CN103048537A - Building electricity itemized metering device - Google Patents
Building electricity itemized metering device Download PDFInfo
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- CN103048537A CN103048537A CN2012105817753A CN201210581775A CN103048537A CN 103048537 A CN103048537 A CN 103048537A CN 2012105817753 A CN2012105817753 A CN 2012105817753A CN 201210581775 A CN201210581775 A CN 201210581775A CN 103048537 A CN103048537 A CN 103048537A
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Abstract
The invention relates to a building electricity itemized metering device, which belongs to the technical field of low-voltage distribution of large-scale public buildings. The device comprises a metering housing (1), a touch screen (2), an input panel (3), a CPU (Central Processing Unit) arithmetic unit (4), a 485 interface (5), a TCP (Transmission Control Protocol)/IP (Internet Protocol) communication port (7) and a three-phase four-wire terminal (9), wherein the 485 interface (5) is connected with an electric energy meter (10) or a collector (6), the TCP/IP communication port (7) is connected with a server (8), the three-phase four-wire terminal (9) is connected with an electricity load (11) or the electric energy meter (10); the building electricity itemized metering device is characterized in that after the CPU arithmetic unit (4) identifies the features of an input electrical system diagram, circuit parameters used for directly metering the electricity load (11) and circuit parameters used for indirectly metering the electric energy meter (10) are stored, and circuit parameters of related circuits are calculated. According to the building electricity itemized metering device, the quantity of electric energy meters can be obviously reduced, the construction difficulty can be reduced, damage to indoor decoration can be reduced, the negative effect of construction on normal use of buildings can be reduced, the initial investment of the system can be reduced, and the requirements of the server and processing software can be appropriately extended.
Description
Technical field
The invention belongs to the technical field of large public building low-voltage distribution, relate in particular to as realizing that electricity consumption subitem monitoring management carries out a kind of easy building electricity consumption metering separate device in electric-power metering, collection and transmission technology field.
Background technology
The large public building electric system is complicated, and power consumption is huge, and energy-saving potential is high, and electric power monitoring is the work prerequisite of carrying out power saving management and using electricity wisely.The large public building electricity consumption comprises the systems such as illumination, office, power, air-conditioning heating, kitchen food and drink, information machine room, laundry, wherein air conditioner heating system is divided into Cooling and Heat Source and distributing system one-level subitem, and Cooling and Heat Source is divided into again the secondary subitems such as cold machine, chilled water pump, cooling-water pump, cooling tower, electric boiler, heating water pump.
A lot of large public building building electric-power metering engineerings are in order to realize the terminal metering of itemizing, and only the single building of several ten thousand square meters has been installed hundreds of piece ammeter, perhaps to the extensive change of circuit.Along with the increase of terminal ammeter, the quantity of collector also increases, and initial cost increases.Engineering construction is complicated, and construction reformation has destroyed finishing in existing engineering, even has affected the normal use of building.Because the data volume that gathers is huge, the server process performance must further promote, and the counting statistics of database software also must be strengthened.
Summary of the invention
For the deficiency of building electric-power metering technology, invent a kind of Simple measuring device that carries calculation function.This measuring apparatus not only has common electric energy meter to the function of measuring of voltage, electric current, power factor etc., also carries addition subtraction multiplication and division fundamental operation function.Adopt apparatus of the present invention, can significantly reduce the quantity of electric energy meter, reduce difficulty of construction, reduce the infringement to interior decoration, reduce construction to building the negative effect of normal use, reduce system's initial cost.Since the minimizing of electric energy meter quantity, the corresponding minimizing of the quantity of collector, and the requirement of server and process software also can suitably be relaxed.
A kind of building electricity consumption metering separate device is characterized in that: comprise metering shell 1, touch-screen 2, input panel 3, CPU arithmetical unit 4,485 interfaces 5 that are connected with electric energy meter 10 or collector 6, the TCP/IP communication port 7 that is connected with server 8 and with usefulness electric loading 11 or electric energy meter 10 three-phase and four-line connection terminals 9.
By touch-screen 2 and the input panel 4 on the metering shell 1, the input circuit system diagram, CPU arithmetical unit 4 is identified, and draws operation rule.After the CPU arithmetical unit 4 identification circuit system diagram features, storage is the metering circuit parameter of electric loading 11 and the circuit parameter of indirect metering electric energy meter 10 directly.After 4 pairs of system diagram feature identifications of CPU arithmetical unit, calculate the circuit parameter of interlock circuit.
Leave 485 interfaces 5 and electric energy meter 10 communications on the metering shell 1, indirectly all circuit parameters such as the voltage of metering electric energy meter 10 meterings, electric current, power, electric weight, power factor (PF).Leave TCP/IP communication port 7 and server 8 communications on the metering shell 1.Connect with electric loading 11 by three-phase and four-line connection terminal 9.
The present invention is connected in the low-voltage circuit by the mode of three-phase and four-line, and metering obtains all circuit parameters such as the voltage, electric current, power, electric weight, power factor (PF) of circuit.
The present invention can upload figure of power system, perhaps by display screen and the self-built figure of power system of input panel.The CPU counter identifies the logical relation of power circuit, calculates the computing publicity between each circuit.The CPU counter can be stored all circuit parameters such as the voltage that is metered into, electric current, power, electric weight, power factor (PF).Also can store the data such as the voltage that obtains by computing, electric current, power.
The present invention by 485 communication ports with above-mentioned data transmission to collector, also can directly be transferred to server by the TCP/IP communication port.
Description of drawings
Fig. 1 is this easy building electricity consumption metering separate device line graph.
Fig. 2 is this easy building electricity consumption metering separate application of installation example.
Among the figure: 1 metering shell; 2. touch-screen; 3. input panel; 4.CPU arithmetical unit; 5.485 interface; 6. collector; 7. TCP/IP communication port; 8. server; 9. three-phase and four-line connection terminal; 10. electric energy meter; 11. use electric loading.
Embodiment
This electricity consumption metering separate apparatus structure comprises metering shell 1, touch-screen 2, input panel 3, CPU arithmetical unit 4,485 interfaces 5, TCP/IP communication port and three-phase and four-line connection terminal 9.
This electricity consumption metering separate device metering shell 1 leaves 485 interfaces 5 and carries out communication with collector 6.
This electricity consumption metering separate device metering shell 1 leaves TCP/IP communication port 7 and server 8 communications.
This electricity consumption metering separate device metering shell 1 leaves three-phase and four-line connection terminal 9, so that this electricity consumption metering separate device is connected in the circuit parameters of electric power such as the electric current of metering usefulness electric loading 11, voltage, power, electric weight, power factor.
This electricity consumption metering separate device metering shell 1 leaves 485 interfaces 5 and carries out communication with common electric energy meter 10.
This electricity consumption metering separate device is uploaded circuit system figure by CPU arithmetical unit 4, and perhaps at touch-screen 2 and input panel 3 input circuit system diagrams, CPU arithmetical unit 4 recognition system figure frameworks carry out computing.
This electricity consumption metering separate device CPU arithmetical unit 4 can be stored with parameters of electric power such as the electric current of electric loading 11, voltage, power, electric weight, power factors, can gather the measuring parameter of common electric energy meter 10, also can two kinds the parameter that obtains of approach carry out computing.
Case study on implementation:
Such as two branches of circuit of Fig. 2, branch electric energy meter 10 of having connected is by 485 interfaces 5 and the communications of this electricity consumption metering separate device.Another branch has connected with electric loading 11.This electricity consumption metering separate device is connected in the bus of circuit by three-phase and four-line connection terminal 9.Three-phase and four-line connection terminal 9 has measured the parameters of electric power such as the electric current, voltage, power, electric weight, power factor of bus.This electricity consumption metering separate device has collected the parameters of electric power such as the electric current that electric energy meter 10 is monitored, voltage, power, electric weight, power factor by 485 interfaces 5.By CPU arithmetical unit 4, under the operation of touch-screen 2 and input panel 3, identified this using electricity system framework, calculate with power informations such as the electric current of electric loading 11, voltage, power, electricity consumption, power factor (PF)s.Three groups of parameters by 485 interfaces 5, are issued collector 6.
Claims (1)
1. building electricity consumption metering separate device is characterized in that: comprise metering shell (1), touch-screen (2), input panel (3), CPU arithmetical unit (4), 485 interfaces (5) that are connected with electric energy meter (10) or collector (6), the TCP/IP communication port (7) that is connected with server (8) and with usefulness electric loading (11) or electric energy meter (10) three-phase and four-line connection terminal (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105817753A CN103048537A (en) | 2012-12-27 | 2012-12-27 | Building electricity itemized metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105817753A CN103048537A (en) | 2012-12-27 | 2012-12-27 | Building electricity itemized metering device |
Publications (1)
| Publication Number | Publication Date |
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| CN103048537A true CN103048537A (en) | 2013-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2012105817753A Pending CN103048537A (en) | 2012-12-27 | 2012-12-27 | Building electricity itemized metering device |
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| CN (1) | CN103048537A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106597087A (en) * | 2015-10-20 | 2017-04-26 | 华立科技股份有限公司 | Power collection circuit having load voltage complete-compensation function and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106597087A (en) * | 2015-10-20 | 2017-04-26 | 华立科技股份有限公司 | Power collection circuit having load voltage complete-compensation function and method |
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Application publication date: 20130417 |