CN204374338U - A kind of electric motorcar charging station power quality data Acquisition Circuit - Google Patents
A kind of electric motorcar charging station power quality data Acquisition Circuit Download PDFInfo
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- CN204374338U CN204374338U CN201520054351.0U CN201520054351U CN204374338U CN 204374338 U CN204374338 U CN 204374338U CN 201520054351 U CN201520054351 U CN 201520054351U CN 204374338 U CN204374338 U CN 204374338U
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Abstract
The utility model discloses a kind of electric motorcar charging station power quality data Acquisition Circuit, the clock circuit comprising micro controller module and connect with described micro controller module, crystal oscillating circuit, reset circuit, RS232 interface circuit and data storage cell, the input end of described micro controller module is connected to electrical parameter Acquisition Circuit and button operation circuit, the input end of described electrical parameter Acquisition Circuit is connected to the voltage acquisition input circuit for gathering each phase voltage data of civil power, for gathering the current acquisition input circuit of each phase current data of civil power and zero line reference current data and not being subject to the digital input circuit of external input device over-voltage and over-current damage for the protection of electrical parameter Acquisition Circuit, the output terminal of described micro controller module is connected to liquid crystal display circuit, the utility model is novel in design, can facilitate, fast, the multiple electrical energy parameter of effective detection of grid, and cause the damage of Power Quality Detection instrument to protect to peripheral hardware over-voltage and over-current, practical.
Description
Technical field
The utility model belongs to Power Quality Detection technical field, is specifically related to a kind of electric motorcar charging station power quality data Acquisition Circuit.
Background technology
At present, along with the raising day by day of world's regenerative resource expanding economy and people's environmental consciousness, new-energy automobile constantly highlights in the superiority of energy-saving index and environmental-protecting performance, and market demand also significantly increases.Electric automobiles is being researched and developed energetically and is being promoted, and electric automobile charging station is as the infrastructure supporting with electric motor car, and under its charging technique, charging quality and the Harmfulness Caused by Harmonics caused electrical network and power factor (PF), degradation problem is badly in need of solving.Nowadays, Power Electronic Technique and a large amount of nonlinear loads are applied in electric power system, cause power network current and voltage waveform distorts, the quality of power supply of electric motorcar charging station grid side is due to the regular charging machine transplanting of rice or pull out operation, cause percent harmonic distortion, the containing ratio of each harmonic, voltage deviation, frequency departure, tri-phase unbalance factor, reactive power, the data variation such as active power and power factor (PF), electric power accident is caused to charging equipment, some high-end power quality analyzer precision are high both at home and abroad at present, operation is reliable, but it is wide in range all to there is Testing index, the feature such as expensive, and technical standard is adopted international standards more, the demand of the middle-size and small-size electric motorcar charging station power quality analysis monitoring of China is not too met from specificity and practicality, complicated operation in use, heavier being not easy to is carried, therefore, nowadays a kind of structure is lacked simple, reasonable in design, install and lay convenient and use simple to operate, can facilitate, fast, the multiple electrical energy parameter of effective detection of grid, and cause Power Quality Detection instrument to damage the electric motorcar charging station power quality data Acquisition Circuit protected to peripheral hardware over-voltage and over-current, the data real-time storage of collection can be recorded, for subsequent reference analysis, and effectively there is complicated operation in solution Power Quality Detection instrument, expensive, detect the first-class problem of data sheet.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art; a kind of electric motorcar charging station power quality data Acquisition Circuit is provided; it is rationally novel in design; install and lay convenient and use simple to operate; can easily and fast, effective detection of grid multiple electric motor car rechargeable electrical energy parameter; and cause the damage of Power Quality Detection instrument to protect to peripheral hardware over-voltage and over-current, and practical, be convenient to promote the use of.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of electric motorcar charging station power quality data Acquisition Circuit, is characterized in that: the clock circuit comprising micro controller module and connect with described micro controller module, crystal oscillating circuit, reset circuit, RS232 interface circuit and data storage cell, the input end of described micro controller module is connected to button operation circuit and for gathering each electric energy electrical parameter in electric motor car charging process and being converted into the electrical parameter Acquisition Circuit of the accessible metering signal of micro controller module, the input end of described electrical parameter Acquisition Circuit is connected to the voltage acquisition input circuit for each for the civil power of collection phase voltage data being carried out filtering and noise reduction, for each for the civil power of collection phase current data and zero line reference current data being converted to the current acquisition input circuit of the accessible voltage data of electrical parameter Acquisition Circuit and not being subject to the digital input circuit of external input device over-voltage and over-current damage for the protection of electrical parameter Acquisition Circuit, the output terminal of described micro controller module is connected to the liquid crystal display circuit for showing every electrical energy parameter data in electric motor car charging in real time, described micro controller module is AtmelSAM3X8E ARM Cortex-M3 processor, described electrical parameter Acquisition Circuit comprises chip ATT7022C, 1st pin of described chip ATT7022C exports point three tunnels, one tunnel connects with the 7th pin of AtmelSAM3X8E ARM Cortex-M3 processor, another road connects with one end of electric capacity C1, 3rd tunnel connects with one end of resistance R1, the other end ground connection of electric capacity C1, the other end of resistance R1 connects with 5V power output end, 2nd pin of described chip ATT7022C exports a point two-way, one tunnel connects with the 43rd pin of AtmelSAM3X8E ARM Cortex-M3 processor, another road connects with one end of electric capacity C2, the other end ground connection of electric capacity C2, 35th pin of described chip ATT7022C, 36th pin, 37th pin and the 38th pin respectively with the 20th pin of AtmelSAM3X8E ARM Cortex-M3 processor, 21st pin, 23rd pin and the 22nd pin connect.
Above-mentioned a kind of electric motorcar charging station power quality data Acquisition Circuit, it is characterized in that: described clock circuit comprises chip DS1302, 1st pin of described chip DS1302 exports a point two-way, one tunnel connects with 5V power output end, another road connects with one end of electric capacity C40, the other end ground connection of electric capacity C40, 2nd pin of described chip DS1302 is connected with the 3rd pin of chip DS1302 by crystal oscillator Y2, the 4th pin ground connection of described chip DS1302, 5th pin of described chip DS1302, 6th pin and the 7th pin respectively with the 7th pin of AtmelSAM3X8E ARM Cortex-M3 processor, 11st pin and the 21st pin connect, 8th pin of described chip DS1302 connects with 5V power output end.
Above-mentioned a kind of electric motorcar charging station power quality data Acquisition Circuit, it is characterized in that: described voltage acquisition input circuit comprises the voltage input interface P1 for connecting multiple voltage transformer (VT), the VA1 pin of described voltage input interface P1 is connected with the 13rd pin of chip ATT7022C by resistance R4, the link of the 13rd pin of described resistance R4 and chip ATT7022C exports a point two-way, one tunnel connects with one end of resistance R10, another road connects with one end of electric capacity C16, the other end ground connection of electric capacity C16, the VA2 pin of described voltage input interface P1 is connected with the 14th pin of chip ATT7022C by resistance R5, the link of the 14th pin of described resistance R5 and chip ATT7022C exports a point two-way, one tunnel connects with one end of resistance R11, another road connects with one end of electric capacity C17, the other end ground connection of electric capacity C17, the VB1 pin of described voltage input interface P1 is connected with the 16th pin of chip ATT7022C by resistance R6, the link of the 16th pin of described resistance R6 and chip ATT7022C exports a point two-way, one tunnel connects with one end of resistance R12, another road connects with one end of electric capacity C18, the other end ground connection of electric capacity C18, the VB2 pin of described voltage input interface P1 is connected with the 17th pin of chip ATT7022C by resistance R7, the link of the 17th pin of described resistance R7 and chip ATT7022C exports a point two-way, one tunnel connects with one end of resistance R13, another road connects with one end of electric capacity C19, the other end ground connection of electric capacity C19, the VC1 pin of described voltage input interface P1 is connected with the 19th pin of chip ATT7022C by resistance R8, the link of the 19th pin of described resistance R8 and chip ATT7022C exports a point two-way, one tunnel connects with one end of resistance R14, another road connects with one end of electric capacity C20, the other end ground connection of electric capacity C20, the VC2 pin of described voltage input interface P1 is connected with the 20th pin of chip ATT7022C by resistance R9, the link of the 20th pin of described resistance R9 and chip ATT7022C exports a point two-way, one tunnel connects with one end of resistance R15, another road connects with one end of electric capacity C21, the other end ground connection of electric capacity C21, the other end of resistance R10, the other end of resistance R11, the other end of resistance R12, the other end of resistance R13, the other end of resistance R14 and the other end of resistance R15 all connect with the 11st pin of chip ATT7022C.
Above-mentioned a kind of electric motorcar charging station power quality data Acquisition Circuit, it is characterized in that: described current acquisition input circuit comprises the electric current input interface P2 for connecting multiple current transformer, the IA1 pin of described electric current input interface P2 is connected with the 3rd pin of chip ATT7022C by resistance R16, 3rd pin of described resistance R16 and chip ATT7022C exports a point two-way, one tunnel connects with one end of resistance R28, another road connects with one end of electric capacity C22, the other end ground connection of electric capacity C22, the IA1 pin of described electric current input interface P2 is connected with the IA2 pin of electric current input interface P2 by resistance R24, the IA2 pin of described electric current input interface P2 is connected with the 4th pin of chip ATT7022C by resistance R17, 4th pin of described resistance R17 and chip ATT7022C exports a point two-way, one tunnel connects with one end of resistance R29, another road connects with one end of electric capacity C23, the other end ground connection of electric capacity C23, the IB1 pin of described electric current input interface P2 is connected with the 6th pin of chip ATT7022C by resistance R18, 6th pin of described resistance R18 and chip ATT7022C exports a point two-way, one tunnel connects with one end of resistance R30, another road connects with one end of electric capacity C24, the other end ground connection of electric capacity C24, the IB1 pin of described electric current input interface P2 is connected with the IB2 pin of electric current input interface P2 by resistance R25, the IB2 pin of described electric current input interface P2 is connected with the 7th pin of chip ATT7022C by resistance R19, 7th pin of described resistance R19 and chip ATT7022C exports a point two-way, one tunnel connects with one end of resistance R31, another road connects with one end of electric capacity C25, the other end ground connection of electric capacity C25, the IC1 pin of described electric current input interface P2 is connected with the 9th pin of chip ATT7022C by resistance R20, 9th pin of described resistance R20 and chip ATT7022C exports a point two-way, one tunnel connects with one end of resistance R32, another road connects with one end of electric capacity C26, the other end ground connection of electric capacity C26, the IC1 pin of described electric current input interface P2 is connected with the IC2 pin of electric current input interface P2 by resistance R26, the IC2 pin of described electric current input interface P2 is connected with the 10th pin of chip ATT7022C by resistance R21, 10th pin of described resistance R21 and chip ATT7022C exports a point two-way, one tunnel connects with one end of resistance R33, another road connects with one end of electric capacity C27, the other end ground connection of electric capacity C27, the IN1 pin of described electric current input interface P2 is connected with the 21st pin of chip ATT7022C by resistance R22, 21st pin of described resistance R22 and chip ATT7022C exports a point two-way, one tunnel connects with one end of resistance R34, another road connects with one end of electric capacity C28, the other end ground connection of electric capacity C28, the IN1 pin of described electric current input interface P2 is connected with the IN2 pin of electric current input interface P2 by resistance R27, the IN2 pin of described electric current input interface P2 is connected with the 22nd pin of chip ATT7022C by resistance R23, 22nd pin of described resistance R23 and chip ATT7022C exports a point two-way, one tunnel connects with one end of resistance R35, another road connects with one end of electric capacity C29, the other end ground connection of electric capacity C29, the other end of resistance R28, the other end of resistance R29, the other end of resistance R30, the other end of resistance R31, the other end of resistance R32, the other end of resistance R33, the other end of resistance R34 and the other end of resistance R35 all connect with the 11st pin of chip ATT7022C.
Above-mentioned a kind of electric motorcar charging station power quality data Acquisition Circuit, it is characterized in that: described digital input circuit comprises the chip U1 of model NEC2501, the chip U2 of model NEC2501, the chip U3 of model NEC2501 and the chip U4 of model NEC2501, 1st pin of described chip U1 is connected with the 27th pin of chip ATT7022C by resistance R36, described resistance R36 connects with one end of electric capacity C30 with the link of the 27th pin of chip ATT7022C, the other end ground connection of electric capacity C30, 2nd pin of described chip U1 is by light emitting diode D2 ground connection, 3rd pin of described chip U1 and the input end of the 4th pin are peripheral hardware input interface P3, 1st pin of described chip U2 is connected with the 28th pin of chip ATT7022C by resistance R37, described resistance R37 connects with one end of electric capacity C31 with the link of the 28th pin of chip ATT7022C, the other end ground connection of electric capacity C31, 2nd pin of described chip U2 is by light emitting diode D3 ground connection, 3rd pin of described chip U2 and the input end of the 4th pin are peripheral hardware input interface P4, 1st pin of described chip U3 is connected with the 30th pin of chip ATT7022C by resistance R38, described resistance R38 connects with one end of electric capacity C32 with the link of the 30th pin of chip ATT7022C, the other end ground connection of electric capacity C32, 2nd pin of described chip U3 is by light emitting diode D4 ground connection, 3rd pin of described chip U3 and the input end of the 4th pin are peripheral hardware input interface P5, 1st pin of described chip U4 is connected with the 31st pin of chip ATT7022C by resistance R39, described resistance R39 connects with one end of electric capacity C33 with the link of the 31st pin of chip ATT7022C, the other end ground connection of electric capacity C33, 2nd pin of described chip U4 is by light emitting diode D5 ground connection, 3rd pin of described chip U4 and the input end of the 4th pin are peripheral hardware input interface P6.
Above-mentioned a kind of electric motorcar charging station power quality data Acquisition Circuit, it is characterized in that: described liquid crystal display circuit is JXD640480A-T LCD liquid crystal display screen, the VDD pin of described JXD640480A-T LCD liquid crystal display screen connects with 3.3V power output end, the VSS pin ground connection of described JXD640480A-T LCD liquid crystal display screen, the DB0 pin of described JXD640480A-T LCD liquid crystal display screen, DB1 pin, DB2 pin, DB3 pin, DB4 pin, DB5 pin, DB6 pin, DB7 pin, DB8 pin, DB9 pin, DB10 pin, DB11 pin, DB12 pin, DB13 pin, DB14 pin and DB15 pin respectively with the 26th pin of AtmelSAM3X8E ARM Cortex-M3 processor, 27th pin, 28th pin, 55th pin, 56th pin, 57th pin, 58th pin, 59th pin, 61st pin, 62nd pin, 29th pin, 30th pin, 33rd pin, 34th pin, 35th pin and the 36th pin connect, the RS pin of described JXD640480A-T LCD liquid crystal display screen, / WR pin, / RD pin, / CS pin and/RST pin respectively with the 39th pin of AtmelSAM3X8E ARM Cortex-M3 processor, 38th pin, 37th pin, 40th pin and the 42nd pin connect.
The utility model compared with prior art has the following advantages:
1, the utility model voltage acquisition input circuit is by arranging three-phase voltage A phase, B phase and C phase voltage Data Input Interface, connect multiple voltage transformer (VT), electric motor car charging voltage data is gathered by adopting outside multiple voltage transformer (VT), electrical parameter Acquisition Circuit is sent into after filtering, simultaneously, current acquisition input circuit is by arranging three-phase current A phase, B phase and C phase current Data Input Interface and neutral line current Data Input Interface, connect multiple current transformer, electric motor car charging current data is gathered by adopting outside multiple current transformer, electrical parameter Acquisition Circuit is sent into through overcurrent pressure conversion post filtering, data acquisition variation, precision is high.
2, the utility model is by arranging liquid crystal display circuit, data storage cell and clock circuit, corresponding time data is recorded while the electric current and voltage data of storage of collected, and store data, can subsequent analysis reference be supplied, also can pass through liquid crystal display data in real time, easy to operate, Information Monitoring data precision is high, circuit is simple, and accuracy is high, good stability.
3, the utility model arranges collection and the protection that digital input circuit realizes digital quantity; digital input circuit is the light-coupled isolation chip voltage conversion of NEC2501 by model; external input device over-voltage and over-current is effectively avoided to damage microcontroller; strong interference immunity; and reserved multiple peripheral hardware input port; image data variation, perfect in shape and function.
4, the microcontroller architecture that adopts of the utility model is simple, reasonable in design and result of use is good, and adopt the data that the process of AtmelSAM3X8E ARM Cortex-M3 processor gathers, system cost is low, low in energy consumption, and process fast operation, computational accuracy is high.
5, the utility model is rationally novel in design, and perfect in shape and function, volume is little, attractive in appearance, and input cost is lower, simple to operate, practical, is convenient to promote the use of.
In sum; the utility model is rationally novel in design; install and lay convenient and use simple to operate; can easily and fast, effective detection of grid multiple electric motor car rechargeable electrical energy parameter; and cause the damage of power quality data Acquisition Circuit to protect to peripheral hardware over-voltage and over-current; practical, be convenient to promote the use of.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is schematic block circuit diagram of the present utility model.
Fig. 2 is the circuit theory diagrams of the utility model micro controller module.
Fig. 3 is the circuit theory diagrams of the utility model electrical parameter Acquisition Circuit.
Fig. 4 is the circuit theory diagrams of the utility model digital input circuit.
Fig. 5 is the circuit theory diagrams of the utility model voltage acquisition input circuit.
Fig. 6 is the circuit theory diagrams of the utility model liquid crystal display circuit.
Fig. 7 is the circuit theory diagrams of the utility model current acquisition input circuit.
Fig. 8 is the circuit theory diagrams of the utility model clock circuit.
Description of reference numerals:
1-micro controller module; 2-electrical parameter Acquisition Circuit; 3-voltage acquisition input circuit;
4-current acquisition input circuit; 5-digital input circuit; 6-clock circuit;
7-crystal oscillating circuit; 8-reset circuit; 9-button operation circuit;
10-RS232 interface circuit; 11-data storage cell; 12-liquid crystal display circuit.
Embodiment
As shown in Figure 1, Figure 2 and Figure 3, the utility model clock circuit 6, crystal oscillating circuit 7, reset circuit 8, RS232 interface circuit 10 and data storage cell 11 of comprising micro controller module 1 and connecting with described micro controller module 1, the input end of described micro controller module 1 is connected to button operation circuit 9 and for gathering each electric energy electrical parameter in electric motor car charging process and being converted into the electrical parameter Acquisition Circuit 2 of the accessible metering signal of micro controller module 1, the input end of described electrical parameter Acquisition Circuit 2 is connected to the voltage acquisition input circuit 3 for each for the civil power of collection phase voltage data being carried out filtering and noise reduction, for each for the civil power of collection phase current data and zero line reference current data being converted to the current acquisition input circuit 4 of the accessible voltage data of electrical parameter Acquisition Circuit 2 and not being subject to the digital input circuit 5 of external input device over-voltage and over-current damage for the protection of electrical parameter Acquisition Circuit 2, the output terminal of described micro controller module 1 is connected to the liquid crystal display circuit 12 for showing every electrical energy parameter data in electric motor car charging in real time, described micro controller module 1 is AtmelSAM3X8E ARM Cortex-M3 processor, described electrical parameter Acquisition Circuit 2 comprises chip ATT7022C, 1st pin of described chip ATT7022C exports point three tunnels, one tunnel connects with the 7th pin of AtmelSAM3X8E ARM Cortex-M3 processor, another road connects with one end of electric capacity C1, 3rd tunnel connects with one end of resistance R1, the other end ground connection of electric capacity C1, the other end of resistance R1 connects with 5V power output end, 2nd pin of described chip ATT7022C exports a point two-way, one tunnel connects with the 43rd pin of AtmelSAM3X8E ARM Cortex-M3 processor, another road connects with one end of electric capacity C2, the other end ground connection of electric capacity C2, 35th pin of described chip ATT7022C, 36th pin, 37th pin and the 38th pin respectively with the 20th pin of AtmelSAM3X8E ARM Cortex-M3 processor, 21st pin, 23rd pin and the 22nd pin connect.
As shown in Figure 8, in the present embodiment, described clock circuit 6 comprises chip DS1302, 1st pin of described chip DS1302 exports a point two-way, one tunnel connects with 5V power output end, another road connects with one end of electric capacity C40, the other end ground connection of electric capacity C40, 2nd pin of described chip DS1302 is connected with the 3rd pin of chip DS1302 by crystal oscillator Y2, the 4th pin ground connection of described chip DS1302, 5th pin of described chip DS1302, 6th pin and the 7th pin respectively with the 7th pin of AtmelSAM3X8E ARM Cortex-M3 processor, 11st pin and the 21st pin connect, 8th pin of described chip DS1302 connects with 5V power output end.
As shown in Figure 5, in the present embodiment, described voltage acquisition input circuit 3 comprises the voltage input interface P1 for connecting multiple voltage transformer (VT), the VA1 pin of described voltage input interface P1 is connected with the 13rd pin of chip ATT7022C by resistance R4, the link of the 13rd pin of described resistance R4 and chip ATT7022C exports a point two-way, one tunnel connects with one end of resistance R10, another road connects with one end of electric capacity C16, the other end ground connection of electric capacity C16, the VA2 pin of described voltage input interface P1 is connected with the 14th pin of chip ATT7022C by resistance R5, the link of the 14th pin of described resistance R5 and chip ATT7022C exports a point two-way, one tunnel connects with one end of resistance R11, another road connects with one end of electric capacity C17, the other end ground connection of electric capacity C17, the VB1 pin of described voltage input interface P1 is connected with the 16th pin of chip ATT7022C by resistance R6, the link of the 16th pin of described resistance R6 and chip ATT7022C exports a point two-way, one tunnel connects with one end of resistance R12, another road connects with one end of electric capacity C18, the other end ground connection of electric capacity C18, the VB2 pin of described voltage input interface P1 is connected with the 17th pin of chip ATT7022C by resistance R7, the link of the 17th pin of described resistance R7 and chip ATT7022C exports a point two-way, one tunnel connects with one end of resistance R13, another road connects with one end of electric capacity C19, the other end ground connection of electric capacity C19, the VC1 pin of described voltage input interface P1 is connected with the 19th pin of chip ATT7022C by resistance R8, the link of the 19th pin of described resistance R8 and chip ATT7022C exports a point two-way, one tunnel connects with one end of resistance R14, another road connects with one end of electric capacity C20, the other end ground connection of electric capacity C20, the VC2 pin of described voltage input interface P1 is connected with the 20th pin of chip ATT7022C by resistance R9, the link of the 20th pin of described resistance R9 and chip ATT7022C exports a point two-way, one tunnel connects with one end of resistance R15, another road connects with one end of electric capacity C21, the other end ground connection of electric capacity C21, the other end of resistance R10, the other end of resistance R11, the other end of resistance R12, the other end of resistance R13, the other end of resistance R14 and the other end of resistance R15 all connect with the 11st pin of chip ATT7022C.
As shown in Figure 7, in the present embodiment, described current acquisition input circuit 4 comprises the electric current input interface P2 for connecting multiple current transformer, the IA1 pin of described electric current input interface P2 is connected with the 3rd pin of chip ATT7022C by resistance R16, 3rd pin of described resistance R16 and chip ATT7022C exports a point two-way, one tunnel connects with one end of resistance R28, another road connects with one end of electric capacity C22, the other end ground connection of electric capacity C22, the IA1 pin of described electric current input interface P2 is connected with the IA2 pin of electric current input interface P2 by resistance R24, the IA2 pin of described electric current input interface P2 is connected with the 4th pin of chip ATT7022C by resistance R17, 4th pin of described resistance R17 and chip ATT7022C exports a point two-way, one tunnel connects with one end of resistance R29, another road connects with one end of electric capacity C23, the other end ground connection of electric capacity C23, the IB1 pin of described electric current input interface P2 is connected with the 6th pin of chip ATT7022C by resistance R18, 6th pin of described resistance R18 and chip ATT7022C exports a point two-way, one tunnel connects with one end of resistance R30, another road connects with one end of electric capacity C24, the other end ground connection of electric capacity C24, the IB1 pin of described electric current input interface P2 is connected with the IB2 pin of electric current input interface P2 by resistance R25, the IB2 pin of described electric current input interface P2 is connected with the 7th pin of chip ATT7022C by resistance R19, 7th pin of described resistance R19 and chip ATT7022C exports a point two-way, one tunnel connects with one end of resistance R31, another road connects with one end of electric capacity C25, the other end ground connection of electric capacity C25, the IC1 pin of described electric current input interface P2 is connected with the 9th pin of chip ATT7022C by resistance R20, 9th pin of described resistance R20 and chip ATT7022C exports a point two-way, one tunnel connects with one end of resistance R32, another road connects with one end of electric capacity C26, the other end ground connection of electric capacity C26, the IC1 pin of described electric current input interface P2 is connected with the IC2 pin of electric current input interface P2 by resistance R26, the IC2 pin of described electric current input interface P2 is connected with the 10th pin of chip ATT7022C by resistance R21, 10th pin of described resistance R21 and chip ATT7022C exports a point two-way, one tunnel connects with one end of resistance R33, another road connects with one end of electric capacity C27, the other end ground connection of electric capacity C27, the IN1 pin of described electric current input interface P2 is connected with the 21st pin of chip ATT7022C by resistance R22, 21st pin of described resistance R22 and chip ATT7022C exports a point two-way, one tunnel connects with one end of resistance R34, another road connects with one end of electric capacity C28, the other end ground connection of electric capacity C28, the IN1 pin of described electric current input interface P2 is connected with the IN2 pin of electric current input interface P2 by resistance R27, the IN2 pin of described electric current input interface P2 is connected with the 22nd pin of chip ATT7022C by resistance R23, 22nd pin of described resistance R23 and chip ATT7022C exports a point two-way, one tunnel connects with one end of resistance R35, another road connects with one end of electric capacity C29, the other end ground connection of electric capacity C29, the other end of resistance R28, the other end of resistance R29, the other end of resistance R30, the other end of resistance R31, the other end of resistance R32, the other end of resistance R33, the other end of resistance R34 and the other end of resistance R35 all connect with the 11st pin of chip ATT7022C.
As shown in Figure 4, in the present embodiment, described digital input circuit 5 comprises the chip U1 of model NEC2501, the chip U2 of model NEC2501, the chip U3 of model NEC2501 and the chip U4 of model NEC2501, 1st pin of described chip U1 is connected with the 27th pin of chip ATT7022C by resistance R36, described resistance R36 connects with one end of electric capacity C30 with the link of the 27th pin of chip ATT7022C, the other end ground connection of electric capacity C30, 2nd pin of described chip U1 is by light emitting diode D2 ground connection, 3rd pin of described chip U1 and the input end of the 4th pin are peripheral hardware input interface P3, 1st pin of described chip U2 is connected with the 28th pin of chip ATT7022C by resistance R37, described resistance R37 connects with one end of electric capacity C31 with the link of the 28th pin of chip ATT7022C, the other end ground connection of electric capacity C31, 2nd pin of described chip U2 is by light emitting diode D3 ground connection, 3rd pin of described chip U2 and the input end of the 4th pin are peripheral hardware input interface P4, 1st pin of described chip U3 is connected with the 30th pin of chip ATT7022C by resistance R38, described resistance R38 connects with one end of electric capacity C32 with the link of the 30th pin of chip ATT7022C, the other end ground connection of electric capacity C32, 2nd pin of described chip U3 is by light emitting diode D4 ground connection, 3rd pin of described chip U3 and the input end of the 4th pin are peripheral hardware input interface P5, 1st pin of described chip U4 is connected with the 31st pin of chip ATT7022C by resistance R39, described resistance R39 connects with one end of electric capacity C33 with the link of the 31st pin of chip ATT7022C, the other end ground connection of electric capacity C33, 2nd pin of described chip U4 is by light emitting diode D5 ground connection, 3rd pin of described chip U4 and the input end of the 4th pin are peripheral hardware input interface P6.
As shown in Figure 6, in the present embodiment, described liquid crystal display circuit 12 is JXD640480A-T LCD liquid crystal display screen, the VDD pin of described JXD640480A-T LCD liquid crystal display screen connects with 3.3V power output end, the VSS pin ground connection of described JXD640480A-T LCD liquid crystal display screen, the DB0 pin of described JXD640480A-T LCD liquid crystal display screen, DB1 pin, DB2 pin, DB3 pin, DB4 pin, DB5 pin, DB6 pin, DB7 pin, DB8 pin, DB9 pin, DB10 pin, DB11 pin, DB12 pin, DB13 pin, DB14 pin and DB15 pin respectively with the 26th pin of AtmelSAM3X8E ARM Cortex-M3 processor, 27th pin, 28th pin, 55th pin, 56th pin, 57th pin, 58th pin, 59th pin, 61st pin, 62nd pin, 29th pin, 30th pin, 33rd pin, 34th pin, 35th pin and the 36th pin connect, the RS pin of described JXD640480A-T LCD liquid crystal display screen, / WR pin, / RD pin, / CS pin and/RST pin respectively with the 39th pin of AtmelSAM3X8E ARM Cortex-M3 processor, 38th pin, 37th pin, 40th pin and the 42nd pin connect.
When the utility model uses, the each phase voltage of civil power and current data is gathered by being arranged on the voltage transformer (VT) of civil power three-phase voltage outgoing side or voltage changer and current transformer, one end of a voltage transformer (VT) secondary is connect by the VA1 interface of the P1 port in voltage acquisition input circuit 3, VA2 interface connects the other end of a voltage transformer (VT) secondary, gather conditioning A phase voltage data, the VB1 interface of P1 port connects one end of another voltage transformer (VT) secondary, VB2 interface connects the other end of another voltage transformer (VT) secondary, gather conditioning B phase voltage data, the VC1 interface of P1 port connects one end of the 3rd voltage transformer (VT) secondary, VC2 interface connects the other end of the 3rd voltage transformer (VT) secondary, gather conditioning C phase voltage data, the IA1 interface of the P2 port in current acquisition input circuit 4 connects one end of a current transformer secondary, IA2 interface connects the other end of a current transformer secondary, gather conditioning A phase current data, the IB1 interface of P2 port connects one end of another current transformer secondary, IB2 interface connects the other end of another current transformer secondary, gather conditioning B phase current data, the IC1 interface of P2 port connects one end of the 3rd current transformer secondary, IC2 interface connects the other end of the 3rd current transformer secondary, gather conditioning C phase current data, the IN1 interface of P2 port connects one end of the 4th current transformer secondary, IN2 interface connects the other end of the 4th current transformer secondary, gather the current data in conditioning zero line N, each phase voltage and current data all send into electrical parameter Acquisition Circuit 2, simultaneously, digital input circuit 5 isolates external consumer, the over-voltage and over-current of peripheral hardware is avoided to cause Power Quality Detection instrument damaged, the vehicle electric energy improve parameter unification of collection is collected feeding micro controller module 1 by electrical parameter Acquisition Circuit 2, clock circuit 6 can measure the real-time time that electric current and voltage gathers, gather the data measured all to show by liquid crystal display circuit 12, gather the equal real-time storage of electric motor car charge data in data storage cell 11, be transferred in background processor for subsequent reference analysis by RS232 interface circuit 10.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every above embodiment is done according to the utility model technical spirit any simple modification, change and equivalent structure change, all still belong in the protection domain of technical solutions of the utility model.
Claims (6)
1. an electric motorcar charging station power quality data Acquisition Circuit, it is characterized in that: the clock circuit (6) comprising micro controller module (1) and connect with described micro controller module (1), crystal oscillating circuit (7), reset circuit (8), RS232 interface circuit (10) and data storage cell (11), the input end of described micro controller module (1) is connected to button operation circuit (9) and for gathering each electric energy electrical parameter in electric motor car charging process and being converted into the electrical parameter Acquisition Circuit (2) of micro controller module (1) accessible metering signal, the input end of described electrical parameter Acquisition Circuit (2) is connected to the voltage acquisition input circuit (3) for each for the civil power of collection phase voltage data being carried out filtering and noise reduction, for each for the civil power of collection phase current data and zero line reference current data being converted to the current acquisition input circuit (4) of electrical parameter Acquisition Circuit (2) accessible voltage data and not being subject to the digital input circuit (5) of external input device over-voltage and over-current damage for the protection of electrical parameter Acquisition Circuit (2), the output terminal of described micro controller module (1) is connected to the liquid crystal display circuit (12) for showing every electrical energy parameter data in electric motor car charging in real time, described micro controller module (1) is AtmelSAM3X8E ARM Cortex-M3 processor, described electrical parameter Acquisition Circuit (2) comprises chip ATT7022C, 1st pin of described chip ATT7022C exports point three tunnels, one tunnel connects with the 7th pin of AtmelSAM3X8E ARM Cortex-M3 processor, another road connects with one end of electric capacity C1, 3rd tunnel connects with one end of resistance R1, the other end ground connection of electric capacity C1, the other end of resistance R1 connects with 5V power output end, 2nd pin of described chip ATT7022C exports a point two-way, one tunnel connects with the 43rd pin of AtmelSAM3X8E ARM Cortex-M3 processor, another road connects with one end of electric capacity C2, the other end ground connection of electric capacity C2, 35th pin of described chip ATT7022C, 36th pin, 37th pin and the 38th pin respectively with the 20th pin of AtmelSAM3X8E ARM Cortex-M3 processor, 21st pin, 23rd pin and the 22nd pin connect.
2. according to a kind of electric motorcar charging station power quality data Acquisition Circuit according to claim 1, it is characterized in that: described clock circuit (6) comprises chip DS1302, 1st pin of described chip DS1302 exports a point two-way, one tunnel connects with 5V power output end, another road connects with one end of electric capacity C40, the other end ground connection of electric capacity C40, 2nd pin of described chip DS1302 is connected with the 3rd pin of chip DS1302 by crystal oscillator Y2, the 4th pin ground connection of described chip DS1302, 5th pin of described chip DS1302, 6th pin and the 7th pin respectively with the 7th pin of AtmelSAM3X8E ARM Cortex-M3 processor, 11st pin and the 21st pin connect, 8th pin of described chip DS1302 connects with 5V power output end.
3. according to a kind of electric motorcar charging station power quality data Acquisition Circuit according to claim 1, it is characterized in that: described voltage acquisition input circuit (3) comprises the voltage input interface P1 for connecting multiple voltage transformer (VT), the VA1 pin of described voltage input interface P1 is connected with the 13rd pin of chip ATT7022C by resistance R4, the link of the 13rd pin of described resistance R4 and chip ATT7022C exports a point two-way, one tunnel connects with one end of resistance R10, another road connects with one end of electric capacity C16, the other end ground connection of electric capacity C16, the VA2 pin of described voltage input interface P1 is connected with the 14th pin of chip ATT7022C by resistance R5, the link of the 14th pin of described resistance R5 and chip ATT7022C exports a point two-way, one tunnel connects with one end of resistance R11, another road connects with one end of electric capacity C17, the other end ground connection of electric capacity C17, the VB1 pin of described voltage input interface P1 is connected with the 16th pin of chip ATT7022C by resistance R6, the link of the 16th pin of described resistance R6 and chip ATT7022C exports a point two-way, one tunnel connects with one end of resistance R12, another road connects with one end of electric capacity C18, the other end ground connection of electric capacity C18, the VB2 pin of described voltage input interface P1 is connected with the 17th pin of chip ATT7022C by resistance R7, the link of the 17th pin of described resistance R7 and chip ATT7022C exports a point two-way, one tunnel connects with one end of resistance R13, another road connects with one end of electric capacity C19, the other end ground connection of electric capacity C19, the VC1 pin of described voltage input interface P1 is connected with the 19th pin of chip ATT7022C by resistance R8, the link of the 19th pin of described resistance R8 and chip ATT7022C exports a point two-way, one tunnel connects with one end of resistance R14, another road connects with one end of electric capacity C20, the other end ground connection of electric capacity C20, the VC2 pin of described voltage input interface P1 is connected with the 20th pin of chip ATT7022C by resistance R9, the link of the 20th pin of described resistance R9 and chip ATT7022C exports a point two-way, one tunnel connects with one end of resistance R15, another road connects with one end of electric capacity C21, the other end ground connection of electric capacity C21, the other end of resistance R10, the other end of resistance R11, the other end of resistance R12, the other end of resistance R13, the other end of resistance R14 and the other end of resistance R15 all connect with the 11st pin of chip ATT7022C.
4. according to a kind of electric motorcar charging station power quality data Acquisition Circuit according to claim 1, it is characterized in that: described current acquisition input circuit (4) comprises the electric current input interface P2 for connecting multiple current transformer, the IA1 pin of described electric current input interface P2 is connected with the 3rd pin of chip ATT7022C by resistance R16, 3rd pin of described resistance R16 and chip ATT7022C exports a point two-way, one tunnel connects with one end of resistance R28, another road connects with one end of electric capacity C22, the other end ground connection of electric capacity C22, the IA1 pin of described electric current input interface P2 is connected with the IA2 pin of electric current input interface P2 by resistance R24, the IA2 pin of described electric current input interface P2 is connected with the 4th pin of chip ATT7022C by resistance R17, 4th pin of described resistance R17 and chip ATT7022C exports a point two-way, one tunnel connects with one end of resistance R29, another road connects with one end of electric capacity C23, the other end ground connection of electric capacity C23, the IB1 pin of described electric current input interface P2 is connected with the 6th pin of chip ATT7022C by resistance R18, 6th pin of described resistance R18 and chip ATT7022C exports a point two-way, one tunnel connects with one end of resistance R30, another road connects with one end of electric capacity C24, the other end ground connection of electric capacity C24, the IB1 pin of described electric current input interface P2 is connected with the IB2 pin of electric current input interface P2 by resistance R25, the IB2 pin of described electric current input interface P2 is connected with the 7th pin of chip ATT7022C by resistance R19, 7th pin of described resistance R19 and chip ATT7022C exports a point two-way, one tunnel connects with one end of resistance R31, another road connects with one end of electric capacity C25, the other end ground connection of electric capacity C25, the IC1 pin of described electric current input interface P2 is connected with the 9th pin of chip ATT7022C by resistance R20, 9th pin of described resistance R20 and chip ATT7022C exports a point two-way, one tunnel connects with one end of resistance R32, another road connects with one end of electric capacity C26, the other end ground connection of electric capacity C26, the IC1 pin of described electric current input interface P2 is connected with the IC2 pin of electric current input interface P2 by resistance R26, the IC2 pin of described electric current input interface P2 is connected with the 10th pin of chip ATT7022C by resistance R21, 10th pin of described resistance R21 and chip ATT7022C exports a point two-way, one tunnel connects with one end of resistance R33, another road connects with one end of electric capacity C27, the other end ground connection of electric capacity C27, the IN1 pin of described electric current input interface P2 is connected with the 21st pin of chip ATT7022C by resistance R22, 21st pin of described resistance R22 and chip ATT7022C exports a point two-way, one tunnel connects with one end of resistance R34, another road connects with one end of electric capacity C28, the other end ground connection of electric capacity C28, the IN1 pin of described electric current input interface P2 is connected with the IN2 pin of electric current input interface P2 by resistance R27, the IN2 pin of described electric current input interface P2 is connected with the 22nd pin of chip ATT7022C by resistance R23, 22nd pin of described resistance R23 and chip ATT7022C exports a point two-way, one tunnel connects with one end of resistance R35, another road connects with one end of electric capacity C29, the other end ground connection of electric capacity C29, the other end of resistance R28, the other end of resistance R29, the other end of resistance R30, the other end of resistance R31, the other end of resistance R32, the other end of resistance R33, the other end of resistance R34 and the other end of resistance R35 all connect with the 11st pin of chip ATT7022C.
5. according to a kind of electric motorcar charging station power quality data Acquisition Circuit according to claim 1, it is characterized in that: described digital input circuit (5) comprises the chip U1 of model NEC2501, the chip U2 of model NEC2501, the chip U3 of model NEC2501 and the chip U4 of model NEC2501, 1st pin of described chip U1 is connected with the 27th pin of chip ATT7022C by resistance R36, described resistance R36 connects with one end of electric capacity C30 with the link of the 27th pin of chip ATT7022C, the other end ground connection of electric capacity C30, 2nd pin of described chip U1 is by light emitting diode D2 ground connection, 3rd pin of described chip U1 and the input end of the 4th pin are peripheral hardware input interface P3, 1st pin of described chip U2 is connected with the 28th pin of chip ATT7022C by resistance R37, described resistance R37 connects with one end of electric capacity C31 with the link of the 28th pin of chip ATT7022C, the other end ground connection of electric capacity C31, 2nd pin of described chip U2 is by light emitting diode D3 ground connection, 3rd pin of described chip U2 and the input end of the 4th pin are peripheral hardware input interface P4, 1st pin of described chip U3 is connected with the 30th pin of chip ATT7022C by resistance R38, described resistance R38 connects with one end of electric capacity C32 with the link of the 30th pin of chip ATT7022C, the other end ground connection of electric capacity C32, 2nd pin of described chip U3 is by light emitting diode D4 ground connection, 3rd pin of described chip U3 and the input end of the 4th pin are peripheral hardware input interface P5, 1st pin of described chip U4 is connected with the 31st pin of chip ATT7022C by resistance R39, described resistance R39 connects with one end of electric capacity C33 with the link of the 31st pin of chip ATT7022C, the other end ground connection of electric capacity C33, 2nd pin of described chip U4 is by light emitting diode D5 ground connection, 3rd pin of described chip U4 and the input end of the 4th pin are peripheral hardware input interface P6.
6. according to a kind of electric motorcar charging station power quality data Acquisition Circuit according to claim 1, it is characterized in that: described liquid crystal display circuit (12) is JXD640480A-T LCD liquid crystal display screen, the VDD pin of described JXD640480A-T LCD liquid crystal display screen connects with 3.3V power output end, the VSS pin ground connection of described JXD640480A-T LCD liquid crystal display screen, the DB0 pin of described JXD640480A-TLCD LCDs, DB1 pin, DB2 pin, DB3 pin, DB4 pin, DB5 pin, DB6 pin, DB7 pin, DB8 pin, DB9 pin, DB10 pin, DB11 pin, DB12 pin, DB13 pin, DB14 pin and DB15 pin respectively with the 26th pin of AtmelSAM3X8E ARM Cortex-M3 processor, 27th pin, 28th pin, 55th pin, 56th pin, 57th pin, 58th pin, 59th pin, 61st pin, 62nd pin, 29th pin, 30th pin, 33rd pin, 34th pin, 35th pin and the 36th pin connect, the RS pin of described JXD640480A-T LCD liquid crystal display screen, / WR pin, / RD pin, / CS pin and/RST pin respectively with the 39th pin of AtmelSAM3X8E ARM Cortex-M3 processor, 38th pin, 37th pin, 40th pin and the 42nd pin connect.
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| CN201520054351.0U CN204374338U (en) | 2015-01-27 | 2015-01-27 | A kind of electric motorcar charging station power quality data Acquisition Circuit |
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| CN201520054351.0U CN204374338U (en) | 2015-01-27 | 2015-01-27 | A kind of electric motorcar charging station power quality data Acquisition Circuit |
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| CN107817403A (en) * | 2017-10-31 | 2018-03-20 | 惠州鼎宝金属制品有限公司 | A kind of fault detection system for oven |
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| CN107817403A (en) * | 2017-10-31 | 2018-03-20 | 惠州鼎宝金属制品有限公司 | A kind of fault detection system for oven |
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