CN109391285A - A kind of multiband police service converged communication system - Google Patents
A kind of multiband police service converged communication system Download PDFInfo
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- CN109391285A CN109391285A CN201811245073.1A CN201811245073A CN109391285A CN 109391285 A CN109391285 A CN 109391285A CN 201811245073 A CN201811245073 A CN 201811245073A CN 109391285 A CN109391285 A CN 109391285A
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- audio
- central side
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- platform
- talk back
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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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3827—Portable transceivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/382—Monitoring; Testing of propagation channels for resource allocation, admission control or handover
-
- 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
- H04W4/08—User group management
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Telephonic Communication Services (AREA)
Abstract
The present invention provides a kind of multiband police service converged communication system, including platform and external equipment, and the external equipment includes central side scheduling handle, multiple user side intercommunication terminals, multiple central side talk back equipments；The platform refers to the server of control centre, and the control for media signaling exchanges；Including audio transceiver module, audio A GC module, Audio Buffer module, Logic control module；User side intercommunication terminal, for the necessary peripheral hardware terminal of present system, what user side intercommunication terminal referred to is traditional simulation numeral intercom, for externally providing PTT trigger button, the user for the center junior point that can be scheduled uses, and can be used cooperatively with corresponding central side talk back equipment；The present invention is used in combination scene and elaborates the effect and mutual working principle of device modules comprehensively, timeliness when preferably resolving control centre to multiple junior's point issuing messages, while the system also improves the portability of system.
Description
Technical field
The present invention relates to field of communication technology, specially a kind of multiband police service converged communication system.
Background technique
Communication be police service commander maincenter, the important component that intercom is communicated as police service, with it is motor-driven, convenient,
The characteristics of secrecy.In police service commander application, different frequency range would generally be used between control centre and scheduling remote subscriber
Intercom group, to the intercom that control centre often has multiple and different frequency ranges occur, and the intercommunication of multiple frequency range groups
The scene that machine uses simultaneously.The usage mode although solves between control centre and multiple junior's points while what is communicated asks
Topic, but there are the following problems:
(1) only one general dispatcher of control centre can not when needing to assume unified command of multiple intercommunication groups
Accomplish being sent in time for each group message.
(2) control centre and multiple intercommunication group communications often match a talk back equipment for each point, cause equipment
Redundancy and portability missing.
Summary of the invention
The purpose of the present invention is to provide a kind of multiband police service converged communication systems, solve proposed in background technique
The problem of, a kind of cluster intercommunication conferencing function is provided, and Optimization Mechanism is concurrently done to Multichannel intercom.
To achieve the above object, the invention provides the following technical scheme: providing a kind of multiband police service converged communication system,
Including platform and external equipment,
The external equipment includes central side scheduling handle, multiple user side intercommunication terminals, multiple central side talk back equipments；
The platform refers to the server of control centre, and the control for media signaling exchanges；Including audio transceiver module,
Audio A GC module, Audio Buffer module, Logic control module；
User side intercommunication terminal is the necessary peripheral hardware terminal of present system, and what user side intercommunication terminal referred to is tradition
Simulation numeral intercom, for externally providing PTT trigger button, the user of the center junior point that can be scheduled is used, energy
It is enough to be used cooperatively with corresponding central side talk back equipment；Intercommunication is established substantially without time delay；
The necessary peripheral hardware terminal of central side talk back equipment and present system, what central side talk back equipment referred to is to pass
The simulation numeral talk back equipment of system, for providing voice input output interface, PTT triggering interface to external；Can with it is corresponding
User side intercommunication terminal is used cooperatively；
Central side dispatches handle, is the necessary peripheral hardware component part of present system.Central side scheduling handle refer to be
The hand-held analog audio signal input-output equipment of one kind, for being connect to external offer voice input output interface, hardware COR triggering
Mouthful；
Audio transceiver module, the audio number for being responsible between platform and central side scheduling handle, central side talk back equipment
According to transmitting-receiving；Audio data road transmitting-receiving based on pcm bus；In receiving side, the voice signal that platform inputs peripheral hardware is according to set
Sample rate, precision carry out sample quantization, obtain digital audio and video signals；In sending side, platform passes through digital-to-analogue to digital audio and video signals
It is converted to analog signal and exports and give intercommunication peripheral hardware；Docking receives audio data and makees volume judgement, i.e. whether right of speech is occupied；
Audio Buffer module, for being responsible for the data progress buffered to audio transceiver module, to audio transceiver module
Received audio data carries out caching process；
Audio A GC module makees automatic gain control to the sound of audio transceiver module for being responsible for；If audio transceiver module
The audio gain of receiving is excessive, then carries out gain reduction, on the contrary then increase；If platform is exported to the audio increasing of audio transceiver module
Benefit is excessive, then carries out gain reduction, on the contrary then increase；Guarantee that input and output dispatch handle, central side talk back equipment to central side
Acoustic gain in OK range, it is undistorted；
In terms of subjective demand, either traditional intercom or digital intercom terminal, input volume pass through mostly
Knob is adjusted, and there is the otherness artificially adjusted；In addition, talk back equipment is as user terminal, the use habit of user, operation side
Formula, use feeling are different, therefore there is also othernesses for the input gain of actual volume.In terms of objective demand, audio signal
It is handled through audio coding decoding chip, there are the limitations of input/output signal amplitude range, if signal is excessive necessarily to lead to distorted signals.
The module is compared by analyzing the gain magnitude of signal with standard gain reference value, obtains feedback regulation amount.It is final to guarantee to use
It is normally undistorted that family inputs volume.
Logic control module, for being responsible for platform feature logical process, real-time detection central side dispatches handle, central side pair
Say the right of speech of equipment；The ride audio data for controlling starting right of speech is transmitted to the ride of vacant right of speech.
Wherein, technical term carries out description below explanation in the present invention:
1, PTT:Push-to-Talk, by saying function.
2, frequency range: using in wireless communication, is very small part in electromagnetic wave frequency range, defines the frequency model of radio wave
It encloses.
3, the control of integrated dispatch control centre (control centre): is carried out to a plurality of route or multiple groups intercommunication user
Center.
4, it dispatches remote subscriber: referring to the distal end intercommunication terminal of each frequency range intercommunication group in control centre.
5, platform: referring to the server of control centre, is responsible for the control exchange of media signaling.
Compared with prior art, beneficial effects of the present invention are as follows:
Present invention is generally directed to digital intercoms to compare delay problem existing for traditional intercom, and it is alert to propose a kind of multiband
Business converged communication system is used in combination scene and elaborates that the effect of device modules and mutual work are former comprehensively
Reason, timeliness when preferably resolving control centre to multiple junior's point issuing messages, while the system are also to a certain degree
On improve the portability of system.
Detailed description of the invention
Fig. 1 is a kind of functional schematic of multiband police service converged communication system of the present invention；
Number mark explanation in figure: central side scheduling handle (1), user side intercommunication terminal (2,4,6), central side intercommunication are set
Standby (3,5,7), the audio transceiver module (8) of platform, audio A GC module (9), Audio Buffer module (10), Logic control module
(11)。
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, to achieve the above object, the invention provides the following technical scheme: a kind of fusion of multiband police service is logical
Letter system, including platform and external equipment, the external equipment include central side scheduling handle 1, multiple user side intercommunication terminals
(2,4,6), multiple central side talk back equipments (3,5,7)；
In present system, user side intercommunication terminal and central side talk back equipment are by group matching, and Fig. 1 show 3 groups, but not
It is limited to 3 groups, refers to multiple groups situation.
The platform refers to the server of control centre, and the control for media signaling exchanges；Including audio transceiver module 8,
Audio A GC module 9, Audio Buffer module 10, Logic control module 11；
User side intercommunication terminal (2,4,6), be present system necessary peripheral hardware terminal, user side intercommunication terminal (2,4,
6) what is referred to is traditional simulation numeral intercom, and for externally providing PTT trigger button, can be scheduled center junior point
User use, can be used cooperatively with corresponding central side talk back equipment (3,5,7)；Intercommunication is established substantially without time delay；
The necessary peripheral hardware terminal of central side talk back equipment (3,5,7) and present system, central side talk back equipment (3,
5,7) what is referred to is traditional simulation numeral talk back equipment, for connecing to external offer voice input output interface, PTT triggering
Mouthful；It can be used cooperatively with corresponding user side intercommunication terminal (2,4,6)；
Central side dispatches handle 1, is the necessary peripheral hardware component part of present system.Central side dispatches what handle 1 referred to
It is a kind of hand-held analog audio signal input-output equipment, for providing voice input output interface, hardware COR triggering to external
Interface；
Audio transceiver module 8, for being responsible between platform and central side scheduling handle 1, central side talk back equipment (3,5,7)
Audio data transmitting-receiving；2 tunnel of audio data transmitting-receiving based on pcm bus；In the voice signal that receiving side, platform input peripheral hardware
Sample quantization is carried out according to set sample rate, precision, obtains digital audio and video signals；In sending side, platform is to digital audio and video signals
It obtains analog signal by digital-to-analogue conversion and exports to give intercommunication peripheral hardware；Docking receives audio data and makees volume judgement, i.e., whether right of speech
It is occupied；
Audio Buffer module 10 receives and dispatches mould to audio to the data progress buffered of audio transceiver module 8 for being responsible for
The received audio data of block 8 carries out caching process；
Audio A GC module 9 makees automatic gain control to the sound of audio transceiver module 8 for being responsible for；If audio receives and dispatches mould
The audio gain that block 8 receives is excessive, then carries out gain reduction, on the contrary then increase；If platform is exported to the sound of audio transceiver module
Frequency gain is excessive, then carries out gain reduction, on the contrary then increase；Guarantee that input and output dispatch handle 1, central side intercommunication to central side
The acoustic gain of equipment (3,5,7) is undistorted in OK range；
In terms of subjective demand, either traditional intercom or digital intercom terminal, input volume pass through mostly
Knob is adjusted, and there is the otherness artificially adjusted；In addition, talk back equipment is as user terminal, the use habit of user, operation side
Formula, use feeling are different, therefore there is also othernesses for the input gain of actual volume.In terms of objective demand, audio signal
It is handled through audio coding decoding chip, there are the limitations of input/output signal amplitude range, if signal is excessive necessarily to lead to distorted signals.
The module is compared by analyzing the gain magnitude of signal with standard gain reference value, obtains feedback regulation amount.It is final to guarantee to use
It is normally undistorted that family inputs volume.
Logic control module 11, for being responsible for platform feature logical process, real-time detection central side dispatches handle 1, center
The right of speech of side talk back equipment (3,5,7)；The ride audio data for controlling starting right of speech is transmitted to the ride of vacant right of speech.
In addition, implementation step is as follows the present invention also provides a kind of implementation method of multiband police service converged communication system:
Scene one: central side dispatches handle speech, and user side intercommunication terminal is listened to
A, central side scheduling handle 1 presses PTT button and starts to make a speech, while generating hardware COR signal；
B, Logic control module 11 detects that COR signal, control audio transceiver module 8 receive the language of central side scheduling handle
Sound, and it is cached to Audio Buffer module 10；
C, the PTT signal of central side talk back equipment (3,5,7) is opened in the control of Logic control module 11, while controlling audio receipts
The audio data of 8 intransit buffering of module is sent out to central side talk back equipment (3,5,7)；
D, after central side talk back equipment (3,5,7) receives PTT signal, it is whole to user side intercommunication to establish the link concurrent sending voice
It holds (2,4,6)；
E, user side intercommunication terminal (2,4,6) receives voice, and is played by loudspeaker；
Scene two: user side intercommunication terminal (2,4,6) speech, central side scheduling handle 1 are listened to
F, user presses the PTT_uA button of user side intercommunication terminal (2,4,6), and starts to talk；
G, user side intercommunication terminal (2,4,6) establishes communication linkage to central side talk back equipment (3,5,7), and transmits language
Sound；
H, central side talk back equipment (3,5,7) receives audio, is transferred to audio transceiver module 8 by audio interface R2,
Data buffer storage is carried out by Audio Buffer module 10 again；
I, Logic control module 11 detects that the right of speech of central side talk back equipment occupies, and controls PTT2 and PTT3 and opens, together
When control R2 received buffered audio data central side scheduling handle 1 and center is sent respectively to by audio interface T1, T3, T4
Side talk back equipment (3,5,7)；
J, central side scheduling handle 1 and central side talk back equipment (3,5,7) receive audio and play；
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (1)
1. a kind of multiband police service converged communication system, which is characterized in that including platform and external equipment, the external equipment packet
Include central side scheduling handle (1), multiple user side intercommunication terminals, multiple central side talk back equipments；
The platform refers to the server of control centre, and the control for media signaling exchanges；Including audio transceiver module (8), sound
Frequency AGC module (9), Audio Buffer module (10), Logic control module (11)；
User side intercommunication terminal, for externally providing PTT trigger button, the user for the center junior point that can be scheduled is used,
It can be used cooperatively with corresponding central side talk back equipment；
Central side talk back equipment, for providing voice input output interface, PTT triggering interface to external；It can be with corresponding use
Family side intercommunication terminal is used cooperatively；
Central side dispatches handle (1), for providing voice input output interface, hardware COR triggering interface to external；
Audio transceiver module (8), the audio for being responsible between platform and central side scheduling handle (1), central side talk back equipment
Data transmit-receive；2 tunnel of audio data transmitting-receiving based on pcm bus；In receiving side, the voice signal that platform inputs peripheral hardware was according to both
Determine sample rate, precision progress sample quantization, obtains digital audio and video signals；In sending side, platform passes through number to digital audio and video signals
Mould, which is converted to analog signal and exports, gives intercommunication peripheral hardware；Docking receives audio data and makees volume judgement, i.e. whether right of speech is occupied；
Audio Buffer module (10) receives and dispatches mould to audio to the data progress buffered of audio transceiver module (8) for being responsible for
The received audio data of block (8) carries out caching process；
Audio A GC module (9) makees automatic gain control to the sound of audio transceiver module (8) for being responsible for；If audio receives and dispatches mould
The audio gain that block (8) receives is excessive, then carries out gain reduction, on the contrary then increase；If platform is exported to audio transceiver module
Audio gain is excessive, then carries out gain reduction, on the contrary then increase；Guarantee that input and output dispatch handle (1), central side to central side
The acoustic gain of talk back equipment is undistorted in OK range；
Logic control module (11), for being responsible for platform feature logical process, real-time detection central side dispatches handle (1), center
The right of speech of side talk back equipment；The ride audio data for controlling starting right of speech is transmitted to the ride of vacant right of speech.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811245073.1A CN109391285B (en) | 2018-10-24 | 2018-10-24 | Multi-frequency-band police service fusion communication system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811245073.1A CN109391285B (en) | 2018-10-24 | 2018-10-24 | Multi-frequency-band police service fusion communication system |
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| Publication Number | Publication Date |
|---|---|
| CN109391285A true CN109391285A (en) | 2019-02-26 |
| CN109391285B CN109391285B (en) | 2021-01-12 |
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ID=65427799
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811245073.1A Active CN109391285B (en) | 2018-10-24 | 2018-10-24 | Multi-frequency-band police service fusion communication system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112770195A (en) * | 2021-02-04 | 2021-05-07 | 北京讯一科技有限公司 | Universal interphone interconnection system and method |
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| CN207251603U (en) * | 2017-08-08 | 2018-04-17 | 陕西中联电科电子有限公司 | Multigroup cluster intercom speech is carried out to the device of intercommunication |
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| CN201919154U (en) * | 2011-01-31 | 2011-08-03 | 北京永新联合电子技术有限公司 | Voice talkback device and voice trunking communication system |
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| CN109391285B (en) | 2021-01-12 |
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