CN203772355U - Wireless water level sensor - Google Patents
Wireless water level sensor Download PDFInfo
- Publication number
- CN203772355U CN203772355U CN201420167263.7U CN201420167263U CN203772355U CN 203772355 U CN203772355 U CN 203772355U CN 201420167263 U CN201420167263 U CN 201420167263U CN 203772355 U CN203772355 U CN 203772355U
- Authority
- CN
- China
- Prior art keywords
- level sensor
- water level
- pressure
- wireless
- radio transmitter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 229920002545 silicone oil Polymers 0.000 claims abstract description 9
- 239000011159 matrix material Substances 0.000 claims description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 229910052710 silicon Inorganic materials 0.000 claims description 4
- 239000010703 silicon Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 3
- 229910021421 monocrystalline silicon Inorganic materials 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 235000012239 silicon dioxide Nutrition 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 5
- 238000005259 measurement Methods 0.000 abstract description 2
- 239000012528 membrane Substances 0.000 abstract 3
- 239000000945 filler Substances 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Abstract
The utility model provides a wireless water level sensor which comprises a power supply, a wireless emission circuit board and a water level sensor body, wherein the wireless emission circuit board is connected with the water level sensor body through a communication line, the water level sensor body comprises a base body, a pressure-sensitive chip is installed inside the base body and is fixed and sealed in a shell, filler playing a role in fixation is arranged above the pressure-sensitive chip, a ripper wave membrane is arranged on the side, opposite to a pressure-sensitive part, of the pressure-sensitive chip, and silicone oil is filled between the ripper wave membrane and the pressure-sensitive chip to isolate the ripple wave membrane from the pressure-sensitive chip; a pressure guiding connector is connected to the base body, an opening of the pressure guiding connector is aligned with the pressure-sensitive chip, electric signals are led out of the pressure-sensitive chip through a lead penetrating into the base body, and the pressure-sensitive chip is connected to the wireless emission circuit board through the communication line. According to the wireless water level sensor, the water level measurement function and the wireless data transmitting and receiving function are integrated, teletransmission of water level information can be achieved in a wireless mode, and real-time online water level monitoring is realized.
Description
Technical field
The utility model relates to a kind of sensor, especially a kind of wireless water level sensor of monitoring water level.
Background technology
Along with expanding economy, people pay close attention to increasingly and pay attention to these liquid in river, reservoir and container etc., and the height of liquid level especially water level affects people's productive life to a certain extent.Can mode, accuracy, the data transmission of monitoring water level directly have influence on observation personnel and understand in time the multidate information of water level and make corresponding preventive measure.The mode of surveying at present water level has the modes such as graduated scale, level sensor, and these are observed by artificial observation or cable transmission data substantially.The phenomenons such as wiring bothers, builds a station nearby owing to often there will be in actual installation, measuring process, measurement data out of true, error are large; make observation personnel be difficult to make judgement accurately and timely; and needing to a certain extent the observation personnel observed and recorded of being in the action, this is difficult to ensure observation personnel's personal safety.
Summary of the invention
The purpose of this utility model is to provide a kind of wireless water level sensor, the functions such as level measuring, wireless data transceiving that it is integrated, can water level information be transferred in far-end research station or observation personnel by wireless mode, realize real time on-line monitoring water level function.The technical solution adopted in the utility model is:
A wireless water level sensor, comprises power supply, radio transmitter plate and level sensor, and radio transmitter plate is connected by connection with level sensor.Described level sensor comprises a matrix, and a presser sensor chip is installed in the inside of matrix, and this presser sensor chip is fixed and is sealed in a housing; Presser sensor chip top has been provided with the filling material of fixation, and the opposite face of the presser sensor portion of presser sensor chip is provided with ripple diaphragm, between ripple diaphragm and presser sensor chip, by filled with silicone oil, isolates; Impulse connects mouth and is connected on matrix, and impulse connects the opening of mouth and aims at presser sensor chip; Presser sensor chip is drawn electric signal by a lead-in wire that penetrates matrix, and is connected to radio transmitter plate by connection.
Further, in described matrix, also have for pouring into the passage of silicone oil.
Further, described presser sensor chip comprises three-decker, and top layer utilizes monocrystalline silicon to etch Wheatstone bridge that strain resistors that four resistances are equal form as pressure sensitive portion, middlely with insulation silicon dioxide, isolates, and lower floor's use silicon is as substrate.
Further, described radio transmitter plate comprises feed circuit, sample circuit, microprocessor, RF transmit-receive circuit and antenna; RF transmit-receive circuit, microprocessor and feed circuit connect power supply; Microprocessor connects RF transmit-receive circuit, sample circuit and feed circuit; RF transmit-receive circuit connects antenna.The output terminal water receiving level sensor of feed circuit; Sample circuit is electrically connected to level sensor; Sample circuit is sampled to the electric signal of level sensor output, then the sampled signal after processing is input to microprocessor, and microprocessor processes sampled signal obtains water level information; RF transmit-receive circuit is for sending water level information data wireless.
Further, power supply and radio transmitter plate are sealed in a water-proof metal box jointly, level sensor is electrically connected by the radio transmitter plate of aviation connector and water-proof metal box inside, and the antenna of radio transmitter plate is drawn by external antenna.
The utility model has the advantage of:
1) can carry out by wireless mode the long-distance transmissions of waterlevel data.
2) dynamic response is good, highly sensitive, precision is high, integrated level is high.
3) wireless water level sensor hermetically-sealed construction is safe and reliable, favorable sealing property.
4) adopt internal cell power supply, without outside additional power supply.
5) can significantly reduce observation personnel working strength.
Accompanying drawing explanation
Fig. 1 is that structure of the present utility model forms schematic diagram.
Fig. 2 is level sensor structural representation of the present utility model.
Fig. 3 is radio transmitter plate theory diagram of the present utility model.
Embodiment
Below in conjunction with concrete drawings and Examples, the utility model is described in further detail.
As depicted in figs. 1 and 2, this programme mainly can be divided into radio transmitter plate 1 and level sensor 2 two large divisions in function.Radio transmitter plate 1 comprises feed circuit, sample circuit, microprocessor, RF transmit-receive circuit and antenna etc.Level sensor 2 mainly connects mouth 8 etc. by lead-in wire 3, matrix 4, silicone oil 5, presser sensor chip 6, ripple diaphragm 7 and impulse and forms.
Fig. 2 is the detailed structure view of level sensor 2.Level sensor 2 comprises a matrix 4, and a presser sensor chip 6 is installed in the inside of matrix 4, and this presser sensor chip 6 is fixed and is sealed in a Stainless Steel Shell; Presser sensor chip 6 tops have been provided with the filling material 9 of fixation, and the opposite face of the presser sensor portion of presser sensor chip 6 is provided with ripple diaphragm 7, between ripple diaphragm 7 and presser sensor chip 6, with silicone oil 5, fill and isolate; Impulse connects mouth 8 and is connected to matrix 4 lower ends, and impulse connects the opening of mouth 8 and aims at presser sensor chip 6; Presser sensor chip 6 is drawn electric signal by a lead-in wire 3 that penetrates matrix 4, and is connected to radio transmitter plate 1 by connection 10.Silicone oil 5 is that the passage 51 by opening in matrix 4 pours into matrix.
Core in level sensor 2 is presser sensor chip 6, it adopts high temperature resistant SOI(Silicon-On-Insulator) structured material makes, top layer utilizes monocrystalline silicon to etch Wheatstone bridge that strain resistors that four resistances are equal form as pressure sensitive portion, centre isolates with insulation silicon dioxide, lower floor uses silicon as substrate, to all the other two-layer mechanical support that provides.In Fig. 2, presser sensor chip 6 is that presser sensor portion installs downwards.After level sensor 2 is put in water, impulse connects mouth 8 opening parts and introduces after water when ripple diaphragm 7 affords the stress of measured medium, ripple diaphragm 7 deforms, produce ess-strain, then by silicone oil 5 transmission of pressures, make presser sensor chip 6 experience pressure, the electronic behavior layer of silicon wafer in the lattice of top layer is tightened up, makes internal charge start to flow, thereby Wheatstone bridge out of trim produces electric signal.
As shown in Figure 3, radio transmitter plate 1 comprises feed circuit, sample circuit, microprocessor, RF transmit-receive circuit and antenna; RF transmit-receive circuit, microprocessor and feed circuit connect power supply; Microprocessor connects RF transmit-receive circuit, sample circuit and feed circuit; RF transmit-receive circuit connects antenna; The output terminal water receiving level sensor 2 of feed circuit, it provides stable operating voltage for level sensor 2, guarantees that level sensor 2 normally works.
Sample circuit signal input part is received on level sensor 2 output leads 3 with connection 10, sample circuit is sampled to the electric signal of level sensor 2 outputs, by certain amplification and compensation, then the sampled signal after processing is input to microprocessor, microprocessor processes sampled signal obtains water level information; RF transmit-receive circuit is for sending water level information data wireless.
Radio transmitter plate 1 can adopt conventional continuous operation mode.Also can adopt discontinuous operation pattern, after microprocessor is waken up, microprocessor is controlled feed circuit output voltage and is made level sensor 2 work, after system stability, after microprocessor acquisition water level information, transferring data to RF transmit-receive circuit goes away its transmission, after the transmission that completes data, microprocessor cuts out feed circuit, and self also enters dormant state, to save battery.
The nRF24l01+ chip that RF transmit-receive circuit is mainly produced by nordic company forms; The TPS61200 chip that feed circuit are mainly produced by TIX forms.
Structurally, radio transmitter plate 1, level sensor 2, power supply have formed wireless water level sensor jointly.Power acquisition high polymer battery, it provides operating voltage directly to feed circuit, microprocessor, RF transmit-receive circuit, and be jointly sealed in a waterproof, etch-proof Al-alloy metal box with radio transmitter plate 1, level sensor 2 is electrically connected by the radio transmitter plate 1 of aviation connector and water-proof metal box inside, and the antenna of radio transmitter plate 1 is drawn by external antenna.
After wireless water level sensor puts into operation, radio transmitter utilizes output electrical signals in level sensor to realize the wireless online monitoring of the ground water level informations such as reservoir, river.Therefore it has that real-time is good, low-cost, high reliability, simple in structure, working strength is low, the feature such as easy to maintenance.
Claims (5)
1. a wireless water level sensor, comprises power supply, radio transmitter plate (1) and level sensor (2), and radio transmitter plate (1) is connected by connection (10) with level sensor (2), it is characterized in that:
Described level sensor (2) comprises a matrix (4), in the inside of matrix (4), a presser sensor chip (6) is installed, and this presser sensor chip (6) is fixed and is sealed in a housing; Presser sensor chip (6) top has been provided with the filling material (9) of fixation, the opposite face of the presser sensor portion of presser sensor chip (6) is provided with ripple diaphragm (7), between ripple diaphragm (7) and presser sensor chip (6), with silicone oil (5), fills and isolates; Impulse connects mouth (8) and is connected to matrix (4) above, and impulse connects the opening of mouth (8) and aims at presser sensor chip (6); Presser sensor chip (6) is drawn electric signal by a lead-in wire (3) that penetrates matrix (4), and is connected to radio transmitter plate (1) by connection (10).
2. wireless water level sensor as claimed in claim 1, is characterized in that: in described matrix (4), also have the passage (51) for pouring into silicone oil (5).
3. wireless water level sensor as claimed in claim 1, it is characterized in that: described presser sensor chip (6) comprises three-decker, top layer utilizes monocrystalline silicon to etch Wheatstone bridge that strain resistors that four resistances are equal form as pressure sensitive portion, centre isolates with insulation silicon dioxide, and lower floor uses silicon as substrate.
4. the wireless water level sensor as described in claim 1,2 or 3, is characterized in that:
Described radio transmitter plate (1) comprises feed circuit, sample circuit, microprocessor, RF transmit-receive circuit and antenna; RF transmit-receive circuit, microprocessor and feed circuit connect power supply; Microprocessor connects RF transmit-receive circuit, sample circuit and feed circuit; RF transmit-receive circuit connects antenna;
The output terminal water receiving level sensor (2) of feed circuit; Sample circuit is electrically connected to level sensor (2); Sample circuit is sampled to the electric signal of level sensor (2) output, then the sampled signal after processing is input to microprocessor, and microprocessor processes sampled signal obtains water level information; RF transmit-receive circuit is for sending water level information data wireless.
5. the wireless water level sensor as described in claim 1,2 or 3, is characterized in that:
Power supply and radio transmitter plate (1) are sealed in a water-proof metal box jointly, level sensor (2) is electrically connected by the radio transmitter plate (1) of aviation connector and water-proof metal box inside, and the antenna of radio transmitter plate (1) is drawn by external antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420167263.7U CN203772355U (en) | 2014-04-08 | 2014-04-08 | Wireless water level sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420167263.7U CN203772355U (en) | 2014-04-08 | 2014-04-08 | Wireless water level sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203772355U true CN203772355U (en) | 2014-08-13 |
Family
ID=51289537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420167263.7U Expired - Lifetime CN203772355U (en) | 2014-04-08 | 2014-04-08 | Wireless water level sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203772355U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103868565A (en) * | 2014-04-08 | 2014-06-18 | 国家电网公司 | Wireless water level sensor |
| CN105571679A (en) * | 2016-03-07 | 2016-05-11 | 西安航空学院 | Water level monitoring system |
-
2014
- 2014-04-08 CN CN201420167263.7U patent/CN203772355U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103868565A (en) * | 2014-04-08 | 2014-06-18 | 国家电网公司 | Wireless water level sensor |
| CN105571679A (en) * | 2016-03-07 | 2016-05-11 | 西安航空学院 | Water level monitoring system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140813 |