CN2290941Y - Intelligence integratly metering lighting distributing box - Google Patents

Abstract

The utility model relates to an intelligence integratly metering lighting distributing box, which takes the MCS processing system as the core and selects concrete input channel and signal transmission of current sampling and voltage sampling of a user by an electronic switch (1). The MCS system can realize calculation, accumulation and store processing of electricity consumption of a plurality of users and can also open specific number displaying and tripping executing command channels by an electronic switch (2) to carry out displaying and tripping. The utility model has the advantages of complete function, advanced technology and high work efficiency.

Description

Intelligent centralized measure light distribution box

The utility model relates to a kind of power distribution equipment of the usefulness of powering, and is specially the light distribution box that a kind of multi-user power-driven time-sharing measurement and many rates are calculated.

Existing domestic lighting distribution pattern all adopts each household configuration induction type single-phase watt-hour meter, one group of switch and is equipped with a casing again and embeds within the walls, there is following shortcoming in this scheme: (1) induction meter measuring accuracy is low, energy consumption is big, time-sharing measurement can not be carried out, more the electricity charge that to pay in every month can not be directly calculated; (2) meter reading personnel must check meter, add up, calculate by hand from door to door, and the manpower time waste is serious, inefficiency; (3) existing this pattern is to pay the fees after the electricity consumption of user elder generation, thereby the phenomenon of owing electricity charges in various degree appears in some users; (4) kilowatt-hour meter of each household, switch and supporting casing, volume is big, cost is high, installation is difficult, great in constructing amount; (5) potential stealing factor.

The purpose of the utility model aims to provide a kind of singlechip technology that adopts and realizes the multi-user power-driven time-sharing measurement, directly calculates the intelligent centralized measure light distribution box that electricity charge printout also can be carried out scientific management and safeguard protection to power consumption, excess load by the different rates of different periods.

Technical solution of the present utility model is: this intelligent centralized measure light distribution box has current sampling circuit, voltage sample circuit, electronic switch (1), electronic switch (2), the MCS treatment system, the keyboard input circuit, digital display circuit and execution trip circuit, each user's the current sampling circuit and the voltage sample circuit of three phase mains connect the input of electronic switch (1) simultaneously, single-chip microcomputer MCS treatment system output channel selects signal to be connected to electronic switch (1), make electronic switch (1) select concrete input channel, and the signal of current sampling circuit and voltage sample circuit is transferred to the MCS treatment system, calculate accumulative total, stores processor, MCS treatment system output channel is selected signal and demonstration, the transmission of execution signal, make electronic switch (2) open certain concrete passage, and through behind the electronic switch (2), idsplay order connects digital display circuit, show, trip command connects carries out trip circuit, trips.

Fig. 1 is the utility model theory diagram.

Fig. 2, Fig. 3 are the utility model circuit diagram.

Be described in further detail below in conjunction with the enforcement of accompanying drawing technical solution of the present utility model:

Referring to Fig. 1, power supply is by K switch A ₁-KAn, KB ₁-KBn, KC ₁-KCn organizes with A respectively, the B group, C group user links to each other, between each particular user and the corresponding switch current sampling circuit is arranged all, single-chip microcomputer MCS treatment system is selected the concrete input channel of electronic switch (1), make the signal of this passage correspondence be transferred to the MCS treatment system by electronic switch (1), carry out after the analog-to-digital conversion data processing, storage, the principle that the MCS treatment system is handled according to acquisition time, each particular user is carried out current sample to be handled, deposit in the MCS treatment system, then to the voltage sampling of this user's correspondence, handle, calculate corresponding power factor (PF) this moment, after depositing these parameters in the MCS memory, calculate this user in certain period time interval power consumption and it is deposited in the MCS memory, user's electric weight memory cell of MCS treatment system will be stored the power consumption aggregate-value that calculates in each time interval.MCS treatment system sampling, calculate, accumulative total, stored a certain particular user electricity consumption value after, the MCS treatment system is carried out input channel again and is selected, realization is sampled, calculates, adds up, is stored another particular user, and so circulation is carried out centralized measure to each user.Administrative staff by the keyboard input period adjust, valuation rate, each user power utilization figureofmerit setting of different periods and electricity consumption data and the electricity charge printout that realizes each user.Be furnished with electronic password lock in the MCS treatment system, do not know password, can't operate.

Referring to Fig. 2, Fig. 3, with integrated circuit U ₈, U ₉, U ₁₀, U ₁₁And nixie display DISPLAY and annexation formation keyboard-display circuit, wherein U ₈Be the keyboard special display chip.With integrated circuit U ₁, U ₂, U ₃, U ₄, U ₅, U ₆, U ₇Be main and annexation formation MCS treatment system, with U ₁₂, U ₁₃, U ₁₄, U ₁₅, U ₁₆, U ₁₇, U ₁₈, U ₁₉These integrated circuits and annexation thereof constitute electronic switch (1), and these 4051 chips are from 8 input (X ₀, X ₁, X ₂, X ₃, X ₄, X ₅, X ₆, X ₇) in choose one tunnel output, as for which by gating, then by the digital signal level combination decision of A, the B of this chip, three pins of C, that is by single-chip microcomputer U ₁Channel selecting signal decision.With integrated circuit U ₂₂, U ₂₃Be main electronic switch (2), the integrated circuit U of forming ₂₄, U ₂₆, U ₂₈And annexation output trip command, make corresponding subscriber switch L tripping operation, integrated circuit U ₂₅, U ₂₇, U ₂₉Then export the tripping operation shows signal, by light-emitting diode L ₁Show:

Circuit diagram 2 characterizes out MCS treatment system Single-chip Controlling core system, in Fig. 2, with U ₁Chip is a core, P ₀Existing data input and output of cause for gossip and low eight bit address rails go out P ₂The high eight-bit of the defeated address of oral instructions, P ₁Mouth is as the address selection line of a certain particular user in printer control signal, acknowledge signal line and multi-user's the centralized detecting, integrated circuit U ₂As U ₁P ₀Buffer, increase to drive the ability of load, integrated circuit U ₃As latch, to realize P ₀That hangs down eight bit address latchs integrated circuit U ₄Be the chip of programming, all the working procedure of system is stored integrated circuit U by it ₆As the data buffer in the metering testing process.Integrated circuit U ₆Then,, also can forever preserve information, integrated circuit U even have a power failure as the user's data register ₇As the output of chip selection signal line, realize U ₁Address space distribute integrated circuit U ₈Be keyboard, data, demonstration special chip, integrated circuit U ₉Be three-eight decoders, realization shows the open-minded of position, U to certain of display unit DISPLAY ₈OUTA and OUTB export as video data, with U ₉Cooperate and realize U ₉The a certain concrete numeral of being chosen of position that shows shows integrated circuit U ₁₀And U ₁₁Be respectively the buffering follower, to realize increasing the purpose of output driving force.Crystal oscillator XTAL and capacitor C ₁, C ₂Cooperating provides U ₁The clock oscillation benchmark, with door AND ₁Output control U ₂As receive or transmission buffer selection, S ₁With C ₃, R ₂, R ₃Cooperate and realize resetting the MCS system.

Circuit diagram 3 has been described the principle of multi-user's centralized measure collection with performance element.Integrated circuit U ₂₀, U ₂₁, U ₂₂, U ₂₃Be three-eight decoders, realize the sheet choosing, integrated circuit U ₁₂, U ₁₃, U ₁₄, U ₁₅, U ₁₆, U ₁₇, U ₁₈, U ₁₉Be eight to select a multi-channel electronic switch, any one measured signal is by U ₁₉The 3rd pin output, U ₁₂, U ₁₃, U ₁₄, U ₁₅, U ₁₆, U ₁₇, U ₁₈These seven variable connectors with tested user be divided into eight be seven groups of a unit, every group X ₀, X ₁, X ₂, X ₃, X ₄, X ₅, X ₆, X ₇The subscriber signal that is this group is gathered input, and X eight selects an electronic switch channel output end.The P of MCS ₁The P of mouth _1-5, P _1-6, P _1-7Certain concrete unit of certain group is selected in the output decision for use.Because seven groups output X is connected to U respectively ₁₉Input X ₀, X ₁, X ₂, X ₃, X ₄, X ₅, X ₆, U ₁₉A, B, C be connected to U among Fig. 2 ₃(373) address latch output Q ₀, Q ₁, Q ₂, the U in Fig. 2 ₁During OPADD information, just determined certain selected particular user.Each is the detection loop of corresponding eight subscriber units of each group with gathering current information by a current transformer per family shown in the upper right corner among Fig. 3.U ₁₉Export the signal of telecommunication QA of certain particular user, through transport and placing device A ₁, by integrated circuit U ₃₀After again through transport and placing device A ₂, A ₃And the precise rectification circuit of respective peripheral circuit composition, signal is exported to integrated circuit U ₃₁Input.Transport and placing device A ₄, A ₅, A ₆And integrated circuit U ₃₂, MC1403 and AND ₁Form accurate double integration circuit and realize the A/D conversion.With signal of telecommunication QA through amplifying and analog-to-digital conversion is handled transport and placing device A after becoming binary number to data by MCS and CPU ₇, A ₈, A ₉, A ₁₀And integrated circuit U ₃₃, AND ₂Form the element circuit that detects the customer charge power factor (PF).The CPU of MCS treatment system collects integrated circuit U ₃₄The signal of telecommunication of output, leave it in corresponding electric current, information of voltage memory cell, power factor (PF) memory cell, carry out computing then, again the result is left in corresponding power storage unit, finished metering, sent instruction by the MCS system again thereafter, selected another particular user to finish said process according to preset program to certain particular user, multi-user's centralized detecting metering is finished in circulation in turn.

In case the power consumption index that electricity consumption accumulative total surpasses administrative staff's input appears in certain user, then the CPU of MCS system chooses the pairing switch circuit controls of this user unit, make the light-emitting diode conducting of this unit correspondence, presenting light signal shows, make the tripping coil conduction of this subscriber switch of control simultaneously, switch trip, in Fig. 3, constitute the demonstration of tripping operation light and tripping operation control unit of user group (8 electricity consumers) by two latchs 377, be that tripping operation control loop and the light-emitting diode that each electricity consumer is isolated corresponding to a photoelectricity indicates the loop when the CPU desire is cut off the power supply trip operation to certain user, at first CPU sends chip selection signal, makes U ₂₀Corresponding Y ₁, Y ₂Timesharing presents low level, makes it choose U ₂₂Or U ₂₃Effectively, send address instruction by CPU again, U ₂₂, U ₂₃Be controlled by the incoming level of A, B, C, thereby choose certain concrete LS377 chip, the data input pin of this chip is connected on the data/address bus of MCS system, accepts the data that the CPU transmission comes, and carries out certain user's trip avoidance function and luminous demonstration.

The utility model is compared with existing technology, and has changed the prior art each household and has adopted a single-phase watt-hour meter, one group Switch, distributing box embed original, dispersion, backward state within the walls, have overcome the induction meter metering The defective that precision is low, energy consumption is big, can not realize time-sharing measurement, directly calculate has changed traditional craft receipts of checking meter Take the practice. The utility model adopts singlechip technology to realize multi-user's electricity consumption time-sharing measurement, according to the different periods The electricity charge that different rates are directly calculated each user, and each user that can arrange according to management of power use personnel use power consumption Index limits each user's power consumption, also can realize limited load control, in case user power utilization accumulative total surpasses power consumption index Or user's actual load surpasses setting valve, namely carries out automatic trip, and user's power turn-on voluntarily, this reality With novel power consumption, the electricity charge printout that can also realize each resident, and can realize overcurrent, short circuit, The multifunction protection such as overvoltage, electric leakage. The utility model is multiple functional, advanced technology, high efficiency, is China The management of power use provides a kind of new equipment, new technology, should vigorously promote the use.

Claims (3)

1, a kind of intelligent centralized measure light distribution box, it is characterized in that having current sampling circuit, voltage sample circuit, electronic switch (1), electronic switch (2), the MCS treatment system, the keyboard input circuit, digital display circuit and execution trip circuit, each user's the current sampling circuit and the voltage sample circuit of three phase mains connect the input of electronic switch (1) simultaneously, single-chip microcomputer MCS treatment system output channel selects signal to be connected to electronic switch (1), make electronic switch (1) select concrete input channel, and current sampling circuit and voltage sample circuit signal be transferred to the MCS treatment system, calculate, accumulative total, stores processor, MCS treatment system output channel is selected signal and shows to carry out the signal transmission, make electronic switch (2) open its concrete passage, and through behind the electronic switch (2), idsplay order connects digital display circuit, show, trip command connects carries out trip circuit, trips.

2, intelligent centralized measure light distribution box according to claim 1, these 4051 chips that it is characterized in that electronic switch (1) are for importing (X from 8 ₀, X ₁, X ₂, X ₃, X ₄, X ₅, X ₆, X ₇) in choose one tunnel output, its gating is by the digital signal level group combination decision of A, the B of this chip, three pins of C, that is by single-chip microcomputer (U ₁) channel selecting signal decision.

3, intelligent centralized measure light distribution box according to claim 1 is characterized in that MCS treatment system single-chip microcomputer is with U ₁Be core, P ₁The address selection line at a certain certain body and function family in the centralized detecting as printer control signal, acknowledge signal line and multi-user.

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