One kind can be used for control multifunctional intellectual electric instrumentTechnical field
A kind of electric instrument is the utility model is related to, is specifically that one kind can be used for control multifunctional intellectual electric instrument.
Background technology
One kind can be used for control multifunctional intellectual electric instrument, including display and key-press module, communication module, storage chipCPU, input/output interface circuit, the special metering IC A, the special metering IC B, voltage x current input signal processing circuit A, electricityCurrent voltage input signal processing circuit B and external voltage current input module, it is characterised in that the CPU connects display respectivelyWith key-press module, communication module, storage chip CPU, input/output interface circuit, the special metering IC A and the special metering ICB, the special metering IC A are also connected with voltage x current input signal processing circuit A, and it is defeated that the special metering IC B is also connected with voltage x currentEnter signal processing circuit B, input signal processing circuit A is also connected with external voltage current input module, input signal processing circuit BIt is also connected with external voltage current input module.
The content of the invention
The purpose of this utility model, which is to provide, a kind of simple in construction, easy to use can be used for control multifunctional intellectual electricityPower instrument, to solve the problems mentioned in the above background technology.
To achieve the above object, the utility model provides following technical scheme：
One kind can be used for control multifunctional intellectual electric instrument, including display and key-press module, communication module, storage chipFirst CPU, the 2nd CPU, the special metering IC, voltage x current input signal processing circuit and external control interface circuit, it is describedFirst CPU connects display and key-press module, communication module, storage chip, the 2nd CPU and the special metering IC, special meter respectivelyAmount chip is also connected with voltage x current input signal processing circuit, and the 2nd CPU is also respectively connected with voltage x current input signal processing electricityRoad and external control interface circuit.
As preferred scheme of the present utility model：First CPU and the 2nd CPU is single-chip microcomputer.
Compared with prior art, the beneficial effects of the utility model are：The utility model can be used for controlling multifunctional intellectualElectric instrument not only ensure that the precision of metering but also provided the quick of electric parameter detection using the pattern of dual processors and computation chipProperty and real-time, to need to provide Microsecond grade according to the occasion that the electric parameter that is detected quickly protect and control, andThe rapidity and protectiveness of all wave scales so that the intelligent electric instrument can provide faster more accurately for the control system of outsideInformation and control.
Brief description of the drawings
Fig. 1 is system architecture diagram of the present utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried outClearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than wholeEmbodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is madeThe every other embodiment obtained, belong to the scope of the utility model protection.
Referring to Fig. 1, a kind of can be used for control multifunctional intellectual electric instrument, including display and key-press module, communication mouldBlock, the CPU of storage chip the first, the 2nd CPU, the special metering IC, voltage x current input signal processing circuit and outside control connectMouth circuit, the first CPU connect display and key-press module, communication module, storage chip, the 2nd CPU and special measuring respectivelyChip, the special metering IC are also connected with voltage x current input signal processing circuit, and the 2nd CPU is also respectively connected with voltage x current inputSignal processing circuit and external control interface circuit.
First CPU and the 2nd CPU is single-chip microcomputer.
Operation principle of the present utility model is：The utility model uses dual processors+the special metering IC pattern, such as Fig. 1 institutesShow, CPU1 be used for external parameter set, display, storage and external communication etc., and when upper electric, to CPU2 and special measuring corePiece writes calibration parameter and control measurement related data；The special metering IC is used for the precision for ensureing metering；And CPU2 is used for soonThe electric parameter detection of speed, quickly detect and protect controlling according to the pattern of setting, control the interface circuit of outside, ensureDetection and the real-time of protection.