CN2435745Y - Intelligent optical indicator/digital double-display instrument - Google Patents

Abstract

The utility model relates to an automatic instrument, particularly an intelligent optical indicator/digital double-display instrument which comprises a sampling circuit, a microprocessor, a display driving circuit, a light indicator display luminescent strip and a digitron display. The utility model is a new generation of electronic instrument indicator having wide purpose, and can replace a moving coil instrument as well as a digital instrument. The indication of an optical indicator main displays monitoring segment parameters, which makes the resolution of the indicator display higher and the position change more obvious; simultaneously, the whole range digital display makes instrument-reading more accurate; online check, peak value memory, power-fail protection and other processing functions are added to the instrument by the intelligent processing, and the functions remote communication and networking are also added to the instrument.

Description

The intelligence light pointer/two apparent instrument of numeral

The utility model belongs to instrument and meter for automation.

At present, the display format of instrument mainly contains two kinds, and a kind of is pointer-type, and another kind is digital, and they respectively have relative merits.Pointer header comes into plain view to the variation tendency that is instructed to parameter, but its shock resistance is poor, and machinery inertial is big, to the unable reaction of very fast variation of parameter, reading out of true; Though digital gauge outfit reading is directly perceived, accurately, the variation tendency that it can not display parameter, particularly in the industry spot multiparameter, when the multilist head showed, more difficult which parameter of distinguishing was increasing, and which parameter is reducing.

The purpose of this utility model provides the two apparent instrument of a kind of intelligent light pointer/numeral, not only desirable acute pyogenic infection of finger tip pin type moving-coil table but also desirable algebraically word table.

The purpose of this utility model realizes in the following manner: the two apparent instrument of intelligent light pointer/numeral, comprise that sample circuit (1), microprocessor (2), display driver circuit (3), light pointer show light-emitting section (4) and charactron display (5), microprocessor (2) input end is connected with function key (6) with sample circuit (1), microprocessor (2) output terminal connects display driver circuit (3), off-limit alarm circuit (7), serial communication circuit (8), and display driver circuit (3) drives the light pointer and shows light-emitting section (4) and charactron display (5).

Described sample circuit (1) is by A/D converter (IC1), time base circuit (IC2) and peripheral circuit are formed, display driver circuit (3) is by decimal decoding circuit (IC7) and programmable logic chip (IC6, IC8, IC9) and 4 groups altogether the altogether positive common port driving circuits of positive charactrons form, microprocessor (2) output terminal connects programmable logic chip (IC6 respectively, IC8, IC9) input end, chip (IC8) output terminal and chip (IC6) output terminal export 10 * 10 input ends that the light pointer shows light-emitting section (4) to through decimal decoding circuit (IC7), chip (IC9) output terminal connects the input end of 4 charactrons (5), 4 groups are total to positive charactron and are total to positive common port driving circuit by code translator (IC10), (T8～T15) forms triode, and (T8～T15) driving circuit drives the common oedoeagus of 4 charactrons (5) to microprocessor (2) output terminal successively through code translator (IC10) and triode.

The utility model is electronic instrument indicator of new generation, and is of many uses, not only can replace moving-coil table but also desirable algebraically word table.The main supervision section parameter that shows of light pointer indication makes that the pointer display resolution is higher, and change in location is more obvious; Numeral is omnidistance simultaneously shows, makes meter reading more accurate; Intelligent treatment makes table increase processing capacities such as on-line testing, peak value memory, power down protection; The telecommunication and the networking function of instrument have also been increased.The light pointer has the following advantages: response speed is fast, and light pointer response speed is in nanosecond; Shock resistance is strong, and is shock-resistant; Volume is little, is convenient to install side by side in a large number; Environmental performance is good, can work under high temperature or low temperature; Adjustment is convenient; Be easy to Based Intelligent Control.With moving-coil epiphase ratio, antidetonation, diamagnetic, all there is remarkable advantages the aspects such as comfort level in the intuitive of reading, accuracy, adjustment.These advantages of light pointer instrument more and more are familiar with by users and are accepted, thereby the application of light pointer instrument is developed rapidly, and become the up-to-date trend of contemporary international instrument display mode.To become the renewal product in the Displaying Meter.The utility model cooperates with thermopair, thermal resistance, Hall pressure transmitter, long-range electric resistance manometer and various linear transmitter, can be used for indication, adjusting or the automatically warning of industries realizations such as metallurgy, electric power, oil, chemical industry, machine-building, thermal treatment, light industry, weaving to various technological parameters such as pressure, temperature, flow, liquid level, voltage, electric currents.

Describe the utility model embodiment in detail below in conjunction with accompanying drawing.

Fig. 1 is the utility model theory diagram.

Fig. 2 is the utility model sample circuit, functional circuit schematic diagram.

The intelligence light pointer/two apparent instrument of numeral, comprise sample circuit 1, microprocessor 2, display driver circuit 3, the light pointer shows light-emitting section 4 and charactron display 5, described sample circuit 1 is by A/D converter IC1, time base circuit IC2 and peripheral circuit are formed, the IN+ of A/D converter IC1 is connected with input signal with the IN-end, its input signal is voltage signal or current signal, the digital signal that A/D converter IC1 becomes microprocessor IC4 to handle the analog signal conversion of 4～20mA or 0～2V, the STR of A/D converter IC1 is connected INT1 and the T0 end of microprocessor IC4 with the R/H end, the B1 of A/D converter IC1～B4 end connects P14～17 ends of microprocessor IC4, the CL end of A/D converter IC1 connects time base circuit IC2, time base circuit IC2 provides A/D converter IC1 the major clock of work, and A/D converter IC1 conversion accuracy is 14 bits.Signal enters microprocessor 2 after sample circuit 1 sampling, microprocessor IC4 to data calculate, analyze, processing, function key identification etc.Function key T2 connects the INT0 end of microprocessor IC4, function key S2, S3, S4 connect P23, P24, the P25 end of microprocessor IC4, the T2 key is used for function setting, as " on/lower limit set ", " range setting ", " light rise/the light end is set ", " type selecting ", " password " etc., the S2 key is used for parameter to be increased, the S3 key is used for parameter and reduces, and the S4 key is used for parameter and is provided with definite.These function keys can remove to finish corresponding function by microprocessor IC4 again by microprocessor IC4 identification.The P10 of microprocessor～13 ends connect I ²C serial memory IC3, memory IC3 can carry out the memory of significant data, realizes power-down protection.The RXD of microprocessor IC4 is connected serial communication circuit IC5 with the TXD end, finishes between field instrumentation and the pulpit computing machine and carries out two-way communication, receives/send out data.The P20 of microprocessor IC4 is connected off-limit alarm circuit 7 with the P21 end, and off-limit alarm circuit 7 is made up of last/lower limit alarm lamp L1/L2 and last/lower limit alarm relay RY1/RY2.The P21 of microprocessor IC4, P20 end is through triode T2, T3 conducting alarm lamp L1, L2, the P20 of microprocessor IC4, P21 end is through triode T4 and T5, T6 and T7 turn-on relay RY1, RY2, after parameter was out-of-limit, microprocessor IC4 notice off-limit alarm circuit 7 carried out off-limit alarm.The P00 of microprocessor IC4～P07 end connects display driver circuit 3.Display driver circuit 3 is by decimal decoder IC7, programmable logic chip IC6, IC8, IC9 and 4 groups of altogether positive common port driving circuits of common positive charactron are formed, microprocessor IC4 output terminal P00～P07 connects programmable logic chip IC6 respectively, IC8, the IC9 input end, chip IC 6 output terminals I/O4～I/O7 connects the input end A of decimal decoder IC7, B, C, D, the output terminal 0～9 of decimal decoder IC7 and output terminal I/O0～I/O7 of programmable logic chip IC8 are connected to 10 * 10 input ends that the light pointer shows light-emitting section POL, the demonstration of light pointer is made of 100 lines (10 * 10) light-emitting section POL, this light-emitting section is made up of 10 sections, and each section is made up of 10 lines, and 10 lines in each section are that common the moon (or positive altogether) connects.It is in alignment to allow 10 sections be arranged in order on manufacturing process, allows be shown parameter and give me a little the light pointer by driving circuit, and the amplitude of signal is big more, and the light pointer position of being lighted is far away more, and the two is linear.Data after display driver circuit 3 will be handled from microprocessor 2 are carried out logical conversion, send charactron display 5 and light pointer to show light-emitting section 4 respectively by dynamic scan mode.Display driver circuit 3 shows that light-emitting section 4 provides 10 * 10 piece of digital signals for the light pointer.4 groups of common positive charactrons are total to positive common port driving circuit and are made up of code translator IC10, triode T8～T15, the RD end of microprocessor IC4 and WR end are through code translator IC10 output terminal Y0～Y3, connect triode T8～T15 driving circuit successively, drive 4 charactrons oedoeagus altogether successively, the IC9 output terminal connects the input end A～H of 4 charactrons, and 4 charactrons show each bit value successively.

Claims (2)

1, the two apparent instrument of intelligent light pointer/numeral, comprise that sample circuit (1), microprocessor (2), display driver circuit (3), light pointer show light-emitting section (4) and charactron display (5), it is characterized in that: microprocessor (2) input end is connected with function key (6) with sample circuit (1), microprocessor (2) output terminal connects display driver circuit (3), off-limit alarm circuit (7), serial communication circuit (8), and display driver circuit (3) drives the light pointer and shows light-emitting section (4) and charactron display (5).

2, the two apparent instrument of intelligent light pointer as claimed in claim 1/numeral, it is characterized in that: described sample circuit (1) is by A/D converter (IC1), time base circuit (IC2) and peripheral circuit are formed, display driver circuit (3) is by decimal decoding circuit (IC7), programmable logic chip (IC6, IC8, IC9) and 4 groups altogether the altogether positive common port driving circuits of positive charactrons form, microprocessor (2) output terminal connects programmable logic chip (IC6 respectively, IC8, IC9) input end, chip (IC8) output terminal and chip (IC6) output terminal export 10 * 10 input ends that the light pointer shows light-emitting section (4) to through decimal decoding circuit (IC7), chip (IC9) output terminal connects the input end of 4 charactrons (5), 4 groups are total to positive charactron and are total to positive common port driving circuit by code translator (IC10), (T8～T15) forms triode, and (T8～T15) driving circuit drives the common oedoeagus of 4 charactrons (5) to microprocessor (2) output terminal successively through code translator (IC10) and triode.

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