Cable path identification comprehensive tester

Abstract

The utility model discloses a comprehensive tester for cable path identification, and relates to the technical field of cable path identification. Comprising a receiver and a transmitter. The receiver comprises a display control instrument and a machine body, the display control instrument is vertically connected with the upper end of the machine body, and the bottom end of the machine body is rotatably connected with a first pulley; the transmitter comprises a box body and a box cover, the box body is hinged to the box cover, the bottom of the box body is rotatably connected with a second pulley, the side wall of the box body is rotatably connected with a telescopic handle, and the side wall of the box body is connected with a clamping piece used for fixing the telescopic handle in a contracted state. When the receiver and the transmitter are used, an operator can drag the receiver and the transmitter to slide on the ground, the operator does not need to carry the receiver and the transmitter, and the labor intensity of the operator is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable path identification technical field, especially in kind of cable path identification comprehensive tester. BACKGROUND

[0002] Cable path identification comprehensive tester is a kind of special equipment for detecting and positioning underground cable, it integrates multiple functions, including but not limited to cable path tracking, fault location (such as broken line, short circuit, ground fault etc.), cable depth measurement and signal emission etc.Functions.This kind of instrument is widely used in power, communication etc.Industry, help technical personnel accurately find the position of buried cable without damaging ground, and can diagnose potential problems.

[0003] Mainly includes: transmitter and receiver;Transmitter: responsible for generating and sending test signal to cable, can be connected with cable by direct connection or inductive coupling way.Receiver: capture signal from cable, and analyze signal intensity and direction by built-in algorithm, to determine the position of cable, path and possible fault point.

[0004] In prior art, inductive method is used to detect, and transmitter uses inductive mode to emit signal to cooperate, and two operators are needed, one operator operates transmitter, and the other operator operates receiver, transmitter and receiver are perpendicular to pipeline, two people are spaced apart about 10m, and simultaneously parallelly move along the direction perpendicular to pipeline, when transmitter passes pipeline, signal is inducted to pipeline, and receiver receives signal.

[0005] When detecting by the above method in prior art, operator needs to repeatedly carry transmitter and receiver, and the labor intensity of operator is increased. UTILITY MODEL CONTENT

[0006] In order to solve the prior art problems, the utility model provides a kind of cable path identification comprehensive tester, including: receiver and transmitter;

[0007] The receiver includes display control instrument and body, the display control instrument is vertically connected with the upper end of the body, and the bottom of the body is rotatably connected with first pulley;

[0008] The transmitter includes: box and lid, the box and the lid are hinged, the bottom of the box is rotatably connected with second pulley, the sidewall of the box is rotatably connected with telescopic handle, and the sidewall of the box is connected with clamping piece, for fixing telescopic handle in retracted state.

[0009] Further, recess is formed in the sidewall of the box;

[0010] The telescopic handle comprises a fixed rod fixed in the groove;

[0011] Two rotating rings are sleeved on the fixed rod;

[0012] Two telescopic rods, one end of each of which is connected to the side wall of the two rotating rings respectively;

[0013] A pulling rod is connected between the other ends of the two telescopic rods;

[0014] The clamping piece is used for clamping the pulling rod.

[0015] Further, the clamping piece is an elastic steel sheet with a ring-shaped cross section, the side wall of which is connected to the inner wall of the groove, and the side wall of the clamping piece away from the groove is provided with an opening, and the two sides of the opening of the clamping piece are S-shaped structures.

[0016] Further, the width of the opening is smaller than the diameter of the pulling rod.

[0017] Further, the top end of the machine body is connected with a U-shaped handle.

[0018] The beneficial effects of the technical scheme provided by the utility model are that the first pulley is arranged at the bottom of the machine body of the receiver, the second pulley is connected to the bottom of the box body of the transmitter, the telescopic handle is connected to the side wall of the transmitter box body, and the operator can drag the receiver and the transmitter to make them slide on the ground during use, so that the operator does not need to carry them, and the labor intensity of the operator is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structural schematic view of a receiver provided by the utility model;

[0020] Figure 2 is a structural schematic view of a transmitter provided by the utility model;

[0021] Figure 3 is a structural schematic view of another transmitter provided by the utility model;

[0022] Figure 4 is a structural schematic view of a groove provided by the utility model;

[0023] Figure 5 is a use state diagram of a cable path recognition comprehensive tester provided by the utility model;

[0024] Figure 6 is a principle block diagram of a receiver provided by the utility model;

[0025] Figure 7 is a principle block diagram of a transmitter provided by the utility model.

[0026] Label: 1-receiver; 2-transmitter; 3-display control instrument; 4-airframe; 5-first pulley; 6-box; 7-box cover; 8-second pulley; 9-telescopic handle; 10-groove; 11-fixing rod; 12-rotary ring; 13-telescopic rod; 14-pulling rod; 15-clamping piece; 16-liquid crystal display screen; 17-key; 18-USB port; 19-display screen; 20-key module; 21-signal output port; 22-U-shaped handle. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, 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 of ordinary skill in the art without creative work fall within the scope of the present application.

[0028] To make the purpose, technical solutions and advantages of the present application clearer, the embodiments of the present application will be described in further detail below with reference to the drawings.

[0029] It should be noted that, in the present embodiment, the directions or position relationships indicated by "bottom", "top", "left", "right" and the like are based on the directions or position relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and thus cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only used for distinguishing description, and cannot be understood as indicating or implying relative importance.

[0030] It should also be noted that, in the present embodiment, unless otherwise explicitly specified and limited, the terms "set", "connected" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected, can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0031] Reference is made to Figures 1-7The receiver 1 comprises a display control device 3 and a body 4, the display control device 3 is vertically connected with the upper end of the body 4, and the display control device is internally provided with a central processing unit, a mixer / filter / amplifier and an A / D converter; the mixer / filter / amplifier is electrically connected with the A / D converter, the A / D converter is electrically connected with the central processing unit, the display control device 3 is externally provided with a liquid crystal display screen 16 and a button 17, the liquid crystal display screen 16 and the button 17 are electrically connected with the central processing unit, and the body 4 is provided with different connection ports, a first horizontal antenna, a second horizontal antenna, a first vertical antenna, a second vertical antenna and a compass antenna are electrically connected with the mixer / filter / amplifier through the different connection ports.

[0032] The model of the central processing unit can be Cortex-A53, the button 17 comprises a "▲" and a "▼", when starting detection, the signal amplitude data is observed, the dB value is adjusted through the "▲" or "▼" key, the data is ensured to be between 500-900 for being optimal, and the subsequent detection is sequentially performed under the condition that the dB value is basically unchanged; when the receiver approaches above the pipeline, the liquid crystal display screen 16 can directly display the pipeline position below the receiver; the or arrow on the two sides of the simulated pipeline prompts to move right or left; when the receiver is just above the pipeline, the left and right arrows appear at the same time, and thus the pipeline can be quickly tracked.

[0033] The "▲" or "▼" key is pressed for 2 seconds, and the classic compass mode is switched to, when the receiver approaches above the pipeline, the compass of the liquid crystal display screen 16 can directly display the pipeline direction below the receiver, and the arrow in the center points to the signal direction of the cable; when the tester faces the far end of the cable, no matter how the direction of the receiver changes, the arrow always points to the end of the cable; when the tester faces away from the far end of the cable, the arrow becomes and still points to the end of the cable, the or arrow on the two sides of the central arrow prompts to move right or left; when the receiver is just above the pipeline, the left and right arrows appear at the same time, and thus the pipeline can be quickly tracked.

[0034] The button 17 further comprises an on-off key, an "i" key and an "f" key, the on-off key is used for turning on and off the machine; the "i" key, the setting interface can be exited by pressing the "i" key; the corresponding output frequency is selected through the button "f".

[0035] It should be noted that the horizontal antenna refers to an antenna whose main axis direction is parallel to the ground. In cable detection, the horizontal antenna is mainly used to receive electromagnetic fields propagating parallel to the ground. When using a horizontal antenna for detection, it is easier to find the direction of the cable, because the magnetic field generated by the cable is strongest directly above it, and the horizontal antenna can effectively capture the signal strength changes in this direction, thus helping the operator to determine the direction of the cable. The vertical antenna refers to an antenna whose main axis direction is perpendicular to the ground. In cable detection, the vertical antenna is mainly used to receive electromagnetic fields propagating perpendicular to the ground. The vertical antenna is particularly useful for determining the exact location of the cable, because when the receiver is directly above the cable, the signal strength received by the vertical antenna will reach a maximum value. Therefore, by moving the receiver and observing the changes in signal strength, the exact location of the cable can be accurately located. In actual operation, the horizontal antenna and the vertical antenna are often used in combination to achieve the best detection effect. First, the horizontal antenna can be used to roughly determine the path of the cable. Then, switch to the vertical antenna and move the receiver along this path until the strongest signal point is found, which is the exact location of the cable. The compass antenna, also known as a magnetometer or electronic compass antenna, is mainly used to detect the direction of the Earth's magnetic field. This antenna plays a key role in cable detection receivers, helping operators to determine direction and orientation, thus more accurately locating underground cables or other targets.

[0036] The cable path identification signal receiver is provided with two horizontal antennas and two vertical antennas, namely a first horizontal antenna, a second horizontal antenna, a first vertical antenna, and a second vertical antenna. The two antennas can receive signals respectively. By comparing the signal strengths received by the two antennas, the weak signal can be more accurately identified, and the overall sensitivity can be improved. By comparing the signals received by the two antennas, background noise can be better identified and filtered out, thus improving the signal-to-noise ratio.

[0037] Secondly, the model of the first horizontal antenna and the second horizontal antenna can be RD8000 series antenna, the model of the first vertical antenna and the second vertical antenna can be vLoc3-Pro series antenna, and the model of the compass antenna can be HMC5883L; the mixer can be TRF3703, which is used to convert the high-frequency signals collected by the antenna into lower-frequency intermediate-frequency signals for subsequent processing and amplification; the filter can be INA849, which only allows signals within a specific frequency range to pass through, thereby removing interference of other frequencies; the amplifier model can be LMH6629, which is used to amplify the intermediate-frequency signals to a high enough level for further processing and analysis; the A / D converter model can be ADS1256A / D, which, when used with the mixer, filter and amplifier, converts the high-frequency signals received during the mixing stage into intermediate-frequency signals. The A / D converter converts these intermediate-frequency signals into digital signals for further digital filtering and processing, and the filter can more accurately remove unwanted frequency components to improve signal purity, and the amplifier is preferably amplified without introducing additional noise.

[0038] The display control instrument is also provided with a lithium battery pack, which is electrically connected with the central processor to supply power to each component. In addition, the display control instrument is also provided with a Type_C USB port 18. When charging is needed, the plug of the charger is connected to the Type_C USB interface, and the AC plug of the charger is connected to the AC 220V / 110V socket.

[0039] It also includes a loudspeaker electrically connected with the central processor, which is mainly used to provide audio output to help the operator locate the position of the underground cable. When the receiver approaches the target cable, it will receive the electromagnetic signals emitted from the cable. As the distance changes, the signal strength will also change. By converting this change into an audible sound signal, the operator can determine the distance from the target object according to the volume of the sound.

[0040] The transmitter 2 includes a box body 6 and a box cover 7. The power supply module, signal transmitter module and central processor module of the transmitter are connected in the box body 1 and packaged through a connecting plate. The display screen 19 and the key module 20 are installed on the surface of the connecting plate, and the power supply module, signal transmitter module, display screen 19 and key module 20 are electrically connected with the central processor. The other end of the top of the box body 6 is connected with the other end of the box cover 7 through a lock.

[0041] It should be noted that the power module is a lithium battery, and the surface of the connecting plate is also provided with a Type_C USB interface, which is electrically connected with the power module. When charging is needed, the plug of the charger is connected with the Type_C USB interface, and the AC plug of the charger is connected with the AC 220V / 110V socket; the signal transmitter module comprises an oscillation circuit, a signal conditioning circuit and a power amplifier circuit, the signal conditioning circuit is electrically connected with the oscillation circuit and the power amplifier circuit, the power amplifier circuit is electrically connected with the signal output port 21, and the signal output port 21 is used to be connected with the coupling clamp or directly connected with the test wire; the key module 20 comprises a power on / off key, a frequency key, a power key and a confirmation key, the frequency key is a transmission frequency switching key, the on / off key is directly connected by default at 3.2 kHz, the coupling method is by default at 3.2 kHz, the induction method is by default at 32.7 kHz, and the output frequency is switched in turn by pressing the key again, wherein the frequency of the direct connection method and the coupling method is: 577 Hz, 640 Hz, 1.28 kHz, 2.56 kHz, 3.2 kHz, 4.09 kHz, 8.19 kHz, 10.2 kHz, 32.7 kHz, 66 kHz, 82 kHz and 197 kHz; the power key is an output power selection key, and the output power is switched in turn from “small---large” by pressing the key; the confirmation key is controlled to output signals by pressing for about 2 seconds; the setting interface is entered by pressing twice in succession; in the setting interface, the parameters can be set or exited according to the prompt below the display screen 19; and the model of the central processing module is an STM32 series.

[0042] It should be further noted that the transmitter 2 is used in cooperation with the receiver 1, and the basic working principle is that electromagnetic waves are generated by the transmitter, and the signals are transmitted to the underground metal pipeline to be detected, the metal pipeline induces electromagnetic waves, and the induced current is generated on the surface of the cable, and the induced current propagates along the metal cable to a distance, and in the propagation process of the current, electromagnetic waves are radiated to the ground through the cable, so that when the receiver is detected on the ground, the electromagnetic wave signal is received on the ground directly above the underground metal pipeline, and the position and direction of the underground metal pipeline can be determined by the change of the received signal strength.

[0043] Referring to Figure 5In the induction method detection needs to use the induction method to cooperate the transmitter to send the signal, before detection, first determine the area to be searched and the possible direction of the pipeline through the area, the transmitter is in the induction method mode, and set the frequency of the transmitter and the receiver to be consistent. One person operates the transmitter, and the other person operates the receiver, the transmitter and the receiver are perpendicular to the pipeline, the two people are about 10 m apart, and simultaneously move along the direction perpendicular to the pipeline, when the transmitter passes through the pipeline, the signal will be inducted to the pipeline, the receiver will receive the signal, and the response of the receiver is observed; after detecting in one direction, exchange the positions of the transmitter and the receiver, and detect in the reverse direction again, all possible directions need to be detected, and after all the positions of the pipelines are marked, the transmitter is placed above each pipeline in turn, and the receiver tracks each pipeline until leaving the area to be detected.

[0044] In order to reduce the labor intensity of the staff during detection, two first pulleys 5 are rotatably connected to the bottom end of the body 4 of the receiver 1, and a U-shaped handle 22 is connected to the top and bottom ends of the body 4; four second pulleys 8 are rotatably connected to the bottom of the box body 6 of the transmitter 2, and the connection modes of the first pulleys 5 and the body 4 and the connection modes of the second pulleys 8 and the box body 6 can be the same as the connection mode of the pulleys at the bottom of the luggage case in the prior art.

[0045] In addition, a recess 10 is formed in the front wall of the box body 6, a telescopic handle 9 is connected in the recess 10, the telescopic handle 9 comprises a fixed rod 11, the two ends of the fixed rod 11 are fixedly connected to the opposite two inner walls of the recess 10, the fixed rod 11 is sleeved with two rotating rings 12, the rotating rings 12 can rotate on the fixed rod 11, one telescopic rod 13 is connected to the side wall of each rotating ring 12, the other ends of the two telescopic rods 13 are connected with a pulling rod 14, the pulling rod 14 is fixed through a clamping piece on the inner wall of the recess 10, the clamping piece 15 is an elastic steel sheet with a ring-shaped cross section, the side wall is connected with the inner wall of the recess 10, an opening is formed in the side wall of the clamping piece 15 away from the recess 10, and the two sides of the opening of the clamping piece 15 are in S-shaped structure, and the width of the opening is smaller than the diameter of the pulling rod 14.

[0046] When the above induction method is used for detection, one operator can move the receiver 1 by pulling the U-shaped handle 22; the other operator can take out the pulling rod 14 from the clamping piece, stretch the telescopic rod 13 to a suitable length, and pull the transmitter 2 on the ground to move, after detection, the staff can contract the telescopic rod 13, turn the pulling rod 14 inward, and make it enter the clamping piece.

[0047] The above only describes the preferred embodiments of the present application, and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A cable path identification integrated tester, characterized by, Including: A receiver (1) and a transmitter (2); The receiver (1) comprises a display control instrument (3) and a fuselage (4), the display control instrument (3) is vertically connected with the upper end of the fuselage (4), the bottom end of the fuselage (4) is rotatably connected with a first pulley (5); The transmitter (2) comprises a box body (6) and a box cover (7), the box body (6) and the box cover (7) are hinged, the bottom of the box body (6) is rotatably connected with a second pulley (8), the side wall of the box body (6) is rotatably connected with a telescopic handle (9), the side wall of the box body (6) is connected with a clamping piece for fixing the telescopic handle (9) in the retracted state.

2. The cable path identification integrator of claim 1, wherein, The side wall of the box body (6) is provided with a groove (10); The telescopic handle (9) comprises a fixed rod (11) fixed in the groove (10); Two rotating rings (12) are sleeved on the fixed rod (11); Two telescopic rods (13), one end of each of which is connected to the side wall of the two rotating rings (12); A pull rod (14) is connected between the other ends of the two telescopic rods (13); The clamping piece is used for clamping the pull rod (14).

3. The cable path identification integrator test set of claim 2, wherein, The clamping piece (15) is an elastic steel sheet with a ring-shaped cross section, the side wall is connected with the inner wall of the groove (10), the side wall away from the groove (10) is provided with an opening, and the two sides of the opening of the clamping piece (15) are S-shaped structures.

4. The cable path identification integrator test set of claim 3, wherein, The width of the opening is less than the diameter of the pull rod (14).

5. The cable path identification integrator test set of claim 1, wherein, The top end of the fuselage is connected with a U-shaped handle (22).

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