CN209541863U - A kind of photovoltaic water pump liquid level wireless sensor - Google Patents
A kind of photovoltaic water pump liquid level wireless sensor Download PDFInfo
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- CN209541863U CN209541863U CN201820221453.0U CN201820221453U CN209541863U CN 209541863 U CN209541863 U CN 209541863U CN 201820221453 U CN201820221453 U CN 201820221453U CN 209541863 U CN209541863 U CN 209541863U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 239000007788 liquid Substances 0.000 title claims abstract description 23
- 238000004891 communication Methods 0.000 claims abstract description 50
- 239000003990 capacitor Substances 0.000 claims description 47
- 239000004065 semiconductor Substances 0.000 claims description 25
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 239000013078 crystal Substances 0.000 claims description 8
- 238000013461 design Methods 0.000 abstract description 7
- 230000005540 biological transmission Effects 0.000 description 4
- 230000008054 signal transmission Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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Abstract
The utility model discloses a kind of photovoltaic water pump liquid level wireless sensors, including central control unit MCU, level sensor float switch SW1；Level sensor float switch SW1 is connect by I/O pin with central control unit MCU；Central control unit MCU is connect by I/O pin with solar powered module, and solar powered module output end is separately connected central control unit MCU and wireless data transceiver module by route；Communication switch is provided between solar powered module output end and wireless data transceiver module, communication switch is connect by I/O pin with central control unit MCU.The utility model so that without installing connecting wire when use, and does not need communication traffic expense using the design of wireless data transceiver module, has saved use cost.On the other hand, by using the design of solar powered module, enable the utility model automatic identification day and night, night automatic shutdown automatically wakes up daytime.
Description
Technical field
The utility model relates to photovoltaic applied technical fields more particularly to a kind of photovoltaic water pump liquid level wireless to sense
Device.
Background technique
As photovoltaic system cost reduces, photovoltaic water pump application constantly promoted, photovoltaic water pump system application increasingly at
Ripe, the use of photovoltaic water pump system is also gradually converted to commercial operation by government guidance.In general photovoltaic water pump is due to day
Make out, the characteristics of ending at sunset, can be guarded from independent main operation without special messenger, but sometimes due to sunshine condition it is good,
And user's water consumption is little, user's reservoir is easy for filling water, closes photovoltaic water pump system so if unmanned at this time, then
Water pump system will continue to run, to will lead to reservoir spilling, on the one hand may cause water resource waste, on the other hand may
Also road and arable land can be flooded, user is caused to perplex.
Therefore people can be used water level sensor and be acquired feedback to water level information, and well known data acquire transmission side
Formula is by two kinds, 1, the transmission of cabled digital signal；2, wireless phone module by signal is transmitted；Compare on first way transmission signalling technique
It is easier to realize, but since switching signal all uses low level signal, one side long distance signal transmission is highly susceptible to interfere,
It is also easily destroyed simultaneously, on the other hand the purchase cost apart from too long conducting wire and construction and installation cost are relatively high, therefore
This scheme should not be used in high-lift pump system.Second of signal transmission form, it is relatively reliable, but due to needing mobile wireless
Network support needs mobile wireless network covering to system installation, while also needing to pay network operation expense, once data pass
Defeated terminal defaulting subscriber, feedback fail, therefore it is proposed that photovoltaic water pump liquid level sensor, to solve the above problems.
Summary of the invention
The utility model aim is to solve the above problems, and designs a kind of photovoltaic water pump powered using solar-energy photo-voltaic cell
Liquid level wireless sensor so that signal acquisition Transmission system it is cheap, it is reliable and stable, install and use and safeguard more convenient.
To achieve the goals above, the technical solution of the utility model is:
A kind of photovoltaic water pump liquid level wireless sensor, including central control unit MCU, level sensor float switch SW1, nothing
Line data transmit-receive module, solar powered module；Level sensor float switch SW1 passes through I/O pin and central control unit MCU
The collected position signal of water level float switch SW1 is converted into data-signal by connection, central control unit MCU, logical by SPI
Letter interface transfers data to wireless data transceiver module, then wireless data transceiver module by data in a manner of electromagnetic wave
It is sent out；It is characterized by: the driving of modules and the work cooperation of intermodule are unified by central control unit MCU
Coordinated control, the central control unit MCU is connect by I/O pin with solar powered module, to control battery
Charge and discharge and the voltage and current data for acquiring solar panels and battery, solar powered module output end pass through route point
Not Lian Jie central control unit MCU and wireless data transceiver module, be that central control unit MCU and wireless data transceiving mould supply
Electricity；Communication switch is provided between solar powered module output end and wireless data transceiver module, communication switch is drawn by I/O
Foot is connect with central control unit MCU, and from central control unit MCU decision, whether open communication is switched to wireless data transceiving mould
Block power supply.
Further, the central control unit connects local communication interface by RX/TX interface, to realize photovoltaic water
Pump the local communication and Function Extension of liquid level wireless sensor.
Further, the solar powered module includes solar components input terminal PV+, solar components input terminal PV
+ connect with the one end resistance R1, the resistance R1 other end connects the end ADC1_IN8 of central control unit MCU, the connection of the one end resistance R5
The end analog-to-digital conversion interface ADC1_IN8 of central control unit MCU, other end ground connection；It is defeated that diode D1 anode connects solar components
Enter and hold PV+, diode D1 cathode is connected to the drain electrode of switch metal-oxide-semiconductor Q1, and the one end resistance R2 connects the drain electrode of metal-oxide-semiconductor Q1, another
End is connected to metal-oxide-semiconductor Q1 grid, and the emitter of triode Q3 is connected to the grid of metal-oxide-semiconductor Q1, the grounded collector of triode Q3,
The one end resistance R8 is connected to the base stage of triode Q3, and the other end is connected to the port PA11 of central control unit MCU, battery
The anode of BT1 is connected to the source electrode of switch metal-oxide-semiconductor Q1, the cathode ground connection of battery BT1；The one end resistance R3 is connected to battery
The anode of BT1, the other end are connected to the end ADC1_IN9 of central control unit MCU；It is single that the one end resistance R6 is connected to center control
The end ADC1_IN9 of first MCU, other end ground connection；Voltage-stablizer T1 input terminal is connected to the anode of battery BT1, and output end is connected to
The one end capacitor C1 powers as power supply VCC to central control unit MCU, the end GND ground connection；Capacitor C1 other end ground connection, resistance R4
One end is connected to the end power supply VCC, and the other end connects the grid of metal-oxide-semiconductor Q2, and the drain electrode of metal-oxide-semiconductor Q2 connects the end power supply VCC, and source electrode connects
Power supply vdd terminal is connect as wireless data transceiver module power supply；The emitter of triode Q4 is connected to the grid of metal-oxide-semiconductor Q2, collector
Ground connection, base stage are connected to one end of resistance R7；The other end of resistance R7 is connected to the PA12 pin of central control unit MCU.
Further, the VCC pin of the central control unit MCU connects the end power supply VCC, the end VSS ground connection, and USART leads to
Letter interface is connected respectively to the corresponding pin of connecting terminal P1；The pin OSC_IN and OSC_OUT of central control unit MCU distinguishes
It is connected to the both ends of crystal oscillator Y2；The one end resistance R9 connects power supply VCC, and the other end connects the port of level sensor float switch SW1
The port 2 of 1, level sensor float switch SW1 are grounded, and the one end resistance R10 connects the port 1 of level sensor float switch SW1, separately
One end is connected to the PA1 pin of central control unit MCU；The SPI communication corresponding pin of central control unit MCU is connected to wirelessly
The correspondence SPI communication pin of communication controler WSP_IC.
Further, the wireless data transceiver module includes wireless communication controller WSP_IC, wireless communication controller
The VDD pin of WSP_IC connects power supply vdd terminal；XIN and XOUT pin is connected respectively to the both ends of crystal oscillator Y1, pin GPIO1 and
GPIO2 is connected respectively to 3,4 pins of transmitting-receiving conversion controling switch SW2；The one end inductance L2 connects power vd D, other end connection
The TX pin of wireless communication controller WSP_IC；The one end capacitor C5 connects the TX pin of wireless communication controller WSP_IC, another
End connection one end inductance L3, the inductance L3 other end connect one end of capacitor C2 and inductance L1；Capacitor C2 other end ground connection, inductance L1
The other end connects capacitor C3 and capacitor C4, capacitor C3 other end ground connection, capacitor C4 other end connection transmitting-receiving conversion controling switch SW2
1 end of pin；The both ends inductance L5 are connected respectively to RXn the and RXp pin of wireless communication controller WSP_IC, the one end capacitor C10
Connect the RXp pin of WSP_IC, other end ground connection；The one end capacitor C6 connects the RXn pin of WSP_IC, and other end connection transmitting-receiving turns
Change 2 end of pin of control switch SW2；The one end capacitor C7 is connected to 5 end of pin of transmitting-receiving conversion controling switch SW2, and the other end connects
It is connected to one end of inductance L4 and capacitor C8, capacitor C8 other end ground connection, the inductance L4 other end connects antenna E1, and the one end capacitor C9 connects
Connect antenna, other end ground connection.
Compared with prior art, the utility model has the advantages and positive effects of:
The utility model using the design of wireless data transceiver module so that without installing connecting wire when use, and not
Communication traffic expense is needed, use cost, and long distance of signal transmission, strong antijamming capability have been saved.On the other hand, pass through
Using the design of solar powered module, enable the utility model automatic identification day and night, night automatic shutdown, daytime from
Dynamic to wake up, battery is only used as spare use, effectively extends the service life of battery.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is photovoltaic water pump liquid level wireless Fundamentals of Sensors block diagram；
Fig. 2 is solar powered module circuit diagram；
Fig. 3 is that central control unit and wireless data transceiver module connect circuit diagram.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, any modification, equivalent replacement, improvement and so on should be included in the utility model
Within protection scope.
As shown in Figure 1, Figure 2 and Figure 3, a kind of photovoltaic water pump liquid level wireless sensor, including central control unit MCU, water
Position sensing float switch SW1, wireless data transceiver module, solar powered module；Level sensor float switch SW1 passes through I/O
Pin is connect with central control unit MCU, and the central control unit MCU is connect by I/O pin with solar powered module,
To control the charge and discharge of battery BT1 and acquire the voltage and current data of solar panels and battery BT1；Solar energy supplies
Electric module output end is separately connected central control unit MCU and wireless data transceiver module by route, is central control unit
MCU and the power supply of wireless data transceiving mould；The driving of modules and the work of intermodule cooperate by central control unit MCU
It is uniformly coordinated control；The collected position signal of water level float switch SW1 is converted into data-signal by central control unit MCU,
Wireless data transceiver module is transferred data to by SPI communication interface, then passes through wireless data transceiver module for data with electricity
The mode of magnetic wave is sent out；It is provided with communication switch between solar powered module output end and wireless data transceiver module,
Communication switch is connect by I/O pin with central control unit MCU, and by central control unit MCU decision, whether open communication is opened
It closes and powers to wireless data transceiver module.
Utility model works principle works as central control unit daytime as shown in Figure 1: and detects that photovoltaic cell voltage is normal
Afterwards, pin is controlled by I/O and sends charging control signal to solar powered module, subsequent central control unit is drawn by I/O
It is wireless data transceiver module for power supply that foot, which opens communication switch, and by SPI serial communication interface to wireless data transceiving mould
Block is configured, and photovoltaic water pump liquid level wireless sensor enters normal operating conditions.Night drops with sunlight irradiation intensity
It is low, after central control unit can't detect photovoltaic cell normal working voltage, wireless receiving and dispatching will be cut off by control communication switch
Module for power supply achievees the purpose that save electric energy.
Under daytime system health, the level state of central control unit real-time detection level sensor float switch, if
Level sensor float switch input pin is high level state, then central control unit determines that liquid level for high liquid level state and passes through
Wireless data transceiver module is sent out high liquid level status number signal, when level sensor float switch input pin is low level
When state, central control unit determines that liquid level is sent out low liquid level number for low liquid level state and by wireless data transceiver module
Word signal.
The central control unit connects local communication interface by RX/TX interface, and local communication interface is to realize light
Lie prostrate the local communication and Function Extension of water pump liquid level wireless sensor.
The solar powered module includes solar components input terminal PV+, solar components input terminal PV+ and resistance R1
One end connection, the resistance R1 other end connect the end ADC1_IN8 of central control unit MCU, and the connection center control of the one end resistance R5 is single
The end analog-to-digital conversion interface ADC1_IN8 of first MCU, other end ground connection；Diode D1 anode meets solar components input terminal PV+, and two
Pole pipe D1 cathode is connected to the drain electrode of switch metal-oxide-semiconductor Q1, and the one end resistance R2 connects the drain electrode of metal-oxide-semiconductor Q1, and the other end is connected to MOS
Pipe Q1 grid, the emitter of triode Q3 are connected to the grid of metal-oxide-semiconductor Q1, the grounded collector of triode Q3, the one end resistance R8
It is connected to the base stage of triode Q3, the other end is connected to the port PA11 of central control unit MCU, and the anode of battery BT1 is even
It is connected to the source electrode of switch metal-oxide-semiconductor Q1, the cathode ground connection of battery BT1；The one end resistance R3 is connected to the anode of battery BT1, separately
One end is connected to the end ADC1_IN9 of central control unit MCU；The one end resistance R6 is connected to the ADC1_ of central control unit MCU
The end IN9, other end ground connection；Voltage-stablizer T1 input terminal is connected to the anode of battery BT1, and output end is connected to the one end capacitor C1 work
It powers for power supply VCC to central control unit MCU, the end GND ground connection；Capacitor C1 other end ground connection, the one end resistance R4 is connected to electricity
The source end VCC, the other end connect the grid of metal-oxide-semiconductor Q2, and the drain electrode of metal-oxide-semiconductor Q2 connects the end power supply VCC, and source electrode connects power supply vdd terminal
For wireless data transceiver module power supply；The emitter of triode Q4 is connected to the grid of metal-oxide-semiconductor Q2, grounded collector, and base stage connects
It is connected to one end of resistance R7；The other end of resistance R7 is connected to the PA12 pin of central control unit MCU.
The VCC pin of the central control unit MCU connects the end power supply VCC, the end VSS ground connection, USART communication interface difference
It is connected to the corresponding pin of connecting terminal P1；The pin OSC_IN and OSC_OUT of central control unit MCU is connected respectively to crystal oscillator
The both ends of Y2；The one end resistance R9 connects power supply VCC, and the other end connects the port 1 of level sensor float switch SW1, level sensor
The port 2 of float switch SW1 is grounded, and the one end resistance R10 connects the port 1 of level sensor float switch SW1, and the other end is connected to
The PA1 pin of central control unit MCU；The SPI communication corresponding pin of central control unit MCU is connected to wireless communication controller
The correspondence SPI communication pin of WSP_IC.
The wireless data transceiver module includes wireless communication controller WSP_IC, wireless communication controller WSP_IC's
VDD pin connects power supply vdd terminal；XIN and XOUT pin is connected respectively to the both ends of crystal oscillator Y1, pin GPIO1 and GPIO2 difference
It is connected to 3,4 pins of transmitting-receiving conversion controling switch SW2；The one end inductance L2 connects power vd D, other end connection wireless communication control
The TX pin of device WSP_IC processed；The one end capacitor C5 connects the TX pin of wireless communication controller WSP_IC, and the other end connects inductance
The one end L3, the inductance L3 other end connect one end of capacitor C2 and inductance L1；Capacitor C2 other end ground connection, the connection of the inductance L1 other end
Capacitor C3 and capacitor C4, capacitor C3 other end ground connection, 1 end of pin of capacitor C4 other end connection transmitting-receiving conversion controling switch SW2；
The both ends inductance L5 are connected respectively to RXn the and RXp pin of wireless communication controller WSP_IC, and the one end capacitor C10 connects WSP_IC
RXp pin, the other end ground connection；The one end capacitor C6 connects the RXn pin of WSP_IC, other end connection transmitting-receiving conversion controling switch
2 end of pin of SW2；The one end capacitor C7 is connected to 5 end of pin of transmitting-receiving conversion controling switch SW2, and the other end is connected to inductance L4
With one end of capacitor C8, capacitor C8 other end ground connection, the inductance L4 other end connects antenna E1, and the one end capacitor C9 connects antenna, separately
One end ground connection.
Circuit as shown in Figure 2 and Figure 3, wherein resistance R1, R5 constitutes solar voltage Acquisition Circuit；Metal-oxide-semiconductor Q1, resistance R2,
R8, diode D1, triode Q3 form charging control switch circuit；Resistance R3, R6 form battery voltage Acquisition Circuit, pressure stabilizing
Device T1, capacitor C1 constitute power supply VCC output voltage stabilizing circuit；Metal-oxide-semiconductor Q2, resistance R4, R7, triode Q4 constitute power vd D output
Circuit；Resistance R9, R10, level sensor float switch SW1 constitute water level detection circuit, crystal oscillator Y2, central control unit MCU structure
At core control part, wireless communication controller WSP_IC, crystal oscillator Y1, inductance L1, L2, L3, L4, L5, capacitor C2, C3, C4,
C5, C6, C7, C8, C9, C10, input/output switching SW2, antenna E1 together constitute wireless data transceiver module.
The utility model using the design of wireless data transceiver module so that without installing connecting wire when use, and not
Communication traffic expense is needed, use cost, and long distance of signal transmission, strong antijamming capability have been saved.On the other hand, pass through
Using the design of solar powered module, enable the utility model automatic identification day and night, night automatic shutdown, daytime from
Dynamic to wake up, battery is only used as spare use, effectively extends the service life of battery.
Claims (5)
1. a kind of photovoltaic water pump liquid level wireless sensor, including central control unit MCU, level sensor float switch SW1；Water level
Sensing float switch SW1 is connect by I/O pin with central control unit MCU；It is characterized by: the central control unit
MCU is connect by I/O pin with solar powered module, and solar powered module output end is separately connected central control by route
Unit MCU processed and wireless data transceiver module；It is provided between solar powered module output end and wireless data transceiver module
Communication switch, communication switch are connect by I/O pin with central control unit MCU.
2. photovoltaic water pump liquid level wireless sensor as described in claim 1, it is characterised in that: the central control unit passes through
RX/TX interface connects local communication interface.
3. photovoltaic water pump liquid level wireless sensor as described in claim 1, it is characterised in that: the solar powered module packet
Solar components input terminal PV+ is included, solar components input terminal PV+ is connect with the one end resistance R1, in the connection of the resistance R1 other end
The end ADC1_IN8 of control unit MCU is entreated, the one end resistance R5 connects the analog-to-digital conversion interface ADC1_IN8 of central control unit MCU
End, other end ground connection；Diode D1 anode meets solar components input terminal PV+, and diode D1 cathode is connected to switch metal-oxide-semiconductor Q1
Drain electrode, the one end resistance R2 connects the drain electrode of metal-oxide-semiconductor Q1, and the other end is connected to metal-oxide-semiconductor Q1 grid, and the emitter of triode Q3 connects
It is connected to the grid of metal-oxide-semiconductor Q1, the grounded collector of triode Q3, the one end resistance R8 is connected to the base stage of triode Q3, the other end
It is connected to the port PA11 of central control unit MCU, the anode of battery BT1 is connected to the source electrode of switch metal-oxide-semiconductor Q1, battery
The cathode of BT1 is grounded；The one end resistance R3 is connected to the anode of battery BT1, and the other end is connected to central control unit MCU's
The end ADC1_IN9；The one end resistance R6 is connected to the end ADC1_IN9 of central control unit MCU, other end ground connection；Voltage-stablizer T1 is defeated
Enter the anode that end is connected to battery BT1, output end is connected to the one end capacitor C1 as power supply VCC and gives central control unit MCU
Power supply, the end GND ground connection；Capacitor C1 other end ground connection, the one end resistance R4 are connected to the end power supply VCC, and the other end connects metal-oxide-semiconductor Q2's
Grid, the drain electrode of metal-oxide-semiconductor Q2 connect the end power supply VCC, and source electrode connects power supply vdd terminal as wireless data transceiver module power supply；Three poles
The emitter of pipe Q4 is connected to the grid of metal-oxide-semiconductor Q2, grounded collector, and base stage is connected to one end of resistance R7；Resistance R7's is another
Outer one end is connected to the PA12 pin of central control unit MCU.
4. photovoltaic water pump liquid level wireless sensor as claimed in claim 3, it is characterised in that: the central control unit MCU
VCC pin connect the end power supply VCC, the end VSS ground connection, USART communication interface is connected respectively to the corresponding pin of connecting terminal P1；
The pin OSC_IN and OSC_OUT of central control unit MCU are connected respectively to the both ends of crystal oscillator Y2；The one end resistance R9 connects power supply
VCC, the other end connect the port 1 of level sensor float switch SW1, and the port 2 of level sensor float switch SW1 is grounded, resistance
The one end R10 connects the port 1 of level sensor float switch SW1, and the other end is connected to the PA1 pin of central control unit MCU；In
The SPI communication corresponding pin of centre control unit MCU is connected to the correspondence SPI communication pin of wireless communication controller WSP_IC.
5. photovoltaic water pump liquid level wireless sensor as claimed in claim 4, it is characterised in that: the wireless data transceiver module
Including wireless communication controller WSP_IC, the VDD pin of wireless communication controller WSP_IC connects power supply vdd terminal；XIN and XOUT
Pin is connected respectively to the both ends of crystal oscillator Y1, and pin GPIO1 and GPIO2 are connected respectively to 3, the 4 of transmitting-receiving conversion controling switch SW2
Pin；The one end inductance L2 connects power vd D, and the other end connects the TX pin of wireless communication controller WSP_IC；The one end capacitor C5
The TX pin of wireless communication controller WSP_IC is connected, the other end connects the one end inductance L3, and the inductance L3 other end connects capacitor C2
With one end of inductance L1；Capacitor C2 other end ground connection, the inductance L1 other end connect capacitor C3 and capacitor C4, another termination of capacitor C3
Ground, 1 end of pin of capacitor C4 other end connection transmitting-receiving conversion controling switch SW2；The both ends inductance L5 are connected respectively to wireless communication
RXn the and RXp pin of controller WSP_IC, the one end capacitor C10 connect the RXp pin of WSP_IC, other end ground connection；Capacitor C6 mono-
The RXn pin of end connection WSP_IC, 2 end of pin of other end connection transmitting-receiving conversion controling switch SW2；The one end capacitor C7 is connected to
5 end of pin of conversion controling switch SW2 is received and dispatched, the other end is connected to one end of inductance L4 and capacitor C8, another termination of capacitor C8
Ground, the inductance L4 other end connect antenna E1, and the one end capacitor C9 connects antenna, other end ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820221453.0U CN209541863U (en) | 2018-02-08 | 2018-02-08 | A kind of photovoltaic water pump liquid level wireless sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820221453.0U CN209541863U (en) | 2018-02-08 | 2018-02-08 | A kind of photovoltaic water pump liquid level wireless sensor |
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| Publication Number | Publication Date |
|---|---|
| CN209541863U true CN209541863U (en) | 2019-10-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820221453.0U Expired - Fee Related CN209541863U (en) | 2018-02-08 | 2018-02-08 | A kind of photovoltaic water pump liquid level wireless sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113162831A (en) * | 2021-02-03 | 2021-07-23 | 太原向明智控科技有限公司 | Cascadable self-addressing tilt angle sensor and addressing method thereof |
-
2018
- 2018-02-08 CN CN201820221453.0U patent/CN209541863U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113162831A (en) * | 2021-02-03 | 2021-07-23 | 太原向明智控科技有限公司 | Cascadable self-addressing tilt angle sensor and addressing method thereof |
| CN113162831B (en) * | 2021-02-03 | 2023-05-12 | 太原向明智控科技有限公司 | Cascade self-addressing inclination angle sensor and addressing method thereof |
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Granted publication date: 20191025 |