CN204180105U - distribution line online monitoring data terminal - Google Patents
distribution line online monitoring data terminal Download PDFInfo
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- CN204180105U CN204180105U CN201420736483.7U CN201420736483U CN204180105U CN 204180105 U CN204180105 U CN 204180105U CN 201420736483 U CN201420736483 U CN 201420736483U CN 204180105 U CN204180105 U CN 204180105U
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- distribution line
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- online monitoring
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 46
- 238000004891 communication Methods 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000005538 encapsulation Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 239000000284 extract Substances 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 241001269238 Data Species 0.000 description 1
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model discloses a kind of distribution line online monitoring data terminal, by dedicated communications network access electric power safety access platform, described electric power safety access platform processes access information, distribution line on-line monitoring main website data be passed in electric power Intranet carries out Remote process with realization to described distribution line online monitoring data terminal, described distribution line online monitoring data terminal comprises the semaphore collecting unit connecting distribution line, connect the CPU of described semaphore collecting unit, and connect the communication unit of CPU and electric power safety access platform, comprise the encryption chip of the described communication unit that is of coupled connections further, communicate with the encryption safe between electric power safety access platform for distribution line online monitoring data terminal.
Description
Technical field
The utility model relates generally to electrical network power distribution communication technology, the safety encipher communication means particularly relating to a kind of distribution line online monitoring data terminal and realize on distribution line.
Background technology
In simple type power distribution automation typical scenario, distribution on-line monitoring terminal, as the data acquisition equipment installing medium-voltage distribution circuit, has obtained and has installed widely and apply.Traditional distribution on-line monitoring terminal directly adopts plaintext communication, access is installed by Utilities Electric Co. requirement about protecting information safety and wireless terminal cannot be met, therefore can only cannot access Utilities Electric Co.'s Intranet in public network erection, cause main website data to share and to merge.
Utility model content
The purpose of this utility model is the problem solving distribution on-line monitoring terminal security access electric power Intranet, it is also proposed a kind of communication information encryption mechanism simultaneously.In one aspect, the utility model distribution line online monitoring data terminal, by dedicated communications network access electric power safety access platform, described electric power safety access platform processes access information, distribution line on-line monitoring main website data be passed in electric power Intranet carries out Remote process with realization to described distribution line online monitoring data terminal, described distribution line online monitoring data terminal comprises the semaphore collecting unit connecting distribution line, connect the CPU of described semaphore collecting unit, and connect the communication unit of CPU and electric power safety access platform, comprise the encryption chip of the described communication unit that is of coupled connections further, communicate with the encryption safe between electric power safety access platform for distribution line online monitoring data terminal.
In one embodiment, described encryption chip is by central processing unit (CORE), the chip configuration unit be of coupled connections with CORE, reset controller (RSTC), clock, module (MIMO) concentrated by memory, embedded FLASH, WatchDog Timer (WDT), programmable Interrupt timer (INTC), static random access memory (SRAM), encryption processor (RSA), direct memory access (DMA) processor (DMAC) and real random number generator (TRNG) composition, described CORE connects SRAM and embedded FLASH by IP bus interface, and connect INTC further by IP bus interface, TRNG, RSA and WDT, described SRAM is connected MIMO further with embedded FLASH, and be controlled by DMAC, wherein by clock control INTC and TRNG.
In one embodiment, described encryption chip is configured to: after the data produced described CPU are encrypted encapsulation, be passed to described electric power safety access platform through communication unit and be passed to the data gateway of electric power Intranet after carrying out certification and deciphering, be dispensed to multiple servers of distribution line on-line monitoring main website by gateway.In another embodiment, a kind of safety encipher communication means of distribution line, realized based on described distribution line online monitoring data terminal, for setting up secure connection between described distribution line online monitoring data terminal and electric power safety access platform, it comprises: start to set up being once connected between described distribution line online monitoring data terminal and the server of electric power safety access platform; Produce random number by the TRNG of described encryption chip, control MIMO extracts the key in described encryption chip memory, sends to the server of electric power safety access platform to carry out key agreement action; Coded communication is set up by the RSA of described encryption chip and server; Server carries out certification and deciphering to enciphered data, the data after deciphering is dispensed to other multiple servers of distribution line on-line monitoring main website by gateway.
In one embodiment, if server carries out certification and deciphering error in operation to enciphered data, then reset signal is sent by the WDT of encryption chip to described RSA.
In one embodiment, extract corresponding key between the SRAM of described MIMO in encryption chip or embedded FLASH and send to server.
In one embodiment, described key agreement action comprises transmission encrypted frame, after its type of message of server identification and message length, extracts message content wherein.
The utility model has filled up the blank of distribution on-line monitoring end message secure accessing, researches and develops a kind of distribution on-line monitoring terminal of information encryption function.By integrated security encryption chip in distribution on-line monitoring terminal, solve the problem of (1) distribution on-line monitoring terminal equipment secure accessing certification; (2) message of information transmission is encrypted, eliminates because of the potential safety hazard that the information content is leaked or outer net is invaded and brought.Adopt the distribution on-line monitoring terminal of band encryption chip, access authentication one to one and the management of terminal can be realized, avoid illegal terminal connecting system; Adopt the distribution on-line monitoring terminal of band encryption chip, can guarantee that transinformation content is not decrypted, guarantee information transmission security.
Accompanying drawing explanation
Fig. 1 is the principal functional structure figure of the utility model distribution on-line monitoring terminal equipment;
Fig. 2 is the structure principle chart of encryption chip.
Embodiment
With reference to Fig. 1, distribution line online monitoring data terminal 1 accesses multiple servers 2 of electric power safety access platform by dedicated communications network (such as GPRS or WLAN), electric power safety access platform 2 pairs of access informations process, and distribution line on-line monitoring main website data be passed in electric power Intranet carries out Remote process with realization to described distribution line online monitoring data terminal 1.Wherein, distribution line online monitoring data terminal 1 comprises the semaphore collecting unit 11 connecting distribution line, be of coupled connections the CPU 11 of described semaphore collecting unit, and connect the communication unit 12 of CPU and electric power safety access platform server 2, comprise the encryption chip 13 of the described communication unit that is of coupled connections further, communicate with the encryption safe between electric power safety access platform 2 for distribution line online monitoring data terminal 1.
In one embodiment, CPU 11 1 clock alignment unit (OSCCLK as shown in Figure 1) are set to, for adjusting the clock of described encryption chip 13, as its external clock reference.
With reference to Fig. 2, encryption chip is by central processing unit (CORE) 301, the chip configuration unit 302 be of coupled connections with CORE, reset controller (RSTC) 313, clock 312, module (MIMO) 305 concentrated by memory, the embedded FLASH 304 of 256KB, WatchDog Timer (WDT) 310, programmable Interrupt timer (INTC) 311, 24KB static random access memory (SRAM) 303, encryption processor (RSA) 308, direct memory access (DMA) processor (DMAC) 307 and real random number generator (TRNG) 309 form, described CORE 301 arranges programming end JTAG for outer CPU programming, connect SRAM 303 and embedded FLASH 304 by IP bus interface 306, and connect INTC 311 further by IP bus interface 306, TRNG 309, RSA 308 and WDT 310, described SRAM 303 and embedded FLASH 304 are connected MIMO 305 and are controlled by DMAC 307 further, wherein by clock 312 control INTC 311 and TRNG 309.
In one embodiment, described encryption chip 13 is configured to: after being encrypted encapsulation to the data of described CPU 11 generation, be passed to described electric power safety access platform through communication unit 12 and be passed to the data gateway of electric power Intranet after carrying out certification and deciphering, be dispensed to multiple servers 2 of distribution line on-line monitoring main website by gateway.
In another embodiment, a kind of safety encipher communication means of distribution line, realized based on described distribution line online monitoring data terminal, for setting up secure connection between described distribution line online monitoring data terminal and electric power safety access platform, comprising: start to set up being once connected between described distribution line online monitoring data terminal and the server of electric power safety access platform; Produce random number by the TRNG of described encryption chip, control MIMO extracts the key in described encryption chip memory, sends to the server of electric power safety access platform to carry out key agreement action; Coded communication is set up by the RSA of described encryption chip 13 and server; Server carries out certification and deciphering to enciphered data, the data after deciphering is dispensed to other multiple servers of distribution line on-line monitoring main website by gateway.
If server 2 pairs of enciphered datas carry out certification and deciphering error in operation, then send reset signal by the WDT310 of encryption chip 13 to described RSA.
Extract corresponding key between the SRAM 303 of described MIMO 305 in encryption chip 3 or embedded FLASH 304 and send to server 2.
Described key agreement action comprises transmission encrypted frame, after its type of message of server identification and message length, extracts message content wherein.
Claims (3)
1. distribution line online monitoring data terminal, by dedicated communications network access electric power safety access platform, described electric power safety access platform processes access information, distribution line on-line monitoring main website data be passed in electric power Intranet carries out Remote process with realization to described distribution line online monitoring data terminal, described distribution line online monitoring data terminal comprises the semaphore collecting unit connecting distribution line, connect the CPU of described semaphore collecting unit, and connect the communication unit of CPU and electric power safety access platform, it is characterized in that: the encryption chip comprising the described communication unit that is of coupled connections further, communicate with the encryption safe between electric power safety access platform for distribution line online monitoring data terminal.
2. distribution line online monitoring data terminal according to claim 1, it is characterized in that described encryption chip is by central processing unit (CORE), the chip configuration unit be of coupled connections with CORE, reset controller (RSTC), clock, module (MIMO) concentrated by memory, embedded FLASH, WatchDog Timer (WDT), programmable Interrupt timer (INTC), static random access memory (SRAM), encryption processor (RSA), direct memory access (DMA) processor (DMAC) and real random number generator (TRNG) composition, described CORE connects SRAM and embedded FLASH by IP bus interface, and connect INTC further by IP bus interface, TRNG, RSA and WDT, described SRAM is connected MIMO further with embedded FLASH, and be controlled by DMAC, wherein by clock control INTC and TRNG.
3. distribution line online monitoring data terminal according to claim 1, it is characterized in that described encryption chip is configured to: after the data produced described CPU are encrypted encapsulation, be passed to described electric power safety access platform through communication unit and be passed to the data gateway of electric power Intranet after carrying out certification and deciphering, be dispensed to multiple servers of distribution line on-line monitoring main website by gateway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420736483.7U CN204180105U (en) | 2014-11-28 | 2014-11-28 | distribution line online monitoring data terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420736483.7U CN204180105U (en) | 2014-11-28 | 2014-11-28 | distribution line online monitoring data terminal |
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| CN204180105U true CN204180105U (en) | 2015-02-25 |
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| CN201420736483.7U Active CN204180105U (en) | 2014-11-28 | 2014-11-28 | distribution line online monitoring data terminal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104378383A (en) * | 2014-11-28 | 2015-02-25 | 国家电网公司 | Online distribution line monitoring data terminal and safe and encrypted communication method of distribution lines |
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- 2014-11-28 CN CN201420736483.7U patent/CN204180105U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104378383A (en) * | 2014-11-28 | 2015-02-25 | 国家电网公司 | Online distribution line monitoring data terminal and safe and encrypted communication method of distribution lines |
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