Underground net pipeline test method based on big dipper positioning

A Beidou positioning and testing method technology, applied in pipeline systems, mechanical equipment, gas/liquid distribution and storage, etc., can solve the problems of inconvenient maintenance by managers, reduced sensing speed and sensing effect, and danger, and reduce pipeline maintenance costs. Effect

Inactive Publication Date: 2015-06-17
巫立斌
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Underground pipelines include cables, heating pipes, water supply pipes, gas pipes, etc. Since they are buried underground, once a rupture occurs, they cannot be located immediately, which brings inconvenience to the maintenance of the management personnel.
What's more, it can cause more serious danger after being unable to locate immediately, resulting in the loss of personnel and property
Underground pipelines live in the dark and dark underground for a long time. Even if a leak occurs, it is

Method used

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  • Underground net pipeline test method based on big dipper positioning
  • Underground net pipeline test method based on big dipper positioning
  • Underground net pipeline test method based on big dipper positioning

Examples

Experimental program
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Embodiment 2

[0056] refer to Figure 4 As shown, this embodiment is basically the same as Embodiment 1, except that every n ring-shaped strained thin films 2 are connected in parallel through wires 10 to form a strained thin film group B. The equivalent circuit is also the same as that of the first embodiment. The equivalent resistance of the strained film group B is Ri, and this equivalent circuit is connected to the b terminal of the rectifier circuit 5. When the pipeline 1 is broken or slightly deformed, the corresponding annular strained film 2 is slightly deformed or broken, so that the strain The equivalent resistance Ri of film group B changes. At this time, the resistance value is sent to the main control circuit 8 after being passed through the rectification circuit 5, the filter circuit 6, and the A / D conversion circuit 7. After monitoring the corresponding resistance value, it can be obtained The equivalent resistance value of which strained film group B has changed, and the ca...

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PUM

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Abstract

The invention relates to the technical field of underground pipeline measurement, and discloses an underground net pipeline test system based on big dipper positioning. The method comprises the steps that N annular strain films are uniformly arranged on the outer surface of a pipeline in a pasted manner, wherein N is greater than or equal to 2; a waterproof film is arranged on the outer surface of each annular strain film; insulation films are arranged between every two adjacent annular strain films in a pasted manner; every n annular strain films are mutually connected in series or in parallel by lead wires to form a strain film group; n sets of rectifying circuits, filter circuits, A/D conversion circuits, master control circuits and big dipper positioning modules are connected sequentially to form operational circuits; each strain film group is connected with operational circuit; and all the operational circuits are in communication with a backend database and a monitoring center by a wireless communication network, and n is greater than or equal to 1 and less than or equal to N. According to the system, an equivalent circuit is designed, and the position of a fault point is detected accordingly.

Description

technical field [0001] The invention relates to the technical field of underground pipeline measurement, in particular to a method for testing underground pipelines based on Beidou positioning. Background technique [0002] With the development of urban construction, the scale and types of underground pipeline distribution are increasing dramatically. Underground pipelines include cables, heating pipelines, water supply pipelines, gas pipelines, etc., because they are buried underground, once they break, they cannot be located immediately, which brings inconvenience to the maintenance of management personnel. What's more, it can cause more serious danger after being unable to locate immediately, resulting in the loss of personnel and property. Underground pipelines live in the dark and dark underground for a long time. Even if a leak occurs, it is mostly sensed based on the sensor measuring the amount of the leaking object. In consideration of cost, the sensors are set at a...

Claims

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Application Information

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IPC IPC(8): F17D5/06
Inventor 巫立斌
Owner 巫立斌
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