CN201518037U - Concentrator used for centralized meter reading system of low-voltage power consumers - Google Patents
Concentrator used for centralized meter reading system of low-voltage power consumers Download PDFInfo
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- CN201518037U CN201518037U CN2009202364971U CN200920236497U CN201518037U CN 201518037 U CN201518037 U CN 201518037U CN 2009202364971 U CN2009202364971 U CN 2009202364971U CN 200920236497 U CN200920236497 U CN 200920236497U CN 201518037 U CN201518037 U CN 201518037U
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Abstract
The utility model discloses a concentrator used for a centralized meter reading system of low-voltage power consumers, comprising a 32-bit ARM controller, having a remote update module inside; a storage module, connected with the 32-bit ARM controller bidirectionally; an uplink communication module, connected with the remote update module of the 32-bit ARM controller bidirectionally; a carrier communication module, connected with the 32-bit ARM controller bidirectionally; a three-phase carrier modulation module, connected with the carrier communication module bidirectionally and with a three-phase electric power line; a communication interface module, connected with the 32-bit ARM controller bidirectionally; and a power supply module, connected with the three-phase electric power line for supplying power for the 32-bit ARM controller, the carrier communication module and the communication interface module.
Description
[technical field]
The utility model relates to a kind of concentrator that is used for low-voltage power user automatic meter reading system.
[background technology]
Existing concentrator is the core of whole kilowatt meter reading-out system, receives down order, finishes systemic-function and realizes; Each distribution transforming low-pressure side is installed a data concentrator, the up GPRS passage that passes through is connected with master station, descendingly link to each other with acquisition terminal (or carrier wave meter) by line of electric force, therefore, each system development person can work hard on concentrator, the function of concentrator, performance also directly reflect the quality of a centralized meter-reading system.The communication performance of the hardware configuration of numerous domestic producer and carrier channel is also similar at present, and different just different manufacturers have the different separately mechanism of checking meter, basic communication protocol.Therefore reflected different manufacturers, the otherness of product, all there is different problems in the product of at present a lot of producers, and for example: it is not high or unstable to copy and accept rate, and it is heavy that system debugs work in earlier stage, and maintenance workload is big or the like.
With regard to power line carrier communication, develop along with development of technologies.According to domestic practice for many years as can be known, the carrier communication mode that is fit to China's power grid environment at present is the communication mode of spread spectrum (Spread Spectrum Communication)+phase modulation, also is domestic a kind of power line carrier communication mode with the most use.And the carrier communication unit of the channel chip that we adopt has adopted spread spectrum and QPSK (quarternary phase-shift keying (QPSK)) modulation system, and has used CDMA (CDMA) communication technology of variable pseudo-random code speed (bandwidth) first in centralized meter-reading system.Pseudo-random code speed can reach 15K and 30K, owing to adopt the QPSK modulation technique, under the constant situation of bandwidth, data rate is a times of traditional BP SK (binary phase shift keying) modulation system, can reach 1Kbps and 500bps according to the speed different pieces of information speed of pseudo-random code.Adopted 63 Gold/Kasami sequences simultaneously, thereby realized CDMA, the interference reduction between the Jiang Tai district is to minimum.
Yet, existing concentrator inside does not have the remote update module, like this, can not realize the renewal of primary control program in the concentrator by Long-distance Control, during each the renewal, the concentrator that needs upgrade must be taken off, upgrade then, be put into the original place after the renewal again, therefore, system upgrade is cumbersome, the waste of manpower resource, and maintenance workload is big.In order to address the above problem, the inventor designs the utility model.
[utility model content]
The utility model has overcome the deficiency of above-mentioned technology, and a kind of concentrator that is used for low-voltage power user automatic meter reading system that can do to realize the remote system renewal in the main website drilling is provided.
For achieving the above object, the utility model has adopted following technical proposal:
Be used for the concentrator of low-voltage power user automatic meter reading system, it includes:
32 ARM controllers, its inside is provided with the remote update module;
Memory module is with 32 two-way connections of ARM controller;
The uplink communication module is with two-way connection of remote update module in 32 ARM controllers;
Carrier communication module is with 32 two-way connections of ARM controller;
Three-phase carrier modulation module is connected and is connected with three-phase power line with carrier communication module is two-way respectively;
Communication interface modules is with 32 two-way connections of ARM controller;
Power module is connected with three-phase power line and is 32 ARM controllers, carrier communication module, communication interface modules power supply.
Described communication interface modules includes infrared interface and RS485 interface.
Described communication interface modules includes infrared interface and RS232 interface.
Described 32 ARM controllers are that a model is 32 8-digit microcontrollers of PL3201C.
Described memory module comprises 5 FLASH storeies.
The carrier chip that it is PL3201C that described carrier communication module includes three models.
Described three-phase carrier modulation module includes three carrier modulation unit, each carrier modulation unit respectively with one mutually line of electric force and carrier chip connect, each carrier modulation unit all includes carrier wave receiving circuit and carrier wave transtation mission circuit.
Compared with prior art, the beneficial effects of the utility model are:
1, the primary control program of concentrator can pass through remote update, improves practicality, efficiency in the total system greatly, and for later system upgrade, maintenance lay the foundation, saves human resources and maintenance workload;
2, a new step is brought up in the Long-distance Control of concentrator and long-range setting, and most functions of concentrator can be controlled realization by the main website server;
3, concentrator adopts principal and subordinate's mode of operation, and master concentrator is can cascade a plurality of from concentrator, and uplink communication channel and master station communication by master concentrator, thus realize master concentrator and cascade thereof from the exchanges data between concentrator and the main website.
4, comprehensive our years'experiences of concentrator design has the good mechanism of checking meter and stability.
[description of drawings]
Fig. 1 is a block scheme of the present utility model;
Fig. 2 is the circuit theory diagrams of 32 ARM controllers of the present utility model and memory module;
Fig. 3 is the circuit theory diagrams of memory module of the present utility model;
Fig. 4 is three groups of carrier chip circuit theory diagrams of the present utility model;
Fig. 5 is the circuit theory diagrams of three-phase carrier modulation module of the present utility model.
[embodiment]
Be described in further detail below in conjunction with accompanying drawing and embodiment of the present utility model:
Referring to Fig. 1, the utility model is the concentrator that is used for low-voltage power user automatic meter reading system, and it includes 32 ARM controllers 1, memory module 2, uplink communication module 3, carrier communication module 4, three-phase carrier modulation module 5, communication interface modules 6, power module 7.
Referring to Fig. 2, described 32 ARM controller 1 inside are provided with the remote update module.It is the 32 8-digit microcontroller U1 of PL3201C that 32 ARM controllers 1 adopt the model of PHILIPS company, and it has following characteristic:
(1), 32 ARM7TDMI-S microprocessors, LQFP144 encapsulation.
(3), be implemented in systems programming (ISP) by boot load module in the sheet and at application programming (IAP).512 byte row programming times were 1ms.
(4), EmbeddedICE-RT and embedded tracking interface use the interior RealMonitor software of sheet that task is carried out real-time debug and support that run time version is carried out glitch-free high-speed real-time to be followed the tracks of.
(6), 2 32 bit timing devices (be with 4 tunnel catch and 4 tunnel passages relatively), PWM unit (6 tunnel output), real-time clock and house dog.
(7), a plurality of serial line interface, comprise 2 16C550 industrial standard UART, High Speed I 2C interface (400kbit/s) and 2 SPI interfaces.
(8), vectorial interruptable controller.Configurable priority and vector address.
(10), 112 universaling I/O ports (can bear 5V voltage) nearly, the external interrupt pin of 9 edges or level triggers.
(11), can realize being to the maximum the CPU operating frequency of 60MHz by PLL in the sheet.
(13), 2 low-power consumption modes: free time and power down.
(14), by external interrupt processor is waken up from power-down mode.
Referring to Fig. 3, described memory module 2 and 1 two-way connection of 32 ARM controllers.Memory module 2 comprises 5 FLASH storer U2, U3, U4, U5, U6.
Two-way connection of remote update module in described uplink communication module 3 and 32 the ARM controllers 1; Described uplink communication module 3 adopts GPRS or cdma communication mode to be connected with master station, concentrator can be connected with master station by this module.Because 32 ARM controller 1 inside are provided with the remote update module, when needing to upgrade the primary control program of concentrator, in main website, new program is passed to the remote update module by uplink communication module 3, just can realize the renewal of system easily.
Referring to Fig. 4, the two-way connection of carrier communication module in described carrier communication module 4 and 32 the ARM controllers 1, carrier chip A, B, C that it is PL3201C that carrier communication module 4 includes three models.
Referring to Fig. 5, described three-phase carrier modulation module 5 one ends respectively with three two-way connections of carrier chip, the other end is connected with three-phase power line.Acquisition terminal or carrier power meter can be connected with three-phase carrier modulation module 5, realize that acquisition terminal or carrier power meter and concentrator adopt the power carrier form to communicate by letter.Described three-phase carrier modulation module 5 includes three carrier modulation unit, each carrier modulation unit respectively with one mutually line of electric force and carrier chip connect, each carrier modulation unit all includes carrier wave transtation mission circuit and carrier wave receiving circuit.
Now with A mutually the carrier modulation unit that connects of line of electric force be the inner structure of example explanation carrier modulation unit.The carrier wave transtation mission circuit mainly comprises power amplification circuit, and power amplification circuit includes four triode Q1, Q4, Q7, Q11.The carrier communication signal sends from 32 ARM controllers 1, behind a carrier chip A, from SIGIN-A ingoing power amplifying circuit, through power amplification circuit amplify and capacitor C 44, inductance L 14 finish shaping filter after, be coupled on the low-voltage power line by pickup coil again, finish carrier wave and send.Bilateral diode D24 plays a protective role.The carrier wave receiving circuit is mainly formed the shunt-resonant circuit by inductance L 17 and capacitor C 7, C50, resonance is 120KHz with the centre frequency, finish the bandpass filtering to useful signal, signal enters main control MCU module through carrier communication module then, carries out data analysis again and handles.
The inner structure of the carrier modulation unit that B phase, C phase line of electric force connect is the same, needn't describe in detail at this.
Described communication interface modules 6 and 1 two-way connection of 32 ARM controllers; Communication interface modules 6 includes infrared interface and RS485 interface; Also can include infrared interface and RS232 interface.
Claims (7)
1. the concentrator that is used for low-voltage power user automatic meter reading system is characterized in that including:
32 ARM controllers (1), its inside is provided with the remote update module;
Memory module (2) is with two-way connection of 32 ARM controllers (1);
Uplink communication module (3) is with two-way connection of remote update module in 32 ARM controllers (1);
Carrier communication module (4) is with two-way connection of 32 ARM controllers (1);
Three-phase carrier modulation module (5) is connected and is connected with three-phase power line with carrier communication module (4) is two-way respectively;
Communication interface modules (6) is with two-way connection of 32 ARM controllers (1);
Power module (7) is connected with three-phase power line and is 32 ARM controllers (1), carrier communication module (4), communication interface modules (6) power supply.
2. the concentrator that is used for low-voltage power user automatic meter reading system according to claim 1 is characterized in that described communication interface modules (6) includes infrared interface and RS485 interface.
3. the concentrator that is used for low-voltage power user automatic meter reading system according to claim 1 is characterized in that described communication interface modules (6) includes infrared interface and RS232 interface.
4. according to claim 2 or the 3 described concentrators that are used for low-voltage power user automatic meter reading system, it is characterized in that described 32 ARM controllers (1) are that a model is 32 8-digit microcontrollers (U1) of PL3201C.
5. according to claim 2 or the 3 described concentrators that are used for low-voltage power user automatic meter reading system, it is characterized in that described memory module (2) comprises 5 FLASH storeies (U2, U3, U4, U5, U6).
6. according to claim 2 or the 3 described concentrators that are used for low-voltage power user automatic meter reading system, it is characterized in that described carrier communication module (4) carrier chip (A, B, C) that to include three models be PL3201C.
7. according to claim 2 or the 3 described concentrators that are used for low-voltage power user automatic meter reading system, it is characterized in that described three-phase carrier modulation module (5) includes three carrier modulation unit, each carrier modulation unit respectively with one mutually line of electric force and carrier chip connect, each carrier modulation unit all includes carrier wave receiving circuit and carrier wave transtation mission circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202364971U CN201518037U (en) | 2009-09-23 | 2009-09-23 | Concentrator used for centralized meter reading system of low-voltage power consumers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202364971U CN201518037U (en) | 2009-09-23 | 2009-09-23 | Concentrator used for centralized meter reading system of low-voltage power consumers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201518037U true CN201518037U (en) | 2010-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202364971U Expired - Lifetime CN201518037U (en) | 2009-09-23 | 2009-09-23 | Concentrator used for centralized meter reading system of low-voltage power consumers |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102354441A (en) * | 2011-09-20 | 2012-02-15 | 深圳市科陆电子科技股份有限公司 | Concentrator-network-based meter reading system and method |
| CN102435803A (en) * | 2011-09-06 | 2012-05-02 | 五千年中科微电子（中山）有限公司 | Modular carrier intelligent electric energy meter |
| CN105719471A (en) * | 2016-03-29 | 2016-06-29 | 国网上海市电力公司 | Concentrator GPRS (general packet radio service) signal extender |
| CN109298321A (en) * | 2018-11-10 | 2019-02-01 | 新开普电子股份有限公司 | A kind of comprehensive debugging device |
| CN111337871A (en) * | 2020-02-29 | 2020-06-26 | 贵州电网有限责任公司 | Electric energy meter and terminal communication module IO port level adjustable circuit |
-
2009
- 2009-09-23 CN CN2009202364971U patent/CN201518037U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435803A (en) * | 2011-09-06 | 2012-05-02 | 五千年中科微电子（中山）有限公司 | Modular carrier intelligent electric energy meter |
| CN102354441A (en) * | 2011-09-20 | 2012-02-15 | 深圳市科陆电子科技股份有限公司 | Concentrator-network-based meter reading system and method |
| CN105719471A (en) * | 2016-03-29 | 2016-06-29 | 国网上海市电力公司 | Concentrator GPRS (general packet radio service) signal extender |
| CN109298321A (en) * | 2018-11-10 | 2019-02-01 | 新开普电子股份有限公司 | A kind of comprehensive debugging device |
| CN111337871A (en) * | 2020-02-29 | 2020-06-26 | 贵州电网有限责任公司 | Electric energy meter and terminal communication module IO port level adjustable circuit |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100630 |
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| CX01 | Expiry of patent term |