CN207588972U - A kind of hands-free message equipment - Google Patents
A kind of hands-free message equipment Download PDFInfo
- Publication number
- CN207588972U CN207588972U CN201721757365.4U CN201721757365U CN207588972U CN 207588972 U CN207588972 U CN 207588972U CN 201721757365 U CN201721757365 U CN 201721757365U CN 207588972 U CN207588972 U CN 207588972U
- Authority
- CN
- China
- Prior art keywords
- mike
- circuit
- driving circuit
- audio amplifier
- hands
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
A kind of hands-free message equipment：Mike accesses Mike's driving circuit, Mike's driving circuit connects main station, main station connects loud speaker by audio amplifier circuit, Mike's driving circuit, audio amplifier circuit all have independent power circuit, the power circuit of Mike's driving circuit and audio amplifier circuit is all controlled by MCU, and main station is all connected with button with MCU.The utility model realizes the hand-free call when train signal is noisy, effectively shields external signal interference, improves speech quality.
Description
Technical field
The utility model is related to railway communication fields, and in particular to a kind of hands-free message equipment.
Background technology
Current railroad train vehicle mounted call device is conversed for handle, and operating personnel is needed to pick up talking handle and are led to
Words, influence the normal driving of driver；Handle In Call is small simultaneously, and communication effect is poor under locomotive environment.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of hands-free message equipment.
The technical solution of the utility model is specially：
A kind of hands-free message equipment：Mike accesses Mike's driving circuit, Mike's driving circuit connection main station, phone master
Machine connects loud speaker by audio amplifier circuit, and Mike's driving circuit, audio amplifier circuit all have independent power circuit, wheat
The power circuit of gram driving circuit and audio amplifier circuit is all controlled by MCU, and main station is all connected with button with MCU.
Further：Mike's driving circuit power supply and audio amplifier circuit power supply are all powered using isolated power supply.
Further：Between Mike's driving circuit and main station and Mike and audio amplifier circuit and main station and
It is all connected between loud speaker using interface.
Further：Mike's driving circuit, audio amplifier circuit, MCU are mounted in screening housing, and screening housing has outer
If interface.
Further：The Peripheral Interface includes power interface, external microphone interface, audio input/output and control
Interface.
Relative to the prior art, the technique effect of the utility model be realize it is hands-free logical when train signal is noisy
Words effectively shield external signal interference, improve speech quality.
Description of the drawings
Fig. 1 is the schematic diagram of the utility model.
Specific embodiment
Such as Fig. 1, a kind of hands-free message equipment Mike accesses Mike's driving circuit, and Mike is drivingly connected main station, phone
Host connects loud speaker by audio amplifier circuit, and Mike's driving circuit, audio amplifier circuit all have independent power circuit,
The power circuit of Mike's driving circuit and audio amplifier circuit is all controlled by MCU, and main station and button all connect with MCU
It connects.
Microcontroller（MCU）Detect button operation, when push button for【This section 1】Or【This section 2】When, equipment can be to phone
Host sends corresponding key value, initiates to call by main station；After end of conversation, press【It hangs up】Key, to Mike's driving and sound
IF amplifier circuit powers off；
When ground calling device, main station can send out bell signal, and equipment carries out ringring prompting；It presses【It connects】Key
When, by MCU opening Mike's driving circuits and the power supply of audio amplifier circuit, both sides converse；After end of conversation, press【It hangs
It is disconnected】Key powers off Mike's driving and power amplifier circuit.
Mike's driving circuit and audio amplifier circuit are powered using the power supply of two-way independence, eliminate Mike's driving circuit and
Interfering with each other between audio amplifier circuit improves the power supply quality of circuit, effectively raises speech quality.
Mike's driving circuit power supply and audio amplifier circuit power supply are all powered using isolated power supply, not only eliminate wheat in this way
Gram interfering with each other between driving circuit and audio amplifier circuit, also avoids interference of the electrical locomotive power to entire voicefrequency circuit.
Between Mike's driving circuit and main station and Mike and audio amplifier circuit and main station and loud speaker it
Between all connected using interface, the interchangeability of whole equipment is improved using interface connection, in Mike or speaker damage
It is conveniently replaceable the original paper of damage.
Hands-free talking device Mike driving circuit, audio amplifier circuit, MCU are mounted in screening housing, screening housing
Connected by power interface, external microphone interface, audio input/output and control interface and Mike, loud speaker and main station
It connects, the presence of screening housing effectively shields interference of the external noise signal to voicefrequency circuit, makes call relatively sharp, call
Signal stablizes noiseless interference.
Above-described is only the preferred embodiment of the utility model, it is noted that for those skilled in the art
For, under the premise of the utility model general idea is not departed from, several changes and improvements can also be made, these should also be considered as
The scope of protection of the utility model.
Claims (5)
1. a kind of hands-free message equipment, it is characterised in that：Mike accesses Mike's driving circuit, Mike's driving circuit connection phone master
Machine, main station connect loud speaker by audio amplifier circuit, and Mike's driving circuit, audio amplifier circuit all have independent electricity
The power circuit of source circuit, Mike's driving circuit and audio amplifier circuit is all controlled by MCU, main station and button all and
MCU connections.
2. a kind of hands-free message equipment as described in claim 1, it is characterised in that：Mike's driving circuit power supply and audio amplification
Circuit power is all powered using isolated power supply.
3. a kind of hands-free message equipment as described in claim 1, it is characterised in that：Mike's driving circuit and main station and wheat
It is all connected between gram and between audio amplifier circuit and main station and loud speaker using interface.
4. a kind of hands-free message equipment as described in claim 1, it is characterised in that：Mike's driving circuit, audio amplifier circuit,
MCU is mounted in screening housing, and screening housing has Peripheral Interface.
5. a kind of hands-free message equipment as claimed in claim 4, it is characterised in that：The Peripheral Interface connects including power supply
Mouth, external microphone interface, audio input/output and control interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721757365.4U CN207588972U (en) | 2017-12-15 | 2017-12-15 | A kind of hands-free message equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721757365.4U CN207588972U (en) | 2017-12-15 | 2017-12-15 | A kind of hands-free message equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207588972U true CN207588972U (en) | 2018-07-06 |
Family
ID=62738260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721757365.4U Active CN207588972U (en) | 2017-12-15 | 2017-12-15 | A kind of hands-free message equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207588972U (en) |
-
2017
- 2017-12-15 CN CN201721757365.4U patent/CN207588972U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104853282A (en) | Intelligent wearable device having bone conduction function, and audio output processing method | |
| CN204180064U (en) | High noise environments intercom | |
| CN203632825U (en) | Multifunctional bluetooth sound box | |
| CN209642920U (en) | Environment sensing noise reduction in-ear typed Bluetooth headset | |
| CN207588972U (en) | A kind of hands-free message equipment | |
| CN107343235A (en) | It is a kind of can plug earphone cord active noise reduction earphone | |
| CN106303761A (en) | A kind of window talkback system and intercommunication method | |
| CN101437183B (en) | Earplug type bone conduction receiver-transmitter | |
| CN207150781U (en) | A kind of active noise reduction earphone of pluggable earphone line | |
| CN201878142U (en) | Wireless Bluetooth interphone for motorcycle | |
| CN101360155A (en) | Active noise silencing control system | |
| CN206879036U (en) | Double miaow head stereophony microphones | |
| CN209517457U (en) | A kind of noise cancelling headphone of adjustable sound | |
| CN205283527U (en) | Words system that receives that send of quick -witted bluetooth of arranging that half -duplex is wireless | |
| CN204578731U (en) | A kind of comfort type high-fidelity tonequality earphone | |
| CN205249464U (en) | Integrated furred ceiling sound system | |
| CN204578730U (en) | A kind of environment-friendly type high-fidelity tonequality earphone | |
| CN203574729U (en) | Teleconference coupler | |
| CN208509219U (en) | One kind being based on Radio Transmission Technology intelligence active noise reduction earphone | |
| CN206728296U (en) | Portable stereo loudspeaker | |
| CN203086672U (en) | Line control earphone | |
| CN201303357Y (en) | Earplug-type bone conduction receiver-transmitter | |
| CN216414295U (en) | Intercom control circuit | |
| CN201300785Y (en) | Electric vehicle provided with hand-free talking function | |
| CN207783091U (en) | One kind is based on wireless communication acoustic control earphone |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |