CN207354631U - Using the trunked communication system of single base station multichannel cluster communication agreement - Google Patents
Using the trunked communication system of single base station multichannel cluster communication agreement Download PDFInfo
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- CN207354631U CN207354631U CN201720818737.3U CN201720818737U CN207354631U CN 207354631 U CN207354631 U CN 207354631U CN 201720818737 U CN201720818737 U CN 201720818737U CN 207354631 U CN207354631 U CN 207354631U
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Abstract
The utility model provides a kind of trunked communication system using single base station multichannel cluster communication agreement, the trunked communication system includes base station, IP internets, control and monitor console, dispatching desk, terminal device, and dispatching desk is completed to dispatch the wire command of whole base station all channel by IP internets；Control and monitor console passes through IP internets remote control and the working condition of diagnosing base station；Base station includes more trunk desks and is configured with recording server, and more trunk desks are placed on same place, sets the i.e. different channel number of different transmitting receives frequencies respectively, mutually turns without voice messaging IP between more trunk desks；Terminal device is to include intercom with the cluster mobile station of base station matches.The utility model uses IP frameworks, monitoring system and scheduling system can flexible arrangement, intercom do not have to scanning, it is capable of the automatic distribution channel of rational and orderly, can quickly establishes communication, the probability that co-channel interference occurs is few, communication blockage can be reduced, it can be ensured that communication is reliably connected.
Description
Technical field
A kind of trunked communication system is the utility model is related to, specifically, is related to a kind of using single base station multichannel cluster
The trunked communication system of communication protocol.
Background technology
Trunked communication system generally include group exhale, calling between urgent call, initiation or reception and public network etc. it is more
Kind call function；Meanwhile reliable communication channel, quick foundation call can be provided for trunking terminal user, it is necessary to control
How multiple channel coordination work, realize the distribution between intercom and channel with regard to particularly significant, otherwise will occur to take letter
The problems such as road, co-channel interference, cause communication blockage.
Utility model content
In place of solving above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide one kind using single base station
The trunked communication system and its cluster method of multichannel cluster communication agreement, the defects of to overcome in the prior art.
To achieve these goals, the utility model provides a kind of collection using single base station multichannel cluster communication agreement
Group communication system, the trunked communication system include base station, IP internets, control and monitor console, dispatching desk, terminal device；Wherein, dispatch
Platform is connected to using IP modes in the communication system, and the wire command to whole base station all channel is completed by IP internets
Scheduling, to realize to the exhaling of whole base station all channel, group is exhaled, is generally called and calling of chipping in；Control and monitor console has the function of to write frequency, adopts
It is connected to IP modes in the communication system, passes through IP internets remote control and the working condition of diagnosing base station；Base
Stand including more trunk desks and recording server, full base station all channel is monitored, is recorded, and playback；In described more
Same place is placed on after platform, and different transmitting receives frequencies are set respectively, to form different channel numbers, the more relayings
Mutually turn without voice messaging IP between platform；Terminal device is the cluster mobile station with base station matches, including intercom；Its
In, the channel status of every trunk desk includes idle condition, stand-by state, talking state and maintains talking state；The cluster
After communication system start, synchronizing information is carried out by channel status between more trunk desks, to determine own channel state, acquiescence
The channel of Channel Number values minimum is stand-by state, and other channels are idle condition；Each trunk desk is non-same periodically after synchronization
Step ground sends heartbeat radiofrequency signal, and the trunk desk timing 500ms under stand-by state sends and waits for signaling frame, in an idle state
Trunk desk timing 300ms send idle signaling frame；After intercom start in the trunked communication system, automatically scanning switching
Channel, asks the intercom of communication to be locked under the channel in stand-by state；Channel is changed into talking state from stand-by state：It is right
When saying that machine initiates call, the channel for being currently at stand-by state is changed into talking state, and intercom starts to send voice messaging in
After platform, while next channel in idle condition can be specified to be changed into stand-by state, make the intercom switching for being not involved in call
Onto the new channel in stand-by state；Channel is changed into maintaining talking state from talking state：Trunk desk receives voice letter
After breath, start to forward voice messaging, present channel is changed into maintenance talking state by talking state, and is under present channel
The intercom for participating in communication quickly initiates call at any time；After end of conversation 5s, initiate to converse without intercom, then currently
Channel terminates maintenance state of conversing, and is changed into idle condition or stand-by state.Preferably, the trunked communication system is most branched
Hold 8 channels i.e. 8 trunk desk.Furthermore, it is not necessary that a special control channel, all channels may be used to communicate, wherein
The channel for being in stand-by state at most can only be one.
As the further explanation to trunked communication system described in the utility model, it is preferable that the cluster communication system
After system start, channel status can be first passed through between the trunk desk and carries out synchronizing information, acquiescence own channel state is idle shape
State, then timing 1s send own channel state respectively to IP internets, and compare channel number；Delay 10s judges whether to receive
Home channel status command on network, is arranged to home channel by own channel number if not and changes home channel shape
State；, whereas if receiving, own channel state, the minimum letter of default channel number value are updated by reading home channel state
Road is home channel, and other channels are idle channel.
As the further explanation to trunked communication system described in the utility model, it is preferable that the idle channel is determined
When send idle channel signaling, it is desirable to all intercoms are switched on home channel on each idle channel；The home channel is determined
When send home channel signaling, content is called ID number, the call format conversed on communicating each channel, communication channel number
And the power saving time, when the intercom on home channel has received this ID call-informations, then it is switched to corresponding communication channel
It is upper to participate in communication.
As the further explanation to trunked communication system described in the utility model, it is preferable that trunk desk communication process
In ID number of being exhaled be arranged to：24 on forwarding voice or transmission note data header are exhaled on ID domains, and 12 are used to collect
Group's intercom is exhaled ID number, and 3 are used for new home channel signal, and it is reserved bit to be left 8；Intercom is judging to receive
According to being exhaled ID number to judge whether to match self ID after voice data, it is switched to if mismatching on corresponding home channel.
As the further explanation to trunked communication system described in the utility model, it is preferable that for channel by waiting for
State is changed into talking state, and when intercom is initiating communication on the home channel of base station, the home channel of base station is changed into communicating
Channel, while home channel specifies next idle channel as home channel, by when forwarding voice messaging, using with
The speech communication of Slow Data, carries new home channel number in Slow Data, to make to be not involved in communication other are right
Say that machine-cut is changed on new home channel.
As the further explanation to trunked communication system described in the utility model, it is preferable that for channel by conversing
State is changed into maintaining talking state, and frame, use are maintained when in the 5s after trunk desk forwards voice or short message, continuously transmitting communication
It so that the intercommunication function for being not involved in communication for the entrance that lags is quickly switched on home channel, while also can scan intercom
Judge that the time-out time that some channel whether there is shortens during channel, the time for scanning each channel is 1s.
As the further explanation to trunked communication system described in the utility model, it is preferable that increase connection response frame
And association request frame；Wherein, intercom first sends association request frame before sending voice, waits trunk desk to send connection response frame,
And the time of waiting-timeout response frame is set as 500ms；Trunk desk is after the association request frame of intercom hair is received, current
Wait for and intercom of the connection response frame to request communication, maximum duration 500ms are continuously transmitted after signaling frame is sent；Request
After the intercom of communication receives the connection response frame of trunk desk transmission, start to send voice messaging, trunk desk receives voice
Stop sending connection response frame after data and start to forward voice messaging；Trunk desk is after starting to continuously transmit connection response frame
The voice messaging of any intercom is not received by 500ms, then trunk desk stops sending connection response frame and starts to send logical
Letter maintains frame, maintains call duration time 5s；Trunk desk is under home channel, the voice that can receive and directly forward intercom to send
Information.
In order to realize the another object of the utility model, the utility model, which additionally provides, a kind of utilizes the cluster communication
The cluster communication method of system, the cluster communication method include the following steps：1) after the trunked communication system start, relaying
Synchronizing information is carried out by channel status between platform, to determine own channel state, the channel of default channel number value minimum is to keep
Time state, other channels are idle condition；Each trunk desk non-synchronously sends heartbeat radiofrequency signal periodically after synchronization,
Trunk desk timing 500ms under stand-by state, which is sent, waits for signaling frame, and trunk desk timing 300ms in an idle state sends sky
Not busy signaling frame；2) after the intercom start in the trunked communication system, automatically scanning switching channel, asks the intercom to communicate
It is locked under the channel in stand-by state, and sends association request frame；3) channel is changed into talking state from stand-by state：Intercommunication
When machine initiates call, the channel for being currently at stand-by state is changed into talking state, and intercom starts to send voice messaging to relaying
Platform, while next channel in idle condition can be specified to be changed into stand-by state, the intercom for making to be not involved in call is switched to
On the new channel in stand-by state；4) channel is changed into maintaining talking state from talking state：Trunk desk receives voice letter
After breath, start to forward voice messaging, present channel is changed into maintenance talking state by talking state, and is under present channel
The intercom for participating in communication quickly initiates call at any time；After end of conversation 5s, initiate to converse without intercom, then currently
Channel terminates maintenance state of conversing, and is changed into idle condition or stand-by state.
As the further explanation to cluster communication method described in the utility model, it is preferable that increase connection response frame
And association request frame；Wherein, intercom first sends association request frame before sending voice, waits trunk desk to send connection response frame,
And the time of waiting-timeout response frame is set as 500ms；Trunk desk is after the association request frame of intercom hair is received, current
Wait for and intercom of the connection response frame to request communication, maximum duration 500ms are continuously transmitted after signaling frame is sent；Request
After the intercom of communication receives the connection response frame of trunk desk transmission, start to send voice messaging, trunk desk receives voice
Stop sending connection response frame after data and start to forward voice messaging；Trunk desk is after starting to continuously transmit connection response frame
The voice messaging of any intercom is not received by 500ms, then trunk desk stops sending connection response frame and starts to send logical
Letter maintains frame, maintains call duration time 5s；Trunk desk is under home channel, the voice that can receive and directly forward intercom to send
Information.
As the further explanation to cluster communication method described in the utility model, it is preferable that more intercoms are same
When one channel initiates call at the same time, an intercom, which is established, to be conversed successfully, and whether other intercoms meeting automatic decisions are retained in original
There is channel to participate in communication or automatically switch to other channel re-requests foundation calls, when all channels are all occupied, meeting
Rest on the channel of last request call and wait home channel.
The multi-channel digital trunked communication system of the utility model is covered mainly for an individual region.System is adopted
With IP frameworks, monitoring system and scheduling system can flexible arrangement, system group network is simple, and construction cost is low, feature-rich, and communication is built
Vertical speed is fast, there is provided the function of interconnecting with other systems.Special control channel is not required in whole group system, most branched
8 channels are held, each channel transceiver frequency is different, and all channels may be used to communicate, and all interchannels are mutually clear each
From channel status, be capable of the automatic distribution channel of rational and orderly.Intercom does not have to scanning, and can automatically switch channel, can be fast
Communication is stood in run-up, and the probability that co-channel interference occurs is few, it is possible to reduce communication blockage, it can be ensured that communication is reliably connected.It is applicable in
In the region that number of users is more, packet is more, portfolio is big.
Brief description of the drawings
Fig. 1 is the structure diagram of the trunked communication system of the utility model.
Embodiment
In order to further appreciate that the structure of the utility model, feature and other purposes, preferably implement in conjunction with appended
Example be accompanied by attached drawing describe in detail it is as follows, this attached drawing embodiment described is merely to illustrate the technical solution of the utility model, and
Non-limiting the utility model.
As shown in Figure 1, Fig. 1 is the structure diagram of the trunked communication system of the utility model；The trunked communication system
Including base station, IP bearer networks, control and monitor console, dispatching desk, terminal device；Wherein, dispatching desk, described lead to is connected to using IP modes
In letter system, complete to dispatch the wire command of whole base station all channel by IP bearer networks, whole base station is believed entirely with realizing
The exhaling of road, group is exhaled, is generally called and calling of chipping in；Control and monitor console, has the function of to write frequency, and the communication is connected to using IP modes
In system, pass through IP bearer networks remote control and the working condition of diagnosing base station；Base station includes more trunk desks and recording takes
Business device, recording server can monitor full base station all channel, be recorded, and playback；The more trunk desks are placed on together
One place, and different transmitting receives frequencies are set respectively, to form different channel numbers, to realize that forming single base station multichannel leads to
Letter system, mutually turns without voice messaging IP between the more trunk desks；Preferably, the communication system could support up 8 letters
Road i.e. 8 trunk desk, it is not necessary to which a special control channel, all channels may be used to communicate；Terminal device, is and base
The cluster mobile station that station matches, including intercom.The channel status of every trunk desk includes idle condition, stand-by state, leads to
Speech phase and maintenance talking state, wherein stand-by state is holding state, and the intercom not communicated is under home channel,
Calling is initiated at any time；Wherein, the channel status of every trunk desk includes idle condition, stand-by state, talking state and remains logical
Speech phase；After the trunked communication system start, synchronizing information is carried out by channel status between more trunk desks, to determine certainly
Body channel status, the minimum channel of default channel number value is stand-by state, and other channels are idle condition, are waited for wherein being in
The channel of state at most can only be one；Each trunk desk non-synchronously sends heartbeat radiofrequency signal periodically after synchronization, is waiting for
Trunk desk timing 500ms under state, which is sent, waits for signaling frame, and trunk desk timing 300ms in an idle state sends idle letter
Make frame；After intercom start in the trunked communication system, automatically scanning switching channel, asks the intercom of communication to be locked in
Under channel in stand-by state；Channel is changed into talking state from stand-by state：When intercom initiates call, it is currently at and waits for
The channel of state is changed into talking state, and intercom starts to send voice messaging to trunk desk, while can specify next in sky
The channel of not busy state is changed into stand-by state, and the intercom for making to be not involved in call is switched on the new channel in stand-by state；
Channel is changed into maintaining talking state from talking state：After trunk desk receives voice messaging, start to forward voice messaging, current letter
Road is changed into maintenance talking state by talking state, and it is fast at any time to be in the intercom for participating in communicating under present channel
Speed initiates call；After end of conversation 5s, initiate to converse without intercom, then present channel terminates maintenance state of conversing, and is changed into
Idle condition or stand-by state.
Each trunk desk has a Channel Status Table, to preserve the channel condition information of other trunk desks, the cluster
After communication system start, the synchronization of network channel status information can be first carried out between the trunk desk, each trunk desk has one
Channel Status Table, acquiescence own channel state is idle condition, then timing 1s sends own channel shape respectively to IP internets 2
State, and compare channel number；Delay 10s judges whether to receive the home channel state table order on network, will be certainly if not
Body channel number is arranged to home channel and changes home channel state table；, whereas if receive, by reading home channel
State table updates own channel state, and the small channel of default channel number is home channel, and other channels are idle channel, so just
In mutually renewal channel status, the state of each channel is so clear that, be lost condition, or idle condition,
Either stand-by state either talking state or malfunction, also allows for from when being changed into idle condition from stand-by state,
It is stand-by state that quickly can reasonably specify subsequent channels.The idle channel timing sends idle channel signaling, it is desirable to each
All intercoms are switched on home channel on idle channel；The home channel timing sends home channel signaling, and content is
Called ID number, the call format conversed on communicating each channel, communication channel number and power saving time, when on home channel
Intercom when having received this ID call-informations, then be switched in corresponding communication channel and participate in communication.Trunk desk communication process
In ID number of being exhaled be arranged to：24 on forwarding voice or transmission note data header are exhaled on ID domains, and 12 are used to collect
Group's intercom is exhaled ID number, and 3 are used for new home channel signal, and it is reserved bit to be left 8；Intercom is judging to receive
According to being exhaled ID number to judge whether to match self ID after voice data, it is switched to if mismatching on corresponding home channel.
Talking state is changed into from stand-by state for channel, when intercom is initiating communication on the home channel of base station,
The home channel of base station is changed into communication channel, while home channel specifies next idle channel as home channel, by turning
When sending out voice messaging, using the speech communication with Slow Data, new home channel number is carried in Slow Data, to
Other intercoms for making to be not involved in communication are switched on new home channel.
Maintenance talking state is changed into from talking state for channel, the 5s after trunk desk forwards voice or short message
It is interior, continuously transmit communication and maintain frame, home channel is quickly switched into the intercommunication function for being not involved in communication for the entrance that makes to lag
On, while the time-out time that can also make intercom judge that some channel whether there is when scanning channel shortens, and scans each letter
The time in road is 1s.
The trunked communication system also increases connection response frame and association request frame；Wherein, before intercom transmission voice first
Association request frame is sent, waits trunk desk to send connection response frame, and set the time of waiting-timeout response frame as 500ms；In
After platform after the association request frame of intercom hair is received, connection response is continuously transmitted in current waiting for after signaling frame is sent
Intercom of the frame to request communication, maximum duration 500ms；The connection that the intercom of request communication receives trunk desk transmission is rung
After answering frame, start to send voice messaging, trunk desk stops sending connection response frame and starts to forward language after receiving voice data
Message ceases；Trunk desk is not received by the voice letter of any intercom in the 500ms after starting to continuously transmit connection response frame
Breath, then trunk desk stopping, which sends connection response frame and starts to send to communicate, maintains frame, maintenance call duration time 5s；Trunk desk is being waited for
Under channel, the voice messaging that can receive and directly forward intercom to send.
The utility model additionally provides a kind of cluster communication method using the trunked communication system, and the cluster leads to
Letter method includes the following steps：
Step 1)：After the trunked communication system start, synchronizing information is carried out by channel status between trunk desk, with
Determine own channel state, the minimum channel of default channel number value is stand-by state, and other channels are idle condition；After synchronization
Each trunk desk non-synchronously sends heartbeat radiofrequency signal periodically, and the trunk desk timing 500ms under stand-by state sends and keeps
Signaling frame is waited, trunk desk timing 300ms in an idle state sends idle signaling frame；Send the cycle of heartbeat radiofrequency signal
Short, the delay that such intercom establishes call is lacked, and the intercom of the entrance that also allows for lagging lock channel or participates in call as soon as possible.
Specifically, it is idle condition to give tacit consent to own channel state after trunk desk start, itself is sent toward network IP distributing lists
Channel status, delay 10s judge whether to receive the home channel state table order on network, letter are waited for if be not received by
Road state table order, then be arranged to stand-by state by own channel and change home channel state table；Kept, whereas if receiving
Channel Status Table order is waited, then updates own channel state by reading home channel state table.Kept between network if multiple
It is stand-by state to wait channel command broadcast then to determine the small channel of Channel Number values, and the big channel of Channel Number values is idle condition.
Trunk desk timing in an idle state sends idle channel signaling, it is desirable to all intercommunication machine-cuts on each idle channel
Change on home channel.Send signaling to send by ACK frames, channel information is included in calledID.The leading frame number is set to be
0, DPMR_M_V_F_E 0x18, wherein V version numbers are 11, and it is scanning frame, power saving frame, idle switch frame to represent present frame；So
DPMR_ACK orders are sent afterwards, and home channel number numbering is 0~7 expression channel 1~8.CalledID is by 24bit binary forms
Show, as shown in table 1：
Table 1
Trunk desk timing under stand-by state sends home channel signaling, and content is to converse on communicating each channel
Called ID number, call format, communication channel number and power saving time.When the intercom on home channel has received this ID calls
During information, then it is switched in corresponding communication channel and participates in communication.Signaling is to send Short by SEND_AD orders
Appended Data, valid data length are arranged to 0x12, and content is that (sending time is head frame+Appended Data+ tail frames
220ms).Home channel Appended Data data frame contents are as shown in table 2：
Table 2
Step 2)：After intercom start in the trunked communication system, automatically scanning switching channel, and it is locked in place
Under the channel of stand-by state.
The ID number of intercom under normal mode still retains 24, and under cluster mode, the ID number of intercom is conventional
Low 12 under pattern, low 12 are used to be exhaled ID number, and 3 No. BCD, 1000 intercom ID numbers, 3 are used for communication channel
Number, 1 is used for call format, each channel information totally 16 2 bytes.Single cluster of base stations shares 8 channels, works as home channel
When taking 1 channel, be up to 7 communication channels.Therefore home channel signaling at most only sends 7 communication channel informations, only
Need 14 bytes.The work of remaining 7 channel can be sent at the same time in original Short Appended Data signalings
Situation.
The ID that exhaled in trunk desk communication process is set：24 on forwarding voice or transmission note data header are exhaled
On ID domains, 12 are exhaled ID number for cluster intercom, and 3 are used for new home channel signal, and it is reserved bit to be left 8.
Intercom, according to being exhaled ID to judge whether to match self ID, phase is switched to if mismatching after judgement receives voice data
On the home channel answered.CalledID is by 24bit binary representations at this time, as shown in table 3：
Table 3
Intercom operating mode is divided into cluster mode and normal mode, and voice messaging is received under cluster mode, judges
Whether called ID matches self ID, is that low 12 bit for taking called ID is converted to 3 binary-coded decimals, and minimum 3 with self ID
Position binary-coded decimal is compared.Judge whether called ID matches self ID in normal mode, be with complete binary-coded decimal or binary system into
Row compares.Called ID when PTT sends voice is pressed under cluster mode to set, with normal mode, such as called ID number
For 1667112, then it is 1667112 to set called ID number.
Step 3)：Channel is changed into talking state from stand-by state：When intercom initiates call, stand-by state is currently at
Channel is changed into talking state, and intercom starts to send voice messaging to trunk desk, while can specify and next be in idle condition
Channel be changed into stand-by state, the intercom for making to be not involved in call is switched on the new channel in stand-by state.
Group system supports individual calling, and group is exhaled, and is generally called, wherein generally calling the highest priority of call, has intercom to initiate complete
When calling through letter, all intercoms, which can switch to be locked in, to be generally called in communication channel, including be in the channel of talking state also can horse
Upper stopping talking state, sending idle signaling frame makes the intercom under present channel be switched to generally call and participate in call under channel.
When intercom is initiating communication on the home channel of base station, the home channel of base station is changed into communication channel, at the same time
Home channel specifies next idle channel as home channel, by when forwarding voice messaging, using with Slow Data's
Speech communication, carries new home channel number in Slow Data, to make other intercoms for being not involved in communication be switched to newly
Home channel on.M in DPMR_M_V_F_E is 001, and home channel number numbering is 0~7 to represent channel 1~8, Slow
Data 18bit binary representations, as shown in table 4：
Table 4
Step 4)：Channel is changed into maintaining talking state from talking state：After trunk desk receives voice messaging, start to forward
Voice messaging, present channel are changed into maintenance talking state by talking state, and are in pair that communication is participated under present channel
Say that machine quickly initiates call at any time；After end of conversation 5s, initiate to converse without intercom, then present channel terminates to converse
Maintenance state, is changed into idle condition or stand-by state.
When in the 5s after trunk desk forwards voice or short message, continuously transmitting communication maintenance frame, to make the entrance that lags
The intercommunication function for being not involved in communication be quickly switched on home channel, while intercom is judged certain when scanning channel
The time-out time that a channel whether there is shortens, and the time for scanning each channel is 1s.Home channel number numbering is 0~7 expression
Channel 1~8.Send signaling and ACK is sent by DPMR_ACK frames, channel information is included in calledID.Leading frame number is set
It is 0x18 or 0x1a for 0, DPMR_M_V_F_E, wherein V version numbers are 11, F is that group is exhaled for 0, is individual calling for 1.Wherein ownID
It is complete 7 BCD codings of communication calling party.CalledID is by 24bit binary representations at this time, as shown in table 5：
Table 5
Each maintenance frame period is 200ms, and it is 5s to maintain frame that it is most long to send total time, that is, shares 25 maintenance frames, each
Maintaining frame to have numbering a Fnum, Fnum is down successively decreased since 25.Frame number is maintained to be less than or equal to 1 when intercom receives
When initiate a switch to next home channel number.When received maintenance frame number is more than 1, whether intercom need to judge ID itself
It is consistent with minimum 3 binary-coded decimals of the ownID or calledID of this ACK frame, if consistent explanation is to communicate participant not in itself
Switch channel, otherwise be not that communication participant is then switched to corresponding home channel number.Increase maintains frame number, is to make participation
The intercom of communication can be quickly switched on new home channel in advance in end of conversation holding 5s is.
Intercom is sent before voice is sent, and is sent signaling and is sent ACK by DPMR_ACK frames, and it is 0 to set leading frame number,
DPMR_M_V_F_E is 0x0 or 0x2 (wherein V version numbers exchange for 00 i.e. DPMR standards, and F is that group is exhaled for 0, are individual callings for 1),
OwnID is self ID, and calledID is called ID.
For reduce co-channel interference occur probability, it is ensured that communication is reliably connected, intercom send voice before first send connect
Claim frame, wait trunk desk transmission connection response frame, and the time for setting waiting-timeout response frame are connect as 500ms, there are following 4 kinds
Situation：
(1) such as intercom confiscates response frame in 500ms, then intercom continuously sends very brief drop drop prompting sound, directly
Unclamped to PTT buttons, to indicate that communication is busy (may have multiple users at the same time by say), user can first unclamp PTT, lead to again later
Letter.
(2) as intercom received in 500ms response frame be intended for self ID (by compare the ownID of response frame with
Whether self ID is consistent), then intercom sends the drop drop prompting of 100ms or so, and instruction can start to talk；
(3) such as intercom, received response ACK frames are not intended for self ID in 500ms, but self ID is communication
Participant (exhales sign and calledID to judge) by the single group in MVF, then intercom continuously sends very brief drop drop prompting sound,
Until PTT buttons unclamp, to indicate that communication is busy (may have other users to call itself), user can first unclamp PTT, later again
Communication.
(4) such as intercom, received response ACK frames are not intended for self ID in 500ms, and self ID is not logical
Believe participant, then intercom is switched to new home channel number according to the instruction of this ACK frame and resends ACK frames, reset etc.
Time-out time 500ms to be responded, and according to as above cycle criterion, unless PTT buttons are decontroled.It is being switched to new home channel
When, it need to judge whether the home channel number and channel number residing for current intercom are consistent, illustrate that remaining channel is all located if consistent
In communications status, intercom should continuously send very brief drop drop prompting sound at this time, until PTT buttons unclamp, to indicate that communication is busy
(all channels are all occupied), user can first unclamp PTT, communicate again later.
Trunk desk continuously transmits after the association request frame of intercom hair is received in current waiting for after AD frames are sent
Intercom (most long 500ms) of the connection response frame to request communication, asks the intercom of communication to receive the company of trunk desk transmission
After connecing response frame, start to send voice messaging, trunk desk stops sending connection response frame and starts to turn after receiving voice data
Send out voice messaging.As trunk desk is not received by the language of this intercom in the 500ms after starting to continuously transmit connection response frame
Message ceases, then trunk desk stopping sends connection response frame and cuts off the communication connection request of this intercom, and starts to send communication dimension
Frame is held, maintains call duration time 5s.Send signaling and ACK is sent by DPMR_ACK frames, channel information is included in calledID.If
Put leading frame number be 0, DPMR_M_V_F_E be 0x18 or 0x1a (wherein V version numbers are 11 to be formulated by manufacturer, and F is group for 0
Exhale, be individual calling for 1).The ownID of connection response frame is the ID (7 complete BCD codings) for the intercom for asking connection communication,
It is as shown in table 6 that calledID includes information：
Table 6
When same channel initiates call at the same time, an intercom is established to be conversed successfully more intercoms, other intercoms
Whether meeting automatic decision, which is retained in original channel, participates in communication or automatically switches to other channel re-requests foundation calls, when
When all channels are all occupied, it can rest on the channel of last request call and wait home channel.
It is to be understood that above-mentioned utility model content and embodiment are intended to prove that the utility model provides skill
The practical application of art scheme, should not be construed as the restriction to scope of protection of the utility model.Those skilled in the art are in this practicality
In new spirit and principle, when can various modifications may be made, equivalent substitution or improvement.The scope of protection of the utility model is with appended power
Subject to sharp claim.
Claims (7)
- A kind of 1. trunked communication system using single base station multichannel cluster communication agreement, it is characterised in that the cluster communication System includes base station (1), IP internets (2), control and monitor console (3), dispatching desk (4), terminal device (5)；Wherein,Dispatching desk (4), is connected to using IP modes in the communication system, is completed by IP internets (2) to whole base station The wire command scheduling of all channel, to realize to the exhaling of whole base station all channel, group is exhaled, is generally called and calling of chipping in；Control and monitor console (3), has the function of to write frequency, is connected to using IP modes in the communication system, remote by IP internets (2) Process control and the working condition of diagnosing base station；Base station (1) includes more trunk desks and recording server, and full base station all channel is monitored, is recorded, and playback；Institute State more trunk desks and be placed on same place, and different transmitting receives frequencies are set respectively, it is described to form different channel numbers Mutually turn without voice messaging IP between more trunk desks；Terminal device (5), is the cluster mobile station to match with base station (1), including intercom；Wherein, the channel status of every trunk desk includes idle condition, stand-by state, talking state and maintains talking state；Institute After stating trunked communication system start, synchronizing information is carried out by channel status between more trunk desks, to determine own channel shape State, the minimum channel of default channel number value is stand-by state, and other channels are idle condition；Each trunk desk cycle after synchronization Ground non-synchronously sends heartbeat radiofrequency signal；Trunk desk timing 500ms under stand-by state, which is sent, waits for signaling frame, in the free time Trunk desk timing 300ms under state sends idle signaling frame；After intercom start in the trunked communication system, automatically scanning switching channel, asks the intercom of communication to be locked in Under channel in stand-by state；Channel is changed into talking state from stand-by state：When intercom initiates call, the channel for being currently at stand-by state is changed into logical Speech phase, intercom starts to send voice messaging to trunk desk, while next channel in idle condition can be specified to be changed into Stand-by state, the intercom for making to be not involved in call are switched on the new channel in stand-by state；Channel is changed into maintaining talking state from talking state：After trunk desk receives voice messaging, start to forward voice messaging, when Preceding channel is changed into maintenance talking state by talking state, and is in the intercom for participating in communicating under present channel and all may be used at any time Conversed with quick initiation；After end of conversation 5s, initiate to converse without intercom, then present channel terminates maintenance state of conversing, and turns It is changed into idle condition or stand-by state.
- 2. trunked communication system as claimed in claim 1, it is characterised in that after the trunked communication system start, in described Synchronizing information is carried out after channel status can be first passed through between platform, acquiescence own channel state is idle condition, then timing 1s is to IP Internet (2) sends own channel state respectively, and compares channel number；Delay 10s judges whether to receive waiting on network Channel status order, is arranged to home channel by own channel number if not and changes home channel state；, whereas if having Receiving, update own channel state by reading home channel state, the minimum channel of default channel number value is home channel, Other channels are idle channel.
- 3. trunked communication system as claimed in claim 2, it is characterised in that the idle channel timing sends idle channel letter Order, it is desirable to which all intercoms are switched on home channel on each idle channel；The home channel timing sends home channel letter Order, content are called ID number, the call format conversed on communicating each channel, communication channel number and power saving time, when When intercom on home channel has received this ID call-informations, then it is switched in corresponding communication channel and participates in communication.
- 4. trunked communication system as claimed in claim 3, it is characterised in that the ID number of being exhaled in trunk desk communication process is set For：24 on forwarding voice or transmission note data header are exhaled on ID domains, and 12 are exhaled ID for cluster intercom Number, 3 are used for new home channel signal, and it is reserved bit to be left 8；Intercom is after judgement receives voice data according to quilt Exhale ID number to judge whether to match self ID, be switched to if mismatching on corresponding home channel.
- 5. trunked communication system as claimed in claim 1, it is characterised in that shape of conversing is changed into from stand-by state for channel State, when intercom is initiating communication on the home channel of base station, the home channel of base station is changed into communication channel, while waits for letter Dow Jones index fixs an idle channel as home channel, by when forwarding voice messaging, being led to using the voice with Slow Data News, carry new home channel number in Slow Data, to make other intercoms for being not involved in communication be switched to new wait for On channel.
- 6. trunked communication system as claimed in claim 1, it is characterised in that be changed into maintaining to converse from talking state for channel State, when in the 5s after trunk desk forwards voice or short message, continuously transmitting communication maintenance frame, to make to lag entrance not The intercommunication function for participating in communication is quickly switched on home channel, while intercom is judged some letter when scanning channel The time-out time that road whether there is shortens, and the time for scanning each channel is 1s.
- 7. the trunked communication system as described in claim 1~6 is any, it is characterised in that further include increase connection response frame and Association request frame；Wherein, intercom first sends association request frame before sending voice, waits trunk desk to send connection response frame, and The time of waiting-timeout response frame is set as 500ms；Trunk desk is kept after the association request frame of intercom hair is received in current Wait and intercom of the connection response frame to request communication, maximum duration 500ms are continuously transmitted after signaling frame is sent；Request is logical After the intercom of letter receives the connection response frame of trunk desk transmission, start to send voice messaging, trunk desk receives voice number Connection response frame is sent according to rear stopping and starts to forward voice messaging；Trunk desk is after starting to continuously transmit connection response frame The voice messaging of any intercom is not received by 500ms, then trunk desk stops sending connection response frame and starts to send logical Letter maintains frame, maintains call duration time 5s；Trunk desk is under home channel, the voice that can receive and directly forward intercom to send Information.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108650637A (en) * | 2018-05-14 | 2018-10-12 | 陈学智 | A kind of small cluster method of construction of intercommunication of analog- and digital- DMR compatibilities |
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| Publication number | Priority date | Publication date | Assignee | Title |
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