CN115628773A - Cable middle head underground environment comprehensive monitoring system and monitoring method - Google Patents
Cable middle head underground environment comprehensive monitoring system and monitoring method Download PDFInfo
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- CN115628773A CN115628773A CN202211213106.0A CN202211213106A CN115628773A CN 115628773 A CN115628773 A CN 115628773A CN 202211213106 A CN202211213106 A CN 202211213106A CN 115628773 A CN115628773 A CN 115628773A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Abstract
The invention relates to the field of comprehensive monitoring of an underground operation environment of a 10kV cable middle head, and provides a comprehensive monitoring system and a monitoring method of the underground environment of the cable middle head, wherein the comprehensive monitoring system comprises a temperature sensor, a water level sensor, a communication module, a microprocessor, a cloud server, a power supply module and a terminal; according to the invention, the temperature sensor and the water level sensor are arranged at the middle head of the underground cable to obtain the current temperature information and water level information, the microprocessor is used for transmitting the underground environment information to the cloud server through the communication module, the cloud server is used for processing and analyzing the underground environment information, finally the environment information and alarm information are transmitted to the terminal, and related workers can know the underground operation environment information of the middle head of the cable at the first time through the terminal.
Description
Technical Field
The invention relates to the field of comprehensive monitoring of an underground operation environment of a 10kV cable middle head, in particular to a comprehensive monitoring system and a comprehensive monitoring method of the underground environment of the cable middle head.
Background
With the vigorous development of national socioeconomic, the requirement of the stability of the power system is increased. The power cable has the characteristics of not occupying urban land resources and ensuring the tidiness and beauty of cities, so that the power cable gradually replaces an overhead line and becomes a main power supply mode.
The cable observation well is divided into a common observation well and an intermediate junction well, and the specification requirements of the cable observation well include that a cable in the cable observation well can not be soaked for a long time and a joint of the cable junction well can not be soaked. The operational environment requirements of the junction wells are higher in terms of their operational environment requirements, the most dangerous of which is the flooding of the intermediate junctions. In actual use, the condition of water accumulation in a cable well is still ubiquitous due to factors such as structural aging in the well, geological topography change, long-term rainwater irrigation, strong rainfall and the like, the increase of the humidity in the well obviously can cause the shortening of the service life of a middle head of a cable, the cable joint can be directly punctured and exploded due to insulation reduction for a long time, and the 'untimely bomb' seriously influences the safe operation of line equipment.
At present, the control condition of the underground environment of the cable middle head is also based on personnel-to-site verification, the position change of a middle joint well, the environment in the well, the temperature measurement of the middle head, the water level condition verification and the like can not be checked in real time, the uncertainty of the operation of the middle head can not be estimated, and the danger of the personnel to the environment in the well in the process of going into the well can not be predicted. Not only consumes a lot of manpower and time, but also has the danger of personal safety.
Disclosure of Invention
The purpose of the invention is: the underground environment comprehensive monitoring system and method for the cable middle head solve the technical problems that the underground environment of the cable middle head is complex and underground environment information cannot be timely and safely mastered in the prior art.
The technical scheme of the invention is as follows:
the utility model provides a first downhole environment integrated monitoring system in middle of cable, is applied to first in the middle of the cable in the pit, includes temperature sensor, level sensor, communication module, microprocessor, cloud ware, power module and terminal:
the temperature sensor is used for monitoring the temperature information of the cable middle head and sending the temperature information to the microprocessor in real time;
the water level sensor is used for monitoring water level information of the cable middle head and sending the water level information to the microprocessor in real time;
the communication module is used for establishing a wireless communication channel between the microprocessor and the cloud server through a GRPS network;
the microprocessor is used for acquiring the temperature information and the water level information and sending the temperature information and the water level information to the cloud server at preset time intervals;
the power supply module is used for supplying power to the temperature sensor, the water level sensor, the communication module and the microprocessor;
and the cloud server is used for storing and analyzing the temperature information and the water level information, and sending alarm information to the terminal when the temperature information is greater than a preset temperature or the water level information is greater than a preset water level.
Further, the terminal is used for sending a request for acquiring real-time temperature information and water level information to the cloud server;
and the cloud server is used for controlling the microprocessor to set a preset time interval to be 0min according to the request.
Further, the monitoring system includes:
the GPS positioning module is used for detecting positioning information of the cable middle head; sending the positioning information to a microprocessor;
the microprocessor sends the positioning information to the cloud server through the communication module, and the cloud server sends the positioning information to the terminal.
Further, the power module consists of a lithium sub-battery and a power management module connected with the lithium sub-battery.
Further, the communication module is an NB-IOT wireless communication module.
The monitoring system further comprises an in-well water pump module, the in-well water pump module is electrically connected with the power supply module, and the in-well water pump module is connected with the microprocessor through a CAN (controller area network) line;
when the water level information reaches the preset water drainage water level, the microprocessor controls the water pump module in the well to start the water pump to drain water.
Further, the terminal is used for sending a request for setting a preset time interval, preset temperature information, preset water level information and a preset drainage water level to the cloud server, and the cloud server controls the microprocessor to set according to the request.
A method for comprehensively monitoring the downhole environment of a middle head of a cable adopts the monitoring system, and the method comprises the following steps:
collecting current temperature information, water level information and positioning information; comparing the temperature information with preset temperature information, and comparing the water level information with preset water level information;
and when the temperature information is greater than the preset temperature information or the water level information is greater than the preset water level information, sending alarm information and positioning information.
Further, the method comprises:
and when the water level information is greater than the preset water level information and greater than the preset water drainage level, starting the water pump to drain water.
The invention adopting the technical scheme has the advantages that:
1. the operating temperature condition of the middle head can be mastered in real time, temperature early warning and warning levels can be set, a differential temperature warning value can be set in a developing way, temperature information can be uploaded in time, early warning information can be uploaded in time, and personnel can be informed to inspect and watch the temperature in time; the background can form a historical temperature curve according to temperature uploading information, a hidden danger ledger is established, and the hidden danger middle head is combined with the power failure maintenance to accurately and effectively process the problem middle head.
2. The water level value can be monitored through the environmental water level monitoring terminal, monitoring data are uploaded to the monitoring system through the local communication network, the three-section type alarm water level height can be configured, and the system sends, executes or stops the drainage function according to set alarm water level progress information.
3. Monitoring information can be checked in real time through a mobile phone end of the cloud server system, the functions of early warning and warning information reminding are turned on, the function of locating and checking the head well in the middle of the cable can be realized, accurate navigation on the cable well can be realized, the personnel in the troubleshooting stage can be ensured to quickly reach the head well, and the timeliness of fault treatment is improved.
Drawings
The invention is further illustrated by the non-limiting examples given in the accompanying drawings;
FIG. 1 is a frame diagram of a comprehensive downhole environment monitoring system for a cable intermediate head according to the present invention.
Detailed Description
The present invention will be described in detail with reference to the drawings and specific embodiments, wherein like reference numerals are used for similar or identical parts in the drawings or the description, and implementations not shown or described in the drawings are known to those of ordinary skill in the art. In addition, directional terms, such as "upper", "lower", "top", "bottom", "left", "right", "front", "rear", and the like, used in the embodiments are only directions referring to the drawings, and are not intended to limit the scope of the present invention.
As shown in fig. 1, the downhole environment comprehensive monitoring system for the cable middle head of the invention is applied to the downhole cable middle head, and comprises a temperature sensor, a water level sensor, a communication module, a microprocessor, a cloud server, a power supply module and a terminal:
the temperature sensor is used for monitoring the temperature information of the cable middle head and sending the temperature information to the microprocessor in real time; the temperature sensor is sleeved on the middle head of the cable, and the signal output end of the temperature sensor is connected with the microprocessor through an electric wire to transmit temperature information;
the water level sensor is used for monitoring water level information of the cable middle head and sending the water level information to the microprocessor in real time; the water level sensor is fixed on the wall under the cable well, and the signal output end of the water level sensor is connected with the microprocessor through a wire to transmit water level information;
the communication module is used for establishing a wireless communication channel between the microprocessor and the cloud server through a GRPS network; in the embodiment, the communication module adopts an NB-IoT wireless communication module; the cellular data connection of low-power-consumption equipment in a Wide Area Network (WAN) is supported, the low-power-consumption WAN is also called as a low-power-consumption wide area network (LPWAN), and the NB-IoT supports high-efficiency connection of equipment with long standby time and higher network connection requirements, so that the requirements of a complex underground environment on low power consumption and high-efficiency connection of a communication module can be met;
the microprocessor is used for acquiring the temperature information and the water level information and sending the temperature information and the water level information to the cloud server at preset time intervals; in the embodiment, the microprocessor sends data to the cloud server at intervals of 15-480 minutes, so that the power consumption of the microprocessor is reduced, and the microprocessor is durable in use. The time interval can be adjusted according to geographical information, weather conditions and working conditions, for example, the horizontal position of the cable middle head is lower than that of other cable middle heads, the external environment is raining, the cable middle head is used for a long time, and the time interval can be set to be smaller, for example, 1-5 minutes, in order to obtain more accurate and timely data. In this embodiment, AT89C51 is preferably used as the microprocessor, which has advantages of low cost and high efficiency;
the power supply module is used for supplying power to the temperature sensor, the water level sensor, the communication module and the microprocessor; the power module is electrically connected with the temperature sensor, the water level sensor, the communication module and the microprocessor, and in the embodiment, the power module preferably consists of a lithium sub-battery and a power management module connected with the lithium sub-battery; the working voltage is high and stable; the application temperature range is wide: the working temperature is between 40 ℃ below zero and 85 ℃; the storage performance is good: the self-discharge rate of the lithium sub-battery is extremely low, and is only 1% per year; the structure reliability is good: the lithium secondary battery adopts a full-sealed structure, so that leakage is effectively prevented;
and the cloud server is used for storing and analyzing the temperature information and the water level information, and sending alarm information to the terminal when the temperature information is greater than a preset temperature or the water level information is greater than a preset water level. In this embodiment, the terminal is preferably a mobile terminal, and the alarm information can be sent to the mobile terminal in a plurality of ways, such as short message, telephone, weChat prompt, APP message prompt, etc., so as to ensure that the worker can obtain the alarm information at the first time.
Among the prior art, the grasp to the first underground environment condition in the middle of the cable is based on personnel to the on-the-spot verification, need personnel to go into the well to utilize monitoring facilities to monitor the analysis with the underground condition including middle first temperature measurement, the water level condition, and in reality because factors such as well internal structure is ageing, geological topography changes, long-term rainwater is irritated, heavy rainfall cause the cable well internal environment complicated and have very big potential safety hazard, personnel are in a trade and are gone into the well and look over the loss that causes property safety easily, also can consume a large amount of manpower and materials simultaneously.
Compared with the prior art, the temperature sensor and the water level sensor are arranged at the middle head of the underground cable to obtain the current temperature information and the current water level information, the microprocessor is used for transmitting the underground environment information to the cloud server through the communication module, the cloud server is used for processing and analyzing the underground environment information, finally the environment information and the alarm information are sent to the terminal, and related workers can know the underground environment information at the first time through the terminal.
In some embodiments, the personnel can send a request for acquiring real-time temperature information and water level information to the cloud server through the terminal;
and after the cloud server receives the acquisition request, the control microprocessor changes the preset time interval to 0min. At the moment, the environment information sent by the microprocessor to the cloud server is the real-time temperature information and the water level information, and the cloud server sends the acquired real-time temperature information and the acquired water level information to the terminal.
When the terminal stops sending a request for acquiring real-time temperature information and water level information to the cloud server, the cloud server controls the microprocessor to restore the preset time interval to the last preset time interval.
The requirement that personnel look over real-time environment information at any time can be satisfied, production safety is ensured, and when personnel need not look over real-time environment information, microprocessor resumes the setting that interval preset time sent environmental information again, reduces the energy consumption of this system, increase of service life simultaneously.
In some embodiments, the monitoring system of the present invention comprises:
the GPS positioning module is used for detecting positioning information of the cable middle head; and sending the positioning information to the microprocessor;
the microprocessor sends the positioning information to the cloud server through the communication module, and the cloud server sends the positioning information to the terminal.
After the worker acquires the alarm information in the first time, the worker needs to arrive at the position of the cable middle head as soon as possible to check and process the environmental information, and the worker can accurately find the cable middle head for alarming by arranging the GPS positioning module, so that the worker can process the dangerous case as soon as possible.
In some embodiments, the monitoring system further comprises a well water pump module, the well water pump module is electrically connected with the power supply module, and the well water pump module is connected with the microprocessor through a wire; in the embodiment, the well submersible pump is preferably selected as the well submersible pump module, the well submersible pump has the characteristic of small radial size, the outer diameter size of the impeller is small, so that the disc friction loss between the outer side of the impeller rotating at high speed and fluid in the work is greatly reduced, the radial size of the water pump is fully utilized, the single-stage lift approaches a large value, the efficiency of the pump is remarkably improved, and the energy-saving effect is good. Good wear resistance, large flow passage and simple operation and application: pumping sand, slurry, fly ash and other names of solid powder particles: the submersible sand pump, the submersible sand pump and the submersible mud pump type submersible sand pump are coaxially submerged in water by a motor and a water pump, and the pump flow-through part is made of high-alloy wear-resistant materials, so that the submersible sand pump has better wear resistance and a large flow-through channel.
When the water level information reaches the preset water drainage water level, the microprocessor controls the water pump module in the well to start the water pump to drain water.
In some embodiments, in the monitoring system of the present invention, the terminal is configured to send a request for setting the preset time interval, the preset temperature information, the preset water level information, and the preset drain water level to the cloud server, and the cloud server controls the microprocessor to perform setting according to the request. By the arrangement, personnel can remotely control the microprocessor through the terminal, and can operate without going to the field, so that the operation is convenient. Meanwhile, personnel can flexibly adjust the preset time interval, the preset temperature information, the preset water level information and the preset drainage water level according to the geographic information and the weather condition of the position of the cable middle head and the working condition of the cable middle head. For example, when the position of the cable middle head is rained recently, the preset time interval is set to be smaller, so that the frequency of sending data information to the cloud server by the microprocessor is higher, and personnel can master the site environment information more quickly. At the moment, the preset water level information and the preset drainage water level can be set to be smaller, so that the monitoring system is prevented from being damaged by rapid rising of the water level after rainfall.
In this embodiment, the terminal is preferably a mobile terminal, so that the personnel can conveniently obtain the environmental information in time and operate the monitoring system in time, for example, turn off the alarm and the like.
The invention provides a method for comprehensively monitoring the underground environment of a cable middle head, which adopts the monitoring system and comprises the following steps:
acquiring current temperature information, water level information and positioning information; comparing the temperature information with preset temperature information, and comparing the water level information with preset water level information;
and when the temperature information is greater than the preset temperature information or the water level information is greater than the preset water level information, sending alarm information and positioning information.
And the alarm information is sent to the terminals of the related personnel in time, so that the personnel have sufficient time to process. In addition, accurate positioning information can enable related personnel to accurately master the position of the middle head of the cable.
In some embodiments, the method comprises:
when the water level information is larger than the preset water level information and larger than the preset drainage water level, starting the water pump to drain water;
and when the water level information is lower than the preset water level information for stopping water drainage and the maintaining time reaches 3min, controlling the water pump to stop water drainage.
The dangerous case is handled in time, prevents that the system from receiving into water's destruction. When the water level drops to the preset water level for stopping drainage, the water pump is controlled to stop drainage, the water pump is prevented from rotating empty, the working safety of the water pump is protected, and meanwhile, the energy-saving effect is achieved.
The system and the method for comprehensively monitoring the underground environment of the cable middle head provided by the invention are described in detail above. The description of the specific embodiments is only intended to facilitate an understanding of the method of the invention and its core ideas. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (9)
1. The utility model provides a first downhole environment integrated monitoring system in middle of cable, is applied to head in the middle of the cable in the pit, its characterized in that, including temperature sensor, level sensor, communication module, microprocessor, cloud ware, power module and terminal:
the temperature sensor is used for monitoring the temperature information of the cable middle head and sending the temperature information to the microprocessor in real time;
the water level sensor is used for monitoring water level information of the cable middle head and sending the water level information to the microprocessor in real time;
the communication module is used for establishing a wireless communication channel between the microprocessor and the cloud server through a GRPS network;
the microprocessor is used for acquiring the temperature information and the water level information and sending the temperature information and the water level information to the cloud server at preset time intervals;
the power supply module is used for supplying power to the temperature sensor, the water level sensor, the communication module and the microprocessor;
and the cloud server is used for storing and analyzing the temperature information and the water level information, and sending alarm information to the terminal when the temperature information is greater than a preset temperature or the water level information is greater than a preset water level.
2. The comprehensive cable intermediate head downhole environment monitoring system according to claim 1, wherein:
the terminal is used for sending a request for acquiring real-time temperature information and water level information to the cloud server;
and the cloud server is used for controlling the microprocessor to set a preset time interval to be 0min according to the request.
3. The comprehensive mid-cable sub-head downhole environment monitoring system according to claim 2, comprising:
the GPS positioning module is used for detecting positioning information of the cable middle head; sending the positioning information to a microprocessor;
the microprocessor sends the positioning information to the cloud server through the communication module, and the cloud server sends the positioning information to the terminal.
4. The comprehensive cable intermediate head downhole environment monitoring system according to claim 3, wherein:
the power module consists of a lithium sub-battery and a power management module connected with the lithium sub-battery.
5. The comprehensive cable intermediate head downhole environment monitoring system according to claim 4, wherein:
the communication module is an NB-IOT wireless communication module.
6. The comprehensive cable intermediate head downhole environment monitoring system according to claim 5, wherein:
the monitoring system also comprises an in-well water pump module, the in-well water pump module is electrically connected with the power supply module, and the in-well water pump module is connected with the microprocessor through a CAN (controller area network) line;
when the water level information reaches the preset water drainage water level, the microprocessor controls the water pump module in the well to start the water pump to drain water.
7. The comprehensive cable intermediate head downhole environment monitoring system according to claim 6, wherein:
the terminal is used for sending a request for setting a preset time interval, preset temperature information, preset water level information and a preset drainage water level to the cloud server, and the cloud server controls the microprocessor to set according to the request.
8. A method for comprehensively monitoring the downhole environment of a middle head of a cable by using the monitoring system of any one of claims 1 to 7, wherein the method comprises the following steps:
acquiring current temperature information, water level information and positioning information; comparing the temperature information with preset temperature information, and comparing the water level information with preset water level information;
and when the temperature information is greater than the preset temperature information or the water level information is greater than the preset water level information, sending alarm information and positioning information.
9. The comprehensive monitoring method for the downhole environment of the middle head of the cable according to claim 7, wherein the method comprises the following steps:
and when the water level information is greater than the preset water level information and greater than the preset water drainage level, starting the water pump to drain water.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117110555A (en) * | 2023-10-24 | 2023-11-24 | 国网安徽省电力有限公司合肥供电公司 | Channel environment monitoring and early warning system for high-voltage power cable construction operation |
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| CN113299038A (en) * | 2021-06-02 | 2021-08-24 | 郑州力通水务有限公司 | Intelligent well lid system |
| CN113405692A (en) * | 2021-06-30 | 2021-09-17 | 国网江苏省电力有限公司徐州供电分公司 | Underground cable temperature measuring device, monitoring system and method |
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| CN117110555B (en) * | 2023-10-24 | 2024-01-19 | 国网安徽省电力有限公司合肥供电公司 | Channel environment monitoring and early warning system for high-voltage power cable construction operation |
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