CN110398274A - A kind of NB-IOT intelligent radio fluid level transmitter - Google Patents
A kind of NB-IOT intelligent radio fluid level transmitter Download PDFInfo
- Publication number
- CN110398274A CN110398274A CN201910611728.0A CN201910611728A CN110398274A CN 110398274 A CN110398274 A CN 110398274A CN 201910611728 A CN201910611728 A CN 201910611728A CN 110398274 A CN110398274 A CN 110398274A
- Authority
- CN
- China
- Prior art keywords
- pick
- iot
- plate
- shell
- fluid level
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/14—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measurement of pressure
- G01F23/18—Indicating, recording or alarm devices actuated electrically
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/80—Arrangements for signal processing
- G01F23/802—Particular electronic circuits for digital processing equipment
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Abstract
The present invention relates to a kind of NB-IOT intelligent radio fluid level transmitters, pick-up shell, gauge outfit, rear cover, structural member, probe, pressure sensor, pick-up plate and NB-IOT mould group, by the way that NB-IOT mould group is added in pick-up plate, instead of external gateway, the transmission for realizing data, on the one hand reduces wiring, reduces the influence to transmitter inside sensing element, guarantee that data accuracy, the airtightness of another aspect transmitter are more preferable.NB-IOT mould group also has wide coverage relative to external gateway, adapts to various working environments, low in energy consumption, and for battery life up to 10 years or more, cost reduced by 90% or more advantage.
Description
Technical field
The invention belongs to internet of things field more particularly to a kind of NB-IOT intelligent radio fluid level transmitters.
Background technique
Fluid level transmitter is a kind of sensor the most commonly used in industrial practice, is widely used in various industrial automatic control rings
Border, be related to water conservancy and hydropower, railway traffic, intelligent building, production automatic control, aerospace, military project, petrochemical industry, oil well, electric power, ship,
Numerous industries such as lathe, pipeline.That there are stand-by times is short for fluid level transmitter on existing market, coverage area is narrow, work consumption is high, needs
The defects of wanting external gateway to realize data transmission.
Summary of the invention
In order to solve the above technical problems, have the object of the present invention is to provide one kind and cover wide, the more, cost of connection
Low, low in energy consumption, the features such as framework is excellent NB-IOT intelligent radio fluid level transmitters.
In order to achieve the above purpose, present invention employs technical solutions below:
A kind of NB-IOT intelligent radio fluid level transmitter, comprising:
Pick-up shell, for installing the remaining part of transmitter；
Gauge outfit is mounted on pick-up shell, for showing real-time level value；
Rear cover is mounted on pick-up shell, for closing pick-up housing rear end；
Structural member is mounted on pick-up shell, for encapsulating pressure sensor；
Probe, is electrically connected with pick-up plate by water-proof wire, and the probe protrudes into test system, is used for measuring probe institute
Locate the pressure of position；
Pressure sensor is mounted in probe, for measuring the pressure value of test system；
Pick-up plate is encapsulated in pick-up shell, for receive pressure sensor electric signal, by electric signal amplification, will amplification
Electric signal afterwards converses liquid level information locating for pressure sensor and transmits information to NB-IOT mould group by calculating；
NB-IOT mould group, is mounted on pick-up plate, for receiving the electric signal of pick-up plate transmission, and data is wirelessly transferred
To Cloud Server.
By the way that NB-IOT mould group is added in pick-up plate, instead of external gateway, realizes the transmission of data, on the one hand reduce
Wiring reduces the influence to transmitter inside sensing element, guarantees data accuracy, the airtightness of another aspect transmitter
More preferably.NB-IOT mould group also has wide coverage relative to external gateway, adapts to various working environments, low in energy consumption, the battery longevity
For life up to 10 years or more, cost reduced by 90% or more advantage.
Preferably, further including antenna, the antenna is connect with NB-IOT mould group, for enhancing transmitting signal.By setting
Set antenna, enhancing transmitting signal.
Preferably, further including battery module, the battery module is mounted in pick-up shell, and battery module connects pick-up
Plate and NB-IOT mould group.Internal battery module replaces external power supply, reduces wiring, increases precision, and leakproofness is also stronger.
Preferably, the pick-up shell integrally casting shaping.It is with higher strong since pick-up shell is integrally formed
Degree.
Preferably, the pick-up shell includes the watchcase main body of cylinder tubbiness, is arranged at watchcase main body upper end center
Erecting bed and the fixed part that is arranged at watchcase lower body center；The gauge outfit is mounted on watchcase body front end, rear cover
It is mounted on watchcase body rear, structural member is mounted on fixed part lower end；The erecting bed is laterally arranged, and the upper end of erecting bed is square
The lower end of shape plane, erecting bed is arc-shaped and tangent with watchcase main body and fit closely with watchcase body surfaces, in erecting bed
At least one end be provided with antenna, the antenna is electrically connected with pick-up plate；The watchcase body interior is provided with former and later two solely
The vertical preceding installation cavity and rear installation cavity separated, before the pick-up plate is mounted in installation cavity, pick-up plate is electrically connected with gauge outfit
It connects, the battery module is mounted in rear installation cavity, and battery module is electrically connected with pick-up plate；The fixed part includes in vertical
Cylindrical connecting pin and the fixing end in horizontally U-shaped, the fixed part, which opens up, sets vertical internal screw thread, and structural member screw thread connects
It connects on fixed part.The structure of watchcase main body designs so that pressure transmitter internal part is in good order, and wiring is simple clear, and
The appearance is beautiful and elegant.
Preferably, being provided on the pick-up plate for receiving pressure sensor data and being done to data respective treated
Data processing module, the data processing module are connect with NB-IOT mould group serial ports.
Preferably, the NB-IOT mould group is using the remote C- mould group of shifting.
Preferably, the structural member upper end is cylindrical and outside is equipped with external screw thread, the threaded upper ends of structural member are connected
On fixed part；The lower end of the structural member is in up big and down small round table-like.The closing in of structural member lower end is related to water-proof wire
Play the role of constraint, ensure that water-proof wire enters vertically into pick-up shell, ensure that water-proof wire is securely limited, prevent because
The movement of water-proof wire damages the component in transmitter.
Preferably, the probe includes water guide head, pedestal, pipe cap and wire crimping cap, pressure sensor is arranged in pedestal
It is interior；The water guide head, pedestal, pipe cap are cylindrical, and water guide head threaded upper ends are connected to pedestal lower end, and the lower end of water guide head is opened
Equipped with the water-guiding hole being in communication with the outside, shown pedestal threaded upper ends are connected to pipe cap lower end, and the wire crimping cap is in down big up small
Round table-like to be used to fetter water-proof wire in protruding into vertically, the lower end of wire crimping cap is connect with pipe cap threaded upper ends.In test system
Liquid is entered by water-guiding hole, and with pressure sensor contacts, pressure sensor detects the pressure value of present position and is transferred to
Pick-up plate obtains the liquid level information of pressure sensor present position after the processing of data processing module on pick-up plate, and in table
It is shown at head, while liquid level information is radioed to Cloud Server by NB-IOT mould group.The up-small and down-big design of wire crimping cap will be prevented
Water power line securely limits, and prevents the movement because of water-proof wire from damaging to pressure sensor.Pressure sensor setting is existed
In pedestal, and the design that pedestal is separated with pipe cap reduces cost convenient for the replacement of pressure sensor.
Compared with prior art, the beneficial effects of the present invention are:
1. realizing the transmission of data instead of external gateway by the way that NB-IOT mould group is added in pick-up plate, on the one hand subtracting
Lack wiring, reduced the influence to transmitter inner part, guarantees data accuracy, the airtightness of another aspect transmitter is more
It is good.NB-IOT mould group also has wide coverage relative to external gateway, adapts to various working environments, low in energy consumption, battery life
Up to 10 years or more, cost reduced by 90% or more advantage.
2. internal battery module replaces external power supply, wiring is reduced, increases precision, leakproofness is also stronger.
3. the structure of watchcase main body designs so that pressure transmitter internal part is in good order, wiring is simple clear, and outer
It sees beautiful and generous.
4. structural member is threadedly coupled by upper end with the fixed part of watchcase main body, fixed by lower end and test system, Gu
Structural member is secured firmly in test system by the fixing end for determining portion by certain fastener, is fixed conveniently and secured.
5. the closing in of structural member lower end is related to playing the role of constraint to water-proof wire, it ensure that water-proof wire enters vertically into
Pick-up shell ensure that water-proof wire is securely limited, prevent the movement because of water-proof wire to the component in transmitter caused by damage
Evil.
6. the liquid in test system is entered by water-guiding hole, with pressure sensor contacts, pressure sensor detects institute
Locate the pressure value of position and be transferred to pick-up plate, is obtained locating for pressure sensor after the processing of data processing module on pick-up plate
The liquid level information of position, and shown at gauge outfit, while liquid level information is radioed to Cloud Server by NB-IOT mould group.
7. the up-small and down-big design of wire crimping cap securely limits water-proof wire, prevent the movement because of water-proof wire from passing to pressure
Sensor damages.
8. pressure sensor is arranged in pedestal, and the design that pedestal is separated with pipe cap, convenient for pressure sensor
Replacement, reduces cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram one of NB-IOT intelligent radio fluid level transmitter.
Fig. 2 is the side view of NB-IOT intelligent radio fluid level transmitter.
Fig. 3 is the AA cross-sectional view of Fig. 2.
Fig. 4 is the top view of NB-IOT intelligent radio fluid level transmitter.
Fig. 5 is the structural schematic diagram two of NB-IOT intelligent radio fluid level transmitter.
Fig. 6 is the front view of NB-IOT intelligent radio fluid level transmitter.
Fig. 7 is the BB cross-sectional view of Fig. 6.
Fig. 8 is the structural schematic diagram of rubber cock cap.
Fig. 9 is the CC cross-sectional view of Fig. 8.
Figure 10 is the top view of rubber cock cap.
Figure 11 is the bottom view of rubber cock cap.
Specific embodiment
A specific embodiment of the invention is made a detailed explanation with reference to the accompanying drawing.
Before the connecting pin of pick-up shell and gauge outfit is defined as in the present embodiment, front end, front etc., by pick-up shell with after
The connecting pin of lid is defined as rear, rear end, rear etc., and the junction in the mounting body of pick-up shell and outlet portion is defined as pick-up
The upper of shell, upper end, top etc., the junction of the mounting body of pick-up shell and mounting portion is defined as under pick-up shell,
Lower end, lower section etc..
A kind of NB-IOT intelligent radio fluid level transmitter as shown in FIG. 1 to FIG. 7, including pick-up shell 1, gauge outfit 2, rear cover
3, structural member 4, pick-up plate 5, probe a, NB-IOT mould group (not identified on figure), 8 pressure sensor 9 of antenna 7 and battery module
It is mounted in probe a.Wherein pick-up shell 1 is used to install the remaining part of transmitter；Gauge outfit 2 is mounted on pick-up shell 1, is used
In display real-time level value；Rear cover 3 is mounted on pick-up shell 1, for closing 1 rear end of pick-up shell；Structural member 4 is mounted on change
It send on shell 1, for transmitter to be fixed on test system；Pick-up plate 5 is encapsulated in pick-up shell 1, for receiving pressure
Electric signal is amplified and gives amplified electric signal transmission to NB-IOT mould group by 9 electric signal of sensor；NB-IOT mould group peace
On pick-up plate 5, for receiving the electric signal of the transmission of pick-up plate 5, and data are wirelessly transmitted to Cloud Server, NB-IOT mould
Group is using the remote BC-28 mould group of shifting；It is provided on pick-up plate 5 for receiving 9 data of pressure sensor and doing respective handling to data
Data processing module (not indicated on figure), which connect with NB-IOT mould group serial ports；Antenna 7 is mounted on change
It send in shell 1 and is connect with NB-IOT mould group, for enhancing transmitting signal；Battery module 8 is mounted in pick-up shell 1, battery mould
Block 8 connects pick-up plate 5 and NB-IOT mould group, and for providing power supply, battery module 8 uses 3.6V, 19AH lithium battery.By becoming
It send and NB-IOT mould group is added in plate 5 instead of external gateway realizes the transmission of data, on the one hand reduce wiring, reduce pair
The influence of transmitter inner part guarantees that data accuracy, the airtightness of another aspect transmitter are more preferable.NB-IOT mould group relative to
External gateway also has wide coverage, adapts to various working environments, low in energy consumption, and up to 10 years or more, cost dropped battery life
Low 90% or more.Internal battery module replaces external power supply, reduces wiring, increases precision, and leakproofness is also stronger.Gauge outfit 2 is liquid
Brilliant display gauge head, inside are equipped with circuit board (not identifying on figure), are provided on the circuit board for controlling liquid crystal display watch
The single-chip microcontroller of head display.5 grafting of pick-up plate on circuit boards, and pick-up plate 5 and circuit board concatenation.The milli of pressure sensor 9
It is regular to be transferred to NB-IOT mould group after grade electric signal is lied prostrate by the progress AD amplification of pick-up plate 5, and it is eventually sent to cloud clothes
It is engaged on device.
As shown in FIG. 1 to FIG. 7, pick-up shell 1 is integrally formed setting, the watchcase main body 11 including cylinder tubbiness, and setting exists
The fixed part 13 at 11 lower end center of watchcase main body is arranged in erecting bed 12 at 11 upper end center of watchcase main body.Gauge outfit 2 is installed
In 11 front end of watchcase main body, rear cover 3 is mounted on 11 rear end of watchcase main body, and structural member 4 is mounted on 13 lower end of fixed part.
Watchcase main body 11 is internally provided with former and later two independently divided preceding installation cavities 111 and rear installation cavity 112.Become
Before sending plate 5 to be mounted in installation cavity 111, pick-up plate 5 is electrically connected with gauge outfit 2, and the battery module 8 is mounted on rear installation cavity
It is small by this that aperture and battery module 8 are offered in 112, in the cavity wall of the preceding installation cavity 111 of connection and rear installation cavity 112
Hole is electrically connected with pick-up plate 5.Battery module 8 and pick-up plate 5 are divided by the way that preceding installation cavity 111 and rear installation cavity 112 is arranged
It separates, so that fluid level transmitter internal part is in good order, is routed and simply defines, while maximizing and reducing detection error.
The laterally setting of erecting bed 12, the upper end of erecting bed 12 is rectangle plane, which can be used for installing nameplate.Peace
The lower end of dress platform 12 is arc-shaped and tangent with watchcase main body 11 and fit closely with 11 surface of watchcase main body.The one of erecting bed 12
Interior installation space is held, antenna 7 is provided in the space and the space is communicated with preceding installation cavity 111, antenna 7 passes through electric wire and position
It is electrically connected in the pick-up plate 5 in preceding installation cavity 111.Antenna 7 outside mask be equipped with rubber cock cap 6, the one of rubber cock cap 6
End interference is plugged in the installation space of 12 one end of erecting bed.It is closed using hex bolts the another lower end of erecting bed 12.
As shown in Fig. 8~11, the end 61 of rubber cock cap 6 including truncated cone-shaped, columned anti-slip part 62 and columnar
Stopper portion 63.End face center in the portion that stoppers 63 offers blind hole 64, which extends to anti-slip part 62 and end 61.Rubber
Cock cap 6 is plugged on erecting bed 12 by stoppering 63 interference of portion, and antenna 7 is arranged in blind hole 64.It is set in the outside of anti-slip part 62
It is equipped with the anti-sliding rib 621 of a plurality of protrusion, when being easily installed and dismantle rubber cock cap 6, hand can be held.By the way that rubber cock cap is arranged
6 place antenna 7, on the one hand can play good sealing effect, on the other hand due to rubber will not shielded signal characteristic, make
Transmitting and the reception good for obtaining transducer signal, avoid metallic shield caused by due to being mounted in pick-up shell.
As shown in FIG. 1 to FIG. 7, fixed part 13 includes in the connecting pin 131 of vertical cylinder shape and consolidating in horizontally U-shaped
Fixed end 132.Fixed part 13, which opens up, sets vertical internal screw thread.
Structural member 4 is integrally formed, and 4 upper end of structural member is cylindrical and outside is equipped with external screw thread, the upper end spiral shell of structural member 4
Line is connected on fixed part 13.The lower end of structural member 4 is in up big and down small round table-like.The closing in of structural member lower end is related to waterproof
Electric wire plays the role of constraint, ensure that water-proof wire enters vertically into pick-up shell, ensure that water-proof wire is securely limited, and prevents
Only the component in transmitter is damaged because of the movement of water-proof wire.
Probe a includes water guide head a1, pedestal a2, pipe cap a3 and wire crimping cap a4, and pressure sensor is arranged in pedestal a2；
The water guide head a1, pedestal a2, pipe cap a3 are cylindrical, and water guide head a1 threaded upper ends are connected to the lower end pedestal a2, water guide head
The lower end of a1 offers the water-guiding hole being in communication with the outside, and shown pedestal a2 threaded upper ends are connected to the lower end pipe cap a3, the crimping
Cap a4 is in down big up small round table-like for fettering water-proof wire b in protruding into vertically, the lower end and the upper end pipe cap a3 of wire crimping cap a4
It is threadedly coupled.Liquid in test system is entered by water-guiding hole, and with pressure sensor contacts, pressure sensor detects locating
The pressure value of position is simultaneously transferred to pick-up plate, and position locating for pressure sensor is obtained after the processing of data processing module on pick-up plate
The liquid level information set, and shown at gauge outfit, while liquid level information is radioed to Cloud Server by NB-IOT mould group.Wire crimping cap
Up-small and down-big design securely limits water-proof wire, prevents the movement because of water-proof wire from damaging to pressure sensor.
Pressure sensor is arranged in pedestal, and the design that pedestal is separated with pipe cap, convenient for the replacement of pressure sensor, reduction at
This.
Above content is only illustrations made for the present invention described in this specification.Technology belonging to the present invention
The technical staff in field can make various modifications or additions to the described embodiments or by a similar method
Substitution, content without departing from description of the invention or beyond the scope defined by this claim should belong to this
The protection scope of invention.
Claims (9)
1. a kind of NB-IOT intelligent radio fluid level transmitter, it is characterised in that: include:
Pick-up shell (1), for installing the remaining part of transmitter；
Gauge outfit (2) is mounted on pick-up shell (1), for showing real-time level value；
Rear cover (3) is mounted on pick-up shell (1), for closing pick-up shell (1) rear end；
Structural member (4) is mounted on pick-up shell (1), for encapsulating pressure sensor (9)；
It pops one's head in (a), is electrically connected with pick-up plate (5) by water-proof wire (b), the probe (a) is protruded into test system, for surveying
The pressure of amount probe present position (a)；
Pressure sensor (9) is mounted in probe (a), for measuring the pressure value of test system；
Pick-up plate (5) is encapsulated in pick-up shell (1), for receiving pressure sensor (9) electric signal, amplifying electric signal, general
Amplified electric signal converses liquid level information locating for pressure sensor (9) and transmits information to NB-IOT mould by calculating
Group；
NB-IOT mould group is mounted on pick-up plate (5), for receiving the electric signal of pick-up plate (5) transmission, and data is wirelessly passed
It is defeated to arrive Cloud Server.
2. a kind of NB-IOT intelligent radio fluid level transmitter according to claim 1, it is characterised in that: further include antenna
(7), the antenna (7) connect with NB-IOT mould group, for enhancing transmitting signal.
3. a kind of NB-IOT intelligent radio fluid level transmitter according to claim 2, it is characterised in that: further include battery mould
Block (8), the battery module (8) are mounted in pick-up shell (1), and battery module (8) connects pick-up plate (5) and NB-IOT mould
Group.
4. a kind of NB-IOT intelligent radio fluid level transmitter according to claim 3, it is characterised in that: the pick-up shell
(1) integrally casting shaping.
5. according to a kind of NB-IOT intelligent radio fluid level transmitter as claimed in claim 4, it is characterised in that: the pick-up shell
(1) include the watchcase main body (11) of cylinder tubbiness, erecting bed (12) at watchcase main body (11) upper end center is set and is set
Set the fixed part (13) at watchcase main body (11) lower end center；The gauge outfit (2) is mounted on watchcase main body (11) front end, rear cover
(3) it is mounted on watchcase main body (11) rear end, structural member (4) is mounted on fixed part (13) lower end；The erecting bed (12) laterally sets
It sets, the upper end of erecting bed (12) is rectangle plane, and the lower end of erecting bed (12) is arc-shaped and tangent simultaneously with watchcase main body (11)
Fit closely with watchcase main body (11) surface, be provided with antenna (7) at least one end of erecting bed (12), the antenna (7) with
Pick-up plate (5) electrical connection；The watchcase main body (11) be internally provided with former and later two independently divided preceding installation cavities (111) and
Installation cavity (112) afterwards, the pick-up plate (5) are mounted in preceding installation cavity (111), and pick-up plate (5) is electrically connected with gauge outfit (2)
It connects, the battery module (8) is mounted in rear installation cavity (112), and battery module (8) is electrically connected with pick-up plate (5)；It is described solid
Determining portion (13) includes in the connecting pin (131) of vertical cylinder shape and the fixing end (132) in horizontally U-shaped, the fixed part
(13) it opens up and sets vertical internal screw thread, structural member (4) is threaded on fixed part (13).
6. according to a kind of NB-IOT intelligent radio fluid level transmitter described in claim 5, it is characterised in that: the pick-up plate (5)
On be provided with for receiving pressure sensor (9) data and doing respective treated data processing module to data, at the data
Reason module is connect with NB-IOT mould group serial ports.
7. according to a kind of NB-IOT intelligent radio fluid level transmitter as claimed in claim 6, it is characterised in that: the NB-IOT mould group
Using the remote BC-28 mould group of shifting.
8. according to a kind of NB-IOT intelligent radio fluid level transmitter as claimed in claim 6, it is characterised in that: the structural member (4)
Upper end is cylindrical and outside is equipped with external screw thread, and the threaded upper ends of structural member (4) are connected on fixed part (13)；The structural member
(4) lower end is in up big and down small round table-like.
9. according to a kind of NB-IOT intelligent radio fluid level transmitter according to any one of claims 8, it is characterised in that: probe (a) packet
Water guide head (a1), pedestal (a2), pipe cap (a3) and wire crimping cap (a4) are included, pressure sensor setting is in pedestal (a2)；It is described
Water guide head (a1), pedestal (a2), pipe cap (a3) are cylindrical, and water guide head (a1) threaded upper ends are connected to the lower end pedestal (a2),
The lower end of water guide head (a1) offers the water-guiding hole (a11) being in communication with the outside, and shown pedestal (a2) threaded upper ends are connected to pipe cap
(a3) lower end, the wire crimping cap (a4) is in down big up small round table-like for fettering water-proof wire (b) in protruding into vertically, wire crimping cap
(a4) lower end is connect with pipe cap (a3) threaded upper ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910611728.0A CN110398274A (en) | 2019-07-08 | 2019-07-08 | A kind of NB-IOT intelligent radio fluid level transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910611728.0A CN110398274A (en) | 2019-07-08 | 2019-07-08 | A kind of NB-IOT intelligent radio fluid level transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110398274A true CN110398274A (en) | 2019-11-01 |
Family
ID=68322881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910611728.0A Pending CN110398274A (en) | 2019-07-08 | 2019-07-08 | A kind of NB-IOT intelligent radio fluid level transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110398274A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022241909A1 (en) * | 2021-05-18 | 2022-11-24 | 永高股份有限公司 | Embedded-type pipeline data collection apparatus |
-
2019
- 2019-07-08 CN CN201910611728.0A patent/CN110398274A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022241909A1 (en) * | 2021-05-18 | 2022-11-24 | 永高股份有限公司 | Embedded-type pipeline data collection apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20150276454A1 (en) | Consumption meter housing with feed through for external communication equipment | |
| CN110398274A (en) | A kind of NB-IOT intelligent radio fluid level transmitter | |
| CN110398314A (en) | A kind of NB-IOT intelligent radio pressure transmitter | |
| CN203445282U (en) | Active antenna waterproof radio frequency connector for ships | |
| CN210533453U (en) | Wireless remote water meter | |
| CN203275021U (en) | Digital pressure transmitter | |
| CN210426692U (en) | NB-IOT intelligent wireless liquid level transmitter | |
| CN210375302U (en) | Differential pressure type accumulator liquid level meter | |
| CN103868565A (en) | Wireless water level sensor | |
| CN208316231U (en) | A kind of Internet of Things intelligent meter meter reading Special wall-mounted waterproof junction box | |
| CN203772348U (en) | Wireless remote-transmitting fuel gas meter shell | |
| EP3598596A1 (en) | Temperature sensor for a cable head for a ring main unit | |
| CN110410666A (en) | A kind of Internet of things system based on NB-IOT intelligent radio transmitter | |
| CN210426873U (en) | NB-IOT intelligent wireless pressure transmitter | |
| CN210426778U (en) | NB-IOT intelligent wireless temperature transmitter | |
| CN201853846U (en) | Sealed type multi-purpose radio frequency coaxial conversion connector | |
| CN201656374U (en) | Standard junction box for wheel detector of railway vehicle | |
| CN210426782U (en) | Watchcase main part of intelligence changer | |
| CN210426874U (en) | Rubber stopper cap of intelligence changer | |
| CN210426876U (en) | Structural part of intelligent transmitter | |
| CN203772355U (en) | Wireless water level sensor | |
| CN203607597U (en) | Device for conversion connection of double-core wave detector with four-core socket and two-core socket | |
| CN203519073U (en) | Electromagnetic water meter | |
| CN206789485U (en) | A kind of pressure switch | |
| CN210533454U (en) | Wireless remote water meter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |