CN203014948U

CN203014948U - Wireless telephone applying common telephone set

Info

Publication number: CN203014948U
Application number: CN 201320015549
Authority: CN
Inventors: 田海霞
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-01-09
Filing date: 2013-01-09
Publication date: 2013-06-19
Anticipated expiration: 2023-01-09

Abstract

The utility model relates to a wireless telephone applying a common telephone set, and belongs to the field of wireless communication. According to the utility model, signals of the common telephone set are adapted to signals which can be used by GSM module adaptation, thereby achieving the purpose of dialing a mobile phone voluntarily by using the common telephone set.

Description

A kind of radio telephone that uses ordinary telephone set

Technical field

The utility model relates to a kind of radio telephone box that can use ordinary telephone set, refers in particular to adopt gsm module to connect ordinary telephone set to complete the radio telephone box of wireless communication.

Background technology

At present, known wireless telephonic profile is all the mobile phone profile, and keyboard is little and antenna for mobile phone is near apart from brain, easily the people is caused radiation, is not suitable for people older and that have defective vision and uses.Although wireless public telephone profile and common telephone type are seemingly, just need whole maintenance if damage, increased maintenance cost.

Summary of the invention

For in order to allow the user dial easily radio telephone, the utility model provides a kind of novel radio telephone box, the built-in common gsm module of this system, the outside can connect common fixed telephone, thereby reaches the function of eliminating mobile phone radiation and facilitating subscriber dialing.

the technical scheme that its technical problem that solves the utility model adopts is: make the needed feed of ordinary telephone set work and various signal in box, provide simultaneously the gsm module status signal to the conversion control circuit of telephone set signal and the change-over circuit of audio signal, specifically comprise voicefrequency circuit (conversion of the voice signal that the speech that is used for completing the Z interface can be supported with gsm module), dialing tone circuit for generating (being used for to Z interface transmitted signal sound), busy tone circuit for generating (being used for providing busy tone to the Z interface), picking/hanging machine detection circuit off-hook and the on-hook of monitor user ' (be used for), DTMF identification circuit (being used for identifying user's dialing).

The novel core of this use is a MCU, and by serial communication, gsm module needs an external SIM card interface to MCU with gsm module.The Z interface driving circuit is used for connecting user's ordinary telephone set.

The beneficial effects of the utility model are, the control of and MCU adaptive by circuit, completed plain old telephone and be connected connection with gsm module, simulated the overall process that the user converses by plain old telephone fully, the user can complete wireless calling by this Telephone connector with ordinary telephone set.

Description of drawings

Below in conjunction with drawings and Examples, the utility model is further illustrated.

Fig. 1 is module frame chart of the present utility model.

In figure: 1, microprocessor, 2, dialing tone circuit for generating, 3, the busy tone circuit for generating, 4, the ringing-current circuit for generating, 5, picking/hanging machine detection circuit, 6, DTMF testing circuit, 7, power supply and clock, 8, gsm module, 9, audio conversion circuit, 10, Z interface driving circuit, 11, the SIM card interface, 12, external ordinary telephone set.

In Fig. 1: when the user need to call, user's off-hook, (5) off-hook information is reported to (1), then (1) startup (2) is sent dialing tone to the user, the user can begin dialing, in case the user has dialed a telephone number, (6) will listen to, then report to (1), (1) is controlled (2) and is stopped playing dialing tone.Each number that the user dials can be detected and pass to (1) by (6), in case user's certain interval of time (for example 15 seconds) does not have dialing numbers or has pressed the # key, illustrate that the number input is complete, then (1) gives (8) with number by serial ports, and (8) dial away this phone.(8) SIM card that utilization is placed in (11) is used as caller information.If it is legal to dial the other side's number, (8) can know current just in ring, so by serial ports, (1) is issued in the ring indication, the audio frequency of (8) output simultaneously will have signal, audio signal is by adaptive being delivered to (10) of (9), so the user just can hear ring-back tone.If called answering, (8) can continue the output voice signal, and through being delivered to (8) after adaptive, the processing through (8) passes speech by gsm protocol simultaneously.If user's communication finishes on-hook, notice (1) after (5) detect, (1) notifies (8) to hang up the telephone immediately.

In Fig. 1: when other user dials the machine, (8) at first can acquired information, so notify (1) by serial ports, (1) start immediately (4), (4) work by (10), substation (12) is just with ring, and the user picks up a receiver, (5) user's off-hook detected, notice (1) is closed ringing-current.The user passes to (9) by the sound of microphone by (10), is then sent by (8), and calling subscriber's sound also can be delivered to (10) through (9) by (8), is delivered to the receiver of (12).If user's communication finishes on-hook, notice (1) after (5) detect, (1) notifies (8) to hang up the telephone immediately.

Claims

1. a radio telephone that uses ordinary telephone set, is characterized in that it utilizes a gsm module and peripheral circuit thereof to connect common telephone set to complete conversation;

Described peripheral circuit comprises: microprocessor, dialing tone circuit for generating, busy tone circuit for generating, ringing-current circuit for generating, picking/hanging machine detection circuit, DTMF testing circuit, power supply and clock, audio conversion circuit, Z interface driving circuit, SIM card interface.

2. a kind of radio telephone that uses ordinary telephone set as claimed in claim 1, is characterized in that microprocessor is with adopting serial ports to carry out communication between gsm module.