CN2501059Y - Multi-user multifunctional network single-phase electric energy meter - Google Patents
Multi-user multifunctional network single-phase electric energy meter Download PDFInfo
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- CN2501059Y CN2501059Y CN 01260912 CN01260912U CN2501059Y CN 2501059 Y CN2501059 Y CN 2501059Y CN 01260912 CN01260912 CN 01260912 CN 01260912 U CN01260912 U CN 01260912U CN 2501059 Y CN2501059 Y CN 2501059Y
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Abstract
The utility model discloses a multifunctional and a multi-user single phase electric energy meter of net type which comprises a shell body, a display panel, an input and output terminal, a relay and a control circuit board arranged in the shell body. The phase line used by eight users is connected with the input and output terminal through a manganese and copper resistance sampling device and a relay contact point. The control circuit mainly comprises a power circuit, an input switch switching circuit, an electric quantity measuring circuit, a microcomputer processor, an E<2>PROM circuit, a drive circuit, a clock circuit, a wave carrying circuit and a display circuit. The utility model realizes the long-distance automatic management to the multi-rate electric quantity of users with the microcomputer processor which is arranged in the control circuit and whose memory has memory. The microcomputer processor transmits data communication with the superior variable station through the serial data communication mouth and a low voltage electric circuit arranged on the control circuit. The electricity supply for each household and each line in the controlled district and the monitoring, gathering, analyzing, controlling, balance and net-type management of the electricity consumption are realized.
Description
Technical field
The utility model relates to a kind of electric energy meter, refers to a kind of multi-user's multifunctional network formula single-phase electric energy meter especially.
Background technology
At present, electric energy meter has become the electricity metering instrument of each family, unit indispensability, and every charge calculation day, the staff will table look-up to the doorstep, computational costs, charge, and will be very loaded down with trivial details, and expend great amount of manpower and material resources.The remote automation kilowatt meter reading-out system is the developing direction, the particularly application of low pressure carrier wave reading technique of electricity consumption metering automation management, has more to have broad application prospects.But because present low pressure carrier wave technology limitation, if install the carrier-wave transmission circuit additional in each household one table, the realization remote automation is checked meter, and this certainly will increase cost, and market also can't be accepted.So, producer all adopts data acquisition to send the way of concentrator at present, promptly in several user scopes, install a concentrator additional, the data at each family are gathered by 485 buses (or other circuit), carry out data communication by carrier current channel, low-voltage supply line and higher level's concentrator again.Difficulty is all compared in the installation, maintenance of this data acquisition, send mode, makes the carrier meter reading technology be difficult to apply.
Summary of the invention
In view of the foregoing, the purpose of this utility model provides and a kind ofly realizes that remote automation is checked meter, multi-user's multifunctional network formula single-phase electric energy meter of network management.
For achieving the above object, the utility model is taked following design proposal: this multi-user's multifunctional network formula single-phase electric energy meter is by housing, display panel, input/output terminal and be built in control circuit board in the housing and relay etc. constitutes;
Described input/output terminal links to each other with each user's phase line; Each user's phase line forms through electric energy meter input terminal, relay tip, copper-manganese resistance sampling device, lead-out terminal and uses electric pathway;
Described control circuit mainly comprises power circuit, input switch commutation circuit, electric quantity metering circuit, micro processor, E
2PROM, driving circuit, clock circuit, carrier current channel and display circuit; The current signal of copper-manganese resistance sampling device is imported the electric quantity metering circuit through the input switch commutation circuit, and measures electric flux input micro processor with the voltage signal of importing, and calculates each user's timesharing energy value through micro processor; The parallel data mouth of micro processor links to each other with the clock circuit of preparing and carrying with battery with driving circuit again, with the break-make of control magnetic latching relay contact, read clock information and preserve operational data; The synchronous serial communication mouth of micro processor also and E
2PROM, display circuit link to each other, and carry out the permanent preservation of significant data and the demonstration of each user power utilization data; Micro processor serial data communication mouth carries out data communication by carrier current channel, low-voltage power line and change platform summary table.
Described multi-user's multifunctional network formula single-phase electric energy meter has 8 pairs of input/output terminals, can reach 8 users' electric energy metrical and quantitatively control, embodies multi-user's function.The parallel data mouth of described micro processor links to each other with the data port of drive circuit chip and clock chip respectively.Described clock chip is the chip that has RAM and battery, to realize the automatic preservation of off-position data.
Because the utility model adopts the above technical scheme, so have the following advantages: 1, because the utility model is provided with 8 pairs of input/output terminals, can bear the metering and the control of 8 single-phase user power utilization simultaneously, so an electric energy meter is equivalent to 8 single-phase electric energy meters.2,, realize that multi-user power-driven metering, multiple rate reach multifunctional managements such as quantitatively control because the utility model is provided with the micro processor that has control program in control circuit, it can be provided with various controls, way to manage as required.When each family power consumption reaches when purchasing electricity value or user and not closing the electricity charge on time, electric energy meter disconnects the magnetic latching relay contact automatically, stop power supply until import new purchase electric weight till.3, the utility model also can become the platform summary table by serial data communication mouth on the control circuit board and higher level and carry out data communication, realize every day timing meter reading and numeral for information about exchange, thereby reach power supply management system every day to the detection of the power supply of each household, every circuit in its restriction and electricity consumption situation, gather, analysis, control, clearing and network management.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the utility model multi-user multifunctional network formula single-phase electric energy hoist pennants.
Fig. 2 is the utility model multi-user multifunctional network formula single-phase electric energy meter control circuit board physical circuit figure.
Fig. 3 is the utility model user mode figure.
Measure good embodiment
As shown in Figure 1, the utility model multi-user multifunctional network formula single-phase electric energy meter is made of housing 1, display panel 2, input/output terminal 3 and the control circuit board 4 that is built in the housing 1.As shown in the figure, the utility model is the full electronic electric energy meter, and 1., 1. every electric energy meter has 8 pairs of input/output terminals '--8., 8. ', the metering and the control of 8 single-phase user power utilization of burden make an electric energy meter be equivalent to 8 single-phase electric energy meters.Each user's phase line through its copper-manganese resistance sampling device, relay tip respectively with 8 pairs of input/output terminals of electric energy meter 1. ', 2. ', 3. ' ... 8. link to each other.
Fig. 2 is the utility model multi-user multifunctional network formula single-phase electric energy meter control circuit board physical circuit figure.As shown in the figure, control circuit 4 mainly comprises power circuit 41, input switch commutation circuit 42, electric quantity metering circuit 43, micro processor, E
2PROM, driving circuit 44, clock circuit 45, carrier module 46, display circuit 47.
Power circuit 41 mainly comprises components and parts such as transformer T, rectifier bridge D, 5V voltage stabilizing chip U1, for the The whole control circuit provides 5V working power.
Input switch commutation circuit 42 comprises that mainly input switch switches components and parts such as chip U2, U3 (MAX4558), magnetic latching relay J1-J8, copper-manganese resistance sampling device, resistance, electric capacity; Each user's phase line respectively through the contact of separately copper-manganese resistance sampling device, relay to consuming device, the electricity consumption electric current produces pressure drop on copper-manganese resistance, this voltage signal links to each other with the input end X1---X8 of chip U2, U3 respectively; The signal output part of chip U2, U3 links to each other with signal input tube pin I+, the I-of electric quantity metering circuit 43 (CS5460A), control end A, the B of chip U2, U3, C link to each other with the control output pin of micro processor U4 respectively, with the timesharing of control input switch each user's signal are imported the electric quantity metering circuit and carry out the electricity consumption metering.
The parallel data mouth D of micro processor U4
0--D
7Respectively with chip U5, the U6 (TPIC6B273) of driving circuit 44 and the data port D of clock chip 45
0--D
7Link to each other, be able to the control signal of output control relay and obtain the calculating that clock signal is carried out the timesharing electric weight; Clock chip is the M84T86 that carries RAM and battery, with guarantee when outage operational data and clock signal do not lost; Synchronous serial communication mouth (SSP) and the E of micro processor U4
2SCK, S1, the S0 pin of PROM chip U7 and metering circuit 43 link to each other, and through or door buffer circuit and display circuit 47 link, micro processor can carry out the long preservation of the reading of continuous data, significant data, and the demonstration of each user power utilization data.
The asynchronous serial data communication port (SCI) of micro processor U4 links to each other with carrier current channel, realizes and the data communication that becomes the total electric energy meter of platform through low-voltage supply line.
Each user's phase line links to each other with the input/output terminal of electric energy meter through its copper-manganese resistance sampling device, through the current signal input electric quantity metering circuit of input switch commutation circuit timesharing with each family, try to achieve its energy value with the voltage input signal computing, be transferred to micro processor and calculate at times total, peak, each family, flat, paddy energy value (realizing multiple rate tou power price), be stored in E
2Among the PROM.If the user does not in time pay or close the electricity charge, microprocessor output control signal is cut off this user's power supply by driving circuit automatic cutout magnetic latching relay.Simultaneously, the utility model also can become the platform summary table through low-voltage power line and higher level by the serial data communication mouth on the control circuit board and carry out data communication, realization timing meter reading every day and the exchange of numeral for information about, thereby reach power supply management system every day to the detection of the power supply of each household, every circuit in its restriction and electricity consumption situation, gather, analyze, control, settle accounts, realize network management.
Core of the present utility model has the micro processor of control program in being, it can be provided with various controls, way to manage as required, realizes multifunctional management.The user can select prepayment mode, purchases electricity during value when each family power consumption reaches, and this electric energy meter disconnects the magnetic latching relay contact cut-out user power supply automatically, stop power supply until import into new purchase electric weight till.The user also can select the monthly billing mode, if the user does not close the electricity charge on time, this electric energy meter disconnects the magnetic latching relay contact automatically, stops power supply until importing into till the electricity charge close signal.
As shown in Figure 3, can one three-phase multifunctional networking electric energy meter 300 be installed at this area's step down side for a certain sub-district, at every several single-phase multifunctional networking electric energy meters 3001,3002,3003,3004 of installing mutually ..., each single-phase multifunctional electric energy meter is hung 8 users down.Three-phase multifunctional networking electric energy meter links to each other with higher level's power supply management system by telephone line network.Three-phase multifunctional networking electric energy meter is gathered the meritorious and reactive energy value of the total three-phase of this transformer, and total at times with divide equal, peak, paddy energy value; Can carry out the control of definite value control or executive system to master switch if desired to its master switch; And carry out data communication through telephone network and management system computing machine by the modulator-demodular unit in showing, that realizes each user power utilization data of this sub-district uploads network management.
The above only is preferred embodiment of the present utility model, and the equivalent transformation of any basic utility model technical scheme all belongs within the utility model protection domain.
Claims (4)
1, a kind of multi-user's multifunctional network formula single-phase electric energy meter is characterized in that: it is by housing, display panel, input/output terminal and be built in control circuit board in the housing and relay etc. constitutes;
Described input/output terminal links to each other with each user's phase line; Each user's phase line forms through electric energy meter input terminal, relay tip, copper-manganese resistance sampling device, lead-out terminal and uses electric pathway;
Described control circuit mainly comprises power circuit, input switch commutation circuit, electric quantity metering circuit, micro processor, E
2PROM, driving circuit, clock circuit, carrier current channel and display circuit; The current signal of described copper-manganese resistance sampling device is imported the electric quantity metering circuit through the input switch commutation circuit, and measures electric flux input micro processor with the voltage signal of importing, and calculates each user's timesharing energy value through micro processor; The parallel data mouth of micro processor links to each other with the clock circuit of preparing and carrying with battery with driving circuit again, with the break-make of control magnetic latching relay contact, read clock information and preserve operational data; The synchronous serial communication mouth of micro processor also and E
2PROM, display circuit link to each other, and carry out the permanent preservation of significant data and the demonstration of each user power utilization data; Micro processor serial data communication mouth carries out data communication by carrier current channel, low-voltage power line and change platform summary table.
2, multi-user's multifunctional network formula single-phase electric energy meter according to claim 1 is characterized in that: described multi-user's multifunctional network formula single-phase electric energy meter has 8 pairs of input/output terminals.
3, the single-phase ammeter of multi-user's multifunctional network formula according to claim 1 is characterized in that: the parallel data mouth of described micro processor links to each other with the data port of drive circuit chip and clock chip respectively.
4, according to claim 1 or the single-phase ammeter of 3 described multi-user's multifunctional network formulas, it is characterized in that: described clock chip is the chip that has RAM and battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01260912 CN2501059Y (en) | 2001-09-05 | 2001-09-05 | Multi-user multifunctional network single-phase electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01260912 CN2501059Y (en) | 2001-09-05 | 2001-09-05 | Multi-user multifunctional network single-phase electric energy meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2501059Y true CN2501059Y (en) | 2002-07-17 |
Family
ID=33668963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01260912 Expired - Fee Related CN2501059Y (en) | 2001-09-05 | 2001-09-05 | Multi-user multifunctional network single-phase electric energy meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2501059Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101553736B (en) * | 2006-10-02 | 2012-10-10 | 美国亚德诺半导体公司 | Integrated energy metering system |
| CN103884907A (en) * | 2014-03-31 | 2014-06-25 | 深圳市中电电力技术股份有限公司 | Sampling device, method and system for multi-loop electricity meter of electric power distribution cabinet |
-
2001
- 2001-09-05 CN CN 01260912 patent/CN2501059Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101553736B (en) * | 2006-10-02 | 2012-10-10 | 美国亚德诺半导体公司 | Integrated energy metering system |
| CN103884907A (en) * | 2014-03-31 | 2014-06-25 | 深圳市中电电力技术股份有限公司 | Sampling device, method and system for multi-loop electricity meter of electric power distribution cabinet |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |