CN206523175U - A kind of multifunctional intellectual instrument system - Google Patents
A kind of multifunctional intellectual instrument system Download PDFInfo
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- CN206523175U CN206523175U CN201621491769.9U CN201621491769U CN206523175U CN 206523175 U CN206523175 U CN 206523175U CN 201621491769 U CN201621491769 U CN 201621491769U CN 206523175 U CN206523175 U CN 206523175U
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Abstract
The utility model discloses a kind of multifunctional intellectual instrument system, including master controller, power module, water-carrying capacity detection circuit, temperature sensing circuit, key circuit, display, described, power module, water-carrying capacity detection circuit, temperature sensing circuit, key circuit, display are connected with master controller.A kind of multifunctional intellectual instrument system of the present utility model can detect that function is more various to temperature and water-carrying capacity simultaneously.
Description
Technical field
The utility model is related to detection technique, more particularly to a kind of multifunctional intellectual instrument system.
Background technology
Instrumentation is used for detecting various relevant parameters, according to different application of function in different places.Pass through detection
Instrument is capable of the environmental data of learning of quicklook, is industrially all popular with life.But inspection on the market at present
Survey instrument be often an instrument only have One function, such as water heater instrumentation, it needs to examine water-carrying capacity
Survey, while also water temperature is detected, and prior art can only detect data in a certain respect, can only in satisfaction needs
Realized by 2 sets of different equipment, add cost.
Utility model content
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of multifunctional intellectual instrument system
System, it can detect that convenient use is cost-effective to temperature and water-carrying capacity.
The purpose of this utility model is realized using following technical scheme：
A kind of multifunctional intellectual instrument system, including master controller, power module, water-carrying capacity detection circuit, temperature detection
Circuit, key circuit, display, described, power module, water-carrying capacity detection circuit, temperature sensing circuit, key circuit, display
Device is connected with master controller；Temperature sensing circuit includes resistance R1 to resistance R7, operational amplifier U1 and platinum resistance thermometer sensor, R8, institute
Resistance R1 one end and resistance R2 one end connection power module are stated, the resistance R1 other end is grounded by platinum resistance thermometer sensor, R8, electricity
The resistance R2 other end is grounded by resistance R3；Resistance R4 one end is connected between resistance R2 and resistance R3, resistance R5 one end
It is connected between resistance R1 and platinum resistance thermometer sensor, R8, resistance R4 other end concatenation operation amplifier U1 inverting input, resistance
R5 other end concatenation operation amplifier U1 in-phase input end, operational amplifier U1 inverting input is also connected by resistance R6
Its output end is connect, the resistance R7 one end connection resistance R5 other end, the resistance R7 other end is grounded, and operational amplifier U1's is defeated
Go out end and be also connected with master controller.
It is preferred that, the model LM358D of the operational amplifier U1.
It is preferred that, in addition to communicating circuit, the communicating circuit is the communication chip that model is MAX485CSA, the communication core
Piece is connected with master controller.
It is preferred that, water-carrying capacity detection circuit includes water flow sensor, voltage to frequency conversion chip U2, operational amplifier
U3, resistance R9 are to resistance R14, electric capacity C1 to electric capacity C3, and the power module is powered for water flow sensor, water flow sensor
By electric capacity C1 rate of connections voltage conversion chips U2 threshold value pin, resistance R9 one end connection power module, the other end connects
Connect voltage to frequency conversion chip U2 threshold value pin；Resistance R10 and resistance R11 are connected into series arm, and the one of the series arm
End ground connection, other end connection power module, power module is also connected with voltage to frequency conversion chip U2 power input pin, frequency
Voltage conversion chip U2 comparison input pin is connected between resistance R10 and resistance R11；Resistance R12 one end rate of connections
Voltage conversion chip U2 reference current pin, other end ground connection；Electric capacity C2 one end and resistance R13 one end are electric with frequency
Press conversion chip U2 timing pin connection, resistance R13 other end connection power module, electric capacity C2 other end ground connection；Frequently
One end of rate voltage conversion chip U2 electric current output pin, resistance R14 one end and electric capacity C3 is all connected with operational amplifier U3
In-phase input end, resistance the R14 other end, the electric capacity C3 other end, voltage to frequency conversion chip U2 rate-adaptive pacemaker pin
It is grounded；Operational amplifier U3 inverting input connects its output end, and operational amplifier U3 output end is also connected with main control
Device.
It is preferred that, in addition to 4-20mA current loop circuits, the input of the 4-20mA current loop circuits is connected to connection water
The output end of flow sensor.
The 4-20mA current loop circuits include follower, benchmark source chip U5 and the electricity being made up of operational amplifier U4
Resistance R15 and electric capacity C4, the operational amplifier U4 in-phase input end are connected to operational amplifier U3 output end, the computing
Amplifier U4 inverting input is connected with its output end, and the two ends of the resistance R15 are respectively connecting to operational amplifier U4's
In-phase input end and output end, the output end of the operational amplifier U4 are connected to benchmark source chip U5 input by electric capacity C4
End, the sampling end of the master controller is connected between electric capacity C4 and benchmark source chip U5.
The benchmark source chip U5 is TL431 chips.
Compared with prior art, the beneficial effects of the utility model are：
A kind of multifunctional intellectual instrument system of the present utility model can be while detect, function to temperature and water-carrying capacity
It is more various.
Brief description of the drawings
Fig. 1 is a kind of function structure chart of multifunctional intellectual instrument system of the present utility model；
Fig. 2 is the circuit structure diagram of temperature sensing circuit of the present utility model；
Fig. 3 is the circuit structure diagram that water-carrying capacity of the present utility model detects circuit；
Fig. 4 is the circuit structure diagram of 4-20mA current loop circuits of the present utility model.
Embodiment
Below, with reference to accompanying drawing and embodiment, the utility model is described further：
As shown in figure 1, the utility model provides a kind of multifunctional intellectual instrument system, it includes master controller, power supply mould
Block, water-carrying capacity detection circuit, temperature sensing circuit, key circuit, display, described, power module, water-carrying capacity detection circuit,
Temperature sensing circuit, key circuit, display are connected with master controller.Power module is powered to intelligent detecting instrument, is passed through
Temperature sensing circuit detection temperature signal, detects electric circuit inspection water flow signal, master controller is according to from temperature by water-carrying capacity
The temperature signal and water flow signal of degree detection circuit and water-carrying capacity detection circuit, which draw temperature and water-carrying capacity and sent, extremely to be shown
Device is shown that the display is OLED display screen.The utility model can be designed as three circuit-switched data communication ports, respectively 485
Communication port, flow value pulse delivery outlet and electric current loop communication port.Communicating circuit belonging to 485 communication ports uses model
MAX485CSA communication chip, the communication chip is connected with master controller, can be achieved to be communicated with host computer, sends current
Water-carrying capacity and temperature to host computer.The model of master controller can be selected as IAP15F2K61S2, chip crystalline substance with built in
Shake and reset circuit, be also configured with the AD converter of 8 passages, 2K SRAM memory blocks.
As shown in Fig. 2 temperature sensing circuit includes resistance R1 to resistance R7, operational amplifier U1 and platinum resistance thermometer sensor, R8, institute
Resistance R1 one end and resistance R2 one end connection power module are stated, the resistance R1 other end is grounded by platinum resistance thermometer sensor, R8, electricity
The resistance R2 other end is grounded by resistance R3；Resistance R4 one end is connected between resistance R2 and resistance R3, resistance R5 one end
It is connected between resistance R1 and platinum resistance thermometer sensor, R8, resistance R4 other end concatenation operation amplifier U1 inverting input, resistance
R5 other end concatenation operation amplifier U1 in-phase input end, operational amplifier U1 inverting input is also connected by resistance R6
Its output end is connect, the resistance R7 one end connection resistance R5 other end, the resistance R7 other end is grounded, and operational amplifier U1's is defeated
Go out end and be also connected with master controller.
Platinum resistance thermometer sensor, R8 is thermistor, and its resistance produces change according to temperature difference, and operational amplifier U1 is to platinum warm
The asynchronous voltage of resistance R8 resistances is exported to master controller after being amplified.Resistance R6 is used as feedback resistance.Operational amplifier
U1 model LM358D.
As shown in figure 3, water-carrying capacity detection circuit includes water flow sensor, voltage to frequency conversion chip U2, operation amplifier
Device U3, resistance R9 are to resistance R14, electric capacity C1 to electric capacity C3, and the power module is powered for water flow sensor, water-carrying capacity sensing
Device passes through electric capacity C1 rate of connections voltage conversion chips U2 threshold value pin, resistance R9 one end connection power module, the other end
Rate of connections voltage conversion chip U2 threshold value pin 3；Resistance R10 and resistance R11 are connected into series arm, the series arm
One end is grounded, and other end connection power module, power module is also connected with voltage to frequency conversion chip U2 power input pin 1,
Voltage to frequency conversion chip U2 comparison input pin is connected between resistance R10 and resistance R11；Resistance R12 one end connection
Voltage to frequency conversion chip U2 reference current pin 4, other end ground connection；Electric capacity C2 one end and resistance R13 one end with
Voltage to frequency conversion chip U2 timing pin 5 is connected, resistance R13 other end connection power module, the electric capacity C2 other end
Ground connection；One end of voltage to frequency conversion chip U2 electric current output pin 6, resistance R14 one end and electric capacity C3 is all connected with computing
Amplifier U3 in-phase input end, the resistance R14 other end, the electric capacity C3 other end, voltage to frequency conversion chip U2 frequency
Output pin 7 is grounded；Operational amplifier U3 inverting input connects its output end, and operational amplifier U3 output end also connects
Connect master controller.The voltage of power module output is 5V, and voltage to frequency conversion chip U2 grounding pin 8 is grounded.Voltage to frequency
Conversion chip U2 model LM331.Resistance R13 and electric capacity C2 composition RC timing circuits.Water flow sensor output is detected
Water-carrying capacity signal, and compared with the input voltage of pin 2, output pulse signal is after operational amplifier U3 amplifications to main
Controller obtains water flow numerical value.Calculated in the host controller according to the voltage and obtain current numerical quantity for prior art.
Current loop circuit of the present utility model is 4-20mA current loop circuits, and the input of the 4-20mA current loop circuits connects
It is connected to the output end of connection water flow sensor.Specifically, it refer to shown in Fig. 4,4-20mA current loop circuits are included by computing
Follower, benchmark source chip U5 and resistance R15 and electric capacity C4 that amplifier U4 is constituted, the operational amplifier U4's is same mutually defeated
Enter the output end that end is connected to operational amplifier U3, the inverting input of the operational amplifier U4 is connected with its output end, institute
The two ends for stating resistance R15 are respectively connecting to operational amplifier U4 in-phase input end and output end, the operational amplifier U4's
Output end is connected to benchmark source chip U5 input by electric capacity C4, the sampling end of the master controller be connected to electric capacity C4 and
Between benchmark source chip U5, benchmark source chip U5 output end (VOUT) is connected to be exported such as transmitter.Wherein, transport
Calculating amplifier U4 uses rail-to-rail four-way operational amplifier LM324, benchmark source chip U5 to be TL431 chips.
It will be apparent to those skilled in the art that technical scheme that can be as described above and design, make other various
It is corresponding to change and deformation, and all these change and deformation should all belong to the protection of the utility model claim
Within the scope of.
Claims (7)
1. a kind of multifunctional intellectual instrument system, it is characterised in that including master controller, power module, water-carrying capacity detection circuit,
Temperature sensing circuit, key circuit, display, the power module, water-carrying capacity detection circuit, temperature sensing circuit, button electricity
Road, display are connected with master controller；Temperature sensing circuit includes resistance R1 to resistance R7, operational amplifier U1 and platinum thermoelectricity
R8, one end of the resistance R1 and resistance R2 one end connection power module are hindered, the resistance R1 other end passes through platinum resistance thermometer sensor, R8
Ground connection, the resistance R2 other end is grounded by resistance R3；Resistance R4 one end is connected between resistance R2 and resistance R3, resistance R5
One end be connected between resistance R1 and platinum resistance thermometer sensor, R8, resistance R4 other end concatenation operation amplifier U1 anti-phase input
End, resistance R5 other end concatenation operation amplifier U1 in-phase input end, operational amplifier U1 inverting input also passes through
Resistance R6 connects its output end, the resistance R7 one end connection resistance R5 other end, resistance R7 other end ground connection, operation amplifier
Device U1 output end is also connected with master controller.
2. a kind of multifunctional intellectual instrument system as claimed in claim 1, it is characterised in that the type of the operational amplifier U1
Number be LM358D.
3. a kind of multifunctional intellectual instrument system as claimed in claim 1, it is characterised in that also including communicating circuit, this leads to
News circuit is the communication chip that model is MAX485CSA, and the communication chip is connected with master controller.
4. a kind of multifunctional intellectual instrument system as claimed in claim 1, it is characterised in that water-carrying capacity detection circuit includes water
Flow sensor, voltage to frequency conversion chip U2, operational amplifier U3, resistance R9 to resistance R14, electric capacity C1 to electric capacity C3, institute
State power module to power for water flow sensor, the threshold that water flow sensor passes through electric capacity C1 rate of connections voltage conversion chips U2
It is worth pin, resistance R9 one end connection power module, other end rate of connections voltage conversion chip U2 threshold value pin；Resistance
R10 and resistance R11 are connected into series arm, one end ground connection of the series arm, other end connection power module, and power module is also
Rate of connections voltage conversion chip U2 power input pin, voltage to frequency conversion chip U2 comparison input pin is connected to electricity
Between resistance R10 and resistance R11；Resistance R12 one end rate of connections voltage conversion chip U2 reference current pin, another termination
Ground；The timing pin of electric capacity C2 one end and resistance R13 one end with voltage to frequency conversion chip U2 is connected, resistance R12's
The other end connects power module, electric capacity C2 other end ground connection；Voltage to frequency conversion chip U2 electric current output pin, resistance
R14 one end and electric capacity C3 one end are all connected with operational amplifier U3 in-phase input end, resistance the R14 other end, electric capacity C3
The other end, voltage to frequency conversion chip U2 rate-adaptive pacemaker pin is grounded；Operational amplifier U3 inverting input connection
Its output end, operational amplifier U3 output end is also connected with master controller.
5. a kind of multifunctional intellectual instrument system as claimed in claim 4, it is characterised in that also including 4-20mA electric current loops electricity
Road, the input of the 4-20mA current loop circuits is connected to the output end of connection water flow sensor.
6. a kind of multifunctional intellectual instrument system as claimed in claim 5, it is characterised in that the 4-20mA current loop circuits
Including the follower being made up of operational amplifier U4, benchmark source chip U5 and resistance R15 and electric capacity C4, the operational amplifier
U4 in-phase input end is connected to operational amplifier U3 output end, and the inverting input of the operational amplifier U4 is exported with it
End is connected, and the two ends of the resistance R15 are respectively connecting to operational amplifier U4 in-phase input end and output end, and the computing is put
Big device U4 output end is connected to benchmark source chip U5 input by electric capacity C4, and the sampling end of the master controller is connected to
Between electric capacity C4 and benchmark source chip U5.
7. a kind of multifunctional intellectual instrument system as claimed in claim 6, it is characterised in that the benchmark source chip U5 is
TL431 chips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621491769.9U CN206523175U (en) | 2016-12-31 | 2016-12-31 | A kind of multifunctional intellectual instrument system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621491769.9U CN206523175U (en) | 2016-12-31 | 2016-12-31 | A kind of multifunctional intellectual instrument system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206523175U true CN206523175U (en) | 2017-09-26 |
Family
ID=59890869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621491769.9U Active CN206523175U (en) | 2016-12-31 | 2016-12-31 | A kind of multifunctional intellectual instrument system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206523175U (en) |
-
2016
- 2016-12-31 CN CN201621491769.9U patent/CN206523175U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 310059 room e5029, 5 / F, building 1 (South), No. 368, Liuhe Road, Binjiang District, Hangzhou, Zhejiang Province Patentee after: Hangzhou Langxun Technology Co.,Ltd. Address before: 310000 room e5029, 5 / F, building 1 (South), No. 368, Liuhe Road, Binjiang District, Hangzhou City, Zhejiang Province Patentee before: HANGZHOU LUNTEK TECHNOLOGY Co.,Ltd. |
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| CP03 | Change of name, title or address |