CN212543775U

CN212543775U - Wireless conference system for large-scale meeting place

Info

Publication number: CN212543775U
Application number: CN202021483380.6U
Authority: CN
Inventors: 何敏; 吴东亮; 孙运
Original assignee: Fiontu Intelligent Shenzhen Technology Group Co ltd
Current assignee: Fiontu Intelligent Shenzhen Technology Group Co ltd
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2021-02-12
Anticipated expiration: 2030-07-24

Abstract

A wireless conferencing system for large scale meeting rooms, comprising: the system comprises a host, at least one antenna and a conference unit, wherein the at least one antenna is connected with the host through a circuit to perform signal transmission, and the at least one conference unit is communicated with the antenna in a wireless mode. The beneficial effects of the utility model reside in that, use a host computer and many antennas centralized control's structure, the antenna distributes in each region in meeting place, and every antenna control corresponds the meeting unit to realize that every regional homoenergetic in large-scale meeting place normally speaks, the problem that sound is intermittent, can't speak in the large-scale meeting place of effectual solution.

Description

Wireless conference system for large-scale meeting place

Technical Field

The utility model belongs to conference system field, concretely relates to a control method that is used for wireless conference system and conference system in large-scale meeting place.

Background

The fast pace of modern society work makes the amount of information that people possess and contact in daily life and work bigger and bigger, and information exchange and communication are more and more frequent and more important. In government administration, business negotiation, guest interviews, product demonstration and the like, a method consistently used for achieving a better purpose is a 'meeting'. With the development of the scientific and technological era, the importance of the conference system is more and more prominent.

The wireless conference system has the advantages of no wiring, real-time change according to the layout of the conference place, no damage to the original decoration of the conference place, easy maintenance and the like. However, the conventional wireless conference system is limited by the transmission distance. When the voice announcement device is used in a large meeting place, the phenomena of discontinuous transmission voice, no speaking and the like occur.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the voice appears discontinuously and can not speak due to the limitation of the transmission distance in the large-scale meeting place, the utility model provides a wireless conference system and a conference system control method for the large-scale meeting place.

The technical scheme of the utility model as follows:

a wireless conferencing system for large scale meeting rooms, comprising: the conference system comprises a host, at least one antenna and a conference unit, wherein the antenna is connected with the host through a circuit to perform signal transmission, and the conference unit is communicated with the antenna in a wireless mode and is connected with the host through a circuit to form an audio output unit.

Optionally, the host includes: the first MCU module is respectively electrically connected with the first key module, the liquid crystal display module, the first conversion module and the first power supply control module, and the first conversion module, the first power supply control module and the first audio processing module are connected with an antenna through circuits.

Optionally, the antenna comprises: the second MCU module is respectively and electrically connected with the first wireless module, the second conversion module, the dial switch and the second power supply control module, the second MCU module is also electrically connected with at least one UHF receiving module, the other end of the UHF receiving module is electrically connected with the second audio processing module, and the second conversion module, the second power supply control module and the second audio processing module are connected with a host through circuits.

Optionally, the conference unit comprises: the third MCU module is respectively and electrically connected with the UHF transmitting module, the second wireless module, the third power supply control module, the third audio processing module, the second key module and the LED module, the third audio processing module is respectively and electrically connected with the UHF transmitting module and the microphone, the third power supply control module is also and electrically connected with the battery, the UHF transmitting module is in UHF communication with the UHF receiving module, and the second wireless module is in wireless communication with the first wireless module.

The beneficial effects of the utility model reside in that, use a host computer and many antennas centralized control's structure, the antenna distributes in each region in meeting place, and every antenna control corresponds the meeting unit to realize that every regional homoenergetic in large-scale meeting place normally speaks, the problem that sound is intermittent, can't speak in the large-scale meeting place of effectual solution.

Drawings

Fig. 1 is a block diagram of the conference system of the present invention;

FIG. 2 is a block diagram of the host structure of the present invention;

fig. 3 is a block diagram of the antenna structure of the present invention;

fig. 4 is a block diagram of the conference unit structure of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1, a wireless conference system for a large conference place includes: host computer 100, antenna 200, conference unit 300 and audio output unit, at least one antenna 200 through the circuit with host computer 100 connects and carries out signal transmission, at least one conference unit 300 with antenna 200 passes through wireless mode communication, audio output unit with host computer 100 is used for playing the audio frequency after the host computer is handled through the line connection.

As shown in fig. 2, the host 100 includes: the device comprises a first MCU module 11, a first key module 12, a liquid crystal display module 13, a first conversion module 14, a first power control module 15 and a first audio processing module 16. The first MCU module 11 is electrically connected to the first key module 12, the lcd display module 13, the first conversion module 14, and the first power control module 15, respectively, and the first conversion module 14, the first power control module 15, and the first audio processing module 16 are connected to the antenna 200 through a circuit.

The circuit comprises but is not limited to a six-core wire, and the six-core wire comprises a power wire, a ground wire, a differential RS485 signal wire and a differential audio signal wire.

In this embodiment, the first MCU module 11 is connected to the lcd display module 13 and the first key module 12 through the FSMC interface, the first MCU module 11 is connected to the first conversion module 14 through the UART interface, the first audio processing module 16 is connected to the differential audio signal line in the six-core wire, the first power control module 15 is connected to the power line and the ground line in the six-core wire, and the first conversion module 14 is connected to the differential RS485 signal line in the six-core wire. The host 100 can operate the display interface of the lcd display module 13 through the first key module 12. The first conversion module 14 includes, but is not limited to, a 232 to 485 conversion module, and is configured to convert the serial port signal of the first MCU module 11 into a 485 signal, and transmit the 485 signal to the antenna 200 through a circuit. The first power control module 15 converts the 220V mains voltage into 24V, and supplies the 24V mains voltage to the antenna 200 through the circuit, and also supplies the voltage required by the first MCU module 11 and each module. The first audio processing module 16 is configured to receive the differential audio signal through the line, shape and amplify the differential audio signal, and output the shaped and amplified differential audio signal as an audio signal, which may be directly connected to a power amplifier.

As shown in fig. 3, the antenna 200 includes: a second MCU module 21, a first wireless module 22, a UHF receiving module 23, a second audio processing module 24, a second conversion module 25, a dial switch 26 and a second power control module 27. The second MCU module 21 is electrically connected to the first wireless module 22, the second conversion module 25, the dial switch 26, and the second power control module 27, the second MCU module 21 is further electrically connected to at least one UHF receiver module 23, the other end of the UHF receiver module 23 is electrically connected to the second audio processing module 24, and the second conversion module 25, the second power control module 27, and the second audio processing module 24 are connected to the host 100 through a circuit.

In this embodiment, the second MCU module 21 is connected to the first wireless module 22 through an SPI interface for transmitting digital signals. The second MCU module 21 is connected to the UHF receiver module 23 through an I2C interface, and is configured to receive the audio signal transmitted by the conference unit 300. The second audio processing module 24 is configured to perform audio mixing processing on the audio signal received by the UHF receiving module 23, and transmit the audio signal to the host 100 through a differential audio line in the six-core line. The second conversion module 25 includes, but is not limited to, a 232 to 485 conversion module, and is configured to convert the serial port signal of the second MCU module 21 into a 485 signal, and transmit the 485 signal to the host 100 through a differential RS485 signal line in a six-core line. The dial switch 26 is used to set the antenna number. The second power control module 27 is configured to convert the 24V voltage provided by the power line and the ground line in the six-core line to the second MCU module 21 and the voltages required by the modules.

As shown in fig. 4, the conference unit 300 includes: a third MCU module 31, a UHF transmission module 32, a second wireless module 33, a third power control module 34, a third audio processing module 35, a battery 36, a microphone 37, a second key module 38 and an LED module 39. The third MCU module 31 is electrically connected to the UHF transmitter module 32, the second wireless module 33, the third power control module 34, the third audio processing module 35, the second key module 38, and the LED module 39, the third audio processing module 35 is also electrically connected to the UHF transmitter module 32 and the microphone 37, and the third power control module 34 is also electrically connected to the battery 36. The UHF transmission module 32 communicates with the UHF reception module 23 through UHF, and the second wireless module 33 communicates with the first wireless module 22 through wireless.

In this embodiment, the third MCU module 31 is connected to the UHF transmission module 32 through an I2C interface for transmitting the audio signal of the conference unit 300, and the UHF transmission module 32 and the UHF reception module 23 transmit the audio signal of the conference unit 300 to the antenna 200 through UHF communication. The third MCU 31 is connected to the second wireless module 33 through the SPI interface for transmitting digital signals, and the second wireless module 33 and the first wireless module 22 wirelessly communicate with each other to transmit the digital signals of the conference unit 300 to the antenna 200. The third power control module 34 converts the voltage provided by the battery 36 into the voltage required by the third MCU module 31 and the modules. The third audio processing module 35, on one hand, shapes the sound output by the microphone 37 and outputs the shaped sound to the UHF transmission module 32, and on the other hand, provides the shaped sound to the third MCU module 31 for threshold detection in the voice control mode of the conference unit 300.

The main machine 100 is used as a main control part to complete the interaction process of the conference unit 300 in the whole system, each antenna 200 extracts a signal instruction belonging to itself according to the antenna number of itself, forwards the conference unit 300 through a wireless signal, receives a wireless signal only belonging to itself according to the antenna number, transmits the wireless signal to the main machine 100 through a line, and is analyzed and processed uniformly by the main machine 100.

The frequency setting performed by the conference unit 300 specifically includes: the host 100 searches the belonging antenna 200 according to the conference unit, and queries an unused UHF channel of the antenna 200 to determine an unused UHF frequency, the host 100 generates a speech instruction according to the antenna number, the UHF channel number and the unused UHF frequency and sends the speech instruction to the antenna 200, the antenna 200 receives the speech instruction and sets the corresponding UHF channel to an assigned frequency which is the same as the unused UHF frequency, the antenna 200 forwards the speech instruction to the conference unit 300, and the conference unit 300 also sets the UHF channel to the assigned frequency which is the same as the unused UHF frequency after receiving the speech instruction, so that the UHF communication can be completed.

On speech, the host 100 and the antenna 200 transmit audio signals through the differential audio line in the six-core line, and the antenna 200 and the conference unit 300 transmit audio signals through UHF. When the audio signal is transmitted by the UHF, it is necessary that the UHF transmission module of the conference unit 300 and the UHF reception module 23 of the antenna 200 are located at the same frequency point. For example, the whole system allows up to 5 conference units 300 to speak simultaneously, and therefore, a total of 5 different frequency points are required. Each antenna 200 has a plurality of UHF receiver modules 23. The selected frequency is a frequency at which one UHF transmitter module in the antenna 200 corresponding to the conference unit 300 is set to the same frequency as the UHF receiver module 23 of the conference unit 300 when speaking. The UHF channel is the communication relationship between the UHF transmission module and the UHF reception module 23.

Claims

1. A wireless conferencing system for use in a large venue, comprising: the conference system comprises a host (100), antennas (200) and conference units (300), wherein at least one antenna (200) is connected with the host (100) through a line for signal transmission, and at least one conference unit (300) is communicated with the antennas (200) in a wireless mode and is connected with the host (100) through a line to form an audio output unit.

2. Wireless conferencing system for large scale meeting places according to claim 1, wherein the host (100) comprises: the mobile phone comprises a first MCU module (11), a first key module (12), a liquid crystal display module (13), a first conversion module (14), a first power control module (15) and a first audio processing module (16), wherein the first MCU module (11) is respectively electrically connected with the first key module (12), the liquid crystal display module (13), the first conversion module (14) and the first power control module (15), and the first conversion module (14), the first power control module (15) and the first audio processing module (16) are connected with an antenna (200) through circuits.

3. Wireless conferencing system for large scale meeting places according to claim 1, wherein the antenna (200) comprises: the system comprises a second MCU module (21), a first wireless module (22), a UHF receiving module (23), a second audio processing module (24), a second conversion module (25), a dial switch (26) and a second power control module (27), wherein the second MCU module (21) is respectively electrically connected with the first wireless module (22), the second conversion module (25), the dial switch (26) and the second power control module (27), the second MCU module (21) is also electrically connected with at least one UHF receiving module (23), the other end of the UHF receiving module (23) is electrically connected with the second audio processing module (24), and the second conversion module (25), the second power control module (27) and the second audio processing module (24) are connected with a host (100) through circuits.

4. Wireless conferencing system for large scale meeting places according to claim 3, wherein the conferencing unit (300) comprises: a third MCU module (31), a UHF transmitting module (32), a second wireless module (33), a third power control module (34), a third audio processing module (35), a battery (36), a microphone (37), a second key module (38) and an LED module (39), the third MCU module (31) is respectively and electrically connected with the UHF transmitting module (32), the second wireless module (33), the third power control module (34), the third audio processing module (35), the second key module (38) and the LED module (39), the third audio processing module (35) is also electrically connected with the UHF transmitting module (32) and the microphone (37) respectively, the third power control module (34) is also electrically connected to the battery (36), the UHF transmitting module (32) communicates with the UHF receiving module (23) through UHF, the second wireless module (33) communicates with the first wireless module (22) wirelessly.