Communication pipeline full-period damage positioning and monitoring system and method

Abstract

The invention discloses a communication pipeline full-period damage positioning monitoring system and method, and relates to the technical field of pipeline monitoring, and the system comprises a damage auxiliary pipe which is a small-caliber PVC pipe, is laid at the top end of a communication embedded pipe in parallel, and is used for synchronously breaking when a main embedded pipe is damaged by external force; the double wires are arranged at the upper half part in the destruction auxiliary pipe in a penetrating manner; the two ends of the wire are led into the adjacent prefabricated inspection wells and fixed to the inner side of the well wall. A reserved notch is formed in the bottom of a well lid of the prefabricated inspection well; the application of the method fully solves the problems that the method depends on post-maintenance, is lack of a data-based predictive maintenance mechanism, is difficult to realize active risk prevention and control, is high in manpower dependence, is long in professional technician culture period, is high in pipeline detection equipment purchase and maintenance cost, is high in advanced detection equipment price, and is difficult to burden medium and small-sized enterprises. A full-period pipeline damage monitoring technology is researched, a wire is arranged between prefabricated inspection wells, the wire is connected with an NB-LOT ultra-low power consumption transmitter with a solar panel for power supply, a mobile network and a signal transmitter are used for monitoring the running state of a pipeline in real time, the full-period monitoring efficiency of the pipeline is high, operation is easy, and the use cost is low.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of pipeline damage monitoring, and particularly relates to a communication pipeline whole-cycle damage positioning monitoring system and method. BACKGROUND

[0002] At present, in pipeline construction and operation, the management of each stage is disconnected, the design, construction and operation and maintenance stage lack cooperation, the preventive maintenance capability is weak, the traditional method depends on post-maintenance, there is a lack of predictive maintenance mechanism based on data, and it is difficult to realize active risk prevention and control. Human dependence is strong, and the training cycle of professional and technical personnel is long, which further increases the operation cost. At the same time, with the development of Internet technology and optical fiber sensing technology, the current pipeline detection equipment purchase and maintenance cost is high, and advanced detection equipment (such as high-precision sensors, intelligent robots) is expensive, which is difficult for small and medium-sized enterprises to bear. SUMMARY

[0003] The present application aims at at least solving one of the problems existing in the prior art; To this end, the present application provides a communication pipeline whole-cycle damage positioning monitoring system, comprising: a damage auxiliary pipe, which is a small-diameter PVC pipe, is laid in parallel at the top end of a communication pre-buried pipe, and is used to be broken synchronously when the main pre-buried pipe is damaged by external force; a double-conductor wire, which is arranged in the upper half of the inside of the damage auxiliary pipe; the two ends of the conductor wire are introduced into adjacent prefabricated inspection wells, and are fixed to the inner side of the well wall; a reserved slot is arranged at the bottom of the cover of the prefabricated inspection well; a metal rod, which is arranged within a range of 5m from the radius of the prefabricated inspection well, and has a solar panel installed thereon; an intelligent inverter and a storage battery, which are connected with the solar panel through wires; an NB-IOT ultra-low power transmitter, which is powered by the storage battery, has a built-in SIM card and a pre-written unique IP address, supports mobile network access, and together with the conductor wire and the storage battery forms a closed loop, and is used to periodically send a signal carrying the IP address to a pipeline operation and management center; the pipeline operation and management center is used to receive the signal and perform missing analysis, and if a certain IP address does not receive a signal within a preset time, it is determined that the pipeline is damaged.

[0004] Further, the inner diameter of the damage auxiliary pipe is preferably 18mm, and the wall thickness is 1.5mm.

[0005] Further, the conductor wire is a double-core insulated conductor wire, which is fixed to the upper half of the auxiliary pipe, so as to avoid the influence of accumulated water on resistance measurement.

[0006] Further, the depth and width of the reserved slot allow a multimeter pen to be inserted into contact with the end point of the conductor wire.

[0007] Further, the period of the transmitter sending signals is preset by the administrator, preferably once every 24 hours.

[0008] Further, the pipeline operation management center is also used to send a backhaul request signal to the transmitter of the suspected address, and if no response is received within T1 time, it is confirmed that the section of the pipeline is damaged.

[0009] A communication pipeline full-cycle damage positioning monitoring method, comprising the following steps: Lay the damaged auxiliary pipe and the wire; set a detection interface in the inspection well; install a power supply and signal transmission unit; perform signal reception and fault judgment; perform fault positioning and maintenance.

[0010] Further, the fault positioning step comprises: connecting a temporary wire in the inspection well in the suspected fault interval, measuring the resistance in the adjacent inspection well, and if the resistance is extremely large, it is determined that the wire is broken, and the length of the extracted wire is measured to deduce the position of the damage point.

[0011] Further, the extremely small resistance refers to less than 10Ω, and the extremely large resistance refers to tending to infinity.

[0012] Further, when maintaining, a new wire of the same specification is cut off and reinserted into the replaced PVC auxiliary pipe to restore normal operation of the system.

[0013] Compared with the prior art, the beneficial effects of the present application are: The application of the method of the present application fully solves the problems of relying on post-maintenance, lacking a predictive maintenance mechanism based on data, being difficult to achieve active risk prevention and control, being highly dependent on manpower, having a long training cycle for professional and technical personnel, and having high costs of purchasing and maintaining pipeline detection equipment and expensive advanced detection equipment that small and medium-sized enterprises cannot afford. The full-cycle pipeline damage monitoring technology is researched, the wire is arranged between the prefabricated inspection wells, the wire is connected with the NB-LOT ultra-low power transmitter powered by a solar panel, the mobile network and the signal transmitter are used to monitor the pipeline operation state in real time, the pipeline full-cycle monitoring efficiency is high, the operation is simple, and the use cost is low. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 The system structure diagram of the present application; Fig. 2 The method flowchart of the present application. DETAILED DESCRIPTION

[0015] The technical solutions of the present application will be clearly and completely described below in combination with the embodiments. Apparently, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0016] Please refer to Figs. 1-2 The present application provides a communication pipeline full-cycle breakage positioning monitoring system. As an embodiment of the present application, it specifically comprises: A damage auxiliary pipe is arranged at the upper end of the communication pre-buried pipe wire, which is damaged at the same time when the pre-buried communication pipeline is damaged. The damage auxiliary pipe is a small-caliber PVC pipe. The inner diameter is less than 6 times of the wire in general cases, and the cross-sectional area of the pre-buried pipe is greater than 40% of the total area of the wire. The inner diameter of the PVC pre-buried pipe is generally 2.5 mm 2 The wire, the PVC pre-buried pipe has an inner diameter of 16 mm.

[0017] A double wire is arranged in the damage auxiliary pipe, which is located in the upper half of the damage auxiliary pipe to avoid the influence of rainwater on resistance measurement. The wire is inserted into the adjacent precast inspection well 1, and the wire is fixed on the well wall of the precast inspection well 1 to ensure that the wire is directly disconnected when the wire between the precast inspection wells 1 is damaged, and is not pulled out. A reserved notch 201 is arranged at the bottom of the well cover 2 of the precast inspection well 1, so that the resistance of the wire can be checked with a multimeter without opening the well cover. A metal rod 3 is arranged within a preset radius range around the precast inspection well 1, a solar panel 4 is installed on the metal rod 3, the solar panel 4 is connected with an intelligent inverter 5 and a storage battery 6 in sequence through wires, Further comprising a transmitter 7, the transmitter 7 is an NB-LOT ultra-low power transmitter, the transmitter 7 has a connection with a mobile network by taking the storage battery 6 as a power supply, and is used for transmitting a signal with an IP address to a pipeline operation and management center periodically, the period being preset by an administrator; the storage battery 6 is also connected with the wire and the transmitter 7 in the precast inspection well 1, forming a closed circuit. The pipeline operation and management center is used for missing analysis on the received signal, and the missing analysis is specifically as follows: All signals are obtained, the IP address in the signal is automatically extracted, and the IP address is matched with an address library. There are several backup address libraries in the address library, containing IP addresses of all communication pre-buried pipes. If any correct IP address is matched, the IP address is marked as a suspected address. At this time, the pipeline operation and management center transmits a return signal to the transmitter corresponding to the suspected address. If there is no any signal return within T1 time, it indicates that the communication pre-buried pipe corresponding to the suspected address is damaged.

[0018] In normal operation, the NB-LOT ultra-low power transmitter transmits signals with IP address to the pipeline operation center, and the operation center determines that the pipeline is running normally by checking the signals of IP address; In the case of damaged lead between prefabricated inspection wells, the closed loop is in open circuit state, the NB-LOT ultra-low power transmitter cannot transmit signals, the operation center loses the signals of the IP address, determines that the pipeline is damaged, and generates a maintenance work order to organize maintenance.

[0019] The specific maintenance method is: between adjacent prefabricated inspection wells, a temporary lead is set up on one side of the prefabricated inspection well, and the other prefabricated inspection well detects the resistance by multimeter. If the multimeter shows small resistance, it is determined that the lead between the adjacent prefabricated inspection wells is not damaged. If the multimeter shows large resistance, it is determined that the lead between the adjacent prefabricated inspection wells is damaged. The damaged section of the lead is pulled out of the PVC pipe, and the specific damage position of the pipeline damage section is determined by measuring the length of the lead.

[0020] The damaged section of the lead is pulled out of the PVC pipe, and the specific damage position of the pipeline damage section is determined by measuring the length of the lead.

[0021] Of course, as the second embodiment of the present application, the embodiment provides a communication pipeline whole cycle damage positioning monitoring method, which comprises the following steps: Step one: laying of damage auxiliary pipe and lead A small-diameter PVC pipe is laid in parallel at the top of the communication pre-buried pipe as a damage auxiliary pipe, and its inner diameter is preferably 16mm-20mm and the wall thickness is not less than 1.5mm. The auxiliary pipe is laid synchronously with the main pre-buried pipe and is broken together when the main pipeline is damaged by external force; a double-core insulated lead is arranged in the auxiliary pipe, and the lead is fixed to the upper half of the auxiliary pipe to avoid the accumulation of rainwater affecting resistance measurement. The two ends of the lead are introduced into two adjacent prefabricated inspection wells 1 respectively, and are fixed to the inner side of the well wall by buckles or straps to ensure that the lead can be directly pulled off when the pipeline is damaged rather than being pulled out; Step two: inspection well structure and detection interface A reserved slot 201 is formed at the bottom of the well cover of each prefabricated inspection well 1, and the depth and width of the slot are determined according to the standard of allowing the multimeter pen to be inserted into contact with the lead end point. The two ends of the lead are reserved for detection interface in the well, and the insulating layer is removed at the interface to expose the metal conductor, facilitating resistance measurement.

[0022] Step three: power supply and signal transmitting unit A metal pole 3 is arranged within a radius of 5 m around the prefabricated inspection well 1, and a solar panel 4 is installed on the pole; the solar panel is connected to an intelligent inverter 5 and a storage battery 6 in the well through waterproof wires; the storage battery supplies power to an NB-IOT ultra-low-power transmitter 7, the transmitter is provided with a SIM card, supports mobile network access, and is pre-written with a unique IP address. The transmitter 7 and the wire in the well and the storage battery 6 together form a closed loop. In the normal operating state, the loop is turned on, and the transmitter can periodically send a heartbeat signal to the pipeline operation management center every 24 hours, and the signal carries its IP address.

[0023] Step four: signal processing and fault judgment method The pipeline operation management center deploys a signal receiving and processing platform, and performs the following steps: Signal receiving and address matching: the platform receives signals from all transmitters, automatically analyzes the IP addresses in the signals, and matches them with a pre-stored address library; the address library contains the IP addresses of all normal transmitters; If an IP address does not receive a signal within a predetermined time window, it is marked as a “suspected address”.

[0024] Active confirmation mechanism: the platform sends a backhaul request signal to the transmitter corresponding to the suspected address; if no response is received within T1 time, it is determined that the pipeline has been damaged.

[0025] Step five: fault location and repair method When the system determines that a section of the pipeline is damaged, the following steps are taken for accurate positioning and repair: Temporary wire lapping: in a prefabricated inspection well in the suspected fault interval, temporarily connect the two endpoints of the original wire with a temporary wire to form a temporary loop.

[0026] Resistance detection and judgment: in adjacent inspection wells, measure the resistance value of the wire end point with a multimeter: If the resistance value is very small, such as less than 4Ω, it indicates that the section of the wire has not been broken, and the fault may be located in other sections; If the resistance value is very large, such as tending to infinity, it is determined that the section of the wire has been broken.

[0027] Damage point positioning: the broken wire is pulled out of the damaged auxiliary pipe, and the length of the pulled-out wire is measured, which can accurately deduce the distance of the damage point from the inspection well.

[0028] Wire replacement: a new wire of the same specification is cut and reinserted into the replaced PVC auxiliary pipe to restore normal operation of the system.

[0029] The above examples are only used to illustrate the technical method of the present application but not limit the present application. Although the present application is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present application can be modified or equivalently replaced without departing from the spirit and scope of the technical method of the present application.

Claims

1. A full-cycle damage location and monitoring system for communication pipelines, characterized in that, include: The auxiliary pipe is a small-diameter PVC pipe that is laid parallel to the top of the communication pre-embedded pipe and is used to break simultaneously when the main pre-embedded pipe is damaged by external force. Two wires are inserted into the upper part of the interior of the damaged auxiliary pipe; The two ends of the conductor are respectively introduced into the adjacent prefabricated inspection well and fixed to the inner side of the well wall; The bottom of the prefabricated inspection well cover is provided with a reserved slot; A metal pole is installed within a 5m radius around the prefabricated inspection well, and solar panels are mounted on it. The smart inverter and storage battery are connected to the solar panels via wires. The NB-IoT ultra-low power transmitter is powered by the storage battery, has a built-in SIM card and a pre-written unique IP address, supports mobile network access, and together with the wire and storage battery, forms a closed loop for periodically sending signals carrying IP addresses to the pipeline operation and management center. The pipeline operation and management center is used to receive signals and perform omission analysis. If an IP address does not receive a signal within a preset time, it is determined that the pipeline segment is damaged.

2. The communication pipeline full-cycle damage location and monitoring system according to claim 1, characterized in that, The inner diameter of the auxiliary tube is preferably 18 mm, and the wall thickness is 1.5 mm.

3. The communication pipeline full-cycle damage location and monitoring system according to claim 1, characterized in that, The conductor is a double-core insulated conductor, fixed inside the upper part of the auxiliary pipe to prevent water accumulation from affecting the resistance measurement.

4. The communication pipeline full-cycle damage location and monitoring system according to claim 1, characterized in that, The depth and width of the reserved slot allow the multimeter probes to be inserted into the contact wire endpoints.

5. The communication pipeline full-cycle damage location and monitoring system according to claim 1, characterized in that, The frequency of the transmitter's signal transmission is preset by the administrator, preferably once every 24 hours.

6. The communication pipeline full-cycle damage location and monitoring system according to claim 1, characterized in that, The pipeline operation and management center is also used to send a feedback request signal to the transmitter at the suspected address. If no response is received within T1 time, the pipeline section is confirmed to be damaged.

7. A method for locating and monitoring damage to communication pipelines throughout their entire lifecycle, characterized in that, Includes the following steps: Deploy damaged auxiliary pipes and wires; install detection interfaces inside inspection wells; install power supply and signal transmission units; perform signal reception and fault diagnosis; and carry out fault location and repair.

8. The method for locating and monitoring damage to communication pipelines throughout their entire lifecycle, as described in claim 7, is characterized in that... The fault location steps include: laying a temporary wire in the inspection well in the suspected fault area, measuring the resistance in the adjacent inspection well, and determining that the wire is broken if the resistance is extremely high. The location of the break point is deduced by measuring the length of the pulled-out wire.

9. The method for locating and monitoring damage to communication pipelines throughout their entire lifecycle, as described in claim 8, is characterized in that... Minimal resistance means less than 10Ω, while maximum resistance means approaching infinity.

10. A method for locating and monitoring damage to communication pipelines throughout their entire lifecycle, as described in claim 7, is characterized in that... During maintenance, a new wire of the same specification was cut and re-inserted into the replaced PVC conduit to restore normal system operation.

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