CN203104115U - Power network instrument expansion device and intelligent power distribution system - Google Patents
Power network instrument expansion device and intelligent power distribution system Download PDFInfo
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- CN203104115U CN203104115U CN201320054443XU CN201320054443U CN203104115U CN 203104115 U CN203104115 U CN 203104115U CN 201320054443X U CN201320054443X U CN 201320054443XU CN 201320054443 U CN201320054443 U CN 201320054443U CN 203104115 U CN203104115 U CN 203104115U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/242—Home appliances
Abstract
The utility model relates to the field of electric power equipment and especially relates to a power network instrument expansion device and an intelligent power distribution system. The power network instrument expansion device comprises a controller for protocol conversion and extended function integration and two interface conversion circuits which are connected with the controller and are used for converting a standard interface electrical signal into a TTL level signal, wherein the two interface conversion circuits are connected with a standard communication interface respectively, one communication interface is used for carrying out matching and communication with a power network instrument, and the other communication interface is used for carrying out matching and communication with a monitoring terminal. According to the power network instrument expansion device, when the power network instrument of the intelligent power distribution system is changed or other functions are added on the basis of the original power network instrument, only equipping the power network instrument expansion device is needed, the above change can be realized through setting related parameters, and the reprogramming of the monitoring terminal is not needed.
Description
Technical field
The utility model relates to the electric power electrical apparatus field, especially relates to a kind of electrical network instrument expanding unit and a kind of intelligent distribution system.
Background technology
At present, along with the continuous development of science and technology, the intellectuality of intelligent distribution system, informationalized degree also improve constantly.As the application of the intelligent electric power network instrument of intelligent power distribution important component part also more and more widely.Employed intelligent electric power network instrument all fast especially in the technical development of function, aspect of performance in the present intelligent distribution system, in the single electrical network instrument integrated function also more and more.But in fact, the kind that is not the required function of each client all is the same with quantity, therefore when the function of electrical network instrument head and shoulders above during user's demand, cause all multi-functional wastes of electrical network instrument incessantly, also improved user's cost.Therefore in order to satisfy the different demands of different user, particularly the part demand is fairly simple, the user of funds anxiety, the manufacturer of each electrical network instrument has all released the instrument model that function or performance are simplified to some extent, the user can select suitable instrument in conjunction with the funds situation according to own current actual demand.These electrical network instruments generally all transfer data to monitor terminal by the Modbus-RTU agreement of standard.
Monitor terminal is analyzed, adds up, puts in order, is shown by the data that many electrical network instruments are gathered and operation such as preservation realizes the intelligent and information-based of distribution system.
But, though the electrical network instrument that each producer produced is the Modbus-RTU agreement of compatibility standard all, but since in the Modbus-RTU agreement to the multiplication factor of each parameters of electric power, many details such as argument address table all do not have clear and definite qualification, therefore caused monitor terminal to programme according to specific requirements such as the argument address table of the electrical network instrument of the actual use of user and data transaction multiples, in case the client has used the electrical network instrument that a certain manufacturer produced, if follow-uply want to change the electrical network instrument that other manufacturers produce, perhaps want on the basis of original electrical network instrument, to increase other function, just relate to replacing or the electrical network instrument that increases newly and the incompatible problem of software of monitor terminal, the electrical network instrument after changing needs again monitor terminal to be programmed, so that can normally use.
The utility model content
The utility model proposes a kind of electrical network instrument expanding unit and a kind of intelligent distribution system, this electrical network instrument expanding unit can make intelligent distribution system change electrical network instrument, when perhaps wanting on the basis of original electrical network instrument, to increase other function, do not need again monitor terminal to be programmed.
In order to achieve the above object, the technical solution of the utility model is achieved in that
A kind of electrical network instrument expanding unit comprises: realize the controller that protocol conversion, expanded function are integrated;
Two be connected with described controller to be used for the standard interface transform electric be the interface conversion circuit of Transistor-Transistor Logic level signal;
Two described interface conversion circuits all are connected with a mailing address and all adjustable communication interface of baud rate;
One of them communication interface is used for mating with electrical network instrument and communicating by letter;
Another described communication interface is used for mating with monitor terminal and communicating by letter.
In each execution mode of the present utility model, preferably, also be provided with interface protective circuit between described communication interface and the described interface conversion circuit.
In each execution mode of the present utility model, preferably, also be provided with photoelectric isolating circuit between described interface conversion circuit and the described controller.
In each execution mode of the present utility model, preferably, the electrical network instrument expanding unit also comprises: information storage module;
Described information storage module is connected with described controller.
In each execution mode of the present utility model, preferably, the electrical network instrument expanding unit also comprises: display module;
Described display module comprises display and display driver circuit;
Described display is connected with described controller by described display driver circuit.
In each execution mode of the present utility model, preferably, the electrical network instrument expanding unit also comprises: input unit;
Described input unit is connected with described controller.
In each execution mode of the present utility model, preferably, the electrical network instrument expanding unit also comprises: the input and output expanding element;
Described input and output expanding element is connected with described controller.
In each execution mode of the present utility model, preferably, the electrical network instrument expanding unit also comprises: the temperature measurement unit that is used for sending to described controller temperature measurement signal;
Described temperature measurement unit is connected with described controller;
Described controller also is connected with warning device.
A kind of intelligent distribution system comprises: monitor terminal and a plurality of electrical network instrument;
Each described electrical network instrument all is connected with described monitor terminal by an electric power networking instrument expanding unit.
In each execution mode of the present utility model, preferably, also comprise the multichannel communication controller;
Described electric power networking instrument expanding unit is connected with described monitor terminal by described multi-channel information controller.
The electrical network instrument expanding unit that the utility model provides compared to existing technologies, adopt the two-way communication interface, because many details parameters of the mailing address of communication interface and baud rate and design communication coupling are all adjustable, therefore, can be by different parameters be set, make communication interface mate with different electrical network instrument or monitor terminal, in the two-way communication interface a road is connected with electrical network instrument, be used for mating with electrical network instrument and communicating by letter, reading of data from electrical network instrument, another road is connected with monitor terminal, is used for mating with monitor terminal and communicating by letter, the control command of response monitoring terminal.Be equivalent between electrical network instrument that originally can not mate and monitor terminal, set up together " bridge " that can be respectively be complementary with both, thereby making that the electrical network instrument expanding unit is seamless is concatenated in original communication loop, and electrification network instrument expanding unit is finished communicating by letter between electrical network instrument and the monitor terminal as the media of centre.Even the electrical network instrument that has a plurality of different manufacturers to produce inserts monitor terminal, only need realize electrical network instrument expanding unit and monitor terminal respectively, communicating by letter between electrical network instrument expanding unit and the electrical network instrument gets final product, thereby when changing electrical network instrument, only need to change relevant parameter in the electrical network instrument expanding unit, to realize communicating by letter between electrical network instrument expanding unit and the electrical network instrument, promptly can realize the communication between monitor terminal and the electrical network instrument, not need again monitor terminal to be programmed.When needs are upgraded expansion to existing electrical network instrument, only need on the basis of original electrical network instrument, increase distribution power network instrument expanding unit, by relevant parameter is set, make the two seamless combination, realize upgrading.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply, apparently, accompanying drawing in describing below is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the electrical network instrument expanding unit that provided of the utility model embodiment one;
Fig. 2 is the structural representation of the electrical network instrument expanding unit that provided of the utility model embodiment two;
Fig. 3 is the structural representation of the electrical network instrument expanding unit that provided of the utility model embodiment three;
Fig. 4 is the structural representation of the electrical network instrument expanding unit that provided of the utility model embodiment four;
Fig. 5 is the structural representation of the electrical network instrument expanding unit that provided of the utility model embodiment five;
Fig. 6 is the structural representation of the electrical network instrument expanding unit that provided of the utility model embodiment six;
Fig. 7 is the structural representation of the electrical network instrument expanding unit that provided of the utility model embodiment seven;
Fig. 8 is the structural representation of the electrical network instrument expanding unit that provided of the utility model embodiment eight;
Fig. 9 is the structural representation of the intelligent distribution system that provided of the utility model embodiment nine;
Figure 10 is the structural representation of the intelligent distribution system that provided of the utility model embodiment ten.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model embodiment clearer, below in conjunction with the accompanying drawing among the utility model embodiment, technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Electrical network instrument expanding unit provided by the utility model, comprise two mailing addresses and the adjustable communication interface of baud rate, one of them communication interface is used for mating with monitor terminal and communicating by letter, another communication interface is used for mating with electrical network instrument and communicating by letter, when changing electrical network instrument, only need to change relevant parameter in the electrical network instrument expanding unit, to realize communicating by letter between electrical network instrument expanding unit and the electrical network instrument, promptly can realize the communication between monitor terminal and the electrical network instrument, not need again monitor terminal to be programmed.When needs are upgraded expansion to existing electrical network instrument, only need on the basis of original electrical network instrument, increase distribution power network instrument expanding unit, by relevant parameter is set, make the two seamless combination, realize upgrading.
Embodiment one:
Fig. 1 is the structural representation of the electrical network instrument expanding unit that provided of the utility model embodiment one, referring to shown in Figure 1, the electrical network instrument expanding unit that the utility model embodiment one is provided comprises: realize the controller 1 that protocol conversion, expanded function are integrated; Two be connected with described controller 1 to be used for the standard interface transform electric be the interface conversion circuit 2 of Transistor-Transistor Logic level signal; Two described interface conversion circuits 2 all are connected with a mailing address and all adjustable communication interface 3 of baud rate; One of them communication interface 3 is used for mating with electrical network instrument and communicating by letter; Another described communication interface 3 is used for mating with monitor terminal and communicating by letter.
In present embodiment one, adopt two-way communication interface 3, because the mailing address and the baud rate of communication interface 3 are all adjustable, therefore, can be by different mailing addresses and baud rate be set, make communication interface 3 mate with different electrical network instrument or monitor terminal, in the two-way communication interface 3 a road is connected with electrical network instrument, be used for mating with electrical network instrument and communicating by letter, reading of data from electrical network instrument, another road is connected with monitor terminal, is used for mating with monitor terminal and communicating by letter, the control command of response monitoring terminal.Be equivalent to set up together " bridge " that can be respectively be complementary with both at the electrical network instrument that originally can not mate and monitor terminal, thereby making that the electrical network instrument expanding unit is seamless is concatenated in original communication loop, and electrification network instrument expanding unit is finished communicating by letter between electrical network instrument and the monitor terminal as the media of centre.Even the electrical network instrument that has a plurality of different manufacturers to produce inserts monitor terminal, only need realize electrical network instrument expanding unit and monitor terminal respectively, communicating by letter between electrical network instrument expanding unit and the electrical network instrument gets final product, thereby when increasing or change electrical network instrument, only need to change relevant parameter in the electrical network instrument expanding unit, to realize communicating by letter between electrical network instrument expanding unit and the electrical network instrument, promptly can realize the communication between monitor terminal and the electrical network instrument, not need again monitor terminal to be programmed.When needs are upgraded expansion to existing electrical network instrument, only need on the basis of original electrical network instrument, increase distribution power network instrument expanding unit, by relevant parameter is set, make the two seamless combination, realize upgrading.
In existing intelligent distribution system, because monitor terminal is programmed again, the cost of revising monitor terminal is often higher, increases improvement cost greatly.In addition, if the user wants the existing power network instrument is carried out function upgrading when expansion, substantially all need to buy powerful new model instrument again, original instrument can only be scrapped by force, has caused the wasting of resources.Even part producer has released extendible electrical network instrument, but still there is following limitation:
When 1, selecting electrical network instrument for use at first, must select the expensive instrument model of expanding for use, increase intelligent power distribution current cost just.
If 2 have selected extendible instrument at first for use, the proprietary extensions module with regard to selecting to match when carrying out instrument expansion upgrading, the user who makes is very passive, and have a greatly reduced quality in the agreed-upon price space.
3, at present the expansion module of network instrument substantially all only is confined on the hardware expanding resource such as input and output, and because expansion module and resources such as body common source and master controller, feasible expansion is subjected to many-sided limitation, if the function of customer upgrade more for a long time, can't satisfy.
Therefore, electrical network instrument expanding unit provided by the utility model, can be by the communication interface 3 that is complementary respectively with monitor terminal and electrical network instrument, with different manufacturers, the electrical network instrument of different model is connected on the monitor terminal, therefore when selecting electrical network instrument for use at first, only need select according to user's demand at that time, in the time of follow-up need the expansion, only need electrification network instrument expanding unit that new electrical network instrument is connected on the monitor terminal, promptly realize function expansion, reduced the cost at intelligent power distribution initial stage.And in expansion, do not need to use the electrical network instrument of the specific specific model that producer produced, the user only needs to select to get final product according to the needs of oneself, has increased user's choice, increases the agreed-upon price space, saves user cost.And no matter how many functions follow-up the needs increases, the electrical network instrument that only needs electrification network instrument expanding unit will have the corresponding function that will expand is connected on the monitor terminal, can realize, satisfies user's user demand.
Embodiment two:
Fig. 2 is the structural representation of the electrical network instrument expanding unit that provided of the utility model embodiment two, referring to shown in Figure 2, on the basis of the foregoing description one, also is provided with interface protective circuit 4 between described communication interface 3 and the described interface conversion circuit 2.
In present embodiment two; owing to be connected with electrical network instrument with monitor terminal at the electrical network instrument expanding unit; and in the process that communicates; in the two-way communication interface a road directly is connected monitor terminal with electric power networking instrument expanding unit; interface conversion circuit adopts the interface chip of the RS485 RS 232 of standard; can with the transform electric of RS485 the RS232 signal of Transistor-Transistor Logic level; in the process of electric signal and level signal conversion; the voltage or the electric current that are applied on the electrical network instrument expanding unit are excessive; all can cause the damage of device; therefore between communication interface 3 and interface conversion circuit 2, be provided with interface protective circuit 4, can not damage owing to overvoltage or overcurrent with protection communication interface 3 and interface conversion circuit 2.This interface protective circuit 4 adopts piezo-resistance to place overvoltage and damages, and adopts PTC resistance to prevent overcurrent damage.
Embodiment three:
Fig. 3 is the structural representation of the electrical network instrument expanding unit that provided of the utility model embodiment three, referring to shown in Figure 3, on the basis of the foregoing description one and embodiment two, also be provided with photoelectric isolating circuit 5 between described interface conversion circuit 2 and the described controller 1.
In present embodiment three, after in the communication loop that the electrical network instrument expanding unit is concatenated into intelligent distribution system, can produce certain influence to original load, therefore between interface conversion circuit 2 and controller 1, added photoelectric isolating circuit, optical signal isolation is thoroughly passed through in main control part (first charge system device 1) and interface section (interface conversion circuit 2 and communication interface 2), there is not electric contact, make main control part from whole intelligent distribution system, be isolated, can after the electrical network instrument expanding unit is concatenated in the communication loop of intelligent distribution system, can not exert an influence original load.Preferably, adopt high speed optoelectronic coupling chip to finish photoelectricity in the photoelectric isolating circuit 5 and isolate, like this, can move more reliable so that the anti-interference of intelligent distribution system is stronger.
Embodiment four:
Fig. 4 is the structural representation of the electrical network instrument expanding unit that provided of the utility model embodiment four, referring to shown in Figure 4, on the basis of the foregoing description one, embodiment two and embodiment three, described electrical network instrument expanding unit also comprises: information storage module 6; Described information storage module 6 is connected with described controller 1.
In present embodiment four, the communication protocol that communication interface 3 is used is the Modbus-RTU agreement.Because what the Modbus-RTU agreement adopted is the communication pattern of master-slave mode, promptly the background acquisition system is a main frame, and many instruments of being gathered are slave.Main frame carries out the data calling with polling mode to the slave of bottom successively, does not have the calling of main frame, and slave is return data initiatively.If a background acquisition system has many instrument, so after the background acquisition system poll one whole circle, can upgrade the data of certain instrument, all need the regular hour when being polled to each instrument, the background acquisition system with instrument many more, then time of needing of poll also many more, the renewal of instrumented data is also slow more.Therefore, in present embodiment four, the relevant information of the electrical network instrument that controller 1 will be connected with the electrical network instrument expanding unit is read in real time, and the information stores that these enforcements are read in is in information storage module 6, in case the monitor terminal that is connected with this electrical network instrument expanding unit sends reading command to the communication interface 3 that is attached thereto, communication interface 3 sends this reading command to controller 1, controller 1 is according to this reading command, the relevant information of having stored in the recalls information memory cell 6 sends to monitor terminal, and needn't read relevant information again from electrical network instrument.When monitor terminal is connected with a plurality of electrical network instrument, a plurality of electrical network instrument expanding units that are connected with electrical network instrument respectively read the information that is attached thereto the electrical network instrument that connects simultaneously, and when needing, monitor terminal is transferred to monitor terminal, reduce the needed time of poll, realized the quick renewal of each electrical network instrument.
In present embodiment four, when controller 1 reads the information of electrical network instrument, this information directly can also be transferred to monitor terminal, and information is saved in the information storage module 6 simultaneously, the information of this electrical network instrument is carried out independent preservation, and monitor terminal can call the information of this electrical network instrument easily.
Embodiment five:
Fig. 5 is the structural representation of the electrical network instrument expanding unit that provided of the utility model embodiment five, and referring to shown in Figure 5, on the basis of above-mentioned four embodiment, described electrical network instrument expanding unit also comprises: display module 7; Described display module 7 comprises display 8 and display driver circuit 9; Described display 8 is connected with described controller 1 by described display driver circuit 9.
In present embodiment six, connected display module 7 at controller 1, when relevant parameters such as the mailing address of two communication interfaces 3 and baud rate are provided with, the user can by display module 7 will it to user's demonstration, check to make things convenient for the user whether the parameter of setting correct.In addition, the information of the electrical network instrument that the electrical network instrument expanding unit is read also can show by this display module 7, checks to make things convenient for user's relevant information to the electrical network instrument that is connected with this electrical network instrument expanding unit after breaking away from monitor terminal.Display module 7 is essentially electrical network instrument expanding unit and user's interpersonal interactive device, has realized that electrical network instrument expanding unit and user's is interpersonal mutual.
Embodiment six:
Fig. 6 is the structural representation of the electrical network instrument expanding unit that provided of the utility model embodiment six, and referring to shown in Figure 6, on the basis of above-mentioned five embodiment, described electrical network instrument expanding unit also comprises: input unit 10; Described input unit 10 is connected with described controller 1.
In present embodiment six,, need be provided with relevant parameters such as the mailing address of two communication interfaces 3 and baud rates because the user is before using electrical network instrument expanding unit provided by the utility model.On controller 1, connected input unit 10, the parameter setting that can use input unit 10 to be correlated with.In present embodiment six, the parameter setting of being correlated with can also use telecommunication to carry out, in fact, the input unit 10 that the utility model embodiment six provided can be provided with relevant parameters such as the mailing address of communication interface 3 and baud rates incessantly, can also import other relevant information in the electrical network instrument expanding unit.
Embodiment seven:
Fig. 7 is the structural representation of the electrical network instrument expanding unit that provided of the utility model embodiment seven, and referring to shown in Figure 7, on the basis of above-mentioned six embodiment, described electrical network instrument expanding unit also comprises: input and output expanding element 11; Described input and output expanding element 11 is connected with described controller 1.
In present embodiment seven, for example the electrical network instrument of user's employing has only the input/output signal of fixed qty, for example has only two paths of signals, after this electrical network instrument is using a period of time, the user promotes to some extent to the quantitative requirement of signal, traditional solution then is the electrical network instrument that more renews, original electrical network instrument can only be given it up, but in fact, original electrical network instrument still can use, so just caused waste, increased user's cost, so the user directly is connected to electric power networking instrument expanding unit between original electrical network instrument and the monitor terminal need increase the quantity of input and output the time, owing to comprised input and output expanding element 11 on the electrical network instrument, the quantity of the input/output signal of the required increase of user is nourished by input and output expanding element 11 and is filled, and like this, has both satisfied user's demand, do not need the electrical network instrument that more renews again, saved user's cost.
Embodiment eight:
Fig. 8 is the structural representation of the electrical network instrument expanding unit that provided of the utility model embodiment eight, referring to shown in Figure 8, on the basis of above-mentioned seven embodiment, described electrical network instrument expanding unit also comprises: the temperature measurement unit 12 that is used for sending to described controller 1 temperature measurement signal; Described temperature measurement unit 12 is connected with described controller 1; Described controller 1 also is connected with warning device 13.
In present embodiment eight, owing to generally all be mounted in electrical network instrument and electrical network instrument expanding unit in the switch cubicle at present, in case after installing, the user can not go to touch again generally speaking, when only subscriber equipment needed to increase, changes or repairs, the user is electrical network instrument and the electrical network instrument expanding unit in the contact-making switch cabinet once more.And after electric power networking instrument expanding unit uses for a long time, situations such as loose contact, disengaging or short circuit may appear in the junction between wherein each part, when above-mentioned situation occurring, generally can cause electric current to increase by the electrical network instrument expanding unit, therefore caused the rising of related elements temperature, in case the time that this situation continues may be caused the damage of electrical network instrument or electrical network instrument expanding unit when longer.Therefore connected temperature measurement unit 12 on controller 1, when detected temperature reached a certain default value, controller 1 sent warning by warning device 13 to the user, with the prompting user.
Embodiment nine:
Fig. 9 is that the utility model embodiment nine also provides a kind of intelligent distribution system, uses above-mentioned eight electrical network instrument expanding units that embodiment provided, and referring to shown in Figure 9, comprising: monitor terminal 14 and a plurality of electrical network instrument 15; Each described electrical network instrument 15 all is connected with described monitor terminal 14 by an electric power networking instrument expanding unit 16.
In present embodiment nine, adopt two-way communication interface 3, because the mailing address and the baud rate of communication interface 3 are all adjustable, therefore, can be by all multi-parameters such as different mailing addresses and baud rate be set, make communication interface 3 mate with different electrical network instrument 15 or monitor terminal 14, in the two-way communication interface 3 a road is connected with electrical network instrument 15, be used for mating with electrical network instrument 15 and communicating by letter, reading of data from electrical network instrument 15, another road is connected with monitor terminal 14, is used for mating with monitor terminal 14 and communicating by letter the control command of response monitoring terminal 14.Be equivalent between electrical network instrument 15 that originally can not mate and monitor terminal 14, set up together " bridge " that can be respectively be complementary with both, thereby make electrical network instrument expanding unit 16 seamless being concatenated in original communication loop, electrification network instrument expanding unit 16 is finished communicating by letter between electrical network instrument 15 and the monitor terminal 14 as the media of centre.Even the electrical network instrument 15 that has a plurality of different manufacturers to produce inserts monitor terminal 14, only need realize electrical network instrument expanding unit 16 and monitor terminal 14 respectively, communicating by letter between electrical network instrument expanding unit 16 and the electrical network instrument 15 gets final product, thereby when increasing or changing electrical network instrument 15, only need to change relevant parameter such as mailing address and baud rate in the electrical network instrument expanding unit 16, to realize communicating by letter between electrical network instrument expanding unit 16 and the electrical network instrument 15, promptly can realize the communication between monitor terminal 14 and the electrical network instrument 15, not need again monitor terminal 14 to be programmed.In the time of need upgrading expansion to existing electrical network instrument 15, only need on the basis of original instrument, increase and join expansion module 16,, make the two seamless combination, realize upgrading by relevant parameter is set.
Embodiment ten:
Figure 10 is the intelligent distribution system that the utility model embodiment ten is provided, and on the basis of the foregoing description nine, also comprises multichannel communication controller 17; Described electric power networking instrument expanding unit 16 is connected with described monitor terminal 14 by described multi-channel information controller 17.
In present embodiment ten, because multichannel communication controller 17 generally all is provided with a plurality of communication port, when using this multi-channel information controller 17 that electrical network instrument expanding unit 16 and monitor terminal 14 are coupled together, a plurality of communication interfaces on the multichannel communication controller 17 might not all be used, therefore when the user wants to increase electric power network instrument 15, only need on the idle communication port on the multichannel communication controller 17, connect an electrical network instrument expanding unit 16 and promptly electrical network instrument 15 can be inserted whole communication loop, can not influence the operate as normal of whole communication loop.
It should be noted that at last: above embodiment only in order to the explanation the technical solution of the utility model, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (10)
1. an electrical network instrument expanding unit is characterized in that, comprising: realize the controller that protocol conversion, expanded function are integrated;
Two be connected with described controller to be used for the standard interface transform electric be the interface conversion circuit of Transistor-Transistor Logic level signal;
Two described interface conversion circuits all are connected with a mailing address and all adjustable communication interface of baud rate;
One of them communication interface is used for mating with electrical network instrument and communicating by letter;
Another described communication interface is used for mating with monitor terminal and communicating by letter.
2. electrical network instrument expanding unit according to claim 1 is characterized in that, also is provided with interface protective circuit between described communication interface and the described interface conversion circuit.
3. electrical network instrument expanding unit according to claim 1 is characterized in that, also is provided with photoelectric isolating circuit between described interface conversion circuit and the described controller.
4. electrical network instrument expanding unit according to claim 1 is characterized in that, also comprises: information storage module;
Described information storage module is connected with described controller.
5. electrical network instrument expanding unit according to claim 2 is characterized in that, also comprises: display module;
Described display module comprises display and display driver circuit;
Described display is connected with described controller by described display driver circuit.
6. electrical network instrument expanding unit according to claim 2 is characterized in that, also comprises: input unit;
Described input unit is connected with described controller.
7. according to any described electrical network instrument expanding unit of claim 1-6, it is characterized in that, also comprise: the input and output expanding element;
Described input and output expanding element is connected with described controller.
8. electrical network instrument expanding unit according to claim 7 is characterized in that, also comprises: the temperature measurement unit that is used for sending to described controller temperature measurement signal;
Described temperature measurement unit is connected with described controller;
Described controller also is connected with warning device.
9. intelligent distribution system, application rights requires any described electric power networking instrument expanding unit of 1-8, it is characterized in that, comprising: monitor terminal and a plurality of electrical network instrument;
Each described electrical network instrument all is connected with described monitor terminal by an electric power networking instrument expanding unit.
10. intelligent distribution system according to claim 9 is characterized in that, also comprises the multichannel communication controller;
Described electric power networking instrument expanding unit is connected with described monitor terminal by described multi-channel information controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320054443XU CN203104115U (en) | 2013-01-30 | 2013-01-30 | Power network instrument expansion device and intelligent power distribution system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320054443XU CN203104115U (en) | 2013-01-30 | 2013-01-30 | Power network instrument expansion device and intelligent power distribution system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103532168A (en) * | 2013-10-10 | 2014-01-22 | 国家电网公司 | Distributed power generating grid-connected control circuit |
| CN103607478A (en) * | 2013-11-30 | 2014-02-26 | 国家电网公司 | Communication interface device for movable energy storage control cabinet and protocol conversion method thereof |
-
2013
- 2013-01-30 CN CN201320054443XU patent/CN203104115U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103532168A (en) * | 2013-10-10 | 2014-01-22 | 国家电网公司 | Distributed power generating grid-connected control circuit |
| CN103607478A (en) * | 2013-11-30 | 2014-02-26 | 国家电网公司 | Communication interface device for movable energy storage control cabinet and protocol conversion method thereof |
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