CN206649312U - Information gathering redundant system based on multiplex data bus - Google Patents
Information gathering redundant system based on multiplex data bus Download PDFInfo
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- CN206649312U CN206649312U CN201621484421.7U CN201621484421U CN206649312U CN 206649312 U CN206649312 U CN 206649312U CN 201621484421 U CN201621484421 U CN 201621484421U CN 206649312 U CN206649312 U CN 206649312U
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Abstract
The utility model discloses in a kind of information gathering redundant system based on multiplex data bus, each data transfer module is at least monitored by another data transfer module in the system, when the data transfer module failure, host computer can be reported to by the failure situation by monitoring other data transfer modules of the data transfer module, and because every road collection circuit is connected by data/address bus with least two data transfer modules, therefore host computer can bypass the data transfer module of the failure, and the gathered data that should be transferred by the data transfer module of failure is obtained from other data transfer modules.Therefore, the system need not increase standby data transfer module, but make it is standby each other between existing data transfer module in system, also being capable of normal operation with the system in individual data transfer module failure so as to realize enough redundancies.
Description
Technical field
It the utility model is related to information acquisition system field, more particularly to the information gathering redundancy based on multiplex data bus
System.
Background technology
In subway system, it is common data transfer to gather various types of signal and transmit signals to host computer to carry out processing
Process.And the quantity generally gathered is relatively more, it is necessary to be divided into multi pass acquisition circuit.Such as the control system in subway shield door
In, two-way collection circuit is generally just had, the open and-shut mode of each offside door is gathered all the way, gathers each offside door all the way in addition
Open and-shut mode, each road collection circuit can corresponding to be provided with a data transfer module, collection circuit can be adopted what is collected
Collection data send data transfer module to by CAN, and data transfer module is adopted according to the instruction of host computer by what is collected
Collection data transfer to host computer.
But in actual applications, when data transfer module breaks down, then whole data transmission procedure understands terminal, on
Position machine can not collect required data, and the system is difficult to the redundancy requirement for meeting data.And in order to increase redundancy, then need for
Each circuit-switched data collection more data transfer modules of link configuration are used as standby, but so can undoubtedly improve system cost.
Utility model content
For overcome the deficiencies in the prior art, the purpose of this utility model is to provide the information based on multiplex data bus
Redundant system is gathered, the system, which need not increase standby data transfer module, also can allow system there are enough redundancies, with individual
System also being capable of normal operation during other data transfer module failure.
The purpose of this utility model is realized using following technical scheme：
Information gathering redundant system based on multiplex data bus, including at least two-way collection circuit, in addition to extremely are provided
Few two data transfer modules, the data transfer module are carried out according to the instruction of host computer between collection circuit and host computer
Data are transferred, and per road, collection circuit is connected by data/address bus with least two data transfer modules, each data transfer module
At least monitored by another data transfer module, any data transfer module has listened to data transfer module operation irregularity
When, then the data transfer module of operation irregularity is reported into host computer, to make host computer instruct other data transfer modules to perform
The data of the data transfer module of operation irregularity transfer work.
Wherein, per road, collection circuit corresponds to a data transfer module.
Wherein, each data transfer module and the collection connection corresponding to adjacent data transfer module.
Wherein, the host computer sends transfer instructions in turn to each data transfer module, it is desirable to receives transfer instructions
Data transfer module transfer it and connect the gathered data of all buses, when there is data transfer module failure, then skip
The data transfer module sends transfer instructions to other data transfer modules.
Wherein, the host computer periodically sends transfer instructions to all data transfer modules, it is desirable to receives transfer
The data transfer module of instruction transfers the gathered data of corresponding bus, when there is data transfer module failure, then to its phase
When adjacent data transfer module sends transfer instructions, the data transfer module is made to transfer corresponding to the data transfer module of failure
The gathered data of bus.
Wherein, the data acquisition always CAN or 485 buses.
Wherein, data transfer module includes two CPU communicated, and one of CPU is in running order, and in addition one
Individual CPU is in standby host state, when the CPU in standby host state listens in running order CPU operation irregularities, then switches
To working condition, and original in running order CPU is made to switch to standby host state.
Compared with prior art, the beneficial effects of the utility model are：The utility model provides one kind and is based on more ways
According in the information gathering redundant system of bus, each data transfer module is at least by another data transfer module in the system
Monitor, when the data transfer module failure, other data transfer modules for monitoring the data transfer module can be by the failure feelings
Condition reports to host computer, and because every road collection circuit is connected by data/address bus with least two data transfer modules, therefore
Host computer can bypass the data transfer module of the failure, and obtain and should be turned by the data of failure from other data transfer modules
The gathered data for sending module to transfer.Therefore, the system need not increase standby data transfer module, but make existing in system
It is standby each other between data transfer module, so as to realize enough redundancies, with the system in individual data transfer module failure
Being capable of normal operation.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure：1st, collector；2nd, CAN；3rd, data transfer module；4th, host computer.
Embodiment
Below, with reference to accompanying drawing and embodiment, the utility model is described further：
As described in Figure 1, the system includes two-way collection circuit, and each circuit that gathers includes multiple collectors 1, collector
1 open and-shut mode for gathering shield door, per road, collection circuit is correspondingly arranged on a data transfer module 3, i.e., in the system
Include two data transfer modules 3, data transfer module 3 is connected with host computer 4.In the present embodiment, per road, collection circuit is set
Two-way CAN 2 is equipped with, this two-way CAN 2 is connected to different data transfer modules 3.Connect between data transfer module 3
Communication line is connected to be used to monitor mutually.When one of them listens to another failure, then to the failure feelings up to a hundred of host computer 4
Condition, after host computer 4 recognizes one of failure of data transfer module 3, then only send and refer to another data transfer module 3
Order, make the data transfer module 3 that the gathered data of two collection circuits is transferred into host computer 4.
It should be noted that the present embodiment is based under shield door state acquisition this application scenarios, so only two-way
Circuit is gathered, also only two data transfer modules 3, the major function of data transfer module 3 is to turn the data for gathering circuit
Deliver to host computer.It can be multi pass acquisition circuit if be applied under other scenes, and match multiple data transfer modules 3,
The function of data transfer module 3 can also be the data distributing of host computer to gathering circuit.Optimal, or per road gathering line
One data transfer module 3 of the corresponding configuration in road, according to actual conditions, polygamy that can also be appropriate or match somebody with somebody less.When collection circuit
Can be that each data transfer module 3 connects all gathering lines in connection during with the quantity more than two of data transfer module 3
Collection circuit corresponding to road or each data transfer module 3 itself and its adjacent data transfer module 3,
As long as ensure that every road collection circuit is connected by data/address bus with least two data transfer modules 3.Similarly, each data
Transfer module 3 can monitor other all data transfer modules 3, can also merely listen for its adjacent data transfer module 3, only
Ensure that each data transfer module 3 is at least monitored by another data transfer module 3.
Within the system, the method that host computer 4 obtains gathered data can be sent in turn to each data transfer module 3
Transfer instructions, it is desirable to which the data transfer module 3 for receiving transfer instructions is locked the gathered data for connecting all bus, when having
During data 3 failure of transfer module, then skip the data transfer module 3 and send transfer instructions to other data transfer modules 3.Also may be used
Be periodically to all data transfer modules 3 send transfer instructions, it is desirable to receive the data transfer module 3 of transfer instructions
The data of corresponding bus are transferred, when there is data 3 failure of transfer module, are then sent to its adjacent data transfer module 3
During transfer instructions, the data transfer module 3 is made to transfer the gathered data of the bus corresponding to the data transfer module 3 of failure.
Further, in order to improve the reliability of data transfer module 3, data transfer module 3 communicates including two
CPU, one of CPU is in running order, and another CPU is in standby host state, when in standby host state CPU monitor
During in running order CPU operation irregularities, then working condition is switched to, and make original in running order CPU switchings
For standby host state.
Compared with prior art, each data transfer module 3 is at least supervised by another data transfer module 3 in the system
Listen, when data 3 failure of transfer module, other data transfer modules 3 for monitoring the data transfer module 3 can be by the failure feelings
Condition reports to host computer 4, and because every road collection circuit is connected by data/address bus with least two data transfer modules 3, because
This host computer 4 can bypass the data transfer module 3 of the failure, and should be by failure from the acquisition of other data transfer modules 3
The gathered data that data transfer module 3 transfers.Therefore, the system need not increase standby data transfer module 3, but make system
In it is standby each other between existing data transfer module 3, so as to realize enough redundancies, with individual data transfer module 3 therefore
System also being capable of normal operation during barrier.
It will be apparent to those skilled in the art that technical scheme that can be as described above and design, make other various
Corresponding change and deformation, and all these changes and deformation should all belong to the protection of the utility model claims
Within the scope of.
Claims (7)
1. the information gathering redundant system based on multiplex data bus, including at least two-way collection circuit, it is characterised in that：Also wrap
At least two data transfer modules are included, the data transfer module is according to the instruction of host computer between collection circuit and host computer
Data transfer is carried out, collection circuit is connected by data/address bus with least two data transfer modules per road, and each data transfer
Module is at least monitored by another data transfer module, and it is different that any data transfer module has listened to the work of data transfer module
Chang Shi, then the data transfer module of operation irregularity is reported into host computer, to make host computer instruct other data transfer modules to hold
The data of the data transfer module of row operation irregularity transfer work.
2. the information gathering redundant system based on multiplex data bus as claimed in claim 1, it is characterised in that：Gathered per road
Circuit corresponds to a data transfer module.
3. the information gathering redundant system based on multiplex data bus as claimed in claim 2, it is characterised in that：Each data
Transfer module and the collection connection corresponding to adjacent data transfer module.
4. the information gathering redundant system based on multiplex data bus as claimed in claim 3, it is characterised in that：It is described upper
Machine sends transfer instructions in turn to each data transfer module, it is desirable to which the data transfer module for receiving transfer instructions transfers its institute
The gathered data of all buses is connected, when there is data transfer module failure, then the data transfer module is skipped and is counted to other
Transfer instructions are sent according to transfer module.
5. the information gathering redundant system based on multiplex data bus as claimed in claim 3, it is characterised in that：It is described upper
Machine periodically sends transfer instructions to all data transfer modules, it is desirable to which the data transfer module for receiving transfer instructions transfers
The gathered data of corresponding bus, when there is data transfer module failure, then send and turn to its adjacent data transfer module
When sending instruction, the data transfer module is made to transfer the gathered data of the bus corresponding to the data transfer module of failure.
6. the information gathering redundant system based on multiplex data bus as claimed in claim 1, it is characterised in that：The data
Bus is CAN or 485 buses.
7. the information gathering redundant system based on multiplex data bus as claimed in claim 1, it is characterised in that：Data transfer
Module includes two CPU communicated, and one of CPU is in running order, and another CPU is in standby host state, when
When CPU in standby host state listens in running order CPU operation irregularities, then working condition is switched to, and made original
In running order CPU switches to standby host state.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621484421.7U CN206649312U (en) | 2016-12-31 | 2016-12-31 | Information gathering redundant system based on multiplex data bus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621484421.7U CN206649312U (en) | 2016-12-31 | 2016-12-31 | Information gathering redundant system based on multiplex data bus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107065640A (en) * | 2016-12-31 | 2017-08-18 | 广州新科佳都科技有限公司 | Information gathering redundant system based on multiplex data bus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107065640A (en) * | 2016-12-31 | 2017-08-18 | 广州新科佳都科技有限公司 | Information gathering redundant system based on multiplex data bus |
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