CN206804178U - A kind of intelligent wet and dry bulb moisture apparatus - Google Patents

A kind of intelligent wet and dry bulb moisture apparatus Download PDF

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Publication number
CN206804178U
CN206804178U CN201720426576.3U CN201720426576U CN206804178U CN 206804178 U CN206804178 U CN 206804178U CN 201720426576 U CN201720426576 U CN 201720426576U CN 206804178 U CN206804178 U CN 206804178U
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China
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pin
charactron
decoding module
resistance
light emitting
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CN201720426576.3U
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Chinese (zh)
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黄睿
高东威
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Hangzhou Vocational and Technical College
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Hangzhou Vocational and Technical College
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Abstract

It the utility model is related to a kind of intelligent wet and dry bulb moisture apparatus.The utility model includes display and button trimming circuit, governor circuit, warning circuit, reset circuit, clock circuit and filter circuit；It is main control chip to select STM8S105, selects the high thermistor of precision to be popped one's head in as monitoring.Detection circuit gathers data of the Temperature and Humidity module and handled again by corrected Calculation after AD conversion, real-time display and storage dry bulb, wet-bulb temperature and relative humidity data on follow-up circuit, graduation alarm can be realized by warning circuit.The utility model detection limit scope is wide, error is small, low cost and availability.And it is also equipped with the functions such as real time temperature and humidity data Dynamic Announce, dynamically recording and super hygroscopic water grade alarm.The project can be used for the monitoring of temperature and relative humidity the most basic in agricultural production, agricultural breeding and industrial production environment.The detecting step of relative air humidity is simplified, and the measurement data in more spaces can be obtained simultaneously.

Description

A kind of intelligent wet and dry bulb moisture apparatus
Technical field
The utility model belongs to environmental testing, while has been related to sensing detection technology and embedded system technology neck A kind of domain, and in particular to intelligent wet and dry bulb moisture apparatus.
Background technology
Temperature and humidity in environment be influence agricultural production, agricultural avocation cultivation and industrial production benefit it is important because Element.Suitable Hygrothermograph is needed to monitor the temperature and humidity of environment in life, according to the prompting of temperature and humidity tester Come humidity and temperature in adjusting ambient, or corresponding counter-measure is made to improve productivity effect according to prompting.In view of this side The demand in face, in the market have been born many temperature and humidity testers.Found by market survey, the high detector equipment knot of precision Structure is complicated, somewhat expensive.And price is lower than relatively low temperature and humidity tester measurement accuracy and power consumption is high.
The content of the invention
The purpose of this utility model is to provide a kind of intelligent wet and dry bulb moisture apparatus.
The utility model includes display and button trimming circuit, governor circuit, warning circuit, reset circuit, clock circuit And filter circuit.
Described governor circuit includes main control chip U4；Electric capacity C4 termination main control chip U4 VCAP pin；Electric capacity C3 A termination main control chip U4 VDD pin；The electric capacity C4 other end, the VSS pin of the electric capacity C3 other end and main control chip U4 connect It is grounded after connecing；Main control chip U4 VDDIO pin meet VCC；Main control chip U4 VDD pin are connected with VDDIO pin；Main control chip U4's VDDA pin connect VCC, the VSSA pin ground connection of main control chip；An electric capacity C11 termination VCC, other end ground connection；Electric capacity C15 one end Ground connection, another termination main control chip U4 16 pin；RTD R21 one end ground connection, RTD the R21 other end and resistance R19 One end connection be followed by main control chip U4 16 pin；Resistance R19 another termination VCC；RTD R22 one end ground connection, platinum electricity The resistance R22 other end is connected 15 pin for being followed by main control chip U4 with resistance R20 one end；Resistance R20 another termination VCC；Electricity Hold C16 one end ground connection, another termination main control chip U4 15 pin；Electric capacity C12 one end ground connection, another termination VCC；Electric capacity C7 One end ground connection, another termination VCC；P1 is keystroke interface module, and keystroke interface module P1 is eight pin interfaces, keystroke interface mould Block P1 1 pin, 2 pin, 3 pin, 4 pin, 5 pin connect main control chip U4 32 pin, 11 pin, 12 pin, 13 pin, 14 pin respectively；Keystroke interface Module P1 6 pin, 7 pin are grounded after connecting；Keystroke interface module P1 8 pin meet VCC；P2 and P3 is serial data transceiver interface, Using four pin interfaces；Serial data transceiver interface P2 1 pin connects VCC, serial data transceiver interface P2 4 pin ground connection, serial number Connect main control chip U4 31 pin, 30 pin respectively according to transceiver interface P2 2 pin, 3 pin；Serial data transceiver interface P3 1 pin connects VCC, serial data transceiver interface P3 4 pin ground connection, serial data transceiver interface P3 2 pin, 3 pin connect main control chip U4's respectively 1 pin, 26 pin.
Described display and button trimming circuit include driving chip U2,4 pieces of charactrons LED1, LED2, LED3, LED4 and 2 charactron decoding module U1, U3, driving chip U2 use ULN2803 chips, and charactron decoding module uses 74LS595 cores Piece；Driving chip U2 1 pin, 2 pin, 3 pin, 4 pin, 5 pin, 6 pin, 7 pin, 8 pin connect main control chip U4 24 pin, 23 pin, 22 respectively Pin, 21 pin, 20 pin, 19 pin, 18 pin, 17 pin；Driving chip U2 grounding leg ground connection, driving chip U2 10 pin meet VCC；It is digital Pipe LED3 12 pin are connected 18 pin for being followed by driving chip U2 with charactron LED1 12 pin；Charactron LED3 11 pin and number Pipe LED1 11 pin connection is followed by driving chip U2 17 pin；After charactron LED3 10 pin are connected with charactron LED1 10 pin Connect driving chip U2 16 pin；Charactron LED3 9 pin are connected 15 pin for being followed by driving chip U2 with charactron LED1 9 pin； Charactron LED4 10 pin are connected 14 pin for being followed by driving chip U2 with charactron LED2 10 pin；Charactron LED4 9 pin with Charactron LED2 9 pin connection is followed by driving chip U2 13 pin；Light emitting diode D1 negative pole, light emitting diode D2 it is negative Pole, light emitting diode D3 negative pole, light emitting diode D4 negative pole, light emitting diode D5 negative pole, light emitting diode D6 it is negative Pole, light emitting diode D7 negative pole, light emitting diode D8 negative pole, light emitting diode D9 negative pole, light emitting diode D10 it is negative Pole, light emitting diode D11 negative pole, light emitting diode D12 negative pole are connected with diode D14 negative pole and are followed by driving chip U2 12 pin；
Light emitting diode D1 positive pole, charactron LED1 1 pin are connect after being connected with charactron LED2 1 pin by resistance R1 Charactron decoding module U1 15 pin；Light emitting diode D2 positive pole, 2 pin of charactron LED1 2 pin and charactron LED2 connect Charactron decoding module U1 1 pin is connect after connecing by resistance R2；Light emitting diode D3 positive pole, charactron LED1 3 pin and number Charactron decoding module U1 2 pin are connect after code pipe LED2 3 pin connection by resistance R3；Light emitting diode D4 positive pole, number Pipe LED1 4 pin connect charactron decoding module U1 3 pin by resistance R4 after being connected with charactron LED2 4 pin；Light-emitting diodes Pipe D5 positive pole, charactron LED1 5 pin by resistance R5 meet charactron decoding module U1 after being connected with charactron LED2 5 pin 4 pin；Light emitting diode D6 positive pole, charactron LED1 6 pin by resistance R6 connect number after being connected with charactron LED2 6 pin Code pipe decoding module U1 5 pin；Charactron LED1 7 pin by resistance R7 connect charactron after being connected with charactron LED2 7 pin Decoding module U1 6 pin；Charactron LED1 8 pin connect charactron by resistance R8 after being connected with charactron LED2 8 pin and decoded Module U1 7 pin；
Light emitting diode D7 positive pole, charactron LED3 1 pin are connect after being connected with charactron LED4 1 pin by resistance R9 Charactron decoding module U3 15 pin；Light emitting diode D8 positive pole, 2 pin of charactron LED3 2 pin and charactron LED4 connect Charactron decoding module U3 1 pin is connect after connecing by resistance R10；Light emitting diode D9 positive pole, charactron LED3 3 pin and number Charactron decoding module U3 2 pin are connect after code pipe LED4 3 pin connection by resistance R11；Light emitting diode D10 positive pole, number Code pipe LED3 4 pin connect charactron decoding module U3 3 pin by resistance R12 after being connected with charactron LED4 4 pin；Luminous two Pole pipe D11 positive pole, charactron LED3 5 pin connect charactron by resistance R13 after being connected with charactron LED4 5 pin and decode mould Block U3 4 pin；Light emitting diode D12 positive pole, charactron LED3 6 pin pass through resistance after being connected with charactron LED4 6 pin R14 connects charactron decoding module U3 5 pin；Charactron LED3 7 pin be connected with charactron LED4 7 pin after by resistance R15 Connect charactron decoding module U3 6 pin；Charactron LED3 8 pin by resistance R16 connect number after being connected with charactron LED4 8 pin Code pipe decoding module U3 7 pin；
Microswitch S1 one end, microswitch S2 one end, microswitch S3 one end, microswitch S4 one end with Microswitch S5 one end is connected；Microswitch S1 another terminating diode D14 positive pole；The microswitch S2 other end Charactron LED4 9 pin are connect by diode D15；The microswitch S3 other end connects charactron LED4's by diode D16 10 pin；The microswitch S4 other end connects charactron LED3 9 pin by diode D17；The microswitch S5 other end passes through Diode D18 connects charactron LED3 10 pin；
Charactron decoding module U1 11 pin are connected with charactron decoding module U3 11 pin and are followed by the 28 of main control chip U4 Pin；Charactron decoding module U1 10 pin, charactron decoding module U3 10 pin, charactron decoding module U1 VCC pin, number Pipe decoding module U3 VCC pin meet VCC；After charactron decoding module U1 12 pin are connected with charactron decoding module U3 12 pin Connect main control chip U4 29 pin；Charactron decoding module U1 13 pin, charactron decoding module U3 13 pin, charactron decoding mould Block U1 grounding leg, charactron decoding module U3 grounding leg ground connection；Charactron decoding module U3 14 pin connect charactron decoding Module U1 9 pin；Charactron decoding module U1 14 pin connect main control chip U4 27 pin.
Described warning circuit includes buzzer LS1, triode Q1, and triode Q1 uses 9013 type triodes；Buzzer A LS1 termination VCC, buzzer LS1 another termination triode Q1 colelctor electrode；Triode Q1 grounded emitter, three poles Pipe Q1 base stage is connected by 25 pin of resistance R17 and main control chip.
Described reset circuit includes diode D13, and diode D13 positive pole passes through after being connected with resistance R18 one end Electric capacity C5 is grounded, and diode D13 negative pole is connected with the resistance R18 other end is followed by VCC.
Described clock circuit includes crystal oscillator X1, and crystal oscillator X1 one end is connected with electric capacity C1 one end is followed by main control chip U4 2 pin；The crystal oscillator X1 other end is connected 3 pin for being followed by main control chip U4 with electric capacity C2 one end；The electric capacity C1 other end, electric capacity C2 other end ground connection.
Described filter circuit includes polar capacitor C14, after polar capacitor C14 positive pole is connected with electric capacity C13 one end Meet VCC；Polar capacitor C14 negative pole is grounded after being connected with the electric capacity C13 other end.
Described main control chip U4 uses STM8S105 family chips.
The utility model detection limit scope is wide, error is small, low cost and availability.And it is also equipped with real time temperature and wet The functions such as degrees of data Dynamic Announce, dynamically recording and the alarm of super hygroscopic water grade.The project can be used for agricultural production, agricultural breeding And in industrial production environment the most basic temperature and relative humidity monitoring.Simplify the detection step of relative air humidity Suddenly, and the measurement data in more spaces can be obtained simultaneously.
Brief description of the drawings
Fig. 1 is module map of the present utility model；
Fig. 2 is the circuit diagram of governor circuit in Fig. 1；
Fig. 3 is the circuit diagram of display and button trimming circuit in Fig. 1；
Fig. 4 is the circuit diagram of warning circuit in Fig. 1；
Fig. 5 is the circuit diagram of reset circuit in Fig. 1；
Fig. 6 is the circuit diagram of clock circuit in Fig. 1；
Fig. 7 is the circuit diagram of filter circuit in Fig. 1.
Embodiment
Hereinafter with reference to accompanying drawing, preferred embodiment of the present utility model is described in detail.
As shown in figure 1, a kind of intelligent wet and dry bulb moisture apparatus, including display and button trimming circuit 1, governor circuit 2, alarm Circuit 3, reset circuit 4, clock circuit 5 and filter circuit 6.
As shown in Fig. 2 governor circuit 2 includes main control chip U4, using STM8S105 family chips；An electric capacity C4 termination Main control chip U4 VCAP pin；Electric capacity C3 termination main control chip U4 VDD pin；The electric capacity C4 other end, electric capacity C3 it is another One end is grounded after being connected with main control chip U4 VSS pin.Main control chip U4 VDDIO pin meet VCC；Main control chip U4 VDD pin It is connected with VDDIO pin.Main control chip U4 VDDA pin connect VCC, the VSSA pin ground connection of main control chip.An electric capacity C11 termination VCC, other end ground connection；Electric capacity C15 one end ground connection, another termination main control chip U4 16 pin；A RTD R21 termination Ground, the RTD R21 other end are connected 16 pin for being followed by main control chip U4 with resistance R19 one end；Resistance R19 another termination VCC.RTD R22 one end ground connection, the RTD R22 other end is connected with resistance R20 one end is followed by main control chip U4's 15 pin；Resistance R20 another termination VCC.Electric capacity C16 one end ground connection, another termination main control chip U4 15 pin；Electric capacity C12 One end ground connection, another termination VCC；Electric capacity C7 one end ground connection, another termination VCC.P1 is keystroke interface module, by bonded Mouth mold block P1 is eight pin interfaces, and keystroke interface module P1 1 pin, 2 pin, 3 pin, 4 pin, 5 pin connect the 32 of main control chip U4 respectively Pin, 11 pin, 12 pin, 13 pin, 14 pin；Keystroke interface module P1 6 pin, 7 pin are grounded after connecting；Keystroke interface module P1 8 pin Meet VCC.P2 and P3 is serial data transceiver interface, using four pin interfaces；Serial data transceiver interface P2 1 pin meets VCC, serially Data transceiver interface P2 4 pin ground connection, serial data transceiver interface P2 2 pin, 3 pin connect main control chip U4 31 pin, 30 respectively Pin.Serial data transceiver interface P3 1 pin connects VCC, serial data transceiver interface P3 4 pin ground connection, serial data transceiver interface P3 2 pin, 3 pin connect main control chip U4 1 pin, 26 pin respectively.
As shown in figure 3, display and button trimming circuit 1 include driving chip U2,4 pieces of charactron LED1, LED2, LED3, LED4 and 2 charactron decoding module U1, U3, driving chip U2 use ULN2803 chips, and charactron decoding module uses 74LS595 chips.Driving chip U2 1 pin, 2 pin, 3 pin, 4 pin, 5 pin, 6 pin, 7 pin, 8 pin connect the 24 of main control chip U4 respectively Pin, 23 pin, 22 pin, 21 pin, 20 pin, 19 pin, 18 pin, 17 pin；Driving chip U2 grounding leg ground connection, driving chip U2 10 pin Meet VCC；Charactron LED3 12 pin are connected 18 pin for being followed by driving chip U2 with charactron LED1 12 pin；Charactron LED3's 11 pin are connected 17 pin for being followed by driving chip U2 with charactron LED1 11 pin；Charactron LED3 10 pin are with charactron LED1's 10 pin connect 16 pin for being followed by driving chip U2；Charactron LED3 9 pin are connected with charactron LED1 9 pin and are followed by driving chip U2 15 pin；Charactron LED4 10 pin are connected 14 pin for being followed by driving chip U2 with charactron LED2 10 pin；Charactron LED4 9 pin are connected 13 pin for being followed by driving chip U2 with charactron LED2 9 pin.Light emitting diode D1 negative pole, luminous two Pole pipe D2 negative pole, light emitting diode D3 negative pole, light emitting diode D4 negative pole, light emitting diode D5 negative pole, luminous two Pole pipe D6 negative pole, light emitting diode D7 negative pole, light emitting diode D8 negative pole, light emitting diode D9 negative pole, luminous two After pole pipe D10 negative pole, light emitting diode D11 negative pole, light emitting diode D12 negative pole are connected with diode D14 negative pole Connect driving chip U2 12 pin.
Light emitting diode D1 positive pole, charactron LED1 1 pin are connect after being connected with charactron LED2 1 pin by resistance R1 Charactron decoding module U1 15 pin；Light emitting diode D2 positive pole, 2 pin of charactron LED1 2 pin and charactron LED2 connect Charactron decoding module U1 1 pin is connect after connecing by resistance R2；Light emitting diode D3 positive pole, charactron LED1 3 pin and number Charactron decoding module U1 2 pin are connect after code pipe LED2 3 pin connection by resistance R3；Light emitting diode D4 positive pole, number Pipe LED1 4 pin connect charactron decoding module U1 3 pin by resistance R4 after being connected with charactron LED2 4 pin；Light-emitting diodes Pipe D5 positive pole, charactron LED1 5 pin by resistance R5 connect charactron decoding module after being connected with charactron LED2 5 pin U1 4 pin；Light emitting diode D6 positive pole, charactron LED1 6 pin are connect after being connected with charactron LED2 6 pin by resistance R6 Charactron decoding module U1 5 pin；Charactron LED1 7 pin by resistance R7 connect number after being connected with charactron LED2 7 pin Pipe decoding module U1 6 pin；Charactron LED1 8 pin connect charactron by resistance R8 after being connected with charactron LED2 8 pin and translated Code module U1 7 pin.
Light emitting diode D7 positive pole, charactron LED3 1 pin are connect after being connected with charactron LED4 1 pin by resistance R9 Charactron decoding module U3 15 pin；Light emitting diode D8 positive pole, 2 pin of charactron LED3 2 pin and charactron LED4 connect Charactron decoding module U3 1 pin is connect after connecing by resistance R10；Light emitting diode D9 positive pole, charactron LED3 3 pin and number Charactron decoding module U3 2 pin are connect after code pipe LED4 3 pin connection by resistance R11；Light emitting diode D10 positive pole, number Code pipe LED3 4 pin connect charactron decoding module U3 3 pin by resistance R12 after being connected with charactron LED4 4 pin；Luminous two Pole pipe D11 positive pole, charactron LED3 5 pin connect charactron by resistance R13 after being connected with charactron LED4 5 pin and decode mould Block U3 4 pin；Light emitting diode D12 positive pole, charactron LED3 6 pin pass through resistance after being connected with charactron LED4 6 pin R14 connects charactron decoding module U3 5 pin；Charactron LED3 7 pin be connected with charactron LED4 7 pin after by resistance R15 Connect charactron decoding module U3 6 pin；Charactron LED3 8 pin by resistance R16 connect number after being connected with charactron LED4 8 pin Code pipe decoding module U3 7 pin.
Microswitch S1 one end, microswitch S2 one end, microswitch S3 one end, microswitch S4 one end with Microswitch S5 one end is connected.Microswitch S1 another terminating diode D14 positive pole；The microswitch S2 other end Charactron LED4 9 pin are connect by diode D15；The microswitch S3 other end connects charactron LED4's by diode D16 10 pin；The microswitch S4 other end connects charactron LED3 9 pin by diode D17；The microswitch S5 other end passes through Diode D18 connects charactron LED3 10 pin.
Charactron decoding module U1 11 pin are connected with charactron decoding module U3 11 pin and are followed by the 28 of main control chip U4 Pin；Charactron decoding module U1 10 pin, charactron decoding module U3 10 pin, charactron decoding module U1 VCC pin, number Pipe decoding module U3 VCC pin meet VCC；After charactron decoding module U1 12 pin are connected with charactron decoding module U3 12 pin Connect main control chip U4 29 pin；Charactron decoding module U1 13 pin, charactron decoding module U3 13 pin, charactron decoding mould Block U1 grounding leg, charactron decoding module U3 grounding leg ground connection；Charactron decoding module U3 14 pin connect charactron decoding Module U1 9 pin；Charactron decoding module U1 14 pin connect main control chip U4 27 pin.
As shown in figure 4, warning circuit 3 includes buzzer LS1, triode Q1, triode Q1 uses 9013 type triodes.Honeybee A ring device LS1 termination VCC, buzzer LS1 another termination triode Q1 colelctor electrode；Triode Q1 grounded emitter, Triode Q1 base stage is connected by 25 pin of resistance R17 and main control chip.
As shown in figure 5, reset circuit 4 includes diode D13, after diode D13 positive pole is connected with resistance R18 one end It is grounded by electric capacity C5, diode D13 negative pole is connected with the resistance R18 other end is followed by VCC.
As shown in fig. 6, clock circuit 5 includes crystal oscillator X1, crystal oscillator X1 one end is connected with electric capacity C1 one end is followed by master control Chip U4 2 pin；The crystal oscillator X1 other end is connected 3 pin for being followed by main control chip U4 with electric capacity C2 one end；Electric capacity C1's is another End, electric capacity C2 other end ground connection.
As shown in fig. 7, filter circuit 6 includes polar capacitor C14, polar capacitor C14 positive pole connects with electric capacity C13 one end Connect and be followed by VCC；Polar capacitor C14 negative pole is grounded after being connected with the electric capacity C13 other end.
The course of work：RTD R21, R22 gather sensing probe in circuit, and single-chip microcomputer 15 is connected to by point DQ1 and DQ2, 16 pin, the temperature data of collection are sent into single-chip microcomputer.R21, R22 detect the temperature of dry bulb and wet bulb respectively, pass through the temperature of collection Data calculate corresponding humidity through single-chip microcomputer.R19 is R21 divider resistance.Calculate R21 temperature-sensitives by surveying DQ1 voltages The change in resistance of resistance, so as to draw the temperature value of the temperature value, i.e. dry bulb of thermistor R21 measurements.Similarly R20 is R22's Divider resistance, the change in resistance of R21 thermistors is calculated by surveying DQ1 voltages, so as to draw the temperature of thermistor R22 measurements The temperature value of angle value, i.e. wet bulb.After knowing R21 and R22 temperature respectively, just the software of energy single-chip microcomputer is known that currently by algorithm Humidity.When humidity exceedes specified setting value, when the PD0 of single-chip microcomputer is JDQ pin output high level, buzzer sounding, electricity Appearance C7 is its power filtering capacitor.When humidity exceedes setting value, single-chip microcomputer STM8S105 exports high level by JDQ pin, this When triode 9013 turn on, be loudspeaker LS1 sounding, realize warning function.The data of single-chip microcomputer collection can also be through PD2 (27 Number) pin SER feeding 74LS595, the numeral method of feeding 4 after compiling.Light emitting diode is used for the display of working condition. Key circuit is configured and controlled to instrument for user.

Claims (6)

1. a kind of intelligent wet and dry bulb moisture apparatus, including display and button trimming circuit, governor circuit, warning circuit, reset circuit, Clock circuit and filter circuit；It is characterized in that：Described governor circuit includes main control chip U4；An electric capacity C4 termination master control Chip U4 VCAP pin；Electric capacity C3 termination main control chip U4 VDD pin；The electric capacity C4 other end, the electric capacity C3 other end It is grounded after being connected with main control chip U4 VSS pin；Main control chip U4 VDDIO pin meet VCC；Main control chip U4 VDD pin with VDDIO pin connect；Main control chip U4 VDDA pin connect VCC, the VSSA pin ground connection of main control chip；An electric capacity C11 termination VCC, The other end is grounded；Electric capacity C15 one end ground connection, another termination main control chip U4 16 pin；RTD R21 one end ground connection, platinum The resistance R21 other end is connected 16 pin for being followed by main control chip U4 with resistance R19 one end；Resistance R19 another termination VCC； RTD R22 one end ground connection, the RTD R22 other end are connected 15 pin for being followed by main control chip U4 with resistance R20 one end； Resistance R20 another termination VCC；Electric capacity C16 one end ground connection, another termination main control chip U4 15 pin；Electric capacity C12 one end Ground connection, another termination VCC；Electric capacity C7 one end ground connection, another termination VCC；P1 is keystroke interface module, keystroke interface module P1 For eight pin interfaces, keystroke interface module P1 1 pin, 2 pin, 3 pin, 4 pin, 5 pin connect respectively main control chip U4 32 pin, 11 pin, 12 pin, 13 pin, 14 pin；Keystroke interface module P1 6 pin, 7 pin are grounded after connecting；Keystroke interface module P1 8 pin meet VCC；P2 It is serial data transceiver interface with P3, using four pin interfaces；Serial data transceiver interface P2 1 pin connects VCC, serial data transmitting-receiving Interface P2 4 pin ground connection, serial data transceiver interface P2 2 pin, 3 pin connect main control chip U4 31 pin, 30 pin respectively；Serial number VCC, serial data transceiver interface P3 4 pin ground connection, serial data transceiver interface P3 2 pin, 3 are connect according to transceiver interface P3 1 pin Pin connects main control chip U4 1 pin, 26 pin respectively；
Described display and button trimming circuit include driving chip U2,4 pieces of charactrons LED1, LED2, LED3, LED4 and 2 Charactron decoding module U1, U3, driving chip U2 use ULN2803 chips, and charactron decoding module uses 74LS595 chips； Driving chip U2 1 pin, 2 pin, 3 pin, 4 pin, 5 pin, 6 pin, 7 pin, 8 pin connect respectively main control chip U4 24 pin, 23 pin, 22 pin, 21 pin, 20 pin, 19 pin, 18 pin, 17 pin；Driving chip U2 grounding leg ground connection, driving chip U2 10 pin meet VCC；Charactron LED3 12 pin are connected 18 pin for being followed by driving chip U2 with charactron LED1 12 pin；Charactron LED3 11 pin and charactron LED1 11 pin connection is followed by driving chip U2 17 pin；Charactron LED3 10 pin are connected with charactron LED1 10 pin and are followed by Driving chip U2 16 pin；Charactron LED3 9 pin are connected 15 pin for being followed by driving chip U2 with charactron LED1 9 pin；Number Code pipe LED4 10 pin are connected 14 pin for being followed by driving chip U2 with charactron LED2 10 pin；Charactron LED4 9 pin and number Code pipe LED2 9 pin connection is followed by driving chip U2 13 pin；Light emitting diode D1 negative pole, light emitting diode D2 negative pole, Light emitting diode D3 negative pole, light emitting diode D4 negative pole, light emitting diode D5 negative pole, light emitting diode D6 negative pole, Light emitting diode D7 negative pole, light emitting diode D8 negative pole, light emitting diode D9 negative pole, light emitting diode D10 negative pole, Light emitting diode D11 negative pole, light emitting diode D12 negative pole are connected with diode D14 negative pole and are followed by driving chip U2's 12 pin；
Light emitting diode D1 positive pole, charactron LED1 1 pin by resistance R1 connect number after being connected with charactron LED2 1 pin Pipe decoding module U1 15 pin；After light emitting diode D2 positive pole, charactron LED1 2 pin are connected with charactron LED2 2 pin Charactron decoding module U1 1 pin is connect by resistance R2；Light emitting diode D3 positive pole, charactron LED1 3 pin and charactron Charactron decoding module U1 2 pin are connect after LED2 3 pin connection by resistance R3；Light emitting diode D4 positive pole, charactron LED1 4 pin connect charactron decoding module U1 3 pin by resistance R4 after being connected with charactron LED2 4 pin；Light emitting diode D5 positive pole, charactron LED1 5 pin by resistance R5 connect charactron decoding module U1's after being connected with charactron LED2 5 pin 4 pin；Light emitting diode D6 positive pole, charactron LED1 6 pin by resistance R6 connect number after being connected with charactron LED2 6 pin Pipe decoding module U1 5 pin；Charactron LED1 7 pin connect charactron by resistance R7 after being connected with charactron LED2 7 pin and translated Code module U1 6 pin；Charactron LED1 8 pin connect charactron by resistance R8 after being connected with charactron LED2 8 pin and decode mould Block U1 7 pin；
Light emitting diode D7 positive pole, charactron LED3 1 pin by resistance R9 connect number after being connected with charactron LED4 1 pin Pipe decoding module U3 15 pin；After light emitting diode D8 positive pole, charactron LED3 2 pin are connected with charactron LED4 2 pin Charactron decoding module U3 1 pin is connect by resistance R10；Light emitting diode D9 positive pole, charactron LED3 3 pin and charactron Charactron decoding module U3 2 pin are connect after LED4 3 pin connection by resistance R11；Light emitting diode D10 positive pole, charactron LED3 4 pin connect charactron decoding module U3 3 pin by resistance R12 after being connected with charactron LED4 4 pin；Light emitting diode D11 positive pole, charactron LED3 5 pin by resistance R13 meet charactron decoding module U3 after being connected with charactron LED4 5 pin 4 pin；Light emitting diode D12 positive pole, charactron LED3 6 pin are connect after being connected with charactron LED4 6 pin by resistance R14 Charactron decoding module U3 5 pin；Charactron LED3 7 pin by resistance R15 connect number after being connected with charactron LED4 7 pin Pipe decoding module U3 6 pin；Charactron LED3 8 pin connect charactron by resistance R16 after being connected with charactron LED4 8 pin and translated Code module U3 7 pin；
Microswitch S1 one end, microswitch S2 one end, microswitch S3 one end, microswitch S4 one end with it is micro- Dynamic switch S5 one end is connected；Microswitch S1 another terminating diode D14 positive pole；The microswitch S2 other end leads to Cross 9 pin that diode D15 meets charactron LED4；The microswitch S3 other end connects the 10 of charactron LED4 by diode D16 Pin；The microswitch S4 other end connects charactron LED3 9 pin by diode D17；The microswitch S5 other end passes through two Pole pipe D18 connects charactron LED3 10 pin；
Charactron decoding module U1 11 pin are connected 28 pin for being followed by main control chip U4 with charactron decoding module U3 11 pin；Number Code pipe decoding module U1 10 pin, charactron decoding module U3 10 pin, charactron decoding module U1 VCC pin, charactron is translated Code module U3 VCC pin meet VCC；Charactron decoding module U1 12 pin are connected with charactron decoding module U3 12 pin and are followed by leading Control chip U4 29 pin；Charactron decoding module U1 13 pin, charactron decoding module U3 13 pin, charactron decoding module U1 Grounding leg, charactron decoding module U3 grounding leg ground connection；Charactron decoding module U3 14 pin connect charactron decoding module U1 9 pin；Charactron decoding module U1 14 pin connect main control chip U4 27 pin.
A kind of 2. intelligent wet and dry bulb moisture apparatus as claimed in claim 1, it is characterised in that：Described warning circuit includes buzzing Device LS1, triode Q1, triode Q1 use 9013 type triodes；A buzzer LS1 termination VCC, buzzer LS1's is another Terminate triode Q1 colelctor electrode；Triode Q1 grounded emitter, triode Q1 base stage pass through resistance R17 and main control chip 25 pin connection.
A kind of 3. intelligent wet and dry bulb moisture apparatus as claimed in claim 1, it is characterised in that：Described reset circuit includes two poles Pipe D13, diode D13 positive pole are grounded after being connected with resistance R18 one end by electric capacity C5, diode D13 negative pole and electricity Resistance R18 other end connection is followed by VCC.
A kind of 4. intelligent wet and dry bulb moisture apparatus as claimed in claim 1, it is characterised in that：Described clock circuit includes crystal oscillator X1, crystal oscillator X1 one end are connected 2 pin for being followed by main control chip U4 with electric capacity C1 one end；The crystal oscillator X1 other end is with electric capacity C2's One end connects 3 pin for being followed by main control chip U4；The electric capacity C1 other end, electric capacity C2 other end ground connection.
A kind of 5. intelligent wet and dry bulb moisture apparatus as claimed in claim 1, it is characterised in that：Described filter circuit includes polarity Electric capacity C14, polar capacitor C14 positive pole are connected with electric capacity C13 one end is followed by VCC；Polar capacitor C14 negative pole and electric capacity It is grounded after C13 other end connection.
A kind of 6. intelligent wet and dry bulb moisture apparatus as claimed in claim 1, it is characterised in that：Described main control chip U4 is used STM8S105 family chips.
CN201720426576.3U 2017-04-21 2017-04-21 A kind of intelligent wet and dry bulb moisture apparatus Expired - Fee Related CN206804178U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720426576.3U CN206804178U (en) 2017-04-21 2017-04-21 A kind of intelligent wet and dry bulb moisture apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720426576.3U CN206804178U (en) 2017-04-21 2017-04-21 A kind of intelligent wet and dry bulb moisture apparatus

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CN206804178U true CN206804178U (en) 2017-12-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720426576.3U Expired - Fee Related CN206804178U (en) 2017-04-21 2017-04-21 A kind of intelligent wet and dry bulb moisture apparatus

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Country Link
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