CN103780321A - Intelligent meter fault identifying system - Google Patents
Intelligent meter fault identifying system Download PDFInfo
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- CN103780321A CN103780321A CN201410031053.XA CN201410031053A CN103780321A CN 103780321 A CN103780321 A CN 103780321A CN 201410031053 A CN201410031053 A CN 201410031053A CN 103780321 A CN103780321 A CN 103780321A
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Abstract
The invention relates to an intelligent meter fault identifying system. The intelligent meter fault identifying system comprises a power line carrier module connected with an alternating-current 220 V electric supply power grid, the data output port of the power line carrier module is connected with the input end of a carrier control switching module, the output end of the carrier control switching module is connected with a central processing unit, the central processing unit is connected with a data port of an infrared communication module and an I/O port of an upper computer communication module respectively, transmits communication signals to the upper computer communication module, is connected with a display module, outputs display signals to the display module, and is connected with a keyboard input module to achieve data exchange of keyboard control, and a power module supplies electricity to the whole system. According to the intelligent meter fault identifying system, two low-voltage carrier modulation modes mainly used in an existing electric system and an intelligent meter infrared reading mode are organically combined, and the intelligent meter fault identifying system simple and convenient to use is formed.
Description
Technical field
The invention belongs to the intelligent meter fault distinguishing technical field that electric power system is used, be specifically related to a kind of intelligent meter fault distinguishing system.
Background technology
The low pressure communication media of electric power system mesolow power information acquisition system, mainly adopts low-voltage power line, and utilizes low-voltage carrier communication technology to carry out the collection of data at present.
This power information acquisition system, first by intelligent meter by the carrier module excessively built-in information exchanges such as table number, electric weight, the amount of money take power line as carrier, be uploaded in the collector that is arranged on corresponding platform district low-pressure side; By collector, information exchange is crossed to GPRS aspect again and upload collection main website.
Along with the use of intelligent meter, marketing low pressure management mode generation respective change, per diem carries out user's management, and analyze every day to the user profile of teletransmission collection, understands user power utilization situation, processes in time the problem of finding; The so just promptness to teletransmission image data, accuracy and propose very high request, low-voltage customer power information gathers success rate at present becomes the bottleneck of this new management mode of restriction.Low-voltage customer power information in electric power system gathers success rate can not reach 100%, it is mainly the aspect using due to low-voltage carrier communication technology, that data signal modulation is arrived on 220/380V low-voltage power line, be subject to the fluctuation shock effect of electric power networks amplitude, frequency etc., and the attenuation feature of perceptual device itself, cause the carrier communication module in intelligent electric meter to become the main consumable accessory in system, thereby the entirety that has reduced acquisition system is copied and accepted success rate, and this impact is long-term and lasting.
To the unsuccessful solution of intelligent meter teletransmission be at present, first analysis foundation archives, after errorless, arrange the respective episode middle controller carrier module technical staff of manufacturer and the family staff's on-site verification of operation power dimension, utilize the commissioning device of our factory to debug, staff need carry the testing equipment of two kinds of different carrier modes to gathering unsuccessful intelligent meter, and infrared test equipment, and intelligent meter is carried out to fault distinguishing.But testing equipment, need to use special reception instrument or notebook computer, and connect carrier communication module, infrared test also separately needs a set of equipment, carry at scene, connecting test equipment, implement all unusual troubles of test, and the time average of an intelligent meter of test needs 20 minutes, and because element in connection circuit is more, must be instructed by professional and technical personnel, cannot large area use; In actual use, old testing equipment, because kind is more, is difficult for preparing, carrying, and often causes Field Force that intelligent fault table is judged to be to the phenomenon that whole table fault is changed without exception, causes the waste of a large amount of equipment funds.Changing equipment, the labour cost of a tool intelligent meter compares with changing a carrier module, exceed 8-10 doubly, this does not also comprise changes the intelligent meter loss causing to user that need to have a power failure, after changing table, business change brings unnecessary trouble to user, repeatedly changes table and brings negative effect cannot estimate especially to intelligent meter quality.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, and propose a kind of intelligent meter fault distinguishing system.
The present invention solves its technical problem and takes following technical scheme to realize:
A kind of intelligent meter fault distinguishing system, comprise the power carrier module being connected with alternating current 220V utility grid, the data-out port of power carrier module is inputted short connection with carrier Control handover module, the output of ripple control handover module is connected with central processing unit, central processing unit is connected with the FPDP of infrared communication module respectively, be connected with the I/O port of host computer communication module, signal of communication is transferred to host computer communication module, be connected with display module, to display module output display signal, be connected with keyboard input module, realize the exchanges data of Keyboard Control, described power module is whole system power supply.
And, concrete ancient cooking vessel letter carrier module and the Neusoft's carrier module that adopts two relations in parallel of described power carrier module, wherein,
Ancient cooking vessel letter carrier module, carrier chip model: TCC081C; Centre carrier frequency: 421kHz; Reference carrier frequency: 401kHz～441kHz; Modulation system: BFSK; Carrier communication speed: 50/1200bps
Neusoft's carrier module, carrier chip model: PLCI36G-III-E; Centre carrier frequency: 270kHz; Reference carrier frequency: 270kHz ± 15kHz; Modulation system: BFSK; Carrier communication speed: 330bps,
Above two kinds of carrier modules in whole circuit in relation in parallel, but at one time, can only have one in running order, operating state is by the external hand switch control of carrier Control handover module.
And described infrared communication module adopts the infrared communication module of TL-IRM838B2 model.
And described keyboard input module is the QWERTY keyboard being connected with central processing unit by serial ports.
And described host computer communication module comprises serial data receiving function integrated circuit MAX232CPE (16) and interface integrated circuit LB184 (MAX485), realize serial communication function and drive and serial data receiving function.
And described carrier Control handover module, can specifically adopt external hand control switch.
And described power module is VAD DC power supply, adopt the supply power mode of the direct step-down rectifier of autotransformer, linear voltage stabilization.
Advantage of the present invention and good effect are
1, the technical solution adopted in the present invention is, by the main two kinds of low pressure carrier wave modulation systems (270kHz and 470kHz) that use in current electric power system, and the infrared mode of copying and accepting of intelligent meter, take fault distinguishing as object, combine, form one succinctly, intelligent meter fault distinguishing system easily.
2, system of the present invention is easy to carry, testing time shortened to about one minute, simultaneously easy and simple to handle, be applicable to on-the-spot operation maintenance librarian use, common staff gets final product complete operation, simple to operate, interface is clear, powerful, and accurate failure judgement reason, be easy to large scale application.
Accompanying drawing explanation
Fig. 1 is the system configuration block diagram of system of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention process is further described, following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
A kind of intelligent meter fault distinguishing system, as shown in Figure 1, power carrier module, carrier Control handover module, central processing unit, infrared communication module, power module, host computer communication module, display module and keyboard input module,
The communication port of described power carrier module is electrically connected mutually with alternating current 220V utility grid, the data-out port of power carrier module is inputted short connection with carrier Control handover module, the output of ripple control handover module is connected with central processing unit, central processing unit is connected with the FPDP of infrared communication module respectively, be connected with the I/O port of host computer communication module, signal of communication is transferred to host computer communication module, the Asynchronous communications port of host computer communication module is connected with long-range host computer by RS232 or USB interface, simultaneously, the liquid crystal output port of central processing unit is connected with display module, to display module output display signal, the button control output end mouth of central processing unit is connected with keyboard input module, realize the exchanges data of Keyboard Control, described power module is whole system power supply.
In specific embodiment of the invention, concrete ancient cooking vessel letter carrier module and the Neusoft's carrier module that adopts two relations in parallel of described power carrier module, wherein,
Ancient cooking vessel letter carrier module, carrier chip model: TCC081C; Centre carrier frequency: 421kHz; Reference carrier frequency: 401kHz～441kHz; Modulation system: BFSK; Carrier communication speed: 50/1200bps
Neusoft's carrier module, carrier chip model: PLCI36G-III-E; Centre carrier frequency: 270kHz; Reference carrier frequency: 270kHz ± 15kHz; Modulation system: BFSK; Carrier communication speed: 330bps,
Above two kinds of carrier modules in whole circuit in relation in parallel, but can only have at one time one in running order, the change of operating state is responsible for coordination by central processing unit, by external switch control, is applicable to the power communication of above two kinds of carrier modules.
In specific embodiment of the invention, described infrared communication module adopts the infrared communication module of TL-IRM838B2 model (wide operating voltage 2.7V～5.5V module package inner shield output level coupling TTL cmos circuit).
In specific embodiment of the invention, described keyboard input module comprises QWERTY keyboard input disc module, communicates by serial ports and central processing unit.
In specific embodiment of the invention, described host computer communication module comprises serial data receiving function integrated circuit MAX232CPE (16) and interface integrated circuit LB184 (MAX485), realizes serial communication function and drives and serial data receiving function.
In specific embodiment of the invention, described carrier Control handover module, can specifically adopt external hand control switch.
In specific embodiment of the invention, described power module is VAD DC power supply, adopts the supply power mode of the direct step-down rectifier of autotransformer, linear voltage stabilization, and it is received on the center line N of single phase alternating current power supply with reference to ground end GND.
Claims (7)
1. an intelligent meter fault distinguishing system, it is characterized in that: comprise the power carrier module being connected with alternating current 220V utility grid, the data-out port of power carrier module is inputted short connection with carrier Control handover module, the output of ripple control handover module is connected with central processing unit, central processing unit is connected with the FPDP of infrared communication module respectively, be connected with the I/O port of host computer communication module, signal of communication is transferred to host computer communication module, be connected with display module, to display module output display signal, be connected with keyboard input module, realize the exchanges data of Keyboard Control, described power module is whole system power supply.
2. intelligent meter fault distinguishing system according to claim 1, is characterized in that: concrete ancient cooking vessel letter carrier module and the Neusoft's carrier module that adopts two relations in parallel of described power carrier module, wherein,
Ancient cooking vessel letter carrier module, carrier chip model: TCC081C; Centre carrier frequency: 421kHz; Reference carrier frequency: 401kHz～441kHz; Modulation system: BFSK; Carrier communication speed: 50/1200bps
Neusoft's carrier module, carrier chip model: PLCI36G-III-E; Centre carrier frequency: 270kHz; Reference carrier frequency: 270kHz ± 15kHz; Modulation system: BFSK; Carrier communication speed: 330bps,
Above two kinds of carrier modules in whole circuit in relation in parallel, but at one time, can only have one in running order, operating state is by the external hand switch control of carrier Control handover module.
3. intelligent meter fault distinguishing system according to claim 1, is characterized in that: described infrared communication module adopts the infrared communication module of TL-IRM838B2 model.
4. intelligent meter fault distinguishing system according to claim 1, is characterized in that: described keyboard input module is the QWERTY keyboard being connected with central processing unit by serial ports.
5. intelligent meter fault distinguishing system according to claim 1, it is characterized in that: described host computer communication module comprises serial data receiving function integrated circuit MAX232CPE (16) and interface integrated circuit LB184 (MAX485), realize serial communication function and drive and serial data receiving function.
6. intelligent meter fault distinguishing system according to claim 1, is characterized in that: described carrier Control handover module, can specifically adopt external hand control switch.
7. intelligent meter fault distinguishing system according to claim 1, is characterized in that: described power module is VAD DC power supply, adopts the supply power mode of the direct step-down rectifier of autotransformer, linear voltage stabilization.
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| CN201410031053.XA CN103780321A (en) | 2014-01-22 | 2014-01-22 | Intelligent meter fault identifying system |
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| CN201410031053.XA CN103780321A (en) | 2014-01-22 | 2014-01-22 | Intelligent meter fault identifying system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112242858A (en) * | 2020-11-05 | 2021-01-19 | 南方电网科学研究院有限责任公司 | Method and device for testing carrier communication module of electric energy meter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201994936U (en) * | 2011-04-01 | 2011-09-28 | 广东浩迪创新科技有限公司 | Multi-carrier communication conversion module for power line |
| CN102347786A (en) * | 2011-07-20 | 2012-02-08 | 湖北省电力公司电力试验研究院 | Power line narrowband carrier field test device applied to low voltage centralized meter reading system |
| CN203313179U (en) * | 2013-01-05 | 2013-11-27 | 湖州电力局 | Electrical energy collector failure detection device |
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- 2014-01-22 CN CN201410031053.XA patent/CN103780321A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201994936U (en) * | 2011-04-01 | 2011-09-28 | 广东浩迪创新科技有限公司 | Multi-carrier communication conversion module for power line |
| CN102347786A (en) * | 2011-07-20 | 2012-02-08 | 湖北省电力公司电力试验研究院 | Power line narrowband carrier field test device applied to low voltage centralized meter reading system |
| CN203313179U (en) * | 2013-01-05 | 2013-11-27 | 湖州电力局 | Electrical energy collector failure detection device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112242858A (en) * | 2020-11-05 | 2021-01-19 | 南方电网科学研究院有限责任公司 | Method and device for testing carrier communication module of electric energy meter |
| CN112242858B (en) * | 2020-11-05 | 2021-11-26 | 南方电网科学研究院有限责任公司 | Method and device for testing carrier communication module of electric energy meter |
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Address after: 300010 Tianjin city Hebei District Wujing Road No. 39 Applicant after: State Grid Corporation of China Applicant after: State Grid Tianjin Electric Power Company Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant before: State Grid Corporation of China Applicant before: State Grid Tianjin Electric Power Company |
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Application publication date: 20140507 |