CN205103722U - Computer based interlocking hardware platform - Google Patents
Computer based interlocking hardware platform Download PDFInfo
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- CN205103722U CN205103722U CN201520884123.6U CN201520884123U CN205103722U CN 205103722 U CN205103722 U CN 205103722U CN 201520884123 U CN201520884123 U CN 201520884123U CN 205103722 U CN205103722 U CN 205103722U
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Abstract
Computer based interlocking hardware platform, including power, 4 N2600CPU modules, 7 IO modules, VPC frequency module and 6U -CPCI machine casees, the power end of N2600CPU module is connected to the output of power, and the CPCI backplate that N2600CPU module, IO module and VPC frequency module pass through 6U -CPCI machine case interconnects, the power is the CPCI power of 2 3U 8HP standard constructions, and the power adopts the circuit connection that flow equalizes. The utility model discloses a 6U -CPCI framework has improved the anti -vibration impact capacity, accords with the electromagnetic compatibility requirement.
Description
Technical field
The utility model relates to track traffic computer interlock hardware platform field, is specially a kind of 6U-CPCI computer interlock hardware platform.
Background technology
Computer interlock take computer technology as core, adopts the communication technology, reliability and fault-tolerant technique and " fault--safety " technology to realize the real-time control system of interlocking in railway station requirement.Domestic computer interlock from small station to major station, from branch line to main line, develops very rapid in Wai Dao road, road.So far system-wide has thousands of stations and uses various computer interlock platform.Apply have Dual-Computer Hot-Standby System more widely at present, two-node cluster hot backup computer system is progressively ripe and stable in prolonged application and development, but due to its inborn deficiency, still exposes the shortcoming in the design of many soft and hardwares.Along with transformation and the construction of rail line, they are had higher requirement to the reliability of computer interlock system and security.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of 6U-CPCI computer interlock hardware platform, meets the request for utilization of reliability and security.
The technical solution of the utility model is: computer interlock hardware platform, comprise power supply, 4 pieces of N2600CPU modules, 7 pieces of I/O module, VPC frequency division module and 6U-CPCI cabinets, the output terminal of power supply connects the power end of N2600CPU module, N2600CPU module, I/O module and VPC frequency division module are by the CPCI backplane interconnect of 6U-CPCI cabinet, described power supply is the CPCI power supply of 2 3U × 8HP normal structures, and power acquisition flow equalizing circuit connects.
Described 6U-CPCI cabinet is spelling assembling structure, and cabinet adopts aluminum alloy materials.
Described 6U-CPCI cabinet is provided with cover plate shielding strip and front panel shielding strip, guide rails assembling has Electro-static Driven Comb reed, and the power input board place of CPCI backboard is provided with electromagnetic compatibility EMC circuit.
Be provided with electric source filter circuit to power supply, described electric source filter circuit is: input through exchanging isolating transformer, RC filtering circuit, exports after π type filtering circuit and LC filtering circuit successively.
In the pcb board wiring of CPCI backboard, except geodesic line, be provided with isolated area with the fixed orifice of cabinet inner bag with by the place of metal, superficies isolation distance is greater than 6.4mm, and internal layer isolation distance is greater than 3.5mm.
Described N2600CPU module is three kinds of CPU board: MCU, DCU and PCU.
Described 4 pieces of N2600CPU modules have different front panels, connect communication, can run simultaneously by CPCI case back plate; 7 pieces of I/O module are simultaneously by CPU board identification; VPC module can realize division function.
The utility model first novelty adopts the architecture design of dual power supply current-sharing extended pattern CPCI; Cabinet have employed spelling installing meter, take into account convenient and firm and shock resistance, ensure that keep in repair and replacing very convenient, new design has been carried out to Electro Magnetic Compatibility aspect.
The utility model supports 4 pieces of CPU board to run and the communication of many IO board simultaneously.Described 6U-CPCI cabinet meets cpci bus specification, improves anti-vibrating and impact ability, meets EMC Requirements, achieve hot plug technology.
Accompanying drawing explanation
Fig. 1 is the signal of the utility model casing structure.
Fig. 2 is the circuit diagram of the utility model electric source filter circuit.
Embodiment
The utility model comprises power supply, 4 pieces of N2600CPU modules, 7 pieces of I/O module, VPC frequency division module and 6U-CPCI cabinets, the output terminal of power supply connects the power end of N2600CPU module, N2600CPU module, I/O module and VPC frequency division module are by the CPCI backplane interconnect of 6U-CPCI cabinet, as shown in Figure 1, described power supply PWR is the CPCI power supply of 2 3U × 8HP normal structures, power acquisition flow equalizing circuit connects, and has two-way redundancy and flow equalizing function, and 200W exports.In the present embodiment, namely one have three kinds of CPU board: MCU, for master control; DCU, controls for I/O; PCU, for Energy control, in order to be conducive to the maintainability of the centralized and unified and software systems of resource, the design of three kinds of CPU at critical piece as completely unified in core cpu plate and support plate.
Describe enforcement of the present utility model below in detail.
1, novelty adopts the architecture design of dual power supply current-sharing extended pattern CPCI first.
Domestic general CPCI cabinet framework adopts simplex power mode, due to increasing of load, cause the decline of supply voltage obvious, the loaded work piece of near-end is normal, but the load of far-end there will be system instability due to the reason of pressure drop, system reboot, the phenomenon crashed occurs again and again, so the system slot under VXworks of existing CPCI cabinet is generally about 8, if at the more system groove of expansion, must increase a set of equipment more just can meet the demands, so not only adding material becomes, and maintenance is also inconvenience.
The utility model have employed the mode of dual power supply, work together with two power supplys, utilize flow equalizing circuit to realize current-sharing, if underload, then a power work one is for subsequent use, if overload, two power supplys work together, mean allocation working current, this design can ensure under VXworks system CPCI with system slot expand to 21 grooves, saved cost and easy to maintenance, through test for a long time, average temperature time between failures can reach more than 2500 hours.
2, cabinet have employed spelling installing meter, takes into account convenient and firm and shock resistance.The convenience that ensure that maintenance and change.
The device of CPCI cabinet generally comprises: ring flange, rear otic placode, f type side plate, front beam, rear cross beam, middle cross beam, screw thread bar, insulation strip, cover plate, shielding strip, panel, gib block etc. device, existing cabinet often adopts the structure of one joint forming to these devices, although be conducive to manufacturing, be unfavorable for safeguarding.In the utility model, these devices obtain cabinet by assembled, and are all aluminum alloy materials.Each parts of cabinet can customize according to customer requirement, and any part has damage can change spare part very easily, provide conveniently, save operation cost to maintenance.Splicing structure is also beneficial to stressed dispersion, is conducive to shock resistance.
3, the design of Electro Magnetic Compatibility EMC
Because EMC testing requirements is very strict to CPCI power supply, EMC is just more harsh to the requirement of military products, general electromagnetic compatibility is considered all just to consider a kind of mode, raising safe distance, add simple electric source filter circuit, but the utility model is started with from many aspects, make the grade of EMC bring up to a new aspect, reach the requirement of EMC4 level.
A: first, by installing cover plate shielding strip and front panel shielding strip on cabinet, and the Electro-static Driven Comb reed of mounting guide rail, meet the EMC environmental requirement of entire system.
Meanwhile, the power input board of CPCI backboard adds EMC circuit, increase anti-pressure ability, meet 4 grades of requirement of strength of fast transient and surge (impact).
B: improve safe distance
In the pcb board wiring of CPCI backboard, except geodesic line, be provided with isolated area with the fixed orifice of cabinet inner bag with by the place of metal, superficies isolation distance is greater than 6.5mm, and internal layer isolation distance is greater than 3mm.
C: electric source filter circuit designs
The filtering circuit that electric source filter circuit is made up of electric capacity, inductance and resistance, its principle is exactly a kind of impedance network: the impedance of power-supply filter input, outgoing side and power supply and load-side is larger, more effective to the decay of electromagnetic interference (EMI).Wave filter can carry out effective filtering to the frequency beyond the frequency of characteristic frequency in power lead or this frequency, obtains the power supply signal of a characteristic frequency, or eliminates the power supply signal after a characteristic frequency.
General passive filter circuit on the market, mostly adopts single filtering mode, or LC filtering, RC filtering, they otherwise there is good low-pass filtering, but volume ratio is heavier, the frequency range of filtering is narrow, and has very large noise energy, and interchange end does not add isolation.
The utility model adopts and exchanges the mode that isolating transformer adds mixed filtering, and as shown in Figure 2, described mixed filtering is front end RC filtering, the filtering of middle-end π type, rear end LC, ensure that and well exchange isolation, low pass, in logical, the effect of high-pass filtering has had certain improvement.
In sum, the utility model, on the basis ensureing power supply supply, improves anti-vibrating and impact ability, meets EMC Requirements, meet the requirement of safety and reliability.
Claims (6)
1. computer interlock hardware platform, it is characterized in that comprising power supply, 4 pieces of N2600CPU modules, 7 pieces of I/O module, VPC frequency division module and 6U-CPCI cabinets, the output terminal of power supply connects the power end of N2600CPU module, N2600CPU module, I/O module and VPC frequency division module are by the CPCI backplane interconnect of 6U-CPCI cabinet, described power supply is the CPCI power supply of 2 3U × 8HP normal structures, and power acquisition flow equalizing circuit connects.
2. computer interlock hardware platform according to claim 1, is characterized in that described 6U-CPCI cabinet is spelling assembling structure, and cabinet adopts aluminum alloy materials.
3. computer interlock hardware platform according to claim 1, it is characterized in that described 6U-CPCI cabinet is provided with cover plate shielding strip and front panel shielding strip, guide rails assembling has Electro-static Driven Comb reed, and the power input board place of CPCI backboard is provided with electromagnetic compatibility EMC circuit.
4. computer interlock hardware platform according to claim 1, it is characterized in that being provided with electric source filter circuit to power supply, described electric source filter circuit is: input through exchanging isolating transformer, RC filtering circuit, exports after π type filtering circuit and LC filtering circuit successively.
5. computer interlock hardware platform according to claim 1, it is characterized in that in the pcb board wiring of CPCI backboard, except geodesic line, be provided with isolated area with the fixed orifice of cabinet inner bag with by the place of metal, superficies isolation distance is greater than 6.4mm, and internal layer isolation distance is greater than 3.5mm.
6. computer interlock hardware platform according to claim 1, is characterized in that described N2600CPU module is three kinds of CPU board: MCU, DCU and PCU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520884123.6U CN205103722U (en) | 2015-11-06 | 2015-11-06 | Computer based interlocking hardware platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520884123.6U CN205103722U (en) | 2015-11-06 | 2015-11-06 | Computer based interlocking hardware platform |
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| Publication Number | Publication Date |
|---|---|
| CN205103722U true CN205103722U (en) | 2016-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520884123.6U Active CN205103722U (en) | 2015-11-06 | 2015-11-06 | Computer based interlocking hardware platform |
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| Country | Link |
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| CN (1) | CN205103722U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110435562A (en) * | 2019-09-06 | 2019-11-12 | 深圳市英博超算科技有限公司 | Vehicular modular hardware system |
| CN111142627A (en) * | 2018-11-06 | 2020-05-12 | 鸿富锦精密电子(天津)有限公司 | IO rear window |
-
2015
- 2015-11-06 CN CN201520884123.6U patent/CN205103722U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111142627A (en) * | 2018-11-06 | 2020-05-12 | 鸿富锦精密电子(天津)有限公司 | IO rear window |
| CN111142627B (en) * | 2018-11-06 | 2021-08-27 | 鸿富锦精密电子(天津)有限公司 | IO rear window |
| CN110435562A (en) * | 2019-09-06 | 2019-11-12 | 深圳市英博超算科技有限公司 | Vehicular modular hardware system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |