CN210604999U

CN210604999U - Gas PE surveys positioning device

Info

Publication number: CN210604999U
Application number: CN201820875353.XU
Authority: CN
Inventors: 高建立
Original assignee: Xi'an Jietong Zhichuang Instrument Equipment Co ltd
Current assignee: Xi'an Jietong Zhichuang Instrument Equipment Co ltd
Priority date: 2018-06-08
Filing date: 2018-06-08
Publication date: 2020-05-22
Anticipated expiration: 2028-06-08

Abstract

A gas PE detection positioning device relates to the field of underground pipe network detection, in particular to the field of natural gas nonmetal PE pipeline detection. The vibration transmitter is connected with the vibrator through a driving cable, the vibrator is connected with the quick connector, and the quick connector is arranged on the pipeline; the vibration pickup is connected with the hand and the Bluetooth wireless earphone and is placed on the ground near the pipeline. After the technical scheme is adopted, the utility model discloses beneficial effect does: the propagation distance is obviously improved, the influence of subjective factors on the measurement result is overcome, the signal receiving sensitivity is greatly improved, and the identification degree of a modulation signal is also greatly enhanced. The sound that makes bluetooth wireless earphone obtain is pure noiselessness, has reduced the stimulation and the harm of external noise to people's ear by a wide margin.

Description

Gas PE surveys positioning device

Technical Field

The utility model relates to a field is surveyed to underground pipe network, the nonmetal PE pipeline of concretely relates to natural gas surveys relevant field.

Background

The nonmetal pipeline is widely applied to urban pipe network construction, but certain technical difficulty still exists in the detection of underground nonmetal pipelines at present, and as the nonmetal pipeline is non-conductive, non-magnetic and basically insulated, a common metal pipeline detector cannot detect the underground nonmetal pipeline, so that great difficulty is brought to determining the position and the burial depth of the underground nonmetal pipeline, avoiding damage caused by construction excavation, managing and maintaining the safety of a pipe network and the like. How to probe the non-metal pipeline quickly, accurately and conveniently becomes a problem to be solved urgently.

Currently, the known detection means for the non-metal pipeline mainly include active detection methods such as ground penetrating radar and ultrasonic detection, and intervention detection methods such as vibration sound wave and knocking.

The principle of the intrusive detection method is that a specific sound wave signal is transmitted into a detected non-metal pipeline through a transmitting device, and the sound wave reaches the ground surface through media such as pipe walls, soil and the like while being transmitted along the non-metal pipeline. Signals are picked up on the ground through receiving devices such as a road listening instrument and a sound wave receiver, the signals enter a monitoring earphone after being amplified and filtered, and operators judge the position of the underground nonmetal pipeline according to work experience through sound listening identification. The scheme has the advantages that signals transmitted in the nonmetal pipeline have relatively stable phase-frequency characteristics, so that the detection result is accurate, the detection distance is long, the identification degree of a detected object in a pipeline parallel or staggered environment is high, and the influence of other pipelines is not easily caused.

The intrusive inspection method is a widely accepted method of inspecting non-metallic pipelines. The conventional intrusive measurement method adopts a fixed frequency or an alternate frequency as a transmitting signal, a road listening instrument as receiving equipment, and the position of a measured target is determined through earphone monitoring. This method has the following disadvantages: 1. the transmitted signal is simple, is easily influenced by external same frequency interference and environmental background noise, and is easy to generate misjudgment; 2. the received signal is subjectively judged through the hearing of an operator, and is easily influenced by subjective factors to generate misjudgment or misjudgment; the hearing loss and noise wave impact are easily formed, and the physical and psychological health of operators is seriously harmed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's defect and not enough, provide a gas PE surveys positioning device, it carries out pulse width modulation to the emission source, improves the degree of discernment of signal to promote signal sensitivity and resolution ratio and restrained noise and same frequency interference through super narrow band filtering.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the device comprises a vibration transmitter 1, a vibrator 2, a vibration pickup 3, a hand 4, a Bluetooth wireless earphone 5, a driving cable 6, a quick connector 7 and a pipeline 8, wherein the vibration transmitter 1 is connected with the vibrator 2 through the driving cable 6, the vibrator 2 is connected with the quick connector 7, and the quick connector 7 is arranged on the pipeline 8; the vibration pickup 3 connects the hand 4 and the bluetooth headset 5, and is placed on the ground near the duct 8.

The pipeline 8 is a PE pipeline.

The utility model discloses a theory of operation: the emission source is connected to a vibrator through a special output cable from a transmitter, and the vibrator is connected with a tested pipeline through a quick connector. The audio signal that sends after frequency-selective amplification through super narrow band filter circuit, the audio frequency composition that reappears at bluetooth wireless earphone is simple, and the sound is pure noiselessness.

After the technical scheme is adopted, the utility model discloses beneficial effect does: the propagation distance is obviously improved, the influence of subjective factors on the measurement result is overcome, the signal receiving sensitivity is greatly improved, and the identification degree of a modulation signal is also greatly enhanced. The sound that makes bluetooth wireless earphone obtain is pure noiselessness, has reduced the stimulation and the harm of external noise to people's ear by a wide margin.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic block diagram of the working principle of the present invention.

Description of reference numerals: vibration transmitter 1, vibrator 2, vibration adapter 3, hand 4, bluetooth wireless headset 5, drive cable 6, quick connector 7, pipeline 8.

Detailed Description

Referring to fig. 1 to 2, the technical solution adopted by the present embodiment is: the device comprises a vibration transmitter 1, a vibrator 2, a vibration pickup 3, a hand 4, a Bluetooth wireless earphone 5, a driving cable 6, a quick connector 7 and a pipeline 8, wherein the vibration transmitter 1 is connected with the vibrator 2 through the driving cable 6, the vibrator 2 is connected with the quick connector 7, and the quick connector 7 is arranged on the pipeline 8; the vibration pickup 3 connects the hand 4 and the bluetooth headset 5, and is placed on the ground near the duct 8. The pipeline 8 is a PE pipeline.

The specific working principle is shown in figure 2:

the vibration transmitter starts/stops the output of the modulation wave through the panel, all the waveforms output by the transmitter are continuous and cyclic modulation waves, the modulation mode is a 3-period pseudo sine wave, and the modulation frequency is the natural frequency of the PE pipe; the vibrator converts the modulation signal generated by the vibration transmitter into sound vibration; the vibrator forms a closed space, the closed space is in butt joint with the inner cavity of the PE pipe through the quick connecting port, so that sound wave vibration generated by the air compression vibrator in the vibrator passes through the closed space, natural gas in the pipeline is used as a medium, and the natural gas is spread to the upper and lower sides of the PE pipe along the pipeline.

The vibration signal from the PE tube transmitted to the ground is picked up through a sound pick-up bottom plate and supporting legs fixed on the bottom plate, after multi-stage filtering, frequency selection and program control amplification, software demodulation is carried out by an ARM chip of the system, the signal modulated by a transmitter is restored, the frequency offset and the amplitude of the signal are calculated according to the demodulated result, and the relative vibration strength of the PE tube at the current position is determined.

Special test software is opened on the hand, the hand is wirelessly connected to the vibration pickup through Bluetooth, the special software is used for configuring parameters such as filtering time, amplification factor and the like of the vibration pickup, and the signal amplitude and the signal quality of the acquired signals are monitored in real time; in application, multipoint equidistant measurement is carried out on site, and the buried position of the pipeline is judged according to the quality and the amplitude of multipoint measurement signals.

The bluetooth wireless earphone receives the modulation signal from the vibration pickup through the bluetooth mode after the amplification and filtering, and the device is through bluetooth wireless earphone auxiliary measurement in the use, can improve the measuring accuracy.

After the technical scheme is adopted, the utility model discloses beneficial effect does: the propagation distance is obviously improved, the influence of subjective factors on the measurement result is overcome, the signal receiving sensitivity is greatly improved, and the identification degree of a modulation signal is also greatly enhanced. The sound that makes bluetooth wireless earphone obtain is pure noiselessness, has reduced the stimulation and the harm of external noise to people's ear by a wide margin. The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides a locating device is surveyed to gas PE which characterized in that: the Bluetooth wireless earphone comprises a vibration transmitter (1), a vibrator (2), a vibration pickup (3), a hand (4), a Bluetooth wireless earphone (5), a driving cable (6), a quick connecting port (7) and a pipeline (8), wherein the vibration transmitter (1) is connected with the vibrator (2) through the driving cable (6), the vibrator (2) is connected with the quick connecting port (7), and the quick connecting port (7) is arranged on the pipeline (8); the vibration pickup (3) is connected with the hand (4) and the Bluetooth wireless earphone (5) and is placed on the ground near the pipeline (8).

2. The gas PE detection positioning device according to claim 1, wherein: the pipeline (8) is a PE pipeline.