is determined to be an I2C interface.

Step S304: Switch the corresponding transmission line according to the interface type of the battery module 80. After determining the interface type of the battery module 80 according to the foregoing step S303, the detecting module 30 notifies the switching module 20 to switch the corresponding transmission circuit according to the interface type of the current battery module 80, so as to smoothly transmit the battery signal to the processing module. Group 40.

Step S304 may further include step S305: starting a system booting process. After the corresponding transmission line is switched in the foregoing step S304, the processing module 40 receives the battery signal, and indicates that the installation of the power module 80 and the corresponding circuit switching have been completed. At this time, the processing module 40 can execute the system startup procedure according to the instruction, and The status information of the current battery module 80 can be displayed through the display module 50.

In summary, the present invention is a breakthrough in terms of its purpose, means and efficacy, and it is different from the characteristics of the prior art. It is a great breakthrough for the reviewer to ask for an early patent, and to benefit the society. Debian. It is to be noted that the above-described embodiments are merely illustrative of the principles of the invention and its advantages, and are not intended to limit the scope of the invention. Modifications and variations of the embodiments can be made by those skilled in the art without departing from the spirit and scope of the invention. The scope of protection of the present invention should be as described in the scope of the patent application to be described later.

1. . . Portable electronic device

10. . . Connection interface

20. . . Switching module

21, 22. . . line

23, 24. . . Toggle switch

30. . . Detection module

31. . . Timer

40. . . Processing module

50. . . Display module

80. . . Battery module

1 is a schematic diagram of a portable electronic device of the present invention.

2 is a signal difference table of the electrical connection between the portable electronic device of the present invention and the battery module of different interface types.

3 is a flow chart of a battery module sensing method to which the present invention is applied.

1. . . Portable electronic device

10. . . Connection interface

20. . . Switching module

21, 22. . . line

23, 24. . . Toggle switch

30. . . Detection module

31. . . Timer

40. . . Processing module

50. . . Display module

80. . . Battery module

Claims (13)

A portable electronic device includes: a connection interface for electrically connecting a battery module; and a switching module electrically connecting the connection interface by two lines to receive the battery module through the two lines A battery signal is transmitted, wherein the battery signal includes a clock signal and a data signal; and a detection module is electrically connected to the two lines, wherein the detection module detects the clock signal And the data signal is transmitted by using the same line or the different lines of the two lines to determine the interface type of the battery module, and notifying the switching module to switch the corresponding transmission line according to the interface type of the battery module. . The portable electronic device of claim 1, wherein the interface type of the battery module comprises an Inter-Integrated Circuit (I2C) interface or a Harmonic-Differential- Quadrature, HDQ) interface. The portable electronic device of claim 2, wherein the detection module detects a signal level of each of the two lines to determine that the clock signal and the data signal are The same lines in the two lines or each are transmitted by different lines. The portable electronic device of claim 3, wherein when the signal level of each of the two lines is high, the interface type of the battery module is determined to be the I2C interface; When the respective signal levels are different or both are low, the interface type of the battery module is determined to be the HDQ interface. The portable electronic device of claim 1, further comprising a timer for calculating whether the detecting module continuously detects the signal level for a specific time. The portable electronic device of claim 1, further comprising a processing module and a display module, wherein the processing module receives the battery signal through the switching module, and the display module The group displays status information corresponding to the battery module. The portable electronic device of claim 6, wherein the processing module starts to execute a system booting process after the switching module completes switching of the corresponding transmission line. A battery module sensing method is applied to a portable electronic device, and the method includes the following steps: determining whether the portable electronic device is electrically connected to a battery module; if yes, receiving the battery module to transmit a battery signal, wherein the battery signal includes a clock signal and a data signal; detecting whether the clock signal and the data signal are transmitted via the same line to determine the interface type of the corresponding battery module; and The interface type of the module switches to the corresponding transmission line. The method of claim 8, wherein the interface type of the battery module comprises an I2C interface or an HDQ interface. The method of claim 9, wherein the signal level of each of the two lines is detected to determine whether the clock signal and the data signal are transmitted via the same line. For example, the method described in claim 8 further includes the following steps: starting a system booting procedure. The method of claim 11, wherein the system startup process is performed after the completion of the switching of the corresponding transmission line. The method of claim 8, wherein calculating whether the detection module continuously detects the signal level for a specific time.