CN202406135U - Embedded electric energy acquisition gateway based on Cortex-M3 - Google Patents
Embedded electric energy acquisition gateway based on Cortex-M3 Download PDFInfo
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- CN202406135U CN202406135U CN2011205503403U CN201120550340U CN202406135U CN 202406135 U CN202406135 U CN 202406135U CN 2011205503403 U CN2011205503403 U CN 2011205503403U CN 201120550340 U CN201120550340 U CN 201120550340U CN 202406135 U CN202406135 U CN 202406135U
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Abstract
The utility model relates to an embedded electric energy acquisition gateway based on Cortex-M3, which belongs to the technical field of embedded computer. The gateway comprises an LM3S8962 processor adopting a Cortex-M3 architecture, an E1 to Ethernet module, a GPRS (general packet radio service) module, an RS232/RS485 (recommend standard) protocol conversion module, an extended memory module, an RJ45 interface and a power supply module, wherein the GPRS module and the RS232/RS485 protocol conversion module are connected with the LM3S8962 processor through an RS232 standard interface; the extended memory module is connected with the LM3S8962 processor through an I/O port; the RJ45 interface is connected with the LM3S8962 processor through a network transformer; the E1 to Ethernet module is connected with the RJ45 interface; the extended memory module is an Nand Flash and an EEPROM (electrically erasable programmable read - only memory); and the E1 to Ethernet module, the GPRS module and the RJ45 interface are transmission links for providing data to the embedded gateway.
Description
Technical field:
The utility model relates to a kind of electric energy acquisition embedded gateway based on Cortex-M3, belongs to the embedded computer technology field.
Technical background:
Core component as Internet of Things; Gateway plays a part very crucial at Internet of Things, along with the fast development of embedded technology, embedded gateway can provide profuse function; And can stably operate in various environment, so embedded gateway has received increasing concern.
As the key component of remote meter reading, the operability of embedded gateway has very big influence with stability to whole system.Though embedded gateway common on the market has versatility, be applied to some specific occasions, such as the electric energy management field, just have certain limitation, perfect inadequately such as the support of communication interface, ammeter agreement aspect.
Summary of the invention:
To the defective of prior art, the utility model provide a kind of reasonable in design, cost performance is high, the strong electric energy acquisition embedded gateway based on Cortex-M3 of stability.
A kind of electric energy acquisition embedded gateway based on Cortex-M3, it comprises that the LM3S8962 processor, the E1 that adopt the Cortex-M3 framework change ethernet module, GPRS module, RS232/RS485 protocol conversion module, outer extension memory module, RJ45 interface and power module; Said GPRS module links to each other through the RS232 standard serial port with the LM3S8962 processor with the RS232/RS485 protocol conversion module; Said outer extension memory module links to each other through universaling I/O port with the LM3S8962 processor; The RJ45 interface links to each other through network transformer with the LM3S8962 processor, and said E1 changes ethernet module and links to each other with the RJ45 interface; Said outer extension memory module is Nand Flash and EEPROM.
It is the transmission link that data are provided for this embedded gateway that described E1 changes ethernet module, GPRS module and RJ45 interface; The user selects one of them according to actual environment: if exist Ethernet interface then to use the RJ45 interface transmission data of this embedded gateway in the environment for use; Then adopt E1 to change ethernet module transmission data if having the E1 communication link in the environment for use, otherwise use GPRS module transmission data.
The RS485 EBI of described RS232/RS485 protocol conversion module is used to articulate ammeter, and ammeter is supported the ammeter communication protocol of standard.
The utility model compared with prior art, its remarkable advantage is to certain applications occasion design, supports the ammeter communication protocol DL/T 645-2007 of standard, has greatly simplified design cycle; Have abundant communication interface (GPRS, Ethernet and E1) simultaneously, be applicable to various operational environments, for data upload provides multiple choices.This gateway provides abundant communication interface (comprising GPRS, Ethernet and E1), and the ammeter communication protocol DL/T645-2007 of the standard of support.
Description of drawings:
Fig. 1 is each functions of modules block diagram of the utility model.
Wherein, 1, the LM3S8962 processor, 2, the RS232/RS485 protocol conversion module, 3, the GPRS module, 4, the outer extension memory module, 5, the RJ45 interface, 6, E1 changes ethernet module, 7, power module.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Embodiment:
A kind of electric energy acquisition embedded gateway based on Cortex-M3; As shown in Figure 1, it comprises that the LM3S8962 processor (1), the E1 that adopt the Cortex-M3 framework change ethernet module (6), GPRS module (3), RS232/RS485 protocol conversion module (2), outer extension memory module (4), RJ45 interface (5) and power module (7); Said GPRS module (3) links to each other through the RS232 standard serial port with LM3S8962 processor (1) with RS232/RS485 protocol conversion module (2); Said outer extension memory module (4) links to each other through universaling I/O port with LM3S8962 processor (1); RJ45 interface (5) links to each other through network transformer with LM3S8962 processor (1), and said E1 changes ethernet module (6) and links to each other with RJ45 interface (5); Said outer extension memory module (4) is Nand Flash and EEPROM.
It is the transmission link that data are provided for this embedded gateway that described E1 changes ethernet module (6), GPRS module (3) and RJ45 interface (5); The user selects one of them according to actual environment: if exist Ethernet interface then to use RJ45 interface (5) the transmission data of this embedded gateway in the environment for use; Then adopt E1 to change ethernet module (6) transmission data if having the E1 communication link in the environment for use, otherwise use GPRS module (3) transmission data.
The RS485 EBI of described RS232/RS485 protocol conversion module (2) is used to articulate ammeter, and ammeter is supported the ammeter communication protocol of standard.
Claims (3)
1. electric energy acquisition embedded gateway based on Cortex-M3; It is characterized in that, comprise that the LM3S8962 processor, the E1 that adopt the Cortex-M3 framework change ethernet module, GPRS module, RS232/RS485 protocol conversion module, outer extension memory module, RJ45 interface and power module; Said GPRS module links to each other through the RS232 standard serial port with the LM3S8962 processor with the RS232/RS485 protocol conversion module; Said outer extension memory module links to each other through universaling I/O port with the LM3S8962 processor; The RJ45 interface links to each other through network transformer with the LM3S8962 processor, and said E1 changes ethernet module and links to each other with the RJ45 interface; Said outer extension memory module is Nand Flash and EEPROM.
2. a kind of electric energy acquisition embedded gateway as claimed in claim 1 based on Cortex-M3; It is characterized in that; It is the transmission link that data are provided for this embedded gateway that described E1 changes ethernet module, GPRS module and RJ45 interface; The user selects one of them according to actual environment: if exist Ethernet interface then to use the RJ45 interface transmission data of this embedded gateway in the environment for use; Then adopt E1 to change ethernet module transmission data if having the E1 communication link in the environment for use, otherwise use GPRS module transmission data.
3. a kind of electric energy acquisition embedded gateway based on Cortex-M3 as claimed in claim 1 is characterized in that the RS485 EBI of described RS232/RS485 protocol conversion module is used to articulate ammeter, and ammeter is supported the ammeter communication protocol of standard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205503403U CN202406135U (en) | 2011-12-23 | 2011-12-23 | Embedded electric energy acquisition gateway based on Cortex-M3 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205503403U CN202406135U (en) | 2011-12-23 | 2011-12-23 | Embedded electric energy acquisition gateway based on Cortex-M3 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202406135U true CN202406135U (en) | 2012-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205503403U Expired - Fee Related CN202406135U (en) | 2011-12-23 | 2011-12-23 | Embedded electric energy acquisition gateway based on Cortex-M3 |
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| CN (1) | CN202406135U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102404255A (en) * | 2011-12-23 | 2012-04-04 | 山东大学 | Embedded gateway for collecting electric energy based on Cortex-M3 and work method thereof |
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2011
- 2011-12-23 CN CN2011205503403U patent/CN202406135U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102404255A (en) * | 2011-12-23 | 2012-04-04 | 山东大学 | Embedded gateway for collecting electric energy based on Cortex-M3 and work method thereof |
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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 |
Granted publication date: 20120829 Termination date: 20141223 |
|
| EXPY | Termination of patent right or utility model |