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Bluetooth PTT talkback system

An intercom system and Bluetooth technology, applied in broadcasting service distribution and other directions, can solve problems such as large differences in shape and structure, and different calling methods, so as to meet professional requirements, meet professional requirements, and reduce costs.

Inactive Publication Date: 2014-07-23
成都达信通科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 3. Different calling methods
[0009] 5. The shape and structure are quite different
Moreover, after China Mobile and China Unicom respectively launch PTT services on their GPRS and CDMA networks in the future, there will be technical difficulties in the intercommunication between different systems of the two operators.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] refer to figure 1 . In the best embodiment described below, the system model that supports the general bluetooth device with the PTT key to be linked with the mobile terminal and provides the intercom function includes the bluetooth PTT intercom system and the mobile terminal in turn; wherein the bluetooth PTT intercom The system includes a bluetooth module and a push-to-talk PTT key defined on the peripheral equipment of the bluetooth module, a loudspeaker and a headset mic interface. In the Bluetooth PTT intercom system, the Bluetooth module is connected to the push-to-talk PTT button through the I / O port, and the Bluetooth module is connected to the audio output module and the audio input module through the PCM interface.

[0035] After the bluetooth module obtains the PTT key through the I / O port and is manually triggered by the user, the bluetooth module sends the information that the PTT key is triggered to the mobile terminal through the wireless bluetooth signa...

Embodiment 2

[0047] refer to figure 2 . exist figure 2 In the shown embodiment, according to Embodiment 1, the audio output module is electrically connected to the PCM interface of the Bluetooth module and the volume adjustment key through the power amplifier module. The volume adjustment key is connected to the peripheral control circuit of the power amplifier module. The volume adjustment key is used to adjust the multiple of the power amplification, which can meet the needs of the user to adjust the volume. Since the trunking intercom terminal needs to face a noisy environment in actual use, the volume is a very important indicator in the application of the trunking intercom terminal. In this embodiment, the bluetooth module and the audio output module are electrically connected to the power amplifier module, and the power amplification is used to increase the audio output power of the bluetooth device with the PTT key, so as to meet the requirements of cluster intercom with clear ...

Embodiment 3

[0049] refer to image 3 . exist image 3 In the illustrated embodiment, in order to enable the trunking intercom terminal to display group information during actual use, the user can know the name information of the currently calling group. According to Embodiment 1, an information display module is also connected to the central controller MCU of the Bluetooth module, and the information display module receives and displays data wirelessly transmitted by the mobile terminal through the MCU. Due to the cluster intercom application, a person can belong to multiple PTT groups. In order to make the user more aware of the group he belongs to when he is currently calling, it is necessary to provide group display information on the Bluetooth device.

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Abstract

The invention discloses a bluetooth PTT talkback system which comprises a bluetooth module device provided with a bluetooth headset mic interface and a loudspeaker, wherein a PTT key is arranged on the bluetooth module device and electrically connected with an I / O port with built-in bluetooth module of the bluetooth module device and the bluetooth module is connected with an audio input module and an audio output module through a pulse code modulation (PCM) interface. The audio input module is connected with the headset mic interface through a bluetooth module audio input circuit, and the audio output module is connected with the loudspeaker through a bluetooth module audio output circuit. By means of the bluetooth PTT talkback system, PTT talkback and professional cluster talkback functions of any mobile terminal with bluetooth can be achieved quickly, and requirements on functions of professional applications such as the PTT key and volume during application of a public network talkback mobile terminal in cluster talkback service are met. Customization requirements on adaption to characteristics of an interphone of mobile phones utilizing a public mobile data network currently to provide a talkback function can be removed, and cost on research of public network intercommunication phones is greatly reduced.

Description

technical field [0001] The invention relates to a device for triggering a one-button group communication intercom function on a bluetooth device. In particular, it relates to a method suitable for military police / security, taxi / logistics, scenery / tourism, including: prisons, medical first aid, flood prevention, earthquake prevention, air defense, fire emergency, public security transportation, urban management and law enforcement, taxis, aviation, navigation, highways, railways , National Security, Electric Power, Petroleum, Coal, Fire Protection, First Aid, Flood Control, Forest Protection, Fire Prevention, Tourism, etc., based on wireless network cluster communication services, group communication between user groups is realized through wireless handheld smart terminals, and users only need to press a button Initiate a call to an individual or a group, without dialing and waiting for the other party to pick up the integrated communication mode, realize the PTT key equipped o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/10
Inventor 朱雄关刘晓岩
Owner 成都达信通科技有限公司
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