CN2290058Y - Permanent parameter installation apparatus for intelligence watt-hour meter - Google Patents

Abstract

The utility model relates to a permanent parameter setting device for an intelligent watt-hour meter, which comprises an I/O reading and writing device 1, a memorizer A2, a buffer 3, an arithmetic device 4, a memorizer B5, a switch 6, etc. The new state or old state of the intelligent watt-hour meter can be compared, identified, and judged through the arithmetic device 4, and the switch 6 can be controlled to be switched on or switched off correspondingly, so that permanent parameter information in the buffer 3 can be ensured to be written in the memorizer A2 or not through the switch 6. The utility model has the advantages of convenience for setting the permanent parameter, impossibility of setting mistakenly, etc.

Description

Permanent parameter set-up device for intelligent kilowatt-hour meter

The utility model relates to a kind of tariff meter that is used to measure the time integral of electric power or electric current, particularly a kind of permanent parameter set-up device for intelligent kilowatt-hour meter, and it is applied in the intelligent kilowatt-hour meter computer controller.

Intelligent kilowatt-hour meter comprises watt-hour meter and the computer controller of finishing the electric consumption surveying work, in the prior art, electric industry department is when replacing old watt-hour meter with intelligent kilowatt-hour meter, generally no longer utilize old watt-hour meter, but adopt new watt-hour meter with as the appropriate section in the intelligent kilowatt-hour meter, its reason is to guarantee the unification of the parts watt-hour meter s main working parameters in the intelligent kilowatt-hour meter, in order to this s main working parameters (for example every degree electricity with watt-hour meter turn-take several quantitative corresponding relations) as before intelligent kilowatt-hour meter is not installed, being arranged in the respective memory in the computer controller once the permanent parameter that can not change is set.And old watt-hour meter is because user's difference, its model, s main working parameters varies, as utilizing old watt-hour meter as the appropriate section in the intelligent kilowatt-hour meter, must in the face of directly being set to computer by the I/O read write line with permanent parameter, each computer controller control the storer A that makes in the device by supervisor, setting up procedure, must be at the s main working parameters of the old watt-hour meter of each household and check the number each computer controller is set, then the computer controller that will be provided with again assembles intelligent kilowatt-hour meter to the user place with its old watt-hour meter of checking the number, this that the mode of installing of afterwards checking the number is set earlier is very loaded down with trivial details, very easily goes wrong.

The purpose of this utility model be to overcome prior art can weak point, and provide a kind of being convenient to that computer controller is carried out the permanent parameter setting, and be provided with conveniently, can the wrong permanent parameter set-up device for intelligent kilowatt-hour meter that is provided with.

The purpose of this utility model realizes by following approach.

Permanent parameter set-up device for intelligent kilowatt-hour meter, comprise I/O read write line and storer, also include impact damper, has computing, relatively, the arithmetical unit of recognition function, storer B and switch etc., the impact damper input end is connected with the I/O read write line, output terminal then is connected with storer B with storer A respectively by switch, arithmetical unit then respectively with storer B, switch, and impact damper connects, store the identification signal of symbol intelligent kilowatt-hour meter among the storer B for " new or old " state, then preset in the arithmetical unit and intelligent kilowatt-hour meter " newly " state or the corresponding reference signal of " old " state, above-mentioned identification signal and reference signal compare in arithmetical unit, when the credit card that carries " coin " value information and permanent parameter inserts the I/O read write line, when being " newly " state through relatively judging intelligent kilowatt-hour meter as arithmetical unit, then send three groups of signals, give switch respectively, impact damper and storer B are open-minded with gauge tap, the internal memory signal that impact damper send the permanent parameter data and rewrites storer B to storer A by switch,, when judging that relatively intelligent kilowatt-hour meter is the state of " old ", then send signal and open circuit as arithmetical unit to control it to switch.

When the I/O read write line in the intelligent kilowatt-hour meter was carried the credit card insertion of permanent parameter for the first time, this intelligent kilowatt-hour meter was new table, and thereafter, the credit card inserts the I/O read write line at every turn, and intelligent kilowatt-hour meter is old table.Permanent parameter promptly can not be changed once being provided with, this by rewrite the identification signal among the storer B, make storer A is set after, switch is in off state all the time, can't rewrite the signal content among the storer A.

The purpose of this utility model can also realize by following approach.

The I/O read write line is a kind of integrated circuit (IC) card, and arithmetical unit and impact damper all are included among the CPU that a kind of model is 16C57, and switch is the software program switch among a kind of CPU of being stored in, and storer A and storer B then are the E of 24C01 by model ²PROM serves as.

In sum, the utility model has following advantage compared to existing technology: change to be provided with earlier in the prior art afterwards to be installed as to install afterwards earlier and be provided with, need not carry out the permanent parameter setting to computer controller face-to-face by supervisor, but the computer controller that permanent parameter will be set arbitrarily earlier is combined into intelligent kilowatt-hour meter to the user place with old kilsyth basalt, the credit card that then by the user supervisor setting is carried information such as permanent parameter inserts the employed intelligent kilowatt-hour meter computer controller of user permanent parameter and I/O read write line in the device is set to finish the work of setting, like this, by the user the own intelligent kilowatt-hour meter that is had being carried out the oneself is provided with, not only setting up procedure is extremely convenient, and can not go wrong.

Accompanying drawing 1 is the utility model most preferred embodiment functional-block diagram.

Accompanying drawing 2 is the utility model most preferred embodiment circuit diagrams.

Below we carry out more detailed description to the utility model in conjunction with the accompanying drawings.

Most preferred embodiment:

With reference to accompanying drawing 1 and accompanying drawing 2, permanent parameter set-up device for intelligent kilowatt-hour meter, by I/O read write line 1, storer A2, impact damper 3, arithmetical unit 4, compositions such as storer B5 and switch 6, impact damper 3 input ends are connected with I/O read write line 1, output terminal then is connected with storer B5 with storer A2 respectively by switch 6,4 of arithmetical unit respectively with storer B5, switch 6, impact damper 3 and I/O read write line 1 connect, store the identification signal of symbol intelligent kilowatt-hour meter among the storer B5 for " newly " or " old " state, has computing, relatively, then preset in the arithmetical unit 4 of recognition function and the corresponding reference signal of intelligent kilowatt-hour meter " newly " state, above-mentioned identification signal and reference signal compare in arithmetical unit 4, when the credit card that carries " coin " value information and permanent parameter inserts I/O read write line 1, the arithmetical unit 4 that is triggered is when judging that relatively intelligent kilowatt-hour meter is " newly " state, then send three groups of signals and give switch 6 respectively, impact damper 3 and storer B5 are so that gauge tap 6 is open-minded respectively, impact damper 3 send the permanent parameter data by switch 6 to storer A2, and the internal memory signal among the rewriting storer B5,, when judging that relatively intelligent kilowatt-hour meter is " old " state, then send signal and open circuit as arithmetical unit 4 to control it to switch 6.

With reference to accompanying drawing 2, I/O read write line 1 is a kind of integrated circuit (IC) card, and corresponding credit card is a kind of integrated circuit IC-card, and arithmetical unit 4 and impact damper 3 all are included among the CPU that a kind of model is 16C57.Switch 6 is the software program switches among a kind of CPU of being stored in, and storer A2 and storer B5 then are the E of 24C01 by model ²PROM serves as." DE " in the IC-card interface, " DA ", " CLK " and " CS " joint respectively with CPU in " RB0 ", " RA0 ", " RA1 " and corresponding connection of " RA3 " joint; And E ²" 1 " among the PROM, " 2 ", " 3 " joint then respectively with CPU in " RA2 ", " RA1 ", the corresponding connection of " RA0 " joint." MCLR " joint among the CPU is connected with its peripheral reset circuit; " CLK0 " among the CPU is connected with its peripheral clock oscillation circuit with " CLK1 " joint; " RB4 " among the CPU～" RB7 " joint and " RC0 "～" RC6 " joint is connected with its peripheral display circuit.Civil power is behind transformer, bridge rectifier circuit, filtering circuit and three terminal regulator and be converted to+the 5V direct current, with as IC-card interface, E ²The working power of PROM, CPU and reset circuit and clock oscillation circuit.

Claims (2)

1. permanent parameter set-up device for intelligent kilowatt-hour meter, comprise I/O read write line (1) and storer A (2), it is characterized in that, also include impact damper (3), has computing, relatively, the arithmetical unit of recognition function (4), storer B (5) and switch (6), impact damper (3) input end is connected with I/O read write line (1), output terminal then is connected with storer B (15) with storer A (2) respectively by switch (6), arithmetical unit (4) then respectively with storer B (5), switch (6) and impact damper (3) connect, store the identification signal of symbol intelligent kilowatt-hour meter among the storer B (5) for " new or old " state, then preset in the arithmetical unit (4) and intelligent kilowatt-hour meter " newly " state or the corresponding reference signal of " old " state, above-mentioned identification signal and reference signal compare in arithmetical unit (4), when the credit card that carries " coin " value information and permanent parameter inserts I/O read write line (1), when being " newly " state through relatively judging intelligent kilowatt-hour meter as arithmetical unit (4), then send three groups of signals, give switch (6) respectively, impact damper (3) and storer B (5) are so that gauge tap (6) is open-minded respectively, the internal memory signal that impact damper (3) send the permanent parameter data and rewrites storer B (5) to storer A (2) by switch (6),, when judging that relatively intelligent kilowatt-hour meter is the state of " old ", then send signal and open circuit as arithmetical unit (4) to control it to switch (6).

2. permanent parameter set-up device for intelligent kilowatt-hour meter according to claim 1, it is characterized in that, I/O read write line (1) is a kind of integrated circuit (IC) card, arithmetical unit (4) and impact damper (3) all are included among the CPU that a kind of model is 16C57, switch (6) is the software program switch among a kind of CPU of being stored in, and storer A (2) and storer B (5) then are the E of 24C01 by model ²PROM serves as.