CN210864060U - Wireless water immersion sensing node - Google Patents
Wireless water immersion sensing node Download PDFInfo
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- CN210864060U CN210864060U CN201921566052.XU CN201921566052U CN210864060U CN 210864060 U CN210864060 U CN 210864060U CN 201921566052 U CN201921566052 U CN 201921566052U CN 210864060 U CN210864060 U CN 210864060U
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Abstract
The utility model discloses a wireless water logging sensing node, it includes: the wireless water immersion alarm comprises a wireless microcontroller, an antenna, a water immersion signal acquisition circuit, a power supply circuit, an alarm circuit and a reset circuit, wherein the power supply circuit is electrically connected with the wireless microcontroller, the water immersion signal acquisition circuit, the alarm circuit and the reset circuit, and the wireless microcontroller is electrically connected with the antenna, the water immersion signal acquisition circuit, the alarm circuit and the reset circuit; the utility model has the advantages of small size, low power consumption, easy maintenance and convenient installation.
Description
Technical Field
The utility model relates to a wireless sensor network based on internet of things especially relates to wireless water logging sensing node.
Background
The existing water sensor is based on the principle of liquid conduction, uses an electrode to detect whether water exists, is a modern instrument for detecting whether a certain place has a water leakage condition and giving an alarm, and is widely applied to places such as communication rooms, warehouses, libraries, basements, museums, factory buildings and the like. The conventional water immersion sensing apparatus has the following disadvantages: the equipment is large in size, and the detection point is separated from the equipment main body; the functions are complex, the requirements on the use environment are high, and the use is difficult; an external power supply circuit is required; when the waterproof design is required, no external operation interface is required, and only unreliable software reset can be adopted when the equipment is maintained.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a small in size, low-power consumption, easy maintenance, simple to operate's wireless water logging sensing node.
In order to solve the problem provided above, the utility model discloses a technical scheme be: constructing a wireless water immersion sensing node comprising: the wireless water logging alarm device comprises a wireless microcontroller, a water logging signal acquisition circuit, a power supply circuit, an alarm circuit and a reset circuit, wherein the power supply circuit is electrically connected with the wireless microcontroller, the water logging signal acquisition circuit, the alarm circuit and the reset circuit, and the wireless microcontroller is electrically connected with the water logging signal acquisition circuit, the alarm circuit and the reset circuit.
Furthermore, the water immersion signal acquisition circuit comprises a first electrode, a second electrode, a third electrode, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a first triode and a second triode; the first electrode is connected with the base electrode of the first triode, the second electrode and the third electrode are grounded, the first resistor is bridged between the base electrode and the emitting electrode of the first triode, the collecting electrode of the first triode is grounded through the second resistor, the emitting electrode of the first triode is connected with the power supply, the base electrode of the second triode is connected with the collecting electrode of the first triode through the third resistor, the collecting electrode of the second triode is connected with the power supply through the fifth resistor, the emitting electrode of the second triode is grounded, the fourth resistor is bridged between the base electrode and the emitting electrode of the second triode, and the collecting electrode of the second triode is connected with the wireless microcontroller.
Optionally, the power supply circuit comprises a dry cell battery.
Optionally, the power supply circuit comprises a lithium ion battery.
Further, the reset circuit comprises a magnetic attraction switch, a sixth resistor and a first capacitor; the magnetic switch is provided with a first end and a second end, wherein the first end is grounded, the second end is connected with the anode of the power supply through a sixth resistor, a first capacitor is bridged between the first end and the second end, and the second end is connected with the reset end of the wireless microcontroller.
Further, the wireless microcontroller comprises a CC1310 wireless microcontroller.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the utility model adopts the first, the second and the third electrodes of the water immersion signal acquisition circuit to acquire the water immersion signal, and the wireless microcontroller transmits the water immersion signal through the Internet of things, thus having the advantages of simple structure and low requirement on the use environment; because the CC1310 wireless microcontroller is adopted, the power consumption is low, a dry battery can be adopted for supplying power, an external power lead is not needed, and the installation is convenient; because the reset circuit adopts the magnetic switch, the reset circuit can be reset by attracting hardware with a magnet externally, and is more reliable.
Drawings
Fig. 1 is a circuit block diagram of a wireless water immersion sensing node of the present invention;
fig. 2 is a circuit schematic of the water flood signal acquisition circuit of fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following detailed description is given to the implementation of the present invention with reference to the specific embodiments:
fig. 1 is a circuit block diagram of the wireless water immersion sensing node of the present invention. As shown in fig. 1, the utility model discloses a wireless water logging sensing node includes: the wireless water logging alarm device comprises a wireless microcontroller, a water logging signal acquisition circuit, a power supply circuit, an alarm circuit and a reset circuit, wherein the power supply circuit is electrically connected with the wireless microcontroller, the water logging signal acquisition circuit, the alarm circuit and the reset circuit, and the wireless microcontroller is electrically connected with the water logging signal acquisition circuit, the alarm circuit and the reset circuit. The wireless microcontroller can use a wireless microcontroller such as CC1310, the CC1310 wireless microcontroller is a Sub-1GHz wireless microcontroller, has the advantages of ultra-low power consumption, high integration level and the like, and can be selectively matched with a networking protocol so as to realize the function of automatic networking connection.
Referring to fig. 2, the water immersion signal collecting circuit may include a first electrode M1, a second electrode M2, a third electrode M3, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a first transistor Q1, and a second transistor Q2; the first electrode M1 is connected to the base of the first transistor Q1, the second electrode M2 and the third electrode M3 are grounded, the first resistor R1 is bridged between the base and the emitter of the first transistor Q1, the collector of the first transistor Q1 is grounded through the second resistor R2, the emitter of the first transistor Q1 is connected to the power supply VDD (the positive electrode of the output terminal of the power supply circuit), the base of the second transistor Q2 is connected to the collector of the first transistor Q1 through the third resistor R3, the collector of the second transistor Q2 is connected to the power supply VDD through the fifth resistor R5, the emitter of the second transistor Q2 is grounded, the fourth resistor R4 is bridged between the base and the emitter of the second transistor Q2, and the collector of the second transistor Q2 is connected to the wireless microcontroller as the output terminal of the water logging signal. When the water submerges the first electrode and any one of the second and third electrodes at the same time, the collector of the second triode outputs a low level as a water submersion signal indicating the occurrence of a water submersion event. After the wireless microcontroller collects the water immersion signal, the wireless microcontroller can send a message indicating the water immersion event to the remote monitoring terminal through the network.
The power supply circuit may include a dry cell battery (not shown) or a lithium ion battery (not shown), and may also include a filter circuit. When the CC1310 wireless microcontroller is adopted, the sensing node can work for a long time by depending on a lithium ion battery, for example, when a 2000mA lithium ion battery is used, the sensing node can work for more than two years continuously, an external power lead is not needed, the installation is convenient, and the maintenance is simple.
The warning circuit may include a buzzer and/or an LED indicator. When water immersion occurs, the wireless microcontroller can output a control signal to the alarm circuit to enable the buzzer and the LED indicator lamp to send out alarm signals.
The reset circuit may include a magnetic attraction switch (not shown), a sixth resistor (not shown), and a first capacitor (not shown). The magnetic switch may include a first terminal and a second terminal, wherein the first terminal is grounded, the second terminal is connected to the positive terminal of the power supply through a sixth resistor, and the first capacitor is connected across the first terminal and the second terminal. The second end is used as a reset signal output end and is connected with the reset end of the wireless microcontroller. When the magnetic switch is attracted by the magnet, the magnetic switch is closed, and the second end generates a low level, so that the wireless microcontroller is reset.
The utility model has simple and small structure, and can concentrate the acquisition circuit into the main body of the device; the product has simple structure, outstanding water immersion measuring function, no other complex functions and low requirement on the use environment; the battery is adopted for power supply, an external power lead is not needed, the service life of the battery is long, and the maintenance is convenient; the device is under the condition that software resets, and inside has increased magnetism and has inhaled the switch, can externally with magnet actuation hardware reset signal, can make wireless microcontroller more reliable reset.
The above-mentioned embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (6)
1. A wireless water immersion sensing node, comprising: the wireless water logging alarm device comprises a wireless microcontroller, an antenna, a water logging signal acquisition circuit, a power supply circuit, an alarm circuit and a reset circuit, wherein the power supply circuit is electrically connected with the wireless microcontroller, the water logging signal acquisition circuit, the alarm circuit and the reset circuit, and the wireless microcontroller is electrically connected with the antenna, the water logging signal acquisition circuit, the alarm circuit and the reset circuit.
2. The wireless water immersion sensing node of claim 1 wherein the water immersion signal acquisition circuit comprises a first electrode, a second electrode, a third electrode, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a first triode, and a second triode; the first electrode is connected with the base electrode of the first triode, the second electrode and the third electrode are grounded, the first resistor is bridged between the base electrode and the emitting electrode of the first triode, the collecting electrode of the first triode is grounded through the second resistor, the emitting electrode of the first triode is connected with the power supply, the base electrode of the second triode is connected with the collecting electrode of the first triode through the third resistor, the collecting electrode of the second triode is connected with the power supply through the fifth resistor, the emitting electrode of the second triode is grounded, the fourth resistor is bridged between the base electrode and the emitting electrode of the second triode, and the collecting electrode of the second triode is connected with the wireless microcontroller.
3. The wireless water immersion sensing node of claim 1 wherein the power supply circuit includes a dry cell battery.
4. The wireless water immersion sensing node of claim 1 wherein the power supply circuit comprises a lithium ion battery.
5. The wireless water immersion sensing node of claim 1, wherein the reset circuit comprises a magnetic attraction switch, a sixth resistor and a first capacitor; the magnetic switch is provided with a first end and a second end, wherein the first end is grounded, the second end is connected with the anode of the power supply through a sixth resistor, a first capacitor is bridged between the first end and the second end, and the second end is connected with the reset end of the wireless microcontroller.
6. The wireless water immersion sensing node of any one of claims 1-5 wherein the wireless microcontroller is a CC1310 wireless microcontroller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921566052.XU CN210864060U (en) | 2019-09-20 | 2019-09-20 | Wireless water immersion sensing node |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921566052.XU CN210864060U (en) | 2019-09-20 | 2019-09-20 | Wireless water immersion sensing node |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210864060U true CN210864060U (en) | 2020-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921566052.XU Active CN210864060U (en) | 2019-09-20 | 2019-09-20 | Wireless water immersion sensing node |
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| CN (1) | CN210864060U (en) |
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2019
- 2019-09-20 CN CN201921566052.XU patent/CN210864060U/en active Active
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