CN201637779U - Non-card carrier-wave prepayment watt-hour meter - Google Patents
Non-card carrier-wave prepayment watt-hour meter Download PDFInfo
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- CN201637779U CN201637779U CN2010201669994U CN201020166999U CN201637779U CN 201637779 U CN201637779 U CN 201637779U CN 2010201669994 U CN2010201669994 U CN 2010201669994U CN 201020166999 U CN201020166999 U CN 201020166999U CN 201637779 U CN201637779 U CN 201637779U
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Abstract
The utility model relates to a non-card carrier-wave prepayment watt-hour meter which pertains to the field of meters. As for the non-card carrier-wave prepayment watt-hour meter, a master chip of a microprocessor is connected with a carrier wave module; and the carrier wave module is connected with a mains supply. The master chip of the microprocessor is connected with the carrier wave module, therefore, the carrier-wave power-reading intelligent prepayment watt-hour meter can exchange carrier wave information by power lines, and complete reading of electric quantity and management of pre-received electricity fee. The non-card carrier-wave prepayment watt-hour meter is characterized by being capable of realizing remote reading of electric quantity and remote management of prepaid electric quantity without an IC card or other intermediate medium, having the functions of cutting power off when a user owes the fee or the meter is overloaded, meeting the multi-interval and multi-rate requirement of the power system carried out gradually in recent years, and, storing all the stored data for more than 10 years after the power is cut off.
Description
Technical field
The utility model relates to a kind of no card carrier wave prepayment meter, belongs to the ammeter field.
Background technology
Fast development along with new and high technology especially electronic information technology, the advantage of products such as electronic type, multi-functional, high precision, many rates, automatic data logging highlights, and progressively become the main flow of electric energy meter development, in the years to come, this trend will be more obvious.
In order to solve the drawback in mechanical type ammeter ' s reading meter, charge and the management, a lot of charge ammeter and smart card controlled pre-paid utility meter have automatically appearred, as the Chinese patent (patent No.: 96212768.X) disclose a kind of " smart card controlled pre-paid utility meter device ", this device is made up of Single Chip Microcomputer (SCM) system, IC-card, metering signal detecting device, display and circuit breaker, the P0 mouth of the single-chip microcomputer of this device is connected with ROM, the P2 mouth is as high address and data line difference ground connection location latch and ROM, address latch is connected with ROM, RESET termination reset circuit.Low 4 of termination P1 mouth are controlled in the read-write of the series eeprom of IC-card, insert in IC-card seat slot.This device adopts IC-card to finish pre paid functionality, because IC-card self easily loses, and pre-payment action need user holds IC-card and finish, and is further, also needs power supply unit to prepare the corresponding reading device of IC-card, or the like a series of IC-card maintenance work also very loaded down with trivial details.
Summary of the invention
The purpose of this utility model is to provide a kind of no card carrier wave prepayment meter that can realize remote copying electric weight and telemanagement prepayment electric quantity.
Technical solution
The utility model comprises: microprocessor master chip, LCD display module, infrared communication module, outer memory module, clock battery module, pulse outputting unit, relay control module, power supply processing module, electric energy metrical module, the microprocessor master chip is connected with carrier module, and carrier module is connected with mains supply.
The carrier transmit end PSK_OUT of carrier module and the PSK_OUT on microprocessor master chip end joins, and carrier wave receiving end SIGIN holds with SIGIN on the microprocessor master chip and is connected.
The MODE of microprocessor master chip, PRO_SCL, PRO_SDA pin are drawn programming port, and wherein the MODE pin connects and draws resistance, ground interface on the programming port and power supply respectively with circuit in the ground interface be connected with power supply.
Be provided with in the outer memory module and preserve ammeter running parameter and service data, running parameter comprises: time on date, ammeter address, ammeter constant, alarm electric weight, freeze-off time, work code data, service data comprises: current total electric weight, dump energy, newly purchase electric weight, relay duty, yesterday and freeze total electric weight, last month and freeze total electric weight.
The utility model is owing to connected carrier module on the microprocessor master chip, so ammeter can carry out the carrier information exchange by line of electric force, finish the electric weight collection and copy with the power carrier collection of advance electricity bill control and copy the prepayment intelligent electric energy meter.
The important feature that this technical products is different from other like products has:
● need not IC-card or other intermediate mediums and just can realize remote copying electric weight and telemanagement prepayment electric quantity;
● have the defencive function of arrearage power down function and the outage of overload back;
● can satisfy multi-period many rates demand that electric system is progressively carried out in recent years;
● after the outage, all storage data can be preserved more than 10 years;
Advantages such as in brief, this product has intelligent degree height, and pre-payment management is safe and reliable, and remote monitoring is convenient.
Description of drawings
Fig. 1 is the utility model principle of work block diagram;
Fig. 2 is the utility model main control chip circuit connection diagram;
Fig. 3 is the utility model relay partial circuit connection layout;
Fig. 4 is the utility model power supply processing module circuit connection diagram;
Fig. 5 is the utility model outer memory module circuit connection diagram;
Fig. 6 is the utility model DLL (dynamic link library) circuit connection diagram;
Fig. 7 is the utility model pilot lamp partial circuit connection layout;
Fig. 8 is the utility model LCD display part circuit connection diagram;
Fig. 9 is the carrier module circuit connection diagram for the utility model;
Figure 10 is the utility model metering module circuit connection diagram;
Figure 11 is the utility model infrared communication partial circuit connection layout;
Figure 12 is the utility model main program flow block diagram;
Figure 13 is the utility model initialization module FB(flow block);
Figure 14 is the utility model power down process module FB(flow block);
Figure 15 is the utility model interruption pulse detection module FB(flow block);
Figure 16 interrupts idle pulse detection module FB(flow block) for the utility model;
Figure 17 is the utility model carrier communication module FB(flow block);
Figure 18 is the utility model infrared communication module FB(flow block);
Figure 19 is the utility model relay status module FB(flow block).
Embodiment
The utility model adopts single-phase ammeter, single-phase ammeter comprises microprocessor master chip 1, LCD display module 2, infrared communication module 3, outer memory module 4, clock battery module 5, pulse outputting unit 6, relay control module 7, power supply processing module 8, electric energy metrical module 9, microprocessor master chip 1 is connected with carrier module 10, and carrier module 10 is connected with mains supply; The carrier transmit end PSK_OUT of carrier module 10 and the PSK_OUT on the microprocessor master chip 1 end joins, and carrier wave receiving end SIGIN holds with SIGIN on the microprocessor master chip 1 and is connected; The MODE of microprocessor master chip 1, PRO_SCL, PRO_SDA pin are drawn programming port, and wherein the MODE pin connects and draws resistance, ground interface on the programming port and power supply respectively with circuit in the ground interface be connected with power supply.
With reference to Fig. 1: ammeter adopts PL3106 series microprocessor master chip 1, and is the center with PL3106 series microprocessor master chip 1; 2 deadlines of LCD display module, power consumption, dump energy, the circulation of newly purchasing electric weight etc. show; Infrared communication module 3 is finished preservation information in the outer memory module 4 and the communication of PDA palm PC; Be provided with in the outer memory module 4 and preserve ammeter running parameter and service data, running parameter comprises: time on date, ammeter address, ammeter constant, alarm electric weight, freeze-off time, work code data, and service data comprises: current total electric weight, dump energy, newly purchase electric weight, relay duty, yesterday and freeze total electric weight, last month and freeze total electric weight; Clock battery module 5 ensures that the powering-off state of ammeter continues the time of metering ammeter down; The output of pulse when pulse outputting unit 6 is finished the ammeter electricity consumption; Switching electricity condition by relay control module 7 management ammeters; Power supply processing module 8 is finished the conversion of internal electric source and is supplied with; Data computation in 9 pairs of supply lines of electric energy metrical module; Carrier module 10 is finished the communication of the information of preserving in the outer memory module 4.
With reference to Fig. 2: use PL3106 series to make microprocessor master chip 1 here, simply describe successively according to the ascending sub-module of this chip pin:
● PULSE is the pulse output signals of ammeter electricity consumption, through the holding circuit of R14 and C14, and the pulse pilot lamp on the control ammeter panel;
● S0～S23 and COM1～COM4 are respectively the horizontal and vertical data path of LCD screen, and in addition, LCDP links to each other with power supply through the holding circuit of D7 and C12, finishes the driving of LCD display module 2;
● RLO is connected the drive part of relay control module 7 with RLC;
● PSK_OUT is the transmitting terminal of carrier module 10 radiating circuits, and corresponding receiving end is connected in the SIGIN pin of microprocessor master chip 1;
● XT1I is connected the vibration that YI, C6 and C8 provide 9.6MHZ with XT1O, to guarantee to finish carrier communication; XT2I is connected XT1, C4 and C5 and provides the vibration of 32.768KHz real time clock with XT2O;
● P1.4 is a TIMER1 count pulse input end;
● SDA24, SCL24, three pins of WP24 connect the input of serial data, serial ports clock and the write-protect pin of outer memory module 4 respectively, finish the communication with outer memory module 4, see outer memory module 4 for details;
● P3.0 and P3.1 control infrared communication module 3, see infrared communication mould 3 for details;
● MODE, PRO_SCL, PRO_SDA are the inside programming terminal of microprocessor master chip 1, see the programming part for details;
● VBAT, after the holding circuit through C7 and R10 composition, connect the disposable battery BT2 of welding when dispatching from the factory, S12 is a measurement point, finishes 2 short circuits measuring back S12;
● a pair of mixed frequency signal terminal when FLTi and FLTo, wherein FLTo is the filtering signal input, pin enters inner limiting amplifier thus behind mixed frequency signal process bandpass filtering, FLTi is the mixed frequency signal output terminal, and the signal of inner frequency mixer output pin output thus enters external ceramic wave filter BC1; Wherein R3 is the pull-up resistor of FLTI pin;
● CMPI adjusts input end for the builtin voltage comparer, and through the R28 dividing potential drop, the filtering that C11, R29 form is imported after the R5 dividing potential drop by power supply;
● VREF is a built-in voltage reference source input end, and promptly reference voltage connects C9 and finishes defencive function.
With reference to Fig. 3: that the control chip of relay control module 7 is selected for use is XC2023, and this chip mainly is the integrated circuit that is mainly used in the special use of JMK-94F magnetic latching relay.Microprocessor master chip 1 control RLO, RLC pin are done the input of relay control chip, and XC2023 provides corresponding output OUT_A and OUT_B, behind R4 and R15 composition low-pass filter, connect relay, finish the control to relay.Wherein, RLO is connected pull-up resistor with the RLC signal demand, and rated voltage is provided during with assurance work; The VCC pin connects decoupling circuit, plays the effect of protection.
After Fig. 4: L-220V (power supply input live wire), N-220V (power supply input zero line) dividing potential drop through the isolation of RV1, R26, be divided into two-way through coupling mechanism: after passing through the filtering of L1, L6 respectively, enter the bridge rectifier circuit of forming by D1, D3, D4, D5, via C24 filtering once more, after entering the IC1 three-terminal voltage-stabilizing, by C27 filtering, so far finish the power source voltage conversion at last.
With reference to Fig. 5: the outer memory module 4 main AT24LC04N chips that use, the SDA of chip, SCL link to each other with the corresponding control pin of microprocessor master chip 1 respectively with WP, connect the pull-up resistor of 10K equally, guarantee to be in maintenance high level when importing attitude; The VCC of chip connects 10 Ω current-limiting resistances and 0.1 μ f shunt capacitance, is protected; The A0 of chip～A2 pin does not use, and links to each other with VSS, i.e. ground connection.
With reference to Fig. 6: part is the programming port of microprocessor master chip 1 here.MODE, PRO_SCL, the PRO_SDA pin of microprocessor master chip 1 are drawn, and wherein the MODE pin need connect the pull-up resistor of 4.7K, keeps high level when guaranteeing to be in the input attitude.In addition, programming port also need the programmable device of microprocessor master chip 1 provide and high voltage, finish microprocessor master chip 1 programming.
With reference to Fig. 7: ammeter all has three pilot lamp, is respectively pulse pilot lamp and programming pilot lamp, and the pilot lamp of wherein programming is retained near the programming port, is not presented on the ammeter panel.Equally, here three signal PULSE, PRO_SCL link to each other with microprocessor master chip 1 respective pin respectively with PRO_SDA, all connect the 1K pull-up resistor simultaneously, keep high level when guaranteeing to be in the input attitude.
With reference to Fig. 8: 24 of LCD display segment signal output pins in the LCD display module 2 (S0～S23) and four common port output pins (COM1～COM4) link to each other with the corresponding control pin of microprocessor master chip 1 respectively.Microprocessor master chip 1PL3106C is embedded with the LCD driving circuit.S0～S23 mouth all has multiplexing function, can be used as common two-way I/O mouth, can be used as the input and output of demonstration when enabling the LCD function again.
With reference to Fig. 9: the carrier communication here is based on the PSK modulation system, adopts the direct sequence spread spectrum communication modes.Broadband communication be meant be used for the information of transmitting signal bandwidth much larger than a kind of communication mode of the bandwidth of information own.Information no longer is a key factor of decision modulation signal bandwidth, and the bandwidth of its modulation signal is mainly decided by the spread spectrum function.At transmitting terminal, the broadening of frequency band be by the coding and the modulation (spread spectrum) method realize.At receiving end, then be to carry out relevant treatment by the synchronous signal of received signal and and the frequency expansion sequence of making a start to compress and recover raw data.Signal bandwidth is called spreading gain with the ratio of prime information bandwidth behind the spread spectrum, and the big more then antijamming capability of spreading gain is strong more.The carrier transmit centre frequency 120K of carrier module 10, bandwidth 15KHz, carrier transmit end PSK_OUT receive the PSK_OUT end of chip, and carrier wave receiving end SIGIN receives the SIGIN end of chip.
The power amplification circuit of the first half carrier module 10 among Fig. 9.This part circuit is to be used for the carrier (boc) modulated signals that microprocessor master chip 1 produces is carried out being coupled on the line of electric force after the power amplification.After the carrier wave function was enabled, when carrier signal was held at PSK_OUT, waveform was the square wave that 0-5V changes, and comprises abundant harmonic wave; Last waveform is through R34 and C31 filtering, the Z1 voltage stabilizing, and the emitter follower that Q3 and Q2 form amplifies, the D10 limited amplitude protection; Same, following waveform is through C32 and R35 filtering, the Z2 voltage stabilizing, and Q1 and Q4 amplify, the D2 amplitude limit; So far the square-wave signal of PSK_OUT end is exaggerated.Because the signal after amplifying is rich in harmonic wave, for reducing the harmonic pollution to electrical network, the filter shape through C30 and L7 composition via bilateral diode D16 voltage-limiting protection, is coupled on the low-voltage power line by pickup coil T2 again.Reduce C30 and increase L7 will reduce transmitter current and improve waveform.Otherwise increase transmitter current and waveform distortion situation.Because the load capacity of coil is certain, adjust emissive power and oneself power consumption that C30 and L7 will influence coil.
The latter half is coupling of carrier module 10 carrier waves and receiving circuit among Fig. 9.L-220V and N-220V power lead are through the filtering shaping circuit of L9 and CZ composition; come from low-voltage power line pickup coil T2 coupling; through bilateral diode D16 voltage-limiting protection; R24 current-limiting protection; frequency range is the antiresonant circuit of 120KHz signal through L8, C39 and C40 composition; through behind the spike interference on the clamping circuit absorption low-voltage power line of D12 and D13 composition, the amplitude limit, the voltage that makes SIGIN is less than 700mv at last.Height, the source current providing capability of the size of carrier transmit power and VHH power supply amplitude are closely related, improve the power supply amplitude in the certain limit, increase power, prolong communication distance thereby can effectively strengthen emissive power.
With reference to Figure 10: electric energy metrical module 9 is used the ADE7755 computation chips, simply describes successively according to the ascending sub-module of this chip pin:
● AVDD and DVDD are respectively the power supply of analog power and numeral, connect high level successively, and C43 is a decoupling capacitance;
● AC/
For Hi-pass filter HPF selects, be connected HPF gating in the expression current channel here with high level;
● N/C is the blank pipe pin, and is unsettled;
● V1P and V1N are respectively the positive analog input and the negative analog input of current channel.The positive current that links to each other with relay is finished frequency-selective filtering through the series resonant circuit of L3, R53 and C42 composition and is obtained positive analog input V1P; Same, the negative current that links to each other with relay is finished frequency-selective filtering through the series resonant circuit of L2, R52 and C41 composition and is obtained negative analog input V1N;
● V2P/V2N is respectively the positive analog input and the negative analog input of voltage channel.Earth signal is imported negative voltage V2N through the Hi-pass filter of C1 and R54 composition; The bleeder circuit that the 220V ground wire is formed through L4, R70, R71, R63, optional divider resistance R58, R57, R50, R49, R61, R60, R59, R51 and R55, the Hi-pass filter that R62, C2 and C3 form, input positive voltage V2P;
● REF (IN/OUT) is a reference voltage I/O pin, is connected with ground by decoupling capacitance C35;
●
Be the reseting pin of ADE7755 computation chip, connect R66 pull-up resistor and C36 decoupling capacitance.
● AGND and DGND are respectively simulation ground and digitally, connect public ground successively.
● SCF is that the verification frequency selects, and determines the output frequency of CF with S0, S1.Here SCF ground connection.
● S0 and S1 finish the selection of numeral/frequency transform coefficient jointly, S0 ground connection here, and S1 connects high level, the connection of comprehensive SCF, divide ratio is 2
19, F
1-4Be 6.8Hz, the highest output frequency of CF is 16*F1, F2=21.76Hz
● CF is frequency verification output, sees the explanation of S0 and S1 place, is used for the ammeter verification here.The calibration pulse process U6 coupling mechanism of P+ and P-, by the holding circuit of R56 and R69 formation, then, and the verification of CF output frequency, through the holding circuit of R56 and R69 formation, the U7 coupling mechanism obtains verification pulse PULSE equally;
● F1 and F2 do not use here for the output of low frequency logic, and be unsettled;
● G0 and G1 finish the gain of selecting current channel jointly.Here all connect high level, the gain of selection is 16, and the maximum differential signal is ± 30mV.
● CLKIN and CLKOUT are respectively clock input and clock output, connect the running clock that XTAL1, C37 and C38 provide 3.579545M;
With reference to Figure 11: this part is an infrared communication module 3.The P3.0 of microprocessor master chip 1 and P3.1 port connect the pull-up resistor of 4.7K, and infrared receiving tube U8 has the effect of demodulation.When the transmitting terminal TxD0 of microprocessor master chip 1 (P3.1) output high level, the one tunnel through the R12 dividing potential drop, and the Q5 signal amplifies, and sends infrared signal by D8, and another route U8 returns to microprocessor master chip 1 with high level signal; During TxD0 (P3.1) output low level, the 38K infrared signal through modulating sends to the receiving end RxD0 (P3.0) of microprocessor master chip 1 after the receiving tube demodulation.Wherein R13 finishes the defencive function to D8.
With reference to Figure 12: after the device power, at first enter initialization module, to each control pin, parameter default settings; Whether power down of checkout facility in the power down process module then, if power down, to preservations such as current state, data; Next enter the interruption pulse detection module successively and interrupt idle pulse detection module,, and finish respective handling respectively to meritorious pulse and idle pulse detection; The incoming carrier communication module, whether have carrier communication demand, if having, finish the carrier communication of technical routine, otherwise enter next module if detecting; Enter the infrared communication module, similarly, whether have infrared communication demand, if having, finish the infrared communication of technical routine, otherwise enter next module if detecting; Enter the relay status module, detect the operational requirements whether pair relay is arranged,, otherwise begin to continue cycle detection from initialization module if finish assigned operation.In sum, can see that except that initialization module, there is priority ranking in all the other each modules when carrying out.
With reference to Figure 13: in initialization module, successively house dog, two timers, two serial ports, carrier communication parameter, infrared communication parameter, electric energy metrical parameters are provided with, be initial value, ensure every when taking turns cycle detection the state of equipment be more stable, avoided equipment extraneous or that cause because of self reason state accidental modification at the beginning.
With reference to Figure 14: in the power down process module, check at first repeatedly whether the power down zone bit is 1 (power down), if power down is opened and interrupted withdrawing from; Otherwise check the carrier communication state,, do not do power down protection so and handle, open and interrupt withdrawing from if send attitude; Otherwise whether the time-delay of checking other operations finishes, if do not finish, does not do power down process, opens to interrupt withdrawing from; Otherwise interrupt the pass, preserves, idle current rate pulse, repeatedly write-protect storage chip; Last power down protection is finished, and opens to interrupt withdrawing from.
With reference to Figure 15: in the interruption pulse detection module, at first carry out the detection of pulse sign.Begin interrupt operation after the pulse Mark Detection is correct.In detecting, interruption pulse reads current revolution and the current rate umber of pulse of current table at first respectively, with comparison and the processing that is used for umber of pulse and revolution.When two kinds of situations of relatively existence of prepulse, promptly umber of pulse equates unequal with umber of pulse and revolution with revolution in current burst process.
(1) when umber of pulse equates with revolution, preserve and work as prepulse, carry out the processing and the preservation of dump energy again.
(2) when revolution and umber of pulse are unequal, be divided into two kinds of situations again, promptly umber of pulse greater than revolution and umber of pulse less than revolution.After need reading current rate integer during less than revolution, processing is handled and preserved to current rate integer, umber of pulse carries out reading, handle and preserving of dump energy again.When umber of pulse is then carried out current burst process during greater than revolution, after prepulse, carry out reading, handle and preserving of dump energy again preserving.
With reference to Figure 16: in interrupting idle pulse detection module, at first carry out the detection of idle pulse sign.In the detection that detects the laggard horizontal pulse buffer register of idle pulse signal.Begin interrupt operation after idle pulse Mark Detection is correct.In detecting, interruption pulse reads current revolution and the current rate umber of pulse of current table at first respectively, with comparison and the processing that is used for umber of pulse and revolution.When two kinds of situations of relatively existence of prepulse, promptly umber of pulse equates unequal with umber of pulse and revolution with revolution in current burst process.
(1) when umber of pulse equates with revolution, read idle integer-bit, preserve in the backup of carrying out pulse buffer processing and pulse in the processing of carrying out integer-bit with after preserving.
(2) when revolution and umber of pulse are unequal, be divided into two kinds of situations again, promptly umber of pulse greater than revolution and umber of pulse less than revolution.Need carry out burst process when umber of pulse during less than revolution, read idle integer-bit, in the processing of carrying out integer-bit with preserve the back pulse buffer is handled and the backup preservation of pulse carrying out.When umber of pulse during greater than revolution then verification preserve and work as prepulse, carry out backup, the preservation of pulse buffer processing and pulse at last.
With reference to Figure 17: in the carrier communication module, at first, check the carrier communication zone bit.The carrier wave zone bit then carries out the inspection of table number when equating, checks promptly whether the destination address in the carrier data frame is consistent with the ammeter table number.6 table numbers check by turn, have a carrier wave that withdraws from ammeter when inconsistent to receive.When the table number inspection is correct, then put the carrier communication position, the beginning carrier wave receives to be handled.After carrier wave receives and handles beginning, judge that and then carrier wave receives instruction character.If condition meets, then carry out the operation of uplink relay and downlink relay.
Secondly,, read ammeter data, then carry out following operation if host computer will carry out carrier wave by carrier wave being received the judgement of instruction character:
(1) receives in the processing procedure at carrier wave, at first judge whether to read current total electric weight, read total electric weight when judging certainly, total electric weight verification of reading is passed through, then form affirmative acknowledgement frame or negative response frame, acknowledgement frame is finished the communication of reading current total electric weight with the host computer carrier wave by the carrier transmitting-receiving handling procedure again.
(2) if carrier wave reads the judgement of current total electric weight when negating, then judge whether to read current all electric weight, read current all electric weight when judging certainly, reading current all electric weight verifications passes through, then form affirmative acknowledgement frame or negative response frame, acknowledgement frame is finished the communication of reading current all electric weight with the host computer carrier wave by the carrier transmitting-receiving handling procedure again.
(3) if carrier wave reads the judgement of current all electric weight when negating, then judge whether to read current rate electric weight, read current rate electric weight when judging certainly, reading the verification of current rate electric weight passes through, then form affirmative acknowledgement frame or negative response frame, acknowledgement frame is finished the communication of reading current rate electric weight with the host computer carrier wave by the carrier transmitting-receiving handling procedure again.
(4) if carrier wave reads the judgement of current rate electric weight when negating, then judge whether to read total electric weight last month, read total electric weight last month when judging certainly, reading total electric weight verification last month passes through, then form affirmative acknowledgement frame or negative response frame, acknowledgement frame is finished the communication of reading total electric weight last month with the host computer carrier wave by the carrier transmitting-receiving handling procedure again.
(5) if carrier wave reads the judgement of total electric weight last month when negating, then judge whether to read all electric weight last month, read all electric weight last month when judging certainly, reading all electric weight verifications last month passes through, then form affirmative acknowledgement frame or negative response frame, acknowledgement frame is finished the communication of reading all electric weight last month with the host computer carrier wave by the carrier transmitting-receiving handling procedure again.
(6) if carrier wave reads the judgement of all electric weight last month when negating, then judge whether to read the total electric weight of rate last month, read the total electric weight of rate last month when judging certainly, reading the total electric weight verification of rate last month passes through, then form affirmative acknowledgement frame or negative response frame, acknowledgement frame is finished the communication of reading the total electric weight of rate last month with the host computer carrier wave by the carrier transmitting-receiving handling procedure again.
(7) if carrier wave reads the judgement of the total electric weight of rate last month when negating, then judge whether to read the date and time of checking meter, read the date and time of checking meter when judging certainly, reading the date and time verification of checking meter passes through, then form affirmative acknowledgement frame or negative response frame, acknowledgement frame is finished the communication of reading the date and time of checking meter with the host computer carrier wave by the carrier transmitting-receiving handling procedure again.
(8) if carrier wave reads the judgement of the date and time of checking meter when negating, then judge whether to read relay status, read relay status when judging certainly, reading the relay status verification passes through, then form affirmative acknowledgement frame or negative response frame, acknowledgement frame is finished the communication of reading relay status with the host computer carrier wave by the carrier transmitting-receiving handling procedure again.
(9) if carrier wave reads the judgement of relay status when negating, then judge whether to read the ammeter constant, read the ammeter constant when judging certainly, reading the verification of ammeter constant passes through, then form affirmative acknowledgement frame or negative response frame, acknowledgement frame is finished the communication of reading the ammeter constant with the host computer carrier wave by the carrier transmitting-receiving handling procedure again.
(10) if carrier wave reads the judgement of ammeter constant when negating, then judge whether to read the automatic data logging date, read the automatic data logging date when judging certainly, reading the verification of automatic data logging date passes through, then form affirmative acknowledgement frame or negative response frame, acknowledgement frame is finished the communication of reading the automatic data logging date with the host computer carrier wave by the carrier transmitting-receiving handling procedure again.
(11) if carrier wave reads the judgement on automatic data logging date when negating, then judge whether to read and purchase electric weight, read when judging certainly and purchase electric weight, read and purchase the electric weight verification and pass through, then form affirmative acknowledgement frame or negative response frame, acknowledgement frame is finished with the host computer carrier wave by the carrier transmitting-receiving handling procedure and is read the communication of purchasing electric weight.
(12) if carrier wave reads the judgement of purchasing electric weight when negating, then judge whether to read dump energy, read dump energy when judging certainly, reading the dump energy verification passes through, then form affirmative acknowledgement frame or negative response frame, acknowledgement frame is finished the communication of reading dump energy with the host computer carrier wave by the carrier transmitting-receiving handling procedure again.
The 3rd, by carrier wave being received the judgement of instruction character, ammeter data is set if host computer will carry out carrier wave, then carry out following operation:
(1) receives in the processing procedure at carrier wave, at first judge whether the warning electric weight will be set, the warning electric weight is set when judging certainly, the verification of warning electric weight is set to be passed through, then form affirmative acknowledgement frame or negative response frame, acknowledgement frame is finished the task that the host computer carrier wave is provided with the warning electric weight by the carrier transmitting-receiving handling procedure again.
(2) if carrier wave is provided with the judgement of warning electric weight when negating, then judge whether total electric weight will be set, total electric weight is set when judging certainly, total electric weight verification is set to be passed through, then form affirmative acknowledgement frame or negative response frame, acknowledgement frame is finished the task that the host computer carrier wave is provided with total electric weight by the carrier transmitting-receiving handling procedure again.
(3) if carrier wave is provided with the judgement of total electric weight when negating, then judge whether relay will be set, relay is set when judging certainly, the relay verification is set to be passed through, then form affirmative acknowledgement frame or negative response frame, acknowledgement frame is finished the task that the host computer carrier wave is provided with relay by the carrier transmitting-receiving handling procedure again.
(4) if carrier wave is provided with the judgement of relay when negating, then judge whether the time on date will be set, time on date is set when judging certainly, the date time check is set to be passed through, then form affirmative acknowledgement frame or negative response frame, acknowledgement frame is finished the task that the host computer carrier wave is provided with the time on date by the carrier transmitting-receiving handling procedure again.
The carrier communication of ammeter and host computer finishes.
With reference to Figure 18: in the infrared communication module, under the cooperation of PDA, when detecting the infrared signal that PDA sends, begin to carry out the infrared communication of positive or negative.The checking of electric energy meter table number need be carried out during infrared communication, the operation that data read, data setting and password are revised three parts can be carried out after table number is proved to be successful.
(1) data read partly comprises: read current total electric weight, read current all total electric weight, read current rate electric weight, read electric weight last month, read all electric weight last month, read rate electric weight last month, read power bound last month, read date and time, read the ammeter constant, read relay status, read the automatic data logging date and read dump energy and purchase electric number of times.
(2) data are provided with part and comprise: power upper limit is set, the date is set, Hour Minute Second is set, table number is set, relay is set, the automatic data logging date is set, electric weight zero and add prepayment electric quantity.
(3) password is revised the modification that part can realize the ammeter password.Carry out infrared communication result's positive or negative replys according to defined terms in the agreement.
With reference to Figure 19: in the relay status module, at first check the relay operation position,, withdraw from so if not to relay operation; Otherwise check the current carrier communication state that whether is in, if not, be maloperation so, withdraw from; Otherwise check whether relay is connected, if relay is connected, disconnects relay so, otherwise engage relay; Finish relay operation.
When the utility model adopts three-phase kilowatt-hour meter, only need be when relating to power unit, it is three-phase supply that single phase poaer supply expands, single-phase carrier wave expansion gets final product for the three-phase carrier wave.Working method is identical with embodiment 1.
Claims (4)
1. there is not card carrier wave prepayment meter, comprise: microprocessor master chip (1), LCD display module (2), infrared communication module (3), outer memory module (4), clock battery module (5), pulse outputting unit (6), relay control module (7), power supply processing module (8), electric energy metrical module (9), it is characterized in that: microprocessor master chip (1) is connected with carrier module (10), and carrier module (10) is connected with mains supply.
2. no card carrier wave prepayment meter according to claim 1, it is characterized in that: PSK_OUT on the carrier transmit end PSK_OUT of carrier module (10) and the microprocessor master chip (1) end joins, and carrier wave receiving end SIGIN holds with SIGIN on the microprocessor master chip (1) and is connected.
3. no card carrier wave prepayment meter according to claim 2, it is characterized in that: MODE, PRO_SCL, the PRO_SDA pin of microprocessor master chip (1) are drawn programming port, wherein the MODE pin connects and draws resistance, ground interface on the programming port and power supply respectively with circuit in the ground interface be connected with power supply.
4. no card carrier wave prepayment meter according to claim 1, it is characterized in that: be provided with in the outer memory module (4) and preserve ammeter running parameter and service data, running parameter comprises: time on date, ammeter address, ammeter constant, alarm electric weight, freeze-off time, work code data, service data comprises: current total electric weight, dump energy, newly purchase electric weight, relay duty, yesterday and freeze total electric weight, last month and freeze total electric weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201669994U CN201637779U (en) | 2010-03-28 | 2010-03-28 | Non-card carrier-wave prepayment watt-hour meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201669994U CN201637779U (en) | 2010-03-28 | 2010-03-28 | Non-card carrier-wave prepayment watt-hour meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201637779U true CN201637779U (en) | 2010-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201669994U Expired - Lifetime CN201637779U (en) | 2010-03-28 | 2010-03-28 | Non-card carrier-wave prepayment watt-hour meter |
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| Country | Link |
|---|---|
| CN (1) | CN201637779U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103675442A (en) * | 2013-12-26 | 2014-03-26 | 龙霏 | Household green power utilization indicating device and achieving method |
| CN105788219A (en) * | 2016-04-29 | 2016-07-20 | 邹平县供电公司 | Remote meter reading system with high anti-interference performance and low bit error rate |
| CN109406872A (en) * | 2018-10-29 | 2019-03-01 | 华立科技股份有限公司 | Detect the method and apparatus that Data Identification is expanded in electric energy meter private |
-
2010
- 2010-03-28 CN CN2010201669994U patent/CN201637779U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103675442A (en) * | 2013-12-26 | 2014-03-26 | 龙霏 | Household green power utilization indicating device and achieving method |
| CN105788219A (en) * | 2016-04-29 | 2016-07-20 | 邹平县供电公司 | Remote meter reading system with high anti-interference performance and low bit error rate |
| CN109406872A (en) * | 2018-10-29 | 2019-03-01 | 华立科技股份有限公司 | Detect the method and apparatus that Data Identification is expanded in electric energy meter private |
| CN109406872B (en) * | 2018-10-29 | 2020-09-25 | 华立科技股份有限公司 | Method and device for detecting private data identification of electric energy meter |
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