CN203768367U

CN203768367U - Instrument for measuring cell mechanical performance through electromagnetic force attraction

Info

Publication number: CN203768367U
Application number: CN201320833440.6U
Authority: CN
Inventors: 李宏; 林凌鹏; 求冰霞; 尹克; 王晟
Original assignee: Hangzhou Dianzi University
Current assignee: Hangzhou Dianzi University
Priority date: 2013-12-16
Filing date: 2013-12-16
Publication date: 2014-08-13
Anticipated expiration: 2023-12-16

Abstract

The utility model relates to an instrument for measuring cell mechanical performance through electromagnetic force attraction, aiming at solving the problems that the current equipment is high in cost, low in measurement accuracy and the like. According to the instrument, the criterion of a DA conversion module is provided by a power supply management module, and controls the size of current passing through an electromagnet, so as to change a magnetic field; STM32F103 is selected as a minimum system module which is an operational and processing core of the system and controls the DA conversion module and a liquid crystal control module; the liquid crystal control module is an interface of a display interface and a man-machine interaction touch screen; for the safety problem of the whole system, an isolating module is additionally arranged; the power supply management module is a master control chip, the liquid crystal control module and the isolating module provide a power supply, and the DA conversion module is respectively connected with a left electromagnetic coil and a right electromagnetic coil so as to generate the electromagnetic field and measure the processed cells. The instrument is convenient to carry, wide in usage range, simple in structure, and easy to operate.

Description

A kind of electromagnetic attracting force is measured the instrument of cyto-mechanics performance

Technical field

The utility model belongs to biomedical engineering field, relates to the instrument that a kind of electromagnetic attracting force is measured cyto-mechanics performance.

Background technology

Along with developing rapidly of biomedical engineering research, the Quantitative study of cell microcosmic function and characteristic strengthens day by day, the measuring method of single celled mechanical property is also constantly developing and is enriching, but on the whole, current measuring method is still less, and exist costly, the problems such as measuring accuracy is low: means of micropipette aspiration technique is applied to mechanocytobiology research in early days, but it is low to be confined to flux, can only realize Single cell analysis at every turn, and because the tested person cycle is longer, the external restriction that is difficult to maintain for a long time cell function state, be difficult to obtain the statistic data of large sample, atomic force microscopy develops on technique of scan tunnel microscope basis, possesses more wide application space, but is difficult to record the interaction of intermolecular low bonding strength, and protein purification is relative loaded down with trivial details with the process that functionalization characterizes, it is to complete with a kind of on-mechanical way of contact the instrument of controlling that light tweezer is controlled technology, but it is not suitable for the molecular system that action intensity is large, and to temperature sensitive, is subject to the impact of carrier pedesis, parallel-flow chamber technology is a kind of up-to-date experimental technique that approaches physiological conditions, but under shear flow intermolecular two-dimentional reaction power theory and model not perfect, be difficult to quantize all sidedly the information of intermolecular combination and Dissociation.

Summary of the invention

The utility model, for the deficiencies in the prior art, has proposed the instrument that a kind of electromagnetic attracting force is measured cyto-mechanics performance.

The utility model comprises DA modular converter, minimum systematic module, liquid crystal control module, output isolation module and power module.

Described DA modular converter comprises the first resonant resistance R24, the first passive crystal oscillator X1, the first shunt capacitance C20, the second shunt capacitance C21, the first filter capacitor C19, the first current-limiting resistance R22, the second current-limiting resistance R23, the first straight cutting LED lamp DS5, the second straight cutting LED lamp DS6, the one DB9 interface J3, DA chip U9, FLASH chips W 1.

DA chip U9 the 1st pin connects TOIM-RST pin; DA chip U9 the 2nd pin connects TOIM-BR pin; DA chip U9 the 3rd pin connects RD232 pin; DA chip U9 the 4th pin connects TD232 pin; Pin is unsettled does not connect for DA chip U9 the 5th; DA chip U9 the 6th pin joins with one end of the first resonant resistance R24, one end of one end of the first shunt capacitance C20, the first passive crystal oscillator X1; One end of the other end of the other end of the first resonant resistance R24 and the first passive crystal oscillator X1, DA chip U9 the 7th pin, the second shunt capacitance C21 joins; One end of the other end of the second shunt capacitance C21 and the first shunt capacitance C20 joins and meets GND; DA chip U9 the 8th pin meets GND; One end of DA chip U9 the 9th pin and the second current-limiting resistance R23 joins; The negative electrode of the other end of the second current-limiting resistance R23 and the second straight cutting LED lamp DS6 joins; One end of DA chip U9 the 10th pin and the first current-limiting resistance R22 joins; The negative electrode of the other end of the first current-limiting resistance R22 and the first straight cutting LED lamp DS5 joins; The anode of the anode of the first straight cutting LED lamp DS5, the second straight cutting LED lamp DS6 is connected with power supply VCC3.3; DA chip U9 the 11st, 12,13 pins are unsettled; The 2nd pin of the 14th pin of DA chip U9 and a DB9 interface J3 joins; The 6th pin of the 15th pin of DA chip U9 and a DB9 interface J3 joins; The 16th pin of DA chip U9 and one end and the power supply VCC3.3 of the first filter capacitor C19 join; Another termination GND of the first filter capacitor C19.The 1st pin of FLASH chips W 1 is connected with pin FLASH_CS; The 2nd pin of FLASH chips W 1 is connected with pin SPI1_MISO; The 3rd, 7,8 pins of FLASH chips W 1 are connected with power supply VCC3.3; The 4th pin of FLASH chips W 1 is connected with GND; The 5th pin of FLASH chips W 1 is connected with pin SPI1_MOSI; The 6th pin of FLASH chips W 1 is connected with pin SPI1_SCK.

Described minimum systematic module comprises chip STM1, the first active crystal oscillator U1, the second filter capacitor C2, the 3rd filter capacitor C3, the 4th filter capacitor C6, the 5th filter capacitor C7, the 6th filter capacitor C1, the 7th filter capacitor C5, the first inductance L 1, the first connector U2, the second connector U3, chip STM1 model is STM32F103RBT6.

The 5th pin of chip STM1 connects the 4th pin of the first active crystal oscillator U1; The 1st pin of the first active crystal oscillator U1 connects that the 2nd pin of power supply VCC3.3, the first active crystal oscillator U1 is unsettled, the 3rd pin ground connection of the first active crystal oscillator U1; The 12nd pin of chip STM1 meets the negative electrode of the second filter capacitor C2, one end and the GND of the 3rd filter capacitor C3; The 13rd pin of chip STM1 connects the positive pole of the second filter capacitor C2, one end of the other end of the 3rd filter capacitor C3, the first inductance L 1; Another termination power VCC3.3 of the first inductance L 1; The 18th pin of chip STM1 connects one end of GND, the 4th filter capacitor C6; The 19th pin of another chip termination STM1 of the 4th filter capacitor C6; The 31st pin of chip STM1 connects one end of GND, the 5th filter capacitor C7; The 32nd pin of another chip termination STM1 of the 5th filter capacitor C7; The 47th pin of chip STM1 connects one end of GND, the 7th filter capacitor C5; The 48th pin of another termination power VCC3.3 of the 7th filter capacitor C5 and chip STM1.The 63rd pin of chip STM1 connects one end of GND, the 6th filter capacitor C1; The 64th pin of another termination power VCC3.3 of the 6th filter capacitor C1 and chip STM1, the 1st pin of the first connector U2 meets pin SW3, the 2nd pin meets pin SW2, the 4th pin meets pin SW1, the 8th pin meets pin SW0, and the 1st pin of the second connector U3 meets pin SW7, and the 2nd pin meets pin SW6, the 4th pin meets pin SW5, and the 8th pin meets pin SW4.

Described liquid crystal control module comprises the 3rd connector U4, Liquid Crystal Module U6, the first pull down resistor R9, the second pull down resistor R11, the 3rd current-limiting resistance R17, the 3rd straight cutting LED lamp DS4, the 8th filter capacitor C16, the 9th filter capacitor C15, the first pull-up resistor R14, the second pull-up resistor R15, the 3rd pull down resistor R16, the 4th pull down resistor R18, the 5th pull down resistor R19.

The 1st pin of Liquid Crystal Module U6 is connected with one end of the first pull down resistor R9; The other end of the first pull down resistor R9 is connected with GND; The 2nd pin of Liquid Crystal Module U6 is connected with pin XWR; The 3rd pin of Liquid Crystal Module U6 is connected with GND; The 4th pin of Liquid Crystal Module U6 is connected with pin XRD; The 5th pin of Liquid Crystal Module U6 is connected with the 4th pin of the 3rd connector U4; The 6th pin of Liquid Crystal Module U6 is connected with GND; The 7th pin of Liquid Crystal Module U6 is unsettled; The 8th pin of Liquid Crystal Module U6 is connected with one end of the second pull down resistor R11; The other end of the second pull down resistor R11 is connected with GND; The 9th pin of Liquid Crystal Module U6 is connected with pin INT0; The 10th pin of Liquid Crystal Module U6 is connected with pin AB10; The 13rd pin of Liquid Crystal Module U6 is connected with the negative electrode of the 3rd straight cutting LED lamp DS4; The anode of the 3rd straight cutting LED lamp DS4 is connected with one end of the 3rd current-limiting resistance R17; The other end of the 3rd current-limiting resistance R17 is connected with power supply VCC3.3; The 17th pin of Liquid Crystal Module U6 and one end, the GND of the 8th filter capacitor C16 are connected; The 18th pin of Liquid Crystal Module U6 and the other end, the power supply VCC3.3 of the 8th filter capacitor C16 are connected; The 23rd pin of Liquid Crystal Module U6 is connected with one end of the 5th pull down resistor R19; The 24th pin of Liquid Crystal Module U6 is connected with one end of the 4th pull down resistor R18; The other end of the 4th pull down resistor R18, another termination GND of the 5th pull down resistor R19; The 28th pin of Liquid Crystal Module U6 meets GND; The 33rd pin of Liquid Crystal Module U6 connects one end of the 3rd pull down resistor R16; Another termination GND of the 3rd pull down resistor R16; The 34th pin of Liquid Crystal Module U6 connects one end of the second pull-up resistor R15, and the 35th pin connects one end of the first pull-up resistor R14, another termination power VCC3.3 of the other end of the first pull-up resistor R14, the second pull-up resistor R15; The 38th pin of Liquid Crystal Module U6 meets one end and the GND of the 9th filter capacitor C15, and the 39th pin meets the other end and the power supply VCC3.3 of the 9th filter capacitor C15.

Described output isolation module comprises the tenth filter capacitor C10, the 3rd pull-up resistor R7, the 4th current-limiting resistance R12, the 11 filter capacitor C11, the first matched resistance R8, the second matched resistance R10, the 3rd matched resistance R13, the 2nd DB9 interface J1 and the first isolation module U7.

The 1st pin of the first isolation module U7 and one end of the tenth filter capacitor C10, one end of the 3rd pull-up resistor R7 and power supply VCC3.3 be connected; The other end of the tenth filter capacitor C10 is connected with GND; The 2nd pin of the first isolation module U7 is connected with GND; The 3rd pin of the first isolation module U7 is connected with pin RXD-ADM; The 4th, 5 pins of the first isolation module U7 are connected with pin RTS-ADM; The 6th pin of the first isolation module U7 is connected with pin TXD-ADM; The 7th pin of the first isolation module U7 is connected with the other end of the 3rd pull-up resistor R7; The 8th pin of the first isolation module U7 and one end and the GND of the 4th current-limiting resistance R12 are connected; The other end of the 4th current-limiting resistance R12 is connected with pin RTS-ADM; The 9th pin of the first isolation module U7 is connected with 0V_iso; The first isolation module U7 the 10th, 11,14 pin is unsettled does not connect; The 3rd pin, one end of the second matched resistance R10, one end of the 3rd matched resistance R13 of the 12nd pin of the first isolation module U7 and the 2nd DB9 interface J1 are connected; The 8th pin of the 13rd pin of the first isolation module U7 and the 2nd DB9 interface J1, one end of the first matched resistance R8, the other end of the second matched resistance R10 is connected; The other end of the first matched resistance R8 is connected with+5V_iso; The other end of the 3rd matched resistance R13 is connected with 0V_iso; The 15th pin of the first isolation module U7 is connected with 0V_iso; The 16th pin of the first isolation module U7 and one end of the 11 filter capacitor C11 and+5V_iso is connected; The other end of the 11 filter capacitor C11 is connected with 0V_iso.

Described power module comprises the first power isolation module U5, the 12 filter capacitor C9, the 13 filter capacitor C12, the 14 filter capacitor C13, the first Zener diode D1, the 4th connector JPU1, the 5th connector J2, the 6th connector JP2, a 3.3V voltage stabilizing chip L2, the 15 filter capacitor C8, the 16 filter capacitor C14.

The 1st pin of the first power isolation module U5 is connected with one end of power supply VCC5.0, the 12 filter capacitor C9; The 2nd pin of the first power isolation module U5 and the other end, the GND of the 12 filter capacitor C9 are connected; The 3rd pin of the first power isolation module U5 is connected with OV_iso, the 13 one end of filter capacitor C12, the anode of one end of the 14 filter capacitor C13, the first Zener diode D1; The 4th pin of the first power isolation module U5 is connected with+5V_iso, the 13 the other end of filter capacitor C12, the negative electrode of the other end of the 14 filter capacitor C13, the first Zener diode D1.

The positive pole that the 1st pin of the one 3.3V voltage stabilizing chip L2 meets power supply VCC5.0, the 15 filter capacitor C8 is connected; The positive pole that the 3rd pin of the one 3.3V voltage stabilizing chip L2 meets power supply VCC3.3, the 16 filter capacitor C14 is connected; The 2nd pin of the one 3.3V voltage stabilizing chip L2 is connected with GND, the 15 negative electrode of filter capacitor C8, the negative electrode of the 16 filter capacitor C14; The 1st pin of the 4th connector JPU1 is connected with pin USART1-RXD; The 2nd pin of the 4th connector JPU1 is connected with pin USART1-TXD; The 3rd pin of the 4th connector JPU1 is connected with GND.No. 1 pin of the 5th connector J2 meets VCC5.0V, the 2nd pin ground connection, and the 1st, the 3 pin ground connection of the 6th connector JP2, the 2nd pin meets BOOT1, and the 4th pin meets B00T0.

Described DA chip U9 model is DAC0832, and Liquid Crystal Module U6 model is xpt2046, and the first isolation module U7 model is BS12W12, and chip STM1 model is STM32F103RBT6.

The utility model compared with prior art, the beneficial effect having is: the utility model can regulate size of current to produce the magnetic field of varying strength, under the effect in magnetic field, can measure the mechanical property of processed cell to be measured, the data transmission recording is preserved to computer.

The small and exquisite exquisiteness of the utility model, be easy to carry, use wide, simple in structure, easy handling, greatly reduces the threshold of cell biomechanics research, has facilitated the measurement of cyto-mechanics performance.

Accompanying drawing explanation

Fig. 1 is hardware configuration entire block diagram;

Fig. 2 is DA modular converter circuit;

Fig. 3 is master control S minimum systematic module circuit;

Fig. 4 is liquid crystal control module circuit;

Fig. 5 is isolation module circuit;

Fig. 6 is power management module circuit;

Fig. 7 is cyto-mechanics performance measurement mode figure.

Embodiment

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

As shown in Figure 1, the utility model comprises DA modular converter, minimum systematic module, liquid crystal control module, output isolation module and power module.

As shown in Figure 2, DA modular converter comprises the first resonant resistance R24, the first passive crystal oscillator X1, the first shunt capacitance C20, the second shunt capacitance C21, the first filter capacitor C19, the first current-limiting resistance R22, the second current-limiting resistance R23, the first straight cutting LED lamp DS5, the second straight cutting LED lamp DS6, a DB9 interface J3, DA chip U9, FLASH chips W 1.

As shown in Figure 3, minimum systematic module comprises chip STM1, the first active crystal oscillator U1, the second filter capacitor C2, the 3rd filter capacitor C3, the 4th filter capacitor C6, the 5th filter capacitor C7, the 6th filter capacitor C1, the 7th filter capacitor C5, the first inductance L 1, the first connector U2, the second connector U3, chip STM1 model is STM32F103RBT6.

As shown in Figure 4, liquid crystal control module comprises the 3rd connector U4, Liquid Crystal Module U6, the first pull down resistor R9, the second pull down resistor R11, the 3rd current-limiting resistance R17, the 3rd straight cutting LED lamp DS4, the 8th filter capacitor C16, the 9th filter capacitor C15, the first pull-up resistor R14, the second pull-up resistor R15, the 3rd pull down resistor R16, the 4th pull down resistor R18, the 5th pull down resistor R19.

As shown in Figure 5, output isolation module comprises the tenth filter capacitor C10, the 3rd pull-up resistor R7, the 4th current-limiting resistance R12, the 11 filter capacitor C11, the first matched resistance R8, the second matched resistance R10, the 3rd matched resistance R13, the 2nd DB9 interface J1 and the first isolation module U7.

As shown in Figure 6, power module comprises the first power isolation module U5, the 12 filter capacitor C9, the 13 filter capacitor C12, the 14 filter capacitor C13, the first Zener diode D1, the 4th connector JPU1, the 5th connector J2, the 6th connector JP2, the one 3.3V voltage stabilizing chip L2, the 15 filter capacitor C8, the 16 filter capacitor C14.

As shown in Figure 7: this instrument one is divided into 5 modules, DA conversion, main control chip STM32F103RBT6 minimum systematic module, lcd touch panel module, output isolation module, power module; DA conversion is the core of this system, and its precision has determined the precision of outward current, and controller adopts micro-chip STM32F103RBT6, and isolation module adopts BSW DC-DC 12V-5V module, power acquisition LM2596.

The benchmark reason power management module of DA modular converter provides, thereby its function is the size of controlling by electromagnet current, changes magnetic field; STM32F103 is 32 ARM microcontrollers, controls DA modular converter and liquid crystal control module; Liquid crystal control module is the interface of display interface and man-machine interaction touch screen; For the safety problem of whole system, set up isolation module; Power management module is main control chip, and liquid crystal control module and isolation module provide power supply, and DA modular converter connects respectively two solenoids in left and right, for generation of electromagnetic field, the cell of processing is measured.

Claims

1. electromagnetic attracting force is measured an instrument for cyto-mechanics performance, comprises DA modular converter, and minimum systematic module, liquid crystal control module, output isolation module and power module, is characterized in that:

Described DA modular converter comprises the first resonant resistance R24, the first passive crystal oscillator X1, the first shunt capacitance C20, the second shunt capacitance C21, the first filter capacitor C19, the first current-limiting resistance R22, the second current-limiting resistance R23, the first straight cutting LED lamp DS5, the second straight cutting LED lamp DS6, the one DB9 interface J3, DA chip U9, FLASH chips W 1;

DA chip U9 the 1st pin connects TOIM-RST pin; DA chip U9 the 2nd pin connects TOIM-BR pin; DA chip U9 the 3rd pin connects RD232 pin; DA chip U9 the 4th pin connects TD232 pin; Pin is unsettled does not connect for DA chip U9 the 5th; DA chip U9 the 6th pin joins with one end of the first resonant resistance R24, one end of one end of the first shunt capacitance C20, the first passive crystal oscillator X1; One end of the other end of the other end of the first resonant resistance R24 and the first passive crystal oscillator X1, DA chip U9 the 7th pin, the second shunt capacitance C21 joins; One end of the other end of the second shunt capacitance C21 and the first shunt capacitance C20 joins and meets GND; DA chip U9 the 8th pin meets GND; One end of DA chip U9 the 9th pin and the second current-limiting resistance R23 joins; The negative electrode of the other end of the second current-limiting resistance R23 and the second straight cutting LED lamp DS6 joins; One end of DA chip U9 the 10th pin and the first current-limiting resistance R22 joins; The negative electrode of the other end of the first current-limiting resistance R22 and the first straight cutting LED lamp DS5 joins; The anode of the anode of the first straight cutting LED lamp DS5, the second straight cutting LED lamp DS6 is connected with power supply VCC3.3; DA chip U9 the 11st, 12,13 pins are unsettled; The 2nd pin of the 14th pin of DA chip U9 and a DB9 interface J3 joins; The 6th pin of the 15th pin of DA chip U9 and a DB9 interface J3 joins; The 16th pin of DA chip U9 and one end and the power supply VCC3.3 of the first filter capacitor C19 join; Another termination GND of the first filter capacitor C19; The 1st pin of FLASH chips W 1 is connected with pin FLASH_CS; The 2nd pin of FLASH chips W 1 is connected with pin SPI1_MISO; The 3rd, 7,8 pins of FLASH chips W 1 are connected with power supply VCC3.3; The 4th pin of FLASH chips W 1 is connected with GND; The 5th pin of FLASH chips W 1 is connected with pin SPI1_MOSI; The 6th pin of FLASH chips W 1 is connected with pin SPI1_SCK;

Described minimum systematic module comprises chip STM1, the first active crystal oscillator U1, the second filter capacitor C2, the 3rd filter capacitor C3, the 4th filter capacitor C6, the 5th filter capacitor C7, the 6th filter capacitor C1, the 7th filter capacitor C5, the first inductance L 1, the first connector U2, the second connector U3;

The 5th pin of chip STM1 connects the 4th pin of the first active crystal oscillator U1; The 1st pin of the first active crystal oscillator U1 connects that the 2nd pin of power supply VCC3.3, the first active crystal oscillator U1 is unsettled, the 3rd pin ground connection of the first active crystal oscillator U1; The 12nd pin of chip STM1 meets the negative electrode of the second filter capacitor C2, one end and the GND of the 3rd filter capacitor C3; The 13rd pin of chip STM1 connects the positive pole of the second filter capacitor C2, one end of the other end of the 3rd filter capacitor C3, the first inductance L 1; Another termination power VCC3.3 of the first inductance L 1; The 18th pin of chip STM1 connects one end of GND, the 4th filter capacitor C6; The 19th pin of another chip termination STM1 of the 4th filter capacitor C6; The 31st pin of chip STM1 connects one end of GND, the 5th filter capacitor C7; The 32nd pin of another chip termination STM1 of the 5th filter capacitor C7; The 47th pin of chip STM1 connects one end of GND, the 7th filter capacitor C5; The 48th pin of another termination power VCC3.3 of the 7th filter capacitor C5 and chip STM1; The 63rd pin of chip STM1 connects one end of GND, the 6th filter capacitor C1; The 64th pin of another termination power VCC3.3 of the 6th filter capacitor C1 and chip STM1, the 1st pin of the first connector U2 meets pin SW3, the 2nd pin meets pin SW2, the 4th pin meets pin SW1, the 8th pin meets pin SW0, and the 1st pin of the second connector U3 meets pin SW7, and the 2nd pin meets pin SW6, the 4th pin meets pin SW5, and the 8th pin meets pin SW4;

Described liquid crystal control module comprises the 3rd connector U4, Liquid Crystal Module U6, the first pull down resistor R9, the second pull down resistor R11, the 3rd current-limiting resistance R17, the 3rd straight cutting LED lamp DS4, the 8th filter capacitor C16, the 9th filter capacitor C15, the first pull-up resistor R14, the second pull-up resistor R15, the 3rd pull down resistor R16, the 4th pull down resistor R18, the 5th pull down resistor R19;

The 1st pin of Liquid Crystal Module U6 is connected with one end of the first pull down resistor R9; The other end of the first pull down resistor R9 is connected with GND; The 2nd pin of Liquid Crystal Module U6 is connected with pin XWR; The 3rd pin of Liquid Crystal Module U6 is connected with GND; The 4th pin of Liquid Crystal Module U6 is connected with pin XRD; The 5th pin of Liquid Crystal Module U6 is connected with the 4th pin of the 3rd connector U4; The 6th pin of Liquid Crystal Module U6 is connected with GND; The 7th pin of Liquid Crystal Module U6 is unsettled; The 8th pin of Liquid Crystal Module U6 is connected with one end of the second pull down resistor R11; The other end of the second pull down resistor R11 is connected with GND; The 9th pin of Liquid Crystal Module U6 is connected with pin INT0; The 10th pin of Liquid Crystal Module U6 is connected with pin AB10; The 13rd pin of Liquid Crystal Module U6 is connected with the negative electrode of the 3rd straight cutting LED lamp DS4; The anode of the 3rd straight cutting LED lamp DS4 is connected with one end of the 3rd current-limiting resistance R17; The other end of the 3rd current-limiting resistance R17 is connected with power supply VCC3.3; The 17th pin of Liquid Crystal Module U6 and one end, the GND of the 8th filter capacitor C16 are connected; The 18th pin of Liquid Crystal Module U6 and the other end, the power supply VCC3.3 of the 8th filter capacitor C16 are connected; The 23rd pin of Liquid Crystal Module U6 is connected with one end of the 5th pull down resistor R19; The 24th pin of Liquid Crystal Module U6 is connected with one end of the 4th pull down resistor R18; The other end of the 4th pull down resistor R18, another termination GND of the 5th pull down resistor R19; The 28th pin of Liquid Crystal Module U6 meets GND; The 33rd pin of Liquid Crystal Module U6 connects one end of the 3rd pull down resistor R16; Another termination GND of the 3rd pull down resistor R16; The 34th pin of Liquid Crystal Module U6 connects one end of the second pull-up resistor R15, and the 35th pin connects one end of the first pull-up resistor R14, another termination power VCC3.3 of the other end of the first pull-up resistor R14, the second pull-up resistor R15; The 38th pin of Liquid Crystal Module U6 meets one end and the GND of the 9th filter capacitor C15, and the 39th pin meets the other end and the power supply VCC3.3 of the 9th filter capacitor C15;

Described output isolation module comprises the tenth filter capacitor C10, the 3rd pull-up resistor R7, the 4th current-limiting resistance R12, the 11 filter capacitor C11, the first matched resistance R8, the second matched resistance R10, the 3rd matched resistance R13, the 2nd DB9 interface J1 and the first isolation module U7;

The 1st pin of the first isolation module U7 and one end of the tenth filter capacitor C10, one end of the 3rd pull-up resistor R7 and power supply VCC3.3 be connected; The other end of the tenth filter capacitor C10 is connected with GND; The 2nd pin of the first isolation module U7 is connected with GND; The 3rd pin of the first isolation module U7 is connected with pin RXD-ADM; The 4th, 5 pins of the first isolation module U7 are connected with pin RTS-ADM; The 6th pin of the first isolation module U7 is connected with pin TXD-ADM; The 7th pin of the first isolation module U7 is connected with the other end of the 3rd pull-up resistor R7; The 8th pin of the first isolation module U7 and one end and the GND of the 4th current-limiting resistance R12 are connected; The other end of the 4th current-limiting resistance R12 is connected with pin RTS-ADM; The 9th pin of the first isolation module U7 is connected with 0V_iso; The first isolation module U7 the 10th, 11,14 pin is unsettled does not connect; The 3rd pin, one end of the second matched resistance R10, one end of the 3rd matched resistance R13 of the 12nd pin of the first isolation module U7 and the 2nd DB9 interface J1 are connected; The 8th pin of the 13rd pin of the first isolation module U7 and the 2nd DB9 interface J1, one end of the first matched resistance R8, the other end of the second matched resistance R10 is connected; The other end of the first matched resistance R8 is connected with+5V_iso; The other end of the 3rd matched resistance R13 is connected with 0V_iso; The 15th pin of the first isolation module U7 is connected with 0V_iso; The 16th pin of the first isolation module U7 and one end of the 11 filter capacitor C11 and+5V_iso is connected; The other end of the 11 filter capacitor C11 is connected with 0V_iso;

Described power module comprises the first power isolation module U5, the 12 filter capacitor C9, the 13 filter capacitor C12, the 14 filter capacitor C13, the first Zener diode D1, the 4th connector JPU1, the 5th connector J2, the 6th connector JP2, a 3.3V voltage stabilizing chip L2, the 15 filter capacitor C8, the 16 filter capacitor C14;

The 1st pin of the first power isolation module U5 is connected with one end of power supply VCC5.0, the 12 filter capacitor C9; The 2nd pin of the first power isolation module U5 and the other end, the GND of the 12 filter capacitor C9 are connected; The 3rd pin of the first power isolation module U5 is connected with OV_iso, the 13 one end of filter capacitor C12, the anode of one end of the 14 filter capacitor C13, the first Zener diode D1; The 4th pin of the first power isolation module U5 is connected with+5V_iso, the 13 the other end of filter capacitor C12, the negative electrode of the other end of the 14 filter capacitor C13, the first Zener diode D1;

The positive pole that the 1st pin of the one 3.3V voltage stabilizing chip L2 meets power supply VCC5.0, the 15 filter capacitor C8 is connected; The positive pole that the 3rd pin of the one 3.3V voltage stabilizing chip L2 meets power supply VCC3.3, the 16 filter capacitor C14 is connected; The 2nd pin of the one 3.3V voltage stabilizing chip L2 is connected with GND, the 15 negative electrode of filter capacitor C8, the negative electrode of the 16 filter capacitor C14; The 1st pin of the 4th connector JPU1 is connected with pin USART1-RXD; The 2nd pin of the 4th connector JPU1 is connected with pin USART1-TXD; The 3rd pin of the 4th connector JPU1 is connected with GND; No. 1 pin of the 5th connector J2 meets VCC5.0V, the 2nd pin ground connection, and the 1st, the 3 pin ground connection of the 6th connector JP2, the 2nd pin meets BOOT1, and the 4th pin meets B00T0;