CN111272258A - Flood prevention monitoring system - Google Patents

Flood prevention monitoring system Download PDF

Info

Publication number
CN111272258A
CN111272258A CN202010112697.7A CN202010112697A CN111272258A CN 111272258 A CN111272258 A CN 111272258A CN 202010112697 A CN202010112697 A CN 202010112697A CN 111272258 A CN111272258 A CN 111272258A
Authority
CN
China
Prior art keywords
information
water level
server
flood prevention
rainfall
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
Application number
CN202010112697.7A
Other languages
Chinese (zh)
Inventor
张剑锋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Keyuan Smart Technology Co ltd
Original Assignee
Guangdong Keyuan Smart Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guangdong Keyuan Smart Technology Co ltd filed Critical Guangdong Keyuan Smart Technology Co ltd
Priority to CN202010112697.7A priority Critical patent/CN111272258A/en
Publication of CN111272258A publication Critical patent/CN111272258A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/80Arrangements for signal processing
    • G01F23/802Particular electronic circuits for digital processing equipment
    • G01F23/804Particular electronic circuits for digital processing equipment containing circuits handling parameters other than liquid level
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/14Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measurement of pressure
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284Electromagnetic waves
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06QINFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
    • G06Q50/10Services
    • G06Q50/26Government or public services
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A10/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
    • Y02A10/40Controlling or monitoring, e.g. of flood or hurricane; Forecasting, e.g. risk assessment or mapping

Landscapes

  • Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Tourism & Hospitality (AREA)
  • Signal Processing (AREA)
  • Electromagnetism (AREA)
  • Economics (AREA)
  • Educational Administration (AREA)
  • Development Economics (AREA)
  • Health & Medical Sciences (AREA)
  • Thermal Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Human Resources & Organizations (AREA)
  • Marketing (AREA)
  • Primary Health Care (AREA)
  • Strategic Management (AREA)
  • General Business, Economics & Management (AREA)
  • Theoretical Computer Science (AREA)
  • Alarm Systems (AREA)

Abstract

The invention relates to the technical field of flood prevention monitoring, in particular to a flood prevention monitoring system, which comprises water level monitoring equipment; an image monitoring device; a rain condition monitoring device; a well lid monitoring device; a server; a remote terminal; a wireless communication module; the system comprises an information management client and a solar power supply device; a water level information early warning value is stored in the server; the rainfall information early warning value is stored in the server, and when the rainfall information reported to the server by the remote terminal exceeds the rainfall information early warning value, a rainstorm alarm is sent out through the wireless communication module and the information management client. The invention has the functions of water level acquisition and rainfall acquisition, can automatically collect flood season information for regions where flood seasons are likely to occur, such as tunnels in cities, overpasses, low-lying zones and the like, is convenient for users to perform data analysis, and plays a role in scientific flood prevention monitoring.

Description

Flood prevention monitoring system
Technical Field
The invention relates to the technical field of flood prevention monitoring, in particular to a flood prevention monitoring system.
Background
In many cities in China in recent years, some of stormwater is higher than one meter and cannot be drained in time for a long time, great inconvenience is brought to people's traveling, and death and missing events of dozens of pedestrians are caused, so that high attention of relevant government departments such as municipal administration, flood prevention, road administration and the like is attracted. The existing municipal drainage is generally used for draining accumulated water in time through underground drainage facilities, and well heads of the drainage facilities are mostly provided with well covers. The well cover is used for preventing people from falling into the well mouth, but the existing well cover is easily stolen by lawbreakers, so that the well cover loses the function of preventing people from falling into the well mouth.
On the other hand, when the torrential rain comes temporarily, municipal administration personnel can not know the precipitation in which areas, can not know which drainage facility's water level is full or block up to can not in time dredge it and handle, lead to the condition that ponding even water logging appears, cause economic loss.
Therefore, there is a need for a flood prevention monitoring system that overcomes the above-mentioned technical problems.
Disclosure of Invention
The invention provides a flood prevention monitoring system aiming at the problems in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme: a flood prevention monitoring system comprises water level monitoring equipment for detecting water level information in a drainage facility; an image monitoring device for acquiring image information; the rainfall condition monitoring device is used for acquiring rainfall information; the well lid monitoring equipment is used for monitoring the well lid state information; the server is used for storing water level information, image information, precipitation information and well lid state information; the remote measuring terminal is used for actively uploading water level information, image information, precipitation information and well lid state information to the server at regular time or realizing a remote measuring function by an external mobile terminal; the wireless communication module is used for enabling the server to perform a wireless communication function with an external mobile terminal; the system comprises an information management client for facilitating a user to log in a server to check information and a solar power supply device for supplying power to water level monitoring equipment, image monitoring equipment, rain condition monitoring equipment, well lid monitoring equipment and a remote measuring terminal; the server stores a water level information early warning value, and when the water level information reported to the server by the telemetering terminal exceeds the water level information early warning value, the server sends out a water immersion alarm through the wireless communication module and the information management client; the rainfall information early warning value is stored in the server, and when the rainfall information reported to the server by the remote terminal exceeds the rainfall information early warning value, a rainstorm alarm is sent out through the wireless communication module and the information management client.
Further, the water level monitoring device comprises a radar water level gauge and/or a bubble type water level gauge.
Further, the image monitoring device is a camera.
Further, the condition monitoring device is a rainfall sensor.
Further, well lid monitoring facilities is equipped with status warning light, address coordinate transmitter and IMEI identification code.
Furthermore, the information management client is also provided with a geographic information system.
Furthermore, the remote terminal is provided with a third-party open type structure interface.
Further, the user comprises a super manager and a common manager, wherein the account password is created by the super manager, and both the super manager and the common manager can view the equipment and information of the flood prevention monitoring system.
The invention has the beneficial effects that: 1. the system has the water level acquisition function and the rainfall acquisition function, can provide flood season information automatic collection for regions where flood conditions are prone to occur, such as tunnels in cities, overpasses and low-lying zones, comprises the step of acquiring water level information and rainfall information of corresponding regions, is convenient for users to perform data analysis, and plays a role in scientifically monitoring flood prevention.
2. The image monitoring equipment is used for comprehensively collecting the image information of the corresponding area, and a user can visually observe whether the current corresponding area has flood conditions through the image.
3. The well lid state on the drainage facility to the area is monitored through well lid monitoring facilities, and the well lid state is including normal, not hard up and open, plays the effect of theftproof protection to the well lid.
4. The water level information, the image information, the precipitation information and the well lid state information are sent to the mobile terminal of the user through the wireless communication module, the user can receive the information remotely and regularly, convenience is improved, in addition, the user can call monitoring equipment remotely to monitor real-time data, and timeliness of the information is achieved.
5. The information is stored through the server, so that the information is convenient to check and perform data list analysis on the information; the early warning value of the water level information is stored in the server and compared with the collected water level information, a water immersion alarm is sent out when the early warning value of the water level information is exceeded, meanwhile, the early warning value of the rainfall information is stored in the server and compared with the collected rainfall information, a rainstorm alarm is sent out when the early warning value of the rainfall information is exceeded, and the function of early warning is achieved.
Drawings
FIG. 1 is a block diagram of the present invention.
Fig. 2 is a schematic diagram of the bubble type water level gauge displayed on an information management client side according to the present invention.
Fig. 3 is a schematic view of precipitation information collection of the rain condition monitoring device according to the present invention.
FIG. 4 is a schematic diagram of image information collection of the image monitoring device according to the present invention.
FIG. 5 is a schematic illustration of a geographic information system display in accordance with the present invention.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following embodiments and accompanying drawings.
Referring to fig. 1 to 5, a flood prevention monitoring system includes
A water level monitoring device for detecting water level information in the drainage facility;
an image monitoring device for acquiring image information;
the rainfall condition monitoring device is used for acquiring rainfall information;
the well lid monitoring equipment is used for monitoring the well lid state information;
the server is used for storing water level information, image information, precipitation information and well lid state information;
the remote measuring terminal is used for actively uploading water level information, image information, precipitation information and well lid state information to the server at regular time or realizing a remote measuring function by an external mobile terminal;
the wireless communication module is used for enabling the server to perform a wireless communication function with an external mobile terminal;
information management client for facilitating user to log in server to check information and method thereof
The solar power supply device is used for supplying power to the water level monitoring equipment, the image monitoring equipment, the rain condition monitoring equipment, the well lid monitoring equipment and the remote measuring terminal;
the server stores a water level information early warning value, and when the water level information reported to the server by the telemetering terminal exceeds the water level information early warning value, the server sends out a water immersion alarm through the wireless communication module and the information management client;
the rainfall information early warning value is stored in the server, and when the rainfall information reported to the server by the remote terminal exceeds the rainfall information early warning value, a rainstorm alarm is sent out through the wireless communication module and the information management client.
When the flood season information collection system is actually used, the flood season information collection system has a water level collection function and a rainfall collection function, can automatically collect flood season information aiming at regions where flood conditions are prone to occur, such as tunnels in cities, overpasses and low-lying zones, comprises the step of collecting water level information and rainfall information of corresponding regions, is convenient for users to carry out data analysis, and plays a role in scientifically monitoring flood prevention.
The image monitoring equipment is used for comprehensively collecting the image information of the corresponding area, and a user can visually observe whether the current corresponding area has flood conditions through the image.
The well lid state on the drainage facility to the area is monitored through well lid monitoring facilities, and the well lid state is including normal, not hard up and open, plays the effect of theftproof protection to the well lid.
The water level information, the image information, the precipitation information and the well lid state information are sent to the mobile terminal of the user through the wireless communication module, the user can receive the information remotely and regularly, convenience is improved, in addition, the user can call monitoring equipment remotely to monitor real-time data, and timeliness of the information is achieved.
The information is stored through the server, so that the information is convenient to check and perform data list analysis on the information; the early warning value of the water level information is stored in the server and compared with the collected water level information, a water immersion alarm is sent out when the early warning value of the water level information is exceeded, meanwhile, the early warning value of the rainfall information is stored in the server and compared with the collected rainfall information, a rainstorm alarm is sent out when the early warning value of the rainfall information is exceeded, and the function of early warning is achieved.
The user can add, modify and delete the monitoring equipment by logging in the information management client, and check the monitoring obtained information, online data analysis and online early warning analysis on line.
The wireless communication module can realize the functions of short message communication, 4G, 5G and/or NB-iot communication. The wireless communication module can adopt the existing module to realize wireless communication.
In this embodiment, the water level monitoring device includes a radar level gauge and/or a bubble level gauge.
The radar water level gauge has the characteristics of small beam angle, concentrated energy and stronger anti-interference capability, and greatly improves the measurement precision and reliability. In addition, the antenna has small size, is convenient to install and add antenna protection devices such as dust covers, and has light weight and convenient installation. The measuring range is up to 70 meters.
The bubble type water level gauge has the characteristics of non-contact measurement, high stability, high precision and high resolution, low power consumption, small volume, convenience for embedded application, good stability and convenience for maintenance.
In this embodiment, the image monitoring device is a camera. The image information of the area where the camera is located can be checked regularly or in real time, and subsequent image analysis is convenient to perform.
In this embodiment, the rain condition monitoring device is a rainfall sensor. The measuring accuracy of the rainfall sensor is less than or equal to +/-3%, the rain intensity range is 0.01 mm-4 mm/min, the maximum rain intensity is allowed to pass through 8mm/min, and the signaling mode is double-contact on-off signal output.
In this embodiment, well lid monitoring facilities is equipped with status warning light, address coordinate transmitter and IMEI identification code. The state warning light is used for monitoring the state of corresponding well lid, and the well lid state is including normal, not hard up and open, plays the effect of theftproof protection to the well lid. When the well lid is loosened or opened, the state alarm lamp of the well lid monitoring equipment emits red light to remind workers of corresponding treatment. When the well lid is normal, then the state warning light sends the green glow.
The address coordinate transmitter can send the coordinates of the corresponding area of the well lid to the information management client and the mobile terminal, so that the worker can conveniently and rapidly position the problematic well lid. The IMEI identification code is equivalent to the identity recognition of each well lid, and each well lid is conveniently distinguished.
On the other hand, well lid monitoring facilities is equipped with the sensor that touches that is used for installing in the bottom of well lid, sets up like this when drainage facility's water level is high to triggering to touch the water sensor, then sends the full water alarm of drainage facility to mobile terminal through wireless communication module. Reminding the worker.
In this embodiment, the information management client is further provided with a geographic information system. Therefore, information of the area corresponding to the well lid, such as street names or surrounding building names, can be sent to the information management client and the mobile terminal, and workers can conveniently and rapidly position the well lid with problems.
In this embodiment, the telemetry terminal is provided with a third-party open architecture interface. The third-party system is connected in the setting way, the required related data are provided, the function of expanding the system is realized, and the system has good expandability and openness.
In this embodiment, the user includes a super manager and a general manager, wherein the account password is created by the super manager, and both the super manager and the general manager can view the equipment and information of the flood prevention monitoring system. The setting ensures that the users have authority difference, and avoids the difference degree of clear management when the users are managed by exceeding the authority. And the management is convenient. The super administrator is used for playing roles of adding common administrators, editing common administrators and deleting common administrators
Although the present invention has been described with reference to the above preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (8)

1. The flood prevention monitoring system is characterized in that: comprises that
A water level monitoring device for detecting water level information in the drainage facility;
an image monitoring device for acquiring image information;
the rainfall condition monitoring device is used for acquiring rainfall information;
the well lid monitoring equipment is used for monitoring the well lid state information;
the server is used for storing water level information, image information, precipitation information and well lid state information;
the remote measuring terminal is used for actively uploading water level information, image information, precipitation information and well lid state information to the server at regular time or realizing a remote measuring function by an external mobile terminal;
the wireless communication module is used for enabling the server to perform a wireless communication function with an external mobile terminal;
information management client for facilitating user to log in server to check information and method thereof
The solar power supply device is used for supplying power to the water level monitoring equipment, the image monitoring equipment, the rain condition monitoring equipment, the well lid monitoring equipment and the remote measuring terminal;
the server stores a water level information early warning value, and when the water level information reported to the server by the telemetering terminal exceeds the water level information early warning value, the server sends out a water immersion alarm through the wireless communication module and the information management client;
the rainfall information early warning value is stored in the server, and when the rainfall information reported to the server by the remote terminal exceeds the rainfall information early warning value, a rainstorm alarm is sent out through the wireless communication module and the information management client.
2. The flood prevention monitoring system according to claim 1, characterized in that: the water level monitoring device comprises a radar water level gauge and/or a bubble type water level gauge.
3. The flood prevention monitoring system according to claim 1, characterized in that: the image monitoring device is a camera.
4. The flood prevention monitoring system according to claim 1, characterized in that: the rain condition monitoring equipment is a rainfall sensor.
5. The flood prevention monitoring system according to claim 1, characterized in that: the well lid monitoring equipment is provided with a state alarm lamp, an address coordinate transmitter and an IMEI identification code.
6. The flood prevention monitoring system according to claim 1, characterized in that: the information management client is also provided with a geographic information system.
7. The flood prevention monitoring system according to claim 1, characterized in that: the remote terminal is provided with a third-party open type structure interface.
8. The flood prevention monitoring system according to claim 1, characterized in that: the user comprises a super manager and a common manager, wherein the account password is created by the super manager, and the super manager and the common manager can check the equipment and information of the flood prevention monitoring system.
CN202010112697.7A 2020-02-24 2020-02-24 Flood prevention monitoring system Pending CN111272258A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010112697.7A CN111272258A (en) 2020-02-24 2020-02-24 Flood prevention monitoring system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010112697.7A CN111272258A (en) 2020-02-24 2020-02-24 Flood prevention monitoring system

Publications (1)

Publication Number Publication Date
CN111272258A true CN111272258A (en) 2020-06-12

Family

ID=70999173

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010112697.7A Pending CN111272258A (en) 2020-02-24 2020-02-24 Flood prevention monitoring system

Country Status (1)

Country Link
CN (1) CN111272258A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113538858A (en) * 2021-07-15 2021-10-22 华能澜沧江水电股份有限公司 Hydropower station drainage area flood prevention early warning device and early warning method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204902928U (en) * 2015-05-06 2015-12-23 湖南大麓管道工程有限公司 Level monitor
CN105897719A (en) * 2016-04-28 2016-08-24 陕西永诺信息科技有限公司 Ground well detection communication system
CN107024882A (en) * 2017-04-29 2017-08-08 滨和环境建设集团有限公司 A kind of intelligent well cover prior-warning device and pre-alarming control system
CN207672619U (en) * 2017-11-24 2018-07-31 亚创智造科技(深圳)有限公司 A kind of intelligent anti-theft manhole lid device
CN209308073U (en) * 2018-12-04 2019-08-27 王藤儒 A kind of self-powered water level early warning well lid
CN110530458A (en) * 2019-07-10 2019-12-03 西安山脉科技股份有限公司 A kind of flood control system for monitoring, forecasting and warning

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204902928U (en) * 2015-05-06 2015-12-23 湖南大麓管道工程有限公司 Level monitor
CN105897719A (en) * 2016-04-28 2016-08-24 陕西永诺信息科技有限公司 Ground well detection communication system
CN107024882A (en) * 2017-04-29 2017-08-08 滨和环境建设集团有限公司 A kind of intelligent well cover prior-warning device and pre-alarming control system
CN207672619U (en) * 2017-11-24 2018-07-31 亚创智造科技(深圳)有限公司 A kind of intelligent anti-theft manhole lid device
CN209308073U (en) * 2018-12-04 2019-08-27 王藤儒 A kind of self-powered water level early warning well lid
CN110530458A (en) * 2019-07-10 2019-12-03 西安山脉科技股份有限公司 A kind of flood control system for monitoring, forecasting and warning

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
刘正国: "《中小型水库安全管理与监测》", 30 July 2005 *
郑萍: "基于移动互联网的垮平台医疗卫生干部管理系统的设计和实现", 《医疗卫生设备》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113538858A (en) * 2021-07-15 2021-10-22 华能澜沧江水电股份有限公司 Hydropower station drainage area flood prevention early warning device and early warning method

Similar Documents

Publication Publication Date Title
CN102496240B (en) Mud-rock flow early warning system
CN102654397B (en) Tilting detection method for towers
CN111915847A (en) Refined rainfall forecasting system and early warning method thereof
CN104574874A (en) Urban drainage and waterlog-preventing integrated control system
CN103512621A (en) Environment monitoring method and system
CN113112759A (en) Beidou-based geological disaster monitoring Beidou early warning and alarming system and method
US20240045063A1 (en) Iot-based groundwater monitoring system using lidar sensor technology
CN114374716A (en) Geological disaster remote monitoring system and monitoring method thereof
CN104790499A (en) Inspection well lid device for urban waterlogging analysis
CN115471965A (en) Power transmission line area protection system and protection method
CN115035690A (en) Geological disaster monitoring and early warning method
CN112017419A (en) Building safety monitoring and early warning system and method based on multi-source data
CN115749955A (en) Tailing pond safety risk real-time early warning system based on multi-dimensional perception
CN111272258A (en) Flood prevention monitoring system
CN209417901U (en) Mountain flood dynamic early-warning system based on soil moisture content real time correction
CN207182625U (en) A kind of debris flow early-warning system
CN107367309A (en) A kind of overpass waterlogging early-warning and predicting and pumping station automatization control system
CN113487837A (en) Debris flow monitoring and early warning system and method
CN116704705A (en) Method, system, equipment, medium and product for monitoring tunnel portal uphill disaster
CN106368289A (en) Drainage pipe network remote monitoring system
CN212933719U (en) Integrally designed debris flow real-time online monitoring and early warning system
CN205959031U (en) Tower mast monitored control system
CN114966229A (en) Static lightning approach early warning detection system
CN212809411U (en) Geological disaster monitoring group device powered by solar energy
CN111402550A (en) City fire hydrant monitoring facilities based on NB-IoT technique

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
RJ01 Rejection of invention patent application after publication

Application publication date: 20200612

RJ01 Rejection of invention patent application after publication