Non-contact detection device and method for electric wires embedded in wall body

Abstract

The invention discloses a non-contact detection device and method for electric wires embedded in a wall body, and belongs to the technical field of electric wire detection. The detection device comprises an irradiation source, an optical mechanical scanning device, a millimeter wave detector, a signal processing circuit and an image display module, wherein the irradiation source comprises a noiseirradiation source and a microwave emitting antenna; the optical mechanical scanning device is used for carrying out two-dimensional beam scanning on the wall body to obtain millimeter waves emitted by the electric wires embedded in the wall body; the millimeter wave detector performs amplification and detection processing on the received millimeter waves and outputs the processed millimeter wavesto the signal processing circuit for performing processing; and a periodic maximum equiamplitude signal is obtained, so that position information and / or trend information of the electric wires is obtained and is displayed in the image display module. The invention further provides the detection method, which comprises a passive detection mode and / or an active detection mode. According to the detection device and method, the electrified and non-electrified electric wires embedded in the wall body can be detected in a non-contact mode.

Description

technical field [0001] The invention belongs to the technical field of building structure detection, and in particular relates to a non-contact detection device and method for electric wires buried in walls. Background technique [0002] It is generally believed that the microwave frequency range is between 300MHz and 300GHz, and the millimeter wave frequency range is between 30 and 300GHz. Both of them can have good penetration on wall materials such as concrete, wood, stone, ceramics, and artificial decorative panels. [0003] In building decoration, if there is no water and electricity trend map, the wires buried in the wall often have a certain impact on the construction, and even cause accidents, causing personal injury and property loss. If effective non-destructive and non-contact detection can be carried out before construction to find out the layout of the wires in the wall, and even the layout of embedded equipment such as water pipes and metal steel bars, it can e...

AI Technical Summary

Problems solved by technology

[0009] When the wires inside the wall are not charged, since the physical temperature of the metal wires and the skin is consistent with the environment of the wall, the millimeter wave detector cannot detect the wires at this time

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