Information communication terminal

Abstract

The utility model discloses an information communication terminal, which relates to the technical field of communication equipment, and comprises a head-mounted wireless communication earphone, an audio control module is arranged in the head-mounted wireless communication earphone, the audio control module is connected with a control panel, and audio transceiving, voice processing and display can be controlled through functional keys on the control panel; the antenna is installed on the SMA radio frequency interface of the head-mounted wireless call earphone and can receive and transmit radio frequency signals. The audio cable group can connect the head-mounted wireless call earphone with an in-vehicle communication system or a handheld radio station; one end of the charger is used for being externally connected with a power interface, and the other end of the charger can be connected with a charging interface of the head-mounted wireless call earphone, so that charging of a lithium battery arranged in the head-mounted wireless call earphone is achieved. The helmet can be worn outside the helmet and used in combination with the helmet or independently worn on the head to be used independently.

Description

Technical Field

[0001] The utility model relates to the technical field of communication equipment, in particular to an information communication terminal. Background Art

[0002] With the rapid development of information technology at home and abroad, portable duplex wireless communication devices are increasingly widely used in daily life and work, and the role of voice communication is becoming more and more important. At present, wireless communication devices on the market face many problems, such as unstable signals, short communication distance, weak security, and poor interference suppression. In addition, the current wireless communication devices use earplug receivers on the head of personnel, which are connected to the voice wireless communication device at the waist and abdomen by wire. The wearing method is unreliable, which affects the personnel's complex activities. At present, there is no wireless communication product that can be used in combination with a helmet or used independently, which is inconvenient to use. Therefore, it is urgent to develop a portable duplex wireless communication device that can be used in combination with a helmet or used independently. Utility Model Content

[0003] The utility model aims to provide an information communication terminal to solve the problems existing in the above-mentioned prior art, which can be worn outside a helmet and used in combination with a helmet, or worn independently on the head and used alone.

[0004] To achieve the above purpose, the utility model provides the following solutions:

[0005] The utility model provides an information communication terminal, comprising:

[0006] A head-mounted wireless call headset, which is provided with an audio control module, and the audio control module is connected to a control panel, through which the function keys on the control panel can control audio reception and transmission, voice processing and display;

[0007] The antenna is installed on the SMA radio frequency interface of the head-mounted wireless call headset and can receive and transmit radio frequency signals;

[0008] An audio cable set, capable of connecting the wireless headset to an in-car communication system or a handheld radio;

[0009] The charger has one end for an external power supply interface and the other end capable of being connected to a charging interface of the head-mounted wireless call headset to charge the lithium battery built into the head-mounted wireless call headset.

[0010] Optionally, the head-mounted wireless call headset includes a neckloop head-mounted group, on which two earmuffs are symmetrically arranged, a receiver is provided on the ear-adjacent side of the earmuff, a transmitter is connected to the oblique lower portion of one of the earmuffs, and the SMA radio frequency interface is provided on the other earmuff; the audio control module and lithium battery are provided in the earmuffs.

[0011] Optionally, the neck ring headband set includes a neck ring, a flexible headband is connected to the top of both ends of the neck ring, two brackets are symmetrically provided at both ends of the bottom of the neck ring, an earmuff is provided on the inner side of each bracket, and the earmuff is rotatably connected to the adjustment rods at both ends of the bracket on the same side.

[0012] Optionally, a neck ring pad is provided on the neck ring, and the neck ring pad is made of double-layer mesh cloth, cotton silk edging tape and nylon adhesive tape; the flexible headband has the same structure as the neck ring pad.

[0013] Optionally, the neck ring includes two steel wire frames with the same structure, the steel wire frames include an arc-shaped ring neck portion and a semicircular ear side portion, the ring neck portion and the ear side portion are integrally formed, the ring neck portions of the two steel wire frames are cross-fixedly connected at an angle, and the neck ring pad is sleeved on the two cross-fixedly connected ring neck portions; the two ends of the flexible headband are respectively connected to the top ends of the two ear side portions; one end of the bracket is connected to the end of the ear side portion of one of the steel wire frames, and the other end of the bracket is connected to the end of the ring neck portion of the other steel wire frame.

[0014] Optionally, the earmuff includes an earmuff shell, and the earmuff shell is connected to the neck ring headband group; the audio control module is provided in the cavity of the earmuff shell, and the audio control modules in the two earmuff shells are connected via a neck ring cable; an ear pad is provided on the inner side of the earmuff shell, and the receiver is provided on the ear pad.

[0015] Optionally, the control panel is provided on the outer side of the earmuff shell for fitting the left ear, and a plurality of function buttons are provided on the control panel, and the function buttons are electrically connected to the audio control module; the earmuff shell for fitting the left ear is connected to a microphone; the earmuff shell for fitting the right ear is provided with the SMA radio frequency interface; and a pickup microphone is provided on the outer side of the earmuff shell, and the pickup microphone is connected to the audio control module.

[0016] Optionally, the interior of the earmuff shell is filled with a porous sound-absorbing material layer; the ear pad is an annular structure, and its inner lining is provided with a sound-absorbing sponge.

[0017] Optionally, the microphone includes a microphone body, the microphone body is connected to a microphone serpentine tube, the other end of the microphone serpentine tube is provided with a plug mechanism, and the plug mechanism is used to be inserted into an interface at the oblique lower part of the earmuff.

[0018] Optionally, the audio control module includes a control unit, which is electrically connected to the function key and connected to the antenna via a radio frequency transceiver unit; the control unit is connected to an audio codec unit, which is electrically connected to a transmitter and a receiver, respectively.

[0019] Compared with the prior art, the utility model has achieved the following technical effects:

[0020] The utility model adopts a head-mounted wireless call headset, which can be used in combination with a helmet or used independently, and can be connected to an in-vehicle communication system passenger box or a handheld radio audio interface through a wired cable for wired voice communication. At the same time, through function buttons and an audio control module, channel selection, volume adjustment, ambient sound monitoring, motion monitoring, and antenna switching can be performed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is a schematic diagram of the structure of a head-mounted wireless call headset for an information communication terminal of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the wireless headset without earmuffs;

[0024] Figure 3 This is a schematic diagram of the neck ring structure of the utility model;

[0025] Figure 4 This is a schematic cross-sectional view of the earmuff of the utility model;

[0026] Figure 5 It is a schematic diagram of the earmuff of the utility model fitting the left ear;

[0027] Figure 6 This is an exploded view of the earmuff of the utility model fitting the left ear;

[0028] Figure 7 This is a schematic diagram of the earmuff of the utility model fitting the right ear;

[0029] Figure 8 This is an exploded view of the earmuff of the utility model fitting the right ear;

[0030] Fig. 9 This is a schematic diagram of the ear pad of the utility model;

[0031] Fig.10 This is a schematic diagram of the explosion of the ear pad of the utility model;

[0032] Fig.11 This is a schematic diagram of the microphone of the utility model;

[0033] Fig.12 This is a schematic diagram of an external antenna of the utility model;

[0034] Fig.13 This is a schematic diagram of the layout of the audio control module of the utility model.

[0035] In the figure: 1-earmuff shell, 2-microphone, 201-microphone body, 202-microphone snake, 203-plug mechanism, 3-antenna, 4-function button, 5-pickup microphone, 6-flexible headband, 7-bracket, 701-adjustment rod, 8-SMA radio frequency interface, 9-ear pad, 10-neck ring pad, 11-wire frame, 1101-ear side, 1102-neck ring, 12-plastic card slot, 13-neck ring cable, 14-receiver, 15-MCU circuit, 16-audio codec, 17-RF transceiver circuit, 18-RF power amplifier, 19-power management unit, 20-button unit, 21-in-car talker or handheld radio. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] The utility model aims to provide an information communication terminal to solve the problems existing in the above-mentioned prior art, which can be worn outside a helmet and used in combination with a helmet, or worn independently on the head and used alone.

[0038] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0039] The existing communication equipment is installed at the waist and abdomen, and uses earplug-type receivers to connect to the communication equipment at the waist and abdomen through wires. The wearing method is unreliable and affects the complex activities of people. Therefore, the utility model provides an information communication terminal, such as Figures 1 to 13As shown, the receiver, the audio control module with communication function and the antenna 3 are integrated into the head-mounted structure. The antenna 3 of the utility model includes an internal antenna and an external antenna. The internal antenna adopts a spiral antenna, which is small in size and is directly welded on the audio control module and finally installed inside the earmuff. The external antenna is detachable, with an SMA standard interface and gold-plated treatment, which has good corrosion resistance.

[0040] The specific structure of the utility model includes a head-mounted wireless call headset, which is equipped with an audio control module, and the audio control module is connected to a control panel. The function buttons 4 on the control panel can be used to control audio reception and transmission, voice processing and display. The headset supports centerless ad hoc networking, and the wireless communication distance reaches more than 1 km. The function buttons 4 can be used to switch between multiple channels and internal / external antennas. The headset has multi-level volume adjustment, and functions such as ambient sound monitoring can be manually turned on or off. The head-mounted wireless call headset is positioned as an audio control unit, and all operations, settings of audio reception and transmission, voice processing and display are performed in this unit. The head-mounted wireless call headset is equipped with a motion monitoring sensor, which can monitor the wearing status. There is no need to wear additional communication equipment at the waist and abdomen. The headset can be worn on the head as a whole, which is flexible and reliable.

[0041] When in use, the external antenna 3 is installed on the SMA radio frequency interface 8 of the head-mounted wireless call headset, which can realize the reception and transmission of radio frequency signals. The SMA radio frequency interface 8 (SMA Connector) is a widely used microwave high-frequency connector, and its full name is Small A Type. It belongs to the prior art and can realize the reception and transmission of radio frequency signals. The audio cable group is an audio cable in the prior art, one of which can connect the communication interface of the head-mounted wireless call headset with the passenger box of the in-vehicle communication system to realize wired voice communication between the two, and the other audio cable can connect the communication interface of the head-mounted wireless call headset with the handheld radio to realize wired voice communication between the two. The charger can be connected to the charging interface of the head-mounted wireless call headset through its own charging cable to realize fast charging of the built-in lithium battery.

[0042] When the utility model is working, after the terminal presses the power button in the function button 4, the audio control module detects whether it is currently in a wired communication state or a wireless communication state, and selects a working mode according to the current state.

[0043] After entering the wireless working mode, use function button 4 to set the current channel and volume parameters. The default working channel is 1 and the volume is 3. After the setting is completed, the communication between the head-mounted wireless call headset and the headset can be realized.

[0044] The earmuff of the head-mounted wireless call headset is provided with a pickup microphone 5, which can obtain the ambient background sound in real time, providing users with more comprehensive site resources. The pickup microphone 5 can be operated by the function button 4 as needed to turn on or off the ambient sound monitoring function. The motion monitoring sensor is used to monitor whether the device is currently in a wearing state. If it is not worn for a long time, it sends a signal to the audio control module and the power management unit to automatically turn off the power supply and reduce energy consumption.

[0045] After entering the wired working mode, the head-mounted wireless call headset is only used as an ordinary communication headset without other special functions.

[0046] In order to realize the independent use function of the structure of the utility model and the function of being used in conjunction with a helmet, the head-mounted wireless call headset structure is designed in this embodiment to include a bracket 7, earmuffs and a neck ring, two earmuffs are symmetrically arranged on the neck ring, a receiver 14 is arranged on the ear side of the earmuff, one of the earmuffs is connected to a transmitter 2 at an oblique lower part, and an SMA radio frequency interface 8 is arranged on the other earmuff; an audio control module and a lithium battery are arranged in the earmuff.

[0047] Specifically, the neck ring includes two steel wire frames 11 with the same structure. The steel wire frames 11 include an arc-shaped ring neck portion 1102 and a semicircular ear side portion 1101. One end of the ring neck portion 1102 and one end of the ear side portion 1101 are an integrally formed structure. The ring neck portions 1102 of the two steel wire frames 11 are cross-fixed and connected at an angle. The neck ring pad 10 is sleeved on the two cross-fixed ring neck portions 1102. The steel wire frame 11 is made of ICr18Ni19 stainless steel wire with a diameter of Φ2mm, and has the characteristics of strong weather resistance and moderate rigidity. The headband structure adopts a double cross structure, and the clamping force of the headband is kept within 10N. After being worn by different head shapes of large, medium and small, the clamping force is moderate and comfortable to wear, which solves the problem of feeling uncomfortable after long-term wearing and improves the wearing comfort. The two ends of the flexible headband 6 are respectively connected to the top of the two ear side parts 1101; one end of the bracket 7 is connected to the plastic card slot 12 at the end of the ear side part 1101 of one of the wire frames 11, and the other end of the bracket 7 is connected to the plastic card slot 12 at the end of the ring neck 1102 of the other wire frame 11, so as to support the wire frame 11, realize the rapid disassembly and replacement of the neck ring and the rapid change of the earphone shape, and facilitate the installation of earmuffs; an earmuff is provided on the inner side of each bracket 7, and the earmuff is rotatably connected to the adjustment rod 701 at both ends of the bracket 7 on the same side. The adjustment rod 701 is similar to a rotating shaft structure, and the earmuff can rotate slightly around the rotating shaft, which is convenient to adjust, comfortable to wear, light in weight, and can be worn by people with different head shapes.

[0048] A neck ring pad 10 is provided on the neck ring, and the neck ring pad 10 is made of double-layer mesh cloth, cotton silk edging tape and nylon adhesive tape; the flexible headband 6 has the same structure as the neck ring pad 10, and has the characteristics of good deformation elasticity, beautiful appearance, convenience in wearing and disassembly, and reliability.

[0049] Further preferably, the earmuffs include an earmuff shell 1, the main material of the earmuff shell 1 is engineering plastic, the earmuff parts are pressed by a mold, and have the advantages of high strength, good environmental adaptability, and good noise isolation performance. The earmuff wall thickness and the cavity design therein are combined with acoustic performance, and a porous sound-absorbing material is filled inside the earmuff shell 1. The porous sound-absorbing material is a material in the prior art, so it is not described in detail, so that the earmuffs have a certain isolation effect on noise. The cavity structure inside the earmuff comprehensively considers the requirements of noise protection, weight, acoustic performance, and user wearing and use, and adopts a design with a thin front end and a thick rear end, which can be adapted to a variety of helmet types; a semi-enclosed structure is used inside the cavity to increase the volume of the ear cavity, and polyurethane foam is used as a sound-absorbing material, which can effectively allow sound waves to enter the sound-absorbing material without reflection and quickly consume its sound energy, effectively isolating noise and achieving a good noise isolation effect.

[0050] The earmuff shell 1 is connected to the neck ring, and fits the human ear when worn, has good conformity to the face, has a wide range of adaptability, and is very comfortable to wear; an audio control module is provided in the cavity of the earmuff shell 1, and the audio control modules in the two earmuff shells 1 are connected through a ring neck cable 13; an ear pad 9 is provided on the inner side of the earmuff shell 1, and a receiver 14 is provided at the ear pad 9, and the receiver 14 is electrically connected to the audio control module and can transmit sound signals. The ear pad 9 is an annular structure, and the outer skin of the ear pad 9 is black PU leather, which has good corrosion resistance and aging resistance, and good extrusion deformation characteristics. The inner lining material of the ear pad 9 is a sound-absorbing sponge, which is light in weight and can isolate external environmental noise. The ear pad 9 fits closely with the human ear, is more comfortable to wear, is soft and breathable, and has excellent sealing and sound insulation performance.

[0051] The outer side of the earmuff shell 1 for fitting the left ear is provided with a control panel, and five function buttons 4 are arranged on the control panel, and the function buttons 4 are electrically connected to the audio control module. All functions of the product (such as power on and off, channel and volume selection, monitoring, etc.) are completed through the five function buttons 4. The function buttons 4 are made of silicone rubber material, which is resistant to aging and not easy to break, and are made by molds. It is easy to operate according to the usage habits. The earmuff shell 1 for fitting the left ear is connected with a transmitter; the earmuff shell 1 for fitting the right ear is provided with an SMA radio frequency interface 8, which can be electrically connected to the audio control module; the outer side of the earmuff shell 1 is provided with a pickup microphone 5, and the pickup microphone 5 is connected to the audio control module.

[0052] The microphone 2 includes a microphone body 201, which is connected to a voice transmission serpentine tube 202, and a plug mechanism 203 is provided at the other end of the voice transmission serpentine tube 202. The plug mechanism 203 is used to be inserted into the interface at the lower oblique part of the earmuff and is electrically connected to the audio control module; the shells of the microphone body 201 and the plug mechanism 203 are mainly made of ABS injection molding, and the voice transmission serpentine tube 202 is made of stainless steel material, and the outside is wrapped with a polyethylene heat shrink tube, which is convenient for the adjustment of the microphone, and has a beautiful appearance and a reliable structure. The total length of the microphone 2 is designed to be 135mm. When worn, the bending degree of the voice transmission serpentine tube 202 can be adjusted arbitrarily, and it can be placed 5mm to 10mm away from the mouth, which can adapt to different face shapes; the plug mechanism 203 includes a non-slip screw at the tail of the microphone, which can be fixed on the earmuff to achieve quick plugging and unplugging.

[0053] like Fig.13 As shown, the audio control module in this embodiment includes a power management unit 19, a button unit 20, and a control unit. The control unit includes an MCU circuit 15. The control unit is electrically connected to the function button 4 of the button unit 20 on the earmuff, and the control unit is connected to the antenna through a radio frequency transceiver unit. The radio frequency transceiver unit includes a radio frequency transceiver circuit 17 and a radio frequency power amplifier 18. The radio frequency power amplifier 18 is connected to an external antenna 3; the control unit is connected to an audio codec unit, which is an audio codec 16 in the prior art, and the audio codec unit is electrically connected to the transmitter and the receiver 14 respectively; the power management unit 19 also adopts a device in the prior art, and the power management unit 19 controls the lithium battery to power the audio control module and other components. The transmitter 2 and the pickup microphone 5 collect voice signals and environmental sound signals respectively. The two audio signals are sent to the audio codec 16 together with the audio signal sent by the in-car intercom or handheld radio 21. The in-car intercom is the passenger box of the in-car communication system, which belongs to the prior art. The audio codec 16 implements filtering, amplification, and A / D conversion of the voice analog signal and the environmental voice signal under the control of the program and algorithm of the MCU circuit 15, and then enters the MCU circuit to perform multi-time slot voice information compression, frame data synchronization, and multi-channel voice data multiplexing synthesis, and processes, distributes and coordinates a large amount of information such as related control information, data information, and external data interface. The MCU circuit controls the audio codec to output audio signals to the receiver 14 and the passenger box or handheld radio of the in-car communication system. The program and algorithm of the MCU belong to the prior art, and the utility model will not be described in detail.

[0054] The button unit 20 can realize the product's power on and off, channel and volume adjustment, switching between the internal antenna and the external antenna, and enabling and disabling the ambient sound monitoring function by controlling the corresponding function button 4 and cooperating with the MCU circuit 15. The power management unit 19 can realize the power supply control and power supply conversion of the product and supply power to other internal units. The MCU circuit 15 sends the baseband signal to the RF transceiver circuit 17 to complete the signal modulation, and sends the RF signal carrying the information to the RF power amplifier 18 for amplification, and finally transmits it through the antenna; reception is the reverse process of transmission, and the MCU circuit (Microcontroller Unit) is a kind of integrated circuit and belongs to the prior art.

[0055] The MCU unit uses a low-power, low-voltage, high-speed processor, and the main frequency speed of the chip is not less than 200MIPS. The MCU circuit 15 is the control core of the product, which is mainly responsible for multi-time slot voice information compression, decompression, frame data transmission / reception, multi-channel voice data multiplexing synthesis, and the processing, distribution and coordination of a large amount of information such as related control information, data information, and external data interface. In order to reduce the complexity of the hardware circuit, the processing of multi-channel voice data is completed by software; the software can complete the control of the information communication terminal and realize wireless calls between head-mounted wireless call headsets. The main functions implemented by the software include wireless call function, wired communication function, channel volume setting function, ambient sound monitoring function, motion monitoring function, etc. Motion monitoring is the use of motion monitoring sensors to monitor the motion state of the device in real time after the utility model is powered on. According to the preset parameters of the software, the device of the utility model is relatively static for a certain period of time, and the device will automatically enter a sleep state, which can significantly reduce the ineffective loss of lithium battery power and fully extend the use time of the device. The antenna switching function is that when the device is turned on, the radio frequency unit defaults to an external antenna, and the communication distance is more than 1km for long-distance communication. When the user needs a short-distance communication of about 500m, the radio frequency unit can be switched to the built-in antenna by operating the corresponding function button 4 to achieve short-distance communication of about 500m. The software involved in the above embodiment is written using software development tools and belongs to the prior art, so it will not be described in detail.

[0056] The RF transceiver unit uses a low-voltage professional communication chip with a spread spectrum function and a 900MHz frequency band, which has certain anti-interference ability and confidentiality performance. The chip has a wide operating frequency range, including RF transceiver and transceiver conversion, modulation and demodulation (spread spectrum, despreading), frequency synthesis, programmable transmission power control, SPI serial data communication and other functions, thereby realizing RF modulation and demodulation. Only a crystal oscillator and a small amount of filtering components need to be connected externally. All parameters including the channel transmission frequency can be configured through the chip's internal configuration register using the SPI serial line. In this embodiment, the processor can be flexibly configured according to the channel modulation method and transmission rate.

[0057] The audio codec unit mainly converts the analog voice signal of the personnel into a digital signal that is easy to transmit and store, and the receiving end restores the digital signal to an analog signal. The circuit chip selects a professional chip with multiple input and output and expandable audio power. The chip can use existing technology and will not be described in detail. The chip ADC and DAC signal-to-noise ratio can reach 100dB. The 8K~192Kbit / s data rate can be selected as needed. All parameters including gain control, filter selection, A / D, D / A conversion, etc. can be configured through the configuration register inside the chip using the IIC serial line. The voice output is output by the HPL and LOL ports of the audio codec chip, and the audio output amplitude is adjustable so that the audio output of the receiver 14 is not less than 90dB.

[0058] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. An information communication terminal, characterized in that: include: A head-mounted wireless call headset, which is provided with an audio control module, and the audio control module is connected to a control panel, through which the function keys on the control panel can control audio reception and transmission, voice processing and display; The antenna is installed on the SMA radio frequency interface of the head-mounted wireless call headset and can receive and transmit radio frequency signals; An audio cable set, capable of connecting the wireless headset to an in-car communication system or a handheld radio; The charger has one end for an external power supply interface and the other end capable of being connected to a charging interface of the head-mounted wireless call headset to charge the lithium battery built into the head-mounted wireless call headset.

2. The information communication terminal according to claim 1, characterized in that: The head-mounted wireless call headset includes a neck ring head-mounted group, and two earmuffs are symmetrically arranged on the neck ring head-mounted group. A receiver is provided on the side of the earmuff that is close to the ear, and a transmitter is connected to the oblique lower part of one of the earmuffs, and the SMA radio frequency interface is provided on the other earmuff; the audio control module and the lithium battery are arranged in the earmuff.

3. The information communication terminal according to claim 2, characterized in that: The neck ring headband assembly includes a neck ring, the top of both ends of the neck ring are connected with a flexible headband, the two ends of the bottom of the neck ring are symmetrically provided with two brackets, each of the brackets is provided with an earmuff on the inner side, and the earmuff is rotatably connected to the adjustment rods at both ends of the bracket on the same side.

4. The information communication terminal according to claim 3, characterized in that: The neck ring is provided with a neck ring pad, which is made of double-layer mesh cloth, cotton silk edging tape and nylon adhesive tape; the flexible headband has the same structure as the neck ring pad.

5. The information communication terminal according to claim 4, characterized in that: The neck ring includes two steel wire frames with the same structure, and the steel wire frames include an arc-shaped ring neck portion and a semicircular ear side portion. The ring neck portion and the ear side portion are integrally formed, and the ring neck portions of the two steel wire frames are cross-fixed and connected at an angle, and the neck ring pad is sleeved on the two cross-fixed ring neck portions; the two ends of the flexible headband are respectively connected to the top ends of the two ear side portions; one end of the bracket is connected to the end of the ear side portion of one of the steel wire frames, and the other end of the bracket is connected to the end of the ring neck portion of the other steel wire frame.

6. The information communication terminal according to claim 2, characterized in that: The earmuff comprises an earmuff shell, which is connected to the neck ring headband group; the audio control module is arranged in the cavity of the earmuff shell, and the audio control modules in the two earmuff shells are connected via a neck ring cable; an ear pad is arranged on the inner side of the earmuff shell, and the receiver is arranged on the ear pad.

7. The information communication terminal according to claim 6, characterized in that: The control panel is provided on the outer side of the earmuff shell for fitting the left ear, and a plurality of function buttons are provided on the control panel, and the function buttons are electrically connected to the audio control module; the earmuff shell for fitting the left ear is connected to a microphone; the earmuff shell for fitting the right ear is provided with the SMA radio frequency interface; a pickup microphone is provided on the outer side of the earmuff shell, and the pickup microphone is connected to the audio control module.

8. The information communication terminal according to claim 6, characterized in that: The earmuff shell is filled with a porous sound-absorbing material layer; the ear pad is an annular structure, and its inner lining is provided with a sound-absorbing sponge.

9. The information communication terminal according to claim 2, characterized in that: The microphone comprises a microphone body, the microphone body is connected with a microphone serpentine tube, the other end of the microphone serpentine tube is provided with a plug mechanism, and the plug mechanism is used for being plugged into the interface at the oblique lower part of the earmuff.

10. The information communication terminal according to claim 2, characterized in that: The audio control module includes a control unit, which is electrically connected to the function key and connected to the antenna via a radio frequency transceiver unit; the control unit is connected to an audio codec unit, which is electrically connected to a transmitter and a receiver respectively.

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