Fixed telephone terminal emergency call ringing system and method

A terminal and incoming call technology, applied in the field of communication, can solve problems such as missing phone numbers

Active Publication Date: 2020-03-13

成都旺小宝科技有限公司

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AI-Extracted Technical Summary

Problems solved by technology

[0006] When a call comes in, if the ringing signal has been answered before the previous number signal appears, ...

Method used

[0042] As preferably, the communication module is a uart communication module. The communication module can use a proprietary communication protocol to enable the MCU to communicate with the main board of the system to improve security....

Abstract

The invention discloses a fixed telephone terminal emergency call ringing system and method. The system comprises a display module, a loudspeaker, and a ringing oscillation signal generation module and a coupling circuit which are connected with each other; the system also comprises a rectification circuit, an MCU, and a system mainboard. The MCU comprises a communication module, a decoding moduleand a signal conversion module, wherein the decoding module and the signal conversion module are connected with the communication module. According to the invention, the MCU is adopted to decode andconvert the incoming call number signal and the ringing signal, and the system mainboard only drives the display module and the loudspeaker when the incoming call number signal and the ringing signalexist at the same time, so that the problem that the ringing signal answers a call when the previous number signal does not exist and thus the phone number is lost is solved.

Application Domain

Current supply arrangementsCalling susbscriber number recording/indication +1

Technology Topic

Embedded systemLoudspeaker +4

Image

Examples

Experimental program(2)

Example Embodiment

[0039] Example 1

[0040] Such as figure 1 As shown, a fixed-line terminal emergency call ringing system provided in this embodiment includes a display module, a speaker, and a connected ringing and oscillating signal generating module and a coupling circuit; the ringing and oscillating signal generating module generates ringing The oscillating signal is stepped down by the coupling circuit; it is characterized in that it further includes: a rectifier circuit, an MCU, and a system motherboard; the MCU includes a communication module and a decoding module and a signal conversion module connected to the communication module; the decoding module is used for decoding The ptsn signal is used to obtain the caller number signal; the rectifier circuit is used to rectify the ringing oscillating signal after the coupling circuit is stepped down to obtain a ringing square wave signal; the signal conversion module is used to convert the ringing square wave signal into a ringing square wave signal Ringing digital signal; the MCU transmits the incoming call number signal and the ringing square wave signal to the system main board via the communication module; the system mainboard sends the incoming call number signal and the ringing square wave signal to the display module within a preset time threshold And the speaker sends a driving signal for caller ID display and ringing. The preset time threshold can generally be set to 6s.

[0041] Preferably, the system motherboard is an Android system motherboard. The Android system motherboard is a common system motherboard, in fact, other system motherboards can also be used.

[0042] Preferably, the communication module is a uart communication module. The communication module can use a proprietary communication protocol to enable the MCU to communicate with the system mainboard to improve safety.

[0043] Preferably, the rectifier circuit is a bridge rectifier circuit, such as a commonly used half-bridge rectifier circuit, full-bridge rectifier circuit, and the like.

Example Embodiment

[0044] Example 2

[0045] Such as figure 2 As shown, the method for urgent incoming call ringing of a fixed-line terminal provided in this embodiment includes:

[0046] Incoming calls from fixed-line terminals;

[0047] The decoding module decodes the ptsn signal to obtain the caller number signal;

[0048] The ringing and oscillating signal generation module generates a ringing and oscillating signal;

[0049] The coupling circuit reduces the voltage of the ringing oscillating signal;

[0050] The rectifier circuit rectifies the ringing oscillating signal after the voltage drop to obtain a ringing square wave signal;

[0051] The signal conversion module converts the ringing square wave signal into a ringing digital signal;

[0052] The communication module transmits the incoming call number signal and ringing square wave signal to the system main board;

[0053] The system main board judges whether to receive the incoming call number signal and the ringing square wave signal within the preset time threshold; when the incoming call number signal and the ringing square wave signal are received within the preset time threshold, the system main board sends to the display module and the speaker Drive signal for caller ID and ringing. The preset time threshold can generally be set to 6s.

[0054] Preferably, the system motherboard is an Android system motherboard. The Android system motherboard is a common system motherboard, in fact, other system motherboards can also be used.

[0055] Preferably, the communication module is a uart communication module. The communication module can use a proprietary communication protocol to enable the MCU to communicate with the system mainboard to improve safety.

[0056] Preferably, the rectifier circuit is a bridge rectifier circuit, such as a commonly used half-bridge rectifier circuit, full-bridge rectifier circuit, and the like.

PUM

Description & Claims & Application Information

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