CN112113633A - Online liquid level monitoring automatic alarm method, system and equipment - Google Patents
Online liquid level monitoring automatic alarm method, system and equipment Download PDFInfo
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Abstract
The invention discloses an on-line liquid level monitoring automatic alarm method, a system and equipment, wherein the method comprises the following steps: s1: reading a plurality of preset acquisition cycles, communication cycles, liquid level parameters and alarm return difference parameters thereof; s2: acquiring a collection liquid level D, comparing the collection liquid level D with the liquid level parameters, and automatically adjusting a collection period and a communication period by using a comparison result based on a preset period adjustment strategy; s3: obtaining a liquid level movement trend and a fluctuation range of the collected liquid level D according to the obtained multiple continuous collected liquid levels D; comparing the fluctuation range of the collected liquid level D with each alarm return difference parameter to obtain the liquid level state of the fluctuation range of the current collected liquid level D; and sending alarm information according to the liquid level state and the adjusted communication period based on a preset liquid level alarm strategy. The invention can not only send alarm information in time and reduce manual guard, but also effectively save the electric quantity of the battery and improve the service cycle of the monitoring equipment.
Description
Technical Field
The invention relates to a liquid level detection technology, in particular to an on-line liquid level monitoring automatic alarm method, system and equipment.
Background
The liquid level monitoring equipment is mainly used for monitoring the liquid level of scenes such as rivers, lakes, reservoirs, municipal drainage pipe networks, inspection wells and the like, and particularly, the liquid level monitoring equipment installed in the inspection wells cannot provide power through commercial power or solar energy due to the special installation environment and can only supply power through batteries.
For saving battery power, guarantee that equipment can long-term operation, consequently, liquid level monitoring's mode of operation mostly follows real-time collection monitoring to change periodic work into, and fixed cycle is predetermine to promptly, once every other collection cycle liquid level, once every other communication cycle sends the liquid level.
In traditional online monitoring, the collected liquid level is sent to a server database through wireless communication modes such as 2G/3G/4G, NBIoT and the like, the liquid level is compared and analyzed at the database end, the state of liquid level alarm information is judged, and an instruction is sent to modify the working period of equipment. However, since the on-line monitoring equipment generally adopts a battery for power supply, a fixed communication period exists for sending the liquid level, the equipment cannot automatically adjust the working period according to the liquid level in time, and cannot process liquid level alarm information in time.
And then when the liquid level changes, when the alarm information state that makes the production changes, the equipment still need wait for fixed communication cycle and just can with alarm information upload the system database end to need the manual work to watch on and operate the change equipment duty cycle at the database, just can issue the duty cycle of revising to equipment when the equipment carries out the communication next time, consequently, it is great to handle alarm information time delay, leads to other accidents such as overflow to take place or waste battery power continuously. In addition, when the liquid level fluctuates up and down in the set alarm liquid level, the online monitoring equipment frequently uploads alarm information again.
Disclosure of Invention
The embodiment of the application provides an online liquid level monitoring automatic alarm method, system and equipment, and solves the problems that in the prior art, when liquid level is detected, the continuous battery electric quantity is wasted, the liquid level change state information is not sent timely, and the alarm information state is frequently changed, so that the working period is automatically adjusted according to the collected liquid level information, the battery electric quantity waste is reduced, and the alarm information state is sent timely.
In a first aspect of the present invention, an embodiment of the present application provides an online liquid level monitoring automatic alarm method, where the method includes:
s1: reading a plurality of preset acquisition cycles, communication cycles, liquid level parameters and alarm return difference parameters thereof;
s2: acquiring a collection liquid level D, and comparing the collection liquid level D with the liquid level parameter to acquire a comparison result; based on a preset period adjustment strategy, automatically adjusting an acquisition period and a communication period by using a comparison result;
s3: obtaining a liquid level movement trend and a fluctuation range of the collected liquid level D according to the obtained multiple continuous collected liquid levels D; comparing the fluctuation range of the collected liquid level D with each alarm return difference parameter to obtain a comparison result and obtain the liquid level state of the fluctuation range of the current collected liquid level D; and sending alarm information according to the liquid level state and the adjusted communication period based on a preset liquid level alarm strategy.
Further, the liquid level parameters comprise an alert liquid level line L1 and a safe liquid level line L2; and dividing the liquid level state into a safe liquid level state, a warning liquid level state and a dangerous liquid level state from bottom to top by utilizing the warning liquid level line L1 and the safe liquid level line L2.
Further, the acquisition periods comprise a safe liquid level acquisition period TC1, a warning liquid level acquisition period TC2 and a dangerous liquid level acquisition period TC 3; the communication period comprises a safe liquid level communication period TS1, a warning liquid level communication period TS2 and a dangerous liquid level communication period TS 3;
the safety liquid level communication period TS1, the warning liquid level communication period TS2, the dangerous liquid level communication period TS3, the safety liquid level acquisition period TC1, the warning liquid level acquisition period TC2 and the dangerous liquid level acquisition period TC3 are provided. Further, the step S2 includes:
acquiring a collection liquid level D, comparing the collection liquid level D with the warning liquid level line L1 and the safety liquid level line L2 respectively to obtain a liquid level state, adjusting a collection period and a communication period according to the liquid level state, wherein,
when D is less than L2, judging that the liquid level enters a safe liquid level state, changing the liquid level acquisition period into a safe liquid level acquisition period TC1, and changing the data communication period into an alert liquid level communication period TS 1;
when L2< D < L1, the liquid level is judged to enter a warning liquid level state, the liquid level acquisition period is changed into a warning liquid level acquisition period TC2, and the data communication period is changed into a warning liquid level communication period TS 2;
when D > L1, judge that the liquid level enters dangerous liquid level state, change the liquid level collection cycle into dangerous liquid level collection cycle TC3, change the data communication cycle into dangerous liquid level communication cycle TS 3.
Further, the alarm return difference parameter of the warning liquid level line L1 includes: a danger return difference upper limit value L1a and a danger return difference lower limit value L1 b; the alarm return difference parameter of the safety liquid level line L2 comprises: an upper limit value L2a of the warning back difference and a lower limit value L2b of the warning back difference; wherein, L2b < L2< L2a < L1b < L1< L1a < L0, and L0 is an overflow liquid level line.
Further, the step S3 includes:
s31: acquiring a plurality of continuous acquisition liquid levels D according to the adjusted acquisition period;
s32: obtaining a liquid level movement trend and a fluctuation range of the collected liquid level D according to a plurality of continuous collected liquid levels D;
s33: comparing and analyzing the fluctuation range of the collected liquid level D with each alarm return difference parameter to obtain the liquid level state of the fluctuation range of the current collected liquid level D;
when the liquid level is in an ascending trend, comparing and analyzing the fluctuation range of the collected liquid level D with a dangerous return difference lower limit value L1b and a warning return difference lower limit value L2b respectively;
when the fluctuation range of the collected liquid level D is larger than L2b, judging that the liquid level keeps an alert liquid level state, and marking L2 b-L1 as an alert liquid level interval; when the fluctuation range of the collected liquid level D is less than L2b, the liquid level is judged to be in the state of relieving the alarm liquid level, and when the collected liquid level D is more than L2, the liquid level is judged to be in the state of the alarm liquid level again;
when the fluctuation range of the collected liquid level D is larger than L1b, judging that the liquid level keeps a dangerous liquid level state, and marking L1 b-L0 as a dangerous liquid level interval; when the fluctuation range of the acquisition liquid level D is less than L1b, the liquid level is judged to enter a warning liquid level state, and when the acquisition liquid level D is greater than L1, the liquid level is judged to enter a dangerous liquid level state again;
when the liquid level is in a descending trend, comparing and analyzing the fluctuation range of the collected liquid level D with a dangerous return difference upper limit value L1a and a warning return difference upper limit value L2a respectively;
when the fluctuation range of the collected liquid level D is less than L1a, judging that the liquid level keeps an alert liquid level state, and marking L1 a-L0 as a dangerous liquid level interval; when the fluctuation range of the collected liquid level D is larger than L1a, judging that the liquid level enters the dangerous liquid level state again;
when the fluctuation range of the collected liquid level D is less than L2a, the liquid level is judged to be kept in a safe liquid level state, and L2 a-L1 are marked as an alarm liquid level interval; and when the fluctuation range of the collected liquid level D is larger than L2a, the liquid level is judged to enter the warning liquid level state again.
In a second aspect of the present invention, an embodiment of the present application provides an online liquid level monitoring automatic alarm system, which employs the online liquid level monitoring automatic alarm method according to the first aspect, and the system includes a monitoring end, a cloud server, and a plurality of liquid level alarm devices; the cloud server is in signal connection with the monitoring end and the liquid level alarm device respectively;
the monitoring terminal is configured to access the cloud server to set or modify a plurality of acquisition cycles, communication cycles, liquid level parameters and alarm return difference parameters of each liquid level alarm device, and monitor the current liquid level state of each liquid level alarm device and sent alarm information;
the cloud server is configured to receive a plurality of acquisition cycles, communication cycles, liquid level parameters and alarm return difference parameters of the liquid level alarm devices and transmit the liquid level parameters to the liquid level alarm devices; receiving the liquid level state and alarm information of each liquid level alarm device;
the liquid level alarm equipment is configured to collect a liquid level D, execute a period adjustment strategy to adjust the collection period and the communication period according to a plurality of preset collection periods, communication periods, liquid level parameters and alarm return difference parameters thereof, execute a liquid level alarm strategy to adjust alarm information, and send the alarm information to the cloud server according to the communication period.
Further, the liquid level alarm equipment is in signal connection with the cloud server by adopting a 3G/4G wireless communication technology.
In a third aspect of the present invention, an embodiment of the present application provides an online liquid level monitoring automatic alarm device, which employs the online liquid level monitoring automatic alarm method according to the first aspect, and includes: the device comprises a shell, a liquid level sensor and a main control board;
the housing configured as a waterproof sealing structure;
the liquid level sensor is configured to be arranged on the outer side of the shell, is electrically connected with the main control board by adopting a waterproof cable, is arranged at the bottom of a target liquid to be detected when monitoring is carried out, and is used for collecting an electric signal generated by the pressure at the bottom of the liquid according to a collection period and transmitting the electric signal to the main control board; wherein the liquid bottom pressure varies with the liquid level;
the main control board is configured to be arranged in the shell and used for receiving the electric signals collected by the liquid level sensor, after the electric signals are converted into a collected liquid level D, the main control board executes a period adjustment strategy to adjust a collection period and a communication period, executes a liquid level alarm strategy, and sends alarm information according to the communication period.
Further, the main control board at least comprises a liquid level acquisition processor arranged on the main control board, and the liquid level acquisition processor is configured to be electrically connected with the liquid level sensor, so as to receive an electric signal and convert the electric signal into an acquisition liquid level D; and receiving a collection instruction, and controlling the collection work of the liquid level sensor according to the collection instruction.
Furthermore, the main control board also comprises a CPU and a parameter memory which are arranged on the main control board; the CPU is respectively and electrically connected with the parameter memory and the liquid level acquisition processor;
the parameter memory is configured to store a plurality of acquisition cycles, communication cycles, liquid level parameters and alarm return difference parameters thereof;
the CPU is used for reading a collection liquid level D, a collection period, a communication period, a liquid level parameter and an alarm return difference parameter thereof; when the liquid level acquisition device is configured to execute a period adjustment strategy, comparing and analyzing the current acquisition liquid level D and the liquid level parameters to obtain a comparison result; based on a preset period adjustment strategy, automatically adjusting an acquisition period and a communication period by using a comparison result so as to send an acquisition instruction to the liquid level signal processor according to the adjusted acquisition period; when the liquid level alarm strategy is configured to be executed, the liquid level motion trend and the fluctuation range of the collected liquid level D are obtained according to the obtained multiple continuous collected liquid levels D; comparing the fluctuation range of the collected liquid level D with each alarm return difference parameter to obtain a comparison result and obtain the liquid level state of the fluctuation range of the current collected liquid level D; and sending alarm information according to the liquid level state and the adjusted communication period based on a preset liquid level alarm strategy.
Furthermore, the main control board also comprises a wireless communicator arranged on the main control board, and the wireless communicator is configured to receive alarm information and transmit the alarm information by using a 3G/4G wireless communication technology.
Further, the wireless communication device further comprises a 3G/4G antenna which is configured to be electrically connected with the wireless communication device by adopting a waterproof cable so as to increase the communication gain of the wireless communication device.
Further, still install data memory on the main control board, configure into with CPU electricity is connected for the storage includes liquid level data including gathering liquid level D, acquisition time, acquisition cycle, liquid level state, liquid level motion trend, communication cycle and alarm information.
Further, the liquid level sensor also comprises a power supply device which is configured to be electrically connected with the main control board and used for supplying power to the main control board and the liquid level sensor.
Furthermore, a power manager is further installed on the main control board, and is configured to be electrically connected with the CPU, the power supply device, the liquid level sensor and the parameter memory, so as to control the power supply device to supply power according to an acquisition cycle and a communication cycle.
The online liquid level monitoring automatic alarm method, system and equipment provided in the embodiment of the application at least have the following technical effects:
1. because the alarm return difference parameter is adopted, the alarm information state is judged not according to a liquid level value any more but a return difference interval, the alarm return difference parameter is remotely set, and can be remotely modified according to the actual condition, so that the frequent change of the alarm information state caused by the fact that the liquid level fluctuates up and down near the safe liquid level line or the warning liquid level line is avoided.
2. Because the safe liquid level communication period TS1, the warning liquid level communication period TS2, the dangerous liquid level communication period TS3, the safe liquid level acquisition period TC1, the warning liquid level acquisition period TC2 and the dangerous liquid level acquisition period TC3 are set at the same time. The larger the value of the collected liquid level D is, the more dangerous the collection is, the smaller the collection period and the communication period are, and the more timely the liquid level information can be sent to the server database. According to the liquid level information of gathering, the automatic adjustment duty cycle in time sends the alarm information state, reduces artifical guard, can effectively save battery power moreover, improves monitoring facilities life cycle. .
Drawings
FIG. 1 is a flow chart of an on-line liquid level monitoring automatic alarm method according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a liquid level line and a liquid level state interval according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of an alarm return difference according to an embodiment of the present application;
fig. 4 is a schematic diagram illustrating updating of an acquisition cycle and a communication cycle in an embodiment of the present application;
FIG. 5 is a schematic view of a liquid level state interval when the liquid level rises according to an embodiment of the present application;
FIG. 6 is a schematic view illustrating a liquid level state interval when the liquid level decreases in the first embodiment of the present application;
FIG. 7 is a network structure diagram of an online liquid level monitoring automatic alarm system in the second embodiment of the present application;
FIG. 8 is a block diagram of an online liquid level monitoring automatic alarm device according to a third embodiment of the present application;
FIG. 9 is a diagram of an on-line liquid level monitoring automatic alarm device in the third embodiment of the present application;
fig. 10 is a block diagram of a main control board in the third embodiment of the present application.
Detailed Description
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
Example one
Referring to fig. 1, an embodiment of the present application provides an online liquid level monitoring automatic alarm method, which is used for performing liquid level monitoring and alarm on scenes such as rivers, lakes, reservoirs, municipal drainage pipe networks, inspection wells, and the like. The method comprises the following steps.
Step S1: reading a plurality of preset acquisition cycles, communication cycles, liquid level parameters and alarm return difference parameters thereof.
Referring to fig. 2, the liquid level parameters in the step S1 include a warning liquid level line L1 and a safety liquid level line L2; wherein, L2< L1< L0. The liquid level state is divided into a safe liquid level state, a warning liquid level state and a dangerous liquid level state from bottom to top by using a warning liquid level line L1 and a safe liquid level line L2.
Referring to fig. 3, the alarm return difference parameter of the alarm liquid level line L1 includes: a danger return difference upper limit value L1a and a danger return difference lower limit value L1 b; the alarm return difference parameters of the safety liquid level line L2 include: an upper limit value L2a of the warning back difference and a lower limit value L2b of the warning back difference; wherein, L2b < L2< L2a < L1b < L1< L1a < L0, and L0 is an overflow liquid level line.
Presetting a plurality of parameter values, so that L2b < L2< L2a < L1b < L1< L1a < L0, for example, the warning liquid level line L1 is 2.0 meters, and the safety liquid level line L2 is 1.0 meters; the upper limit value of the risk return difference L1a is 2.1 m, the lower limit value of the risk return difference L1b is 1.9 m, the upper limit value of the warning return difference L2a is 1.1 m, and the lower limit value of the warning return difference L2b is 0.9 m. The acquisition period comprises a safe liquid level acquisition period TC1, a warning liquid level acquisition period TC2 and a dangerous liquid level acquisition period TC 3; the communication period comprises a safe liquid level communication period TS1, a warning liquid level communication period TS2 and a dangerous liquid level communication period TS 3; the safety liquid level communication period TS1, the warning liquid level communication period TS2, the dangerous liquid level communication period TS3, the safety liquid level acquisition period TC1, the warning liquid level acquisition period TC2 and the dangerous liquid level acquisition period TC3 are provided. For example, the preset safe liquid level collection period TC1 is 10 minutes, the safe liquid level communication period TS1 is 60 minutes, the warning liquid level collection period TC2 is 5 minutes, the warning liquid level communication period TS2 is 30 minutes, the dangerous liquid level collection period TC3 is 2 minutes, and the dangerous liquid level communication period TS3 is 2 minutes. Namely, the requirement of period parameter setting is met, the safe liquid level communication period is 60 minutes, the warning liquid level communication period is 30 minutes, the dangerous liquid level communication period is 2 minutes, the safe liquid level acquisition period is 10 minutes, the warning liquid level acquisition period is 5 minutes, and the dangerous liquid level acquisition period is 2 minutes.
Step S2: acquiring a collection liquid level D, and comparing the collection liquid level D with the liquid level parameters to acquire a comparison result; and based on a preset period adjustment strategy, automatically adjusting the acquisition period and the communication period by using the comparison result.
A plurality of acquisition periods and communication periods are preset, and the acquisition periods and the communication periods are adjusted through different liquid level states, so that the problems that when one period is fixed all the time, communication is frequently acquired during a safe liquid level state, electric energy is wasted, and alarm processing cannot be performed timely during a dangerous liquid level state are solved.
This step S2 further includes:
referring to fig. 4, acquiring a collection liquid level D, comparing the collection liquid level D with a warning liquid level line L1 and a safety liquid level line L2 respectively to obtain a liquid level state, adjusting a collection period and a communication period according to the liquid level state, and comparing and analyzing the collection liquid level D with the warning liquid level line L1 and the safety liquid level line L2 as follows:
and when D is less than L2, judging that the liquid level enters a safe liquid level state, changing the liquid level acquisition period into a safe liquid level acquisition period TC1, and changing the data communication period into an alert liquid level communication period TS 1.
And when L2< D < L1, determining that the liquid level enters an alert liquid level state, changing the liquid level acquisition period into an alert liquid level acquisition period TC2, and changing the data communication period into an alert liquid level communication period TS 2.
When D > L1, judge that the liquid level enters dangerous liquid level state, change the liquid level collection cycle into dangerous liquid level collection cycle TC3, change the data communication cycle into dangerous liquid level communication cycle TS 3.
When the collection level D is L0, overflow or flooding will occur when the level D exceeds the overflow level line.
Step S3: obtaining a liquid level movement trend and a fluctuation range of the collected liquid level D according to the obtained multiple continuous collected liquid levels D; comparing the fluctuation range of the collected liquid level D with each alarm return difference parameter to obtain a comparison result, and obtaining the liquid level state of the fluctuation range of the current collected liquid level D; and sending alarm information according to the liquid level state and the adjusted communication period based on a preset liquid level alarm strategy.
In the step, an alarm sending condition is set, and alarm information is sent according to a communication period.
The present step S3 may include the following steps.
S31: acquiring a plurality of continuous acquisition liquid levels D according to the adjusted acquisition period;
s32: obtaining a liquid level movement trend and a fluctuation range of the collected liquid level D according to a plurality of continuous collected liquid levels D;
s33: and comparing and analyzing the fluctuation range of the collected liquid level D with each alarm return difference parameter to obtain the liquid level state of the fluctuation range of the current collected liquid level D.
Referring to fig. 5, when the liquid level is in an ascending trend, comparing and analyzing the fluctuation range of the collected liquid level D with a lower danger return difference limit value L1b and a lower warning return difference limit value L2b respectively; in the step, when the liquid level is in the rising trend, the communication period is shortened and the communication frequency is increased when the liquid level rises according to the liquid level data.
When D < L2, the liquid level is judged to enter the warning liquid level state, the liquid level acquisition period is changed into a warning liquid level acquisition period TC2, and the data communication period is changed into a warning liquid level communication period TS 2.
When the fluctuation range of the collected liquid level D is larger than L2b, the liquid level is judged to be kept in an alarm liquid level state, and L2 b-L1 are marked as an alarm liquid level interval; when the fluctuation range of the collected liquid level D is less than L2b, the liquid level is judged to be in the disarmed liquid level state, and when the collected liquid level D is greater than L2, the liquid level is judged to be in the armed liquid level state again, so that the frequent change of the alarm information state is effectively avoided.
When D is larger than L1, the liquid level is judged to enter a dangerous liquid level state, the liquid level acquisition period is changed into a dangerous liquid level acquisition period TC3, and the data communication period is changed into a dangerous liquid level communication period TS 3.
When the fluctuation range of the collected liquid level D is larger than L1b, the liquid level is judged to be in a dangerous liquid level state, and L1 b-L0 are marked as a dangerous liquid level interval; when the fluctuation range of the collected liquid level D is less than L1b, the liquid level is judged to enter a warning liquid level state, and when the collected liquid level D is greater than L1, the liquid level is judged to enter a dangerous liquid level state again, so that the frequent change of the alarm information state is effectively avoided.
Referring to fig. 6, when the liquid level is in a downward trend, comparing and analyzing the fluctuation range of the collected liquid level D with the upper limit value L1a of the dangerous return difference and the upper limit value L2a of the warning return difference respectively;
in this step, the liquid level is in a descending trend, the communication period is prolonged, and the communication frequency is reduced, so that the battery consumption is reduced. When D < L1, the liquid level is judged to enter the warning liquid level state, the liquid level acquisition period is changed into a warning liquid level acquisition period TC2, and the data communication period is changed into a warning liquid level communication period TS 2.
When the fluctuation range of the collected liquid level D is less than L1a, the liquid level is judged to be kept in an alert liquid level state, and L1 a-L0 are marked as a dangerous liquid level interval; when the fluctuation range of the collected liquid level D is greater than L1a, the liquid level is judged to enter the dangerous liquid level state again, and the frequent change of the alarm information state is effectively avoided;
when the fluctuation range of the collected liquid level D is less than L2a, the liquid level is judged to be kept in a safe liquid level state, and L2 a-L1 are marked as an alarm liquid level interval; and when the fluctuation range of the collected liquid level D is greater than L2a, the liquid level is judged to enter the warning liquid level state again, and the frequent change of the alarm information state is effectively avoided.
In this embodiment, by avoiding frequently changing the alarm information state, the alarm sending frequency is optimized, the manual guard is reduced, the battery power can be effectively saved, and the service cycle of the monitoring equipment is prolonged.
For example, preset parameters are read, the warning level L1 is 2.0 meters, and the safety level L2 is 1.0 meters; the upper limit value of the risk return difference L1a is 2.1 meters, the lower limit value of the risk return difference L1b is 1.9 meters, the upper limit value of the warning return difference L2a is 1.1 meters, and the lower limit value of the warning return difference L2b is 0.9 meters; the safe liquid level acquisition period TC1 is 10 minutes, the safe liquid level communication period TS1 is 60 minutes, the warning liquid level acquisition period TC2 is 5 minutes, the warning liquid level communication period TS2 is 30 minutes, the dangerous liquid level acquisition period TC3 is 2 minutes, and the dangerous liquid level communication period TS3 is 2 minutes
When the liquid level is in an ascending trend, if the collected liquid level D is 0.8 m and D is less than L2, the system is in a safe liquid level state, the system modifies the liquid level collection period TC1 to 10 minutes and the liquid level communication period TS1 to 60 minutes; if the collected liquid level D is 1.2 meters, and the L1a < D < L2a is in a warning liquid level state at the moment, automatically adjusting a collection period and a communication period, wherein the liquid level collection period TC1 is 5 minutes, the liquid level communication period TS1 is 30 minutes, and the liquid level collection frequency and the communication frequency are 2 times of those in a safe liquid level state at the moment; if gather liquid level D2.5 meters, D < L1 be in dangerous liquid level state this moment, then automatically regulated collection cycle and communication cycle, liquid level collection cycle TC 12 minutes, liquid level communication cycle TS 12 minutes, 5 times when the liquid level collection frequency is safe liquid level state this moment, 30 times when the communication frequency is safe liquid level state can in time effectively send alarm information.
When the liquid level descends, if the collected liquid level D is 2.4 meters and D < L1 is in a dangerous liquid level state at the moment, automatically adjusting a collection period and a communication period, wherein the liquid level collection period TC1 is 2 minutes, and the liquid level communication period TS1 is 2 minutes; if the acquisition liquid level D is 1.6 meters, and the L1a < D < L2a is in a warning liquid level state at the moment, automatically adjusting an acquisition period and a communication period, wherein the liquid level acquisition period TC1 is 5 minutes, and the liquid level communication period TS1 is 30 minutes, and the liquid level acquisition period and the communication period are both larger than those in a dangerous liquid level state; if the collected liquid level D is 0.6 m, D is less than L2, and the liquid level is in a safe liquid level state, automatically adjusting a collection period and a communication period, wherein the liquid level collection period TC1 is 10 minutes, and the liquid level communication period TS1 is 60 minutes; at the moment, 1/5 when the liquid level acquisition frequency is in a dangerous liquid level state, 1/30 when the communication frequency is in a dangerous liquid level state, and the battery power is saved.
Example two
Referring to fig. 7, an embodiment of the present application provides an online liquid level monitoring automatic alarm system, which employs an online liquid level monitoring automatic alarm method as in the first embodiment, and includes a monitoring terminal 300, a cloud server 200, and a plurality of liquid level alarm devices 100; the cloud server 200 is in signal connection with the monitoring terminal 300 and the liquid level alarm device 100 respectively.
The monitoring terminal 300 is configured to access the cloud server to set or modify a plurality of acquisition cycles, communication cycles, liquid level parameters and alarm return difference parameters of each liquid level alarm device, and monitor the current liquid level state of each liquid level alarm device and send alarm information. The monitoring terminal 300 in this embodiment may be a mobile phone terminal, a PC, a tablet, a notebook, or other terminal devices.
The cloud server 200 is configured to receive a plurality of acquisition cycles, communication cycles, liquid level parameters and alarm return difference parameters of each liquid level alarm device and transmit the liquid level parameters to each liquid level alarm device; and receiving the liquid level state and alarm information of each liquid level alarm device.
The liquid level alarm device 100 is configured to collect a liquid level D, execute a period adjustment strategy to adjust the collection period and the communication period according to a plurality of preset collection periods, communication periods, liquid level parameters and alarm return difference parameters thereof, execute a liquid level alarm strategy to adjust alarm information, and send the alarm information to the cloud server according to the communication period.
Further, the liquid level alarm device 100 is configured to receive a plurality of preset acquisition cycles, communication cycles, liquid level parameters and alarm return difference parameters thereof; acquiring a collection liquid level D, comparing the collection liquid level D with the liquid level parameters, and automatically adjusting a collection period and a communication period by using a comparison result based on a preset period adjustment strategy; obtaining a liquid level movement trend and a fluctuation range of the collected liquid level D according to the obtained multiple continuous collected liquid levels D; comparing the fluctuation range of the collected liquid level D with each alarm return difference parameter to obtain the liquid level state of the fluctuation range of the current collected liquid level D; and sending alarm information to the cloud server 200 according to the liquid level state and the adjusted communication period based on a preset liquid level alarm strategy.
The liquid level alarm device 100 in this embodiment is in signal connection with the cloud server 200 by using a 3G/4G wireless communication technology.
EXAMPLE III
The embodiment of the application provides an online liquid level monitoring automatic alarm device, which adopts the online liquid level monitoring automatic alarm method in the first embodiment, and the working process of the online liquid level monitoring automatic alarm device comprises the following steps:
reading various parameters; when the acquisition period is reached, acquiring and storing the liquid level; then comparing the liquid level data with historical data, warning liquid level line parameters and dangerous liquid level line parameters, judging the liquid level state, the liquid level movement trend and alarm information, and modifying and storing parameters such as an acquisition period, a data communication period and the like in time; after the communication period is reached, reading the liquid level data, carrying out data communication, sending the liquid level data and alarm information through a wireless 3G/4G module, receiving and storing various remotely set parameters;
referring to fig. 8-10, comprising: a housing 130, a liquid level sensor 120, and a main control panel 110.
A housing 130 configured as a waterproof sealing structure. For the adaptation environment under water, casing 130 in this embodiment all adopts waterproof sealing design from the structure to the material, and based on this, this embodiment is not limited to what kind of structure or what kind of material of adoption, and it can to realize waterproof sealing. Further, casing 130 includes casing and lower casing, and on the casing was closed down to last casing lid, through closing the design, conveniently change the corresponding part in the casing, and be equipped with the installing support down on the casing, remove haulage equipment through the installing support.
The liquid level sensor 120 is configured to be arranged outside the shell 130, is electrically connected with the main control board by a waterproof cable, and is arranged at the bottom of the measured target liquid during monitoring, so as to collect an electric signal generated by the pressure at the bottom of the liquid according to a collection period and transmit the electric signal to the main control board; wherein the liquid bottom pressure changes with the change of the collection liquid level D. The liquid level sensor in this embodiment adopts a pressure sensor to when carrying out monitoring operation, liquid level sensor arranges the bottom of scenes such as surveyed rivers, lakes, reservoir, municipal drainage pipe network, inspection shaft in, and the pressure that liquid level sensor receives changes along with the change of liquid level, and based on this, analog-to-digital conversion acquires the pressure value earlier, again according to liquid level pressure formula P ═ ρ gh, converts the pressure value into and gathers liquid level D.
The main control board 110 is configured to be disposed in the housing 130, and configured to receive the electrical signal collected by the liquid level sensor, execute a period adjustment strategy to adjust a collection period and a communication period after converting the electrical signal into a collected liquid level D, execute a liquid level alarm strategy to adjust alarm information, and send the alarm information according to the communication period.
The main control board 110 at least comprises a liquid level acquisition processor 112 installed on the main control board 110, configured to be electrically connected with the liquid level sensor 120, for receiving the electrical signal and converting the electrical signal into an acquisition liquid level D; and receiving a collection instruction, and controlling the collection work of the liquid level sensor 120 according to the collection instruction. The main control board 110 in this embodiment is a PCB board, on which various processing components are mounted and electrically connected through a control circuit.
The main control board 110 in this embodiment further includes a CPU111 and a parameter memory 114 mounted on the main control board 110; the CPU111 is respectively electrically connected with the parameter memory 114 and the liquid level acquisition processor 112;
the parameter storage 114 is configured to store a plurality of acquisition cycles, communication cycles, liquid level parameters and alarm return difference parameters thereof. Further, the parameters in the parameter storage 114 need to be set or modified according to the monitoring targets. For example, EEPROM memory is employed.
The CPU111 is used for reading the acquisition liquid level D, the acquisition period, the communication period, the liquid level parameter and the alarm return difference parameter; when the liquid level acquisition device is configured to execute a period adjustment strategy, comparing and analyzing the current acquisition liquid level D and the liquid level parameters to obtain a comparison result; based on a preset period adjustment strategy, automatically adjusting an acquisition period and a communication period by using a comparison result so as to send an acquisition instruction to the liquid level signal processor according to the adjusted acquisition period; when the liquid level alarm strategy is configured to be executed, the liquid level motion trend and the fluctuation range of the collected liquid level D are obtained according to the obtained multiple continuous collected liquid levels D; comparing the fluctuation range of the collected liquid level D with each alarm return difference parameter to obtain a comparison result and obtain the liquid level state of the fluctuation range of the current collected liquid level D; and sending alarm information according to the liquid level state and the adjusted communication period based on a preset liquid level alarm strategy.
The main control board 110 of this embodiment is further provided with a timer RTC117, the RTC117 is in signal connection with the CPU111, and the acquisition period and the communication period are adjusted by the RTC 117.
The main control board 110 in this embodiment further includes a wireless communicator 113 installed on the main control board 110, and configured to receive the alarm information and transmit the alarm information by using a 3G/4G wireless communication technology. Further, a 3G/4G antenna 140 is included and is configured to be electrically connected to the wireless communicator 113 using a watertight cable for communication gain of the wireless communicator. The 3G/4G antenna 140 in this embodiment is configured to be disposed outside the housing 130, and the network signal instability in some application places is avoided by the communication gain of the 3G/4G antenna 140 to the wireless communicator. Of course, if the network signal in the application scene is strong, the wireless communicator 113 may be directly utilized to connect to the cloud server.
The main control board 110 in this embodiment is further provided with a data storage 115 configured to be electrically connected to the CPU111, and configured to store liquid level data including a collection liquid level D, a collection time, a collection period, a liquid level state, a liquid level movement trend, a communication period, and alarm information. Local data transfer may be accomplished via data storage 115. For example, the data storage 115 may employ DATAFLASH memory.
The liquid level sensor further comprises a power supply device 150 configured to be electrically connected with the main control board 110 for supplying power to the main control board 110 and the liquid level sensor 120. The power supply device 150 in this embodiment may be a dedicated battery disposed inside the housing 130. Further, the main control board 110 is further provided with a power manager 116 configured to be electrically connected to the CPU111, the power device 150, the liquid level sensor 120 and the parameter memory 114, so as to control the power device 150 to supply power according to the acquisition cycle and the communication cycle.
In addition, the main control board 110 in this embodiment is further provided with an automatic switch, which is electrically connected to the CPU111, and controls the liquid level sensor 120, the wireless communicator 113, and the power supply device 150 to be turned off when executing the liquid level alarm policy, where the automatic switch in this embodiment may be a relay switch.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (16)
1. An on-line liquid level monitoring automatic alarm method is characterized by comprising the following steps:
s1: reading a plurality of preset acquisition cycles, communication cycles, liquid level parameters and alarm return difference parameters thereof;
s2: acquiring a collection liquid level D, and comparing the collection liquid level D with the liquid level parameter to acquire a comparison result; based on a preset period adjustment strategy, automatically adjusting an acquisition period and a communication period by using a comparison result;
s3: obtaining a liquid level movement trend and a fluctuation range of the collected liquid level D according to the obtained multiple continuous collected liquid levels D; comparing the fluctuation range of the collected liquid level D with each alarm return difference parameter to obtain a comparison result and obtain the liquid level state of the fluctuation range of the current collected liquid level D; and sending alarm information according to the liquid level state and the adjusted communication period based on a preset liquid level alarm strategy.
2. The on-line liquid level monitoring automatic alarm method of claim 1, wherein the liquid level parameters include a warning level line L1, a safety level line L2; and dividing the liquid level state into a safe liquid level state, a warning liquid level state and a dangerous liquid level state from bottom to top by utilizing the warning liquid level line L1 and the safe liquid level line L2.
3. The on-line liquid level monitoring automatic alarm method as claimed in claim 2, wherein the collection periods include a safe liquid level collection period TC1, a warning liquid level collection period TC2, a dangerous liquid level collection period TC 3; the communication period comprises a safe liquid level communication period TS1, a warning liquid level communication period TS2 and a dangerous liquid level communication period TS 3;
the safety liquid level communication period TS1, the warning liquid level communication period TS2, the dangerous liquid level communication period TS3, the safety liquid level acquisition period TC1, the warning liquid level acquisition period TC2 and the dangerous liquid level acquisition period TC3 are provided.
4. The on-line liquid level monitoring automatic alarm method of claim 3, wherein the step S2 includes:
acquiring a collection liquid level D, comparing the collection liquid level D with the warning liquid level line L1 and the safety liquid level line L2 respectively to obtain a liquid level state, adjusting a collection period and a communication period according to the liquid level state, wherein,
when D is less than L2, judging that the liquid level enters a safe liquid level state, changing the liquid level acquisition period into a safe liquid level acquisition period TC1, and changing the data communication period into an alert liquid level communication period TS 1;
when L2< D < L1, the liquid level is judged to enter a warning liquid level state, the liquid level acquisition period is changed into a warning liquid level acquisition period TC2, and the data communication period is changed into a warning liquid level communication period TS 2;
when D > L1, judge that the liquid level enters dangerous liquid level state, change the liquid level collection cycle into dangerous liquid level collection cycle TC3, change the data communication cycle into dangerous liquid level communication cycle TS 3.
5. The on-line liquid level monitoring automatic alarm method of claim 2, wherein the alarm return difference parameter of the alarm level line L1 comprises: a danger return difference upper limit value L1a and a danger return difference lower limit value L1 b; the alarm return difference parameter of the safety liquid level line L2 comprises: an upper limit value L2a of the warning back difference and a lower limit value L2b of the warning back difference; wherein, L2b < L2< L2a < L1b < L1< L1a < L0, and L0 is an overflow liquid level line.
6. The on-line liquid level monitoring automatic alarm method of claim 5, wherein the step S3 includes:
s31: acquiring a plurality of continuous acquisition liquid levels D according to the adjusted acquisition period;
s32: obtaining a liquid level movement trend and a fluctuation range of the collected liquid level D according to a plurality of continuous collected liquid levels D;
s33: comparing and analyzing the fluctuation range of the collected liquid level D with each alarm return difference parameter to obtain the liquid level state of the fluctuation range of the current collected liquid level D;
when the liquid level is in an ascending trend, comparing and analyzing the fluctuation range of the collected liquid level D with a dangerous return difference lower limit value L1b and a warning return difference lower limit value L2b respectively;
when the fluctuation range of the collected liquid level D is larger than L2b, judging that the liquid level keeps an alert liquid level state, and marking L2 b-L1 as an alert liquid level interval; when the fluctuation range of the collected liquid level D is less than L2b, the liquid level is judged to be in the state of relieving the alarm liquid level, and when the collected liquid level D is more than L2, the liquid level is judged to be in the state of the alarm liquid level again;
when the fluctuation range of the collected liquid level D is larger than L1b, judging that the liquid level keeps a dangerous liquid level state, and marking L1 b-L0 as a dangerous liquid level interval; when the fluctuation range of the acquisition liquid level D is less than L1b, the liquid level is judged to enter a warning liquid level state, and when the acquisition liquid level D is greater than L1, the liquid level is judged to enter a dangerous liquid level state again;
when the liquid level is in a descending trend, comparing and analyzing the fluctuation range of the collected liquid level D with a dangerous return difference upper limit value L1a and a warning return difference upper limit value L2a respectively;
when the fluctuation range of the collected liquid level D is less than L1a, judging that the liquid level keeps an alert liquid level state, and marking L1 a-L0 as a dangerous liquid level interval; when the fluctuation range of the collected liquid level D is larger than L1a, judging that the liquid level enters the dangerous liquid level state again;
when the fluctuation range of the collected liquid level D is less than L2a, the liquid level is judged to be kept in a safe liquid level state, and L2 a-L1 are marked as an alarm liquid level interval; and when the fluctuation range of the collected liquid level D is larger than L2a, the liquid level is judged to enter the warning liquid level state again.
7. An online liquid level monitoring automatic alarm system is characterized in that the online liquid level monitoring automatic alarm method according to claims 1-6 is adopted, and the system comprises a monitoring end, a cloud server and a plurality of liquid level alarm devices; the cloud server is in signal connection with the monitoring end and the liquid level alarm device respectively;
the monitoring terminal is configured to access the cloud server to set or modify a plurality of acquisition cycles, communication cycles, liquid level parameters and alarm return difference parameters of each liquid level alarm device, and monitor the current liquid level state of each liquid level alarm device and sent alarm information;
the cloud server is configured to receive a plurality of acquisition cycles, communication cycles, liquid level parameters and alarm return difference parameters of the liquid level alarm devices and transmit the liquid level parameters to the liquid level alarm devices; receiving the liquid level state and alarm information of each liquid level alarm device;
the liquid level alarm equipment is configured to collect a liquid level D, execute a period adjustment strategy to adjust the collection period and the communication period according to a plurality of preset collection periods, communication periods, liquid level parameters and alarm return difference parameters thereof, execute a liquid level alarm strategy to adjust alarm information, and send the alarm information to the cloud server according to the communication period.
8. The online liquid level monitoring automatic alarm system of claim 6, wherein the liquid level alarm device is in signal connection with the cloud server using 3G/4G wireless communication technology.
9. An on-line liquid level monitoring automatic alarm device, which adopts the on-line liquid level monitoring automatic alarm method according to any one of claims 1 to 6, and is characterized by comprising the following steps: the device comprises a shell, a liquid level sensor and a main control board;
the housing configured as a waterproof sealing structure;
the liquid level sensor is configured to be arranged on the outer side of the shell, is electrically connected with the main control board by adopting a waterproof cable, is arranged at the bottom of a target liquid to be detected when monitoring is carried out, and is used for collecting an electric signal generated by the pressure at the bottom of the liquid according to a collection period and transmitting the electric signal to the main control board; wherein the liquid bottom pressure varies with the liquid level;
the main control board is configured to be arranged in the shell and used for receiving the electric signals collected by the liquid level sensor, after the electric signals are converted into a collected liquid level D, the main control board executes a period adjustment strategy to adjust a collection period and a communication period, executes a liquid level alarm strategy to adjust alarm information, and sends the alarm information according to the communication period.
10. The on-line liquid level monitoring automatic alarm device of claim 9, wherein the main control board comprises at least a liquid level collecting processor installed on the main control board, configured to be electrically connected with the liquid level sensor, for receiving an electrical signal and converting the electrical signal into a collected liquid level D; and receiving a collection instruction, and controlling the collection work of the liquid level sensor according to the collection instruction.
11. The on-line liquid level monitoring automatic alarm device of claim 10, wherein the main control board further comprises a CPU, a parameter memory installed on the main control board; the CPU is respectively and electrically connected with the parameter memory and the liquid level acquisition processor;
the parameter memory is configured to store a plurality of acquisition cycles, communication cycles, liquid level parameters and alarm return difference parameters thereof;
the CPU is used for reading a collection liquid level D, a collection period, a communication period, a liquid level parameter and an alarm return difference parameter thereof; when the liquid level acquisition device is configured to execute a period adjustment strategy, comparing and analyzing the current acquisition liquid level D and the liquid level parameters to obtain a comparison result; based on a preset period adjustment strategy, automatically adjusting an acquisition period and a communication period by using a comparison result so as to send an acquisition instruction to the liquid level signal processor according to the adjusted acquisition period; when the liquid level alarm strategy is configured to be executed, the liquid level motion trend and the fluctuation range of the collected liquid level D are obtained according to the obtained multiple continuous collected liquid levels D; comparing the fluctuation range of the collected liquid level D with each alarm return difference parameter to obtain a comparison result and obtain the liquid level state of the fluctuation range of the current collected liquid level D; and sending alarm information according to the liquid level state and the adjusted communication period based on a preset liquid level alarm strategy.
12. The online liquid level monitoring automatic alarm device of claim 11, wherein the main control board further comprises a wireless communicator installed on the main control board and configured to receive alarm information and transmit the alarm information by 3G/4G wireless communication technology.
13. The on-line liquid level monitoring autoalarm device of claim 12, further comprising a 3G/4G antenna configured to electrically connect with the wireless communicator using a watertight cable for communication gain of the wireless communicator.
14. The on-line liquid level monitoring automatic alarm device of claim 11, wherein the main control board is further installed with a data storage device configured to be electrically connected with the CPU for storing liquid level data including collected liquid level D, collection time, collection cycle, liquid level state, liquid level movement trend, communication cycle and alarm information.
15. The online liquid level monitoring autoalarm of claim 11, further comprising a power supply device configured to electrically connect with the main control board for powering the main control board and the liquid level sensor.
16. The on-line liquid level monitoring automatic alarm device of claim 15, wherein a power manager is further installed on the main control board, and configured to be electrically connected to the CPU, the power device, the liquid level sensor and the parameter memory, so as to control the power device to supply power according to an acquisition cycle and a communication cycle.
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