CN111163448B - Interphone system and use method thereof - Google Patents
Interphone system and use method thereof Download PDFInfo
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- CN111163448B CN111163448B CN201911346788.0A CN201911346788A CN111163448B CN 111163448 B CN111163448 B CN 111163448B CN 201911346788 A CN201911346788 A CN 201911346788A CN 111163448 B CN111163448 B CN 111163448B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
- H04W4/10—Push-to-Talk [PTT] or Push-On-Call services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/48—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for in-vehicle communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
- H04W52/0248—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal dependent on the time of the day, e.g. according to expected transmission activity
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention provides an interphone system, which comprises an interphone, a Bluetooth module, a Bluetooth PTT and Bluetooth equipment, wherein the interphone comprises a microprocessor, an audio channel connected with the microprocessor, a Bluetooth module interface connected with the microprocessor and the audio channel respectively, and a transmitting module connected with the audio channel, the Bluetooth PTT and the Bluetooth equipment can be connected with the Bluetooth module in an adaptive manner, the Bluetooth module works in a master mode, and the Bluetooth PTT and the Bluetooth equipment work in a slave mode; bluetooth PTT is used for controlling the emission of interphones, and Bluetooth equipment is used for collecting voice signals to be sent and playing received voice signals. The invention also provides a use method of the interphone system. The invention ensures that the user can finish the conversation without holding the interphone and pressing the Bluetooth PTT all the time, can avoid the loss of the voice signal as much as possible, and improves the satisfaction degree of the user experience.
Description
Technical Field
The invention relates to an interphone system and a use method thereof.
Background
The interphone is used as a communication tool for bidirectional movement, is widely applied to activities such as transportation industry, self-driving tour and the like, and can enable command, dispatch, coordination and pace during driving. However, the interphone needs to press the PTT voice transmitting key when sending voice, thus occupying one hand and having great safety risk when driving.
The existing mobile phone is widely applied in life, but the interphone is not quite common to connect with the vehicle-mounted Bluetooth audio system and Bluetooth equipment such as Bluetooth earphone, the interphone and the mobile phone are the largest in that the incoming call or the outgoing call of the mobile phone is provided with a ring tone which is received by the caller or is used as a buffer time, but the interphone belongs to an instant messaging product and has the characteristics of receiving and listening after being used as a phone, so that the interphone can encounter the following problems which are completely different from the mobile phone after being connected with the vehicle-mounted Bluetooth audio system, the Bluetooth earphone and the like: 1. the existing Bluetooth devices have uneven performance, and some Bluetooth devices with poor performance have the defect of slow opening of an audio channel, so that a voice signal is lost in the conversation process; 2. after the interphone is connected, the user is usually connected with the Bluetooth equipment to play music when the conversation is not performed, of course, the voice conversation of the interphone has priority, but due to the characteristic that the interphone can listen to the voice conversation by one click, when an instantaneous signal is caused by false triggering of Bluetooth PTT, the music playing is interrupted, the problems are easy to occur repeatedly, and thus poor experience of the user is caused; 3. in the prior art, bluetooth PTT is fixed on a steering wheel, and can be used for talkback after being pressed, and talkback is finished after being released, but a driver needs to operate the steering wheel, and then presses Bluetooth PTT again, so that a relatively high danger exists in driving; 4. the existing Bluetooth PTT is a built-in lithium battery, the capacity is small, and in order to save electricity, the Bluetooth PTT can enter dormancy after the conversation is finished, but the Bluetooth PTT in the dormancy state needs a certain time for restarting, so that the loss of voice signals is easy to cause; 5. during communication, a hand-held interphone is required.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an interphone system and a use method thereof, a user can finish talking without holding the interphone and pressing Bluetooth PTT all the time, thereby avoiding the loss of voice signals as much as possible and improving the satisfaction degree of user experience.
The invention is realized by the following technical scheme:
the interphone system comprises an interphone, a Bluetooth module, a Bluetooth PTT and Bluetooth equipment, wherein the interphone comprises a microprocessor, an audio channel connected with the microprocessor and a Bluetooth module interface connected with the microprocessor and the audio channel respectively, the Bluetooth PTT and the Bluetooth equipment can be connected with the Bluetooth module in an adaptive manner, the Bluetooth module works in a master mode, and the Bluetooth PTT and the Bluetooth equipment work in a slave mode; the Bluetooth PTT is used for controlling the emission of the interphone, and the Bluetooth equipment is used for collecting the voice signal to be sent and playing the received voice signal;
the microprocessor is provided with a link maintaining time t1, and after the call is finished, the microprocessor controls the audio channel to be continuously opened for the time t1 and then closed;
the microprocessor is provided with a link delay time length t2, and after receiving the voice signal, the microprocessor controls the audio channel to be started to play the voice signal after delaying the time length t 2;
the microprocessor is provided with a PTT dormancy time t3, and after the Bluetooth PTT is used, the time length t3 is prolonged, and the Bluetooth PTT enters a dormancy state;
the microprocessor is provided with a PTT short press mode, in the mode, when the microprocessor detects that Bluetooth PTT is short pressed, the microprocessor controls the interphone to start transmitting and keep in a transmitting state, and when the microprocessor detects that Bluetooth PTT is short pressed again, the transmitting state is ended.
Further, the link maintenance duration t1 may be set as: off, 1 second, 2 seconds, 3 seconds, 4 seconds, 5 seconds, 6 seconds, 7 seconds, 8 seconds, 9 seconds, 10 seconds, 11 seconds, 12 seconds, 13 seconds, 14 seconds, 15 seconds, 16 seconds, 17 seconds, 18 seconds, 19 seconds, 20 seconds, 21 seconds, 22 seconds, 23 seconds, 24 seconds, 25 seconds, 26 seconds, 27 seconds, 28 seconds, 29 seconds, 30 seconds, 60 seconds, 120 seconds, or an unlimited time.
Further, the link delay time t2 may be set as: off, 1 second, 2 seconds, 3 seconds, 4 seconds, 5 seconds, 6 seconds, 7 seconds, 8 seconds, 9 seconds, or 10 seconds.
Further, the PTT sleep time t3 may be set to be a distance from the end of bluetooth PTT use: off, 1 minute, 2 minutes, 3 minutes, or 4 minutes.
Further, the bluetooth module interface includes the first data interface of being connected with microprocessor communication end and the first audio interface of being connected with the audio channel, bluetooth module includes bimodulus bluetooth module, change over switch and intercom interface, and change over switch is connected with bimodulus bluetooth module audio input/output end so that bimodulus bluetooth module switches between input and output, and the intercom interface includes the second data interface of being connected with bimodulus bluetooth module communication end and the second audio interface of being connected with the change over switch, and first, second data interface dock, first, second audio interface dock.
Further, the Bluetooth PTT comprises a low-power Bluetooth module and a second key module connected with the low-power Bluetooth module.
Further, the Bluetooth device comprises a Bluetooth headset or a vehicle-mounted Bluetooth system, and the Bluetooth headset or the vehicle-mounted Bluetooth system are provided with a microphone and a loudspeaker.
Further, the interphone further comprises a first key module, a display module, a storage module, a transmitting module and a receiving module, wherein the first key module, the display module and the storage module are connected with the microprocessor, and the transmitting module and the receiving module are respectively connected with the audio channel.
Further, the microprocessor model is GD32F303VGT6.
The invention is also realized by the following technical scheme:
the application method of the vehicle-mounted interphone system comprises the following steps:
A. the Bluetooth module is paired with the Bluetooth PTT, and the Bluetooth module is paired with the Bluetooth equipment;
B. when sending voice signals, the Bluetooth PTT sends the short-press signals to the Bluetooth module and then sequentially transmits the short-press signals to the microprocessor of the interphone through the second data interface and the first data interface, and the microprocessor controls the interphone to emit and keep in an emitting state after detecting the short-press signals;
C. when the transmission of the voice signal is finished, the second key module of the Bluetooth PTT is pressed again, the Bluetooth PTT transmits the short pressing signal to the Bluetooth module and then sequentially transmits the short pressing signal to the microprocessor of the interphone through the second data interface and the first data interface, and the microprocessor controls the interphone to stop transmitting after detecting the short pressing signal;
D. when a voice signal is received, if the interphone sets the link delay time length t2, the microprocessor delays the link delay time length t2 and then controls the audio channel to be opened;
E. if the call needs to be continued, entering a step B; otherwise, enter step F;
F. after the call is ended, the microprocessor controls the output and input of the voice signal of the closed audio channel, but the audio channel is continuously opened; after the audio channel continues to be opened for the link maintaining time t1, the microprocessor controls the audio channel to be completely closed;
G. if the Bluetooth PTT is set with the PTT sleep time t3, the Bluetooth PTT enters a sleep state after the sleep time t3; the Bluetooth PTT can be awakened by pressing a second key module of the Bluetooth PTT;
H. the Bluetooth module and the Bluetooth PTT are in exit pairing; the Bluetooth module and the Bluetooth device are out of pairing.
The invention has the following beneficial effects:
1. according to the invention, the Bluetooth PTT and the Bluetooth equipment are respectively interconnected and communicated with the interphone through the Bluetooth module, the Bluetooth PTT is used for controlling the emission of the interphone, and the Bluetooth equipment is used for collecting and playing voice signals, so that a microphone and a loudspeaker of the interphone are replaced, a user can finish conversation without holding the interphone, the user experience is improved, and the driving risk caused by holding the interphone is avoided; the link maintaining time length t1 is set, after the call is ended, the microprocessor controls the audio channel to be continuously opened for the time length t1 and then closed, and in the time period t1, if the voice is received again, the voice channel does not need to be opened again, so that the problem of voice loss caused by slow opening of the audio channel is avoided; the link delay time length t2 is set, and after the voice channel is closed, the microprocessor delays the time length t2 and then controls the audio channel to be opened, so that voice signals with the time length less than t2 are not received, thereby not interrupting music playing and avoiding bad experiences of users, and the shielded voice signals are usually sounds generated by mistakenly touching Bluetooth PTT and the like, and the normal conversation is not influenced after shielding; the PTT dormancy time t3 is set, so that the time when the Bluetooth PTT enters dormancy can be reasonably set, and the conversation is initiated again within the time t3 after the conversation is ended, namely the time for waking up the Bluetooth PTT is saved, thereby avoiding the voice loss caused by the time; the PTT short pressing mode is set, a user can start transmitting and keep in a transmitting state by pressing Bluetooth PTT for a short time, and after the intercom is finished, the transmitting can be finished by pressing Bluetooth PTT for a short time again, so that the driving danger caused by pressing Bluetooth PTT all the time in the conversation process of a driver is avoided; in conclusion, the invention not only improves the safety of driving conversation, but also improves the use satisfaction degree of user experience.
2. The link maintaining time t1, the link delay time t2 and the PTT dormancy time t3 are provided with a plurality of selectable values, and a user can select corresponding values to set according to the use condition of the interphone, so that the system can adapt to clients with different requirements.
3. The Bluetooth PTT does not need to be provided with a power switch, and the Bluetooth PTT automatically enters into sleep after the sleep time t3 is up, so that the situation that the Bluetooth PTT is long in use and needs to be charged frequently due to the fact that a user forgets to turn off the Bluetooth PTT power supply is effectively prevented.
Drawings
The invention is described in further detail below with reference to the accompanying drawings.
Fig. 1 is a schematic block diagram of an intercom system of the present invention.
FIG. 2 is a flow chart of a method of use of the present invention.
1, an interphone; 11. a microprocessor; 12. an audio channel; 13. a first data interface; 14. a first audio interface; 15. a transmitting module; 16. a receiving module; 17. the first key module; 18. a display module; 19. a storage module; 2. a Bluetooth module; 21. a dual mode Bluetooth module; 22. a change-over switch; 23. a second data interface; 24. a second audio interface; 3. bluetooth PTT; 31. a low-power consumption Bluetooth module; 32. the second key module; 33. a power module; 4. bluetooth device.
Detailed Description
As shown in fig. 1, the intercom system includes an intercom 1, a bluetooth module 2, a bluetooth PTT3, and a bluetooth device 4. The interphone 1 comprises a microprocessor 11, an audio channel 12, a first key module 17, a storage module 19, a display module 18, a Bluetooth module interface, a transmitting module 15 and a receiving module 16, wherein the first key module 17 is connected with a corresponding input end of the microprocessor 11, the display module 18 is connected with a corresponding output end of the microprocessor 11, the storage module 19 is in communication connection with the microprocessor 11, the microprocessor 11 is connected with the audio channel 12 to control on-off of the audio channel, the Bluetooth module interface is respectively connected with the microprocessor 11 and the audio channel 12, and the transmitting module 15 and the receiving module 16 are respectively connected with the audio channel 12. The audio channel 12 is used for amplifying, volume adjusting, modulating/demodulating a voice signal to be transmitted or received, and its specific structure and control thereof by the microprocessor 11 are known in the art.
The bluetooth module interface comprises a first data interface 13 connected with the communication end of the microprocessor 11 and a first audio interface 14 connected with the audio channel 12, the bluetooth module 2 comprises a dual-mode bluetooth module 21, a switch 22 and an interphone interface, the switch 22 is connected with the audio input/output end of the dual-mode bluetooth module 21 so as to enable the audio port of the dual-mode bluetooth module 21 to switch between input and output, the interphone interface comprises a second data interface 23 connected with the communication end of the dual-mode bluetooth module 21 and a second audio interface 24 connected with the switch 22, the first data interface 13 is in butt joint with the second data interface 23 to transmit data (such as the interphone 1 transmits set data to the bluetooth PTT3 through the interphone interface and the bluetooth module interface), and the first audio interface 14 is in butt joint with the second audio interface 24 to transmit voice signals.
Bluetooth PTT3 and bluetooth equipment 4 all can be connected with bluetooth module 2 adaptation, and bluetooth module 2 works in master mode, and bluetooth PTT3 and bluetooth equipment 4 work in slave mode, when pairing, search for the bluetooth PTT3 and the bluetooth equipment 4 of matching and pair by bluetooth module 2.
The bluetooth PTT3 is installed on the steering wheel, and is used for controlling the transmission of the interphone 1, and comprises a bluetooth low energy module 31, a second key module 32 connected with the bluetooth low energy module 31, and a power module 33 connected with the bluetooth low energy module 31 to supply power to the bluetooth low energy module 31.
The bluetooth device 4 may specifically be a bluetooth headset or a vehicle-mounted bluetooth system, where both the bluetooth headset and the vehicle-mounted bluetooth system have a microphone and a loudspeaker, and the bluetooth device 4 collects a voice signal to be transmitted through the microphone and plays the received voice signal through the loudspeaker.
The microprocessor 11 is provided with a link maintaining time t1, after the conversation is finished, the audio channel 12 continues to be kept in an open state, the microprocessor 11 starts timing, and after the timing time reaches t1, the microprocessor 11 controls the audio channel 12 to be completely closed; specifically, the link-holding time period t1 may be set to off, 1 second, 2 seconds, 3 seconds, 4 seconds, 5 seconds, 6 seconds, 7 seconds, 8 seconds, 9 seconds, 10 seconds, 11 seconds, 12 seconds, 13 seconds, 14 seconds, 15 seconds, 16 seconds, 17 seconds, 18 seconds, 19 seconds, 20 seconds, 21 seconds, 22 seconds, 23 seconds, 24 seconds, 25 seconds, 26 seconds, 27 seconds, 28 seconds, 29 seconds, 30 seconds, 60 seconds, 120 seconds, or unlimited times.
The microprocessor 11 is provided with a link delay time t2, after receiving the voice signal, the microprocessor 11 starts to count time, and when the count time reaches t2, the microprocessor 11 controls the audio channel 12 to be started to play the voice signal; specifically, the link delay time period t2 may be set to: off, 1 second, 2 seconds, 3 seconds, 4 seconds, 5 seconds, 6 seconds, 7 seconds, 8 seconds, 9 seconds, or 10 seconds.
The microprocessor 11 is provided with a PTT dormancy time t3, and the Bluetooth PTT3 is delayed for a time t3 after the Bluetooth PTT3 is used, so that the Bluetooth PTT3 enters a dormancy state; specifically, PTT sleep time t3 may be set to be from the end of bluetooth PTT3 use: off, 1 minute, 2 minutes, 3 minutes, or 4 minutes.
The microprocessor 11 is provided with a PTT short press mode in which, when the microprocessor 11 detects that the bluetooth PTT3 is short pressed, the intercom 1 is controlled to start transmitting and to be kept in a transmitting state, and when the bluetooth PTT3 is short pressed again, the microprocessor 11 controls the intercom 1 to end the transmitting state.
In the using process, a user can enter the menu of the interphone 1 through the first key module 17 to set the link maintaining time t1, the link delay time t2 and the PTT dormancy time t3 suitable for the user, and can perform short-press operation through the second key module 32.
In the present embodiment, the microprocessor 11 is a GD32F303VGT6; the dual-mode Bluetooth module 21 of the Bluetooth module 2 adopts an ET12 dual-mode Bluetooth audio module which is internally provided with a Bluetooth 4.2LE+BR/EDR dual-mode chip, an existing Bluetooth communication firmware and an existing audio codec chip so as to realize data interaction with the microprocessor 11; the bluetooth low energy module 31 of bluetooth PTT3 adopts an ET06 bluetooth low energy module, which is built with a bluetooth SOC chip and existing PTT link firmware for realizing short-distance data wireless transmission, so that it can be conveniently connected with an ET12 dual-mode bluetooth audio module.
In this embodiment, the first key module 17 is a button key, which is connected to the microprocessor 11, and the microprocessor 11 can select the corresponding link holding duration t1, link delay duration t2, and PTT sleep duration t3 according to the action of the button key, where the process is in the prior art. The second key module 32 is a button key.
As shown in fig. 2, a method for using an intercom system includes the following steps:
A. the Bluetooth module 2 is paired with the Bluetooth PTT3, and the Bluetooth module 2 is paired with the Bluetooth device 4; when the Bluetooth module 2 works in a master mode and the Bluetooth PTT3 and the Bluetooth equipment 4 work in a slave mode, the Bluetooth module 2 searches for the matched Bluetooth PTT3 and Bluetooth equipment 4 and performs pairing; after the pairing is successful, the first data interface 13 of the interphone 1 is in butt joint with the second data interface 23 of the Bluetooth module 2, so that the interphone 1 can send setting information to the Bluetooth PTT3 through the Bluetooth module 2, such as MIC gain, volume gain, pairing PIN code and the like of the Bluetooth PTT3, and the setting is convenient; after the pairing is successful, the microprocessor 11 stores the paired equipment related information (such as an ID, an equipment name and the like) into the storage module 19, so that a user can check and quickly pair the paired equipment when using the paired equipment; after the pairing is successful, the microprocessor 11 controls the display module 18 to display a pairing success prompt message;
B. when a voice signal is sent, a button key of the Bluetooth PTT3 is pressed short, the Bluetooth PTT3 sends the short pressing signal to the Bluetooth module 2 and then sequentially sends the short pressing signal to the microprocessor 11 of the interphone 1 through the second data interface 23 and the first data interface 13, after the microprocessor 11 of the interphone 1 detects the short pressing signal, the interphone 1 is controlled to emit and keep in an emitting state, and the microphone of the Bluetooth equipment 4 collects the voice signal, wherein the process of sending the short pressing signal to the microprocessor 11 of the interphone 1 by the Bluetooth PTT3 is the prior art;
C. when the transmission of the voice signal is finished, the button key of the Bluetooth PTT3 is pressed again, the Bluetooth PTT3 transmits the short pressing signal to the Bluetooth module 2 and then sequentially transmits the short pressing signal to the microprocessor 11 of the interphone 1 through the second data interface 23 and the first data interface 13, and after the microprocessor 11 of the interphone 1 detects the short pressing signal, the interphone 1 is controlled to stop transmitting;
D. when receiving the voice signal, if the interphone 1 sets the link delay time length t2, the microprocessor 11 delays the link delay time length t2 and then controls the audio channel 12 to be started, and if the interphone 1 does not set the link delay time length t2 (namely, the link delay time length t2 is set to be 'off'), the microprocessor 11 directly controls the audio channel 12 to be started;
E. if the call needs to be continued, entering a step B; otherwise, enter step F;
F. after the call is ended, if the interphone 1 sets the link maintaining time t1, the microprocessor 11 controls the output and input of the voice signal of the closed audio channel 12, but the audio channel 12 is continuously opened; after the audio channel 12 continues to be opened for the link maintaining time t1, the microprocessor 11 controls the audio channel 12 to be completely closed; if the intercom 1 does not set the link maintenance time t1 (i.e. the link maintenance time t1 is set to be "off"), the microprocessor 11 directly controls the audio channel 12 to be completely closed after the conversation is finished;
G. if the Bluetooth PTT3 is set with the PTT sleep time t3, the Bluetooth PTT3 enters a sleep state after the sleep time t3 is reached; if the Bluetooth PTT3 does not set the PTT dormancy time t3, the Bluetooth PTT3 enters a dormancy state after the conversation is finished; pressing the second button module 32 of Bluetooth PTT3 wakes up Bluetooth PTT3;
H. the Bluetooth module 2 and the Bluetooth PTT3 are out of pairing; bluetooth module 2 and bluetooth device 4 exit the pairing.
The specific structures of the transmitting module 15, the receiving module 16, the storage module 19, the display module 18 and the control of the microprocessor 11 are the prior art. The transmission of the interphone 1 is realized by the transmitting module 15.
The foregoing description is only illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, i.e., the invention is not to be limited to the details of the claims and the description, but rather is to cover all modifications which are within the scope of the invention.
Claims (10)
1. An intercom system, characterized by: the wireless communication system comprises an interphone, a Bluetooth module, a Bluetooth PTT and Bluetooth equipment, wherein the interphone comprises a microprocessor, an audio channel connected with the microprocessor and a Bluetooth module interface connected with the microprocessor and the audio channel respectively, the Bluetooth PTT and the Bluetooth equipment can be connected with the Bluetooth module in an adaptive manner, the Bluetooth module works in a master mode, and the Bluetooth PTT and the Bluetooth equipment work in a slave mode; the Bluetooth PTT is used for controlling the emission of the interphone, and the Bluetooth equipment is used for collecting the voice signal to be sent and playing the received voice signal;
the microprocessor is provided with a link maintaining time t1, and after the call is finished, the microprocessor controls the audio channel to be continuously opened for the time t1 and then closed;
the microprocessor is provided with a link delay time length t2, and after receiving the voice signal, the microprocessor controls the audio channel to be started to play the voice signal after delaying the time length t 2;
the microprocessor is provided with a PTT dormancy time t3, and after the Bluetooth PTT is used, the time length t3 is prolonged, and the Bluetooth PTT enters a dormancy state;
the microprocessor is provided with a PTT short press mode, in the mode, when the microprocessor detects that Bluetooth PTT is short pressed, the microprocessor controls the interphone to start transmitting and keep in a transmitting state, and when the microprocessor detects that Bluetooth PTT is short pressed again, the transmitting state is ended.
2. An intercom system as in claim 1 wherein: the link-hold duration t1 may be set to: off, 1 second, 2 seconds, 3 seconds, 4 seconds, 5 seconds, 6 seconds, 7 seconds, 8 seconds, 9 seconds, 10 seconds, 11 seconds, 12 seconds, 13 seconds, 14 seconds, 15 seconds, 16 seconds, 17 seconds, 18 seconds, 19 seconds, 20 seconds, 21 seconds, 22 seconds, 23 seconds, 24 seconds, 25 seconds, 26 seconds, 27 seconds, 28 seconds, 29 seconds, 30 seconds, 60 seconds, 120 seconds, or an unlimited time.
3. An intercom system as in claim 1 wherein: the link delay time t2 may be set as: off, 1 second, 2 seconds, 3 seconds, 4 seconds, 5 seconds, 6 seconds, 7 seconds, 8 seconds, 9 seconds, or 10 seconds.
4. An intercom system according to claim 1 or 2 or 3, wherein: the PTT sleep time t3 may be set to be from the end of bluetooth PTT use: off, 1 minute, 2 minutes, 3 minutes, or 4 minutes.
5. An intercom system according to claim 1 or 2 or 3, wherein: the Bluetooth module interface comprises a first data interface connected with the communication end of the microprocessor and a first audio interface connected with the audio channel, the Bluetooth module comprises a dual-mode Bluetooth module, a change-over switch and an interphone interface, the change-over switch is connected with the audio input/output end of the dual-mode Bluetooth module so that the dual-mode Bluetooth module can be switched between input and output, the interphone interface comprises a second data interface connected with the communication end of the dual-mode Bluetooth module and a second audio interface connected with the change-over switch, the first audio interface and the second audio interface are in butt joint, and the first audio interface and the second audio interface are in butt joint.
6. An intercom system according to claim 1 or 2 or 3, wherein: the Bluetooth PTT comprises a low-power Bluetooth module and a second key module connected with the low-power Bluetooth module.
7. An intercom system according to claim 1 or 2 or 3, wherein: the Bluetooth device comprises a Bluetooth headset or a vehicle-mounted Bluetooth system, and the Bluetooth headset or the vehicle-mounted Bluetooth system are provided with a microphone and a loudspeaker.
8. An intercom system according to claim 1 or 2 or 3, wherein: the interphone also comprises a first key module, a display module, a storage module, a transmitting module and a receiving module, wherein the first key module, the display module and the storage module are connected with the microprocessor, and the transmitting module and the receiving module are respectively connected with the audio channel.
9. An intercom system according to claim 1 or 2 or 3, wherein: the type of the microprocessor is GD32F303VGT6.
10. The application method of the vehicle-mounted interphone system is characterized by comprising the following steps of: the method comprises the following steps:
A. the Bluetooth module is paired with the Bluetooth PTT, and the Bluetooth module is paired with the Bluetooth equipment;
B. when sending voice signals, the Bluetooth PTT sends the short-press signals to the Bluetooth module and then sequentially transmits the short-press signals to the microprocessor of the interphone through the second data interface and the first data interface, and the microprocessor controls the interphone to emit and keep in an emitting state after detecting the short-press signals;
C. when the transmission of the voice signal is finished, the second key module of the Bluetooth PTT is pressed again, the Bluetooth PTT transmits the short pressing signal to the Bluetooth module and then sequentially transmits the short pressing signal to the microprocessor of the interphone through the second data interface and the first data interface, and the microprocessor controls the interphone to stop transmitting after detecting the short pressing signal;
D. when a voice signal is received, if the interphone sets the link delay time length t2, the microprocessor delays the link delay time length t2 and then controls the audio channel to be opened;
E. if the call needs to be continued, entering a step B; otherwise, enter step F;
F. after the call is ended, the microprocessor controls the output and input of the voice signal of the closed audio channel, but the audio channel is continuously opened; after the audio channel continues to be opened for the link maintaining time t1, the microprocessor controls the audio channel to be completely closed;
G. if the Bluetooth PTT is set with the PTT sleep time t3, the Bluetooth PTT enters a sleep state after the sleep time t3; the Bluetooth PTT can be awakened by pressing a second key module of the Bluetooth PTT;
H. the Bluetooth module and the Bluetooth PTT are in exit pairing; the Bluetooth module and the Bluetooth device are out of pairing.
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| CN112333645A (en) * | 2020-11-24 | 2021-02-05 | 深圳市银河风云网络系统股份有限公司 | Bluetooth group talkback communication system and implementation method thereof |
| CN117440279A (en) * | 2022-07-15 | 2024-01-23 | Oppo广东移动通信有限公司 | Earphone intercom method and device, bluetooth earphone and storage medium |
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| CN105554691A (en) * | 2015-12-30 | 2016-05-04 | 太仓卡斯特姆新材料有限公司 | Low power Bluetooth intercom device |
| CN106230460A (en) * | 2016-08-15 | 2016-12-14 | 广东远峰电子科技股份有限公司 | The communication means of wireless remote control bluetooth earphone, communication system and helmet interactive system |
| CN208158895U (en) * | 2018-05-03 | 2018-11-27 | 深圳市晨讯达科技有限公司 | A kind of PTT transmitter based on intercom, Bluetooth adapter association system |
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| US9215529B2 (en) * | 2010-07-18 | 2015-12-15 | Bose Corporation | Multi-mode audio device interfacing |
| US20160242148A1 (en) * | 2015-02-13 | 2016-08-18 | Mark L. REED | Multi-mode wireless intercom |
| US11089165B2 (en) * | 2017-12-14 | 2021-08-10 | Yssa Charles Abousaid | Retrofitable internet-enabled access control system and method |
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| CN105554691A (en) * | 2015-12-30 | 2016-05-04 | 太仓卡斯特姆新材料有限公司 | Low power Bluetooth intercom device |
| CN106230460A (en) * | 2016-08-15 | 2016-12-14 | 广东远峰电子科技股份有限公司 | The communication means of wireless remote control bluetooth earphone, communication system and helmet interactive system |
| CN208158895U (en) * | 2018-05-03 | 2018-11-27 | 深圳市晨讯达科技有限公司 | A kind of PTT transmitter based on intercom, Bluetooth adapter association system |
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