CN203166491U - Hardware platform of microcomputer protective device - Google Patents
Hardware platform of microcomputer protective device Download PDFInfo
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- CN203166491U CN203166491U CN 201320128087 CN201320128087U CN203166491U CN 203166491 U CN203166491 U CN 203166491U CN 201320128087 CN201320128087 CN 201320128087 CN 201320128087 U CN201320128087 U CN 201320128087U CN 203166491 U CN203166491 U CN 203166491U
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Abstract
The utility model provides a hardware platform of a microcomputer protective device, which comprises a bus plug-in, and a CPU (Central Processing Unit) plug-in, a sampling plug-in and an output plug-in connected with the bus plug-in. The CPU plug-in comprises a management CPU, a communication module connected with the management CPU, a protection CPU, and a switch-in circuit and a switch-out circuit connected with the protection CPU, wherein a magnetic isolator is arranged between the management CPU and the protection CPU, and a photoelectric isolator is connected with the communication module, the switch-in circuit and the switch-out circuit. The hardware platform employs entire plug-in connection, so that plugging of each plug-in is convenient, and maintenance and replacement are easy; and electromagnetic isolation and photoelectric isolation are used in modules of the plug-ins, thereby preventing external electromagnetic interference, enabling the modules to be independent from each other and not influence each other, and enhancing stability of the hardware platform.
Description
Technical field
The utility model relates to a kind of hardware platform for the protection of device, is specifically related to a kind of hardware platform for microcomputer protecting device.
Background technology
Microcomputer protecting device is a kind of microelectric technique and computer technology utilized, and it is multi-functional in the power automation measure and control device of one to have measurement, control, supervision, protection, a communication etc., is the desirable electric unit that constitutes intelligent switchboard system.Because it has very high reliability and sensitivity, good certainty of measurement, friendly characteristics such as man-machine interface, microcomputer protecting device is widely used in every field such as generating, transmission of electricity, distribution, electricity consumption.
At present, there are many shortcomings in traditional protective device that is formed by relay assembly.The contact of traditional protective relaying device is more, complex structure, and not only bad for maintenance with change, and reliability and sensitivity are relatively poor.Debugging and maintenance need have a power failure and just can carry out, and influences normal daily production.Electromagnetic interference between the existing microcomputer protecting device module is serious, makes its measurement and monitoring to data be easy to generate deviation.
In order to solve above-mentioned deficiency of the prior art, the utility model proposes a kind of new solution.
The utility model content
The purpose of this utility model provides a kind of maintenance of being convenient to module and detects, and can prevent electromagnetic interference, the microcomputer protecting device hardware platform that stability is strong.
For reaching above-mentioned purpose, the technical scheme that the utility model adopts is: a kind of microcomputer protecting device hardware platform is provided, comprises CPU card, sampling plug-in and output inserter; Also comprise the bus plug-in unit that is connected with CPU card, sampling plug-in and output inserter;
Described CPU card comprises CPU management and the communication module that is connected with CPU management, also comprise protection CPU and with opening into circuit and digital output circuit of being connected of protection CPU;
Be provided with the magnetic isolator between described CPU management and the protection CPU;
Described communication module, open on circuit and the digital output circuit and be connected with photoisolator.
Preferably, described CPU card comprises the frequency acquisition module that is connected with protection CPU.
Preferably, described sampling plug-in comprises 16 A/D sampling modules.
Preferably, also comprise RAM module and the FIASH module that is connected with protection CPU.
Preferably, described protection CPU is connected by SPI with CPU management.
In sum, the utility model advantage: 1, the utility model uses the bus plug-in unit that CPU card, sampling plug-in and output inserter are coupled together, and signal transmits by the bus plug-in unit; Each plug-in unit independent operating is convenient to detection and replacing to any plug-in unit, and has improved the stability of hardware platform; 2, between module, be provided with photoisolator and magnetic isolator, each module can not be influenced each other when work, also can not be subjected to extraneous electromagnetic interference.
Description of drawings
Fig. 1 is the structured flowchart of the utility model plug-in unit;
Fig. 2 is the structured flowchart of CPU card.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in detail.
The utility model provides a kind of microcomputer protecting device hardware platform, as shown in Figure 1, comprises CPU card, sampling plug-in and output inserter; Also comprise the bus plug-in unit that is connected with CPU card, sampling plug-in and output inserter.Bus plug-in unit and CPU card, sampling plug-in and output inserter adopt supporting interface, are convenient to other plug-in unit access interface, and the signal of other plug-in units is realized exchanges data by the bus plug-in unit.When needs detect, keep in repair or change some plug-in units, this plug-in unit can be extracted the bus plug-in unit and carry out maintain and replace, other plug-in units are appointed and so are fixedly connected on the bus plug-in unit, and can not change its operating state.Therefore, safeguarding in the testing process of a certain plug-in unit, other plug-in units can not be damaged, and make the easier detection of hardware platform, and stability strengthens.
As shown in Figure 2, the CPU card of microcomputer protecting device hardware platform comprises CPU management and the communication module that is connected with CPU management, also comprise protection CPU and with opening into circuit and digital output circuit of being connected of protection CPU.The microcomputer protecting device hardware platform also is provided with the front panel that is connected with CPU management, and front panel comprises display, indicator light and touch key-press.The signal of gathering the plug-in unit collection is transferred to and sends to front panel after CPU management is handled, and shows corresponding data at display, and by the indicator light show state.The signal of gathering arrives protection CPU by the channel transfer of bus plug-in unit, and protection CPU sends to and the output inserter of protecting CPU to be connected after handling through signal, and output inserter comprises relay module, makes hardware platform can realize warning function.
Open into circuit and be used for the extraneous on off state of monitoring, and transfer signals to protection CPU, protection CPU is transferred to digital output circuit after signal is handled.Digital output circuit is connected with relay module, can cooperate built-in operation circuit directly to excise load and faulty line, simultaneously abnormality is sent alarm.
In order to prevent that module is subjected to electromagnetism phase mutual interference between outside electromagnetic interference and the module, between CPU management and protection CPU, be provided with the magnetic isolator; At communication module, open circuit and digital output circuit is connected with photoisolator.
Further, described CPU card comprises the frequency acquisition module that is connected with protection CPU, and sampling plug-in comprises 16 A/D sampling modules.Described A/D sampling module has used two 16 bit AD samples, can realize the collection of high-precision analog amount, simultaneously change the sampling time according to frequency acquisition module tracking system frequency, certainty of measurement in 45HZ ~ 55HZ frequency range can reach 0.2 class precision, need not to adjust at the scene sampling precision.
Further, the microcomputer protecting device hardware platform also comprises RAM module and the FIASH module that is connected with protection CPU.Described RAM module and FLASH module have superior storage capacity, are convenient to storage and preserve operation power parameter, fault data and fault waveform, are convenient to the user and accurately locate.
Further, described protection CPU is connected by SPI with CPU management, can make both carry out exchanges data.
Though by reference to the accompanying drawings embodiment of the present utility model is described in detail, should not be construed as the restriction to the protection range of this patent.In the described scope of claims, the various modifications that those skilled in the art can make without creative work and distortion still belong to the protection range of this patent.
Claims (5)
1. a microcomputer protecting device hardware platform comprises CPU card, sampling plug-in and output inserter, it is characterized in that: also comprise the bus plug-in unit that is connected with CPU card, sampling plug-in and output inserter;
Described CPU card comprises CPU management and the communication module that is connected with CPU management, also comprise protection CPU and with opening into circuit and digital output circuit of being connected of protection CPU;
Be provided with the magnetic isolator between described CPU management and the protection CPU;
Described communication module, open on circuit and the digital output circuit and be connected with photoisolator.
2. microcomputer protecting device hardware platform according to claim 1 is characterized in that: the frequency acquisition module that described CPU card comprises and protection CPU is connected.
3. microcomputer protecting device hardware platform according to claim 1, it is characterized in that: described sampling plug-in comprises 16 A/D sampling modules.
4. microcomputer protecting device hardware platform according to claim 1 is characterized in that: also comprise the RAM module and the FIASH module that are connected with protection CPU.
5. microcomputer protecting device hardware platform according to claim 1, it is characterized in that: described protection CPU is connected by SPI with CPU management.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320128087 CN203166491U (en) | 2013-03-20 | 2013-03-20 | Hardware platform of microcomputer protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320128087 CN203166491U (en) | 2013-03-20 | 2013-03-20 | Hardware platform of microcomputer protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203166491U true CN203166491U (en) | 2013-08-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320128087 Expired - Fee Related CN203166491U (en) | 2013-03-20 | 2013-03-20 | Hardware platform of microcomputer protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203166491U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103779968A (en) * | 2014-03-04 | 2014-05-07 | 株洲高新电业股份有限公司 | 10KV wireless communication distribution network microcomputer protection device |
-
2013
- 2013-03-20 CN CN 201320128087 patent/CN203166491U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103779968A (en) * | 2014-03-04 | 2014-05-07 | 株洲高新电业股份有限公司 | 10KV wireless communication distribution network microcomputer protection device |
| CN103779968B (en) * | 2014-03-04 | 2016-06-29 | 株洲高新电业股份有限公司 | A kind of 10kV radio communication distribution microcomputer protecting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130828 Termination date: 20160320 |