CN112433488A - Equipment safety management system - Google Patents
Equipment safety management system Download PDFInfo
- Publication number
- CN112433488A CN112433488A CN202011253171.7A CN202011253171A CN112433488A CN 112433488 A CN112433488 A CN 112433488A CN 202011253171 A CN202011253171 A CN 202011253171A CN 112433488 A CN112433488 A CN 112433488A
- Authority
- CN
- China
- Prior art keywords
- equipment
- early warning
- maintenance
- personnel
- state data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012423 maintenance Methods 0.000 claims abstract description 76
- 238000001514 detection method Methods 0.000 claims abstract description 28
- 238000006073 displacement reaction Methods 0.000 claims abstract description 27
- 238000004891 communication Methods 0.000 claims abstract description 22
- 238000012544 monitoring process Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 10
- 230000002159 abnormal effect Effects 0.000 claims description 9
- 238000012937 correction Methods 0.000 claims description 3
- 238000012795 verification Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Alarm Systems (AREA)
Abstract
The invention discloses a system for equipment safety management, which is used for solving the problems that the existing equipment is troublesome to monitor and maintain and cannot reasonably inform corresponding maintenance personnel to maintain, and comprises an MCU (microprogrammed control unit), a relay output circuit, an LED (light-emitting diode) control circuit, an external input detection module and a tilt-open detection module; the invention can monitor the power state of external input through the external input detection module, adds a level sensor and a displacement sensor, can monitor whether the equipment is inclined or moved, has a relay output circuit outside, is used for outputting a driving alarm outside under the condition of equipment failure and danger, and is connected with a remote server through a wireless communication module to carry out remote data report when the equipment is not networked; the analysis early warning module is used for analyzing the equipment state data and reasonably selecting corresponding maintainers to perform early warning maintenance, so that the maintainers can be conveniently and timely informed to perform maintenance management on equipment abnormity.
Description
Technical Field
The invention relates to the technical field of equipment safety management, in particular to a system for equipment safety management.
Background
In the existing self-service equipment operation areas such as banks, large business offices and various business outlets, in order to protect the normal work of equipment and the safety of personal and property, video monitoring systems and alarm systems are arranged in the areas and are used for monitoring the operation and emergency situations of the equipment. The self-service equipment also has protection means such as machine self-checking and fault handling on a software level, and some equipment peripherals are even added with some alarms for equipment alarm. However, these methods are only means for searching problems in advance and in the future, so that the safety and reliability of the equipment during operation cannot be guaranteed, and the state cannot be obtained and effectively processed in time. The maintenance costs and the loss of manpower and material resources of the machine itself are also particularly great. If the equipment is placed in a remote area without network signals, the signal acquisition delay is too large; the existing equipment is troublesome to monitor and maintain and cannot reasonably inform corresponding maintenance personnel to maintain.
Disclosure of Invention
The invention aims to provide a system for equipment safety management, which aims to solve the problems that the existing equipment is troublesome to monitor and maintain and the corresponding maintenance personnel cannot be reasonably notified to maintain.
The purpose of the invention can be realized by the following technical scheme: a system for equipment safety management comprises an MCU, a relay output circuit, an LED control circuit, an external input detection module and a tilt door opening detection module;
the output ends of the external input detection module and the tilt door opening detection module are electrically connected with the input end of the MCU, and the output end of the MCU is respectively connected with the input ends of the relay output circuit and the LED control circuit; the external input detection module is used for monitoring externally input power state data; the tilt door opening detection module is used for monitoring equipment state data of the equipment, wherein the equipment state data comprises an inclination angle, displacement and a door opening angle; the relay output circuit is used for outputting an alarm signal and driving an alarm to give an alarm; the LED control circuit is used for outputting and prompting the running state data of the equipment.
Preferably, the tilt door opening detection module comprises a horizontal sensor, a displacement sensor and an angle sensor; the horizontal sensor is used for monitoring the inclination angle of the equipment; the displacement sensor is used for monitoring the displacement of the equipment; the angle sensor is used for monitoring the door opening angle of the equipment.
Preferably, the system further comprises a wireless communication module; the MCU is in communication connection with the remote server through the wireless communication module; the wireless communication module is used for the MCU to upload the equipment state data, the running state data and the power supply state data of the equipment to the remote server.
Preferably, the system also comprises a flash storage module; the flash storage module is used for storing equipment state data, running state data and power supply state data and is in communication connection with the upper computer through a serial port.
Preferably, the system also comprises an analysis early warning module; the analysis early warning module is used for analyzing and early warning the equipment state data, and comprises the following specific steps:
the method comprises the following steps: marking the inclination angle, the displacement and the door opening angle in the equipment state data as K1, K2 and K3 respectively;
step two: normalizing the inclination angle, the displacement and the door opening angle, and taking the values of the inclination angle, the displacement and the door opening angle, and obtaining an early warning value of the equipment by using a formula KF (KF) -K1 × b1+ K2 × b2+ K3 × b3, wherein b1, b2 and b3 are all preset weight coefficients;
step three: when the early warning value is larger than the set threshold value, generating an early warning instruction, marking the equipment as abnormal equipment, sending the early warning instruction and the equipment state data to a mobile phone terminal of a selected maintainer, and marking the moment as a sending moment, wherein the specific sending steps are as follows:
s31: sending a position acquisition instruction to mobile phone terminals of all maintenance personnel, and when the maintenance personnel send the current real-time position to an analysis early warning module within a preset time range, marking the maintenance personnel as primary selection early warning personnel by the analysis early warning module; calculating the distance difference between the current real-time position of the primarily selected early warning personnel and the position of the abnormal equipment to obtain the personnel distance, and marking the personnel distance as G1;
s32: acquiring personnel information of the primary early warning personnel, calculating the time difference between the enrollment time of the primary early warning personnel and the current time of the system to acquire the enrollment duration of the primary early warning personnel and marking the enrollment duration as R1; marking the total maintenance times and the age of the primary-selected early warning personnel as R2 and R3 respectively;
s33: normalizing the working time, total maintenance times and age of the pre-selected early warning personnel, taking the numerical values of the working time, total maintenance times and age, and utilizing a formula
Acquiring a warning maintenance value FS of the primarily selected early warning personnel, wherein d1, d2, d3, d4 and d5 are all preset proportional coefficients, mu is a correction factor, and the value is 0.9454; r5 is the time value of the early warning personnel for initial selection;
s34: and marking the initially selected early warning personnel with the maximum alarm maintenance value as selected maintenance personnel.
Preferably, the system further comprises a maintenance authentication module, wherein the maintenance authentication module is used for selecting maintenance personnel to perform authentication through a mobile phone terminal, and the specific process is as follows: the method comprises the steps that a selected maintainer sends a current real-time position to a maintenance authentication module through a mobile phone terminal, the maintenance authentication module verifies the number and the current real-time position of the selected maintainer and the position of early warning equipment, and after verification is successful, the time is marked as maintenance starting time, and meanwhile, the total maintenance times of the selected maintainer are increased once; marking the maintenance starting time as T1 and the sending time as T2; calculating the time difference between the maintenance starting time and the sending time to obtain a maintenance interval duration and marking the maintenance interval duration as T3; when the maintenance interval duration is less than a set interval threshold T4, performing a single TX value, wherein TX is (T4-T3) x d 6; summing all the individual values for the selected maintenance person results in a timely value R5 for the selected maintenance person.
Compared with the prior art, the invention has the beneficial effects that:
1. the external input detection module can monitor the power state of external input, a level sensor and a displacement sensor are added, whether the equipment is inclined or moved can be monitored, a relay output circuit is arranged outside and used for outputting a driving alarm to the outside under the conditions of equipment failure and danger, meanwhile, an LED control circuit outputs various operation states of the equipment, the abnormal conditions of the equipment can be recorded in flash of the equipment, serial port communication is provided for an upper computer to read, and the equipment is connected with a remote server through a wireless communication module to carry out remote data reporting when the equipment is not networked;
2. the analysis early warning module is used for analyzing and early warning the equipment state data, normalizing the inclination angle, the displacement and the door opening angle in the equipment state data and taking the values of the inclination angle, the displacement and the door opening angle, the early warning value of the equipment is obtained by using a formula, when the early warning value is larger than a set threshold value, an early warning instruction is generated, the early warning instruction and the equipment state data are sent to a mobile phone terminal of a selected maintainer, the equipment state data are analyzed through the analysis early warning module, the corresponding maintainer is reasonably selected to perform early warning maintenance, and the maintainer is conveniently and timely informed to perform maintenance management on abnormal equipment.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic block diagram of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a system for equipment safety management includes an MCU, a relay output circuit, an LED control circuit, an external input detection module, a tilt-open detection module, a wireless communication module, a flash memory module, an analysis and early warning module, and a maintenance and authentication module;
the output ends of the external input detection module and the tilt door opening detection module are electrically connected with the input end of the MCU, and the output end of the MCU is respectively connected with the input ends of the relay output circuit and the LED control circuit; the external input detection module is used for monitoring externally input power state data; the system comprises a tilt door opening detection module, a tilt door opening detection module and a control module, wherein the tilt door opening detection module is used for monitoring equipment state data of equipment, and the equipment state data comprises an inclination angle, displacement and a door opening angle; the relay output circuit is used for outputting an alarm signal and driving an alarm to give an alarm; the LED control circuit is used for outputting and prompting the running state data of the equipment.
The tilt door opening detection module comprises a horizontal sensor, a displacement sensor and an angle sensor; the horizontal sensor is used for monitoring the inclination angle of the equipment; the displacement sensor is used for monitoring the displacement of the equipment; the angle sensor is used for monitoring the door opening angle of the equipment.
The MCU is in communication connection with the remote server through the wireless communication module; the wireless communication module is used for the MCU to upload the equipment state data, the running state data and the power supply state data of the equipment to the remote server.
The flash storage module is used for storing equipment state data, running state data and power supply state data and is in communication connection with the upper computer through a serial port.
The analysis early warning module is used for analyzing and early warning the equipment state data, and comprises the following specific steps:
the method comprises the following steps: marking the inclination angle, the displacement and the door opening angle in the equipment state data as K1, K2 and K3 respectively;
step two: normalizing the inclination angle, the displacement and the door opening angle, and taking the values of the inclination angle, the displacement and the door opening angle, and obtaining an early warning value of the equipment by using a formula KF (KF) -K1 × b1+ K2 × b2+ K3 × b3, wherein b1, b2 and b3 are all preset weight coefficients;
step three: when the early warning value is larger than the set threshold value, generating an early warning instruction, marking the equipment as abnormal equipment, sending the early warning instruction and the equipment state data to a mobile phone terminal of a selected maintainer, and marking the moment as a sending moment, wherein the specific sending steps are as follows:
s31: sending a position acquisition instruction to mobile phone terminals of all maintenance personnel, and when the maintenance personnel send the current real-time position to an analysis early warning module within a preset time range, marking the maintenance personnel as primary selection early warning personnel by the analysis early warning module; calculating the distance difference between the current real-time position of the primarily selected early warning personnel and the position of the abnormal equipment to obtain the personnel distance, and marking the personnel distance as G1;
s32: acquiring personnel information of the primary early warning personnel, calculating the time difference between the enrollment time of the primary early warning personnel and the current time of the system to acquire the enrollment duration of the primary early warning personnel and marking the enrollment duration as R1; marking the total maintenance times and the age of the primary-selected early warning personnel as R2 and R3 respectively;
s33: will select the early warning personnel for the first timeThe working duration, total maintenance times and age are normalized and numerical values are taken, and a formula is utilized
Acquiring a warning maintenance value FS of the primarily selected early warning personnel, wherein d1, d2, d3, d4 and d5 are all preset proportional coefficients, mu is a correction factor, and the value is 0.9454; r5 is the time value of the early warning personnel for initial selection;
s34: and marking the initially selected early warning personnel with the maximum alarm maintenance value as selected maintenance personnel.
The maintenance authentication module is used for selecting maintenance personnel to authenticate through the mobile phone terminal, and the specific process is as follows: the method comprises the steps that a selected maintainer sends a current real-time position to a maintenance authentication module through a mobile phone terminal, the maintenance authentication module verifies the number and the current real-time position of the selected maintainer and the position of early warning equipment, and after verification is successful, the time is marked as maintenance starting time, and meanwhile, the total maintenance times of the selected maintainer are increased once; marking the maintenance starting time as T1 and the sending time as T2; calculating the time difference between the maintenance starting time and the sending time to obtain a maintenance interval duration and marking the maintenance interval duration as T3; when the maintenance interval duration is less than a set interval threshold T4, performing a single TX value, wherein TX is (T4-T3) x d 6; summing all the single values of the selected maintainers to obtain a timely value R5 of the selected maintainer;
the power supply module is a 12V power supply and is used for supplying power to an MCU (micro control unit), and the MCU is an STM32F103 series single chip microcomputer; the wireless communication module includes, but is not limited to, a 4G communication network;
the above formulas are obtained by collecting a large amount of data and performing software simulation, and the coefficients in the formulas are set by those skilled in the art according to actual conditions.
When the intelligent monitoring system is used, the external input detection module can monitor the power state of external input, a horizontal sensor and a displacement sensor are added, whether equipment is inclined or moved can be monitored, an external relay output circuit is arranged for outputting a driving alarm to the outside under the conditions of equipment failure and danger, meanwhile, an LED control circuit outputs various operation states of the equipment, the abnormal conditions of the equipment can be recorded in flash of the equipment, serial port communication is provided for an upper computer to read, and the equipment is connected with a remote server through a wireless communication module to carry out remote data reporting when the equipment is not networked; the analysis early warning module is used for analyzing and early warning the equipment state data, carry out normalization processing and take its numerical value with inclination in the equipment state data, displacement and the angle of opening the door, utilize the formula KF for K1 x b1+ K2 x b2+ K3 x b3 obtain the early warning value that obtains equipment, when the early warning value is greater than the settlement threshold value, generate the early warning instruction, and send early warning instruction and equipment state data to on selecting maintainer's the cell-phone terminal, carry out the analysis and rationally select corresponding maintainer to carry out the early warning maintenance through the analysis early warning module to equipment state data, conveniently in time inform maintainer to carry out maintenance management to equipment anomaly.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (6)
1. The system for equipment safety management is characterized by comprising an MCU (microprogrammed control Unit), a relay output circuit, an LED (light-emitting diode) control circuit, an external input detection module and a tilt door opening detection module;
the output ends of the external input detection module and the tilt door opening detection module are electrically connected with the input end of the MCU, and the output end of the MCU is respectively connected with the input ends of the relay output circuit and the LED control circuit; the external input detection module is used for monitoring externally input power state data; the tilt door opening detection module is used for monitoring equipment state data of the equipment, wherein the equipment state data comprises an inclination angle, displacement and a door opening angle; the relay output circuit is used for outputting an alarm signal and driving an alarm to give an alarm; the LED control circuit is used for outputting and prompting the running state data of the equipment.
2. The system for equipment security management according to claim 1, wherein the tilt-open door detection module comprises a level sensor, a displacement sensor and an angle sensor; the horizontal sensor is used for monitoring the inclination angle of the equipment; the displacement sensor is used for monitoring the displacement of the equipment; the angle sensor is used for monitoring the door opening angle of the equipment.
3. The system for security management of devices according to claim 1, further comprising a wireless communication module; the MCU is in communication connection with the remote server through the wireless communication module; the wireless communication module is used for the MCU to upload the equipment state data, the running state data and the power supply state data of the equipment to the remote server.
4. The system for device security management according to claim 1, further comprising a flash memory module; the flash storage module is used for storing equipment state data, running state data and power supply state data and is in communication connection with the upper computer through a serial port.
5. The system for equipment security management according to claim 1, further comprising an analysis early warning module; the analysis early warning module is used for analyzing and early warning the equipment state data, and comprises the following specific steps:
the method comprises the following steps: marking the inclination angle, the displacement and the door opening angle in the equipment state data as K1, K2 and K3 respectively;
step two: normalizing the inclination angle, the displacement and the door opening angle, and taking the values of the inclination angle, the displacement and the door opening angle, and obtaining an early warning value of the equipment by using a formula KF (KF) -K1 × b1+ K2 × b2+ K3 × b3, wherein b1, b2 and b3 are all preset weight coefficients;
step three: when the early warning value is larger than the set threshold value, generating an early warning instruction, marking the equipment as abnormal equipment, sending the early warning instruction and the equipment state data to a mobile phone terminal of a selected maintainer, and marking the moment as a sending moment, wherein the specific sending steps are as follows:
s31: sending a position acquisition instruction to mobile phone terminals of all maintenance personnel, and when the maintenance personnel send the current real-time position to an analysis early warning module within a preset time range, marking the maintenance personnel as primary selection early warning personnel by the analysis early warning module; calculating the distance difference between the current real-time position of the primarily selected early warning personnel and the position of the abnormal equipment to obtain the personnel distance, and marking the personnel distance as G1;
s32: acquiring personnel information of the primary early warning personnel, calculating the time difference between the enrollment time of the primary early warning personnel and the current time of the system to acquire the enrollment duration of the primary early warning personnel and marking the enrollment duration as R1; marking the total maintenance times and the age of the primary-selected early warning personnel as R2 and R3 respectively;
s33: normalizing the working time, total maintenance times and age of the pre-selected early warning personnel, taking the numerical values of the working time, total maintenance times and age, and utilizing a formula
Acquiring a warning maintenance value FS of the primarily selected early warning personnel, wherein d1, d2, d3, d4 and d5 are all preset proportional coefficients, mu is a correction factor, and the value is 0.9454; r5 is the time value of the early warning personnel for initial selection;
s34: and marking the initially selected early warning personnel with the maximum alarm maintenance value as selected maintenance personnel.
6. The system for equipment security management according to claim 5, further comprising a maintenance authentication module, wherein the maintenance authentication module is configured to select a maintenance person to perform authentication through a mobile phone terminal, and the specific process is as follows: the method comprises the steps that a selected maintainer sends a current real-time position to a maintenance authentication module through a mobile phone terminal, the maintenance authentication module verifies the number and the current real-time position of the selected maintainer and the position of early warning equipment, and after verification is successful, the time is marked as maintenance starting time, and meanwhile, the total maintenance times of the selected maintainer are increased once; marking the maintenance starting time as T1 and the sending time as T2; calculating the time difference between the maintenance starting time and the sending time to obtain a maintenance interval duration and marking the maintenance interval duration as T3; when the maintenance interval duration is less than a set interval threshold T4, performing a single TX value, wherein TX is (T4-T3) x d 6; summing all the individual values for the selected maintenance person results in a timely value R5 for the selected maintenance person.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011253171.7A CN112433488A (en) | 2020-11-11 | 2020-11-11 | Equipment safety management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011253171.7A CN112433488A (en) | 2020-11-11 | 2020-11-11 | Equipment safety management system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112433488A true CN112433488A (en) | 2021-03-02 |
Family
ID=74700798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011253171.7A Pending CN112433488A (en) | 2020-11-11 | 2020-11-11 | Equipment safety management system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112433488A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114827226A (en) * | 2022-06-30 | 2022-07-29 | 深圳市智联物联科技有限公司 | Remote management method for industrial control equipment |
-
2020
- 2020-11-11 CN CN202011253171.7A patent/CN112433488A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114827226A (en) * | 2022-06-30 | 2022-07-29 | 深圳市智联物联科技有限公司 | Remote management method for industrial control equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115004270B (en) | Monitoring alarm system and method for industrial equipment and device | |
| CN110535238A (en) | A kind of transformer equipment intelligent monitor system and method | |
| CN113542690B (en) | Building construction safety monitoring system and method | |
| CN103599617A (en) | Internet of Things system for monitoring and managing fire-fighting equipment | |
| CN104581030A (en) | Portable intelligent monitoring system | |
| CN108764658B (en) | Intelligent road administration cabinet supervision system based on Internet of things | |
| CN111131478A (en) | Light steel villa monitoring management system | |
| CN110807460A (en) | Transformer substation intelligent patrol system based on image recognition and application method thereof | |
| CN103592929A (en) | Internet of Things system for monitoring and managing fire water supply | |
| CN107661893A (en) | A kind of intelligent vent cabinet system | |
| CN112433488A (en) | Equipment safety management system | |
| CN111741086B (en) | Prison used instrument management information system | |
| CN207709510U (en) | A kind of intelligent vent cabinet system | |
| CN112363467A (en) | MES monitoring and management system based on industrial Internet of things | |
| CN207907933U (en) | A kind of server room monitoring device | |
| CN108123829A (en) | The charged fortune inspection multiplex roles intelligence platform of substation | |
| CN108088497A (en) | A kind of computer floor integrated maintenance system | |
| CN211180571U (en) | Household environment alarm snapshot monitoring system | |
| CN113704066A (en) | Machine room equipment monitoring and management method, storage medium and system | |
| CN112862120A (en) | Power maintenance and repair supervision system and method | |
| CN202652537U (en) | Security host with multiple communication backup function | |
| CN112488331A (en) | Management system and management method for grounding wire of power line operation site | |
| CN111122928A (en) | Electrical complete set of start test separately excited power supply device and providing method thereof | |
| CN102628660A (en) | Mine-used interlocking detonating method and mine-used interlocking detonating system | |
| CN203689105U (en) | Fire-fighting water source monitoring management internet of things system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210302 |