CN-122024459-A - Split type intelligent well lid monitoring system and method

CN122024459ACN 122024459 ACN122024459 ACN 122024459ACN-122024459-A

Abstract

The invention relates to the field of well lid monitoring, in particular to a split intelligent well lid monitoring system and method. The system comprises a well lid abnormal movement monitoring terminal, a wireless transmission host and a wireless transmission host, wherein the well lid abnormal movement monitoring terminal comprises a first battery, an acceleration sensor, a first processor and a first near-end wireless communication module, the well lid abnormal movement monitoring terminal is installed on the back surface of a well lid or integrated in the well lid, the wireless transmission host comprises a second battery, a second processor, a far-end wireless communication module and a second near-end wireless communication module in communication connection with the first near-end wireless communication module, and the wireless transmission host is installed on a well wall in the well and is physically separated from the well lid abnormal movement monitoring terminal. The problems that in the prior art, wireless signals existing in well lid monitoring are seriously shielded by the well lid, equipment is large in size, poor in installation suitability, limited in antenna optimization and difficult in battery maintenance are solved.

Inventors

XING JINGHONG
LUO CHAO
XU XINYUAN
JI ZHI
GAO BO

Assignees

西安中星测控有限公司

Dates

Publication Date: 20260512
Application Date: 20260202

Claims (10)

1. A split intelligent well lid monitoring system is characterized by comprising, The well lid abnormal movement monitoring terminal comprises a first battery, an acceleration sensor, a first processor and a first near-end wireless communication module, and is installed on the back of the well lid or integrated in the well lid; The wireless transmission host comprises a second battery, a second processor, a far-end wireless communication module and a second near-end wireless communication module which is in communication connection with the first near-end wireless communication module, and is arranged on a well wall in a well and is physically separated from the well lid abnormal movement monitoring terminal; The well lid abnormal monitoring terminal establishes a near-end wireless communication link with a second near-end wireless communication module of the wireless transmission host through the first near-end wireless communication module, and is used for sending monitoring data to the wireless transmission host, and the wireless transmission host forwards the received data to the management cloud platform through the far-end wireless communication module.
2. The system of claim 1, wherein the first processor is integrated in a first near-end wireless communication module, the first near-end wireless communication module being a wireless communication module having OpenCPU architecture.
3. The system of claim 2, wherein the wireless transmission host further comprises a protective housing and a high-gain external antenna, wherein the high-gain external antenna is electrically connected with the remote wireless communication module and is exposed outside the protective housing of the wireless transmission host.
4. The split intelligent well lid monitoring system of claim 3, wherein the wireless transmission host further comprises a detachable battery compartment, the second battery is arranged in the battery compartment and combined into a battery pack unit, and a power interface for connecting the battery compartment is arranged on a protective shell of the wireless transmission host.
5. The split intelligent well lid monitoring system according to claim 1, wherein the well lid abnormality monitoring terminal and the wireless transmission host are configured to periodically perform heartbeat signals through the near-end wireless communication link in a monitoring state, wherein the heartbeat communication is used for maintaining a link on-line state and acquiring data of a current state of the well lid abnormality monitoring terminal; The second processor of the wireless transmission host is further configured to determine that the well lid is in an abnormal missing state when a heartbeat signal from the well lid abnormality monitoring terminal is not received within a preset timeout period, and send missing alarm information to the management cloud platform through the remote wireless communication module.
6. The split intelligent well lid monitoring system of claim 1, wherein the number of well lid transaction monitoring terminals is a plurality of and each of the plurality of well lid transaction monitoring terminals is configured to be installed at different positions of the same well lid; The second processor of the wireless transmission host is further configured to receive and fuse monitoring data from the plurality of manhole cover abnormal monitoring terminals, and judge the overall state or deformation trend of the manhole cover based on data fusion results or edge calculation.
7. The split intelligent well lid monitoring system of claim 1, wherein the wireless transmission host further comprises at least one sensor interface for detachably connecting an extension sensor; The expansion sensor comprises at least one of a water level sensor, a temperature sensor, a gas sensor and a liquid level meter.
8. The split intelligent manhole cover monitoring system of claim 1, wherein the working distance of the near-end wireless communication link is configured to be less than or equal to 2 meters; The well lid abnormal movement monitoring terminal is configured to continuously collect acceleration data through the acceleration sensor, convert the acceleration data into inclination angle data of the well lid based on an angle resolving algorithm, and send abnormal movement alarm data to the wireless transmission host through the first near-end wireless communication module when the inclination angle data exceeds a preset threshold value.
9. The split intelligent well lid monitoring system of claim 1, wherein the physical distance between the well lid transaction monitoring terminal and the wireless transmission host is greater than or equal to 1 meter and less than or equal to 2 meters.
10. A split intelligent well lid monitoring method for a system as claimed in any one of claims 1 to 9, comprising the steps of, The method comprises the steps that a well lid abnormal monitoring terminal continuously collects acceleration data and performs angle calculation in a low-power consumption mode, periodic heartbeat communication is maintained between the well lid abnormal monitoring terminal and a wireless transmission host through a near-end wireless communication link, and the wireless transmission host monitors signals of the heartbeat communication; When the acceleration data or the inclination angle value calculated by the acceleration data exceeds a preset threshold value, the well lid abnormality monitoring terminal is awakened and immediately sends an abnormality alarm data message to the wireless transmission host through the near-end wireless communication link, and the wireless transmission host forwards the message to a management cloud platform through a far-end wireless communication module after receiving the message; When the wireless transmission host does not receive an effective heartbeat signal within a preset timeout period, the manhole cover abnormal monitoring terminal is judged to be separated from a normal working range along with the abnormal manhole cover, a manhole cover missing alarm is generated, and the manhole cover missing alarm is uploaded to a management cloud platform through a remote wireless communication module of the wireless transmission host.

Description

Split type intelligent well lid monitoring system and method Technical Field The invention relates to the field of well lid monitoring, in particular to a split intelligent well lid monitoring system and method. Background Along with the continuous deepening and expansion of smart city construction, the intelligent well lid monitoring technology has become one of core technical means for guaranteeing the safe and stable operation of infrastructure such as urban underground pipe networks. The technology is widely applied to key fields of municipal drainage, power communication, gas transportation, water conservancy traffic and the like, and a monitoring network of the technology covers key pipe network areas of over 300 ground cities nationally. The core function of the system is evolved from early single anti-theft alarm to a comprehensive monitoring system integrating the real-time sensing of the multi-dimensional states of well lid displacement, inclination, water immersion, harmful gas concentration and the like, and plays the role of nerve ending for connecting the urban overground and underground space. Although the development of low power wide area network (e.g., NB-IoT, cat.1, loRa) technologies and micro power sensors (standby power consumption may be less than 20 microamps) has driven advances in this field, a serious set of technical challenges and bottlenecks are faced in practical large-scale deployment and application. The system comprises a monitoring terminal, a sensor, a battery, a mounting bracket, a fitting, a mounting bracket and a fitting, wherein the sensor is poor in performance under an extreme environment, the sensor is easy to malfunction or damage due to low temperature in a northern severe cold region, water inflow is easy to cause faults due to insufficient sealing performance of the device in the southern severe cold region, secondly, the energy supply is poor in endurance performance, the monitoring terminal is in an underground airtight or semi-airtight environment for a long time, the monitoring terminal mainly depends on built-in battery to supply power, the conventional battery technology is difficult to achieve ideal balance between meeting the power consumption requirements of multifunctional and periodical reporting and realizing ultra-long endurance, the battery is exhausted in advance, the risk of a monitoring blind area is obvious, the battery failure of the batch equipment is easy to cause, the critical drainage well lid monitoring system in the flood period is easy to break down, the safety hidden danger is caused by the sudden leakage, further, the mounting and compatible trouble is caused by integrated design, the current mainstream products are mainly integrated equipment which is highly integrated and is required to be integrally mounted on a well lid, the integrated function is often larger, the equipment size is poor in adaptability to different materials (such as cast iron and composite materials), different types and well lids with different specifications are difficult to select, the mounting bracket and fittings are difficult to guarantee, the firmness and the reliability are difficult to be easily influenced, and the influence on the external force of vehicles such as rolling. In addition, on one hand, wireless signal transmission is influenced by the shielding of the manhole cover material, cast iron manhole covers (gray cast iron and ductile cast iron) still dominate in the market at present, and the metal characteristic of the wireless signal transmission has a strong shielding effect on infinite signals. The common mode of installing the sensor at the well lid back punching for sensor casing closely laminates with the metal well lid, leads to radio signal (especially from the penetration transmission of underground to road surface) to produce serious decay. Even the ground network covers well, the signal is difficult to effectively spread out, has greatly restricted communication reliability to be limited by integral type design, if set up the antenna and need built-in installation, external easily receive well lid construction or drag the influence, will the antenna subsides dress can produce serious signal shielding and narrow and small space and lead to the antenna to optimize to be limited inside the casing. On the other hand, in order to deal with well lid displacement or robbery, part of schemes try to integrate satellite positioning modules, but new contradictions are caused. The module has high power consumption, can obviously shorten the service life of the tension battery and has higher cost. In order to guarantee the real consideration of duration and control cost, many products are forced to abandon the positioning function, and when the illegal movement of well lid takes place, management platform can't in time acquire the information that the well lid lacks, can not in time avoid the potential safety hazard, forms the safe blind area. F