CN216351280U - Take contact detection circuitry's water logging sensor - Google Patents
Take contact detection circuitry's water logging sensor Download PDFInfo
- Publication number
- CN216351280U CN216351280U CN202122336032.7U CN202122336032U CN216351280U CN 216351280 U CN216351280 U CN 216351280U CN 202122336032 U CN202122336032 U CN 202122336032U CN 216351280 U CN216351280 U CN 216351280U
- Authority
- CN
- China
- Prior art keywords
- control module
- water
- module
- detection
- electrodes
- 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.)
- Active
Links
Images
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model relates to a water logging sensor with a contact detection circuit, which comprises a detection module, a control module, a power supply and an RS485 bus, wherein two electrodes are arranged inside the detection module, the two electrodes are respectively and independently connected with the control module through signal lines, the two electrodes are placed in the field environment to be detected for water logging, and the control module is connected with the RS485 bus through an MODBUS protocol transmission communication line and transmits detection data information to external communication equipment. The contact type water immersion detection is based on the principle of liquid conduction, the change value of the conductivity of water after the water submerges a detection signal line is converted into standard voltage, and then a control part detects the change of the standard voltage to judge whether water immersion exists or not. The detection module is connected with the control module only through a signal line, so that the detection module is low in cost, low in operation power consumption, capable of being in direct contact with liquid, quick in response and high in working efficiency, and is suitable for detecting common liquid such as tap water in daily life places.
Description
Technical Field
The utility model relates to the technical field of sensors, in particular to a water sensor with a contact type detection circuit.
Background
The water logging sensor is widely applied to all places needing water proofing, such as data centers, communication machine rooms, power stations, warehouses, archives and the like. The existing non-contact water sensor is provided with a light sensor inside the sensor, and utilizes the refraction and reflection principles of light on different medium sections to detect.
The non-contact water sensor internally comprises a near infrared light emitting diode and a photosensitive receiver. The light emitted by the light emitting diodes is directed into a lens on top of the sensor. When the liquid immerses the lens of the photoelectric water level sensor, light is refracted into the liquid, so that the receiver cannot receive or can receive only a small amount of light. By sensing this change, the photoelectric water level sensor can activate an internal electrical switch in the receiver, thereby activating an external alarm or control circuit. If there is no liquid, the light emitted by the light emitting diode is reflected directly from the lens back to the receiver.
Due to the characteristic of separation of the non-contact water sensor and the detection liquid, the sensors are mostly applied to the scene of detecting corrosive liquid, the cost is high, and the operation power consumption is large. The water sensor with the contact detection circuit is more visual and reliable due to the fact that the use scene of the water sensor is a daily life place and most of detected common liquid such as tap water is used.
SUMMERY OF THE UTILITY MODEL
It is an object of the present invention to provide a water sensor with a contact detection circuit to solve the above-mentioned problems encountered in the background art.
In order to achieve the purpose, the technical scheme of the utility model is as follows:
the utility model provides a take contact detection circuitry's water logging sensor, includes detection module, control module, power supply and RS485 bus, detection module's inside is equipped with two electrodes, two the electrode respectively alone pass through the signal line with control module connects, two the electrode is placed in waiting to detect the site environment of water logging, control module passes through MODBUS agreement transmission communication line and RS485 bus connection, will detect data information transmission for external communications facilities, power supply passes through protection circuit and connects control module.
In the above scheme, the system further comprises a ferroelectric memory module, and the ferroelectric memory module is connected with the control module through an I2C protocol communication line.
In the scheme, the input end of the control module is connected with the key restarting module, and the output end of the control module is connected with the LED working state indicator lamp.
Compared with the prior art, the utility model has the beneficial effects that: the contact type water immersion detection is based on the principle of liquid conduction, the change value of the conductivity of water after the water submerges a detection signal line is converted into standard voltage, and then a control part detects the change of the standard voltage to judge whether water immersion exists or not. The detection module and the control module are connected by only adopting a signal wire, the cost is low, the detection module does not need to be supplied with power independently, the running power consumption of the whole sensor is low, the whole sensor can be in direct contact with liquid, the response is quick, and the working efficiency is high. Therefore, the water sensor is suitable for detecting common liquid such as tap water in daily life places.
Drawings
The disclosure of the present invention is illustrated with reference to the accompanying drawings. It is to be understood that the drawings are designed solely for the purposes of illustration and not as a definition of the limits of the utility model. In the drawings, like reference numerals are used to refer to like parts. Wherein:
fig. 1 is a schematic diagram of the working principle of the present invention.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described in detail with reference to the attached drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution to which the present invention relates.
According to the technical scheme of the utility model, a plurality of alternative structural modes and implementation modes can be provided by a person with ordinary skill in the art without changing the essential spirit of the utility model. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical aspects of the present invention, and should not be construed as all of the present invention or as limitations or limitations on the technical aspects of the present invention.
The technical solution of the present invention is further described in detail with reference to the accompanying drawings and examples.
As shown in figure 1, the water sensor with the contact detection circuit comprises a detection module, a control module, a power supply and an RS485 bus, wherein two electrodes are installed inside the detection module, the two electrodes are respectively and independently connected with the control module through signal lines, and the two electrodes are placed in a field environment to be detected for water immersion. The two electrodes are not divided into positive and negative electrodes, and two signal wires are adopted to be connected with the control module and used for obtaining power from the control module and sending detected signals to the control module.
The contact type water immersion detection is based on the principle of liquid conduction, the change value of the conductivity of water after the water submerges a detection signal line is converted into standard voltage, and then a control part detects the change of the standard voltage to judge whether water immersion exists or not.
The whole water sensor system consists of a detection module and a control module, and the two parts adopt a separated design and are connected by an electric signal line. The two electrodes are arranged at the bottom of the detection module, when no water exists, probes of the two electrodes are insulated by air, no current passes through the probes, no signal is sent to the control module, and the probes can be regarded as open circuits; when water passes through the electrodes, namely the probe is conducted in a water immersion state, the voltage changes due to the fact that the liquid conducts electricity, and the detection module outputs an electrifying signal with the voltage changes to the control module, so that an alarm signal is generated.
When the control module is implemented, the control module can adopt a single chip microcomputer chip with the model of STM32F030, and the power supply is connected with the control module through the protection circuit, so that the control module has a stable working state. The control module is connected with the RS485 bus through an MODBUS protocol transmission communication line and transmits the detection data information to external communication equipment.
As a preferable scheme, the water sensor further comprises a ferroelectric storage module, the ferroelectric storage module is connected with the control module through an I2C protocol communication line, and the ferroelectric storage module is used for storing the acquired detection data in time when the water sensor is suddenly powered off, so that the water sensor has the capability of fast writing and reading, and well-detected data is reserved.
In the above scheme, the input end of the control module is connected with the key restarting module, the water sensor can be started by one key through the key restarting module, and the output end of the control module is connected with the LED working state indicator lamp for displaying the working state.
Compared with other water sensors, the scheme has the following advantages:
the detection module and the control module are connected by signal wires, so that the cost is low, the installation is convenient, the structure is simple, and the maintenance is convenient; the liquid conduction principle is adopted, so that the working performance is reliable; the detection module does not need to be independently powered, and the operation power consumption of the whole sensor is low; the detection module can be in direct contact with liquid, and is quick in response and high in working efficiency. Therefore, the water sensor is suitable for detecting common liquid such as tap water in daily life places.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (3)
1. The utility model provides a take water sensor of contact detection circuit which characterized in that: including detection module, control module, power supply and RS485 bus, its characterized in that: the detection module is internally provided with two electrodes which are respectively and independently connected with the control module through signal lines, the two electrodes are placed in a field environment to be detected for water immersion, the control module is connected with an RS485 bus through an MODBUS protocol transmission communication line and transmits detection data information to external communication equipment, and the power supply is connected with the control module through a protection circuit.
2. The water sensor with a contact detection circuit of claim 1, wherein: the controller also comprises a ferroelectric memory module which is connected with the control module through an I2C protocol communication line.
3. The water sensor with a contact detection circuit of claim 1, wherein: the input end of the control module is connected with a key restarting module, and the output end of the control module is connected with an LED working state indicator lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122336032.7U CN216351280U (en) | 2021-09-26 | 2021-09-26 | Take contact detection circuitry's water logging sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122336032.7U CN216351280U (en) | 2021-09-26 | 2021-09-26 | Take contact detection circuitry's water logging sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216351280U true CN216351280U (en) | 2022-04-19 |
Family
ID=81172757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122336032.7U Active CN216351280U (en) | 2021-09-26 | 2021-09-26 | Take contact detection circuitry's water logging sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216351280U (en) |
-
2021
- 2021-09-26 CN CN202122336032.7U patent/CN216351280U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202886531U (en) | Overhead fault indicator | |
| CN203811816U (en) | Wireless water immersion sensor | |
| CN201421614Y (en) | Start-up device based on electrode induction fingerprint identification | |
| CN216351280U (en) | Take contact detection circuitry's water logging sensor | |
| CN111915860A (en) | Water sensor based on NB technology | |
| CN203519053U (en) | Hydrological telemetering terminal machine | |
| CN203658872U (en) | Swimming pool temperature and liquid level monitoring and alarm instrument | |
| CN217007658U (en) | Electric energy meter detection circuit | |
| CN107402053B (en) | Two-wire contact type electronic material level meter | |
| CN201233635Y (en) | Infrared detection device | |
| CN201421615Y (en) | Integrated start-up device based on capacitance induction fingerprint identification | |
| CN205581252U (en) | Power system fault indicator | |
| CN204297029U (en) | Water area monitoring device | |
| CN208607289U (en) | Proactive intelligence protector | |
| CN104568002B (en) | Environmental detection device | |
| CN204758847U (en) | Rainwater sensor circuit | |
| CN207730877U (en) | A kind of transient state recording type distribution line failure indicator | |
| CN207882382U (en) | A kind of power protector tripping detection device | |
| CN218297297U (en) | Be used for rail train battery liquid level detection device | |
| CN206862570U (en) | Current conversion station converter valve valve tower water-leakage detecting system | |
| CN215726230U (en) | Liquid level sensor with 2-wire system 4-20mA circuit | |
| CN201508208U (en) | Multifunctional alarm | |
| CN202093372U (en) | Embedded machine room monitor system | |
| CN206132128U (en) | District electricity distribution room environmental monitoring system based on cell -phone APP | |
| CN208985336U (en) | A kind of energy-saving well lid alarm convenient for storing and transporting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |