CN201274491Y - Topology structure for serial bus - Google Patents
Topology structure for serial bus Download PDFInfo
- Publication number
- CN201274491Y CN201274491Y CNU2008201218831U CN200820121883U CN201274491Y CN 201274491 Y CN201274491 Y CN 201274491Y CN U2008201218831 U CNU2008201218831 U CN U2008201218831U CN 200820121883 U CN200820121883 U CN 200820121883U CN 201274491 Y CN201274491 Y CN 201274491Y
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- computer
- serial bus
- electric appliance
- intelligent electric
- electrical appliance
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Abstract
The utility model relates to a topology structure of serial bus, comprising a computer and an intelligent electrical appliance. The computer is connected with the electrical appliance by an RS-485 bus. The topology structure of serial bus adopts the RS-485 bus the interfaces of which are of general-purpose interfaces; wherein, each interface is applicable to all types of appliances, thereby being free of providing different interfaces and protocols for different electrical appliances. The topology structure of serial bus also has the function of automatic identification and configuration. When an electrical appliance is connected with the serial bus of the intelligent electrical appliance, and if the computer is running, the computer can automatically identify the type of the connected electrical appliance and load a corresponding driver, thereby realizing the function of data communication. The RS-485 is standardized to adopt twisted pair cables for convenient connection; and the case of the computer does not need to be opened for adding an expansion card for each perpheral.
Description
Technical field
The utility model relates to a kind of topological structure of universal serial bus.
Background technology
In the prior art, intelligent electric appliance is linked to each other with computer, have multiple mode.For example, adopt USB interface.The deficiency of this mode is that the data transmission distance of USB interface is a 1-2 rice, can't satisfy the demand of practical application.Simultaneously, the plug-in USB device number of USB interface often has only several, and this has influenced user's use.
The utility model content
Technical problem to be solved in the utility model provides and a kind ofly can realize intelligent electric appliance linked to each other with computer and the topological structure of the universal serial bus that data transmission distance is far away.
For solving the problems of the technologies described above, the utility model provides a kind of topological structure of universal serial bus, comprising: computer and intelligent electric appliance; Link to each other by the RS-485 bus between computer and the intelligent electric appliance.
In the described technical scheme, described intelligent electric appliance is 1 to 32.
In the described technical scheme, the spacing between described computer and the intelligent electric appliance is less than 1200 meters.
Be provided with repeater between described computer and the intelligent electric appliance.
In the described technical scheme, also comprise hub; Intelligent electric appliance links to each other with hub by the RS-485 bus, and hub links to each other with computer by the RS-485 bus.
In the described technical scheme, be provided with repeater between hub and the computer.
In the described technical scheme, be provided with repeater between intelligent electric appliance and the hub.
The utlity model has positive effect: the topological structure of (1) universal serial bus of the present utility model adopts the RS-485 bus, and its interface is a general-purpose interface, and an interface is applicable to the electrical equipment of different model.Do not need to prepare different interface and agreement for different electrical equipment.Secondly, it has automatic identification and configuration feature.When the user is connected to intelligent electric appliance serial bus with electrical equipment, if when computer is in running status, computer can be discerned the type that inserts electrical equipment automatically, and loads the corresponding driving program, realizes data communication function.The RS-485 standard adopts twisted-pair feeder conveniently to connect.Computer cabinet need do not opened, for each peripheral hardware increases expansion card.Once more, it supports hot plug.Electrical equipment be can at any time connect and disconnect, and, computer and external electrical equipment can not damaged no matter whether computer system starts shooting.After electrical equipment inserted, computer system can detect the electrical equipment of access.Its transmission speed reaches 100Kb/s, and to compare data transmission bauds fast with RS-232, satisfies the requirement of general power distribution system data communication speed.
Description of drawings
Fig. 1 is the schematic diagram of the topological structure of universal serial bus of the present utility model;
Fig. 2 is another schematic diagram of the topological structure of universal serial bus of the present utility model.
Embodiment
(embodiment 1)
See Fig. 1-2, the topological structure of the universal serial bus of present embodiment comprises: computer 1 and intelligent electric appliance 3; Link to each other by RS-485 bus 2 between computer 1 and the intelligent electric appliance 3.Intelligent electric appliance 3 is 3.Spacing between described computer 1 and the intelligent electric appliance 3 is less than 1200 meters.Be provided with repeater 4 between described computer 1 and the intelligent electric appliance 3.Intelligent electric appliance 3 links to each other with hub 5 by RS-485 bus 2, and hub 5 links to each other with computer 1 by RS-485 bus 2.Be provided with repeater 4 between hub 5 and the computer 1.Be provided with repeater 4 between intelligent electric appliance 3 and the hub 5.
The topological structure of the universal serial bus of present embodiment adopts the RS-485 bus, and its interface is a general-purpose interface, and an interface is applicable to the electrical equipment of different model.Do not need to prepare different interface and agreement for different electrical equipment.Secondly, it has automatic identification and configuration feature.When the user is connected to intelligent electric appliance serial bus with electrical equipment, if when computer is in running status, computer can be discerned the type that inserts electrical equipment automatically, and loads the corresponding driving program, realizes data communication function.The RS-485 standard adopts twisted-pair feeder conveniently to connect.Computer cabinet need do not opened, for each peripheral hardware increases expansion card.Once more, it supports hot plug.Electrical equipment be can at any time connect and disconnect, and, computer and external electrical equipment can not damaged no matter whether computer system starts shooting.After electrical equipment inserted, computer system can detect the electrical equipment of access.Its transmission speed reaches 100Kb/s, and to compare data transmission bauds fast with RS-232, satisfies the requirement of general power distribution system data communication speed.
Obviously, the foregoing description of the present utility model only is for the utility model example clearly is described, and is not to be qualification to execution mode of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all execution modes.And these belong to conspicuous variation or the change that spirit of the present utility model extended out and still are among the protection range of the present utility model.
Claims (7)
1, a kind of topological structure of universal serial bus is characterized in that: comprising: computer (1) and intelligent electric appliance (3); Link to each other by RS-485 bus (2) between computer (1) and the intelligent electric appliance (3).
2, the topological structure of a kind of universal serial bus according to claim 1 is characterized in that: described intelligent electric appliance (3) is 1 to 32.
3, the topological structure of a kind of universal serial bus according to claim 1 and 2 is characterized in that: the spacing between described computer (1) and the intelligent electric appliance (3) is less than 1200 meters.
4, the topological structure of a kind of universal serial bus according to claim 1 and 2 is characterized in that: be provided with repeater (4) between described computer (1) and the intelligent electric appliance (3).
5, the topological structure of a kind of universal serial bus according to claim 1 and 2 is characterized in that: also comprise hub (5); Intelligent electric appliance (3) links to each other with hub (5) by RS-485 bus (2), and hub (5) links to each other with computer (1) by RS-485 bus (2).
6, the topological structure of a kind of universal serial bus according to claim 5 is characterized in that: be provided with repeater (4) between hub (5) and the computer (1).
7, the topological structure of a kind of universal serial bus according to claim 5 is characterized in that: be provided with repeater (4) between intelligent electric appliance (3) and the hub (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201218831U CN201274491Y (en) | 2008-07-29 | 2008-07-29 | Topology structure for serial bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201218831U CN201274491Y (en) | 2008-07-29 | 2008-07-29 | Topology structure for serial bus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201274491Y true CN201274491Y (en) | 2009-07-15 |
Family
ID=40884830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201218831U Expired - Lifetime CN201274491Y (en) | 2008-07-29 | 2008-07-29 | Topology structure for serial bus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201274491Y (en) |
-
2008
- 2008-07-29 CN CNU2008201218831U patent/CN201274491Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG PEOPLE ELECTRICAL APPLIANCE CO., LTD. Free format text: FORMER OWNER: PEOPLE ELECTRICAL APPLIANCES GROUP CO., LTD. Effective date: 20140528 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140528 Address after: 325604, Yueqing, Zhejiang province Liushi town wide industrial zone Patentee after: Zhejiang People Electrical Appliance Co., Ltd. Address before: 325604 Liushi people's Industrial Park, Zhejiang, Yueqing Patentee before: People Electrical Appliances Group Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20090715 |
|
| CX01 | Expiry of patent term |