CN102736714B - Portable electronic device and battery module sensing method thereof - Google Patents

Abstract

A portable electronic device and a battery module sensing method thereof are provided. The portable electronic device comprises a connecting interface, a switching module and a detection module; the connecting interface is used for electrically connecting a battery module; the switching module is electrically connected with the connecting interface through two lines to receive a battery signal transmitted by the battery module through the two lines, wherein the battery signal comprises a clock signal and a data signal; the detection module is electrically connected to the two lines respectively, and the detection module judges the interface type of the battery module by detecting that the clock signal and the data signal are transmitted by the same line or different lines in the two lines respectively, and informs the switching module to switch the corresponding transmission line according to the interface type of the battery module. The invention can judge the interface of the current battery module and automatically switch the transmission line corresponding to the interface of the portable electronic device, thereby improving the convenience in use.

Description

Portable electronic device and battery module sensing method thereof

technical field

The invention relates to a portable electronic device, in particular to a portable electronic device capable of detecting the interface type of a current battery module to switch corresponding circuits. In addition, the present invention also includes a battery module sensing method applied to portable electronic devices.

Background technique

Portable electronic devices are characterized by portability, so a 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 continue to use. The traditional battery module only provides the effect of power supply, but with the advancement of technology, a higher specification battery module is also born, and a protection circuit and a capacity monitoring component are added inside, which improves the safety of the battery module in use. stability and functionality.

At present, the connection interfaces used by such high-standard battery modules are roughly divided into two types: I2C (Inter-Integrated Circuit, internal integrated circuit) interface and HDQ (Harmonic-Differential-quadrature, harmonic differential-quadrature) interface. The design requirements of the electronic device are set accordingly. Since the signal transmission methods of the I2C interface and the HDQ interface are different, the aforementioned two connection interfaces cannot communicate with each other, so each electronic device will only select one of the interface forms to use. In this case, when a plurality of electronic devices purchased by the user support two different interfaces, the battery modules with different interfaces must be prepared for backup because the battery modules cannot be compatible and shared, which will cause troubles for the users. Therefore, how to provide a related technology for the portable electronic device to be compatible with battery modules with different interfaces is a topic worth studying.

Contents of the invention

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

To achieve the above object, the portable electronic device of the present invention includes a connection interface, a switch module and a detection module; the connection interface is used to electrically connect a battery module; the switch module is electrically connected to the connection through two lines interface to receive a battery signal from the battery module through the two lines, wherein the battery signal includes a clock signal and a data signal; the detection modules are electrically connected to the two lines respectively, and the detection module detects The clock signal and the data signal are transmitted through the same line or different lines of the two lines to determine the interface type of the battery module, and notify the switching module to switch the corresponding transmission line according to the interface type of the battery module.

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

With the design of the present invention, when the user installs the battery module with the I2C interface or the HDQ interface in the portable electronic device, the interface of the current battery module can be judged by the signal difference generated after the electrical connection, and let The portable electronic device automatically switches the transmission line corresponding to the interface, so as to improve the convenience in use.

Description of drawings

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

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

FIG. 3 is a flow chart of the battery module sensing method of the present invention.

Description of main component symbols:

Portable electronic device 1 detection module 30

connection interface 10 timer 31

Switching module 20 Processing module 40

Line 21, 22 display module 50

Switch 23, 24 battery module 80

detailed description

In order to allow the examiners to better understand the technical content of the present invention, preferred embodiments are given and described as follows.

Please refer to FIG. 1 first. FIG. 1 is a schematic diagram of a 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 personal digital assistant (PDA) or other portable devices using battery modules, but not limited to this embodiment.

As shown in FIG. 1 , the portable electronic device 1 of the present invention includes a connection interface 10 , a switch module 20 and a detection module 30 . The connection interface 10 is set in a battery accommodating slot (not shown) of the portable electronic device 1, and the battery accommodating slot can accommodate a battery module 80, so that when the battery module 80 is installed in the battery accommodating slot, the battery The interface of the module 80 is electrically connected to the connection interface 10 . Since no matter the battery module 80 of the I2C interface or the HDQ interface, 4 contacts are arranged on its interface, which are respectively 1 power contact, 2 signal contacts and 1 ground contact, so the connection interface of the portable electronic device 1 of the present invention 10 is also correspondingly provided with 4 contacts for corresponding electrical connection with each contact of the battery module 80 , but the present invention is not limited thereto.

The switching module 20 is electrically connected to the two contacts of the connection interface 10 through 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 signals from the battery module 80 through the connection interface 10 and The battery signal transmitted by the two lines 21 and 22, wherein the battery signal includes a clock signal and a data signal. The switching module 20 has two sets of switching switches 23, 24, which are respectively set corresponding to the aforementioned two lines 21, 22, so as to switch the corresponding transmission line according to the different interface types of the determined battery module 80.

The detection module 30 is electrically connected to the aforementioned two lines 21 , 22 , so as to detect each line 21 , 22 . By detecting whether the clock signal and data signal transmitted by the aforementioned battery module 80 are transmitted via any one of the two lines 21 and 22 (i.e. the clock signal and the data signal are transmitted via the line 21 or the line 22) or respectively The interface type corresponding to the battery module 80 is determined by transmitting through different lines (that is, the clock signal and the data signal are transmitted through the line 21 and the line 22 respectively).

Due to the different interface types of the battery module 80, the battery signals transmitted through the two lines 21, 22 will also be different. Therefore, by detecting the status of the two lines 21, 22, the interface of the battery module 80 can be identified. type of effect. As far as the battery module 80 of the I2C interface is concerned, the clock signal and the data signal are respectively transmitted through two different contacts, so that the two lines 21 and 22 corresponding to the terminal 1 of the portable electronic device transmit the clock signal and the data signal respectively. The detection module 30 can determine that the current battery module 80 is equipped with an I2C interface. As far as the battery module 80 of the HDQ interface is concerned, its clock signal and data signal are only transmitted through 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 portable electronic device 1 terminal only The clock signal and data signal are transmitted through one of the lines 21 or 22 in the corresponding connection, and the other line only transmits the above-mentioned temperature change signal. At this time, the detection module 30 can judge that it is the battery module 80 equipped with the HDQ interface. The detection module 30 will notify the switching module 20 to switch the corresponding transmission line according to the interface type of the battery module 80 after determining the interface type of the currently electrically connected battery module 80 .

Please refer to FIG. 2 together. FIG. 2 is a signal difference table of the electrical connection between the portable electronic device 1 and the battery module 80 of different interface types of the present invention. In one embodiment of the present invention, the detection module 30 assists in judging whether the clock signal and the data signal are transmitted by the same line or by different lines in the two lines 21, 22 by detecting the signal levels of the lines 21, 22. . Since different signal levels will be generated according to different signals when different signals are transmitted, the detection module 30 detects that the signal levels of each line 21, 22 are at high potential or low potential to determine the signal transmission status of each line 21, 22 , so as to know the interface type of the battery module 80 electrically connected at present.

As shown in Figure 2, when the portable electronic device 1 of the present invention is electrically connected to the battery module 80 of the I2C interface, since the lines 21, 22 are used to transmit the clock signal SCL and the data signal SDA respectively, the lines 21, 22 All will present the state of high potential H; and when the portable electronic device 1 of the present invention is electrically connected with the battery module 80 of the HDQ interface, since only one of the two lines 21 or 22 (assumed to be the line 21) is needed to transmit and combine clock signal and data signal HDQ, this line 21 will present a state of high potential H, and the other line (assumed to be line 22) is only used to transmit the temperature change signal TH, and its signal level will not be too high to make The line 22 assumes a low potential L state.

Accordingly, it is assumed that the switching module 20 is preset to switch to the transmission circuit of the battery module 80 corresponding to the HDQ interface, so the detection module 30 detects that the two lines 21 and 22 are both at low potential or that their respective signal levels are different (that is, a high potential and a low potential), it is determined that the battery module 80 using the HDQ interface or the battery module 80 is not installed at this time, and the switching module 20 maintains the original corresponding circuit state; potential, it is determined that the battery module 80 of the I2C interface is used at this time, so the switching module 20 will switch to the transmission circuit of the battery module 80 corresponding to the I2C interface according to the notification of the detection module 30 . With this design, the switching operation of the corresponding transmission circuit of the switching module 20 can be easily completed through the difference of the signal level.

In an embodiment of the present invention, the detection module 30 also includes a timer 31. In order to prevent improper connection between the battery module 80 and the connection interface 10 or the phenomenon of unstable signals causing misjudgment, the detection module uses the timer 31 to count 30 Whether to continuously detect the signal level for a specific time, if so, use the currently measured signal level as the 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 used to receive the battery signal transmitted by the switching module 20 to confirm the interface type of the battery module 80 currently used, and only after receiving the battery signal, will the system in the device be turned on according to the user's operation command program to avoid situations 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 turned on, and can display the state information corresponding to the current battery module 80 through the display module 50, such as power display and interface type display of the battery module 80. Wait.

Please refer to FIG. 3 , which is a flow chart of the battery module sensing method of the present invention. It should be noted that although the portable electronic device 1 shown in FIG. Portable electronic devices are also suitable. As shown in FIG. 3 , the battery module sensing method of the present invention includes steps S301 to S307 . Each step 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 the corresponding power signal through the power contact and the ground contact of the battery module 80, so by detecting whether the aforementioned power signal is generated, to It is determined whether the portable electronic device 1 is electrically connected to the battery module 80 .

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 transmits it to the switching module 20 electrically. In the two lines 21,22 of sex connection. The battery signal includes a clock signal and a data signal.

Step S303: Detect whether the clock signal and the data signal are transmitted through the same line 21 or 22, so as to determine the interface type of the corresponding battery module 80. As mentioned above, the signal level of the two lines 21, 22 is detected by the detection module 30. When it is detected that the two lines 21, 22 are both at low potentials or at different potentials, it means that the incoming clock signal and data signal are If it is transmitted via any same line 21 or 22, it is determined that the interface type of the battery module 80 is an HDQ interface; The signals are transmitted through different lines 21 and 22 respectively, that is, it is determined that the interface type of the battery module 80 is 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 aforementioned step S303 , the detection module 30 notifies the switching module 20 to switch the corresponding transmission circuit according to the current interface type of the battery module 80 so as to transmit the battery signal to the processing module 40 smoothly.

After step S304, step S305 may also be included: start a system startup program. After the aforementioned step S304, the corresponding transmission line is switched, so that after the processing module 40 receives the battery signal, it indicates that the installation of the power module 80 and the switching of the corresponding circuit have been completed. The module 50 displays the status information of the current battery module 80 .

To sum up, the present invention, regardless of its purpose, means and efficacy, shows its characteristics different from the known technology everywhere, which is a major breakthrough. I urge the review committee to be aware and grant a patent as soon as possible, so as to benefit the society and truly appreciate the convenience. However, it should be noted that the above-mentioned embodiments are only illustrative to illustrate the principles and effects of the present invention, and are not intended to limit the scope of the present invention. Any person skilled in the art can modify and change the embodiments without violating the technical principle and spirit of the present invention. The protection scope of the present invention should be described in the appended claims.

Claims (10)

1. A portable electronic device comprising: a connection interface, the connection interface is used to electrically connect a battery module; A switching module, the switching module is electrically connected to the connection interface through two lines, so as to receive a battery signal transmitted by the battery module through the two lines, wherein the battery signal includes a clock signal and a data signal; and A detection module, the detection module is electrically connected to the two lines respectively, and the detection module distinguishes the battery module by detecting that the clock signal and the data signal are transmitted through the same line or different lines of the two lines interface type of the battery module, and notify the switching module to switch the corresponding transmission line according to the interface type of the battery module, and the interface type includes I2C interface and HDQ interface. 2. The portable electronic device as claimed in claim 1, wherein the interface type of the battery module comprises an inter-integrated circuit interface or a harmonic differential quadrature interface. 3. The portable electronic device as claimed in claim 2, wherein a signal level of each of the two lines is detected by the detection module to determine that the clock signal and the data signal use the same line of the two lines Or transmitted by different lines respectively. 4. The portable electronic device as claimed in claim 3, wherein when the respective signal levels of the two lines are both high potentials, it is judged that the interface type of the battery module is the internal integrated circuit interface; when the respective signal levels of the two lines When the signal levels are different or both are low potential, it is determined that the interface type of the battery module is the harmonic differential quadrature interface. 5. The portable electronic device as claimed in claim 1, further comprising a timer for calculating whether the detection module continues to detect the signal level for a specific time. 6. The portable electronic device according to claim 1, further comprising a processing module and a display module, the processing module is used to receive the battery signal through the switching module, and display the state corresponding to the battery module through the display module information. 7. A battery module sensing method applied to a portable electronic device, the method comprising the following steps: determining whether the portable electronic device is electrically connected to a battery module; If yes, receiving a battery signal transmitted by the battery module, wherein the battery signal includes a clock signal and a data signal; Detecting whether the clock signal and the data signal are transmitted through the same line to determine the interface type of the corresponding battery module, the interface type includes an I2C interface and an HDQ interface; and The corresponding transmission line is switched according to the interface type of the battery module. 8. The method of claim 7, wherein the interface type of the battery module comprises an inter-integrated circuit interface or a harmonic differential quadrature interface. 9. The method of claim 8, wherein whether the clock signal and the data signal are transmitted through the same line is determined by detecting a signal level of each line of the two lines. 10. The method of claim 7, wherein it is calculated whether the detection module continues to detect the signal level for a specific time.