CN214893553U - High-level pool liquid level monitoring system - Google Patents
High-level pool liquid level monitoring system Download PDFInfo
- Publication number
- CN214893553U CN214893553U CN202120571934.6U CN202120571934U CN214893553U CN 214893553 U CN214893553 U CN 214893553U CN 202120571934 U CN202120571934 U CN 202120571934U CN 214893553 U CN214893553 U CN 214893553U
- Authority
- CN
- China
- Prior art keywords
- slave
- liquid level
- chip microcomputer
- level
- wireless transmission
- 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 - Fee Related
Links
Images
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model discloses a high-level pool liquid level monitoring system, which comprises a host, a plurality of slave machines and a monitoring center, wherein the host is respectively in two-way communication connection with each slave machine and the monitoring center; each slave machine comprises an ultrasonic liquid level meter, a current-to-voltage conversion module, a slave single chip microcomputer and a slave nRF wireless transmission module; the signal output end of the ultrasonic liquid level meter is connected with the input end of the current-to-voltage conversion module, the output end of the current-to-voltage conversion module is connected with the input end of the slave single chip microcomputer, and the slave single chip microcomputer is connected with the slave nRF wireless transmission module through a lead; the ultrasonic liquid level meter is used for measuring the liquid level in the high-level water tank, transmitting a measured current signal corresponding to the liquid level in the high-level water tank to the slave single-chip microcomputer for processing after being converted by the current-to-voltage conversion module, the slave single-chip microcomputer transmits a processed data signal to the host through the slave nRF wireless transmission module, and the host receives the data signal transmitted by the slave and transmits the received data signal to the monitoring center.
Description
Technical Field
The utility model relates to a liquid level monitoring technical field especially relates to a high-order pond liquid level monitoring system.
Background
The highway tunnel fire-fighting equipment is one of important basic guarantees of tunnel driving safety, and the integrity of the tunnel fire-fighting equipment is a prerequisite for whether effective suppression can be achieved in time after a fire disaster occurs.
In current tunnel fire control design scheme, for the liquid level in guarantee high-order pond is normal, all design has liquid level monitoring system, uses level sensor or float switch to carry out the online control of water level, outputs alarm signal when the water level is unusual, but this type of system has following not enoughly:
1. the liquid level sensor outputs 0-10V or 4-20mA analog quantity signals to represent the actual water level of the water pool; because the pond is located the mountain top or the waist, is far away from the water pump house, and is generally more than 500 meters, the sensor signal easily receives the interference, leads to data fluctuation.
2. The float switch outputs a switch quantity signal which represents that the position of the float ball has water or does not have water, but the water level is not visual, and the self state diagnosis and detection cannot be carried out, because the switch is bad and the water does not exist at the current position, the switch quantity signal needs other means for checking.
3. The existing liquid level monitoring system needs to be provided with long-distance signal cables and power supply cables, and due to the position characteristics of the water tank, the high-level water tank is positioned at the half-mountain waist, so that transmission cables can be damaged possibly due to changes of mountain geology along the line and daily work of local villagers, and personnel are required to regularly patrol.
SUMMERY OF THE UTILITY MODEL
The utility model aims at prior art's defect, provide a high-order pond liquid level monitoring system, can reduce monitoring facilities's the degree of difficulty of arranging, reduce construction and maintenance cost, the liquid level state in more real-time, accurate online monitoring high-order pond.
In order to realize the above purpose, the utility model adopts the following technical scheme:
a high-level pool liquid level monitoring system comprises a host, a plurality of slave machines and a monitoring center, wherein each slave machine in the plurality of slave machines is arranged above a high-level pool, and the host is arranged in a station room or a tunnel of a low-level pool; the host is in bidirectional communication connection with each slave and the monitoring center respectively; each slave machine comprises an ultrasonic liquid level meter, a current-to-voltage conversion module, a slave single chip microcomputer and a slave nRF wireless transmission module; the signal output end of the ultrasonic liquid level meter is connected with the input end of the current-to-voltage conversion module, the output end of the current-to-voltage conversion module is connected with the input end of the slave single chip microcomputer, and the slave single chip microcomputer is connected with the slave nRF wireless transmission module through a lead;
the ultrasonic liquid level meter is used for measuring the liquid level in the high-level water tank, transmitting a measured current signal corresponding to the liquid level in the high-level water tank to the slave single-chip microcomputer for processing after being converted by the current-to-voltage conversion module, transmitting a processed data signal to the host machine by the slave single-chip microcomputer through the slave nRF wireless transmission module, and receiving the data signal transmitted by the slave machine and transmitting the received data signal to the monitoring center by the host machine.
Further, the host comprises a display screen, a master control single chip microcomputer, a master control nRF wireless transmission module and an Ethernet port, wherein the master control single chip microcomputer is respectively connected with the display screen, the master control nRF wireless transmission module and the Ethernet port through leads, and the Ethernet port is connected with the monitoring center; the master control nRF wireless transmission module is connected with the slave nRF wireless transmission module.
Further, the master control further comprises a switch power supply, and the switch power supply is used for providing electric energy for the host.
Furthermore, the slave machine further comprises a temperature sensor connected with the slave machine singlechip, and the temperature sensor is arranged in the high-level water tank and used for monitoring the temperature of liquid in the high-level water tank.
Further, the system also comprises a storage battery which is connected with the slave; the storage battery is used for providing electric energy for the slave machines.
Further, the solar energy panel is connected with the accumulator; the solar cell panel is used for receiving illumination and transmitting the received illumination to the storage battery.
Furthermore, the models of the slave single-chip microcomputer and the master single-chip microcomputer are STM32F 103.
Furthermore, the slave nRF wireless transmission module and the master nRF wireless transmission module are both nRF24L01 in model.
Further, the current signal output by the ultrasonic liquid level meter 13 is 4-20 mA.
Furthermore, the current-to-voltage module converts 4-20mA to 0-3.3V.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses use wireless communication to carry out the liquid level monitoring in high-order pond, from the machine use the battery to supply power, do not need to use the commercial power supply specially, also need not special long distance arrange signal cable and supply cable to can reduce monitoring facilities arrange the degree of difficulty, reduce construction and maintenance cost. The ultrasonic liquid level meter is used for replacing a contact type liquid level sensor or a float switch used in the prior art, online water level monitoring is carried out, the problem that the contact type liquid level sensor is short in service life due to long-time soaking can be solved, the float switch can be prevented from outputting switching value signals only to display water or water, and water level measurement is more real-time and visual.
2. The utility model discloses a high-order pond liquid level monitoring system can monitor the temperature of liquid in the high-order pond, and supplementary high-speed operation unit takes measures to maintain high-order pond and fire control pipeline.
Drawings
FIG. 1 is a schematic diagram of a high-level pond liquid level monitoring system according to an embodiment;
FIG. 2 is a schematic view of a high-level pool liquid level monitoring system according to the first and second embodiments;
wherein: 11. a solar panel; 12. a storage battery; 13. an ultrasonic liquid level meter; 14. a current-to-voltage conversion module; 15. a slave singlechip; 16. a temperature sensor; 17. a slave nRF wireless transmission module; 21. a switching power supply; 22. a display screen; 23. a master control singlechip; 24. a master nRF wireless transmission module; 25. an Ethernet port; 3. and a monitoring center.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the utility model provides a pair of high-order pond liquid level monitoring system is the improvement of going on equipment and circuit structure, right the utility model relates to a how methods such as output signal, received signal, monitoring signal, transmission signal are not the utility model discloses the content that will protect, it all can be realized through current technique.
The first embodiment is as follows:
as shown in fig. 1-2, the high-level pool liquid level monitoring system provided in this embodiment includes a master, a plurality of slaves, and a monitoring center 3, where the master is respectively connected to each of the slaves and the monitoring center 3 in a bidirectional communication manner; each slave machine is arranged above the high-level water pool and used for monitoring the liquid level of the high-level water pool; the host is arranged in a station room or a tunnel of the low-level water pool and used for receiving data sent by the slave and transmitting the data to the monitoring center 3.
Each slave machine comprises an ultrasonic liquid level meter 13, a current-voltage conversion module 14, a slave single chip microcomputer 15 and a slave nRF wireless transmission module 17; the signal output end of the ultrasonic liquid level meter 13 is connected with the input end of a current-to-voltage conversion module 14, the output end of the current-to-voltage conversion module 14 is connected with the input end of a slave single chip microcomputer 15, and the slave single chip microcomputer 15 is connected with a slave nRF wireless transmission module 17 through a lead.
The ultrasonic liquid level meter 13 is installed above the high-level water tank, measures the liquid level in the high-level water tank in a non-contact manner, converts a measured current signal corresponding to the liquid level in the high-level water tank through the current-to-voltage conversion module 13 and transmits the converted current signal to the slave single-chip microcomputer 15 for processing, and the slave single-chip microcomputer 15 transmits a processed data signal to the host through the slave nRF wireless transmission module 17.
In the present embodiment, the ultrasonic level meter 13 uses a joint measurement brand ultrasonic level meter, which outputs a 4-20mA current signal; the current-to-voltage conversion module 14 converts 4-20mA to 0-3.3V and is used for converting a signal output by the ultrasonic liquid level meter 13 into a voltage signal which can be received by the singlechip 15; the slave singlechip 15 uses a singlechip with low power consumption, and the slave singlechip 15 in the implementation uses an STM32F103 singlechip, so that the slave singlechip 15 has strong processing function and low power consumption. Signals processed by the slave single-chip microcomputer 15 are sent out through the slave nRF wireless transmission module 17, the slave nRF wireless transmission module 17 uses an nRF24L01 model wireless transmission module, power consumption is low, and transmission distance is moderate.
In the embodiment, the solar cell panel 11 and the storage battery 12 are further included for supplying power to the slave, the solar cell panel 11 and the storage battery 12 are connected through a lead, and the storage battery 12 supplies power to the slave, so that the working durability of the slave is improved. It should be noted that the solar power supply technology is already mature, and the working principle, the working mode and the specific model of the solar cell panel 11 and the storage battery 12 are not described in detail herein.
The host comprises a switching power supply 21, a display screen 22, a master control singlechip 23, a master control nRF wireless transmission module 24 and an Ethernet port 25; the switch power supply 21 is used for providing electric energy for the host, and the input end of the switch power supply 21 is connected with 220v commercial power; the display screen 22, the master control nRF wireless transmission module 24 and the Ethernet port 25 are respectively connected with the master control singlechip 23 through leads; the Ethernet port 25 is connected with the monitoring center 3; the master nRF wireless transmission module 24 is connected to the slave nRF wireless transmission module 17.
The master machine receives the data information transmitted by the slave machine through the master nRF wireless transmission module 24, the received data information is processed in the master singlechip microcomputer 23, and the processed data information is transmitted to the display screen 22, and the display screen 22 is used for displaying the transmitted data information. A network cable can be plugged into the ethernet port 25 for exchanging data with the devices in the monitoring center 3. The master nRF wireless transmission module 24 in this embodiment also uses an nRF24L01 model wireless transmission module, and the master control single chip microcomputer 23 also uses an STM32F103 model single chip microcomputer.
Each part in the slave machine is low in power consumption, and wireless signal transmission is performed, so that the slave machine can be powered by a battery without specially using commercial power for power supply or special long-distance arrangement of signal cables and power supply cables, the arrangement difficulty of monitoring equipment can be reduced, and the construction and maintenance cost is reduced. This embodiment uses ultrasonic wave level gauge 13 to replace contact level sensor or the float switch that uses among the prior art, carries out the online monitoring of water level, can avoid contact level sensor to soak for a long time and lead to the short problem of life, can avoid the float switch to only output switching value signal display to have water or anhydrous for the water level measurement is real-time more, directly perceived.
Example two
The difference between the high-level pool liquid level monitoring system provided by the embodiment and the embodiment I is that:
as shown in FIG. 2, the slave of the present invention further comprises a temperature sensor 16, wherein the temperature sensor 16 is disposed in the high-level water tank for monitoring the temperature of the liquid in the high-level water tank. In chilly winter, especially north, can freeze in the high-order pond in many areas for fire control pipeline blocks up, has great fire control safety risk, through the monitoring to temperature in the high-order pond, can assist high-speed operation unit to take measures and maintain high-order pond and fire control pipeline.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (10)
1. A high-level pool liquid level monitoring system is characterized by comprising a host, a plurality of slave machines and a monitoring center, wherein each slave machine in the plurality of slave machines is arranged above a high-level pool, and the host is arranged in a station room or a tunnel of a low-level pool; the host is in bidirectional communication connection with each slave and the monitoring center respectively; each slave machine comprises an ultrasonic liquid level meter, a current-to-voltage conversion module, a slave single chip microcomputer and a slave nRF wireless transmission module; the signal output end of the ultrasonic liquid level meter is connected with the input end of the current-to-voltage conversion module, the output end of the current-to-voltage conversion module is connected with the input end of the slave single chip microcomputer, and the slave single chip microcomputer is connected with the slave nRF wireless transmission module through a lead;
the ultrasonic liquid level meter is used for measuring the liquid level in the high-level water tank, transmitting a measured current signal corresponding to the liquid level in the high-level water tank to the slave single-chip microcomputer for processing after being converted by the current-to-voltage conversion module, transmitting a processed data signal to the host machine by the slave single-chip microcomputer through the slave nRF wireless transmission module, and receiving the data signal transmitted by the slave machine and transmitting the received data signal to the monitoring center by the host machine.
2. The high-level pool liquid level monitoring system according to claim 1, wherein the host comprises a display screen, a main control single chip microcomputer, a main control nRF wireless transmission module and an ethernet port, the main control single chip microcomputer is respectively connected with the display screen, the main control nRF wireless transmission module and the ethernet port through wires, and the ethernet port is connected with a monitoring center; the master control nRF wireless transmission module is connected with the slave nRF wireless transmission module.
3. The high-level pool liquid level monitoring system of claim 2, wherein the master control further comprises a switching power supply for providing power to the host.
4. The high-level pool liquid level monitoring system according to claim 1, wherein the slave further comprises a temperature sensor connected with the slave single chip microcomputer, and the temperature sensor is arranged in the high-level pool and used for monitoring the temperature of liquid in the high-level pool.
5. The high-level pool liquid level monitoring system of claim 1, further comprising a battery connected to the slave; the storage battery is used for providing electric energy for the slave machines.
6. The high-level pool liquid level monitoring system of claim 5, further comprising a solar panel connected to the battery; the solar cell panel is used for receiving illumination and transmitting the received illumination to the storage battery.
7. The high-level pool liquid level monitoring system of claim 2, wherein the slave single chip microcomputer and the master single chip microcomputer are STM32F103 in type.
8. The high-level pond liquid level monitoring system according to claim 2, wherein the slave nRF wireless transmission module and the master nRF wireless transmission module are both nRF24L 01.
9. The high-level pool liquid level monitoring system according to claim 1, wherein the current signal output by the ultrasonic liquid level meter (13) is 4-20 mA.
10. The high-level pool liquid level monitoring system of claim 1, wherein the current to voltage conversion module uses 4-20mA to convert 0-3.3V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120571934.6U CN214893553U (en) | 2021-03-19 | 2021-03-19 | High-level pool liquid level monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120571934.6U CN214893553U (en) | 2021-03-19 | 2021-03-19 | High-level pool liquid level monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214893553U true CN214893553U (en) | 2021-11-26 |
Family
ID=79037518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120571934.6U Expired - Fee Related CN214893553U (en) | 2021-03-19 | 2021-03-19 | High-level pool liquid level monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214893553U (en) |
-
2021
- 2021-03-19 CN CN202120571934.6U patent/CN214893553U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104210513B (en) | Train is close to distant early warning method and system thereof | |
| CN202795632U (en) | Two-wire electric fire monitoring system | |
| CN211905566U (en) | Fault positioning system for power cable abnormity monitoring | |
| CN214893553U (en) | High-level pool liquid level monitoring system | |
| CN106771044A (en) | Aquiculture water quality monitoring device based on wireless data sending and microprocessor | |
| CN209606815U (en) | Parabola antenna driving unit power supply health control module is continuously tracked in a kind of GNSS | |
| CN104467164A (en) | Dual-power-supply input data acquisition terminal | |
| CN201174167Y (en) | Low-power consumption remote data acquiring terminal | |
| CN204858734U (en) | Novel intelligence integration power supply monitoring system | |
| CN106121728A (en) | A kind of coal mine safety monitoring system based on the transmission of Ethernet platform | |
| CN206016860U (en) | A kind of coal mine safety monitoring system transmitted based on Ethernet platform | |
| CN217425980U (en) | Intelligent control system of pump station | |
| CN203232290U (en) | GPRS wireless remote measurement and control terminal | |
| CN202393866U (en) | Hydropower station 330kV high voltage cable temperature and insulating state intelligent monitoring device | |
| CN206224207U (en) | A kind of coal seam Intelligent safety monitor of telecommunication | |
| CN205210161U (en) | Optical fiber temperature fault indicator | |
| CN209821642U (en) | Bridge health monitoring system based on RS485 bus | |
| CN205317245U (en) | Monitoring system is mixed to long distance water delivery tunnel safety | |
| CN211206689U (en) | Cable partial discharge on-line monitoring device | |
| CN211885099U (en) | System for monitoring states of superfine dry powder devices of comprehensive pipe rack in real time and managing position information | |
| CN204271740U (en) | A kind of data collection station of duplicate supply input | |
| CN210268808U (en) | Wireless liquid level meter | |
| CN202393862U (en) | Fault indicator and terminal thereof for power system | |
| CN205844795U (en) | A kind of intelligence oil gas regulation and control running gear | |
| CN209878914U (en) | Passive short circuit grounding fault indicator with temperature measuring function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211126 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |