CN205812086U - A kind of control system of online - Google Patents
A kind of control system of online Download PDFInfo
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- CN205812086U CN205812086U CN201620699576.6U CN201620699576U CN205812086U CN 205812086 U CN205812086 U CN 205812086U CN 201620699576 U CN201620699576 U CN 201620699576U CN 205812086 U CN205812086 U CN 205812086U
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Abstract
The utility model discloses a kind of control system of online, belong to fire-fighting and control informatization.Described control system of online includes one or more regional centralized unit, each described regional centralized unit includes: concentrator, region machine, star-like hub, star-like area end, wherein said star-like hub is connected by CAN with described concentrator, described star-like area end is connected by CAN with described region machine, and described star-like area end is connected in parallel on described star-like hub by optical fiber.Utilizing existing CAN technology, CAN signal is converted to fiber-optic signal, change existing transmission medium, it is achieved thereby that low-loss between fire alarm control unit, distance, Large Copacity, stability is high, and the network that capacity of resisting disturbance is strong connects.
Description
Technical field
This utility model relates to fire-fighting and controls informatization, particularly relates to the networking control of a kind of fire alarm control unit
System.
Background technology
Controller local area network (Controller Area Network, CAN) bus, is initially automotive interior intelligent
Control designed, be increasingly subject to people's attention.Networked gradually total by CAN by original RS485 bus between fire-fighting controller
Line networking replaces.
Owing to CAN transmission speed and transmission range are inversely proportional to, CAN transmission range is caused to pass at a high speed
Be limited by very large time defeated, even if transmission range can only achieve 10km in the case of lowest speed, so be not suitable for long away from
From transmission.CAN is differential voltage signal transmission, is vulnerable to the interference of site environment.CAN supporting bus itself is opened up
Flutter structure, the endpoint node of CAN, need to consider the problems such as terminal resistance.
Utility model content
For overcoming problem present in correlation technique, this utility model provides a kind of control system of online, is used for realizing fire
Remote, two-forty networking between calamity alarm controller.
One embodiment of this utility model provides a kind of control system of online, including one or more regional centralized lists
Unit, each described regional centralized unit includes: concentrator, region machine, star-like hub, star-like area end, wherein said star-like
Hub is connected by CAN with described concentrator, and described star-like area end is connected by CAN with described region machine,
Described star-like area end is connected in parallel on described star-like hub by optical fiber.
According to an embodiment of the present utility model, described star-like hub includes subtending port, and described subtending port is used
In cascading multiple regional centralized unit.
According to an embodiment of the present utility model, described cascade deep is less than 8.
According to an embodiment of the present utility model, the region machine number of each described regional centralized unit is less than 8.
According to an embodiment of the present utility model, described star-like hub uses the processor of Cortex-M4 kernel.
According to an embodiment of the present utility model, described star-like hub and star-like area end all include that CAN/ optical fiber turns
Die change block, described CAN/ fiber optic switching module is for realizing the conversion between CAN signal and fiber-optic signal.
By described CAN/ fiber optic switching module, the CAN signal of concentrator and region machine can be converted to fiber-optic signal, from
And be transmitted on the optical fiber of star-like area end connecting star-like hub, and then it is greatly improved the transmission range of signal.
According to an embodiment of the present utility model, when described subtending port is without tandem zones centralized unit, it is additionally operable to
Connect CRT monitor.
The technical scheme that embodiment of the present utility model provides can include following beneficial effect:
Utilize existing CAN technology, CAN signal is converted to fiber-optic signal, change existing transmission medium, thus real
Having showed low-loss between fire alarm control unit, distance, Large Copacity, stability is high, and the network that capacity of resisting disturbance is strong connects.
It should be appreciated that it is only exemplary and explanatory, not that above general description and details hereinafter describe
This utility model can be limited.
Accompanying drawing explanation
Fig. 1 is the structural representation of control system of online described in one embodiment of this utility model；
Fig. 2 is the signal transition diagram of one embodiment of this utility model.
Accompanying drawing herein is merged in description and constitutes the part of this specification, it is shown that meet of the present utility model
Embodiment, and be used for explaining principle of the present utility model together with description.
Detailed description of the invention
Here will illustrate exemplary embodiment in detail, its example represents in the accompanying drawings.Explained below relates to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represents same or analogous key element.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with this utility model.On the contrary, they be only with such as
The example of the device that aspects that described in detail in appended claims, more of the present utility model are consistent.
The networking blueprint of the many employings of the control system of online " regional centralized " between fire-fighting controller, has region machine management
While controlling fire protection warning and the interlocking equipment of a certain local, then the information of region machine is uploaded concentrator.
CAN is between fire-fighting controller, the networking mode that existing use is most, and it has the strongest protocol function,
Short haul connection speed is higher, and when remote, speed is the lowest, is unfit to do long haul communication.CAN can not connect star-like always
Line, holding wire individually to connect, and uses CAN the most improper as star-like hub, and it is often as the branch of big system
Line.
In order to take into account transmission range and the transfer rate of networking between fire-fighting controller, and ensure that message capacity is with reliable
Property, this utility model will provide a kind of control system of online, to solve the technical problem in above-mentioned scene.
Shown in Figure 1, it is shown that an embodiment of the control system of online between fire alarm control unit, figure shows
The described control system of online gone out include two regional centralized unit 100, described regional centralized unit 100 include concentrator 102,
Region machine 104, star-like hub 106 and star-like area end 108；Wherein, star-like hub 106 passes through with described concentrator 102
CAN connects, and star-like area end 108 is connected by CAN with described region machine 104, and described star-like area end 108 is passed through
Optical fiber is connected in parallel on described star-like hub 106, it is achieved form stelliform connection topology configuration between fire alarm control unit.Two
Regional centralized unit 100 realizes cascade by the subtending port (not shown) on described star-like hub 106.
According to an embodiment of the present utility model, it is preferred that a regional centralized unit 100 includes a concentrator
102 and multiple regions machine 104, the number of region machine 104 is less than 8.If fire alarm control unit in user satellite l network
When quantity is more than 9 (102,8 region machines 104 of 1 concentrator), need by cascading other regional centralized unit 100 real
The networking of existing fire alarm control unit.If user needs the fire alarm control unit of networking less than or equal to 9, then star-like
The subtending port of hub 106, can connect other equipment, such as cathode ray tube (Cathode Ray Tube, CRT) display
Device, it is also possible to connect the networking card of other type, such as bus-type, annular, constitute more complicated hybrid network and open up
Flutter structure, if user does not has demand, described subtending port to leave unused.
According to an embodiment of the present utility model, the depth capacity of multiple regional centralized unit 100 cascade is by star-like
The software function of hub 106 and assignable device address number together decide on.Such as, the equipment of fire alarm control unit
Address number is 0-63, and i.e. in network, region machine 104 quantity of maximum fire alarm control unit is 64, so star-like hub
106 support that maximum cascade deep is 64/8=8.Concrete cascade deep is how many, can be according to district in the star network of user
The quantity of territory machine 104 calculates, and computing formula is: region machine 104 quantity is divided by 8, if not dividing exactly the region machine 104 that adds 1.
During less than 8, the external interface of regional centralized unit 100 will not change, and simply subtending port leaves unused or as other
Function is used.
The physical transmission medium of described CAN can use 0.5-1.5mm2Twisted-pair feeder, according to transmission range not
With, select adequate shielding twisted-pair feeder: 0.5mm2Twisted-pair feeder be suitable for 100 meters within, 0.75mm2Twisted-pair feeder be suitable for 400
Within meter, 1mm2Twisted-pair feeder be suitable for 1km within, 1.5mm2Twisted-pair feeder be suitable for 2km within, etc., this utility model pair
This does not limits, and user can select suitable twisted-pair feeder as required.
Use fiber-optic transfer between star-like hub 106 and star-like area end 108, the loss of optical fiber is low, relaying away from
From length, message capacity is big, capability of resistance to radiation is strong, can be used under industrial environment or other special environments, and using fiber-optic transfer is one
Plant the more efficient stable mode of telecommunication.
Transmit due to the data between concentrator 102 from region machine 104 and transmit on two kinds of different physical mediums, therefore
Need the conversion needing to realize transmission signal while physical media conversion, thus match from different physical mediums.
As in figure 2 it is shown, according to an embodiment of the present utility model, described star-like hub 106 and star-like area end 108
It is respectively provided with CAN/ fiber optic switching module, for realizing the conversion between CAN signal and fiber-optic signal.
By described CAN/ fiber optic switching module, the CAN signal of concentrator 102 and region machine 104 can be converted to optical fiber
Signal, thus be transmitted on the optical fiber of star-like area end 108 connecting star-like hub 106, and then it is greatly improved signal
Transmission range.Specifically, when realizing the function of concentrator 102 control area machine 104, star-like hub 106 is total by CAN
Line gathers the CAN signal of fire alarm control unit concentrator, and by CAN/ fiber optic switching module, CAN signal is converted to optical fiber
Signal is transferred to star-like area end 108；When star-like area end 108 receives fiber-optic signal, by CAN/ fiber optic switching module, by light
Optical fiber signaling is converted under CAN signal passes to fire alarm control unit region machine 104.At feasible region machine 104 to concentrator 102
When uploading data function, star-like area end 108 gathers the CAN signal of fire alarm control unit region machine 104 by CAN,
And by CAN/ fiber optic switching module, CAN signal is converted to fiber-optic signal and is uploaded to star-like hub 106；Star-like hub
106 when receiving fiber-optic signal, by CAN/ fiber optic switching module, fiber-optic signal is converted into CAN signal and is uploaded to fire alarm control
Device concentrator 102 processed.
Star-like hub enhances CAN communication robust, increases by CAN signal is converted into signal transmission through fiber
Add the transmission range of CAN, complete CAN data transmitting on Star Network.
According to an embodiment of the present utility model, described star-like hub uses the processor of Cortex-M4 kernel.This
Skilled person it should be appreciated that star-like hub can also use other be capable of the single-chip microcomputer of identical function or
Processor.
Concentrator described in above example and region machine are fire alarm control unit, and those skilled in the art should
Being understood by, shown concentrator and region machine can also be other fire-fighting quasi-controllers.
It should be appreciated that this utility model is not limited to accurate knot described above and illustrated in the accompanying drawings
Structure, and various modifications and changes can carried out without departing from the scope.Scope of the present utility model is only wanted by appended right
Ask and limit.
Claims (7)
1. a control system of online, it is characterised in that include one or more regional centralized unit, each described regional centralized
Unit includes: concentrator, region machine, star-like hub, star-like area end, and wherein said star-like hub leads to described concentrator
Crossing CAN to connect, described star-like area end is connected by CAN with described region machine, and described star-like area end passes through light
Fibre is connected in parallel on described star-like hub.
Control system of online the most according to claim 1, it is characterised in that described star-like hub includes subtending port, institute
State subtending port cascade between multiple regional centralized unit.
Control system of online the most according to claim 2, it is characterised in that described cascade deep is less than 8.
Control system of online the most according to claim 1, it is characterised in that the region machine of each described regional centralized unit
Number is less than 8.
Control system of online the most according to claim 1, it is characterised in that in described star-like hub uses Cortex-M4
The processor of core.
Control system of online the most according to claim 1, it is characterised in that described star-like hub all wraps with star-like area end
Including CAN/ fiber optic switching module, described CAN/ fiber optic switching module is for realizing the conversion between CAN signal and fiber-optic signal.
Control system of online the most according to claim 2, it is characterised in that described subtending port is concentrated single without tandem zones
During unit, it is additionally operable to connect CRT monitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620699576.6U CN205812086U (en) | 2016-07-05 | 2016-07-05 | A kind of control system of online |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620699576.6U CN205812086U (en) | 2016-07-05 | 2016-07-05 | A kind of control system of online |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205812086U true CN205812086U (en) | 2016-12-14 |
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| CN201620699576.6U Active CN205812086U (en) | 2016-07-05 | 2016-07-05 | A kind of control system of online |
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| Country | Link |
|---|---|
| CN (1) | CN205812086U (en) |
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2016
- 2016-07-05 CN CN201620699576.6U patent/CN205812086U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 100176 floors 1-4, building 2, No.17, Rongjing East Street, Beijing Economic and Technological Development Zone, Daxing District, Beijing Patentee after: Beijing Lida Huaxin Electronics Co.,Ltd. Address before: 100176 floors 1-4, building 2, No. 17, Rongjing East Street, economic and Technological Development Zone, Daxing District, Beijing Patentee before: BEIJING LEADER HUAXIN ELECTRONIC Co.,Ltd. |