CN206021548U - Power information acquisition system and its deconcentrator - Google Patents
Power information acquisition system and its deconcentrator Download PDFInfo
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- CN206021548U CN206021548U CN201621038738.8U CN201621038738U CN206021548U CN 206021548 U CN206021548 U CN 206021548U CN 201621038738 U CN201621038738 U CN 201621038738U CN 206021548 U CN206021548 U CN 206021548U
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Abstract
A kind of power information acquisition system and its deconcentrator, which includes：Microprocessor, the RS485 interface circuits being connected with the microprocessor and some connecting valves, the connecting port being connected with the RS485 interface circuits and some epi-position interfaces being connected with these connecting valve difference one by one；Wherein, when RS485 network services are normal, these connecting valves are in connection status, and the connecting port connects into a RS485 bus with these epi-position interfaces, and the deconcentrator need not consume electric energy；When RS485 network services are abnormal, the deconcentrator can carry out fault detect by the power supply that outside provides, and now these connecting valves are controllable by the microprocessor and are in connected/disconnected state.This utility model can greatly improve the communication troubleshooting efficiency of power information acquisition system.
Description
Technical field
This utility model is related to power accessories, and the more particularly, to RS485 networks of power information acquisition system lead to
Letter.
Background technology
In the power information acquisition system of power system, power information collecting device（Harvester or concentrator）With ammeter it
Between communication mainly have Three models：Power carrier, micropower small wireless and RS485 buses.Wherein, RS485 mode bus into
This is minimum, and communicate minimum protected from environmental, is widely applied.But, because RS485 mode bus be in bus simultaneously
Connecing needs the ammeter of communication, and referring to Fig. 1, in existing this power information acquisition system 10a, several ammeters 2 are to be used in combination
The RS485 communication networks 3 of same RS485 buses composition are realized communicating with power information collecting device 1.Once, have arbitrary
There is locked or input impedance less than certain value in RS485 interfaces on individual ammeter 2, will make to be connected to this RS485 and lead to
All ammeters 2 on communication network 3 cannot be communicated with power information collecting device 1, cause RS485 communication paralysis.Due to one
2 quantity of ammeter connected on individual RS485 communication networks 3 is relatively more, and most can reach 128, therefore in troubleshooting,
Judge, the difficulty of the ammeter 2 of the appearance R485 failures positioned on a RS485 communication network 3 and workload big, cause to communicate
Troubleshooting efficiency is low.
Utility model content
The technical problems to be solved in the utility model is, based on the drawbacks described above of prior art, proposes a kind of deconcentrator,
The communication troubleshooting efficiency for power information acquisition system can be greatly improved.
This utility model solves the technical scheme adopted by its technical problem：A kind of deconcentrator is provided, which includes：Micro- place
Reason device, the RS485 interface circuits being connected with the microprocessor and some connecting valves, the connection being connected with the RS485 interface circuits
Interface and some epi-position interfaces being connected with these connecting valve difference one by one；Wherein, when RS485 network services are normal,
These connecting valves are in connection status, and the connecting port connects into a RS485 bus, the deconcentrator with these epi-position interfaces
Electric energy need not be consumed；When RS485 network services are abnormal, the deconcentrator can carry out failure inspection by the power supply that outside provides
Survey, now these connecting valves are controllable by the microprocessor and are in connected/disconnected state.
In certain embodiments, the deconcentrator also includes：The A/D sample circuits being connected with the microprocessor, for detecting
Voltage difference in two communication terminals of the RS485 interface circuits.
In certain embodiments, the deconcentrator also includes：The channel switching being engaged with the A/D sample circuits, for inciting somebody to action
Voltage in one of two communication terminals of the RS485 interface circuits sends the A/D sample circuits to, and the A/D sample circuits are again
Sampled voltage is conveyed to the microprocessor.
In certain embodiments, the deconcentrator also includes：The subtending port being connected with the RS485 interface circuits, for expanding
The quantity of exhibition RS485 interfaces.
In certain embodiments, the deconcentrator also includes：The some epi-position display lamps being connected with the microprocessor, each table
Position display lamp is used for indicating that a connecting valve and a communication leg corresponding to an epi-position interface with matching are
No normal.
In certain embodiments, the connecting valve is relay.
This utility model solves technical scheme that its technical problem adopted still：A kind of power information collection system is provided
System, some ammeters being connected by RS485 communication networks including power information collecting device and with the power information collecting device,
The RS485 communication networks include deconcentrator as above, wherein, the RS485 communication interfaces of these ammeters respectively with deconcentrator
On these epi-position interfaces be connected one by one, when RS485 network services are normal, the RS485 of power information collecting device communication
Interface is connected with the connecting port on deconcentrator.
In certain embodiments, when RS485 network services are abnormal, the connecting port on the deconcentrator and a handheld terminal phase
Even, to carry out fault detect.
The beneficial effects of the utility model are, by dexterously with microprocessor, the RS485 being connected with the microprocessor
Interface circuit and the connecting valve for being controlled by the microprocessor, constitute a deconcentrator, can be normal in RS485 network services
When, without the need for power supply, make RS485 communication networks suitable with a RS485 bus, when RS485 network services are abnormal, enter detection
State, making the change of RS485 communication networks turn to different connection status carries out automatic detection, can greatly improve power information collection system
The communication troubleshooting efficiency of system.
Description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing：
Fig. 1 is the block diagram of existing power information acquisition system.
Fig. 2 is the block diagram of power information acquisition system of the present utility model.
Fig. 3 is the block diagram of deconcentrator of the present utility model.
Fig. 4 is the flow chart of communication network failure detection of the present utility model.
Wherein, description of reference numerals is as follows：10th, 1 power information collecting device of 10a power information acquisition systems, 2 electricity
Table 3,37 connecting port of 3a RS485 communication network 31 deconcentrator, 32 downstream interface, 33 Upstream Interface, 38 subtending port
4 handheld terminal, 301 microprocessor, 302 RS485 interface circuits, 303 AD sampling 304 channel switching, 305 dial-ups are opened
Close 306 systems and indicate 307,308 RS485 interfaces, 310 connecting valve, 320 epi-position interface, 330 display lamp 350
360 power bus of RS485 buses.
Specific embodiment
In conjunction with accompanying drawing, preferred embodiment of the present utility model is elaborated.
Referring to Fig. 2, Fig. 2 is the block diagram of power information acquisition system of the present utility model.The utility model proposes a kind of use
Power utilization information collection system 10, which includes：Power information collecting device 1, some ammeters 2 and is used for setting power information collection
The standby 1 RS485 communication networks 3 got up with these communication connections of ammeters 2.The power information collecting device 1 can be harvester,
It can be concentrator.
The RS485 communication networks 3 specifically include deconcentrator 31, are used for the deconcentrator 31 and the power information collecting device
1 Upstream Interface 33 for coupling together, some downstream interfaces 32 for coupling together the deconcentrator 31 with these ammeters 2, use
Subtending port in the connecting port 37 being connected with 4 grade external equipment of handheld terminal and for being connected with next deconcentrator 31
38.Wherein, each ammeter 2 is connected with the deconcentrator 31 by an exclusive downstream interface 32.In the present embodiment, the separated time
The connecting port 37 of device 31 is connected with handheld terminal 4, can obtain power supply supply from the handheld terminal 4, and logical with the handheld terminal 4
Letter connection.It is noted that the deconcentrator 31 is coordinated with the handheld terminal 4, the RS485 communication networks can be efficiently realized
3 communication failure investigation, this point can be described in detail below.
Referring to Fig. 3, Fig. 3 is the block diagram of deconcentrator of the present utility model.The utility model proposes a kind of deconcentrator 31, which wraps
Include：Microprocessor 301, the sampling 303, channel switching 304 of RS485 interface circuits 302, AD, toggle switch 305, system are indicated
306th, RS485 interfaces 307,308 some epi-position display lamps 309, some connecting valves 310, some epi-position interfaces 320, RS485 are total
Line 350 and power bus 360.Wherein, RS485 buses 350 and power bus 360 are connected with RS485 interfaces 307,308,
RS485 communication connections can be carried out with external equipment, and power supply supply is obtained from external equipment.In the present embodiment, the connection
Switch 310 is realized from relay.
Wherein, microprocessor 301 is core.Microprocessor 301 is by serial communication port UART and the RS485 interface circuits
302 be connected, can via the RS485 buses 350 being connected with the RS485 interface circuits 302 be connected to RS485 interfaces 307,308
On RS485 communication apparatus communications connection.The RS485 communication equipments can be aforesaid power information collecting device 1, hand-held end
End 4 or another deconcentrator 31.In conjunction with Fig. 2, in the present embodiment, the deconcentrator 31 uses telecommunications by Upstream Interface 33 with this
Breath collecting device 1 is connected, it is to be understood that the Upstream Interface 33 is in the RS485 interfaces 307,308.The separated time
Device 31 is connected with the handheld terminal 1 by connecting port 37, it is to be understood that the connecting port 37 is the RS485 interfaces 307,308
In one, similarly, the subtending port 38 be the RS485 interfaces 307,308 in one.In other words, power information collection
Equipment 1 can be multiplexed same in the RS485 interfaces 307,308 with handheld terminal 4.
The AD samplings 303 are responsible for sampling the voltage on A, B line of the RS485 buses 350, and it is micro- to be sent to this respectively
AD conversion port on processor 301.The channel switching 304 is arranged on A, B line of the RS485 buses 350 and AD samplings 303
Input between, the channel switching 304 is controlled by the microprocessor 301, can optionally by the RS485 buses 350
Voltage on A, B line is sent to the input of AD sampling 303, then is sent to the microprocessor via the outfan of AD samplings 303
AD conversion port on 301.
The toggle switch 305 is connected with the microprocessor 301, for configuring to the microprocessor 301.The system refers to
Show that 306 working conditions that can provide the microprocessor 301 are indicated, for example：For indicating that power supply electrifying, test are carried out, and survey
Examination such as completes at the state.
Each epi-position display lamp 309, a downstream interface 32 being connected for one ammeter 2 of instruction and with the ammeter 2
Whether communication line is normal.Each epi-position connecting valve 310 is controlled by the microprocessor 301 and connects/disconnect, and correspondingly can
Determine whether connect/disconnect with the RS485 buses 350 with 2 corresponding 32 place communication lines of downstream interface of particular meter.
Each epi-position interface 320 is connected with an epi-position connecting valve 310, and each epi-position interface 320 corresponds to an aforesaid downstream
Interface 32.
It is understood that the structure of RS485 buses pressed by the deconcentrator 31, the RS485 buses as trunk can be divided into
350 and some epi-position interfaces 320 as branch, such that it is able to by 1/ handheld terminal 4 of power information collecting device and these
Ammeter 2 connects into star-shaped network structure.In the present embodiment, the number of epi-position interface 320 is 16, and the deconcentrator 31 can be corresponded to
16 ammeters 2 of connection；Additional microprocessor 301 in the RS485 buses 350 is connected to by the RS485 interface circuits 302,
Then there are inside the deconcentrator 31 17 RS485 communication nodes.
Referring to Fig. 4, Fig. 4 is the flow chart of communication network failure detection of the present utility model.Which generally comprises following steps：
S401, the 2 number K of ammeter that communication network connection is set.
S402, all ammeters 2 of disconnection；That is, all connecting valves 310 in Fig. 3 are in off-state, do not have
One ammeter 2 can carry out RS485 communications with 1/ handheld terminal 4 of power information collecting device.
S403, first ammeter 2 of connection；First ammeter 2 herein is in logic.Connection, it is meant that：Correspond to this
The connecting valve 310 of individual ammeter 2 is in connection status, and other connecting valves 310 are then off.
Whether S404, communication check, that is, detect and can between 1/ handheld terminal 4 of the ammeter 2 and the power information collecting device
RS485 communication is enough carried out, for example：1/ handheld terminal 4 of power information collecting device sends the order for reading table number, if all
Normally, then 1/ handheld terminal 4 of power information collecting device can obtain the table number of the report of ammeter 2, and testing result passes through shape
State word/position is recorded, and is preserved.
Whether a little, if having, there is load in S405, load detecting, i.e. detection ammeter 2, not in connection（Disconnect）
If, there is no load, testing result is recorded by status word/position, is preserved.
Whether S406, bus voltage detection, i.e. the RS485 communication interfaces of detection ammeter 2 damage, bus voltage exception
Words, represent to exist and damage, and if bus voltage is normal, represents, testing result is recorded by status word/position,
Preserve.
S407, all ammeters 2 of disconnection；Consider that current only one of which ammeter 2 is in connection status, that is to say, that disconnect
It is previously in an ammeter 2 of connection status so as to which corresponding connecting valve 310 is converted to disconnection by connection.
S408, the next ammeter 2 of preparation detection.
Whether S409, the ammeter 2 for preparing just to have detected have been last？If being, S410 is gone to step, otherwise
Words, go to step S411.
S410, output testing result, detection terminate.
S411, the next ammeter 2 of connection, go to step S404 and are circulated detection.
It is understood that by the deconcentrator 31, by the relevant application program run on the handheld terminal 4, can be with
Realize that the detection of multiple strategies, the inspection policies not enumerated with above-mentioned flow chart are limited.In addition, above-mentioned relevant application journey
The function of sequence, can realize in the power information collecting device 1, such that it is able to realize the power information acquisition system 10
The self-inspection of RS485 communication networks 3.
It is noted that in the normal operating condition of the power information acquisition system 10, the deconcentrator 31 is equivalent to one
Individual passive device, each connecting valve 310 are in connection status, it is possible to understand that RS485 communication networks 3 at this moment and one
RS485 buses are suitable.In the detection function of needing to realize RS485 communication networks 3, the power information collecting device can be passed through
1/ handheld terminal 4, provides power supply supply to the deconcentrator 31 so that 301 grade active device of microprocessor thereon obtain electric enter
Enter working condition.In addition, though above-mentioned is by taking the RS485 communication networks 3 between power information collecting device 1 and ammeter 2 as an example
Illustrate, in other embodiments, ammeter 2 can also replace water meter such as with RS485 communication interfaces, gas meter etc other
Equipment.
The beneficial effects of the utility model are, by dexterously using microprocessor 301, being connected with the microprocessor 301
RS485 interface circuits 302 and be controlled by the connecting valve 310 of the microprocessor 301, constitute a deconcentrator 31, Ke Yi
When RS485 network services are normal, without the need for power supply, make RS485 communication networks suitable with a RS485 bus, logical in RS485 networks
When letter is abnormal, detection state is entered, making the change of RS485 communication networks turn to different connection status carries out automatic detection, can be significantly
Improve the communication troubleshooting efficiency of power information acquisition system 10.
It should be appreciated that above example is only in order to illustrate the technical solution of the utility model, rather than a limitation, right
For those skilled in the art, the technical scheme described in above-described embodiment can be modified, or to its partial skill
Art feature carries out equivalent；And these modifications and replacement, should all belong to the protection domain of this utility model claims.
Claims (7)
1. a kind of deconcentrator of power information acquisition system, it is characterised in that include：Microprocessor, it is connected with the microprocessor
RS485 interface circuits and some connecting valves, the connecting port being connected with the RS485 interface circuits and with these connecting valves
The some epi-position interfaces being connected one by one respectively；Wherein, when RS485 network services are normal, these connecting valves are in connecting
State, the connecting port connect into a RS485 bus with these epi-position interfaces, and the deconcentrator need not consume electric energy；In RS485
When network service is abnormal, the deconcentrator can carry out fault detect by the power supply that outside provides, and now these connecting valves are
It is controlled by the microprocessor and is in connected/disconnected state.
2. the deconcentrator of power information acquisition system according to claim 1, it is characterised in that：The deconcentrator also includes：
The A/D sample circuits being connected with the microprocessor, for detecting the voltage pressure in two communication terminals of the RS485 interface circuits
Difference.
3. the deconcentrator of power information acquisition system according to claim 2, it is characterised in that：The deconcentrator also includes：
The channel switching being engaged with the A/D sample circuits, for the electricity in one of two communication terminals by the RS485 interface circuits
Pressure sends the A/D sample circuits to, and sampled voltage is conveyed to the microprocessor by the A/D sample circuits again.
4. the deconcentrator of power information acquisition system according to claim 1, it is characterised in that：The deconcentrator also includes：
The subtending port being connected with the RS485 interface circuits, for extending the quantity of RS485 interfaces.
5. the deconcentrator of power information acquisition system according to claim 1, it is characterised in that：The deconcentrator also includes：
The some epi-position display lamps being connected with the microprocessor, each epi-position display lamp are used for indicating a connecting valve and are matched therewith
Whether the communication leg corresponding to an epi-position interface that closes is normal.
6. the deconcentrator of power information acquisition system according to claim 1, it is characterised in that：The connecting valve is relay
Device.
7. a kind of power information acquisition system, passes through including power information collecting device and with the power information collecting device
Some ammeters that RS485 communication networks are connected, it is characterised in that：The RS485 communication networks are included as claim 1 to 6 is arbitrary
Deconcentrator described in, wherein, the RS485 communication interfaces of these ammeters respectively with deconcentrator on these epi-position interfaces phase one by one
Even, the connecting port when RS485 network services are normal, in the RS485 communication interfaces of the power information collecting device and deconcentrator
It is connected；When RS485 network services are abnormal, the connecting port on the deconcentrator is connected with a handheld terminal, to carry out fault detect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201621038738.8U CN206021548U (en) | 2016-09-05 | 2016-09-05 | Power information acquisition system and its deconcentrator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621038738.8U CN206021548U (en) | 2016-09-05 | 2016-09-05 | Power information acquisition system and its deconcentrator |
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| CN206021548U true CN206021548U (en) | 2017-03-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106327851A (en) * | 2016-09-05 | 2017-01-11 | 深圳市科曼信息技术有限公司 | Electricity utilization information acquiring system, deconcentrator thereof and communication fault detecting method |
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2016
- 2016-09-05 CN CN201621038738.8U patent/CN206021548U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106327851A (en) * | 2016-09-05 | 2017-01-11 | 深圳市科曼信息技术有限公司 | Electricity utilization information acquiring system, deconcentrator thereof and communication fault detecting method |
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| GR01 | Patent grant |