CN101764729A - Serial server having switching function - Google Patents
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- CN101764729A CN101764729A CN200910188761A CN200910188761A CN101764729A CN 101764729 A CN101764729 A CN 101764729A CN 200910188761 A CN200910188761 A CN 200910188761A CN 200910188761 A CN200910188761 A CN 200910188761A CN 101764729 A CN101764729 A CN 101764729A
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Abstract
The invention discloses a serial server having a switching function. The serial server comprises a power supply, an Ethernet interface circuit, an Ethernet switch chip, a serial interface circuit, a universal asynchronous receiver/transmitter (UART) chip, an ROM/FLASH, an RAM and a processor, wherein the Ethernet switch chip is connected with the Ethernet interface circuit and used for realizing an Ethernet switching function; the UART chip is connected with the serial interface circuit and used for realizing various different serial functions; the processor is connected with the RAM, ROM/FLASH respectively and used for operating a main program of the serial server; and the processor is also connected with the Ethernet switch chip and the UART chip respectively. In the serial server, the Ethernet switching function is integrated to the serial server, so that the accessing mode of the conventional Ethernet serial server is fundamentally changed, not only a star connection, a chain connection and a tree connection can be realized, but also a safer ring network connection can be realized by combining an Ethernet ring network algorithm. Therefore, the serial server having the switching function has wide application prospect in the field of industrial control.
Description
Technical field
The present invention relates to communication technique field, relate in particular to a kind of serial server with function of exchange.
Background technology
Along with the continuous development of ethernet technology, increasing field level equipment begins to adopt the main interface of Ethernet as data communication.Yet also have numerous serial equipment still to exist at the Industry Control scene, serial server becomes the best equipment that the existing serial equipment of solution is networked immediately undoubtedly.
Serial server is actually a kind of protocol conversion device, usually serial server has an Ethernet interface and one or more serial line interface, the user can utilize serial server to become Ethernet data to transmit the data transaction of user's serial equipment, thereby reaches the purpose of networking.
Yet in the middle of actual use,, must rely on ethernet switching device to carry out Y-connection, as shown in Figure 1 because serial server networking pattern is single.Therefore influenced the application of serial server greatly at the Industry Control scene.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of serial server with function of exchange.
For solving the problems of the technologies described above, the objective of the invention is to be achieved through the following technical solutions.
A kind of serial server with function of exchange comprises: power supply, ethernet interface circuit, Ethernet switching chip, serial interface circuit, the universal asynchronous reception of UART/transmission chip, ROM/FLASH, RAM and processor;
Described Ethernet switching chip links to each other with ethernet interface circuit, is used for the realization of Ethernet function of exchange;
Described UART chip links to each other with serial interface circuit, is used for the realization of various different serial port functions;
Described processor links to each other with RAM, ROM/FLASH respectively, is used for the operation of serial server maim body; Described processor also links to each other with the UART chip with Ethernet switching chip respectively.
Wherein, also comprise: the LED indicating circuit, described LED indicating circuit links to each other with processor, is used to realize the indication of product function and ruuning situation.
Wherein, also comprise: EEPROM (Electrically Erasable Programmable Read Only Memo) EEPROM, described EEPROM links to each other with processor, is used to store the configuration information of user to serial server.
Wherein, adopt the MII/RMII interface to realize between described Ethernet chip and the processor.
Above technical scheme as can be seen, the present invention has following beneficial effect:
The present invention is by being integrated into the Ethernet function of exchange in the serial server, thereby fundamentally changed the networking mode of existing Ethernet serial server, can realize that not only Y-connection, chain connect, tree-like connection, and in conjunction with Ethernet looped network algorithm, can realize safer looped network connected mode, be with a wide range of applications at industrial control field.
Description of drawings
Fig. 1 is existing serial server networking schematic diagram;
Fig. 2 is a serial server structured flowchart of the present invention;
Fig. 3 is the embodiment of the invention 1 a chain structure networking schematic diagram;
Fig. 4 is the embodiment of the invention 2 a tree structures networking schematic diagram;
Fig. 5 is the embodiment of the invention 3 a loop configuration networking schematic diagram.
Embodiment
Core concept of the present invention: the present invention is by being integrated into the Ethernet function of exchange in the serial server, (this class chip is very abundant to use Ethernet switching chip, the BCM5325E of broadcom company etc. for example) substitutes single ethernet controller or PHY chip in the existing serial server, thereby make serial server self possess function of exchange, fundamentally change the networking mode of existing Ethernet serial server, realized networking modes such as the Y-connection of Ethernet serial server, chain connection, tree-like connection.
For ease of the present invention is further understood, now reach specific embodiment in conjunction with the accompanying drawings and describe the present invention.
See also shown in Figure 2ly, comprising: power supply, ethernet interface circuit, Ethernet switching chip, serial interface circuit, UART (universal asynchronous reception/transmission) chip, processor, LED indicating circuit, RAM, ROM or FLASH, EEPROM (EEPROM (Electrically Erasable Programmable Read Only Memo));
Power supply is used to each built-up circuit to provide work required power supply;
Ethernet switching chip links to each other with ethernet interface circuit, is used for the realization of Ethernet function of exchange;
The UART chip links to each other with serial interface circuit, is used for the realization of various different serial port functions;
The LED indicating circuit links to each other with processor, is used to realize the indication of product function and ruuning situation;
Processor links to each other with RAM, ROM or FLASH respectively, is used for the operation of serial server maim body;
EEPROM links to each other with processor, is used to store the configuration information of user to serial server, if with information stores in FLASH this part can ignore; Processor also links to each other with the UART chip with Ethernet switching chip respectively.
Connected mode is varied between above-mentioned Ethernet chip and the processor, can adopt the MII/RMII interface to realize usually.
On the basis of above-mentioned hardware, not only can realize having the serial server of exchange capacity, and, can also realize a series of network functions such as VLAN, IGMP, broadcast storm are drawn up, QOS in conjunction with the exchanger chip resource, improve the range of application of serial server greatly.
The present invention is by being integrated into the Ethernet function of exchange in the serial server, thereby fundamentally changed the networking mode of existing Ethernet serial server, can realize that not only chain connects (Fig. 3), tree-like connection (Fig. 4), annular connects (Fig. 5), and, can realize safer looped network connected mode in conjunction with Ethernet looped network algorithm.
More than a kind of serial server with function of exchange provided by the present invention is described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (4)
1. the serial server with function of exchange is characterized in that, comprising: power supply, ethernet interface circuit, Ethernet switching chip, serial interface circuit, the universal asynchronous reception of UART/transmission chip, ROM/FLASH, RAM and processor;
Described Ethernet switching chip links to each other with ethernet interface circuit, is used for the realization of Ethernet function of exchange;
Described UART chip links to each other with serial interface circuit, is used for the realization of various different serial port functions;
Described processor links to each other with RAM, ROM/FLASH respectively, is used for the operation of serial server maim body; Described processor also links to each other with the UART chip with Ethernet switching chip respectively.
2. the serial server with function of exchange according to claim 1 is characterized in that, also comprises: the LED indicating circuit, described LED indicating circuit links to each other with processor, is used to realize the indication of product function and ruuning situation.
3. the serial server with function of exchange according to claim 1 is characterized in that, also comprises: EEPROM (Electrically Erasable Programmable Read Only Memo) EEPROM, described EEPROM links to each other with processor, is used to store the configuration information of user to serial server.
4. the serial server with function of exchange according to claim 1 is characterized in that, adopts the MII/RMII interface to realize between described Ethernet chip and the processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910188761A CN101764729B (en) | 2009-12-09 | 2009-12-09 | Serial server having switching function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910188761A CN101764729B (en) | 2009-12-09 | 2009-12-09 | Serial server having switching function |
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| CN101764729A true CN101764729A (en) | 2010-06-30 |
| CN101764729B CN101764729B (en) | 2012-10-17 |
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| CN200910188761A Active CN101764729B (en) | 2009-12-09 | 2009-12-09 | Serial server having switching function |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102624738A (en) * | 2012-03-28 | 2012-08-01 | 瑞斯康达科技发展股份有限公司 | Serial port server, protocol conversion chip and data transmission method |
| CN102833112A (en) * | 2012-08-31 | 2012-12-19 | 深圳市中电电力技术股份有限公司 | Communication management machine having looped network function |
| CN104579538A (en) * | 2013-10-09 | 2015-04-29 | 上海市计算技术研究所 | Data transmission method and data transmission device |
| US9075820B2 (en) | 2012-07-30 | 2015-07-07 | Hewlett-Packard Development Company, L.P. | Distributed file system at network switch |
| CN104811337A (en) * | 2015-04-07 | 2015-07-29 | 安徽康海时代科技有限公司 | Serial server |
| CN106506407A (en) * | 2016-11-09 | 2017-03-15 | 湖南戈人自动化科技有限公司 | A kind of T-shaped Ethernet interconnection device |
| CN106528486A (en) * | 2016-11-09 | 2017-03-22 | 湖南戈人自动化科技有限公司 | Method for exchanging serial port data |
| CN108667706A (en) * | 2018-05-21 | 2018-10-16 | 洛阳银杏科技有限公司 | The adjustable Ethernet serial server of serial ports quantity dynamic and its data transmission method |
| CN113382023A (en) * | 2021-08-12 | 2021-09-10 | 中广(绍兴)有线信息网络有限公司 | Method and system for cross-network supervision of private network |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201134814Y (en) * | 2007-12-29 | 2008-10-15 | 广州致远电子有限公司 | Minimized built-in Ethernet serial port conversion module |
| CN101262476B (en) * | 2008-03-18 | 2012-04-11 | 中兴通讯股份有限公司 | A communication system and method for Ethernet |
| CN201571078U (en) * | 2009-12-09 | 2010-09-01 | 熊伟 | Serial port server with Ethernet ring net redundance function |
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2009
- 2009-12-09 CN CN200910188761A patent/CN101764729B/en active Active
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102624738A (en) * | 2012-03-28 | 2012-08-01 | 瑞斯康达科技发展股份有限公司 | Serial port server, protocol conversion chip and data transmission method |
| CN102624738B (en) * | 2012-03-28 | 2014-08-27 | 瑞斯康达科技发展股份有限公司 | Serial port server, protocol conversion chip and data transmission method |
| US9075820B2 (en) | 2012-07-30 | 2015-07-07 | Hewlett-Packard Development Company, L.P. | Distributed file system at network switch |
| CN102833112A (en) * | 2012-08-31 | 2012-12-19 | 深圳市中电电力技术股份有限公司 | Communication management machine having looped network function |
| CN102833112B (en) * | 2012-08-31 | 2014-11-05 | 深圳市中电电力技术股份有限公司 | Communication management machine having looped network function |
| CN104579538A (en) * | 2013-10-09 | 2015-04-29 | 上海市计算技术研究所 | Data transmission method and data transmission device |
| CN104811337A (en) * | 2015-04-07 | 2015-07-29 | 安徽康海时代科技有限公司 | Serial server |
| CN106506407A (en) * | 2016-11-09 | 2017-03-15 | 湖南戈人自动化科技有限公司 | A kind of T-shaped Ethernet interconnection device |
| CN106528486A (en) * | 2016-11-09 | 2017-03-22 | 湖南戈人自动化科技有限公司 | Method for exchanging serial port data |
| CN106506407B (en) * | 2016-11-09 | 2019-08-27 | 湖南戈人自动化科技有限公司 | A kind of T-type Ethernet interconnection device |
| CN108667706A (en) * | 2018-05-21 | 2018-10-16 | 洛阳银杏科技有限公司 | The adjustable Ethernet serial server of serial ports quantity dynamic and its data transmission method |
| CN108667706B (en) * | 2018-05-21 | 2020-09-18 | 洛阳银杏科技有限公司 | Ethernet serial server with dynamically adjustable serial number and data transmission method thereof |
| CN113382023A (en) * | 2021-08-12 | 2021-09-10 | 中广(绍兴)有线信息网络有限公司 | Method and system for cross-network supervision of private network |
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| Publication number | Publication date |
|---|---|
| CN101764729B (en) | 2012-10-17 |
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Effective date of registration: 20171010 Address after: The 1 District of Nanshan District high tech Industrial Park, Xili Street Baiwang letter 518052 Shenzhen city in Guangdong province 3 Patentee after: Sanwang Communication Technology Co., Ltd.Shenzhen Address before: 801, room 4, 518057, pure coastal building, interchange, Shahe West Road and Binhe Road, Shenzhen, Nanshan District, Guangdong Patentee before: Xiong Wei |
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Address after: 518052 Three Blocks of Baiwangxin High-tech Industrial Park, Xili Street, Nanshan District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Sanwang Communication Co., Ltd. Address before: 518052 Shenzhen Nanshan District Xili Street Baiwangxin High-tech Industrial Park 1 District 3 Patentee before: Sanwang Communication Technology Co., Ltd.Shenzhen |