TWI432749B - Antenna detection module and electronic device thereof - Google Patents

Description

Antenna detection module and electronic device thereof

The invention relates to an antenna detecting module and an electronic device thereof, in particular to an antenna detecting module capable of detecting whether an antenna module is normally connected and an electronic device thereof.

With the advancement of technology, electronic devices that can transmit signals wirelessly have become more and more popular. Such electronic devices can use the embedded built-in antenna module or the extended external antenna module to achieve wireless transmission. However, in the prior art, whether the antenna module of the electronic device has a correct connection can only be judged by whether the appearance or the antenna module can transmit the signal normally. For the built-in antenna module, since it has been assembled in the electronic device, the housing of the electronic device can only be disassembled to check whether the internal circuit is loose. In the case of the external antenna module, the user may not be able to judge from the appearance that the antenna module is defective due to a connector problem or an operation error.

On the other hand, if the electronic device is shielded or the electronic device is in an environment where there is no wireless signal, the antenna module of the electronic device cannot receive the wireless signal. Therefore, it is impossible to determine whether the line of the antenna module is correctly connected by using whether the signal is normally transmitted. Therefore, in the prior art, when the antenna module cannot transmit the signal normally, the user cannot directly know the line connection status of the antenna module, that is, the simple obstacle elimination cannot be performed, and the electronic device must be disassembled to know. The error is there.

The main object of the present invention is to provide an antenna detecting module, which has the effect of detecting whether the antenna module is normally connected.

Another main object of the present invention is to provide an electronic device having its antenna detecting module.

To achieve the above objective, the antenna detecting module of the present invention comprises an antenna module connecting end, a power input end, a resistive component, a monitoring module, a first output end, a second output end, and a judging module. The antenna module connection end is used for connecting to the antenna module. The power input is used to input a power signal. The resistor element has a first end and a second end. The first end is electrically connected to the power input end, and the second end is electrically connected to the antenna module connection end. The monitoring module is electrically connected to the first end and the second end of the resistive component for monitoring whether there is a voltage difference between the first end and the second end; if yes, outputting a current signal. The first output end is electrically connected to the antenna module connection end for outputting the first high potential signal or the first low potential signal via the antenna module connection end. The second output end is electrically connected to the monitoring module. When the current signal is obtained, the second high potential signal is output; if the current signal is not obtained, the second low potential signal is output. The judging module is electrically connected to the first output end and the second output end. When the first output end and the second output end both output a high potential signal, the judging module judges that the antenna module is correctly connected to the antenna module connection end. When any one of the first output terminal or the second output terminal outputs a low potential signal, the determining module determines that the antenna module is abnormally connected to the antenna module connection end.

The electronic device of the present invention includes an antenna module and an antenna detecting module. The antenna detection module is used to detect whether the antenna module is normally connected. The antenna detection module includes an antenna module connection end, a power input end, a resistance component, a monitoring module, a first output end, a second output end, and a judging module. The antenna module connection end is used for connecting to the antenna module. The power input is used to input a power signal. The resistor element has a first end and a second end. The first end is electrically connected to the power input end, and the second end is electrically connected to the antenna module connection end. The monitoring module is electrically connected to the first end and the second end of the resistive component for monitoring whether there is a voltage difference between the first end and the second end; if yes, outputting a current signal. The first output end is electrically connected to the antenna module connection end for outputting the first high potential signal or the first low potential signal via the antenna module connection end. The second output end is electrically connected to the monitoring module. When the current signal is obtained, the second high potential signal is output; if the current signal is not obtained, the second low potential signal is output. The judging module is electrically connected to the first output end and the second output end. When the first output end and the second output end both output a high potential signal, the judging module judges that the antenna module is correctly connected to the antenna module connection end. When any one of the first output terminal or the second output terminal outputs a low potential signal, the determining module determines that the antenna module is abnormally connected to the antenna module connection end.

The above and other objects, features and advantages of the present invention will become more <

Please refer to FIG. 1 for a circuit architecture diagram of an embodiment of a normal connection of an antenna module in an electronic device of the present invention.

In an embodiment of the present invention, the electronic device 1 can be any device having a function of transmitting a wireless signal, such as a mobile phone, a navigation device, or a tablet computer. The present invention is not limited to the devices listed above. The electronic device 1 includes an antenna detecting module 10, an antenna module 20, and a control module 30. The antenna module 20 is configured to receive and transmit wireless signals and transmit the wireless signals to the control module 30 for processing. For example, the antenna module 20 may be a GPS antenna, but the present invention is not limited thereto. The control module 30 can be constructed by a hardware, a software or a hardware combined with a firmware, for example, can be implemented in a central processing unit, but the invention is not limited thereto. The control module 30 is electrically connected to the antenna module 20 to receive the wireless signals from the antenna module 20 for subsequent processing. Whether the normal connection between the antenna module 20 and the control module 30 is detected by the antenna detecting module 10 is detected.

The antenna detection module 10 includes an antenna module connection end A, a power input terminal V, a resistance component R1, a monitoring module 11, a determination module 12, a first output terminal P1, and a second output terminal P2. In addition, the antenna detecting module 10 may further include a passive component such as a resistive component R2, a capacitive component C, and an inductive component L for use as a voltage regulator or a filter. Since the manner in which the components such as the capacitive element C or the inductive element L are added to the circuit design has been widely used by those skilled in the art and is not the focus of the present invention, the principle will not be described herein.

The antenna module connection end A is used for connecting to the antenna module 20, so that the signal of the antenna can be transmitted to the control module 30. The power input terminal V is electrically connected to a power supply device (not shown) for inputting a power signal, and the power signal is mainly supplied to the antenna module 20. The resistive element R1 has a first end Ra and a second end Rb. The first end Ra is electrically connected to the power input terminal V, and the second end Rb is connected to the antenna module connection end A. In addition, the first end Ra and the second end Rb are also electrically connected to the monitoring module 11 at the same time. The monitoring module 11 is constructed by a hardware or a hardware combined with a firmware, but the invention is not limited thereto.

The monitoring module 11 is configured to monitor whether there is a voltage difference between the first end Ra and the second end Rb, thereby determining whether the antenna module 20 is normally connected. For the detailed operation mode of the monitoring module 11, please refer to FIG. 1A as a circuit architecture diagram of one embodiment of the monitoring module of the present invention.

In an embodiment of the invention, the monitoring module 11 can include a comparator 111 and a switch module 112. The comparator 111 is electrically connected to the first end Ra and the second end Rb to compare the voltage values of the first end Ra and the second end Rb. The switch module 112 is electrically connected to the power input terminal V and the comparator 111. In an embodiment of the present invention, the switch module 112 can be a dual-carrier junction transistor switch, but the invention is not limited thereto. The switch module 112 can have a base 112B, a collector 112C and an emitter 112E. The base 112B is electrically connected to the comparator 111, and the collector 112C is electrically connected to the power input terminal V. When the first terminal Ra and the second terminal Rb have a voltage difference, the comparator 111 outputs a signal to the base 112B to control the switch module 112 to be turned on, so that the power signal of the power input terminal V can be transmitted to the power supply terminal 112C. The emitter 112E is finally output by the emitter 112E. Since the mode of action of the bipolar junction transistor switch has been widely used by those skilled in the art, the principle will not be described herein.

The first output terminal P1 is electrically connected to the antenna module connection end A to output a first high potential signal or a first low potential signal. The second output terminal P2 is electrically connected to the monitoring module 11. When the monitoring module 11 outputs a current signal, the second output terminal P2 outputs a second high potential signal; when the monitoring module 11 does not output a current signal, the first The second output terminal P2 receives the second low potential signal. The judging module 12 can be constructed by using a hardware, a software or a hardware combined with a firmware, for example, in the same central processor as the control module 30, or can be an independent comparison circuit, but the present invention Not limited to this. The determining module 12 is electrically connected to the first output terminal P1 and the second output terminal P2 to determine whether the antenna module 20 is normally connected to the antenna module according to the potential signals of the first output terminal P1 and the second output terminal P2. At the end A, the signal of the normal connection or the abnormal connection is transmitted to the control module 30.

As shown in FIG. 1 , when the antenna module 20 is normally connected to the antenna module connection end A, the power signal input by the power input terminal V is normally transmitted to the antenna module 20 . Therefore, the first output terminal P1 outputs the first high potential signal at this time. At the same time, the first end Ra and the second end Rb of the resistive element R1 also have a voltage difference, so that the switch module 112 in the monitoring module 11 is turned on to generate a current signal. In this way, the second output terminal P2 also outputs a second high potential signal. After the determining module 12 receives the first high potential signal and the second high potential signal, the determining module 12 determines that the antenna module 20 is normally connected to the antenna module connecting end A according to the high potential signal. In this way, the determining module 12 transmits a normally connected signal to the control module 30, so that the control module 30 can perform subsequent processing.

2 is a circuit diagram of an embodiment of a short circuit connection of an antenna module in an electronic device of the present invention.

In this embodiment, the antenna module 20 is a short circuit connection. At this time, the antenna module 20 is directly connected to the ground terminal G. Therefore, the power signal transmitted from the power input terminal V is also simultaneously introduced to the ground terminal G, so that the first output terminal P1 obtains the first low potential signal. At the same time, the second output terminal P2 will still output the second high potential signal. When the determining module 12 receives the first low potential signal and the second high potential signal, the determining module 12 determines that the antenna module 20 is a short circuit connection. Therefore, the determining module 12 transmits the abnormal connection signal to the control module 30, so that the control module 30 can know that an abnormal connection condition occurs between the antenna module 20 and the antenna module connection end A.

Next, please refer to FIG. 3, which is a circuit diagram of an embodiment of an antenna module open connection in an electronic device according to the present invention.

In this embodiment, the antenna module 20 is a disconnected connection. At this time, the antenna module 20 is not connected to the antenna module connection end A. In this way, the first end Ra and the second end Rb of the resistive element R1 are all of the same voltage value, so that the switch module 112 in the monitoring module 11 is not turned on, that is, no current signal is generated. The second output terminal P2 outputs a second low potential signal, and the first output terminal P1 also maintains the first high potential signal. When the determining module 12 receives the first high potential signal and the second low potential signal, the determining module 12 determines that the antenna module 20 is a disconnected connection. Therefore, the determining module 12 transmits the abnormal connection signal to the control module 30, so that the control module 30 can know that an abnormal connection condition occurs between the antenna module 20 and the antenna module connection end A.

In this way, the antenna detecting module 10 can correctly determine the connection state of the antenna module 20, so that the user can know whether the wiring of the antenna module 20 is normal before disassembling the outer casing of the electronic device 1 according to the judgment result. As a basis for follow-up maintenance.

To sum up, the present invention, regardless of its purpose, means and efficacy, shows its distinctive features of the prior art. You are requested to review the examination and express the patent as soon as possible. It should be noted that the various embodiments described above are merely illustrative for ease of explanation, and the scope of the invention is intended to be limited by the scope of the claims.

1. . . Electronic device

10. . . Antenna detection module

11. . . Monitoring module

111. . . Comparators

112. . . Switch module

112B. . . Base

112C. . . Collector

112E. . . Emitter

12. . . Judging module

20. . . Antenna module

30. . . Control module

A. . . Antenna module connection

C. . . Capacitive component

L. . . Inductive component

G. . . Ground terminal

P1. . . First output

P2. . . Second output

R1, R2. . . Resistance element

Ra. . . First end

Rb. . . Second end

V. . . Power input

1 is a circuit diagram of an embodiment of a normal connection of an antenna module in an electronic device of the present invention.

FIG. 1A is a circuit diagram of one embodiment of a monitoring module of the present invention.

2 is a circuit diagram of an embodiment of a short circuit connection of an antenna module in an electronic device of the present invention.

3 is a circuit diagram of an embodiment of an antenna module open connection in an electronic device of the present invention.

1. . . Electronic device

10. . . Antenna detection module

11. . . Monitoring module

12. . . Judging module

20. . . Antenna module

30. . . Control module

A. . . Antenna module connection

C. . . Capacitive component

L. . . Inductive component

G. . . Ground terminal

P1. . . First output

P2. . . Second output

R1, R2. . . Resistance element

Ra. . . First end

Rb. . . Second end

V. . . Power input

Claims (12)

An antenna detection module is used in an electronic device to detect whether an antenna module is correctly connected. The antenna detection module includes: an antenna module connection end for connecting to the antenna module; a power input terminal for inputting a power signal; a resistor component having a first end and a second end, wherein the first end is electrically connected to the power input end, and the second end is coupled to the antenna module The connecting end is electrically connected; an inductive component is electrically connected between the connecting end of the antenna module and the power input end for filtering; a monitoring module is the first of the resistive component The second end is electrically connected to monitor whether there is a voltage difference between the first end and the second end; if yes, a current signal is output; and a first output end is connected to the antenna module The terminal is electrically connected to output a first high potential signal or a first low potential signal through the antenna module connection end; and a second output end is electrically connected to the monitoring module, when the current signal is obtained When outputting a second high potential signal; if not When the current signal is obtained, a second low potential signal is output; and a determining module is electrically connected to the first output end and the second output end, when the first output end and the second output end are both When the high-potential signal is output, the determining module determines that the antenna module is correctly connected to the antenna module connection end; when the first output terminal or the second output terminal outputs a low-potential signal, the determining mode The group determines that the antenna module is abnormally connected to the antenna module connection end. The antenna detecting module of claim 1, wherein when the first output terminal outputs the first low potential signal, the determining module determines that the antenna module and the antenna module are connected to each other. Short circuit connection. The antenna detecting module of claim 1, wherein when the second output terminal outputs the second low potential signal, the determining module determines that the antenna module and the antenna module are connected to each other. Open circuit connection. The antenna detection module of claim 1, wherein the monitoring module comprises: a comparator electrically connected to the first end and the second end of the resistive component to compare the Whether the first end and the second end of the resistive element have the voltage difference; and a switch module electrically connected to the power input end and the comparator, when the first end and the second end have the When the voltage is different, the comparator controls the switch module to be turned on to generate the current signal. The antenna detection module of claim 4, wherein the switch module is a dual-carrier junction transistor switch. The antenna detecting module of claim 1, further comprising a capacitor element. An electronic device includes: an antenna module; and an antenna detecting module for detecting whether the antenna module is normally connected. The antenna detecting module includes: an antenna module connecting end for connecting In the antenna module; a power input end for inputting a power signal; a resistive element having a first end and a second end, the first end Electrically connected to the power input end, the second end is electrically connected to the antenna module connection end; an inductive component is electrically connected between the antenna module connection end and the power input end, as For monitoring, a monitoring module is electrically connected to the first end and the second end of the resistive element for monitoring whether there is a voltage difference between the first end and the second end; if yes, Outputting a current signal; a first output end is electrically connected to the antenna module connection end for outputting a first high potential signal or a first low potential signal through the antenna module connection end; The output end is electrically connected to the monitoring module, and when the current signal is obtained, a second high potential signal is output; if the current signal is not obtained, a second low potential signal is output; The group is electrically connected to the first output end and the second output end. When the first output end and the second output end both output a high potential signal, the determining module determines that the antenna module is correctly connected to the antenna module. The antenna module connection end; when the first When the end or the end of either a second output terminal outputting a low potential signal, the determining module determines that the system abnormality antenna module connected to the antenna connection terminal module. The electronic device of claim 7, wherein the determining module determines the antenna when the first output terminal outputs the first low potential signal and the second output terminal outputs the second high potential signal The connection between the module and the antenna module is a short circuit connection. The electronic device of claim 7, wherein the first output terminal outputs the first high potential signal and the second output terminal outputs the second In the case of a low potential signal, the determining module determines that the connection between the antenna module and the antenna module is an open circuit connection. The electronic device of claim 7, wherein the monitoring module comprises: a comparator electrically connected to the first end and the second end of the resistive element to compare the resistive element Whether the first end and the second end have the voltage difference; and a switch module electrically connected to the power input end and the comparator, when the first end and the second end have the voltage difference The comparator controls the switch module to be turned on to generate the current signal. The electronic device of claim 10, wherein the switch module is a dual-carrier junction transistor switch. The electronic device of claim 7, wherein the antenna detecting module further comprises a capacitive element.