CN217981871U

CN217981871U - Voice line finder

Info

Publication number: CN217981871U
Application number: CN202122313882.5U
Authority: CN
Inventors: 万维; 林永英
Original assignee: Shenzhen Jixiang Tengfei Technology Co ltd
Current assignee: Shenzhen Jixiang Tengfei Technology Co ltd
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-12-06
Anticipated expiration: 2031-09-23

Abstract

The utility model provides a voice hunting instrument, which comprises a host and a receiver; the host comprises a signal generating module and a wiring port, wherein the signal generating module is used for generating a line seeking signal, and the wiring port is used for connecting a cable to be tested; the receiver comprises a receiving loop, a first amplifying circuit, a potentiometer, a second amplifying circuit, a decoding module, a voice module and a loudspeaker, wherein the output end of the receiving loop is connected with the input end of the first amplifying circuit, the output end of the first amplifying circuit is connected with the fixed port of the potentiometer, the adjustable port of the potentiometer is connected with the input end of the second amplifying circuit, the output end of the second amplifying circuit is connected with the input end of the decoding module, the output end of the decoding module is connected with the input end of the voice module, and the output end of the voice module is connected with the loudspeaker. The utility model discloses a voice module replaces MCU and power amplifier chip, and the cost is reduced adopts voice chip output to seek line suggestion simultaneously, has effectively avoided external interference sound, and the circuit is succinct, and the reliability is high.

Description

Voice hunting instrument

Technical Field

The utility model belongs to the technical field of electrical detection equipment and specifically relates to a pronunciation hunting appearance.

Background

The hunting appearance is applicable to the cable location, comprises signal generator and detector, and during the use, signal generator connects the tip of cable, sends the signal to in the cable, then recycles the detector and seeks the signal, and after finding the signal, the hunting appearance can sound, and then can confirm the cable.

At present, two hunting instruments exist in the market, one is an analog signal hunting instrument, and external interference sound can be received when the hunting instrument works, so that noise exists in actual use; the other is the hunting instrument adopting the MCU, the output is an audio prompt signal, the audio prompt signal passes through a power amplifier chip and is amplified and then sent to a loudspeaker, and the hunting instrument adopting the MCU has complex circuit and higher cost.

SUMMERY OF THE UTILITY MODEL

Not enough to above-mentioned prior art exists, the utility model aims to provide a pronunciation hunting appearance adopts analog signal circuit to acquire the hunting signal, and its internal circuit does not adopt MCU and power amplifier chip, and the cost is reduced adopts pronunciation chip output hunting suggestion simultaneously, has effectively avoided external interference sound, and the circuit is succinct, and the reliability is high.

In order to realize the purpose, the utility model adopts the following technical scheme:

the utility model provides a voice line finder, which comprises a host and a receiver; the host comprises a signal generation module and a wiring port, wherein the signal generation module is used for generating a line seeking signal, the signal generation module is connected with the wiring port, and the wiring port is used for connecting a cable to be tested; the receiver is including receiving return circuit, first amplifier circuit, potentiometre, second amplifier circuit, decoding module, voice module and loudspeaker, the output of receiving the return circuit is connected first amplifier circuit's input, first amplifier circuit's output is connected the fixed port of potentiometre, the adjustable port of potentiometre is connected second amplifier circuit's input, second amplifier circuit's output is connected decoding module's input, decoding module's output is connected voice module's input, loudspeaker are connected to voice module's output.

Optionally, the receiving loop includes a winding inductor.

Optionally, the decoding module includes a frequency modulation and demodulation chip LM567 and a peripheral circuit.

Optionally, the voice module includes a voice chip and a peripheral circuit.

Optionally, the connection port is a network cable interface.

The utility model discloses following beneficial effect has:

compared with the prior art, the embodiment of the utility model, cancelled the inside MCU of former receiver and power amplifier chip, the embodiment of the utility model provides an adopt voice module to replace MCU and power amplifier chip, the cost is reduced adopts voice chip output to seek the line suggestion simultaneously, has effectively avoided external interference sound, and the circuit is succinct, and the reliability is high.

Drawings

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

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

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Examples

Referring to fig. 1, the utility model provides a voice hunting appearance embodiment, include: the main machine comprises a signal generating module 101 and a wiring port 102, wherein the signal generating module 101 is used for generating a line seeking signal, the signal generating module 101 is connected with the wiring port 102, and the wiring port 102 is used for connecting a cable 300 to be tested. The receiver 200 includes a receiving loop 201, a first amplifying circuit 202, a potentiometer 203, a second amplifying circuit 204, a decoding module 205, a voice module 206, and a speaker 207. The receiving loop 201 is connected with an external antenna of the receiver 200, an output end of the receiving loop 201 is connected with an input end of the first amplifying circuit 202, an output end of the first amplifying circuit 202 is connected with a fixed port of the potentiometer 203, an adjustable port of the potentiometer 203 is connected with an input end of the second amplifying circuit 204, an output end of the second amplifying circuit 204 is connected with an input end of the decoding module 205, an output end of the decoding module 205 is connected with an input end of the voice module 206, and an output end of the voice module 206 is connected with the loudspeaker 207.

The embodiment of the utility model provides a theory of operation does:

the host 100 generates a signal of a specific frequency, such as a 126KHz signal, through the signal generation module 101, and the signal is transmitted to the cable 300 through the connection port 102. The receiver 200 receives a signal around the cable 300, specifically, a signal through the receiving loop 201. The signal is transmitted to the first amplifier circuit 202, amplified, and output to the potentiometer 203. The potentiometer 203 can adjust the amplitude of the signal, i.e., the receiving distance of the receiver 200 can be adjusted correspondingly, and the signal is output from the adjustable port of the potentiometer 203 and sent to the second amplifying circuit 204 for amplification. The amplified signal is transmitted to the decoding circuit 205, when the decoding circuit 205 recognizes a specific frequency signal generated by the host 100, the inverted level is output to the voice module 206, and the voice module 206 outputs a voice prompt after receiving the trigger signal.

Compared with the prior art, the embodiment of the utility model, cancelled inside MCU and the power amplifier chip of former receiver, the embodiment of the utility model provides an adopt voice module to replace MCU and power amplifier chip, the cost is reduced adopts voice chip output to seek line suggestion simultaneously, has effectively avoided external interference sound, and the circuit is succinct, and the reliability is high.

In an alternative embodiment, the receive loop 201 includes a wound inductor. In some embodiments, the antenna is formed by a wire wound inductor to receive a seek signal from a host.

In an alternative embodiment, the decoding module 205 comprises a frequency modulation and demodulation chip LM567 and peripheral circuits. The signal is input from an IN pin of the LM567 chip, and is output from an OUT pin of the LM567 chip after demodulation. The central working frequency of LM567 can be limited by setting the capacitance value connected with the CT pin of the LM567 chip and the resistance value connected with the RT pin, when the input signal is in the bandwidth range of the central working frequency, LM567 outputs high level, and when the input signal is in the bandwidth range of the central working frequency, LM567 outputs low level.

In an alternative embodiment, the voice module 206 includes a voice chip and peripheral circuits. In some embodiments, the voice chip is model ANDOR3016. The voice chip receives the trigger signal output by the decoding module 205 and then outputs a voice prompt. In some embodiments, the voice chip sets for do not do interrupt processing in voice broadcast after triggering, that is to say do not respond to trigger signal in voice broadcast, detects trigger signal again after voice broadcast ends whether for the high level, and voice broadcast can not interrupted like this. In some embodiments, the voice prompt is broadcast, for example, "line found", and the voice broadcast has a small number of words and can be broadcast within one second, so that there is substantially no delay in use.

In an alternative embodiment, the patch port 102 is a network cable interface. In some embodiments, the patch port 102 is an RJ11 interface or an RJ45 interface.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. These should also be considered as the scope of protection of the present invention, and these do not affect the effects of the implementation of the present invention and the utility of the patent. This need not be, nor should it be exhaustive of all embodiments. The scope of the claims of the present application shall be defined by the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. A voice hunting instrument is characterized by comprising a host and a receiver; the host comprises a signal generation module and a wiring port, wherein the signal generation module is used for generating a line seeking signal, the signal generation module is connected with the wiring port, and the wiring port is used for connecting a cable to be tested; the receiver is including receiving return circuit, first amplifier circuit, potentiometre, second amplifier circuit, decoding module, voice module and loudspeaker, the output of receiving the return circuit is connected first amplifier circuit's input, first amplifier circuit's output is connected the fixed port of potentiometre, the adjustable port of potentiometre is connected second amplifier circuit's input, second amplifier circuit's output is connected decoding module's input, decoding module's output is connected voice module's input, loudspeaker are connected to voice module's output.

2. The voice hunting instrument as claimed in claim 1, wherein said receiving circuit comprises a wound inductor.

3. The voice hunting apparatus according to claim 1, wherein the decoding module comprises a fm and demod chip LM567 and peripheral circuits.

4. The voice hunting instrument according to claim 1, wherein the voice module comprises a voice chip and a peripheral circuit.

5. The voice hunting instrument according to claim 1, wherein the connection port is a network cable interface.