CN202576736U

CN202576736U - Self-adaptive photoelectric electronic yarn clearer

Info

Publication number: CN202576736U
Application number: CN 201220272206
Authority: CN
Inventors: 赵晓东; 贾孔昊; 邹洪波; 孔亚广; 薛安克
Original assignee: Hangzhou Dianzi University
Current assignee: Hangzhou Dianzi University
Priority date: 2012-06-11
Filing date: 2012-06-11
Publication date: 2012-12-05
Anticipated expiration: 2022-06-11

Abstract

The utility model relates to a self-adaptive photoelectric electronic yarn clearer. The self-adaptive photoelectric electronic yarn clearer comprises a power supply managing module, a control module, an RS485 communication module, a signal detection and interface module, an external power supply module and an alarming display and operation module. The control module supplies a voltage value needing to be used for driving the external power supply module; the control module is used for converting a highest analogue voltage value collected and processed by a photoelectric sensor into a digital amount through an inner A/D (Analogue/Digital) module; the value is compared with a brightness value set by a system to judge whether the current brightness value accords with a predicated set value or not; and a voltage value of a light source module is adjusted by suitably adjusting a duty ratio of an output PWM (Pulse-Width Modulation) square wave according to the evidence. The self-adaptive photoelectric electronic yarn clearer disclosed by the utility model utility model further improves the collection accuracy; and meanwhile, an alarming display circuit on the periphery of a chip brings about more direct information to an operator.

Description

Self adaptation photoelectricity formula electronic yarn clearer

Technical field

The utility model belongs to the embedded system technology field, relates to a kind of self adaptation photoelectricity formula electronic yarn clearer.

Background technology

It is recurrent in the resultant yarn process of yarn, receiving influence of various factors yarn fault; No matter be traditional spinning method or all kinds of spinning method (revolving cup spins, Air-Jet Spinning etc.); Even use best spinning material; Up-to-date spinning equipment and optimum spinning process, the yarn fault also is inevitable.The appearance of yarn defect seriously influences yarn qualities and fabric quality.Economic benefit will be improved the quality of products, increased in textile mills, and one of its main task is exactly on the basis of enhancing productivity, and effectively controls the yarn defect, keeps stable yarn evenness, to weave the satisfied quality product of people.Electronic yarn clearer arises at the historic moment, and it is to be applied in the textile industry winding procedure, and be used for checking harmful yarn defect and remove, thus the electronic installation of control yarn qualities.It can according to thickness of yarn degree and two parameters of length, differentiate and remove harmful yarn defect voluntarily according to requirements such as yarn qualities, product specifications.The application of electronic yarn clearer can be supervised the working condition of preceding working procedure, can remove harmful yarn defect, control yarn qualities, improves the operating efficiency of later process greatly, is the requisite electronic equipment of modern textile.

The electronic yarn clearer of supply is main with Realization of Analog Circuit in the market; Its shortcoming is that the parameter variation that device aging causes causes the mistake rate of cutting to rise, and not only parameter is provided with complicacy, and is difficult to realize for functions such as data statistics, monitoring; Lack corresponding demonstration simultaneously, intuitive is not strong.To owing to light transmitter and the long-term yarn detection failure that wears out and cause of using of photoelectric sensor, design a kind of new detection control and display circuit to overcome above problem.

Summary of the invention

The utility model be the yarn detection failure that is caused to present yarn clearer device aging and be provided with complicated and accuracy of detection low excessively.Design a kind of low power consumption adaptive light source adjustment testing circuit with Presentation Function.

The concrete technical scheme that the utility model technical solution problem is taked is:

The utility model comprises power management module, control module, RS485 communication module, input and interface module, external light source module, alarm indication and operational module.

Power management module comprises first power module and second source module.First power module comprises the first power management chip IC1 (LM2596), the first fuse link F1, the first electrolytic capacitor filter C1; The second filter capacitor C2; The first anti-reverse diode VD1, the first filter inductance L1, the 3rd electrolytic capacitor filter C3; The 4th filter capacitor C4, the first divider resistance R1 and first LED 1.

The total power supply of 24V that the termination of the first fuse link F1 is given, the positive pole of another termination first electrolytic capacitor filter C1 of the first fuse link F1, the end of the second filter capacitor C2 and No. 1 pin of the first power management chip IC1; The minus earth of the first electrolytic capacitor filter C1, the other end ground connection of the second filter capacitor C2; No. 3 pins of the first power management chip IC1 and No. 5 pin ground connection of the first power management chip IC1; No. 4 pins of the first power management chip IC1 connect the end of the first filter inductance L1, the positive pole of the 3rd electrolytic capacitor filter C3, the end of the 4th filter capacitor C4 and the end of the first divider resistance R1; No. 2 pins of an other termination first power management chip IC1 of the first filter inductance L1 and the negative electrode of the first anti-reverse diode VD1, the plus earth of the first anti-reverse diode VD1; The other end ground connection of the negative pole of the 3rd electrolytic capacitor filter C3 and the 4th filter capacitor C4; The anode of an other termination first LED 1 of the first divider resistance R1, the minus earth of first LED 1.

The second source module comprises the 5th electrolytic capacitor filter C5, the 6th filter capacitor C6, second source managing chip IC3 (AMS1117-3.3), the 7th electrolytic capacitor filter C7, the 8th filter capacitor C8, the second divider resistance R2 and second LED 2.

The positive pole of the 5th electrolytic capacitor filter C5 connects the 5V operating voltage that is provided by first power module, the end of the 6th filter capacitor C6 and No. 3 pins of second source managing chip IC3; The minus earth of the 5th electrolytic capacitor filter C5, the other end of the 6th filter capacitor C6 and No. 1 pin of second source managing chip IC3 be ground connection also; No. 2 pins of second source managing chip IC3 are positive pole, the end of the 8th filter capacitor C8 and the end of the second divider resistance R2 of the 7th electrolytic capacitor filter C7 in succession, the minus earth of the 7th electrolytic capacitor filter C7; The other end ground connection of the 8th filter capacitor C8, the anode of an other termination second LED 2 of the second divider resistance R2, the minus earth of second LED 2.

Control module comprises control chip IC4 (STC12C54), the 20 filter capacitor C20, the 21 filter capacitor C21, the 22 filter capacitor C22; The 13 electrolytic capacitor filter C13, the 14 filter capacitor C14, the 15 electrolytic capacitor filter C15; The tenth fen piezoresistance R10, the 11 divider resistance R11, the 12 divider resistance R12; The 16 filter capacitor C16, the 17 filter capacitor C17, clock crystal oscillator XTAL1 and serial line interface J1.

No. 1 pin of serial line interface J1 connects the 3.3V power supply; No. 2 pin of serial line interface J1 connect the end of the 11 divider resistance R11 and No. 1 pin of RS485 communication module chips IC5; No. 3 pins of serial line interface J1 connect the end of the 12 divider resistance R12 and No. 4 pins of RS485 communication module chips IC5, No. 4 pin ground connection of serial line interface J1; The termination 3.3V power supply of the 20 filter capacitor C20, the 21 filter capacitor C21 and the 22 filter capacitor C22, the equal ground connection of an other end of the 20 filter capacitor C20, the 21 filter capacitor C21 and the 22 filter capacitor C22; The positive pole of the 13 electrolytic capacitor filter C13 connects No. 32 pins of 3.3V power supply, control chip IC4 and the end of the 14 filter capacitor C14, the minus earth of the 13 electrolytic capacitor filter C13; An other end ground connection of the 14 filter capacitor; No. 7 pins of the termination control chip IC4 of clock crystal oscillator XTAL1 and the end of the 16 filter capacitor C16, No. 8 pins of the other termination control chip IC4 of clock crystal oscillator XTAL1 and the end of the 17 filter capacitor C17; The other end of the 16 filter capacitor C16 and the other end ground connection of the 17 filter capacitor C17; The positive pole of the 15 electrolytic capacitor filter C15 connects the 3.3V power supply, and the negative pole of the 15 electrolytic capacitor filter C15 connects the end of the tenth fen piezoresistance R10 and No. 3 pins of control chip IC4, the other end ground connection of the tenth fen piezoresistance R10; No. 4 pins of the other termination control chip IC4 of the 11 divider resistance R11, No. 5 pins of the other termination control chip IC4 of the 12 divider resistance R12; No. 1 pin of control chip IC5 connects No. 3 pins of RS485 communication module chips IC5; No. 6 pins of control chip IC5 connect No. 2 pins of RS485 communication module chips IC5; No. 12 pins of control chip IC5 connect No. 4 pins of interface J0 in detection and the interface module; No. 13 pins of control chip IC5 connect No. 2 pins of interface J0 in detection and the interface module, and No. 14 pins of control chip IC5 connect the end of divider resistance R3 in the external light source module; No. 15 pins of control chip IC5 taking alarm with operational module in an end of resistance R 20; No. 16 pin ground connection of control chip IC5; No. 17 pins of control chip IC5, No. 18 pins, No. 19 pins are distinguished the end of divider resistance R19 in taking alarm and the operational module, the end of divider resistance R18 and the end of divider resistance R17; No. 7 pins of interface J0 in No. 20 pins of control chip IC5 and No. 21 equal joint detection of pin and the interface module; No. 22 pins of control chip IC5 connect the end of current-limiting resistance R18 and current-limiting resistance R19 in the external light source module; No. 23 pin to 30 pins of control chip IC5 connect the end of divider resistance R21 in the display module respectively; The end of divider resistance R22; The end of divider resistance R23, the end of divider resistance R24, the end of divider resistance R25; The end of divider resistance R26, the end of divider resistance R27 and the end of divider resistance R28.

The RS485 communication module comprises RJ45 interface J2, RS485 communication chip IC5 (SN75176), the 13 divider resistance R13; The 14 divider resistance R14; The 15 pull-up resistor R15, the 16 pull down resistor R16, the 18 filter capacitor C18; The first transient voltage restraining diode TVS1, the second transient voltage restraining diode TVS2 and the 3rd transient voltage restraining diode TVS3.

No. 1 pin of RJ45 interface J2 and No. 8 pin connect the working power of 5V; No. 2 pin and No. 7 pin ground connection of RJ45 interface J2; No. 3 pin and No. 4 pin of RJ45 interface J2 connect the end of the 13 divider resistance R13 and the end of the 16 pull down resistor R16, and No. 5 pin and No. 6 pin of RJ45 interface J2 connect the end of the 14 divider resistance R14 and the end of the 15 pull-up resistor R15; No. 1 pin of RS485 communication chip IC5 connects the end of divider resistance R11 in the control module; No. 4 pins of RS485 communication chip IC5 connect the end of divider resistance R12 in the control module; No. 2 pin of RS485 communication chip IC5 connect No. 6 pins of control chip IC4, and No. 3 pin of RS485 communication chip IC5 connect No. 1 pin of control chip IC4; No. 5 pins of RS485 communication chip IC5; The other end of the 16 pull down resistor R16 and the end ground connection of the 18 filter capacitor C18; No. 6 pins of RS485 communication chip IC5 connect the other end of the 14 divider resistance R14; No. 7 pins of RS485 communication chip IC5 connect the other end of the 13 divider resistance R13, and the other end of the 15 pull-up resistor R15 and No. 8 pins of RS485 communication chip IC5 connect the working power of 5V and the other end of the 18 filter capacitor C18; The anode of the first transient voltage restraining diode TVS1; The anode of the second transient voltage restraining diode TVS2 and the equal ground connection of the 3rd transient voltage restraining diode TVS3 anode; The negative electrode of the first transient voltage restraining diode TVS1 connects No. 3 pin and No. 4 pin of RJ45 interface J2; The negative electrode of the second transient voltage restraining diode TVS2 connects No. 5 pin and No. 6 pin of RJ45 interface J2, and the negative electrode of the 3rd transient voltage restraining diode TVS3 connects the 5V working power.

Input and interface module comprise the first interface J0, the 19 filter capacitor C19, photoelectric sensing chip IC 0 (P358PLCC); The 31 divider resistance R31; The 32 divider resistance R32, the 33 divider resistance R33, the 23 filter capacitor C23; The 24 filter capacitor C24, the 25 filter capacitor C25.

No. 2 pins of photoelectric sensing chip IC 0 connect the end of the 32 divider resistance R32, the other end ground connection of the 32 divider resistance R32; No. 3 pins of photoelectric sensing chip IC 0 connect the end of the 31 divider resistance R31; No. 4 pins and No. 7 pins, the end of the 24 filter capacitor C24 and the ends of the 25 filter capacitor C25 of the other end of the 31 divider resistance R31, photoelectric sensing chip IC 0 all connect the 3.3V working power; The other end of the 24 filter capacitor C24 and the equal ground connection of an other end of the 25 filter capacitor C25; No. 5 pins of photoelectric sensing chip IC 0 connect the end of the 23 filter capacitor C23, the other end ground connection of the 23 filter capacitor C23; No. 6 pins and No. 9 pin ground connection of photoelectric sensing chip IC 0; No. 7 pin of No. 8 pin connection interface J0 of photoelectric sensing chip IC 0, No. 10 pins of photoelectric sensing chip IC 0 connect the end of the 33 divider resistance R33, the other end ground connection of the 33 divider resistance R33; No. 2 pin of No. 11 pin connection interface J0 of photoelectric sensing chip IC 0, No. 4 pin of No. 12 pin connection interface J0 of photoelectric sensing chip IC 0.No. 1 pin and No. 5 pin of the first interface J0 connect the 3.3V power supply, No. 3 pin of the first interface J0, No. 6 pin and No. 8 pin ground connection, and No. 2 pin of the first interface J0 connect No. 13 pins of control chip IC4, and No. 4 pin of the first interface J0 connect No. 12 pins of control chip IC4; No. 7 pin of the first interface J0 connect the end of No. 20 pins of control chip IC4, No. 21 pins and the 19 filter capacitor C19; The other end ground connection of the 19 filter capacitor C19.

The external light source module comprises the 3rd divider resistance R3, the 4th divider resistance R4, the 5th divider resistance R5, the 9th filter capacitor C9; The tenth filter capacitor C10, the 11 filter capacitor C11, operational amplifier chip IC 2 (LM2904), the 6th divider resistance R6; The 7th divider resistance R7, the 12 filter capacitor C12, the first transistor Q1 (9013); The 6th LED 0, the eight current-limiting resistance R8, the 9th current-limiting resistance R9.

No. 5 pins and No. 6 pin ground connection of integrated operational amplifier IC2; No. 14 pins of the termination control chip IC4 of the 3rd divider resistance R3; The end of an other termination the 9th filter capacitor C9 of the 3rd divider resistance R3 and R4 one end of the 4th divider resistance, the other end ground connection of the 9th filter capacitor C9; The end of an other termination the tenth filter capacitor C10 of the 4th divider resistance R4 and the end of the 5th divider resistance R5, the other end ground connection of the tenth filter capacitor C10; The end of an other termination the 11 filter capacitor C11 of the 5th divider resistance R5 and No. 3 pins of IC2, the other end ground connection of the 11 filter capacitor C11; No. 4 pin ground connection of integrated operational amplifier IC2, No. 8 pins of IC2 connect the working power of 5V; No. 2 pins of integrated operational amplifier IC2 connect the end of the 7th divider resistance R7 and the end of the 12 filter capacitor C12; The anode of the other end of the 7th divider resistance R7 and an other termination the 6th LED 0 of the 12 filter capacitor C12 and the emitter stage of the first transistor Q1; No. 1 pin of integrated operational amplifier IC2 connects the end of the 6th divider resistance R6, the base stage of an other termination first transistor Q1 of the 6th divider resistance R6, and the colelctor electrode of the first transistor Q1 connects the 5V working power; The negative electrode of the 6th LED 0 connects the end of the 8th current-limiting resistance R8, the end of the 9th current-limiting resistance R9 and No. 22 pins of control chip IC4, the other end ground connection of the other end of the 8th current-limiting resistance R8 and the 9th current-limiting resistance R9.

Alarm indication and operational module comprise the second ten fens piezoresistance R20, the first button KEY1 the 29 pull-up resistor R29, the 30 pull down resistor R30, the 17 divider resistance R17; The 18 divider resistance R18, the 19 divider resistance R19, the 3rd LED 3, the four LEDs 4; The 5th LED 5, seven segment digital tubes DS1 (CPS03211), the 21 divider resistance R21; The 22 divider resistance R22, the 23 divider resistance R23, the 24 divider resistance R24; The 25 divider resistance R25, the 26 divider resistance R26, the 27 divider resistance R27 and the 28 divider resistance R28.

No. 15 pins of the termination control chip IC4 of the second ten fens piezoresistance R20; The end of an other termination first button KEY1 of the second ten fens piezoresistance R20 and the end of the 30 pull down resistor R30; The end of an other termination the 29 pull-up resistor R29 of the first button KEY1; The other termination 3.3V working power of the 29 pull-up resistor R29, the other end ground connection of the 30 pull down resistor R30; The anode of the other termination of No. 19 pins the 3rd LED 3 of the termination control chip IC4 of the 17 divider resistance R17; The anode of the other termination of No. 18 pins the 4th LED 4 of the termination control chip IC4 of the 18 divider resistance R18, the anode of the other termination of No. 17 pins the 5th LED 5 of the termination control chip IC4 of the 19 divider resistance R19; The equal ground connection of negative electrode of the 3rd LED 3, the four LEDs 4, the five LEDs 5; The end of the 21 divider resistance R21; The end of the 22 divider resistance R22; The end of the 23 divider resistance R23, the end of the 24 divider resistance R24, the end of the 25 divider resistance R25; The end of the 26 divider resistance R26, the end of the 27 divider resistance R27 and the end of the 28 divider resistance R28 connect 23 to No. 30 pins of control chip IC4 respectively; No. 1 pin of the other termination seven segment digital tubes DS1 of the 21 divider resistance R21; No. 10 pin of the other termination seven segment digital tubes DS1 of the 22 divider resistance R22; No. 8 pin of the other termination seven segment digital tubes DS1 of the 23 divider resistance R23; No. 5 pin of the other termination seven segment digital tubes DS1 of the 24 divider resistance R24; No. 4 pin of the other termination seven segment digital tubes DS1 of the 25 divider resistance R25; No. 2 pin of the other termination seven segment digital tubes DS1 of the 26 divider resistance R26, No. 3 pin of the other termination seven segment digital tubes DS1 of the 27 divider resistance R27, No. 6 pin of the other termination seven segment digital tubes DS1 of the 28 divider resistance R28; No. 7 pin of seven segment digital tubes DS1, No. 9 pin of seven segment digital tubes DS1 connect the 3.3V working power.

Each module all adopts existing mature technology in the utility model; Provide the needed voltage value of driving external light source module according to controller; The highest analog voltage that controller obtains according to the photoelectric sensor acquisition process; The light value that converts thereof into behind the digital quantity with default compares processing, judges the whether setting value of accord with expectation of current light value, makes external light source reliable and stable; Further improve and gather the degree of accuracy, the alarm indication circuit of chip periphery is given operating personnel information more intuitively simultaneously.

Description of drawings

The optical pickocff measuring principle that Fig. 1 yarn detects;

The structural representation block diagram of Fig. 2 yarn testing circuit;

Fig. 3 yarn testing circuit first power module circuitry schematic diagram;

Fig. 4 yarn testing circuit second source modular circuit schematic diagram;

Fig. 5 yarn testing circuit control module circuit theory diagrams;

Fig. 6 yarn testing circuit RS485 communication module circuit theory diagrams;

Fig. 7 yarn testing circuit detects and the interface module circuit theory diagrams;

Fig. 8 yarn testing circuit external light source modular circuit schematic diagram;

Testing circuit alarm indication of Fig. 9 yarn and operational module circuit theory diagrams.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is described further.

The practical implementation of the utility model is for example shown in the accompanying drawing; That shown in Figure 1 is the basic principle figure of optical detection yarn; Yarn to be detected moves in the zone between light transmitter (LED external light source) and light receiver (photoelectric sensor), and the variation of yarn diameter just can be decided by the change of the luminous flux that is received on the light receiver like this.Shown in Figure 2 is the structural representation block diagram of yarn testing circuit, mainly is made up of first power module 1, second source module 2, control module 3, RS485 communication module 4, signal detection module 5, external

light source module

6,7 of alarm indication operational modules.

The workflow of this electronic yarn clearer is following: in the time of between yarn is via light transmitter and light receiver, will bring the change of the luminous flux in a certain zone of light receiver.Again signal is transferred to control chip after the once simulation output process corresponding modulation filtering with light receiver; Control chip is converted into this signal of telecommunication through the yarn diameter parameter between transmitter and the receiver via AD conversion and the inner operational processes of program; Judge whether to occur the yarn fault and these information are passed to host computer thereby can change according to detected yarn diameter, the while provides corresponding warning message for too much yarn fault and on light emitting diode and charactron, shows.In addition owing to the reason such as aging of light source etc.; Will make detected largest light intensity value along with the prolongation of service time is more and more lower; Expect difference light value between through largest light intensity value and reality that chip internal is sampled this moment; The output of suitable adjustment chip is controlled the electric current of light source to improve light intensity, reduces the aging influence that brings.

As shown in Figure 3, first power module comprises fuse link F1, electrolytic capacitor filter C1, filter capacitor C2; Anti-reverse diode VD1, power management chip IC1 (LM2596), filter inductance L1, electrolytic capacitor filter C3; Filter capacitor C4, divider resistance R1, LED 1.

Power management chip LM2596 is the voltage stabilizing chip that 24V changes 5V, and it converts the technical grade operating voltage 24V of routine to 5V, is the RS485 communication module, and second source module and external light source module provide stable 5V operating voltage.Simultaneously dash current occurs in the industrial 24V power supply circuits, add resettable fuse to eliminate the influence of overshoot current equipment in LM2596 leading portion input stage in order to prevent.The total power supply of 24V that the termination of fuse link F1 is given, the positive pole of another termination electrolytic capacitor filter C1 of fuse link F1, the end of filter capacitor C2 and No. 1 pin of power management chip IC1; The minus earth of electrolytic capacitor filter C1, the other end ground connection of filter capacitor C2; No. 3 pins of power management chip IC1 and No. 5 pin ground connection of power management chip IC1; No. 4 pins of power management chip IC1 connect the end of filter inductance L1, the positive pole of electrolytic capacitor filter C3, the end of filter capacitor C4 and the end of divider resistance R1; No. 2 pins of the other termination power managing chip IC1 of filter inductance L1 and the negative electrode of anti-reverse diode VD1, the plus earth of anti-reverse diode VD1; The other end ground connection of the negative pole of electrolytic capacitor filter C3 and filter capacitor C4; The anode of the other termination LED 1 of divider resistance R1, the minus earth of LED 1.

As shown in Figure 4, the second source module comprises electrolytic capacitor filter C5, filter capacitor C6, power management chip IC3 (AMS1117-3.3), electrolytic capacitor filter C7, filter capacitor C8, divider resistance R2 and LED 2.

Because the standard operation voltage of most processor is about 3.3V, so need voltage is reduced to 3.3V, to give control chip IC1, alarm indication operational module and testing circuit provide working power.The positive pole of electrolytic capacitor filter C5 connects 5V operating voltage, the end of filter capacitor C6 and No. 3 pins of power management chip IC3 that first power module is provided; The minus earth of electrolytic capacitor filter C5, the other end of filter capacitor C6 and No. 1 pin of power management chip IC3 be ground connection also; No. 2 pins of power management chip IC3 are positive pole, the end of filter capacitor C8 and the end of divider resistance R2 of electrolytic capacitor filter C7 in succession; The minus earth of electrolytic capacitor filter C7; The other end ground connection of filter capacitor C8, the anode of the other termination LED 2 of divider resistance R2, the minus earth of LED 2.

As shown in Figure 5, control module comprises control chip IC4 (STC12C54), filter capacitor C20, filter capacitor C21; Filter capacitor C22, electrolytic capacitor filter C13, filter capacitor C14, electrolytic capacitor filter C15; Divider resistance R10, divider resistance R11, divider resistance R12; Filter capacitor C16, filter capacitor C17, clock crystal oscillator XTAL1 and serial line interface J1.

Control chip STC12C54 is the high-performance single-chip microcomputer of a kind of low-power consumption, chip internal integrated multipath AD; Simultaneously it can comparatively make things convenient for and the adjustable square-wave signal of output duty cycle flexibly, the control of outside light source module and the startup of collecting part is changed realizing.No. 1 pin of serial line interface J1 connects the 3.3V power supply; No. 2 pin of serial line interface J1 connect No. 1 pin of IC5 in an end and the RS485 communication module of divider resistance R11; No. 3 pins of serial line interface J1 connect No. 4 pins of IC5 in an end and the RS485 communication module of divider resistance R12, No. 4 pin ground connection of serial line interface J1; The termination 3.3V power supply of filter capacitor C20, filter capacitor C21 and filter capacitor C22, the equal ground connection of an other end of filter capacitor C20, filter capacitor C21 and filter capacitor C22; The positive pole of electrolytic capacitor filter C13 connects No. 32 pins of 3.3V power supply, control chip IC4 and the end of filter capacitor C14, the minus earth of electrolytic capacitor filter C13, the other end ground connection of filter capacitor C14; No. 7 pins of the termination control chip IC4 of clock crystal oscillator XTAL1 and the end of filter capacitor C16, No. 8 pins of the other termination control chip IC4 of clock crystal oscillator XTAL1 and the end of filter capacitor C17; The equal ground connection of an other end of the other end of filter capacitor C16 and filter capacitor C17; The positive pole of electrolytic capacitor filter C15 connects the 3.3V power supply, and the negative pole of electrolytic capacitor filter C15 connects the end of divider resistance R10 and No. 3 pins of control chip IC4; The other end ground connection of divider resistance R10, No. 4 pins of the other termination control chip IC4 of divider resistance R11; No. 5 pins of the other termination control chip IC4 of divider resistance R12; No. 1 pin of control chip IC5 connects No. 3 pins of RS485 communication module chips IC5; No. 6 pins of control chip IC5 connect No. 2 pins of RS485 communication module chips IC5; No. 12 pins of control chip IC5 connect No. 4 pins of interface J0 in detection and the interface module; No. 13 pins of control chip IC5 connect No. 2 pins of interface J0 in detection and the interface module, and No. 14 pins of control chip IC5 connect the end of divider resistance R3 in the external light source module; No. 15 pins of control chip IC5 taking alarm with operational module in an end of resistance R 20; No. 16 pin ground connection of control chip IC5; No. 17 pins of control chip IC5, No. 18 pins, No. 19 pins are distinguished the end of divider resistance R19 in taking alarm and the operational module, the end of divider resistance R18 and the end of divider resistance R17; No. 7 pins of interface J0 in No. 20 pins of control chip IC5 and No. 21 equal joint detection of pin and the interface module; No. 22 pins of control chip IC5 connect the end of current-limiting resistance R18 and current-limiting resistance R19 in the external light source module; No. 23 pin to 30 pins of control chip IC5 connect the end of divider resistance R21 in the display module respectively; The end of divider resistance R22; The end of divider resistance R23; The end of divider resistance R24, the end of divider resistance R25 and the end of divider resistance R26, the end of divider resistance R27 and the end of divider resistance R28.

As shown in Figure 6, the RS485 communication module comprises RJ45 interface J2, RS485 communication chip IC5 (SN75176); Divider resistance R13, divider resistance R14, pull-up resistor R15; Pull down resistor R16; Filter capacitor C18, transient voltage restraining diode TVS1, transient voltage restraining diode TVS2 and transient voltage restraining diode TVS3.

In industry spot; Such or such irresistible external disturbance can appear on the transmission line unavoidably; The differential signal of use 485 can be eliminated the interference of external signal to communication to a great extent, adds the transient voltage restraining diode simultaneously and can prevent such as the influence of big electric current high voltages such as thunderbolt to equipment.No. 1 pin of RJ45 interface J2 and No. 8 pin connect the working power of 5V; No. 2 pin and No. 7 pin ground connection of RJ45 interface J2; No. 3 pin and No. 4 pin of RJ45 interface J2 connect the end of divider resistance R13 and the end of pull down resistor R16, and No. 5 pin and No. 6 pin of RJ45 interface J2 connect the end of divider resistance R14 and the end of pull-up resistor R15; No. 1 pin of RS485 communication chip IC5 connects the end of divider resistance R11 in the control module; No. 4 pins of RS485 communication chip IC5 connect the end of divider resistance R12 in the control module; No. 2 pin of RS485 communication chip IC5 connect No. 6 pins of control chip, and No. 3 pin of RS485 communication chip IC5 connect No. 1 pin of control chip; No. 5 pins of RS485 communication chip IC5, the other end of pull down resistor R16 and the end ground connection of filter capacitor C18; No. 6 pins of RS485 communication chip IC5 connect the other end of divider resistance R14, and No. 7 pins of RS485 communication chip IC5 connect the other end of divider resistance R13; The other end of pull-up resistor R15 and No. 8 pins of RS485 communication chip IC5 connect the working power of 5V and the other end of filter capacitor C18; The anode of transient voltage restraining diode TVS1; The anode of transient voltage restraining diode TVS2 and the equal ground connection of transient voltage restraining diode TVS3 anode; The negative electrode of transient voltage restraining diode TVS1 connects No. 3 pin and No. 4 pin of RJ45 interface J2; The negative electrode of transient voltage restraining diode TVS2 connects No. 5 pin and No. 6 pin of RJ45 interface J2, and the negative electrode of transient voltage restraining diode TVS3 connects the 5V working power.

As shown in Figure 6, input and interface module comprise interface J0, filter capacitor C19, photoelectric sensing chip IC 0 (P358PLCC), divider resistance R31, divider resistance R32, divider resistance R33, filter capacitor C23, filter capacitor C24, filter capacitor C25.

Light receiver adopts photoelectric sensing chip IC 0 (P358PLCC), and it is made up of numerous miniature photosensitive receiving stations, can detect the variation of luminous flux accurately and convert thereof into corresponding analog signal output.No. 2 pins of photoelectric sensing chip IC 0 connect the end of divider resistance R32, the other end ground connection of divider resistance R32; No. 3 pins of IC0 connect the end of divider resistance R31; No. 4 pins and No. 7 pins, the end of filter capacitor C24 and the ends of filter capacitor C25 of the other end of divider resistance R31, IC0 all connect the 3.3V working power; The equal ground connection of an other end of the other end of filter capacitor C24 and filter capacitor C25; No. 5 pins of IC0 connect the end of filter capacitor C23, the other end ground connection of filter capacitor C23; No. 6 pins and No. 9 pin ground connection of IC0; No. 7 pin of No. 8 pin connection interface J0 of IC0, No. 10 pins of IC0 connect the end of divider resistance R33, the other end ground connection of divider resistance R33; No. 2 pin of No. 11 pin connection interface J0 of IC0, No. 4 pin of No. 12 pin connection interface J0 of IC0.No. 1 pin and No. 5 pin of interface J0 connect the 3.3V power supply, No. 3 pin of interface J0, No. 6 pin and No. 8 pin ground connection, and No. 2 pin of interface J0 connect No. 13 pins of control chip IC4, and No. 4 pin of interface J0 connect No. 12 pins of control chip IC4; No. 7 pin of interface J0 connect the end of No. 20 pins of control chip IC4, No. 21 pins and filter capacitor C19; The other end ground connection of filter capacitor C19.This module is providing a circuit interface that has provided on the basis of testing circuit between itself and the control processing circuit.

As shown in Figure 8, the external light source module comprises divider resistance R3, divider resistance R4, divider resistance R5; Filter capacitor C9, filter capacitor C10, filter capacitor C11 calculates amplifier chip IC2 (LM2904); Divider resistance R6, piezoresistance R7, filter capacitor C12, transistor Q1 (9013); LED 0, current-limiting resistance R8, current-limiting resistance R9.

LED 0 is as the light transmitter in the light source module.Light transmitter change of luminous intensity will directly have influence on the variation of detected luminous flux on the photoelectric sensing chip and then cause the variation of yarn detection width; And the system that need make remains unchanged at no yarn detected luminous flux on out-of-date sensor in the actual industrial processes, need realize the adjustment to outside light source module for this reason.No. 5 pins and No. 6 equal ground connection of pin of integrated operational amplifier IC2; No. 14 pins of the termination control chip IC4 of divider resistance R3; The end of the other termination filter capacitor C9 of divider resistance R3 and R4 one end of divider resistance, the other end ground connection of filter capacitor C9; The end of the other termination filter capacitor C10 of divider resistance R4 and the end of divider resistance R5; The other end ground connection of filter capacitor C10; The end of the other termination filter capacitor C11 of divider resistance R5 and No. 3 pins of IC2, the other end ground connection of filter capacitor C11; No. 4 pin ground connection of IC2, No. 8 pins of IC2 connect the working power of 5V; No. 2 pins of IC2 connect the end of divider resistance R7 and the end of filter capacitor C12; The anode of the other end of divider resistance R7 and the other termination LED 0 of filter capacitor C12 and the emitter stage of transistor Q1; No. 1 pin of integrated operational amplifier IC2 connects the end of divider resistance R6, the base stage of the other termination transistor Q1 of divider resistance R6, and the colelctor electrode of transistor Q1 connects the 5V working power; The negative electrode of LED 0 connects the end of current-limiting resistance R8, the end of current-limiting resistance R9 and No. 22 pins of control chip IC4, the equal ground connection of an other end of the other end of current-limiting resistance R8 and current-limiting resistance R9.

As shown in Figure 9, alarm indication and operational module comprise divider resistance R20, button KEY1 pull-up resistor R29, pull down resistor R30, divider resistance R17; Divider resistance R18, divider resistance R19, LED 3, LED 4, LED 5; Seven segment digital tubes DS1 (CPS03211), divider resistance R21, divider resistance R22, divider resistance R23; Divider resistance R24, divider resistance R25, divider resistance R26, divider resistance R27 and divider resistance R28.

No. 15 pins of the termination control chip IC4 of divider resistance R20, the end of the other termination button KEY1 of divider resistance R20 and the end of pull down resistor R30, the end of the other termination pull-up resistor R29 of button KEY1; The other termination 3.3V working power of pull-up resistor R29, the other end ground connection of pull down resistor R30; The anode of No. 19 other termination LEDs 3 of pin of the termination control chip IC4 of divider resistance R17; The anode of No. 18 other termination LEDs 4 of pin of the termination control chip IC4 of divider resistance R18, the anode of No. 17 other termination LEDs 5 of pin of the termination control chip IC4 of divider resistance R19; LED 3, LED 4, the equal ground connection of the negative electrode of LED 5; The end of divider resistance R21, the end of divider resistance R22, the end of divider resistance R23; The end of divider resistance R24; The end of divider resistance R25, the end of divider resistance R26, the end of divider resistance R27 and the end of divider resistance R28 connect 23 to No. 30 pins of control chip IC4 respectively; No. 1 pin of the other termination seven segment digital tubes DS1 of divider resistance R21; No. 10 pin of the other termination seven segment digital tubes DS1 of divider resistance R22; No. 8 pin of the other termination seven segment digital tubes DS1 of divider resistance R23; No. 5 pin of the other termination seven segment digital tubes DS1 of divider resistance R24, No. 4 pin of the other termination seven segment digital tubes DS1 of divider resistance R25, No. 2 pin of the other termination seven segment digital tubes DS1 of divider resistance R26; No. 3 pin of the other termination seven segment digital tubes DS1 of divider resistance R27, No. 6 pin of the other termination seven segment digital tubes DS1 of divider resistance R28; No. 7 pin of seven segment digital tubes DS1, No. 9 pin of seven segment digital tubes DS1 connect the 3.3V working power.

Claims

1. self adaptation photoelectricity formula electronic yarn clearer comprises power management module, control module, RS485 communication module, input and interface module, external light source module, alarm indication and operational module, it is characterized in that:

Power management module comprises first power module and second source module; First power module comprises the first power management chip IC1, the first fuse link F1, the first electrolytic capacitor filter C1; The second filter capacitor C2; The first anti-reverse diode VD1, the first filter inductance L1, the 3rd electrolytic capacitor filter C3; The 4th filter capacitor C4, the first divider resistance R1 and first LED 1;

The total power supply of 24V that the termination of the first fuse link F1 is given, the positive pole of another termination first electrolytic capacitor filter C1 of the first fuse link F1, the end of the second filter capacitor C2 and No. 1 pin of the first power management chip IC1; The minus earth of the first electrolytic capacitor filter C1, the other end ground connection of the second filter capacitor C2; No. 3 pins of the first power management chip IC1 and No. 5 pin ground connection of the first power management chip IC1; No. 4 pins of the first power management chip IC1 connect the end of the first filter inductance L1, the positive pole of the 3rd electrolytic capacitor filter C3, the end of the 4th filter capacitor C4 and the end of the first divider resistance R1; No. 2 pins of an other termination first power management chip IC1 of the first filter inductance L1 and the negative electrode of the first anti-reverse diode VD1, the plus earth of the first anti-reverse diode VD1; The other end ground connection of the negative pole of the 3rd electrolytic capacitor filter C3 and the 4th filter capacitor C4; The anode of an other termination first LED 1 of the first divider resistance R1, the minus earth of first LED 1, the model of the described first power management chip IC1 is LM2596;

The second source module comprises the 5th electrolytic capacitor filter C5, the 6th filter capacitor C6, second source managing chip IC3, the 7th electrolytic capacitor filter C7, the 8th filter capacitor C8, the second divider resistance R2 and second LED 2;

The positive pole of the 5th electrolytic capacitor filter C5 connects the 5V operating voltage that is provided by first power module, the end of the 6th filter capacitor C6 and No. 3 pins of second source managing chip IC3; The minus earth of the 5th electrolytic capacitor filter C5, the other end of the 6th filter capacitor C6 and No. 1 pin of second source managing chip IC3 be ground connection also; No. 2 pins of second source managing chip IC3 connect the positive pole of the 7th electrolytic capacitor filter C7, the end of the 8th filter capacitor C8 and the end of the second divider resistance R2, the minus earth of the 7th electrolytic capacitor filter C7; The other end ground connection of the 8th filter capacitor C8, the anode of an other termination second LED 2 of the second divider resistance R2, the minus earth of second LED 2, described second source managing chip IC3 model is AMS1117-3.3;

Control module comprises control chip IC4, the 20 filter capacitor C20, the 21 filter capacitor C21, the 22 filter capacitor C22; The 13 electrolytic capacitor filter C13, the 14 filter capacitor C14, the 15 electrolytic capacitor filter C15; The tenth fen piezoresistance R10, the 11 divider resistance R11, the 12 divider resistance R12; The 16 filter capacitor C16, the 17 filter capacitor C17, clock crystal oscillator XTAL1 and serial line interface J1;

No. 1 pin of serial line interface J1 connects the 3.3V power supply; No. 2 pin of serial line interface J1 connect the end of the 11 divider resistance R11 and No. 1 pin of RS485 communication module chips IC5; No. 3 pins of serial line interface J1 connect the end of the 12 divider resistance R12 and No. 4 pins of RS485 communication module chips IC5, No. 4 pin ground connection of serial line interface J1; The termination 3.3V power supply of the 20 filter capacitor C20, the 21 filter capacitor C21 and the 22 filter capacitor C22, the equal ground connection of an other end of the 20 filter capacitor C20, the 21 filter capacitor C21 and the 22 filter capacitor C22; The positive pole of the 13 electrolytic capacitor filter C13 connects No. 32 pins of 3.3V power supply, control chip IC4 and the end of the 14 filter capacitor C14, the minus earth of the 13 electrolytic capacitor filter C13; An other end ground connection of the 14 filter capacitor; No. 7 pins of the termination control chip IC4 of clock crystal oscillator XTAL1 and the end of the 16 filter capacitor C16, No. 8 pins of the other termination control chip IC4 of clock crystal oscillator XTAL1 and the end of the 17 filter capacitor C17; The other end of the 16 filter capacitor C16 and the other end ground connection of the 17 filter capacitor C17; The positive pole of the 15 electrolytic capacitor filter C15 connects the 3.3V power supply, and the negative pole of the 15 electrolytic capacitor filter C15 connects the end of the tenth fen piezoresistance R10 and No. 3 pins of control chip IC4, the other end ground connection of the tenth fen piezoresistance R10; No. 4 pins of the other termination control chip IC4 of the 11 divider resistance R11, No. 5 pins of the other termination control chip IC4 of the 12 divider resistance R12; No. 1 pin of control chip IC5 connects No. 3 pins of RS485 communication module chips IC5; No. 6 pins of control chip IC5 connect No. 2 pins of RS485 communication module chips IC5; No. 12 pins of control chip IC5 connect No. 4 pins of interface J0 in detection and the interface module; No. 13 pins of control chip IC5 connect No. 2 pins of interface J0 in detection and the interface module, and No. 14 pins of control chip IC5 connect the end of divider resistance R3 in the external light source module; No. 15 pins of control chip IC5 taking alarm with operational module in an end of resistance R 20; No. 16 pin ground connection of control chip IC5; No. 17 pins of control chip IC5, No. 18 pins, No. 19 pins are distinguished the end of divider resistance R19 in taking alarm and the operational module, the end of divider resistance R18 and the end of divider resistance R17; No. 7 pins of interface J0 in No. 20 pins of control chip IC5 and No. 21 equal joint detection of pin and the interface module; No. 22 pins of control chip IC5 connect the end of current-limiting resistance R18 and current-limiting resistance R19 in the external light source module; No. 23 pin to 30 pins of control chip IC5 connect the end of divider resistance R21 in the display module respectively; The end of divider resistance R22, the end of divider resistance R23, the end of divider resistance R24; The end of divider resistance R25; The end of divider resistance R26, the end of divider resistance R27 and the end of divider resistance R28, described control chip IC4 model is STC12C54;

The RS485 communication module comprises RJ45 interface J2, RS485 communication chip IC5, the 13 divider resistance R13; The 14 divider resistance R14; The 15 pull-up resistor R15, the 16 pull down resistor R16, the 18 filter capacitor C18; The first transient voltage restraining diode TVS1, the second transient voltage restraining diode TVS2 and the 3rd transient voltage restraining diode TVS3;

No. 1 pin of RJ45 interface J2 and No. 8 pin connect the working power of 5V; No. 2 pin and No. 7 pin ground connection of RJ45 interface J2; No. 3 pin and No. 4 pin of RJ45 interface J2 connect the end of the 13 divider resistance R13 and the end of the 16 pull down resistor R16, and No. 5 pin and No. 6 pin of RJ45 interface J2 connect the end of the 14 divider resistance R14 and the end of the 15 pull-up resistor R15; No. 1 pin of RS485 communication chip IC5 connects the end of divider resistance R11 in the control module; No. 4 pins of RS485 communication chip IC5 connect the end of divider resistance R12 in the control module; No. 2 pin of RS485 communication chip IC5 connect No. 6 pins of control chip IC4, and No. 3 pin of RS485 communication chip IC5 connect No. 1 pin of control chip IC4; No. 5 pins of RS485 communication chip IC5; The other end of the 16 pull down resistor R16 and the end ground connection of the 18 filter capacitor C18; No. 6 pins of RS485 communication chip IC5 connect the other end of the 14 divider resistance R14; No. 7 pins of RS485 communication chip IC5 connect the other end of the 13 divider resistance R13, and the other end of the 15 pull-up resistor R15 and No. 8 pins of RS485 communication chip IC5 connect the working power of 5V and the other end of the 18 filter capacitor C18; The anode of the first transient voltage restraining diode TVS1; The anode of the second transient voltage restraining diode TVS2 and the equal ground connection of the 3rd transient voltage restraining diode TVS3 anode; The negative electrode of the first transient voltage restraining diode TVS1 connects No. 3 pin and No. 4 pin of RJ45 interface J2; The negative electrode of the second transient voltage restraining diode TVS2 connects No. 5 pin and No. 6 pin of RJ45 interface J2; The negative electrode of the 3rd transient voltage restraining diode TVS3 connects the 5V working power, and described RS485 communication chip IC5 model is SN75176;

Input and interface module comprise the first interface J0, the 19 filter capacitor C19, photoelectric sensing chip IC 0; The 31 divider resistance R31; The 32 divider resistance R32, the 33 divider resistance R33, the 23 filter capacitor C23; The 24 filter capacitor C24, the 25 filter capacitor C25;

No. 2 pins of photoelectric sensing chip IC 0 connect the end of the 32 divider resistance R32, the other end ground connection of the 32 divider resistance R32; No. 3 pins of photoelectric sensing chip IC 0 connect the end of the 31 divider resistance R31; No. 4 pins and No. 7 pins, the end of the 24 filter capacitor C24 and the ends of the 25 filter capacitor C25 of the other end of the 31 divider resistance R31, photoelectric sensing chip IC 0 all connect the 3.3V working power; The other end of the 24 filter capacitor C24 and the equal ground connection of an other end of the 25 filter capacitor C25; No. 5 pins of photoelectric sensing chip IC 0 connect the end of the 23 filter capacitor C23, the other end ground connection of the 23 filter capacitor C23; No. 6 pins and No. 9 pin ground connection of photoelectric sensing chip IC 0; No. 7 pin of No. 8 pin connection interface J0 of photoelectric sensing chip IC 0, No. 10 pins of photoelectric sensing chip IC 0 connect the end of the 33 divider resistance R33, the other end ground connection of the 33 divider resistance R33; No. 2 pin of No. 11 pin connection interface J0 of photoelectric sensing chip IC 0, No. 4 pin of No. 12 pin connection interface J0 of photoelectric sensing chip IC 0; No. 1 pin and No. 5 pin of the first interface J0 connect the 3.3V power supply, No. 3 pin of the first interface J0, No. 6 pin and No. 8 pin ground connection, and No. 2 pin of the first interface J0 connect No. 13 pins of control chip IC4, and No. 4 pin of the first interface J0 connect No. 12 pins of control chip IC4; No. 7 pin of the first interface J0 connect the end of No. 20 pins of control chip IC4, No. 21 pins and the 19 filter capacitor C19; The other end ground connection of the 19 filter capacitor C19, described photoelectric sensing chip IC 0 model is P358PLCC;

The external light source module comprises the 3rd divider resistance R3, the 4th divider resistance R4, the 5th divider resistance R5, the 9th filter capacitor C9; The tenth filter capacitor C10, the 11 filter capacitor C11, operational amplifier chip IC 2; The 6th divider resistance R6, the 7th divider resistance R7, the 12 filter capacitor C12; The first transistor Q1 (9013), the 6th LED 0, the eight current-limiting resistance R8 and the 9th current-limiting resistance R9;

No. 5 pins and No. 6 pin ground connection of integrated operational amplifier IC2; No. 14 pins of the termination control chip IC4 of the 3rd divider resistance R3; The end of an other termination the 9th filter capacitor C9 of the 3rd divider resistance R3 and R4 one end of the 4th divider resistance, the other end ground connection of the 9th filter capacitor C9; The end of an other termination the tenth filter capacitor C10 of the 4th divider resistance R4 and the end of the 5th divider resistance R5, the other end ground connection of the tenth filter capacitor C10; The end of an other termination the 11 filter capacitor C11 of the 5th divider resistance R5 and No. 3 pins of integrated operational amplifier IC2, the other end ground connection of the 11 filter capacitor C11; No. 4 pin ground connection of integrated operational amplifier IC2, No. 8 pins of IC2 connect the working power of 5V; No. 2 pins of IC2 connect the end of the 7th divider resistance R7 and the end of the 12 filter capacitor C12; The anode of the other end of the 7th divider resistance R7 and an other termination the 6th LED 0 of the 12 filter capacitor C12 and the emitter stage of the first transistor Q1; No. 1 pin of integrated operational amplifier IC2 connects the end of the 6th divider resistance R6, the base stage of an other termination first transistor Q1 of the 6th divider resistance R6, and the colelctor electrode of the first transistor Q1 connects the 5V working power; The negative electrode of the 6th LED 0 connects the end of the 8th current-limiting resistance R8, the end of the 9th current-limiting resistance R9 and No. 22 pins of control chip IC4; The other end ground connection of the other end of the 8th current-limiting resistance R8 and the 9th current-limiting resistance R9, described operational amplifier chip IC 2 models are LM2904;

Alarm indication and operational module comprise the second ten fens piezoresistance R20, the first button KEY1 the 29 pull-up resistor R29, the 30 pull down resistor R30, the 17 divider resistance R17; The 18 divider resistance R18, the 19 divider resistance R19, the 3rd LED 3, the four LEDs 4; The 5th LED 5, seven segment digital tubes DS1, the 21 divider resistance R21; The 22 divider resistance R22, the 23 divider resistance R23, the 24 divider resistance R24; The 25 divider resistance R25, the 26 divider resistance R26, the 27 divider resistance R27 and the 28 divider resistance R28;

No. 15 pins of the termination control chip IC4 of the second ten fens piezoresistance R20; The end of an other termination first button KEY1 of the second ten fens piezoresistance R20 and the end of the 30 pull down resistor R30; The end of an other termination the 29 pull-up resistor R29 of the first button KEY1; The other termination 3.3V working power of the 29 pull-up resistor R29, the other end ground connection of the 30 pull down resistor R30; No. 19 pins of the termination control chip IC4 of the 17 divider resistance R17; The anode of an other termination the 3rd LED 3; No. 18 pins of the termination control chip IC4 of the 18 divider resistance R18; The anode of an other termination the 4th LED 4, No. 17 pins of the termination control chip IC4 of the 19 divider resistance R19, the anode of an other termination the 5th LED 5; The equal ground connection of negative electrode of the 3rd LED 3, the four LEDs 4, the five LEDs 5; The end of the 21 divider resistance R21; The end of the 22 divider resistance R22; The end of the 23 divider resistance R23, the end of the 24 divider resistance R24, the end of the 25 divider resistance R25; The end of the 26 divider resistance R26, the end of the 27 divider resistance R27 and the end of the 28 divider resistance R28 connect 23 to No. 30 pins of control chip IC4 respectively; No. 1 pin of the other termination seven segment digital tubes DS1 of the 21 divider resistance R21; No. 10 pin of the other termination seven segment digital tubes DS1 of the 22 divider resistance R22; No. 8 pin of the other termination seven segment digital tubes DS1 of the 23 divider resistance R23; No. 5 pin of the other termination seven segment digital tubes DS1 of the 24 divider resistance R24; No. 4 pin of the other termination seven segment digital tubes DS1 of the 25 divider resistance R25; No. 2 pin of the other termination seven segment digital tubes DS1 of the 26 divider resistance R26, No. 3 pin of the other termination seven segment digital tubes DS1 of the 27 divider resistance R27, No. 6 pin of the other termination seven segment digital tubes DS1 of the 28 divider resistance R28; No. 7 pin of seven segment digital tubes DS1, No. 9 pin of seven segment digital tubes DS1 connect the 3.3V working power, and described seven segment digital tubes DS1 model is CPS03211.