CN202798684U

CN202798684U - Wireless voice transmission device

Info

Publication number: CN202798684U
Application number: CN2012201334913U
Authority: CN
Inventors: 张文军
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-03-31
Filing date: 2012-03-31
Publication date: 2013-03-13
Anticipated expiration: 2022-03-31

Abstract

The utility model discloses a wireless voice transmission device. The wireless voice transmission device comprises an emitting assembly and a receiving assembly which are corresponding to each other. The emitting assembly comprises a voice input module, a voice codec, a one-chip microcomputer, a wireless emission module using the 2.4G digital wireless encryption packet technology and an antenna emitting signals. The components of the emitting assembly are sequentially connected. The receiving assembly comprises an antenna for receiving signals, a wireless receiving module using the 2.4G digital wireless encryption packet technology, a one-chip microcomputer, a voice codec and an earphone for receiving audios. The components of the receiving assembly are also sequentially connected. By adopting the 2.4G digital wireless encryption packet technology, the wireless voice transmission device has higher safety and greater anti-interference capabilities and further enables more stable and longer-distance transmission in the same power condition when compared with one adopting the analog wireless technology. Meanwhile, by adopting a data packet encrypting grouping technology, the wireless voice transmission device prevents interference and crosstalk between different user groups.

Description

A kind of radio speech transmitting device

Technical field

The utility model relates to a kind of radio speech transmitting device, is used at the voice that transmit within the specific limits explanation person.

Background technology

In a lot of scenic spots, the guide uses Portable sound amplifier to explain to the visitor, if the visitor is less at present, also can catch explanation reluctantly, in the face of larger tourism troop, be difficult to allow all visitors catch explanation, probably have influence on visitor's the mood of playing.And this mode allows the quiet comfortable scenic spot of many scripts become noisy such as the downtown area, destroyed the originally environment of harmony of scenic spot.

The utility model content

For the problems referred to above, the utility model aims to provide a kind of radio speech transmitting device, realizes cheaply that in order to stable longer-distance wireless speech transmits.

For realizing this technical purpose, scheme of the present utility model is: a kind of radio speech transmitting device, comprise corresponding emitting module and receiving unit, described emitting module comprises audio frequency input module, audio coder ﹠ decoder (codec), single-chip microcomputer, the wireless transmitter module of 2.4G digital radio encryption group technology and the antenna that transmits that connects successively; Described receiving unit comprises the antenna of the reception signal that connects successively, the earphone that the 2.4G digital radio is encrypted wireless receiving module, single-chip microcomputer, audio coder ﹠ decoder (codec) and the listening to audio of group technology.

The beneficial effects of the utility model are: the guide can explain content to the visitor clearly with crossing radio speech transmitting device, does not need with the aid of a megaphone, has solved the problem of scenic spot noise; What simultaneously radio speech transmitting device adopted is that the 2.4G digital radio is encrypted group technology, has the fail safe higher than artificial antenna technology, and better antijamming capability is arranged, under the same power more stable transfer to farther distance; Adopt simultaneously data packet head to encrypt group technology, avoid between the different user groups interference, crosstalk.

Description of drawings

Fig. 1 is emitting module theory structure block diagram of the present utility model;

Fig. 2 is receiving unit theory structure block diagram of the present utility model.

Embodiment

Below in conjunction with the drawings and specific embodiments the utility model is described in further details.

A kind of radio speech transmitting device of the utility model specific embodiment, comprise corresponding emitting module and receiving unit, described emitting module comprises audio frequency input module, audio coder ﹠ decoder (codec), single-chip microcomputer, the wireless transmitter module of 2.4G digital radio encryption group technology and the antenna that transmits that connects successively, as shown in Figure 1; Described receiving unit comprises the antenna of the reception signal that connects successively, the earphone that the 2.4G digital radio is encrypted wireless receiving module, single-chip microcomputer, audio coder ﹠ decoder (codec) and the listening to audio of group technology, as shown in Figure 2.

Audio decoder plate in the utility model has following functions: the output of microphone phonetic entry, audio signal, loudspeaker raise one's voice put outward, the input of TF card voice document is play, pattern is shown in USB flash disk voice document input broadcast, FM radio reception, LED screen display and played file, infra-red remote control.Wireless transmitter module function: after the Audio Signal Processing with decoding deck input, give on the same group receiver by wireless signal transmission.

The utility model adopts the 2.4G digital radio to encrypt group technology: 20 receivers of per 1 transmitter strap form one group, can allow 100 groups to use simultaneously and do not interfere with each other in the same scope; Every group is used one group of unique enciphered data as the data packet head of wireless transmission, first recognition data packet header before each receiver receive data, the signal of cohort under receiving only, avoid between the different cohorts interference, crosstalk.

The above; it only is preferred embodiment of the present utility model; not in order to limiting the utility model, any trickle modification that every foundation technical spirit of the present utility model is done above embodiment, be equal to and replace and improve, all should be included within the protection range of technical solutions of the utility model.

Claims

1. radio speech transmitting device, comprise corresponding emitting module and receiving unit, it is characterized in that: described emitting module comprises audio frequency input module, audio coder ﹠ decoder (codec), single-chip microcomputer, the wireless transmitter module of 2.4G digital radio encryption group technology and the antenna that transmits that connects successively; Described receiving unit comprises the antenna of the reception signal that connects successively, the earphone that the 2.4G digital radio is encrypted wireless receiving module, single-chip microcomputer, audio coder ﹠ decoder (codec) and the listening to audio of group technology.