CN206350012U - CPCI communication systems - Google Patents
CPCI communication systems Download PDFInfo
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- CN206350012U CN206350012U CN201621348253.9U CN201621348253U CN206350012U CN 206350012 U CN206350012 U CN 206350012U CN 201621348253 U CN201621348253 U CN 201621348253U CN 206350012 U CN206350012 U CN 206350012U
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Abstract
The utility model discloses a kind of CPCI communication systems, wherein, the CPCI communication systems include：CPCI interface circuits, data processing circuit, communication interface circuit and house dog power circuit；Wherein, house dog power circuit, including：Power module and switch module；The output end of power module and one end of switch module are connected, and the other end of switch module is used to be connected with the feeder ear of communication interface circuit；Data processing circuit is connected with CPCI interface circuits and communication interface circuit respectively；At least one output end of data processing circuit is used for the working condition according to data processing circuit, the on or off of controlling switch component.Realize the on or off by controlling switch module in house dog power circuit, to control whether to carry out data transmission between cpci bus and communication interface, when avoiding system failure, by the data transfer of mistake to communication interface, the security of communication system is improved.
Description
Technical field
The utility model is related to communication technical field, more particularly to a kind of CPCI communication systems.
Background technology
With the continuous development of scientific technology, computer has all risen particularly significant in our daily life, study, work
Effect, in the industry, be also widely used.At present, industrial computer, is generally communicated using cpci bus.
Existing CPCI communication systems, generally between the EBI such as cpci bus interface and CAN or RS232, design
One hardware circuit is carried out data transmission as converter with realizing between cpci bus and communication interface.
However, aforesaid way, security mechanism is not used, it is possible that during the system failure, cpci bus still will
Data transfer, so that when the data of transmission are wrong, producing the Wrong control to equipment, causes the hair of danger to communication interface
Raw, security is poor.
Utility model content
The utility model is intended at least solve one of above-mentioned technical problem of the prior art to a certain extent.
Therefore, first purpose of the present utility model is to propose a kind of CPCI communication systems, by controlling house dog electricity
Whether the on or off of switch module in source circuit, to control to carry out data transmission between cpci bus and communication interface, keep away
When having exempted from system failure, by the data transfer of mistake to communication interface, the security of communication system is improved.
According to CPCI communication systems of the present utility model, comprising：CPCI interface circuits, data processing circuit, communication interface
Circuit and house dog power circuit；Wherein, the house dog power circuit, including：Power module and switch module；The power supply
The output end of module is connected with one end of the switch module, and the other end of the switch module is used for and communication interface electricity
The feeder ear connection on road；The data processing circuit is connected with the CPCI interface circuits and the communication interface circuit respectively；
At least one output end of the data processing circuit is used for according to the working condition of the data processing circuit, is opened described in control
Close the on or off of component.
According to CPCI communication systems of the present utility model, by control in house dog power circuit the conducting of switch module or
Shut-off, controlling whether to carry out data transmission between cpci bus and communication interface, it is to avoid when system breaks down, by mistake
Data transfer to communication interface, improve the security of communication system.
In addition, according to CPCI communication systems of the present utility model, can also have following distinguishing feature：
In some examples of the present utility model, the CPCI communication systems, in addition to：Feed back detection components；
The input of the feedback detection components is connected with the other end of the switch module, the feedback detection components
Output end is connected with the data processing circuit；
The data processing circuit, for the signal exported according to the feedback detection components, judges the switch module
Conducting state it is whether normal.
In some examples of the present utility model, the feedback detection components are photoelectrical coupler.
In some examples of the present utility model, the house dog power circuit, in addition to logic gates；
Two output ends of the data processing circuit are connected with two inputs of the logic gates respectively, described
The output end of logic gates is connected with the control end of the switch module.
In some examples of the present utility model, the logic gates is any one following gate circuit：With gate circuit,
Not circuit, OR circuit, NOR gate circuit, same to OR circuit.
In some examples of the present utility model, the switch module is any one following switching device：Triode, gold
Category-oxide semiconductor field effect transistor, insulated gate bipolar translator power tube, relay or breaker.
In some examples of the present utility model, the data processing circuit includes host CPU and from CPU；
At least one output end of the host CPU and described at least one output end from CPU, respectively with the switches set
The control end connection of part；
It is described to be connected from a CPU input with least one output end described in the host CPU, for according to institute
The signal of at least one output end output of host CPU is stated, when determining that the host CPU is abnormal, control is described from CPU work；
One input of the host CPU is connected with described from least one output end described in CPU, for according to institute
The signal from CPU at least one output end output is stated, it is determined that during the exception from CPU, controlling the host CPU work.
In some examples of the present utility model, the CPCI communication systems, in addition to：It is connected with the CPCI interface circuits
Plug-and-play circuit.
In some examples of the present utility model, battery CPCI communication systems, in addition to：With the CPCI interface circuits
The Power Supply Monitoring reset circuit connected with the data processing circuit；
The Power Supply Monitoring reset circuit, for it is determined that the voltage signal of CPCI interface circuits output is less than default
Value when, to the data processing circuit export reset signal.
In some examples of the present utility model, the CPCI communication systems, in addition to it is parallel with the data processing circuit
The static random storage circuit of connection.
Brief description of the drawings
The above-mentioned and/or additional aspect of the utility model and advantage from the following description of the accompanying drawings of embodiments will
Become substantially and be readily appreciated that, wherein：
Fig. 1 is the structural representation of the CPCI communication systems according to the utility model one embodiment；
Fig. 2 is the structural representation of the house dog power circuit according to the utility model one embodiment.
Description of reference numerals：
CPCI interface circuits -11；Data processing circuit -12；Communication interface circuit -13；
House dog power circuit -14；Power module -140；Switch module -141；
Logic gates -142；Feed back detection components -15；Plug-and-play circuit -16；
Power Supply Monitoring reset circuit -17；Static random storage circuit -18.
Embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element or element with same or like function are represented to same or similar label eventually.Below by ginseng
The embodiment for examining accompanying drawing description is exemplary, it is intended to for explaining the utility model, and it is not intended that to the utility model
Limitation.
Below with reference to the accompanying drawings the CPCI communication systems of the utility model embodiment are described.
The utility model embodiment is directed to existing CPCI communication systems, and line number is entered between cpci bus and communication interface
During according to transmission, the hardware circuit between two kinds of EBIs does not use certain security mechanism, is easily caused the generation of danger, peace
The problem of full property difference, a kind of CPCI communication systems including house dog power circuit are proposed, by controlling house dog power circuit
Whether the on or off of middle switch module, carry out data transmission between control cpci bus and communication interface, to improve communication
The security of system.
With reference to Fig. 1, the CPCI communication systems that the utility model embodiment is provided are described in detail.
Fig. 1 is the structural representation of the CPCI communication systems according to the utility model one embodiment.
Specifically, the CPCI communication systems that the utility model embodiment is provided, can be configured in any utilization CPCI total
In the terminal device that line is communicated, to realize the data transfer between cpci bus and communication interface.
As shown in figure 1, the CPCI communication systems of the utility model embodiment, including：CPCI interface circuits 11, data processing
Circuit 12, communication interface circuit 13 and house dog power circuit 14.
Wherein, data processing circuit 12 is connected with CPCI interface circuits 11 and communication interface circuit 13 respectively.Specifically, number
According in process circuit 12 can include central processing unit (Central Processing Unit, abbreviation CPU) or it is other have number
According to the module of processing function, to realize the processing to data.
It is understood that data processing circuit 12 is the arithmetic center of terminal device, when data processing circuit 12 works
When abnormal, may to communications interface transmission mistake data, cause danger generation.In order to avoid there is above-mentioned situation, this
The house dog power circuit 14 that utility model embodiment is provided, can include：Power module 140 and switch module 141；Wherein,
The output end of power module 140 is connected with one end of switch module 141, and the other end of switch module 141 is used for and communication interface
The feeder ear connection of circuit 13；At least one output end of data processing circuit 12 is used for the work according to data processing circuit 12
State, the on or off of controlling switch component 141.
When implementing, if data processing circuit 12 is working properly, it can be turned on controlling switch component 141, make house dog
Power module 140 in power circuit 14 is connected by switch module 141 with the feeder ear of communication interface circuit 13, is connect to communication
Mouth circuit 13 is powered, and data transfer can be normally carried out between cpci bus and communication interface；If data processing circuit 12 works
It is abnormal, it can be turned off with controlling switch component 141, make power module 140 and the communication interface circuit in house dog power circuit 14
13 feeder ear is off, and communication interface circuit 13 is not powered, so that between cpci bus and communication interface not
Carry out data transmission.
Specifically, switch module 141 can be any one following switching device：Triode, Metal-Oxide Semiconductor
Field-effect transistor, insulated gate bipolar translator power tube, relay or breaker.
In actual use, house dog power circuit 14, can also include logic gates.Wherein, data processing
Two output ends of circuit 12 are connected with two inputs of logic gates respectively, the output end and switches set of logic gates
The control end connection of part 141.Specifically, logic gates can be any one following gate circuit：With gate circuit, NOT gate electricity
Road, OR circuit, NOR gate circuit, same to OR circuit.
With reference to Fig. 2, the house dog power circuit 14 that the utility model embodiment is provided is described in detail.
Fig. 2 is the structural representation of the house dog power circuit according to the utility model one embodiment.
As shown in Fig. 2 house dog power circuit 14, including：Power module 140, switch module 141 and logic gates
142, illustrated so that switch module 141 is safety relay, logic gates 142 is same OR circuit as an example in figure, passed through
The dynamic pulse signal that CPU two pins CPU1 and CPU2 are exported respectively in data processing circuit 12, carrys out controlling switch component
141 on or off.
When implementing, because same OR circuit includes two inputs, an output end, when two inputs are all height
Level or when being all low level, output is just for high level.Therefore, when data processing circuit 12 is working properly, two CPU are each defeated
Go out dynamic pulse signal all the way, control is simultaneously high level or low level with two inputs of OR circuit, makes same OR gate electricity
The output end on road is high level, and then drives the safety relay closing of contact, so that the power supply in house dog power circuit 14
Module 140 is powered to communication interface circuit 13, and data transfer is normally carried out between cpci bus and communication interface；In data processing
During 12 operation irregularity of circuit, the pulse signal of any one CPU outputs is invalid, accordingly, and the output end with OR circuit is low
Level, and then drive safety relay contact to disconnect, make the power module 140 and communication interface electricity in house dog power circuit 14
The feeder ear on road 13 is off, and communication interface is not powered so that between cpci bus and communication interface without
Data transfer.
Whether it is understood that normal for the conducting state of detection switch component 141, the utility model embodiment is carried
The CPCI communication systems of confession, as shown in figure 1, feedback detection components 15 can also be included.Specifically, feedback detection components 15 is defeated
Enter end to be connected with the other end of switch module 141, the output end of feedback detection components 15 is connected with data processing circuit 12, accordingly
, data processing circuit 12, for the signal exported according to feedback detection components 15, judges the conducting state of switch module 141
It is whether normal.
Wherein, feedback detection components 15 can be photoelectrical coupler, as shown in Figure 2.Specifically, when data processing circuit 12
When working properly, controlling switch component 141 is in the conduction state, and the input of photoelectrical coupler is to have control source, so that light
Electric coupler is turned on, and data processing circuit 12 can receive the electric signal of photoelectrical coupler output；When data processing circuit 12
During operation irregularity, controlling switch component 141 is off state, and the input of photoelectrical coupler does not have control source, so that light
Electric coupler ends, and electric signal is no longer exported, so that data processing circuit 12 can be with according to whether receive photoelectrical coupler
The electric signal of output, judges whether the conducting state of switch module 141 is normal.
In actual use, data processing circuit 12 can include central processing unit (Central Processing
Unit, abbreviation CPU), to handle data, and in order to which ensure can in communication system normal work, data processing circuit 12
With including multiple CPU, such as host CPU and from CPU.Wherein, at least one output end of host CPU and at least one output from CPU
End, the control end with switch module 141 is connected respectively, any one CPU can controlling switch component 141 conducting and pass
It is disconnected.
Wherein, connected from least one output end of a CPU input and host CPU, for according to host CPU extremely
The signal of few output end output, when determining that host CPU is abnormal, control works from CPU；
Accordingly, an input of host CPU is connected with from least one output end described in CPU, for according to from
The signal of CPU at least one output end output, it is determined that from CPU it is abnormal when, control host CPU work.
,, can be with controlling switch component when host CPU operation irregularity if the CPU of work at present is host CPU when implementing
141 shut-offs, then power module 140 is not powered to communication interface circuit 13, the number between cpci bus and communication interface circuit 13
According to Transmission, now, the signal that can be exported from CPU according at least one output end of host CPU determines that host CPU is abnormal, from
CPU is started working, and controlling switch component 141 is turned on, and data transfer is proceeded between cpci bus and communication interface circuit 13,
So as to ensure that the normal operation of communication system.
It is understood that in actual use, CPCI interface circuits 11, data processing circuit 12, communication interface circuit
13 can be integrated on board, and in order to realize board in the case where data processing circuit 12 is not powered off, though insertion or
Extraction nor affects on normal work, and the CPCI communication systems that the embodiment of the present application is provided can also include plug-and-play circuit 16, its
In, plug-and-play circuit 16 is connected with CPCI interface circuits 11.In addition, plug-and-play circuit 16 also acts as electric delay startup effect, together
When possess power supply function, such as overcurrent protection, overvoltage protection etc..
It should be noted that during due to electricity on data processing circuit 12 or of short duration when falling, number occurs in supply voltage
According to process circuit 12 it is possible that failure, causes loss of data, therefore, Power Supply Monitoring can also be included in CPCI communication systems
Reset circuit 17, wherein, Power Supply Monitoring reset circuit 17 is connected with CPCI interface circuits 11 and data processing circuit 12, for
When determining that the voltage signal that CPCI interface circuits 11 are exported is less than default value, reset signal is exported to data processing circuit 12,
Avoid the loss of data.
Wherein, default value could be arranged to the minimum voltage of the normal work of data processing circuit 12.
In addition, in order to carry out to include parallel connecting with data processing circuit 12 in Data expansion, CPCI communication systems
The static random storage circuit 18 connect.
According to CPCI communication systems of the present utility model, by control in house dog power circuit the conducting of switch module or
Shut-off, controlling whether to carry out data transmission between cpci bus and communication interface, it is to avoid when system breaks down, by mistake
Data transfer to communication interface, improve the security of communication system.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or the spy that the embodiment or example are described
Point is contained at least one embodiment of the present utility model or example.In this manual, to the schematic table of above-mentioned term
State and be necessarily directed to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be with
Combined in an appropriate manner in any one or more embodiments or example.In addition, those skilled in the art can be by
Not be the same as Example or example described in this specification are combined and combined.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include at least one this feature.In the description of the present application, " multiple " are meant that at least two, such as two, three
It is individual etc., unless otherwise specifically defined.
Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is
Exemplary, it is impossible to it is interpreted as to limitation of the present utility model, one of ordinary skill in the art is in scope of the present utility model
It is interior above-described embodiment to be changed, changed, replaced and modification.
Claims (10)
1. a kind of CPCI communication systems, it is characterised in that including：CPCI interface circuits, data processing circuit, communication interface circuit
And house dog power circuit；
Wherein, the house dog power circuit, including：Power module and switch module；
The output end of the power module is connected with one end of the switch module, and the other end of the switch module is used for and institute
State the feeder ear connection of communication interface circuit；
The data processing circuit is connected with the CPCI interface circuits and the communication interface circuit respectively；
At least one output end of the data processing circuit is used for the working condition according to the data processing circuit, controls institute
State the on or off of switch module.
2. the system as claimed in claim 1, it is characterised in that also include：Feed back detection components；
The input of the feedback detection components is connected with the other end of the switch module, the output of the feedback detection components
End is connected with the data processing circuit；
The data processing circuit, for the signal exported according to the feedback detection components, judges leading for the switch module
Whether logical state is normal.
3. system as claimed in claim 2, it is characterised in that the feedback detection components are photoelectrical coupler.
4. the system as claimed in claim 1, it is characterised in that the house dog power circuit, in addition to logic gates；
Two output ends of the data processing circuit are connected with two inputs of the logic gates respectively, the logic
The output end of gate circuit is connected with the control end of the switch module.
5. system as claimed in claim 4, it is characterised in that the logic gates is any one following gate circuit：With
Gate circuit, not circuit, OR circuit, NOR gate circuit, same to OR circuit.
6. system as claimed in claim 5, it is characterised in that the switch module is any one following switching device：Three
Pole pipe, Metal-Oxide Semiconductor field-effect transistor, insulated gate bipolar translator power tube, relay or breaker.
7. the system as described in claim 1-6 is any, it is characterised in that the data processing circuit include host CPU and from
CPU；
At least one output end of the host CPU and described at least one output end from CPU, respectively with the switch module
Control end is connected；
It is described to be connected from a CPU input with least one output end described in the host CPU, for according to the master
The signal of CPU at least one output end output, when determining that the host CPU is abnormal, control is described from CPU work；
One input of the host CPU is connected with described from least one output end described in CPU, for according to it is described from
The signal of CPU at least one output end output, it is determined that during the exception from CPU, controlling the host CPU work.
8. system as claimed in claim 7, it is characterised in that also include：The hot plug being connected with the CPCI interface circuits
Circuit.
9. system as claimed in claim 7, it is characterised in that also include：At the CPCI interface circuits and the data
Manage the Power Supply Monitoring reset circuit of circuit connection；
The Power Supply Monitoring reset circuit, for it is determined that the voltage signal of CPCI interface circuits output is less than default value
When, export reset signal to the data processing circuit.
10. the system as described in claim 8 or 9 is any, it is characterised in that also including connecting parallel with the data processing circuit
The static random storage circuit connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621348253.9U CN206350012U (en) | 2016-12-08 | 2016-12-08 | CPCI communication systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621348253.9U CN206350012U (en) | 2016-12-08 | 2016-12-08 | CPCI communication systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206350012U true CN206350012U (en) | 2017-07-21 |
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ID=59318431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621348253.9U Active CN206350012U (en) | 2016-12-08 | 2016-12-08 | CPCI communication systems |
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| Country | Link |
|---|---|
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113113966A (en) * | 2020-01-10 | 2021-07-13 | 西门子股份公司 | Protection against internal errors |
-
2016
- 2016-12-08 CN CN201621348253.9U patent/CN206350012U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113113966A (en) * | 2020-01-10 | 2021-07-13 | 西门子股份公司 | Protection against internal errors |
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