CN201465381U - Electric power meter reading and charge accounting training device - Google Patents
Electric power meter reading and charge accounting training device Download PDFInfo
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- CN201465381U CN201465381U CN2009200902664U CN200920090266U CN201465381U CN 201465381 U CN201465381 U CN 201465381U CN 2009200902664 U CN2009200902664 U CN 2009200902664U CN 200920090266 U CN200920090266 U CN 200920090266U CN 201465381 U CN201465381 U CN 201465381U
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Abstract
The utility model provides an electric power meter reading and charge accounting training device, which comprises an upper computer, a communication switching control box, an electricity energy meter, a meter fault simulator, a current transformer, a voltage transformer and a programmable power source, wherein the upper computer is communicated with the communication switching control box which is communicated with the electricity energy meter, the meter fault simulator and the programmable power source, a voltage output end of the programmable power source is connected to a voltage input end of the meter fault simulator via the voltage transformer, a current output end of the programmable power source is connected to a current input end of the meter fault simulator via the current transformer, and the electricity energy meter is connected to a voltage output end and a current output end of the meter fault simulator. The device has scientific design, stable performance, safety, reliability and strong practicability.
Description
Technical field
The utility model relates to and a kind ofly is used for electric system to the experiment device for teaching or the training set of checking meter, adjusting, personnel such as charge carrying out skills training and technical appraisement, specifically, relates to a kind of electricity meter-reading check charging training device.
Background technology
Staff on power marketing system meter-reading check charging and the corresponding management post, directly in the face of the electric power terminal user, its large contingent; In order to improve its labour skills, must regularly carry out skills training, its training goal is to make the student reach relevant in the national vocational skills standard meter-reading check charging personnel of Utilities Electric Co. are being used hand-held meter reader and computer realization this locality, infrared, concentrate and the technical ability requirement of aspect defined such as remote meter reading check charging, make its on top of copy reading and the input method and long-range copy reading method of all kinds of electric energy meters, judge the metering of table meter rapidly whether normally, independent utilization electricity consumption marketing system is carried out the electricity charge and is checked, computational scheme, the technical ability requirement of aspect defineds such as platform district transformer and other loss.
In the training to the meter-reading check charging operating personnel, traditional training method is normally carried out literal explanation, language description, in conjunction with copying the on-the-spot operation in kind of nuclear receipts the student is trained again; This mode student can't carry out actual independent operation, and site environment has actual voltage, and there is unsafe factor in the trainee, so, just makes that actual result of training is undesirable.
In order to overcome the above problems, people are seeking a kind of desirable technical solution always.
Summary of the invention
The purpose of this utility model is at the deficiencies in the prior art, thereby a kind of design science, stable performance, safe and reliable, practical electricity meter-reading check charging training device are provided.
To achieve these goals, the utility model provides a kind of electricity meter-reading check charging training device, this device comprises host computer, communication conversion and control case, electric energy meter, table meter fault simulator, current transformer, voltage transformer (VT) and programmable power supply, wherein, described host computer is communicated by letter with described communication conversion and control case to realize the data-switching of single serial ports to many serial ports, described communication conversion and control case is communicated by letter with described electric energy meter so that host computer reads the electric energy meter data, realize centralized automatic meter-reading, described communication conversion and control case is communicated by letter with described table meter fault simulator so that PC control table meter fault simulator is simulated various faults, described communication conversion and control case is communicated by letter with described programmable power supply so that the different voltage of PC control programmable power supply output, current signal, the voltage output end of described programmable power supply connects the voltage input end of described table meter fault simulator by described voltage transformer (VT), the current output terminal of described programmable power supply connects the current input terminal of described table meter fault simulator by described current transformer, and described electric energy meter connects the voltage output end and the current output terminal of described table meter fault simulator.
Based on above-mentioned, described communication conversion and control case comprises Upper machine communication module, microprocessor, FPGA and organizes the RS485 communication module more, wherein, described Upper machine communication module is communicated by letter with described microprocessor, described microprocessor is communicated by letter with described FPGA by parallel bus, and described FPGA communicates by letter with many group RS485 communication modules.
Based on above-mentioned, described table meter fault simulator comprises communication module, main control module, FCM fault control module, relay matrix circuit and power module, wherein, described communication module and described main control module communication are to receive host computer information, described main control module connects described FCM fault control module with transmitting control commands, described FCM fault control module connects described relay matrix circuit and opens and closes to drive relay, and described power module connects communication module, main control module, FCM fault control module and relay matrix circuit respectively so that working power to be provided.
Based on above-mentioned, described FCM fault control module comprises six groups of photoelectric isolated chips and three relay chip for driving, wherein, control command outputs to the relay chip for driving after photoelectric isolated chip is isolated, and described relay chip for driving is used for driving the relay switching of relay matrix circuit.
The relative prior art of the utility model has substantive distinguishing features and progress, and specifically, this device has following advantage:
1, this device can be simulated the site of deployment environment of checking meter on same set of equipment, realize that manual typing is checked meter, infrared copy meter, centralized automatic meter-reading, remote meter reading, multi-functional multinomial teaching, training function such as check meter, and the meter reading data slitless connection imported in the marketing system database, also electric energy meter has been carried out the simulated failure setting simultaneously, made student's phenomenon of the failure of being in operation of table of discovery meter in time;
2, this device adopts programmable power supply, provides the aanalogvoltage current signal by it, and the student's that guaranteed on the one hand to undergo training safety guarantees the ammeter data steady change on the other hand, better embodies data validity;
3, this device can be simulated typical table meter fault, and each epi-position fault is separate, can be provided with respectively and correct, and the single three-phase electric energy meter table of energy separate analogue meter fault simply shows to count fault judgement for the person of checking meter;
4, this device can be simulated the different model electric energy meter that the typical case uses producer, table can arbitrarily be set count the data of correcting errors, and table meter fault can be had good luck by modification table meter;
5, this device possesses examination, check function, and the teacher can be provided with all kinds of clients' the situ metrology and the charge information of checking meter on this device.
Description of drawings
Fig. 1 is a principle schematic of the present utility model;
Fig. 2 is the schematic block circuit diagram of described communication conversion and control case;
Fig. 3 is the circuit theory diagrams of described communication conversion and control case;
Fig. 4 is the schematic block circuit diagram of described table meter fault simulator;
Fig. 5 is the circuit theory diagrams of described relay matrix circuit;
Fig. 6 is the circuit theory diagrams of described table meter fault simulator.
Embodiment
Below by embodiment, the technical solution of the utility model is described in further detail.
As shown in Figure 1, a kind of electricity meter-reading check charging training device, this device comprises host computer 1, communication conversion and control case 2, electric energy meter 3, table meter fault simulator 4, current transformer TA, voltage transformer (VT) TV and programmable power supply 5, wherein, described host computer 1 is communicated by letter with described communication conversion and control case 2 to realize the data-switching of single serial ports to many serial ports, described communication conversion and control case 2 is communicated by letter with described electric energy meter 3 so that host computer 1 reads electric energy meter 3 data, realize centralized automatic meter-reading, described communication conversion and control case 2 is communicated by letter with described table meter fault simulator 4 so that the various faults of host computer 1 control table meter fault simulator, 4 simulations, described communication conversion and control case 2 is exported different voltage with described programmable power supply 5 communications so that host computer 1 is controlled programmable power supply 5, current signal, the voltage output end of described programmable power supply 5 connects the voltage input end of described table meter fault simulator 4 by described voltage transformer (VT) TV, the current output terminal of described programmable power supply 5 connects the current input terminal of described table meter fault simulator 4 by described current transformer TA, and described electric energy meter 3 connects the voltage output end and the current output terminal of described table meter fault simulator 4.
This device workflow is: host computer 1 passes through serial communication interface, through communication conversion and control case 2, the startup of control programmable power supply 5, the electric current and voltage output of programmable power supply 5 is through table meter fault simulator 4, electric current and voltage is input to multifunctional electric energy meter 3, multifunctional electric energy meter 3 obtain electric current and voltage begin the metering have good luck; Simultaneously, host computer 1 through communication conversion and control case 2, produces 18 tunnel Communication Control RS485 by serial communication interface, and by the RS485 mode, control table meter fault simulator 4 is provided with the electric energy meter typical fault, learns searching and correcting of typical case's table meter fault for the student; Voltage gear transfer relay in the control table meter fault simulator 4 is realized the selection of table meter supply voltage; Host computer 1 through communication conversion and control case 2, produces 18 road meter reading communication RS485 also by serial communication interface in addition, and by the RS485 mode, host computer 1 is concentrated to copy and got multifunctional electric energy meter 3 data, realizes 485 centralized automatic meter-reading functions.
The concrete annexation of this device is:
Communication conversion and control case 2 is a kind of communication conversion and control equipment, adopts single-chip microcomputer to combine with FPGA, realizes the conversion of single serial ports to many serial ports, and the machine of realizing is controlled more; It is connected with multifunctional electric energy meter 3, table fault simulator 4, programmable power supply 5 and host computer 1 in the RS485 mode respectively; The rs 232 serial interface signal that it receives host computer 1 converts many rs 232 serial interface signals to and outputs to electric energy meter 3, table meter fault simulator 4 and programmable power supply 5 respectively.
Table meter fault simulator 4, be connected with communication conversion and control case 2 in the RS485 mode, receive the fault simulation order that host computer 1 sends, output to multifunctional electric energy meter 3 after the execution and measure demonstration, this is a kind of relay controller, adopt Single-chip Controlling relay mode to realize the switching of various control function, the conversion of the electric current and voltage line that is used to realize that electric energy meter table tail inserts, simulation produces various table meter wiring faults;
As shown in Figure 2, described communication conversion and control case 2 comprises Upper machine communication module 11, microprocessor 12, FPGA13 and organizes RS485 communication module 14 more, wherein, described Upper machine communication module 11 is communicated by letter with described microprocessor 12, described microprocessor 12 is communicated by letter with described FPGA13 by parallel bus, and described FPGA13 communicates by letter 14 with many group RS485 communication modules.
Described microprocessor is used to realize data converting function, it will become the parallel port by the data-switching that serial ports receives, and send to FPGA, and FPGA is through self gate circuit conversion, data-switching is sent to the com port of correspondence, and process is opposite with it to receive data; FPGA is used to receive the parallel port data of microprocessor, data is converted to serial data sends to corresponding com port; FPGA is used to receive the data of com port, and data are converted to the parallel port data, sends to microprocessor by the parallel port.
As shown in Figure 3, described Upper machine communication module 11, described many group RS485 communication modules 14 all are common RS485 communicating circuits, they comprise 485 conversion chips (U6, U8, U9), resistance R 23～R49, photoelectric isolated chip O1～O3 and photoelectric isolated chip O13～O18;
Described microprocessor 12 comprises microprocessor U2 and electric capacity, and (C10 is C12) with crystal oscillator Y11;
Described FPGA adopts fpga chip U10, is a kind of common chip.
Data and control command are by 485 conversion chip U6 of Upper machine communication module, isolate through photoelectricity, data are delivered to microprocessor U7 by serial communication interface, microprocessor U7 receives data or order, microprocessor U7 becomes parallel data with data or the command conversion that receives, send to the parallel port of fpga chip U10 by the parallel port of microprocessor U7, fpga chip U10 is through self gate circuit conversion, data or command conversion are arrived corresponding RS485 communication module, corresponding RS485 communication module is exported data by serial communication RS485 mode, and process is opposite with it to receive data;
Communication conversion and control case 2 is realized the function of two aspects: the one, and meter reading data sends: communication conversion and control case receives the data command frame that host computer sends by the serial ports of 485 conversion chip U6 of Upper machine communication module, microprocessor U7 sends to fpga chip U10 with the Frame that receives by the parallel port, the data that fpga chip U10 sends single-chip microcomputer by internal conversion, be forwarded to different serial communication interfaces, thereby realize the data forwarding of single serial ports to many serial ports; During Data Receiving, the serial ports of the fpga chip U10 in the communication conversion and control case 2 receives the data that each multifunctional electric energy meter 3 is uploaded, and sends the data to microprocessor U7 through the conversion communication, and microprocessor U7 gives host computer 1 by serial ports with data upload; The 2nd, the Communication Control data send: communication conversion and control case 2 receives the data command frame that host computer sends by the serial ports of 485 conversion chip U6 of Upper machine communication module, microprocessor U7 sends to fpga chip U10 with the Frame that receives by the parallel port, the data that fpga chip U10 sends microprocessor U7 by internal conversion, be forwarded to different serial communication interfaces, thereby realize the data forwarding of single serial ports, finish control function to many serial ports.
As Fig. 4, Fig. 5 and shown in Figure 6, described table meter fault simulator 4 comprises communication module 21, main control module 22, FCM fault control module 23, relay matrix circuit 24 and power module 25, wherein, described communication module 21 is communicated by letter with described main control module 22 to receive host computer information, described main control module 22 connects described FCM fault control module 23 with transmitting control commands, described FCM fault control module 23 connects described relay matrix circuit 24 and opens and closes to drive relay, and described power module 25 connects described communication module 21 respectively, described main control module 22, described FCM fault control module 23 and described relay matrix circuit 24 are to provide working power.
As shown in Figure 5 and Figure 6, described communication module 21 is common RS485 communication module, comprises 485 conversion chip U1, resistance R 2～R10 and photoelectric isolated chip O1～O3;
Described main control module 22 comprises microprocessor U2 and electric capacity, and (C8 is C9) with crystal oscillator Y7;
Described FCM fault control module 23 comprises six groups of photoelectric isolated chip (O4, O5, O6, O7, O8, O9), three relay chip for driving (U3, U4, U5) and auxiliary resistance R11～R22, wherein, control command is through three groups of photoelectric isolated chips (O4, O5, O6) output to relay chip for driving U3 after the isolation, (O7, O8 O9) output to relay chip for driving U5 after the isolation to control command through three groups of photoelectric isolated chips, described relay chip for driving U3 is connected with relay chip for driving U4, and described relay chip for driving is used for driving the relay switching of relay matrix circuit 24.
Described power module 25 comprises resistance R 1, capacitor C 1～C6 and pilot lamp LED1.
As shown in Figure 5, described relay matrix circuit 24 comprises 21 relay L1～L21 and 21 diode D1～12, diode D16～D24, wherein, each relay diode in parallel, diode cathode connects power supply, relay one termination power, another relay termination chip for driving of relay.
Described table meter fault simulator 4 is by described communication conversion and control case 2, receive the fail-safe control order that host computer 1 sends with 485 communication modes, and main control module 22 issue an orders by described table meter fault simulator 4, make the actuating of relay in the FCM fault control module 23 pilot relay matrix circuits 24, wherein, can be achieved as follows the fault setting according to the difference that articulates electric energy meter:
1, simulated failure under the three-phase and four-line: the A phase voltage opens circuit; The B phase voltage opens circuit; The C phase voltage opens circuit; A phase voltage polarity is anti-; B phase voltage polarity is anti-; C phase voltage polarity is anti-; The short circuit of A phase current; The short circuit of B phase current; The short circuit of C phase current; A phase current polarity is anti-; B phase current polarity is anti-; C phase current polarity is anti-; The cutout of A phase current; The cutout of B phase current; The cutout of C phase current.
2, simulated failure under the phase three-wire three: the A phase voltage opens circuit; The B phase voltage opens circuit; The C phase voltage opens circuit; A phase voltage polarity is anti-; B phase voltage polarity is anti-; C phase voltage polarity is anti-; The short circuit of A phase current; The short circuit of C phase current; A phase current polarity is anti-; C phase current polarity is anti-; The cutout of A phase current; The cutout of C phase current.
3, single-phase simulated failure down: voltage opens circuit; Polarity of voltage is anti-; Short circuit current; Current polarity is anti-; The electric current cutout.
Should be noted that at last: above embodiment only is not intended to limit in order to the explanation the technical solution of the utility model; Although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or the part technical characterictic is equal to replacement embodiment of the present utility model; And not breaking away from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope that the utility model asks for protection.
Claims (4)
1. electricity meter-reading check charging training device, it is characterized in that: this device comprises host computer, communication conversion and control case, electric energy meter, table meter fault simulator, current transformer, voltage transformer (VT) and programmable power supply, wherein, described host computer is communicated by letter with described communication conversion and control case, described communication conversion and control case is communicated by letter with described electric energy meter, described communication conversion and control case is communicated by letter with described table meter fault simulator, described communication conversion and control case is communicated by letter with described programmable power supply, the voltage output end of described programmable power supply connects the voltage input end of described table meter fault simulator by described voltage transformer (VT), the current output terminal of described programmable power supply connects the current input terminal of described table meter fault simulator by described current transformer, and described electric energy meter connects the voltage output end and the current output terminal of described table meter fault simulator.
2. electricity meter-reading check charging training device according to claim 1, it is characterized in that: described communication conversion and control case comprises Upper machine communication module, microprocessor, FPGA and organizes the RS485 communication module more, wherein, described Upper machine communication module is communicated by letter with described microprocessor, described microprocessor is communicated by letter with described FPGA by parallel bus, and described FPGA communicates by letter with many group RS485 communication modules.
3. electricity meter-reading check charging training device according to claim 1, it is characterized in that: described table meter fault simulator comprises communication module, main control module, FCM fault control module, relay matrix circuit and power module, wherein, described communication module and described main control module communication, described main control module connects described FCM fault control module, described FCM fault control module connects described relay matrix circuit, and described power module connects communication module, main control module, FCM fault control module and relay matrix circuit respectively.
4. electricity meter-reading check charging training device according to claim 3, it is characterized in that: described FCM fault control module comprises six groups of photoelectric isolated chips and three relay chip for driving, wherein, control command outputs to the relay chip for driving after photoelectric isolated chip is isolated, described relay chip for driving is used for driving the relay switching of relay matrix circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200902664U CN201465381U (en) | 2009-05-15 | 2009-05-15 | Electric power meter reading and charge accounting training device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009200902664U CN201465381U (en) | 2009-05-15 | 2009-05-15 | Electric power meter reading and charge accounting training device |
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| CN201465381U true CN201465381U (en) | 2010-05-12 |
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| CN2009200902664U Expired - Fee Related CN201465381U (en) | 2009-05-15 | 2009-05-15 | Electric power meter reading and charge accounting training device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103064054A (en) * | 2012-12-19 | 2013-04-24 | 云南电力试验研究院（集团）有限公司电力研究院 | Electric energy measure device simulation system and wiring matrix control method thereof |
| CN103345859A (en) * | 2013-07-15 | 2013-10-09 | 国家电网公司 | Intelligent practical training device based on transformer fault simulation |
| CN103390362A (en) * | 2013-07-15 | 2013-11-13 | 国家电网公司 | Transformer intelligent simulation system |
| CN104091502A (en) * | 2014-07-09 | 2014-10-08 | 国家电网公司 | Typical low-tension centralized meter reading and installation training device based on carrier technology |
| CN104571038A (en) * | 2014-12-22 | 2015-04-29 | 德州隆贵电力设备有限公司 | Intelligent control and management service system for power equipment |
| CN104318832B (en) * | 2012-10-30 | 2016-11-30 | 江苏省电力公司常州供电公司 | A kind of construction method of power network schedule automation experience system |
| CN104318834B (en) * | 2012-10-30 | 2016-11-30 | 江苏省电力公司常州供电公司 | A kind of method of work of power network schedule automation experience system |
| CN108847100A (en) * | 2018-06-13 | 2018-11-20 | 郑州万特电气股份有限公司 | Four tables acquire fault simulation training apparatus |
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2009
- 2009-05-15 CN CN2009200902664U patent/CN201465381U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104318832B (en) * | 2012-10-30 | 2016-11-30 | 江苏省电力公司常州供电公司 | A kind of construction method of power network schedule automation experience system |
| CN104318834B (en) * | 2012-10-30 | 2016-11-30 | 江苏省电力公司常州供电公司 | A kind of method of work of power network schedule automation experience system |
| CN103064054A (en) * | 2012-12-19 | 2013-04-24 | 云南电力试验研究院（集团）有限公司电力研究院 | Electric energy measure device simulation system and wiring matrix control method thereof |
| CN103064054B (en) * | 2012-12-19 | 2015-09-30 | 云南电力试验研究院（集团）有限公司电力研究院 | The matrix majorization method of electric power meter analogue system and wiring thereof |
| CN103345859A (en) * | 2013-07-15 | 2013-10-09 | 国家电网公司 | Intelligent practical training device based on transformer fault simulation |
| CN103390362A (en) * | 2013-07-15 | 2013-11-13 | 国家电网公司 | Transformer intelligent simulation system |
| CN103345859B (en) * | 2013-07-15 | 2014-12-24 | 国家电网公司 | Intelligent practical training device based on transformer fault simulation |
| CN104091502A (en) * | 2014-07-09 | 2014-10-08 | 国家电网公司 | Typical low-tension centralized meter reading and installation training device based on carrier technology |
| CN104571038A (en) * | 2014-12-22 | 2015-04-29 | 德州隆贵电力设备有限公司 | Intelligent control and management service system for power equipment |
| CN108847100A (en) * | 2018-06-13 | 2018-11-20 | 郑州万特电气股份有限公司 | Four tables acquire fault simulation training apparatus |
| CN108847100B (en) * | 2018-06-13 | 2023-09-26 | 郑州万特电气股份有限公司 | Four-meter acquisition fault simulation training equipment |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20130515 |