CN1091833A - Watt-hour meter time-sharing recording and load control unit - Google Patents
Watt-hour meter time-sharing recording and load control unit Download PDFInfo
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- CN1091833A CN1091833A CN 93102177 CN93102177A CN1091833A CN 1091833 A CN1091833 A CN 1091833A CN 93102177 CN93102177 CN 93102177 CN 93102177 A CN93102177 A CN 93102177A CN 1091833 A CN1091833 A CN 1091833A
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Abstract
The invention discloses a kind of watt-hour meter time-sharing recording and use controller for electric consumption.This device adopts CMOS single-chip microcomputer and floating charge standby power system, it have calendar when walking and power information handle two parallel duties.The present invention utilizes optoelectronic switch to gather the operation information of watt-hour meter, draw various electricity consumption data as calculated, key can be read respectively on display by checking meter: total electricity consumption, the peak, four groups of data of low ebb and conventional electricity consumption, also have printing interface simultaneously, when the user is in overload or electricity consumption beyond the planned quota, can in time report to the police and cut off the power supply.Since adopted CMOS high-performance single-chip microcomputer, so the present invention has simultaneously: the watt-hour meter time-sharing recording, the quantitative and three kinds of functions of electricity-limiter of electric power, and volume is little, and low in energy consumption, the reliability height.
Description
The present invention relates to a kind of electric power measurement device and data processing equipment, the device that especially utilizes the CMOS single-chip microcomputer that the service data of watt-hour meter is handled.
The electric energy overwhelming majority that we use takes from the alternating current of electrical network, and alternating current can only now be found to use, can not store, so when peak of power consumption, both made generator be in the need for electricity that electrical network is not satisfied in oepration at full load yet, otherwise, when low power consumption, generator can only turn round by underload, thereby causes the reduction of generating efficiency.For this reason, power supply department intends adopting the peak electricity consumption to charge at high price, valley power consumption this economic adjustment means of chargeing at a low price, impel the commercial power rich and influential family for reducing production costs, and use low-price electricity more, in the hope of reaching the balance of supply network, thereby give full play to generator usefulness, multiple electricity under the situation that does not increase installed capacity, it is good to send out.
Patented technology 88200233 proposes to measure the peak respectively with the mode that three watt-hour meter of quartzy clock timing circuit control drop into by turns.The device of low ebb and conventional electricity consumption; Though this device can reach the purpose of time-sharing measurement, but often needing to change big switchboard could can hold three watt-hour meter and a timed unit simultaneously, has the anxiety of assembling inconvenience; When checking meter, need convert to the number of degrees of three watt-hour meter and just obtain actual power consumption, increase workload for the person of checking meter; The input of watt-hour meter and to cut out all be to have being switched on or switched off of certain load contact and realize by corresponding, so also be easy to generate loose contact and influence measuring accuracy, work noise is big, the big deficiency that waits of power consumption.Therefore the operational reliability and the metering accuracy of this device all are lower.
At present, power supply department also extensively adopts by means such as dress electrical consuming monitor and electricity-limiters, with the load of control commercial power rich and influential family in peak electricity consumption time domain and total plan of application power consumption, in the hope of power utilization network being tended to balance and reaching the purpose of planned supply and use of electric power; But adopt these separate devices just can achieve the above object simultaneously, be as good as to the user causes by dress and inconvenient maintenance, and function singleness, poor reliability, cost height.
The objective of the invention is for carrying out count by time sharing mechanism, balance and qualification user electricity consumption according to plan with economic means regulation and control power utilization network, providing a kind of has simultaneously: the time-sharing recording power consumption, the qualification momentary load and the three kinds of functions that add up to load are strong in the function of one, the reliability height. and volume is little. assembling and power consumption time-sharing recording and load control unit easy to use.
For realizing above-mentioned task, the solution that the present invention takes is: be made into the rectangle housing that can realize electromagnetic screen with the iron plate material, this structure and watt-hour meter are harmonious and be convenient on switchboard by dress, the top of panel is six charactrons, can read the power use by time shearing data by it, the panel middle part has two keys to be used to check meter and zero clearing, also have alarm lamp simultaneously and for connecing the printing interface that printer is provided with, the panel bottom is that a wiring is closed, in the AC power wiring is arranged, the optoelectronic switch wiring, the boosting battery switch, timing, carry, set, reset key.During normal the operation, use the lead sealing seal.The housing left side has battery to close, external power supply binding post and warning/outage binding post.
The core of circuit is the single-chip microcomputer host computer system, and what the present invention adopted is only tens milliamperes CMOS single-chip microcomputer of working current, and the current supply circuit at it is parallel with float charger, when AC power is cut off the power supply, is the power supply of CMOS single-chip microcomputer by it.
Optoelectronic switch is contained in by the watt-hour meter aluminium dish, in order to gather the rotation information of aluminium dish, the aluminium dish whenever circles, and optoelectronic switch sends an electric pulse to single-chip microcomputer, single-chip microcomputer carries out calculation process to pulse number and interval that optoelectronic switch is sent, can obtain various electricity consumption data.
Program of the present invention has initialization and two parallel worker's morphotype pieces, first worker's attitude is to be provided with the time and to provide time-domain information for second worker's attitude, second worker's attitude is that power information is handled, can provide total electricity consumption. the peak. whether overload or electricity consumption beyond the planned quota of four groups of data of low ebb and conventional electricity consumption and user, in case of necessity, can send sound and light alarm and cut-out power supply.
After adopting above-mentioned measure, the present invention has following characteristics:
It is convenient directly perceived to check meter, and need not convert and just can read total electricity consumption. the peak. and low ebb and conventional four groups of electricity consumption data, and have electrical consuming monitor and electricity-limiter function concurrently, help the enforcement of planned supply and use of electric power.
Low in energy consumption. the life-span is long. and volume is little. and convenient by dress, be easy to promote;
Do not have machinery and electric conversion contact, reliable, noise is little.Have printing interface, be convenient to realize checking meter robotization.
Be described in further details below in conjunction with drawings and Examples.
Fig. 1 is the one-piece construction outside drawing.
Fig. 2 is the circuit function block diagram.
Fig. 3 is that optoelectronic switch is by the dress synoptic diagram.
Fig. 4 is the program function block diagram.
One-piece construction of the present invention is as (Fig. 1); Housing (19) is manufactured to shield the interference of forceful electric power magnetic signal in the switchgear building with iron plate, panel top is six figure place sign indicating number displays (4), check meter and zero clearing two keys (2) in the middle part, surpass in wink and tired super alarm lamp (3-1) and printing interface (0), the bottom is that (24) are closed in wiring, have in closing: optoelectronic switch binding post (5-4). timing. carry. set. the quadruple linkage that resets (2), AC power wiring hole (23); Boosting battery switch (22); When system normally moves, with lead sealing (25) seal; Bottom, housing left side has boosting battery to close (20), external power supply binding post (21) and draw warning/outage binding post (3-2) outward.
The circuit function block diagram is as (Fig. 2), single-chip microcomputer (1) and keyboard (2), display (4) and electric power system (11) composition controller general system; The present invention adopts CMOS type 87C51 single-chip microcomputer or other similar functions CMOS single-chip microcomputer; If when the single-chip microcomputer of employing 80C31 or similar external EPROM and CMOS memory under program and address latch,, can reduce cost and increase the programming degree of freedom though volume is big slightly.
Power-supply system of the present invention (11) comprising: inlet wire wave filter (10). transformer (9). and voltage stabilizer (7) and external power interface (12) and boosting battery (13); Transformer (9) capacity is 2-5W output voltage 8-12V, and inlet wire wave filter (10) is serially connected with between transformer (9) and the power supply, with any model of 1A current capacity all can, be used for some undesired signals of filtering network system, with power conditioner; Output after the transformation rectification, one the tunnel directly supplies nixie display (4), one the tunnel for voltage stabilizer (7), voltage stabilizer (7) output is divided into three the tunnel, one road 5.7V is CMOS single-chip microcomputer (1) and boosting battery (13) power supply through isolating diode (6), the second road 5.7V is optoelectronic switch (5) power supply, and Third Road 5V is other circuit supply except that single-chip microcomputer (1); Boosting battery (13) adopts the enclosure-type rechargeable battery to form pack into the battery of housing (19) side of 4.8V electric battery and closes in (20), float charge voltage during the power supply normal power supply is higher than the terminal voltage of electric battery, make it be in floating charge state, to replenish and to keep battery capacity, when power supply has a power failure, it is powered to keep the operation of single-chip microcomputer for the CMOS single-chip microcomputer again, owing between voltage stabilizer (7) and boosting battery (13), be connected to isolating diode (6), can only be single-chip microcomputer (1) power supply with regard to making the float charger electric current not pour in down a chimney, thereby can make the capacity of boosting battery (13) and volume reduce and prolong power-on time greatly, external power interface (12) is to use during external 9-12V large-capacity battery when having a power failure for a long time for need.
On the basis of above-mentioned general single chip system, this device also has data acquisition unit (optoelectronic switch (5)) and warning output system (3).Fig. 3 is that the optoelectronic switch structure reaches by the dress synoptic diagram, it is by being loaded on watt-hour meter aluminium dish (16) next door, to receive the operation information of watt-hour meter (15), and by shielded lead (14), signal is passed to single-chip microcomputer, lead-in wire (14) head end is optoelectronic switch (5), and terminal is connected to wiring and closes on (24) interior optoelectronic switch binding post (5-4).When adopting the transmission-type optoelectronic switch (during Fig. 3-a), its optical axis will just in time drop on the garden of aluminium dish calibration aperture (18) running orbit on week, so that aperture (18) is when the crosscut optical axis, make the photoelectric tube (5-2) of optoelectronic switch (5) can receive the infrared light that infraluminescence pipe (5-1) is sent, and be transformed into a forward electric pulse and send to host computer system (1); When with reflective photoelectric switch (3-b), need to adjust reflective photoelectric switch (Fig. 3-front end face (5-3) b) and the relative distance of keyboard (16) garden week end face, infrared photocell (5-2) is on the optimum reception sensitive spot, when the lacquer mark (17) on all end faces in aluminium dish (16) garden forwards the position of optoelectronic switch (5) to, it has been blocked luminotron (5-1) and has shot to the light of photoelectric tube (5-2), thereby produces a negative sense electric impulse signal.Single-chip microcomputer (1) is accumulated the pulse number that collects, and when reaching the carry value of kilowatt-hour, just total electricity consumption recording areas is added one, simultaneously with the recording areas of corresponding time domain is also corresponding adds one (when adopting mutual inductor, but adding the multiple of mutual inductor); The power consumption that detects the user when single-chip microcomputer (1) is then sent sound and light alarm (3) during near the planned supply and use of electric power number of degrees, and the user is if untimelyly stop electricity consumption, and when reaching planned supply and use of electric power and counting, then cuts off user's power supply; Single-chip microcomputer (1) is shorter than scale load interpulse period during the time as if detecting, and the user has been in the overload electricity condition, also in time sends sound and light alarm signal (3); If this moment, the user in time pressed load, then report to the police and eliminate, otherwise surpass certain hour, then cut off user's power supply; In case take place to cut off the situation of user's power supply, can only submit a report asking for power supply department and be resetted and send.When single-chip microcomputer (1) detects instantaneous overload or accumulation overload, to send alerting signal, drive panel-mounted light emitting diode alarm lamp (3-1), simultaneously, after this signal is isolated by photoelectricity isolation or relay, draw by the outer taking alarm/outage binding post (3-2) that is positioned at the casing left side, so that the warning device of control duty room and cut-out power supply.
Program function block diagram of the present invention is as (Fig. 4).When powering on, carry out initialization earlier and set various initialization states, and send the apparent date, by the timing key or delay time and all can change first duty in 30 seconds, this worker's attitude is born and is provided with and the alignment time, when pressing the timing key, flash year position, by carry key year carry then, year was transferred on the required time; Press the timing key again, flash a month position, mixes up the moon successively. day. the time. divide, transfer timesharing except that minute carry, and stand-by time operation and will be worth zero clearing second, when mixing up score value, just start when walking again by the timing key.When first worker's attitude normally shows. divide. second the time, can make a second zero clearing by the carry key, if during zero clearing second, value was more than or equal to 30 seconds the time, divide the position to add 1; Less than the time, divide invariant position, can calibrate away time error with this function.After having transferred the time, change second duty over to by the set key, this worker's attitude is born the power information processing and is checked meter. reset. and zero clearing and ammeter counting. alarming value. the setting of mutual inductance multiple.When changing this worker's attitude for the first time over to, display shows zero entirely, flashes by the high word bit of set key, flashes a carry by the carry key.Successively six demonstrations are arranged to set fractional value again with the same manner on the numerical value with watt-hour meter synchronous operation. alarming value and mutual inductance multiple.When checking meter, key promptly obtains total electricity consumption by checking meter. the peak. and four groups of data of low ebb and conventional electricity consumption, when having copied table, press twice reset key with the zero clearing of electricity consumption data field.Mistake is just sent radix point to show with prompting whether really want zero clearing by reset key for the first time by the reset key obliterated data when preventing by other key; For the second time just carry out Protection Counter Functions by reset key, and clear radix point position.If mistake is pressed reset key, then will remove the memory position after 30 seconds automatically and extinguish radix point.Reset key is arranged in wiring closes, and when cutting off the power supply in case overload or electricity consumption beyond the planned quota take place, can only submit a report asking for power supply department Kaifeng and reset and send electricity, plays with this and impels user's purpose of electricity consumption according to plan.
Two states can be changed mutually by timing key and set key.The time reference of first worker's attitude comes self-timer to interrupt, and when it can support the calendar in 50 years to walk automatically, discerns big solar month of 30 days and profit year automatically; External interrupt is used in the data acquisition of second worker's attitude, also available mouthful of line sweep, and its effect is the same.
Claims (4)
1, a kind of watt-hour meter time-sharing recording and use controller for electric consumption, it comprises:
The rectangular housing (19) of the similar watt-hour meter shape of being manufactured by iron plate is equipped with charactron (4) on panel, keyboard (2), and alarm lamp (3-1) and printing interface (0), the panel bottom is to close (24) by the wiring that lead sealing (25) envelope is got up;
Circuit host computer system (1) adopts the CMOS single-chip microcomputer, or uses the CMOS memory under program, address latch and EPROM circumscribed single-chip microcomputer;
Keyboard (2) comprises timing. carry. and set. reset. zero clearing. six keys of checking meter are used to check meter. zero clearing. reset and calendar time is set. ammeter counting and other setting value; Wherein check meter and zero clearing two keys on panel, all the other quadruple linkages close in (24) in wiring;
Nixie display (4) is used for demonstration time and power information;
Electric power system (11) comprises the inlet wire wave filter, (10). transformer (9). and rectifier (8). voltage stabilizer (7) and external power interface (12);
It is characterized in that it also comprises:
Optoelectronic switch (5), watt-hour meter aluminium dish (16) is other by being loaded on, and is used to gather the operation information of watt-hour meter (15), and the optoelectronic switch binding post (5-1) in closing by wiring is delivered on the external interrupt or other mouthful line of single-chip microcomputer;
Boosting battery (13) and single-chip microcomputer (1) also are connected on the 5.7V output terminal of voltage stabilizer (7), during power failure, boosting battery (13) is single-chip microcomputer (1) power supply, be in floating charge state during normal power supply to replenish and to keep energy, be serially connected with isolating diode (6) between voltage stabilizer (7) and the boosting battery (13) and be used to prevent that the electric weight of boosting battery (13) when power supply has a power failure from pouring in down a chimney, the positive pole of isolating diode (6) is connected to voltage stabilizer (7) one ends;
Warning and outage when warning system (3) is used for overload or electricity consumption beyond the planned quota, light emitting diode alarm lamp (3-1) by the promotion of single-chip microcomputer (1) alarming line, be loaded on the panel, alarming line closes isolating or the outer taking alarm/outage binding post (3-2) of relay after isolating drawn through photoelectricity of (20) top by being positioned at battery;
Master routine (Fig. 4) is made up of the first and second worker's morphotype pieces and the initialization segments of parallel connection, and first worker's attitude is a calendar when walking, and for second worker's attitude provides time reference, second worker's attitude is that power information is handled;
Press the panel-mounted key of checking meter (2) when checking meter and on display (4), to read total electricity consumption, peak electricity consumption, four groups of data of valley power consumption and conventional electricity consumption.
2, as claim 1 described watt-hour meter time-sharing recording device, it is characterized in that: adopt the transmission-type optoelectronic switch (during Fig. 3-a), make the optical axis of optoelectronic switch (5) cutting part just locate the residing garden of watt-hour meter aluminium dish calibration aperture (18) movement locus on week, so that aluminium dish, (16) a moving week of revolution, guarantee the logical light of optoelectronic switch (5) once; Adopt reflective photoelectric switch (during Fig. 3-b), make all end faces in its operative end surface (5-3) and aluminium dish garden parallel and be positioned at and accept on the highest position of sensitivity.
3, it is characterized in that according to claim 1 described watt-hour meter time-sharing recording device: boosting battery (13) adopts all-sealed 4.8V rechargeable battery, and the battery in the casing left side of packing into closes in (20), and external power interface (12) can connect the 9-12V accumulator.
4, it is characterized in that according to claim 1 described watt-hour meter time-sharing recording device: program of the present invention (Fig. 4) comprising: first worker's attitude, two modules of second worker's attitude and initialization segments.First worker's attitude is the calendar travel time system, and it is had by timing and carry two key supports: timer interrupts, and when calendar was walked, the time was provided with and adjusts function; Second worker's attitude is the power information processing module, by set, carry, reset, zero clearing and the five key supports of checking meter, have: external interrupt, power information is handled, and checks meter, zero clearing, resets and ammeter reading and other setting value are set.Mutual inductor multiple etc.
Initialize routine is carried out in the back that powers on, and the required various original states of the system that sets by by the timing key or delayed time 30 seconds, change first worker's attitude over to, are used to be provided with calendar time, change second worker's attitude over to by the set key ammeter reading is set, the required aluminium dish revolution of every degree electricity.Mutual inductor multiple and other setting value change power information thereafter over to and handle, and receive the electric impulse signal of being sent here by optoelectronic switch (5), and single-chip microcomputer is according to the revolution of aluminium dish and whenever turn around the required time, can obtain after as calculated: total electricity consumption.The peak, whether four groups of data of low ebb and conventional electricity consumption and user are in overload or the electricity condition of using beyond the planned quota, when reaching alarming value, single-chip microcomputer is sent alerting signal, when reaching the outage setting value, will send the power supply that power-off signal cuts off the user, when operating in second worker's attitude, can change first worker's attitude over to by the timing key, when operating in first worker's attitude, promptly change second worker's attitude over to by the set key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93102177 CN1091833A (en) | 1993-03-02 | 1993-03-02 | Watt-hour meter time-sharing recording and load control unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93102177 CN1091833A (en) | 1993-03-02 | 1993-03-02 | Watt-hour meter time-sharing recording and load control unit |
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| Publication Number | Publication Date |
|---|---|
| CN1091833A true CN1091833A (en) | 1994-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93102177 Pending CN1091833A (en) | 1993-03-02 | 1993-03-02 | Watt-hour meter time-sharing recording and load control unit |
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| Country | Link |
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| CN (1) | CN1091833A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102360517A (en) * | 2011-07-28 | 2012-02-22 | 深圳市金正方科技有限公司 | Electricity-selling management device and load switch control circuit thereof |
| CN101553736B (en) * | 2006-10-02 | 2012-10-10 | 美国亚德诺半导体公司 | Integrated energy metering system |
| CN104081213A (en) * | 2012-02-13 | 2014-10-01 | 松下电器产业株式会社 | Power measuring apparatus |
-
1993
- 1993-03-02 CN CN 93102177 patent/CN1091833A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101553736B (en) * | 2006-10-02 | 2012-10-10 | 美国亚德诺半导体公司 | Integrated energy metering system |
| CN102360517A (en) * | 2011-07-28 | 2012-02-22 | 深圳市金正方科技有限公司 | Electricity-selling management device and load switch control circuit thereof |
| CN104081213A (en) * | 2012-02-13 | 2014-10-01 | 松下电器产业株式会社 | Power measuring apparatus |
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