CN1093293C - Managing system for power meter network - Google Patents
Managing system for power meter network Download PDFInfo
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- CN1093293C CN1093293C CN 95106713 CN95106713A CN1093293C CN 1093293 C CN1093293 C CN 1093293C CN 95106713 CN95106713 CN 95106713 CN 95106713 A CN95106713 A CN 95106713A CN 1093293 C CN1093293 C CN 1093293C
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- ammeter
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Abstract
The present invention relates to a networking management system for electric meters. A central station computer (1) comprises a bidirectional four-stage electric meter communication, control and full automatic management network composed of an electric meter user management program operated in the foreground and a communication program operated in the background, the network is hung on a 220V low voltage power network to be connected with an electric meter terminal (8) / an intelligent electric meter (10) through a local telephone line transmission controller (5), a power line transmission controller (6) and a wireless transmission controller (7), and the electric meter terminal (8) can be directly provided with 15 electric meters at most. The system of the present invention applies a bidirectional computer control technique and four kinds of communication techniques to electric meter networks, and automated management for power utilization in a city range is realized.
Description
The present invention relates to managing system for power meter network, belong to the technical field that four kinds of means of communication (wired, wireless, high pressure, low pressure carrier wave) is used for a fully automatic network, definite saying so one is adapted at two-way, level Four ammeter communication, control and the full-automatic supervising the network technology in the city scope.
In recent years, along with the development of electric industry, the contradiction of electricity consumption and pipe electricity becomes increasingly conspicuous, and the management system of power supply department expectation science replaces out-dated management styles.In order to solve the heavy work of checking meter, emerge a collection of automatic meter reading system; In order to solve electricity charge problem in poor harvest, many prepaid electricity card ammeters have appearred, in order to solve the problem of chargeing at times, released multiple rate intelligent electric meter again ... all this kind all can not fundamentally solve contradiction between electricity consumption and the pipe electricity.
Before this, the someone has proposed a kind of based on power line channel, and the watt-hour meter group is linked to be the method for statistics network or makes the method that three of transmission medium is shown automatic data acquisitions with power carrier.As Chinese patent 92110485.5 (CN1071006A, ammeter, water meter, gas meter automatic data acquisition system (ADAS)) and Chinese patent 9210061.X (CN1075225A, automatic statistical network for watt-hour meter).More than two kinds of methods all be unidirectional data acquisition system (DAS), only can satisfy that from ammeter (or three table) statistics is transferred to host computer, and host computer can't carry out FEEDBACK CONTROL to subordinate's table.Under the situation that generation is sneaked current or the user does not pay tariff, system can't effectively control the target ammeter.Therefore, two kinds of methods all can't realize the full automatic management of power use more than.
More than two kinds of methods all mention system by a host computer (central station host) and a plurality of concentrator (user terminal device), be connected across on the line of electric force, realize data acquisition by power line carrier.This method can only be confined among the scope of a low pressure power transformation device, and the range of application of system also is confined to building, a few building or a sub-district.
One of purpose of the present invention, adopt the two-way communication means, can image data, again can FEEDBACK CONTROL, it is except can be to each ammeter automatic data logging, can also assign the FEEDBACK CONTROL order by former approach, directly control the alarm lamp and the cut-off switch of ammeter, handle all kinds of situations in the power utilization network in real time.
Two of goal of the invention, low-voltage carrier communication, high pressure carrier communication, telephone network data communication and four kinds of means of communication of wireless data communications are synthetically applied to whole management system, make a data acquisition system (DAS) among a small circle upgrade to the interior power consuming administrative system of a city scope.
Task of the present invention is achieved through the following technical solutions: the power meter network automated management system, comprise the SPInet-IV of forming by central station computer, transmission control unit (TCU), ammeter terminal and ammeter, by 1 central station computer by 2 telephone line modems, 3 high-tension electricity modulator-demodular units and 4 wireless digital broadcasting stations respectively by local network and 5 local telephone transmission control unit (TCU)s, by high-tension network and 6 power line transmission controllers, link by wireless channel and 7 wireless transmission controllers; And all kinds of transmission control unit (TCU)s link by 220V low voltage electric network and 8 ammeter terminals or 10 intelligent electric meters, and the ammeter terminal can directly be with 15 9 of as many as through improved ammeter.Intelligent electric meter is meant the ammeter with communication and control function, at ammeter the place that relatively disperses is installed, with ammeter terminal and the ammeter in the intelligent electric meter replacement native system.The signal procedure that 1 central station computer comprises the ammeter user supervisor of front stage operation and running background forms that an ammeter two-way, level Four is communicated by letter, control and full-automatic supervising the network.
Should illustrate that 8 ammeter terminals are Single Chip Microcomputer (SCM) system, on the template by CPU, EPROM, Serial E
2PROM, I/O control, calendar clock chip, function monitor (WATCHDOG), interruptable controller is formed, 8 ammeter terminals hang on the 220V line of electric force by the low pressure carrier wave modulator-demodular unit, each ammeter terminal all has address and 4 ammeter addresses of one 12, and join with transmission control unit (TCU), each ammeter terminal band is 15 9 ammeters nearly, 8 ammeter terminals are connected by transmission line with exchanges data between the transmission control unit (TCU), it receives the count pulse of ammeter, add up the top of each ammeter at times, the peak, flat, paddy electric degree number is controlled the alarm lamp and the cut-off switch of each ammeter.The single-chip microcomputer intelligent control module that 5 local telephone transmission control unit (TCU)s, 6 power line transmission controllers, 7 wireless transmission controllers are made up of two CPU, wherein CPU2 is by the order of 232/TTL converter monitoring higher level central station; Go out look-at-me to CPU1, CPU1 connects the letter converter, carrying ripple MODEM by photoelectric commutator connects with 8 ammeter terminals by the 220V electrical network, 4095 8 ammeter terminals of each transmission control unit (TCU) may command, packet switch is all adopted in communication to the superior and the subordinate, and CRC check is to guarantee the correctness of data transmission.
The good effect that the present invention produces is: huge numbers of families' the ammeter and the central computer of electricity management department are unified into net, finish in real time at times and charge, automatic data logging, the electricity consumption status surveillance, automatic fee charging management, to functions such as the user's violating the regulations warning and the controls of cutting off the power supply, the various contradictions of the present management of power use have fundamentally been solved.Computer Control Technology and four kinds of communication technologys are applied to the ammeter network, form a two-way automated management system of level Four, really solved, the using electricity automation management that city scope is interior a big zone.Especially just can surf the Net after ordinary electric meter is transformed slightly, make overall cost reduce significantly.
Below in conjunction with the accompanying drawing progress this bright technology contents of the present invention is described:
Fig. 1. be structural principle synoptic diagram of the present invention.
Fig. 2. be ammeter terminal synoptic diagram of the present invention.
Fig. 3. be transmission control unit (TCU) synoptic diagram of the present invention.
Fig. 4. be central station computer principle schematic of the present invention.
Fig. 5. be embodiment of the invention synoptic diagram.
See Fig. 1, constitute the first order by 1 central station computer, 2 telephone modems, 3 high-tension electricity detuners, 4 wireless digital broadcasting stations; 5 local telephone transmission control unit (TCU)s, 6 power line transmission controllers, 7 wireless transmission controllers constitute the second level with 4 wireless digital broadcasting stations; The 8 ammeter terminals that hang on 220 volts of low voltage electric networks constitute the third level; 9 ammeters or 10 intelligent electric meters constitute the fourth stage, such SPInet-IV.9 ammeters are meant and add a cost less than 10 yuan photoimpact generating means on ordinary electric meter.
See Fig. 2,8 ammeter terminals are used for the various operational orders that transmission control unit (TCU) is sent are handled, received to the electric supply meter count pulse, and to transmission control unit (TCU) echo back data information.It is core that this template adopts one-chip computer, is equipped with various functional chips, constitutes an electric energy meter parameter acquisition control system with pulse collection counting, output control, data communication function.8 ammeter terminals are Single Chip Microcomputer (SCM) system, on the template by CPU, EPROM, Serial E
2PROM, interruptable controller, I/O control, calendar clock chip, function monitor (WATCHDOG), compositions such as photoelectricity isolation, power carrier modem.Ammeter pulse input is delivered to interruptable controller after the shaping circuit integer, produce look-at-me; Counted respectively according to interrupt source by CPU, current time that produces according to the calendar clock circuit again during counting and the split time table that sets in advance deposit the count value of each ammeter in different period count blocks.Template links with power carrier modem through the photoelectricity isolation by serial port, in order to communicate by letter with transmission control unit (TCU); CPU connects with the warning pilot lamp of ammeter through the I/O interface, connects with the cut-off switch of each ammeter through photoelectricity isolation and driving circuit again; Template is provided with power-fail detection circuit, and system can be saved in Serial E with the data of each ammeter when electrical network takes place to have a power failure
2Go among the PROM; Template prevents to overturn the generation that makes the systemic breakdown situation because of program with function monitor (WATCHDOG) circuit.8 ammeter terminals hang on the 220V line of electric force by the low pressure carrier wave modulator-demodular unit, and each 8 ammeter terminal all has one 12 address (abbreviation block address) and 4 ammeter addresses (abbreviation table address).Therefore each transmission control unit (TCU) can be with 4095 terminals at most, and each ammeter terminal can be with 15 ammeters, and wherein address 0 is the wildcard address.When block address was 0, expression all was suitable for all the ammeter terminals in the whole transmission control unit (TCU) compass of competency, when table address is 0, represent to this ammeter terminal with each ammeter all effective.The form of the exchange data using data block between ammeter terminal and the transmission control unit (TCU) sends, and data block is formed as follows:
Theing contents are as follows of data block:
| Block address X1 | Table address X2 | Block length N | Command word | Data (N-4 byte) |
2 bytes
Block address X1 accounts for 12, expression scope 0～4095
Table address X2 accounts for 4, expression scope 0～15
Data length: what bytes are the expression data block account for
Command word provides the coding of various control commands, and that encodes and order thes contents are as follows:
1. the ammeter terminal is carried out the initialization setting
2. calibration order is carried out initial setting up to the electric degree number and the state of each ammeter
3. copy current electric degree number
4. the period is provided with order (each period to charging at times is provided with)
5. the order of operating a switch
6. close a floodgate and order
7. warning order
8. remove the warning order
9. inquire about the ammeter state
10. remove the Reflector of ammeter
11. copy integral point electric degree number last month
12～255. is standby
See Fig. 3, transmission control unit (TCU) is the terminal of whole managing system for power meter network, the single-chip microcomputer intelligent control module that it is made up of two CPU.Its major function be by low-voltage powerline carrier communication from ammeter terminal image data, and control state orders such as (for example give warning that 8 ammeter terminals send each ammeter) operating a switch of each ammeter terminal.Simultaneously, the data that will gather are through various approach (example: modes such as wired, wireless and high pressure carrier wave) give 1 central station computer, and be controlled by the microsystem of central station.
Transmission control unit (TCU) adopts two CPU, CPU2 and communication converter link, by the 232/TTL change-over circuit, monitor higher level's communication line (being mainly used in wireless and the high pressure carrier wave), the order of sending when central station was detected by CPU2 when (comprising controller address), if the address of detecting is this controller address, then CPU2 sends look-at-me to CPU1, and communication converter is given to CPU1 with order wire, and carries out exchanges data by CPU1 and central station.CPU1 also isolates with carrier wave MODEM by photoelectricity and links, at the appointed time to subordinate's communication (for example image data and send each ammeter state and control each ammeter module).
Transmission control unit (TCU) includes time calendar clock, on the one hand as start timed task as regularly to ammeter terminal transmit mode and gather the current data of ammeter terminal, on the other hand when multiple rate accounting as with ammeter terminal school the time.
Functions such as watchdog and power down protection are arranged in the transmission control unit (TCU), be used to improve the stability of entire controller.And addressing circuit is arranged to determine the address of this transmission control unit (TCU).
Power supply has the measure of lightning protection, anti-electrical network transient fluctuation and anti-high frequency.CPU adopts the light lotus root with communicating by letter of carrier modem, to isolate the interference of electrical network.
The above transmission control unit (TCU) is meant wired, wireless and three kinds of high-tension electricity carrier waves.These three kinds of transmission control unit (TCU)s are communicated by letter with central station computer with different communication modes, and each transmission control unit (TCU) all has one 8 address, and therefore, a central station computer can be controlled 3 * 255 transmission control unit (TCU)s respectively.These three kinds of transmission control unit (TCU)s are to all adopting the mode of low-voltage carrier communication and subordinate's ammeter to link down.Because low-voltage carrier communication still can not be striden low pressure power transformation device at present, therefore in the scope of each low pressure power transformation device, adorn a transmission control unit (TCU), manage all ammeters in this scope.
Data communication mode also is to adopt to imitate according to the piece form, to the communication mode of subordinate table shown in ammeter terminal implementation method, transmission control unit (TCU) has increased the byte in transmission control unit (TCU) address to the data layout of higher level's central station computer in data block, data block contents is as follows:
| Transmission control device address T | Block address X1 | Table address X2 | Block length N | Command word | Data N-5 byte |
1 byte in transmission control device address wherein, expression scope 0～255
Block address X1, table address X2, data block length N as above save described
The command code that command word provides and theing contents are as follows:
1. order during the school: year, month, day, hour, min, second that the back is and then actual, when being used for higher level's central station to each transmission control unit (TCU) school.
2. calibration order: the indication transmission control unit (TCU) transmits initial electric degree value and state to subordinate's table of appointment.
3. meter reading order: read the electric degree number and the state of specifying ammeter from transmission control unit (TCU).
4. the period is provided with order: how the indication transmission control unit (TCU) is provided with accounting regime.
5. the order of operating a switch: to specifying ammeter to send the power off command of operating a switch.
6. close a floodgate and order: to specifying ammeter to send the order of closing a floodgate.
7. warning order: to specifying the ammeter order that gives a warning.
8. inquire about the ammeter current state
9. with addition of new table: when new ammeter user of registration, with this order to biography
Defeated controller is logined this project.
10. delete old table: when cancelling the ammeter user in a Geju City, order to biography with this
Defeated controller is cancelled this project.
11. warning clear command: cancel to specifying the warning of ammeter.
12. fault clearance: remove the Reflector of specifying ammeter.
The order 13. check meter: check meter to specifying ammeter.
14. read integral point data last month
15 to 255: standby
Transmission control unit (TCU) is carried out two class orders to subordinate's table except the order of monitoring higher level's central station at any time.One class is a standing order, and another kind of is instant order.Standing order is inserted transmission control unit (TCU) during by system design, and some timed tasks are set, as every month 5 to subordinate's table carry out to the time, checked meter or the like to subordinate's table in 1 day every month; Instant order is also promptly transmitted superior command to subordinate's table in real time by the instant order of order generation that higher level's central station is sent, and corresponding answer signal is returned the higher level center.
See Fig. 4,1 central station computer, computing machine is made up of 486 or 586 computer systems, link with 4 wireless digital broadcasting stations, 2 telephone line modems, 3 high pressure carrier modems respectively by three serial ports, in order to communicating by letter with three types transmission control unit (TCU), every kind of transmission control unit (TCU) can as many as 255.Therefore, the transmission control device that can control of central station has 765.
The software of central station divides the supervisory routine of front stage operation and the signal procedure of running background.
1. supervisory routine
Supervisory routine is finished following function:
(1) system management: operator's management
The electricity price management
Password is revised
DB Backup
(2) customer account management: transmission control unit (TCU) management
User management
The ammeter management
The normal work to do management
(3) electricity bill control
(4) inquiry
(5) statistical summaries
(6) withdraw from
Supervisory routine generates the various command record in real time in each administration module, these command record are stored among the file TIMETAB.DAT, background program regularly detects TIMETAB.DAT, discovery has uncompleted task, then carry out immediately, the result who carries out is recorded among the file MAILBOX.DAT, and supervisory routine should detect MAILBOX.DAT after giving an order, with the implementation status of sense command.
2. signal procedure
Signal procedure is a memory-resident program, and by the timing down trigger, groundwork is in background work: the order that the receiving management program is sent here sends order to transmission control unit (TCU); Receive the data of transmission control unit (TCU), generate data file for the supervisory routine refresh.
The data communication format of signal procedure and all kinds of transmission control unit (TCU)s as above saves described.
Seeing Fig. 5, is most preferred embodiment figure of the present invention
A kind of allocation plan of system is as follows:
Set up a central station computer by city management of power use department.
Set up a transmission control unit (TCU) under each substation transformer, transmission control unit (TCU) can be by wired, wireless and three kinds of modes of high-tension electricity carrier wave and central station contact, and every kind of transmission control unit (TCU) can reach 255.
The a plurality of ammeters of local electricity consumption meter terminal band for ammeter is relatively concentrated directly hang on the low voltage electric network, and the place that disperses at ammeter directly hangs on the electrical network with intelligent electric meter.
If online hang 100 transmission control unit (TCU)s by one, 100 ammeter terminals of each transmission control unit (TCU) band, 8 ammeters of each ammeter terminal average band then can be formed the network system of 80,000 ammeters.
Claims (4)
1. managing system for power meter network, comprise by central station computer, transmission control unit (TCU), SPInet-IV (1) central station computer that ammeter terminal and ammeter are formed is by (2) telephone line modem, (3) high-tension electricity modulator-demodular unit and (4) wireless digital broadcasting station are respectively by local network and (5) local telephone transmission control unit (TCU), by high-tension network and (6) power line transmission controller, link by wireless channel and (7) wireless transmission controller, its feature also is, said transmission control unit (TCU) is the terminal of whole managing system for power meter network, and pass through communication mode, the data of coming will be gathered, through low pressure carrier wave, the high pressure carrier wave, telephone network data and wireless data communications are given (1) central station computer, and carry out FEEDBACK CONTROL by (1) central station computer again; Wherein (5) local telephone transmission control unit (TCU), (6) power line transmission controller, (7) wireless transmission controller all link by 220V low voltage electric network and (8) ammeter terminal/(10) intelligent electric meter, and (8) ammeter terminal directly is with 15 (9) ammeters of as many as; The signal procedure that above-mentioned (1) central station computer comprises the ammeter user supervisor of front stage operation and running background forms that an ammeter two-way, level Four is communicated by letter, control and full-automatic supervising the network.
2. a kind of managing system for power meter network according to claim 1 is characterized in that: above-mentioned (8) ammeter terminal is a Single Chip Microcomputer (SCM) system, on the template by CPU, EPROM, Serial E
2PROM, window machine controller, I/O control, calendar clock, WATCHDOG forms, (8) the ammeter terminal hangs on the 220V line of electric force by the low pressure carrier wave modulator-demodular unit, each ammeter terminal all has address and 4 ammeter addresses of one 12, and join with transmission control unit (TCU), each ammeter terminal can be with nearly 15 (9) ammeters, (8) the ammeter terminal is connected by transmission line with exchanges data between the transmission control unit (TCU), it receives the count pulse of ammeter, add up the top of each ammeter at times, the peak, flat, paddy electric degree number is controlled the alarm lamp and the cut-off switch of each ammeter.
3. a kind of managing system for power meter network according to claim 1, it is characterized in that: the single-chip microcomputer intelligent control module that above-described (5) local telephone transmission control unit (TCU), (6) power line transmission controller, (7) wireless transmission controller are made up of two CPU, wherein CPU2 is by the order of 232/TTL converter monitoring higher level central station; Send look-at-me to CPU1, CPU1 connects the letter converter, carrying ripple MODEM by photoelectric commutator connects with (8) ammeter terminal by the 220V electrical network, 4095 (8) ammeter terminals of each transmission control unit (TCU) may command, packet switch is all adopted in communication to the superior and the subordinate, and CRC check is to guarantee the correctness of data transmission.
4. require 1 described managing system for power meter network according to patent, its characteristic is: above-mentioned (1) central station computer links with data radio station, wire line MODEM, high pressure carrier modem respectively by three serial ports, in order to communicate by letter with three types transmission control unit (TCU), every kind of transmission control unit (TCU) can reach 255, and the transmission control unit (TCU) that central station can be managed can reach 765.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95106713 CN1093293C (en) | 1995-06-19 | 1995-06-19 | Managing system for power meter network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95106713 CN1093293C (en) | 1995-06-19 | 1995-06-19 | Managing system for power meter network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1149161A CN1149161A (en) | 1997-05-07 |
| CN1093293C true CN1093293C (en) | 2002-10-23 |
Family
ID=5075981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95106713 Expired - Fee Related CN1093293C (en) | 1995-06-19 | 1995-06-19 | Managing system for power meter network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1093293C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103021086A (en) * | 2011-09-20 | 2013-04-03 | 北京圭利电子科技有限公司 | Equipment for realizing metering, display and management of multiple indoor energies |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100409268C (en) * | 2006-01-28 | 2008-08-06 | 李乐天 | Automatic KWH meter control system |
| CN105373968A (en) * | 2015-11-23 | 2016-03-02 | 国家电网公司 | Intelligent electric energy acquisition system |
| CN113115278A (en) * | 2020-01-10 | 2021-07-13 | 奉加微电子（上海）有限公司 | Automatic association pairing system and method for ammeter and circuit breaker |
-
1995
- 1995-06-19 CN CN 95106713 patent/CN1093293C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103021086A (en) * | 2011-09-20 | 2013-04-03 | 北京圭利电子科技有限公司 | Equipment for realizing metering, display and management of multiple indoor energies |
| CN103021086B (en) * | 2011-09-20 | 2015-03-18 | 北京圭利电子科技有限公司 | Equipment for realizing metering, display and management of multiple indoor energies |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1149161A (en) | 1997-05-07 |
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Owner name: SHENZHEN CITY CHENGXING AUTOMATIC SYSTEM CO., LTD. Free format text: FORMER NAME OR ADDRESS: CHENGXING MANUFACTURING AND TRADING CO., LTD., SHENZHEN CITY |
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Granted publication date: 20021023 Termination date: 20100619 |