CN103439370A - Temperature and humidity detection system in drying process - Google Patents

Temperature and humidity detection system in drying process Download PDF

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Publication number
CN103439370A
CN103439370A CN2013103353373A CN201310335337A CN103439370A CN 103439370 A CN103439370 A CN 103439370A CN 2013103353373 A CN2013103353373 A CN 2013103353373A CN 201310335337 A CN201310335337 A CN 201310335337A CN 103439370 A CN103439370 A CN 103439370A
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China
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reverse
current
protection diode
limiting resistance
pins
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CN2013103353373A
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CN103439370B (en
Inventor
刘俊
邱黄亮
刘法龙
陈华杰
谷雨
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Jiangsu Xinzhong Enterprise Management Co ltd
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Hangzhou Dianzi University
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Abstract

The invention relates to a multichannel temperature and humidity detection system which comprises a power supply module, a control module, a detection module, a wireless communication module and a data storage module, wherein the power supply module is used for supplying power to the other modules; the control module is used for controlling the detection module, the wireless communication module and the data storage module, reading and analyzing instant temperature and humidity values detected and acquired by the detection module, and comparing the values with set values in the data storage module; and the data storage module is used for storing temperature and humidity data detected in real time. The system can detect the temperature and humidity values in a drying process in a multichannel manner, so that the temperature and humidity detection precision and the temperature and humidity detection accuracy are improved; and real-time monitoring is conducted by wireless communication, the detected values are analyzed and compared with the set values, and when the detected values are higher than the set temperature and humidity values, a corresponding control signal is output automatically, so that the problems that the existing temperature and humidity detection system is low in efficiency, poor in real-time performance and low in intelligent control degree are solved.

Description

The humiture detection system of drying course
Technical field
The invention belongs to the industrial control technology field, relate to the humiture detection system of drying course, is a kind of based on AVR Atmega16 single-chip microcomputer multichannel humiture detection system specifically.
Background technology
Temperature and humidity is parameter common and the most basic in commercial production, often need carry out detecting & monitoring to humiture in process of production.In commercial production of today, drying course is all application to some extent in many technological process of productions, and temperature and the relative humidity that in drying course, must strictly will control environment, remain in certain scope it.Otherwise the normal production course of reaction that will affect technique even may cause accident to occur.
Existing temperature and humidity measurement is at the built-in Hygrothermograph of drying oven, the instant actual humiture in the reading displayed drying oven, and these all depend on manually and are operated, waste time and energy, inefficiency, poor accuracy, real-time is poor, and intelligent control degree is low.
Summary of the invention
The problem existed in order to solve prior art, the invention provides a kind of based on AVR Atmega16 single-chip microcomputer humiture detection system, carry out multichannel and detect the humiture data, then by wireless device be sent to the enterprising line number of main control computer according to the show, data analysis processes and automatically carries out Real-Time Monitoring.
The present invention includes power module, control module, detection module, wireless communication module and data memory module.Power module is control module, detection module, and wireless communication module and data memory module are powered.Detection module carries out the multi-channel sampling processing to its humiture information of drying course, and the simulating signal that temperature-humidity signal is transformed into 0-5 volt is sent into to control module.Control module is obtained the temperature-humidity signal of being exported by sensor and carries out respective handling by the AD sample detecting.The data memory module storage detects the data of gained; Wireless communication module is shown humiture communication to the host computer detected in drying unit.
Power module comprises the first voltage stabilizing chip LM2940, the second voltage stabilizing chip LM1117, the first reverse voltage-stabilizing protection diode D1, the second reverse voltage-stabilizing protection diode D2, reverse connecting protection diode D3, the first filter capacitor C1, the second filter capacitor C2, the 3rd filter capacitor C3, the 4th filter capacitor C4, the 5th filter capacitor C5, the 6th filter capacitor C6, the 7th filter capacitor C7, the 8th filter capacitor C8, the first filter inductance L1, the first LED 1, the first divider resistance R1, button S1.
The total power supply of 12V that the termination of button S1 is given, the anode of another termination reverse connecting protection diode D3 of button S1, the negative electrode of reverse connecting protection diode D3 respectively with the positive pole of the first filter capacitor C1, the end of the first filter inductance L1 joins, the other end of the first filter inductance L1 and the first reverse voltage-stabilizing protection diode D1 negative electrode, the Vin pin of the end of the second filter capacitor C2 and the first voltage stabilizing chip LM2940 joins, the negative pole of the first filter capacitor C1, the GND pin ground connection of the second filter capacitor C2 other end and the first voltage stabilizing chip LM2940, the end of the Vout pin of the first voltage stabilizing chip LM2940 and the 3rd filter capacitor C3, the positive pole of the 4th filter capacitor C4, the anode of the first LED 1 joins and 5V, the negative pole of the 3rd filter capacitor C3 other end and the 4th filter capacitor C4, one end of the first divider resistance is connected on ground, the negative electrode of the other end of the first divider resistance and the first LED 1 joins, the positive pole of the 5th filter capacitor C5, the end of the 6th filter capacitor C6, the Vin pin of the negative electrode of the second reverse voltage-stabilizing protection diode D2 and the second voltage stabilizing chip LM1117 joins, the negative pole of the 5th filter capacitor C5, the GND pin of the other end of the 6th filter capacitor C6 and the second voltage stabilizing chip LM1117 is connected on ground, the anode of the Vout pin of the second voltage stabilizing chip LM1117 and the second reverse voltage-stabilizing protection diode D2, the end of the 7th filter capacitor C7, the positive pole of the 8th filter capacitor C8 is connected on 3.3V, the minus earth of the other end of the 7th filter capacitor C7 and the 8th filter capacitor C8.
Control module comprises control chip Atmega16, the 9th filter capacitor C9, the tenth filter capacitor C10, the 11 filter capacitor C11, the 12 filter capacitor C12, the 13 filter capacitor C13, the 14 filter capacitor C14, the second divider resistance R2, the 3rd divider resistance R3, the 4th divider resistance R4, PNP triode Q1, hummer LS1, and clock crystal oscillator Y1.
No. 1 pin of control chip Atmega16 connects No. 6 pins of radio communication mold chip block NRF2401; No. 2 pins connect No. 7 pins of radio communication mold chip block NRF2401; No. 3 pins connect No. 5 pins of radio communication mold chip block NRF2401; No. 4 pin connects the end of the second divider resistance R2 and the positive pole of the 14 filter capacitor C14, the 5V operating voltage that another termination power module of the second divider resistance R2 provides, the minus earth of the 14 filter capacitor C14; No. 5 pin connects the 5V operating voltage that power module provides; No. 6 pin ground connection; No. 7 pin joins with the end of the 12 filter capacitor C12 and the end of clock crystal oscillator Y1; No. 8 pin joins with the other end of clock crystal oscillator Y1 and the end of the 13 filter capacitor C13, and the other end of the 12 filter capacitor C12 and the other end of the 13 filter capacitor C13 are connected on ground; No. 17 pin joins with the end of the 11 filter capacitor C11 and the 5V operating voltage that power module provides; No. 18 pin ground connection; The other end of No. 29 pins and the 9th filter capacitor C9 joins; No. 40 pins connect the end of the 4th divider resistance R4, the base stage of the 4th another termination of divider resistance R4 PNP triode Q1, the grounded collector of PNP triode Q1, emitter connects the end of hummer LS1 and the end of the 3rd divider resistance R3, anode and the 5V power supply of another termination the second LED 2 of hummer LS1, the negative electrode of the second LED 2 connects the other end of the 3rd divider resistance R3.
Detection module comprises 4 sensors, the 8th current-limiting resistance R8, the 9th current-limiting resistance R9, the tenth current-limiting resistance R10, the 11 current-limiting resistance R11, the 12 current-limiting resistance R12, the 13 current-limiting resistance R13, the 14 current-limiting resistance R14, the 15 current-limiting resistance R15, the 16 current-limiting resistance R16, the 17 current-limiting resistance R17, the 18 current-limiting resistance R18, the 19 current-limiting resistance R19, the 20 current-limiting resistance R20, the 21 current-limiting resistance R21, the 22 current-limiting resistance R22, the 23 current-limiting resistance R23, reverse connecting protection diode D4, reverse connecting protection diode D5, reverse connecting protection diode D6, reverse connecting protection diode D7, reverse connecting protection diode D8, reverse connecting protection diode D9, reverse connecting protection diode D10, reverse connecting protection diode D11, reverse connecting protection diode D12, reverse connecting protection diode D13, reverse connecting protection diode D14, reverse connecting protection diode D15, reverse connecting protection diode D16, reverse connecting protection diode D17, reverse connecting protection diode D18, reverse connecting protection diode D19.
No. 1 pin of first sensor connects the 12V voltage that power module provides; No. 2 pin ground connection of first sensor; No. 3 pins of first sensor connect the end of the 9th current-limiting resistance R9, the negative electrode of the anode of the end of the other end of the 9th current-limiting resistance R9 and the 8th current-limiting resistance R8, reverse connecting protection diode D4, reverse connecting protection diode D5 joins, the negative electrode of reverse connecting protection diode D4 connects the 5V operating voltage that power module provides, the plus earth of reverse connecting protection diode D5, No. 37 pins of the other end of the 8th current-limiting resistance R8 and control chip Atmega16 join; No. 4 pins of first sensor connect the end of the 11 current-limiting resistance R11; the negative electrode of the anode of the end of the other end of the 11 current-limiting resistance R11 and the tenth current-limiting resistance R10, reverse connecting protection diode D6, reverse connecting protection diode D7 joins; the negative electrode of reverse connecting protection diode D6 connects the 5V operating voltage that power module provides; the plus earth of reverse connecting protection diode D7, No. 36 pins of the other end of the tenth current-limiting resistance R10 and control chip Atmega16 join.
No. 1 pin of the second sensor connects the 12V voltage that power module provides; No. 2 pin ground connection of the second sensor; No. 3 pins of the second sensor connect the end of the 13 current-limiting resistance R13, the negative electrode of the anode of the end of the other end of the 13 current-limiting resistance R13 and the 12 current-limiting resistance R12, reverse connecting protection diode D8, reverse connecting protection diode D9 joins, the negative electrode of reverse connecting protection diode D8 connects the 5V operating voltage that power module provides, the plus earth of reverse connecting protection diode D9, No. 35 pins of the other end of the 12 current-limiting resistance R12 and control chip Atmega16 join; No. 4 pins of the second sensor connect the end of the 15 current-limiting resistance R15; the negative electrode of the anode of the end of the other end of the 15 current-limiting resistance R15 and the 14 current-limiting resistance R14, reverse connecting protection diode D10, reverse connecting protection diode D11 joins; the negative electrode of reverse connecting protection diode D10 connects the 5V operating voltage that power module provides; the plus earth of reverse connecting protection diode D11, No. 34 pins of the other end of the 14 current-limiting resistance R14 and control chip Atmega16 join.
No. 1 pin of the 3rd sensor connects the 12V voltage that power module provides; No. 2 pin ground connection of the 3rd sensor; No. 3 pins of the 3rd sensor connect the end of the 17 current-limiting resistance R17, the negative electrode of the anode of the end of the other end of the 17 current-limiting resistance R17 and the 16 current-limiting resistance R16, reverse connecting protection diode D12, reverse connecting protection diode D13 joins, the negative electrode of reverse connecting protection diode D12 connects the 5V operating voltage that power module provides, the plus earth of reverse connecting protection diode D13, No. 33 pins of the other end of the 16 current-limiting resistance R16 and control chip Atmega16 join; No. 4 pins of the 3rd sensor connect the end of the 19 current-limiting resistance R19; the negative electrode of the anode of the end of the other end of the 19 current-limiting resistance R19 and the 18 current-limiting resistance R18, reverse connecting protection diode D14, reverse connecting protection diode D15 joins; the negative electrode of reverse connecting protection diode D14 connects the 5V operating voltage that power module provides; the plus earth of reverse connecting protection diode D15, No. 32 pins of the other end of the 18 current-limiting resistance R18 and control chip Atmega16 join.
No. 1 pin of four-sensor connects the 12V voltage that power module provides; No. 2 pin ground connection of four-sensor; No. 3 pins of four-sensor connect the end of the 21 current-limiting resistance R21, the negative electrode of the anode of the end of the other end of the 21 current-limiting resistance R21 and the 20 current-limiting resistance R20, reverse connecting protection diode D16, reverse connecting protection diode D17 joins, the negative electrode of reverse connecting protection diode D16 connects the 5V operating voltage that power module provides, the plus earth of reverse connecting protection diode D17, No. 31 pins of the other end of the 20 current-limiting resistance R20 and control chip Atmega16 join; No. 4 pins of four-sensor connect the end of the 23 current-limiting resistance R23; the negative electrode of the anode of the end of the other end of the 23 current-limiting resistance R23 and the 22 current-limiting resistance R22, reverse connecting protection diode D18, reverse connecting protection diode D19 joins; the negative electrode of reverse connecting protection diode D18 connects the 5V operating voltage that power module provides; the plus earth of reverse connecting protection diode D19, No. 30 pins of the other end of the 22 current-limiting resistance R22 and control chip Atmega16 join.
What wireless communication module adopted is the NRF2401 chip.
No. 1 pin ground connection of NRF2401 chip; No. 2 pins connect power module provides the 3.3V operating voltage; No. 3 pins connect No. 42 pins of control chip Atmega16; No. 4 pins connect No. 44 pins of control chip Atmega16; No. 5 pins connect No. 3 pins of control chip Atmega16; No. 6 pins connect No. 1 pin of control chip Atmega16; No. 7 pins connect No. 2 pins of control chip Atmega16; No. 8 pins connect No. 41 pins of control chip Atmega16.
Data memory module comprises the 6th current-limiting resistance R6, the 7th current-limiting resistance R7, the 15 filter capacitor C15 and pin-saving chip AT24CXX.
No. 1 pin ground connection of AT24CXX chip; No. 2 pin ground connection; No. 3 pin ground connection; No. 4 pin ground connection; The end of No. 5 pins and No. 20 pins of control chip Atmega16 and the 7th current-limiting resistance R7 joins, and another termination power module of the 7th current-limiting resistance R7 provides the 5V operating voltage; The end of No. 6 pins and No. 19 pins of control chip Atmega16 and the 6th current-limiting resistance R6 joins, and another termination power module of the 6th current-limiting resistance R6 provides the 5V operating voltage; The end of No. 7 pins and the 15 filter capacitor C15 is connected on ground; The other end, the power module of No. 8 pins and the 15 filter capacitor C15 provide the 5V operating voltage to join.
Humiture detection system of the present invention can multichannel detects the humiture value of drying course, has improved like this precision and accuracy thereof that humiture detects; And carry out Real-Time Monitoring by radio communication, detected value and setting value are analyzed to comparison process, when the humiture value higher than setting, can automatically export corresponding control signal, overcome existing humiture detection system inefficiency, real-time is poor, the low problem of intelligent control degree.
The accompanying drawing explanation
Fig. 1 humiture testing circuit structural representation;
The power module circuitry schematic diagram that Fig. 2 humiture detects;
The control module circuit theory diagrams that Fig. 3 humiture detects;
The detection module circuit theory diagrams that Fig. 4 humiture detects;
The wireless communication module schematic diagram that Fig. 5 humiture detects
The data that Fig. 6 humiture detects are preserved module principle figure.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in drawings, shown in Fig. 1 is humiture testing circuit structural representation to specific embodiments of the invention, mainly power module, detection module, control module, wireless communication module and data memory module, consists of.
This humiture detection system workflow is as follows: detection module carries out the multi-channel sampling processing to its humiture information of drying course, and the simulating signal that temperature-humidity signal is transformed into 0-5 volt is sent into to controller.Then controller obtains the temperature-humidity signal of being exported by sensor and carries out respective handling by the AD sample detecting.And these real-time detector datas are kept in the middle of data memory module, by wireless communication module, humiture communication to the host computer detected in drying unit is shown to then analyzing and processing again, Real-Time Monitoring judges whether current humiture reaches predetermined standard.When the inside of drying unit humiture rises to warning value, controller sends warning by hummer, can make timely corresponding counter-measure like this.
As shown in Figure 2; power module comprises the first voltage stabilizing chip LM2940, the second voltage stabilizing chip LM1117, the first reverse voltage-stabilizing protection diode D1, the second reverse voltage-stabilizing protection diode D2, reverse connecting protection diode D3, the first filter capacitor C1, the second filter capacitor C2, the 3rd filter capacitor C3, the 4th filter capacitor C4, the 5th filter capacitor C5, the 6th filter capacitor C6, the 7th filter capacitor C7, the 8th filter capacitor C8, the first filter inductance L1, the first LED 1, the first divider resistance R1, button S1.
Because many processor module working powers are 5V, voltage stabilizing chip LM2940 converts operating voltage 12V step-down to 5V, for detection module, control module and data memory module provide the operating voltage of stable 5V, have added LED 1 as power light simultaneously.The total power supply of 12V that the termination of button S1 is given, the anode of another termination reverse connecting protection diode D3 of S1, the negative electrode of reverse connecting protection diode D3 respectively with the positive pole of the first filter capacitor C1, the end of the first filter inductance L1 joins, the other end of the first filter inductance L1 and the first reverse voltage-stabilizing protection diode D1 negative electrode, the Vin pin of the end of the second filter capacitor C2 and the first voltage stabilizing chip LM2940 joins, the negative pole of the first filter capacitor C1, the GND pin ground connection of the second filter capacitor C2 other end and the first voltage stabilizing chip LM2940, the end of the Vout pin of the first voltage stabilizing chip LM2940 and the 3rd filter capacitor C3, the positive pole of the 4th filter capacitor C4, the anode of the first LED 1 joins and 5V, the negative pole of the 3rd filter capacitor C3 other end and the 4th filter capacitor C4, one end of the first divider resistance is connected on ground, the negative electrode of the other end of the first divider resistance and the first LED 1 joins, the positive pole of the 5th filter capacitor C5, the end of the 6th filter capacitor C6 joins.
Equally, because the wireless communication module working power is 3.3V, thus use voltage stabilizing chip LM1117 to convert operating voltage 5V step-down to 3.3V, for wireless communication module provides the operating voltage of stable 5V.The negative electrode of the end of the Vin pin of voltage stabilizing chip LM1117 and the 6th filter capacitor C6 and the second reverse voltage-stabilizing protection diode D2 joins, the GND pin of the other end of the 6th filter capacitor C6 and the second voltage stabilizing chip LM1117 is connected on ground; The end of the anode of the Vout pin of the second voltage stabilizing chip LM1117 and the second reverse voltage-stabilizing protection diode D2, the 7th filter capacitor C7, the positive pole of the 8th filter capacitor C8 are connected on 3.3V; The minus earth of the other end of the 7th filter capacitor C7 and the 8th filter capacitor C8.
As shown in Figure 3, control module comprises control chip Atmega16, the 9th filter capacitor C9, the tenth filter capacitor C10, the 11 filter capacitor C11, the 12 filter capacitor C12, the 13 filter capacitor C13, the 14 filter capacitor C14, the second divider resistance R2, the 3rd divider resistance R3, the 4th divider resistance R4, PNP triode Q1, hummer LS1, and clock crystal oscillator Y1.
Control chip Atmega16 is that a kind of high performance-price ratio, high reliability, function are strong, high-speed, the High Performance SCM of low-power consumption and chip internal integrated multipath AD.No. 1 pin connects No. 6 pins of radio communication mold chip block NRF2401; No. 2 pins connect No. 7 pins of radio communication mold chip block NRF2401; No. 3 pins connect No. 5 pins of radio communication mold chip block NRF2401; No. 4 pin connects the end of the second divider resistance R2 and the positive pole of the 14 filter capacitor C14, the 5V operating voltage that another termination power module of the second divider resistance R2 provides, the minus earth of the 14 filter capacitor C14; No. 5 pin connects the 5V operating voltage that power module provides; No. 6 pin ground connection; No. 7 pin joins with the end of the 12 filter capacitor C12 and the end of clock crystal oscillator Y1; No. 8 pin joins with the other end of clock crystal oscillator Y1 and the end of the 13 filter capacitor C13, and the other end of the 12 filter capacitor C12 and the other end of the 13 filter capacitor C13 are connected on ground; No. 17 pin joins with the end of the 11 filter capacitor C11 and the 5V operating voltage that power module provides; No. 18 pin ground connection; No. 6 pins of No. 19 pins and data memory module pin-saving chip AT24CXX and the end of the 6th current-limiting resistance R6 join, the end of the end of the other end of the 6th current-limiting resistance R6 and the 7th dividing potential drop current limliting R7, the 5V operating voltage that power module provides, the 15 filter capacitor C15, No. 8 pins of data memory module pin-saving chip AT24CXX join, 1 of the other end of the 15 filter capacitor C15 and data memory module pin-saving chip AT24CXX, 2,3,4, No. 7 pin is connected on ground; No. 20 pin joins with the other end of the 7th current-limiting resistance R7 and No. 5 pins of data memory module pin-saving chip AT24CXX; No. 27 pin joins with the end of the 5th divider resistance R5 and the end of the tenth filter capacitor C10; No. 28 pins and the other end of the 11 filter capacitor C11, the other end of the tenth filter capacitor C10, the end of the 9th filter capacitor C9 are connected on ground; The other end of No. 29 pins and the 9th filter capacitor C9 joins; The end of No. 30 pins and the 22 current-limiting resistance R22 joins, the negative electrode of the anode of the end of the other end of the 22 current-limiting resistance R22 and the 23 current-limiting resistance R23, reverse connecting protection diode D18, reverse connecting protection diode D19 joins, the negative electrode of reverse connecting protection diode D18 connects the 5V operating voltage that power module provides, the plus earth of reverse connecting protection diode D19, No. 4 pins of another termination sensor 4 of the 23 current-limiting resistance R23; The end of No. 31 pins and the 20 current-limiting resistance R20 joins, the negative electrode of the anode of the end of the other end of the 20 current-limiting resistance R20 and the 21 current-limiting resistance R21, reverse connecting protection diode D16, reverse connecting protection diode D17 joins, the negative electrode of reverse connecting protection diode D16 connects the 5V operating voltage that power module provides, the plus earth of reverse connecting protection diode D17, No. 3 pins of another termination sensor 4 of the 21 current-limiting resistance R21; The end of No. 32 pins and the 18 current-limiting resistance R18 joins, the negative electrode of the anode of the end of the other end of the 18 current-limiting resistance R18 and the 19 current-limiting resistance R19, reverse connecting protection diode D14, reverse connecting protection diode D15 joins, the negative electrode of reverse connecting protection diode D14 connects the 5V operating voltage that power module provides, the plus earth of reverse connecting protection diode D15, No. 4 pins of another termination sensor 3 of the 19 current-limiting resistance R19; The end of No. 33 pins and the 16 current-limiting resistance R16 joins, the negative electrode of the anode of the end of the other end of the 16 current-limiting resistance R16 and the 17 current-limiting resistance R17, reverse connecting protection diode D12, reverse connecting protection diode D13 joins, the negative electrode of reverse connecting protection diode D12 connects the 5V operating voltage that power module provides, the plus earth of reverse connecting protection diode D13, No. 3 pins of another termination sensor 3 of the 17 current-limiting resistance R17; The end of No. 34 pins and the 14 current-limiting resistance R14 joins, the negative electrode of the anode of the end of the other end of the 14 current-limiting resistance R14 and the 15 current-limiting resistance R15, reverse connecting protection diode D10, reverse connecting protection diode D11 joins, the negative electrode of reverse connecting protection diode D10 connects the 5V operating voltage that power module provides, the plus earth of reverse connecting protection diode D11, No. 4 pins of another termination sensor 2 of the 17 current-limiting resistance R15; The end of No. 35 pins and the 12 current-limiting resistance R12 joins, the negative electrode of the anode of the end of the other end of the 12 current-limiting resistance R12 and the 13 current-limiting resistance R13, reverse connecting protection diode D8, reverse connecting protection diode D9 joins, the negative electrode of reverse connecting protection diode D8 connects the 5V operating voltage that power module provides, the plus earth of reverse connecting protection diode D9, No. 3 pins of another termination sensor 2 of the 13 current-limiting resistance R13; The end of No. 36 pins and the tenth current-limiting resistance R10 joins, the negative electrode of the anode of the end of the other end of the tenth current-limiting resistance R10 and the 11 current-limiting resistance R11, reverse connecting protection diode D6, reverse connecting protection diode D7 joins, the negative electrode of reverse connecting protection diode D6 connects the 5V operating voltage that power module provides, the plus earth of reverse connecting protection diode D7, No. 4 pins of another termination sensor 1 of the 11 current-limiting resistance R11; The end of No. 37 pins and the 8th current-limiting resistance R8 joins, the negative electrode of the anode of the end of the other end of the 8th current-limiting resistance R8 and the 9th current-limiting resistance R9, reverse connecting protection diode D4, reverse connecting protection diode D5 joins, the negative electrode of reverse connecting protection diode D4 connects the 5V operating voltage that power module provides, the plus earth of reverse connecting protection diode D5, No. 3 pins of another termination sensor 1 of the 9th current-limiting resistance R9; No. 40 pin meets the 4th divider resistance R4, the 4th another section of divider resistance R4 connects the base stage of PNP triode Q1, the grounded collector of PNP triode Q1, emitter connects the end of hummer LS1 and the 3rd divider resistance R3, the anode of another termination the second LED 2 of hummer LS1, the negative electrode of the second LED 2 connects the other end of the 3rd divider resistance R3.
As shown in Figure 4, detection module comprises 4 sensors, the 8th current-limiting resistance R8, the 9th current-limiting resistance R9, the tenth current-limiting resistance R10, the 11 current-limiting resistance R11, the 12 current-limiting resistance R12, the 13 current-limiting resistance R13, the 14 current-limiting resistance R14, the 15 current-limiting resistance R15, the 16 current-limiting resistance R16, the 17 current-limiting resistance R17, the 18 current-limiting resistance R18, the 19 current-limiting resistance R19, the 20 current-limiting resistance R20, the 21 current-limiting resistance R21, the 22 current-limiting resistance R22, the 23 current-limiting resistance R23, reverse connecting protection diode D4, reverse connecting protection diode D5, reverse connecting protection diode D6, reverse connecting protection diode D7, reverse connecting protection diode D8, reverse connecting protection diode D9, reverse connecting protection diode D10, reverse connecting protection diode D11, reverse connecting protection diode D12, reverse connecting protection diode D13, reverse connecting protection diode D14, reverse connecting protection diode D15, reverse connecting protection diode D16, reverse connecting protection diode D17, reverse connecting protection diode D18, reverse connecting protection diode D19.
Four sensors that the present invention adopts are HSLGS high temperature modification humiture transducers.HSLGS high temperature modification humiture transducer adopts the high temperature resistant humidity sensitive resistor element of imported with original packaging, and temperature section adopts import platinum resistance Pt100 as temperature-sensing element.For such more than 200 ° the humiture of airtight oven dry pyroprocess detect and to there is good Stability and veracity.No. 1 pin of sensor 1 connects the 12V voltage that power module provides; No. 2 pin ground connection; No. 3 pins connect the end of the 9th current-limiting resistance R9, the negative electrode of the anode of the end of the other end of the 9th current-limiting resistance R9 and the 8th current-limiting resistance R8, reverse connecting protection diode D4, reverse connecting protection diode D5 joins, the negative electrode of reverse connecting protection diode D4 connects the 5V operating voltage that power module provides, the plus earth of reverse connecting protection diode D5, No. 37 pins of the other end of the 8th current-limiting resistance R8 and control module Atmega16 chip join; No. 4 pins connect the end of the 11 current-limiting resistance R11, the negative electrode of the anode of the end of the other end of the 11 current-limiting resistance R11 and the tenth current-limiting resistance R10, reverse connecting protection diode D6, reverse connecting protection diode D7 joins, the negative electrode of reverse connecting protection diode D6 connects the 5V operating voltage that power module provides, the plus earth of reverse connecting protection diode D7, No. 36 pins of the other end of the tenth current-limiting resistance R10 and control module Atmega16 chip join; No. 1 pin of sensor 2 connects the 12V voltage that power module provides; No. 2 pin ground connection; No. 3 pins connect the end of the 13 current-limiting resistance R13, the negative electrode of the anode of the end of the other end of the 13 current-limiting resistance R13 and the 12 current-limiting resistance R12, reverse connecting protection diode D8, reverse connecting protection diode D9 joins, the negative electrode of reverse connecting protection diode D8 connects the 5V operating voltage that power module provides, the plus earth of reverse connecting protection diode D9, No. 35 pins of the other end of the 12 current-limiting resistance R12 and control module Atmega16 chip join; No. 4 pins connect the end of the 15 current-limiting resistance R15, the negative electrode of the anode of the end of the other end of the 15 current-limiting resistance R15 and the 14 current-limiting resistance R14, reverse connecting protection diode D10, reverse connecting protection diode D11 joins, the negative electrode of reverse connecting protection diode D10 connects the 5V operating voltage that power module provides, the plus earth of reverse connecting protection diode D11, No. 34 pins of the other end of the 14 current-limiting resistance R14 and control module Atmega16 chip join; No. 1 pin of sensor 3 connects the 12V voltage that power module provides; No. 2 pin ground connection; No. 3 pins connect the end of the 17 current-limiting resistance R17, the negative electrode of the anode of the end of the other end of the 17 current-limiting resistance R17 and the 16 current-limiting resistance R16, reverse connecting protection diode D12, reverse connecting protection diode D13 joins, the negative electrode of reverse connecting protection diode D12 connects the 5V operating voltage that power module provides, the plus earth of reverse connecting protection diode D13, No. 33 pins of the other end of the 16 current-limiting resistance R16 and control module Atmega16 chip join; No. 4 pins connect the end of the 19 current-limiting resistance R19, the negative electrode of the anode of the end of the other end of the 19 current-limiting resistance R19 and the 18 current-limiting resistance R18, reverse connecting protection diode D14, reverse connecting protection diode D15 joins, the negative electrode of reverse connecting protection diode D14 connects the 5V operating voltage that power module provides, the plus earth of reverse connecting protection diode D15, No. 32 pins of the other end of the 18 current-limiting resistance R18 and control module Atmega16 chip join; No. 1 pin of sensor 4 connects the 12V voltage that power module provides; No. 2 pin ground connection; No. 3 pins connect the end of the 21 current-limiting resistance R21, the negative electrode of the anode of the end of the other end of the 21 current-limiting resistance R21 and the 20 current-limiting resistance R20, reverse connecting protection diode D16, reverse connecting protection diode D17 joins, the negative electrode of reverse connecting protection diode D16 connects the 5V operating voltage that power module provides, the plus earth of reverse connecting protection diode D17, No. 31 pins of the other end of the 20 current-limiting resistance R20 and control module Atmega16 chip join; No. 4 pins connect the end of the 23 current-limiting resistance R23; the negative electrode of the anode of the end of the other end of the 23 current-limiting resistance R23 and the 22 current-limiting resistance R22, reverse connecting protection diode D18, reverse connecting protection diode D19 joins; the negative electrode of reverse connecting protection diode D18 connects the 5V operating voltage that power module provides; the plus earth of reverse connecting protection diode D19, No. 30 pins of the other end of the 22 current-limiting resistance R22 and control module Atmega16 chip join.
What as shown in Figure 5, wireless communication module adopted is the NRF2401 chip.
Based on this closed environment of drying course, add wireless communication module in circuit design, avoided these problems of restriction construction of line difficulty due to the site environment factor, can directly realize the function of communicating by letter with host computer.Be conducive to like this humiture of industrial process is reached to real-time inspection and control.No. 1 pin ground connection of NRF2401 chip; No. 2 pins connect power module provides the 3.3V operating voltage; No. 3 pins connect No. 42 pins of control module Atmega16 chip; No. 4 pins connect No. 44 pins of control module Atmega16 chip; No. 5 pins connect No. 3 pins of control module Atmega16 chip; No. 6 pins connect No. 1 pin of control module Atmega16 chip; No. 7 pins connect No. 2 pins of control module Atmega16 chip; No. 8 pins connect No. 41 pins of control module Atmega16 chip.
As shown in Figure 6, data memory module comprises the 6th current-limiting resistance R6, the 7th current-limiting resistance R7, the 15 filter capacitor C15 and pin-saving chip AT24CXX.
The AT24CXX chip is that a antijamming capability is strong, low in energy consumption, high reliability, read or write speed are fast, stability chip relatively preferably.No. 1 pin ground connection of AT24CXX chip; No. 2 pin ground connection; No. 3 pin ground connection; No. 4 pin ground connection; The end of No. 5 pins and No. 20 pins of control module Atmega16 chip and the 7th current-limiting resistance R7 joins, and another termination power module of the 7th current-limiting resistance R7 provides the 5V operating voltage; The end of No. 6 pins and No. 19 pins of control module Atmega16 chip and the 6th current-limiting resistance R6 joins, and another termination power module of the 6th current-limiting resistance R6 provides the 5V operating voltage; The end of No. 7 pins and the 15 filter capacitor C15 is connected on ground; The other end, the power module of No. 8 pins and the 15 filter capacitor C15 provide the 5V operating voltage to join.

Claims (1)

1. the humiture detection system of drying course, comprise power module, control module, detection module, wireless communication module and data memory module is characterized in that: power module is control module, detection module, wireless communication module and data memory module are powered; Detection module carries out the multi-channel sampling processing to its humiture information of drying course, and the simulating signal that temperature-humidity signal is transformed into 0-5 volt is sent into to control module; Control module is obtained the temperature-humidity signal of being exported by sensor and carries out respective handling by the AD sample detecting; The data memory module storage detects the data of gained; Wireless communication module is shown humiture communication to the host computer detected in drying unit;
Power module comprises the first voltage stabilizing chip LM2940, the second voltage stabilizing chip LM1117, the first reverse voltage-stabilizing protection diode D1, the second reverse voltage-stabilizing protection diode D2, reverse connecting protection diode D3, the first filter capacitor C1, the second filter capacitor C2, the 3rd filter capacitor C3, the 4th filter capacitor C4, the 5th filter capacitor C5, the 6th filter capacitor C6, the 7th filter capacitor C7, the 8th filter capacitor C8, the first filter inductance L1, the first LED 1, the first divider resistance R1, button S1;
The total power supply of 12V that the termination of button S1 is given, the anode of another termination reverse connecting protection diode D3 of button S1, the negative electrode of reverse connecting protection diode D3 respectively with the positive pole of the first filter capacitor C1, the end of the first filter inductance L1 joins, the other end of the first filter inductance L1 and the first reverse voltage-stabilizing protection diode D1 negative electrode, the Vin pin of the end of the second filter capacitor C2 and the first voltage stabilizing chip LM2940 joins, the negative pole of the first filter capacitor C1, the GND pin ground connection of the second filter capacitor C2 other end and the first voltage stabilizing chip LM2940, the end of the Vout pin of the first voltage stabilizing chip LM2940 and the 3rd filter capacitor C3, the positive pole of the 4th filter capacitor C4, the anode of the first LED 1 is connected on 5V, the negative pole of the 3rd filter capacitor C3 other end and the 4th filter capacitor C4, one end of the first divider resistance is connected on ground, the negative electrode of the other end of the first divider resistance and the first LED 1 joins, the positive pole of the 5th filter capacitor C5, the end of the 6th filter capacitor C6, the Vin pin of the negative electrode of the second reverse voltage-stabilizing protection diode D2 and the second voltage stabilizing chip LM1117 joins, the negative pole of the 5th filter capacitor C5, the GND pin of the other end of the 6th filter capacitor C6 and the second voltage stabilizing chip LM1117 is connected on ground, the anode of the Vout pin of the second voltage stabilizing chip LM1117 and the second reverse voltage-stabilizing protection diode D2, the end of the 7th filter capacitor C7, the positive pole of the 8th filter capacitor C8 is connected on 3.3V, the minus earth of the other end of the 7th filter capacitor C7 and the 8th filter capacitor C8,
Control module comprises control chip Atmega16, the 9th filter capacitor C9, the tenth filter capacitor C10, the 11 filter capacitor C11, the 12 filter capacitor C12, the 13 filter capacitor C13, the 14 filter capacitor C14, the second divider resistance R2, the 3rd divider resistance R3, the 4th divider resistance R4, PNP triode Q1, hummer LS1, and clock crystal oscillator Y1;
No. 1 pin of control chip Atmega16 connects No. 6 pins of radio communication mold chip block NRF2401; No. 2 pins connect No. 7 pins of radio communication mold chip block NRF2401; No. 3 pins connect No. 5 pins of radio communication mold chip block NRF2401; No. 4 pin connects the end of the second divider resistance R2 and the positive pole of the 14 filter capacitor C14, the 5V operating voltage that another termination power module of the second divider resistance R2 provides, the minus earth of the 14 filter capacitor C14; No. 5 pin connects the 5V operating voltage that power module provides; No. 6 pin ground connection; No. 7 pin joins with the end of the 12 filter capacitor C12 and the end of clock crystal oscillator Y1; No. 8 pin joins with the other end of clock crystal oscillator Y1 and the end of the 13 filter capacitor C13, and the other end of the 12 filter capacitor C12 and the other end of the 13 filter capacitor C13 are connected on ground; No. 17 pin joins with the end of the 11 filter capacitor C11 and the 5V operating voltage that power module provides; No. 18 pin ground connection; The other end of No. 29 pins and the 9th filter capacitor C9 joins; No. 40 pins connect the end of the 4th divider resistance R4, the base stage of the 4th another termination of divider resistance R4 PNP triode Q1, the grounded collector of PNP triode Q1, emitter connects the end of hummer LS1 and the end of the 3rd divider resistance R3, anode and the 5V power supply of another termination the second LED 2 of hummer LS1, the negative electrode of the second LED 2 connects the other end of the 3rd divider resistance R3;
Detection module comprises 4 sensors, the 8th current-limiting resistance R8, the 9th current-limiting resistance R9, the tenth current-limiting resistance R10, the 11 current-limiting resistance R11, the 12 current-limiting resistance R12, the 13 current-limiting resistance R13, the 14 current-limiting resistance R14, the 15 current-limiting resistance R15, the 16 current-limiting resistance R16, the 17 current-limiting resistance R17, the 18 current-limiting resistance R18, the 19 current-limiting resistance R19, the 20 current-limiting resistance R20, the 21 current-limiting resistance R21, the 22 current-limiting resistance R22, the 23 current-limiting resistance R23, reverse connecting protection diode D4, reverse connecting protection diode D5, reverse connecting protection diode D6, reverse connecting protection diode D7, reverse connecting protection diode D8, reverse connecting protection diode D9, reverse connecting protection diode D10, reverse connecting protection diode D11, reverse connecting protection diode D12, reverse connecting protection diode D13, reverse connecting protection diode D14, reverse connecting protection diode D15, reverse connecting protection diode D16, reverse connecting protection diode D17, reverse connecting protection diode D18, reverse connecting protection diode D19,
No. 1 pin of first sensor connects the 12V voltage that power module provides; No. 2 pin ground connection of first sensor; No. 3 pins of first sensor connect the end of the 9th current-limiting resistance R9, the negative electrode of the anode of the end of the other end of the 9th current-limiting resistance R9 and the 8th current-limiting resistance R8, reverse connecting protection diode D4, reverse connecting protection diode D5 joins, the negative electrode of reverse connecting protection diode D4 connects the 5V operating voltage that power module provides, the plus earth of reverse connecting protection diode D5, No. 37 pins of the other end of the 8th current-limiting resistance R8 and control chip Atmega16 join; No. 4 pins of first sensor connect the end of the 11 current-limiting resistance R11, the negative electrode of the anode of the end of the other end of the 11 current-limiting resistance R11 and the tenth current-limiting resistance R10, reverse connecting protection diode D6, reverse connecting protection diode D7 joins, the negative electrode of reverse connecting protection diode D6 connects the 5V operating voltage that power module provides, the plus earth of reverse connecting protection diode D7, No. 36 pins of the other end of the tenth current-limiting resistance R10 and control chip Atmega16 join;
No. 1 pin of the second sensor connects the 12V voltage that power module provides; No. 2 pin ground connection of the second sensor; No. 3 pins of the second sensor connect the end of the 13 current-limiting resistance R13, the negative electrode of the anode of the end of the other end of the 13 current-limiting resistance R13 and the 12 current-limiting resistance R12, reverse connecting protection diode D8, reverse connecting protection diode D9 joins, the negative electrode of reverse connecting protection diode D8 connects the 5V operating voltage that power module provides, the plus earth of reverse connecting protection diode D9, No. 35 pins of the other end of the 12 current-limiting resistance R12 and control chip Atmega16 join; No. 4 pins of the second sensor connect the end of the 15 current-limiting resistance R15, the negative electrode of the anode of the end of the other end of the 15 current-limiting resistance R15 and the 14 current-limiting resistance R14, reverse connecting protection diode D10, reverse connecting protection diode D11 joins, the negative electrode of reverse connecting protection diode D10 connects the 5V operating voltage that power module provides, the plus earth of reverse connecting protection diode D11, No. 34 pins of the other end of the 14 current-limiting resistance R14 and control chip Atmega16 join;
No. 1 pin of the 3rd sensor connects the 12V voltage that power module provides; No. 2 pin ground connection of the 3rd sensor; No. 3 pins of the 3rd sensor connect the end of the 17 current-limiting resistance R17, the negative electrode of the anode of the end of the other end of the 17 current-limiting resistance R17 and the 16 current-limiting resistance R16, reverse connecting protection diode D12, reverse connecting protection diode D13 joins, the negative electrode of reverse connecting protection diode D12 connects the 5V operating voltage that power module provides, the plus earth of reverse connecting protection diode D13, No. 33 pins of the other end of the 16 current-limiting resistance R16 and control chip Atmega16 join; No. 4 pins of the 3rd sensor connect the end of the 19 current-limiting resistance R19, the negative electrode of the anode of the end of the other end of the 19 current-limiting resistance R19 and the 18 current-limiting resistance R18, reverse connecting protection diode D14, reverse connecting protection diode D15 joins, the negative electrode of reverse connecting protection diode D14 connects the 5V operating voltage that power module provides, the plus earth of reverse connecting protection diode D15, No. 32 pins of the other end of the 18 current-limiting resistance R18 and control chip Atmega16 join;
No. 1 pin of four-sensor connects the 12V voltage that power module provides; No. 2 pin ground connection of four-sensor; No. 3 pins of four-sensor connect the end of the 21 current-limiting resistance R21, the negative electrode of the anode of the end of the other end of the 21 current-limiting resistance R21 and the 20 current-limiting resistance R20, reverse connecting protection diode D16, reverse connecting protection diode D17 joins, the negative electrode of reverse connecting protection diode D16 connects the 5V operating voltage that power module provides, the plus earth of reverse connecting protection diode D17, No. 31 pins of the other end of the 20 current-limiting resistance R20 and control chip Atmega16 join; No. 4 pins of four-sensor connect the end of the 23 current-limiting resistance R23, the negative electrode of the anode of the end of the other end of the 23 current-limiting resistance R23 and the 22 current-limiting resistance R22, reverse connecting protection diode D18, reverse connecting protection diode D19 joins, the negative electrode of reverse connecting protection diode D18 connects the 5V operating voltage that power module provides, the plus earth of reverse connecting protection diode D19, No. 30 pins of the other end of the 22 current-limiting resistance R22 and control chip Atmega16 join;
What wireless communication module adopted is the NRF2401 chip;
No. 1 pin ground connection of NRF2401 chip; No. 2 pins connect power module provides the 3.3V operating voltage; No. 3 pins connect No. 42 pins of control chip Atmega16; No. 4 pins connect No. 44 pins of control chip Atmega16; No. 5 pins connect No. 3 pins of control chip Atmega16; No. 6 pins connect No. 1 pin of control chip Atmega16; No. 7 pins connect No. 2 pins of control chip Atmega16; No. 8 pins connect No. 41 pins of control chip Atmega16;
Data memory module comprises the 6th current-limiting resistance R6, the 7th current-limiting resistance R7, the 15 filter capacitor C15 and pin-saving chip AT24CXX;
No. 1 pin ground connection of AT24CXX chip; No. 2 pin ground connection; No. 3 pin ground connection; No. 4 pin ground connection; The end of No. 5 pins and No. 20 pins of control chip Atmega16 and the 7th current-limiting resistance R7 joins, and another termination power module of the 7th current-limiting resistance R7 provides the 5V operating voltage; The end of No. 6 pins and No. 19 pins of control chip Atmega16 and the 6th current-limiting resistance R6 joins, and another termination power module of the 6th current-limiting resistance R6 provides the 5V operating voltage; The end of No. 7 pins and the 15 filter capacitor C15 is connected on ground; The other end, the power module of No. 8 pins and the 15 filter capacitor C15 provide the 5V operating voltage to join.
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CN105783440A (en) * 2016-03-23 2016-07-20 上海斐讯数据通信技术有限公司 Intelligent automatic drying system

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