CN109831266A - The communication means of integrated communication equipment - Google Patents
The communication means of integrated communication equipment Download PDFInfo
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- CN109831266A CN109831266A CN201811641969.1A CN201811641969A CN109831266A CN 109831266 A CN109831266 A CN 109831266A CN 201811641969 A CN201811641969 A CN 201811641969A CN 109831266 A CN109831266 A CN 109831266A
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Abstract
The present invention provides a kind of communication means of integrated communication equipment, which is characterized in that the communication means uses ST-BUS bus；The ST-BUS bus transfer: frame synchronizing signal, bit clock signal, serial data signal.Invention provides for each equipment only to occupy bus in the time slot of distribution, to discharge bus in other time slots, solves the disadvantage that parallel bus is various and it is compatible to be not easy, is not easy to transplant.
Description
Technical field
The present invention relates to fields of communication technology, and in particular, to the communication means of integrated communication equipment.
Background technique
Integrated communication equipment be based on VPX framework highly integrated wide and narrow strip transmission means (defend logical, Qu Kuan, ultrashort wave,
Optical transmitter and receiver is passed) and routing and switching function terminal device.It is mainly used for constructing tactical communication system, inside function mould
Block includes: to defend logical module, the wide module in area, ultrashort wave module, optical transmitter and receiver module, main control module, power module etc..
In view of Special Interface Chip is designed for a certain or several standard interfaces, total interface can no longer meet
Standard, the especially requirement of new interface standard.As communication system becomes increasingly complex, which is often eliminated
Or the trend being replaced.In order to simplify the upgrading that the configurable flexibility of equipment, increase system is also convenient for system, communication equipment
Modular design method is taken extensively.Each functional module can be connected collaborative work by modular design method,
No matter module function and external interface how, can be conveniently embedded in specific communication system.
Summary of the invention
For the defects in the prior art, the object of the present invention is to provide a kind of communication means of integrated communication equipment.
A kind of communication means of the integrated communication equipment provided according to the present invention, the communication means are total using ST-BUS
Line；
The ST-BUS bus transfer: frame synchronizing signal, bit clock signal, serial data signal.
Preferably, the frame synchronizing signal includes: type 0 and Class1 both modes；
The lock-out pulse of type 0 appeared in the bit clock period that frame starts；
The lock-out pulse of Class1 needs to keep a complete slot cycle, i.e. 8 bit clock periods.
Preferably, the ST-BUS bus structures use 4 kinds of standard frequencies: 16.432MHz, 8.192MHz, 4.096MHz,
2.048MHz；
Any frequency in 4 kinds of standard frequencies is used as the internal clocking of component；
The pulse period of the frame synchronizing signal is 125us.
Preferably, the frame synchronizing signal is repeated with the frequency of 8KHz；
Using time-division multiplexing (TDM), when ST-BUS bus uses the standard frequency of 8.192MHz, by frame synchronizing signal
128 time slots are divided into, the transmission rate of each time slot is 64Kbps, and total rate of every serial data stream is 8.192Mbps.
Preferably, the frame synchronizing signal is a negative pulse, it was only occurred in a bit clock period of frame beginning,
Each feature board is using frame synchronizing signal as reference signal in ST-BUS bus, and determines a frame data stream according to frame synchronizing signal
Receive or send the time.
Preferably, the ST-BUS bus includes: that this two sets of primary ST-BUS_1 bus and spare ST-BUS_2 bus are total
Line uses spare ST-BUS_2 bus using primary ST-BUS_1 bus, and in the failure of primary ST-BUS_1 bus；Feature board
DATA_IN data line is shared in two sets of buses, DATA_IN signal sequence should keep same with the timing of currently used bus
Step.
Preferably, the ST-BUS bus provides that each equipment only occupies bus in the time slot of distribution, at other
Gap discharges bus.
Compared with prior art, the present invention have it is following the utility model has the advantages that
1, invention provides for each equipment only to occupy bus in the time slot of distribution, to discharge always in other time slots
Line solves the disadvantage that parallel bus is various and it is compatible to be not easy, is not easy to transplant.
2, the present invention has very strong versatility using ST-BUS, it may be convenient to realize the interaction between data.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon:
The ST-BUS time diagram that Fig. 1 is the Bus Speed that the embodiment of the present invention 1 provides when being 8.192Mbps；
Fig. 2 is the signal differential process schematic that the embodiment of the present invention 1 provides；
Fig. 3 is the signal solution difference process schematic that the embodiment of the present invention 1 provides；
Fig. 4 is the specific agreement schematic diagram of ST-BUS for the feature board that the embodiment of the present invention 3 provides；
Fig. 5 is data interaction schematic illustration between the feature board that the embodiment of the present invention 3 provides.
Fig. 6 is the ST-BUS interface signal definition that the embodiment of the present invention 1 provides
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, several changes and improvements can also be made.These belong to the present invention
Protection scope.
A kind of communication means of the integrated communication equipment provided according to the present invention, the communication means are total using ST-BUS
Line；
The ST-BUS bus transfer: frame synchronizing signal, bit clock signal, serial data signal.
Specifically, the frame synchronizing signal includes: type 0 and Class1 both modes；
The lock-out pulse of type 0 appeared in the bit clock period that frame starts；
The lock-out pulse of Class1 needs to keep a complete slot cycle, i.e. 8 bit clock periods.
Specifically, the ST-BUS bus structures use 4 kinds of standard frequencies: 16.432MHz, 8.192MHz, 4.096MHz,
2.048MHz；
Any frequency in 4 kinds of standard frequencies is used as the internal clocking of component；
The pulse period of the frame synchronizing signal is 125us.
Specifically, the frame synchronizing signal is repeated with the frequency of 8KHz；
Using time-division multiplexing (TDM), when ST-BUS bus uses the standard frequency of 8.192MHz, by frame synchronizing signal
128 time slots are divided into, the transmission rate of each time slot is 64Kbps, and total rate of every serial data stream is 8.192Mbps.
Specifically, the frame synchronizing signal is a negative pulse, it was only occurred in a bit clock period of frame beginning,
Each feature board is using frame synchronizing signal as reference signal in ST-BUS bus, and determines a frame data stream according to frame synchronizing signal
Receive or send the time.
Specifically, the ST-BUS bus includes: that this two sets of primary ST-BUS_1 bus and spare ST-BUS_2 bus are total
Line uses spare ST-BUS_2 bus using primary ST-BUS_1 bus, and in the failure of primary ST-BUS_1 bus；Feature board
DATA_IN data line is shared in two sets of buses, DATA_IN signal sequence should keep same with the timing of currently used bus
Step.
Specifically, the ST-BUS bus provides that each equipment only occupies bus in the time slot of distribution, at other
Gap discharges bus.
Below by preference, the present invention is more specifically illustrated:
Embodiment 1:
The defect of the present invention in view of the above technology proposes proprietary ST-BUS (the i.e. Serial of integrated communication equipment
Telecom BUS, serial communication bus) agreement, it simplifies the communication between disparate modules, is a kind of synchronous time division multiplexing
Serial bus structure, this bus structures are designed initially and are the access criteria in order to meet telecommunications network, so as in same standard
Under signal is converted, realize making full use of for line resource, the abundant body of system designer can be made using ST-BUS structure
The flexibility and superiority of modularized design can be arrived.
It is now used in the research and development of military communication equipment, realizes to the unified standard of the multiline messages such as audio, data, make
Each functional module cooperates.ST-BUS puppy parc will simply be introduced below, for integrated communication equipment, to it
Proprietary ST-BUS is illustrated, and on the basis of the bus timing, realizes the data interaction between control board and other function plate.
The proprietary ST-BUS that integrated communication equipment uses is made of a plurality of serial data stream, the transmission speed of every data stream
Rate is 8.192Mbps.The synchronization signal of data transmission is provided by frame pulse signal, it is repeated with the frequency of 8KHz, is utilized
Time-division multiplexing (TDM) can be divided into 128 time slots, and the transmission rate of each time slot is 64Kbps, then every it is serial
Total rate of data flow is 8.192Mbps, as shown in Figure 1:
Frame-synchronizing impulse keeps low level in first rising edge clock that 0 time slot starts.In addition, positioning and the number of time slot
It employs counters to realize herein according to the positioning of position.Data on ST-BUS when transmitting, since shake and time delay bring influence,
It will lead to the erroneous transmissions of data, therefore, using different clock edges, sampled at the data most stable of moment, Ke Yi
The error for reducing data transmission to the full extent, the rising edge using transmitting terminal in clock send data, and receiving end is in clock
Failing edge adopts data, can achieve optimal anti-jitter effect.
This special bus structures of ST-BUS keep it mutually compatible with rate needed for some narrow band transmissions.Multichannel 64Kbps
Time slot may make up the channel of higher rate, meet the requirement of more high data rate.Although ST-BUS is between component
Simple interface, but it can be used in the interconnection of equipment room, provide consistent flexible interface mode to component.
For the reliability transmission of data, using the special mode bus of ST-BUS, which includes primary ST-BUS_1
With spare ST-BUS_2, primary ST-BUS_1 is used under normal circumstances, and spare ST-BUS_2 is used when primary failure.Feature board exists
DATA_IN data line is shared in two sets of buses, DATA_IN signal sequence should be synchronous with the holding of the timing of currently used bus.
The occurrence of this mode avoids multiple-input multiple-output i.e. bus is seized, it is specified that each equipment only distribution when
Bus is occupied in gap, to discharge bus in other time slots.And the transmission of bus is needed by backboard, to guarantee signal integrity
Design, need to accordingly convert signal, and TTL signal is converted to the LVDS signal of suitable backboard transmission.ST-BUS interface letter
Number definition is as shown in Figure 6.
As shown in Fig. 6, ST-BUS clock signal and frame pulse signal are all differential signals.In actual interactive process
In, a unipolar clock signal and frame pulse signal are generated inside control board first, by difference block, obtains attached drawing 6
Shown in differential signal, specific implementation process it is as shown in Fig. 2:
Then the differential signal is sent to radio station plate and terminal plate respectively by control board, by the difference block on feature board
Solution difference is carried out, unipolar signal is obtained, realizes that process is as shown in Fig. 3:
ST-BUS differential signal level standard is 3.3V EIA-899M-LVDS, and characteristic impedance is 100 Ω ± 10%, difference
Signal does not design build-out resistor on feature board；Single-ended signal level standard be 3.3V_LVTTL, characteristic impedance be 65 Ω ±
10%, single-ended signal should concatenate 10 Ω resistance in each function connector for substrate side.
ST-BUS transmits bus as a main information between communication equipment, and the information such as data, speech may be implemented
Interaction, uniformly provide clock and synchronization signal by main control unit, other function unit receives and to use this signal to carry out corresponding
Operation, to guarantee that the synchronous of whole system carries out.
In the design, inside communication equipment main control unit provides clock and synchronization signal to other function unit, as master
End works in aggressive mode, and radio station plate and terminal plate are used as from end and work in Passive Mode, using ST-BUS backboard transmittability,
It is attached between main control unit and other function unit by backboard.
After radio station plate and terminal plate receive both signals, according to respective agreement, corresponding time slot is sent to control board
Data (ID number including feature board), by obtaining ID number, (under default situations, the ID number of terminal is " 1 " to control board, radio station
ID number is " 3 "), identify corresponding feature board.
The data interaction between feature board may be implemented by the above process, moreover, with ST-BUS interface feature board it
Between can be in communication with each other, the data line of each feature board shares one group of clock and frame synchronizing signal, data line are separated from each other, all
Signal will be transferred to master control borad, be convenient for operating in next step.Therefore, there is very strong versatility using ST-BUS, it can be with
The convenient interaction realized between data.
Embodiment 2:
The proprietary ST-BUS agreement of integrated communication equipment, which is characterized in that ST-BUS is a kind of height for transmitting digital signal
Fast serial communication bus, including, frame synchronization (frame pulse) signal, bit clock signal and serial data signal.Frame synchronizing signal packet
Include type 0 and Class1 two ways: the lock-out pulse of type 0 appeared in the bit clock period that frame starts；Class1
Lock-out pulse needs to keep a complete slot cycle, i.e. 8 bit clock periods, but this method of synchronization use it is less.
ST-BUS includes 4 kinds of standard frequencies, is respectively: 16.432MHz, 8.192MHz, 4.096MHz and 2.048MHz, often
Kind frequency can be used as the internal clocking of component.The ST-BUS frame pulse period is 125us, according to the data rate of various criterion
It is classified as several different total number of timeslots.Time slot is the composition unit of frame, and a time slot accounts for 8bits, and a frame period is
125us, that is, 8K, 4 kinds of standard frequencies of ST-BUS bus obtain a frame includes how many bits divided by the frame period, then divided by 8,
Obtain specific time slot numerical value.
The synchronization signal of data transmission is provided by frame pulse signal, it is repeated with the frequency of 8KHz, that is, per second
Containing 8000 frame data, can be divided when ST-BUS bus uses the standard frequency of 8.192MHz using time-division multiplexing (TDM)
For 128 time slots, the transmission rate of each time slot is 64Kbps, then total rate of every serial data stream is 8.192Mbps.
Frame pulse signal is a negative pulse, it was only occurred in a bit clock period of frame beginning, each function in bus
Thus energy plate determines when start to receive or send a frame data stream using it as important references signal.
This special bus structures of ST-BUS keep it mutually compatible with rate needed for some narrow band transmissions.Multichannel 64Kbps
Time slot may make up the channel of higher rate, meet the requirement of more high data rate.Although ST-BUS is between component
Simple interface, but it can be used in the interconnection of equipment room, provide consistent flexible interface mode to component.
This special mode bus of ST-BUS, the occurrence of avoiding multiple-input multiple-output i.e. bus is seized, is, it is specified that each
Equipment only occupies bus in the time slot of distribution, to discharge bus in other time slots.
ST-BUS agreement can achieve the purpose that simplified system design optimization system resource, greatly improve communication equipment
Efficiency of research and development.
Embodiment 3:
ST-BUS agreement describes feature board in detail to the occupancy situation of each time slot, and the ST-BUS agreement of each feature board is specific
As shown in Figure 5, it is known that:
(1) control board is placed in the 126th time slot of ST-BUS_1 and two sets of bus DATA _ OUT signals of ST-BUS_2 frame by frame
Data AA；
(2) terminal plate occupies the transmission that 0~23 time slot carries out data in the DATA_OUT bus of ST-BUS agreement, wherein
0~5 time slot is the data for being sent to VHF1 (ultrashort wave radio set), and 6~11 be the data for being sent to VHF2, and 12~17 time slots are hair
The data of VHF3 are given, 18~23 be the data for being sent to VHF4；
(3) VHF (ultrashort wave radio set) occupies 24~47 time slots in the DATA_OUT bus of ST-BUS agreement and carries out data
Transmission, wherein 24~29 are sent to the data of terminal for VHF1,30~35 are sent to the data of terminal for VHF2, and 36~41 are
VHF3 is sent to the data of terminal, and 42~47 are sent to the data of terminal for VHF4；
(4) terminal and ultrashort wave radio set transmit first time slot of data in the DATA_IN data line of ST-BUS agreement
(i.e. ID number) is numbered for itself board type, the corresponding data sent of 1~24 time slot；
(5) terminal and per 6 time slots that all the way ultrashort wave radio set is in communication with each other in preceding 3 time slots be allocated to serial ports, rear two
A time slot is allocated to K mouthfuls, the last one slot reservations.
Each feature board needs to detect DATA _ OUT signal on ST-BUS_1 and ST-BUS_2 simultaneously according to two sets of bus timings
The 126th slot values (AA), judge this bus transfer if continuous 3 frame fails to be correctly detecting this slot values in bus therefore
Barrier can determine whether that this bus restores normal from malfunction if continuous 3 frame can be correctly detecting this slot values in bus.If
Feature board detects currently used bus transfer failure and other set bus functionality is normally then switched to normally functioning bus
On transmitted, need to light alarm signal if two buses detect failure.ST-BUS_1 (default transport in two sets of buses
Bus) priority is higher, if therefore ST-BUS_1 transmission it is normal or detected and restored normal transmission state, each feature board is equal
It should carry out data transmission in this bus, as shown in Fig. 4, show for the specific agreement of ST-BUS of feature board provided by the invention
It is intended to.
Through above-mentioned analysis it is found that control board is mainboard, other function plate is daughter board, and mainboard is to each daughter board tranmitting data register and frame
Synchronization signal after daughter board receives, according to each time slot service condition as defined in ST-BUS agreement, sends data letter to control board
Number, realize the perfection interaction of data between feature board, specific implementation principle is as shown in Fig. 5.
One skilled in the art will appreciate that in addition to realizing system provided by the invention in a manner of pure computer readable program code
It, completely can be by the way that method and step be carried out programming in logic come so that provided by the invention other than system, device and its modules
System, device and its modules are declined with logic gate, switch, specific integrated circuit, programmable logic controller (PLC) and insertion
The form of controller etc. realizes identical program.So system provided by the invention, device and its modules may be considered that
It is a kind of hardware component, and the knot that the module for realizing various programs for including in it can also be considered as in hardware component
Structure；It can also will be considered as realizing the module of various functions either the software program of implementation method can be Hardware Subdivision again
Structure in part.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, those skilled in the art can make a variety of changes or modify within the scope of the claims, this not shadow
Ring substantive content of the invention.In the absence of conflict, the feature in embodiments herein and embodiment can any phase
Mutually combination.
Claims (7)
1. a kind of communication means of integrated communication equipment, which is characterized in that the communication means uses ST-BUS bus；
The ST-BUS bus transfer: frame synchronizing signal, bit clock signal, serial data signal.
2. the communication means of integrated communication equipment according to claim 1, which is characterized in that the frame synchronizing signal packet
It includes: type 0 and Class1 both modes；
The lock-out pulse of type 0 appeared in the bit clock period that frame starts；
The lock-out pulse of Class1 needs to keep a complete slot cycle, i.e. 8 bit clock periods.
3. the communication means of integrated communication equipment according to claim 2, which is characterized in that the total knot of ST-BUS
Structure uses 4 kinds of standard frequencies: 16.432MHz, 8.192MHz, 4.096MHz, 2.048MHz；
Any frequency in 4 kinds of standard frequencies is used as the internal clocking of component；
The pulse period of the frame synchronizing signal is 125us.
4. the communication means of integrated communication equipment according to claim 3, which is characterized in that the frame synchronizing signal,
Repeated with the frequency of 8KHz；
Frame synchronizing signal is divided when ST-BUS bus uses the standard frequency of 8.192MHz using time-division multiplexing (TDM)
For 128 time slots, the transmission rate of each time slot is 64Kbps, and total rate of every serial data stream is 8.192Mbps.
5. the communication means of integrated communication equipment according to claim 4, which is characterized in that the frame synchronizing signal is
One negative pulse, it was only occurred in a bit clock period of frame beginning, and each feature board believes frame synchronization in ST-BUS bus
Number it is used as reference signal, and receives or sends the time according to what frame synchronizing signal determined a frame data stream.
6. the communication means of integrated communication equipment according to claim 5, which is characterized in that the ST-BUS bus packet
It includes: primary ST-BUS_1 bus and spare ST-BUS_2 bus this two sets of buses, using primary ST-BUS_1 bus, and primary
Spare ST-BUS_2 bus is used when ST-BUS_1 bus fails；Feature board shares DATA_IN data line in two sets of buses,
DATA_IN signal sequence should be synchronous with the holding of the timing of currently used bus.
7. the communication means of integrated communication equipment according to claim 6, which is characterized in that the total line gauge of ST-BUS
Fixed each equipment only occupies bus in the time slot of distribution, discharges bus in other time slots.
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| CN201811641969.1A CN109831266A (en) | 2018-12-29 | 2018-12-29 | The communication means of integrated communication equipment |
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| CN201811641969.1A CN109831266A (en) | 2018-12-29 | 2018-12-29 | The communication means of integrated communication equipment |
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Family
ID=66860093
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112667535A (en) * | 2020-12-30 | 2021-04-16 | 湖南博匠信息科技有限公司 | STBUS cascade communication method and communication system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1179785A1 (en) * | 2000-08-07 | 2002-02-13 | STMicroelectronics S.r.l. | Bus interconnect system |
| CN101599998A (en) * | 2009-07-24 | 2009-12-09 | 东北电网有限公司 | A kind of method for transmitting telecontrol data through particular channel |
-
2018
- 2018-12-29 CN CN201811641969.1A patent/CN109831266A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1179785A1 (en) * | 2000-08-07 | 2002-02-13 | STMicroelectronics S.r.l. | Bus interconnect system |
| CN101599998A (en) * | 2009-07-24 | 2009-12-09 | 东北电网有限公司 | A kind of method for transmitting telecontrol data through particular channel |
Non-Patent Citations (1)
| Title |
|---|
| 罗海 等: "ST_BUS收发功能电路的设计", 《数字技术与应用》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112667535A (en) * | 2020-12-30 | 2021-04-16 | 湖南博匠信息科技有限公司 | STBUS cascade communication method and communication system |
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Application publication date: 20190531 |