CN109360403A - A kind of Novel limousine water level sensor communicating circuit based on solid conductor - Google Patents
A kind of Novel limousine water level sensor communicating circuit based on solid conductor Download PDFInfo
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- CN109360403A CN109360403A CN201811286199.3A CN201811286199A CN109360403A CN 109360403 A CN109360403 A CN 109360403A CN 201811286199 A CN201811286199 A CN 201811286199A CN 109360403 A CN109360403 A CN 109360403A
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- level sensor
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 239000004020 conductor Substances 0.000 title claims abstract description 17
- 239000007787 solid Substances 0.000 title claims abstract description 16
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 31
- 239000003990 capacitor Substances 0.000 claims description 8
- 239000004065 semiconductor Substances 0.000 claims description 8
- 102100039435 C-X-C motif chemokine 17 Human genes 0.000 claims description 3
- 101000889048 Homo sapiens C-X-C motif chemokine 17 Proteins 0.000 claims description 3
- 238000004891 communication Methods 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 4
- 239000012141 concentrate Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
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- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The present invention relates to a kind of Novel limousine water level sensor communicating circuit based on solid conductor, it includes upstream functional blocks, water level sensor and car body iron-clad, car body iron-clad is realized the building site of water level sensor and upstream functional blocks by the present invention, and it is multiplexed using timing, by between upstream functional blocks and water level sensor power supply and communication data concentrate on solid conductor completing, it will be serial by multi-thread parallel or 4 lines between water level sensor and upstream functional blocks, it is simplified to single line, realize succinct harness communication, reduce wiring cost when caravan installation or maintenance.
Description
Technical field
The present invention relates to the communications between caravan water level sensor, and in particular to a kind of Novel limousine water based on solid conductor
Level sensor communicating circuit.
Background technique
Currently, the tradition connection of cistern water level sensor and upstream functional blocks is led using more on caravan application
Line connection: it is several to be defined as public pole one, each gear water level line, harness lead sum 8--5 root；Or be defined as power supply,
The serial port of line, Data, CLK, harness lead sum 4.Since water level sensor installation site is in outside vehicle (peace
Mounted in roof support or be suspended on chassis) and caravan switchboard room distance farther out, connection wiring harness need to be in vehicle body sheet metal component
It shuttles between wooden skeleton.From installation on fixed, Breakdown Maintenance and cost, it is desirable that harness must succinct as far as possible, number of lead wires
The fewer amount the better.
For best application demand of agreeing with, optimize harness to greatest extent, thus this case generates.
Summary of the invention
The purpose of the present invention is to provide a kind of Novel limousine water level sensor communicating circuit based on solid conductor, subtracts
The number of conductors between cistern water level sensor and upstream functional blocks is lacked, to reduce the cost of installation and maintenance of caravan.
To achieve the above object, the technical solution adopted by the present invention is that:
A kind of Novel limousine water level sensor communicating circuit based on solid conductor comprising upstream functional blocks, level sensor
Device and car body iron-clad are connected between the upstream functional blocks and water level sensor by solid conductor；The car body iron-clad is
The earth polar of common ground connection upstream functional blocks and water level sensor；
The upstream functional blocks include the first MCU, metal-oxide-semiconductor Q1, triode Q2, resistance R1, resistance R2 and resistance R3, wherein
The drain electrode of metal-oxide-semiconductor Q1 connects power supply VCC1, source bond wires, and connects water level sensor via conducting wire, and grid then connects three
The collector of pole pipe Q2, the base stage of triode Q2 connect the IO-PowerCom interface of the first MCU, and emitter is then grounded；Resistance R1
One end connecting wire, the other end connect the IO-Data1 interface of the first MCU；One end of resistance R2 connects the IO- of the first MCU
Data2 interface, other end connecting wire, meanwhile, which is also grounded via resistance R3；
The water level sensor includes the 2nd MCU, triode Q3, polar capacitor E1 and diode D1, wherein the base of triode Q3
Pole connects the IO-Data3 interface of the 2nd MCU, emitter ground connection, collector then connecting wire, and connects upstream function via conducting wire
It can module；The cathode of polar capacitor E1 is grounded, and on the one hand connection power supply VCC2, another aspect connect the yin of diode D1 to anode
Pole, and the anode connecting wire of diode D1.
The model MC9S08Dz60 of first MCU.
The model MKE04Z8 of 2nd MCU.
After adopting the above scheme, car body iron-clad is realized the building site of water level sensor and upstream functional blocks by the present invention, and
Be multiplexed using timing, by between upstream functional blocks and water level sensor power supply and communication data concentrate on solid conductor
Upper completion.When upstream functional blocks are powered by conducting wire to water level sensor, water level sensor carries out cistern water level
Operation, and be stored in the 2nd MCU；After power supply, then upstream functional module sends out and pre-defines water level sensor
DATA waveform.The present invention will be serial by multi-thread parallel or 4 lines between water level sensor and upstream functional blocks, is simplified to list
Line realizes succinct harness communication, reduces wiring cost when caravan installation or maintenance.
Detailed description of the invention
Fig. 1 is circuit diagram of the invention；
Fig. 2 is temporal model figure of the invention.
Specific embodiment
As shown in Figure 1, present invention discloses a kind of Novel limousine water level sensor communicating circuit based on solid conductor,
Including upstream functional blocks 1, water level sensor 2 and car body iron-clad 3, wherein car body iron-clad 3 connects upstream function as common ground
The earth polar of energy module 1 and water level sensor 2, and connected between upstream functional blocks 1 and water level sensor 2 by solid conductor 4.
Upstream functional blocks 1 include the first MCU11, metal-oxide-semiconductor Q1, triode Q2, resistance R1, resistance R2 and resistance R3,
In, the drain electrode of metal-oxide-semiconductor Q1 connects power supply VCC1, source bond wires 4, and connects water level sensor 2 via conducting wire 4, and grid is then
The collector of connecting triode Q2, the base stage of triode Q2 connect the IO-PowerCom interface of the first MCU11, and emitter then connects
Ground.The one end resistance R1 connecting wire, the other end connect the IO-Data1 interface of the first MCU；One end of resistance R2 connects the first MCU
IO-Data2 interface, other end connecting wire, meanwhile, the end also via resistance R3 be grounded.In upstream functional blocks 1, the
One MCU11, metal-oxide-semiconductor Q1, the timing of the stable power-supplying time of triode Q2 pilot and interval of powering；Resistance R1 is then conducting wire
Stable pull-up level is provided；Resistance R2, resistance R3 are then used to monitor the level change after power supply on conducting wire.
Water level sensor 2 includes the 2nd MCU21, triode Q3, polar capacitor E1 and diode D1, wherein triode Q3
Base stage connect the IO-Data3 interface of the 2nd MCU, emitter ground connection, collector then connecting wire, and via in the connection of conducting wire 4
Swim functional module 1.The cathode of polar capacitor is grounded, and on the one hand connection power supply VCC2, another aspect connect diode D1's to anode
Cathode, and the anode connecting wire of diode D1.
Referring to Fig. 2 and as shown in connection with fig. 1, it is multiplexed by timing, the confession between upstream functional blocks 1 and water level sensor 2
Power supply and communication data can concentrate on solid conductor 4 completing.When upstream functional blocks 1 pass through conducting wire 4 to level sensor
When device 2 is powered, the IO-PowerCom interface of the first MCU11 of upstream functional blocks 1 exports low level, and triode Q2 is cut
Only, power supply VCC through metal-oxide-semiconductor, conducting wire 4 to water level sensor 2 power (timing 1), at this point, the 2nd MCU21 of water level sensor 2 and
Peripheral circuit (peripheral circuit is the prior art, herein without repeating) carries out the operation of cistern water level, and is stored in second
In MCU21.
When IO-PowerCom interface is set to high level by the first MCU11 of upstream functional blocks 1, triode Q2 is connected, on
The trip power supply of functional module 1 terminates.After power supply, the polar capacitor E1 of water level sensor 2 continues as the 2nd MCU21 power supply, branch
Level translation of the triode Q3 completion to conducting wire is held, the 2nd MCU21 sends out upstream functional blocks 1 by IO-Data3 interface
The DATA waveform (timing 2) pre-defined.Polar capacitor E1 maintains electric discharge, and the 2nd MCU21 is lower than minimum work because of supply voltage
Make lower voltage limit, natural power down is shut down (timing 3), until cycle power timing starts next time.
The above is only the embodiment of the present invention, is not intended to limit the scope of the present invention, therefore all
Any subtle modifications, equivalent variations and modifications to the above embodiments according to the technical essence of the invention still fall within this
In the range of inventive technique scheme.
Claims (3)
1. a kind of Novel limousine water level sensor communicating circuit based on solid conductor, it is characterised in that: including upstream function mould
Block, water level sensor and car body iron-clad are connected between the upstream functional blocks and water level sensor by solid conductor；It is described
Car body iron-clad is the earth polar that common ground connects upstream functional blocks and water level sensor；
The upstream functional blocks include the first MCU, metal-oxide-semiconductor Q1, triode Q2, resistance R1, resistance R2 and resistance R3, wherein
The drain electrode of metal-oxide-semiconductor Q1 connects power supply VCC1, source bond wires, and connects water level sensor via conducting wire, and grid then connects three
The collector of pole pipe Q2, the base stage of triode Q2 connect the IO-PowerCom interface of the first MCU, and emitter is then grounded；Resistance R1
One end connecting wire, the other end connect the IO-Data1 interface of the first MCU；One end of resistance R2 connects the IO- of the first MCU
Data2 interface, other end connecting wire, meanwhile, which is also grounded via resistance R3；
The water level sensor includes the 2nd MCU, triode Q3, polar capacitor E1 and diode D1, wherein the base of triode Q3
Pole connects the IO-Data3 interface of the 2nd MCU, emitter ground connection, collector then connecting wire, and connects upstream function via conducting wire
It can module；The cathode of polar capacitor E1 is grounded, and on the one hand connection power supply VCC2, another aspect connect the yin of diode D1 to anode
Pole, and the anode connecting wire of diode D1.
2. a kind of Novel limousine water level sensor communicating circuit based on solid conductor according to claim 1, feature
It is: the model MC9S08Dz60 of the first MCU.
3. a kind of Novel limousine water level sensor communicating circuit based on solid conductor according to claim 1, feature
It is: the model MKE04Z8 of the 2nd MCU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811286199.3A CN109360403B (en) | 2018-10-31 | 2018-10-31 | Caravan water level sensor communication circuit based on single wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811286199.3A CN109360403B (en) | 2018-10-31 | 2018-10-31 | Caravan water level sensor communication circuit based on single wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109360403A true CN109360403A (en) | 2019-02-19 |
| CN109360403B CN109360403B (en) | 2024-02-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811286199.3A Active CN109360403B (en) | 2018-10-31 | 2018-10-31 | Caravan water level sensor communication circuit based on single wire |
Country Status (1)
| Country | Link |
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| CN (1) | CN109360403B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002330231A (en) * | 2001-04-27 | 2002-11-15 | Kouga Denshi Kk | Data transmitter and automatic meter-reading system using the same |
| CN102044139A (en) * | 2009-10-21 | 2011-05-04 | 深圳市合信达控制系统有限公司 | Two-wire non-polar connection power supply and communication circuit |
| CN201854277U (en) * | 2010-10-19 | 2011-06-01 | 曼瑞德自控系统（乐清）有限公司 | Single-wire communication circuit |
| CN106356828A (en) * | 2016-08-24 | 2017-01-25 | 珠海格力电器股份有限公司 | Home bus communication system and processing method for home bus communication system |
| CN107168901A (en) * | 2016-03-08 | 2017-09-15 | 德昌电机(深圳)有限公司 | Mongline two-way communication circuit |
| CN207816404U (en) * | 2018-01-26 | 2018-09-04 | 厦门拓宝科技有限公司 | A kind of caravan device for detecting water level of water tank of anti-grounding interference |
| CN207926616U (en) * | 2018-02-01 | 2018-09-28 | 四川华鹏电源有限公司 | A kind of meter bus communication circuit device |
| CN209044864U (en) * | 2018-10-31 | 2019-06-28 | 厦门拓宝科技有限公司 | A kind of Novel limousine water level sensor communicating circuit based on solid conductor |
-
2018
- 2018-10-31 CN CN201811286199.3A patent/CN109360403B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002330231A (en) * | 2001-04-27 | 2002-11-15 | Kouga Denshi Kk | Data transmitter and automatic meter-reading system using the same |
| CN102044139A (en) * | 2009-10-21 | 2011-05-04 | 深圳市合信达控制系统有限公司 | Two-wire non-polar connection power supply and communication circuit |
| CN201854277U (en) * | 2010-10-19 | 2011-06-01 | 曼瑞德自控系统（乐清）有限公司 | Single-wire communication circuit |
| CN107168901A (en) * | 2016-03-08 | 2017-09-15 | 德昌电机(深圳)有限公司 | Mongline two-way communication circuit |
| CN106356828A (en) * | 2016-08-24 | 2017-01-25 | 珠海格力电器股份有限公司 | Home bus communication system and processing method for home bus communication system |
| CN207816404U (en) * | 2018-01-26 | 2018-09-04 | 厦门拓宝科技有限公司 | A kind of caravan device for detecting water level of water tank of anti-grounding interference |
| CN207926616U (en) * | 2018-02-01 | 2018-09-28 | 四川华鹏电源有限公司 | A kind of meter bus communication circuit device |
| CN209044864U (en) * | 2018-10-31 | 2019-06-28 | 厦门拓宝科技有限公司 | A kind of Novel limousine water level sensor communicating circuit based on solid conductor |
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| CN109360403B (en) | 2024-02-06 |
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