CN203551706U - Novel noiseless hunting instrument - Google Patents
Novel noiseless hunting instrument Download PDFInfo
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- CN203551706U CN203551706U CN201320575745.1U CN201320575745U CN203551706U CN 203551706 U CN203551706 U CN 203551706U CN 201320575745 U CN201320575745 U CN 201320575745U CN 203551706 U CN203551706 U CN 203551706U
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Abstract
The utility model relates to the technical field of the hunting instruments, and specifically relates to a novel noiseless hunting instrument. The utility model comprises a signal transmitter and a signal receiver. The signal receiver comprises a signal receiving probe, a signal amplification circuit, a signal shaping circuit, an MCU, an audio amplification circuit, and a loudspeaker, wherein the signal receiving probe, the signal amplification circuit, the signal shaping circuit, the MCU, the audio amplification circuit and the loudspeaker are sequentially connected together. A filter circuit is disposed between the signal amplification circuit and the signal shaping circuit. When the hunting instrument is in use, high-frequency and lower-frequency noise waves, which are mixed in a signal, are filtered through the filter circuit disposed in a circuit, thereby achieving a function of signal purification, and avoiding noises.
Description
Technical field
The utility model relates to hunting instrument technical field, specifically, relates to the novel hunting instrument of a kind of noiselessness.
Background technology
Universal along with network, the place that netting twine, telephone wire use is more and more, and netting twine, telephone wire are before use, need to detect it, whether correctly detect interface wiring, during detection, often use hunting instrument.Current hunting instrument comprises that transmitter and receiver two parts form.When the line inspection, by transmitter, in one end of the line inspection, produce signal, the online other end of receiver receives signal, will point out hunting correct when having signal to receive.
Yet along with the develop rapidly of electronic technology, living environment exists electromagnetic signal everywhere, hunting instrument is when the line inspection, and receiver tends to produce very large noise; The reason that produces noise is, electromagnetic signal around receives as power frequency 50HZ/60HZ will be received by the receiver head, through small signal amplification circuit, filtering circuit, audio frequency amplification chip, directly output to loudspeaker successively, produce noise, the hunting instrument of selling in the market in use, capital produces noise, to user, brings noise injury.
Summary of the invention
The utility model in use can produce noise in order to solve hunting instrument of the prior art, and user is brought to noise injury; Provide a kind of noiselessness novel hunting instrument, this hunting instrument, when electromagnetic environment is used, can filter noise signal, avoids the generation of noise, is conducive to user's physical and mental health.
The technical solution adopted in the utility model is:
The novel hunting instrument of noiselessness, comprises signal projector and signal receiver, and described signal receiver comprises probe receiver, signal amplification circuit, signal transformation circuit, MCU, audio amplifier circuit and the loudspeaker that connect successively; Between described signal amplification circuit and signal transformation circuit, be provided with filtering circuit.
Further, described filtering circuit comprises high-pass filtering circuit and low-pass filter circuit.
Further, described high-pass filtering circuit is three rank high pass active filter circuits, it comprises resistance R 1, resistance R 2, resistance R 3, resistance R 4, capacitor C 1, capacitor C 2, capacitor C 3 and operational amplifier Q1, wherein resistance R 1 successively with capacitor C 1, capacitor C 2, the normal phase input end of capacitor C 3 and operational amplifier Q1 connects, one end of resistance R 3 is connected with output terminal with the inverting input of operational amplifier Q1 respectively, the other end of resistance R 3 is connected between capacitor C 2 and capacitor C 3, one end of resistance R 2 is connected between capacitor C 1 and capacitor C 2, the other end ground connection of resistance R 2, one end of resistance R 4 is connected with the normal phase input end of operational amplifier Q1, the other end ground connection of resistance R 4.
Further, described low-pass filter circuit is step low-pass active filter circuit, and it comprises resistance R 5, capacitor C 4, capacitor C 5 and operational amplifier Q2; Wherein, one end of capacitor C 4 is connected with output terminal with the inverting input of operational amplifier Q2 respectively, the other end of capacitor C 4 is connected with one end of resistance R 5, and the other end of resistance R 5 is connected with one end of capacitor C 5 with the normal phase input end of operational amplifier Q2 respectively, the other end ground connection of capacitor C 5.
Further, described signal transformation circuit is for being the signal transformation circuit of discrete digital signal by received signal shaping, signal transformation circuit comprises resistance R 6, resistance R 7, resistance R 8 and operational amplifier Q3, one end of resistance R 6 is connected with the normal phase input end of operational amplifier Q3, one end of resistance R 7 is connected with 5V power end, the other end of resistance R 7 is connected with one end of resistance R 8 with the inverting input of operational amplifier Q3 respectively, the other end ground connection of resistance R 8.
Further, described MCU is provided with signal processing module.
Further, described signal receiver also comprises LED lamp.
Further, signal projector is provided with two ports that transmit, and is respectively RJ11 telephone line port and RJ45 grid line port.
Further, described signal projector is provided with microprocessor, alternating-current pulse translation circuit and DC pulse driving circuit, microprocessor is connected with alternating-current pulse translation circuit, DC pulse driving circuit respectively, alternating-current pulse translation circuit is connected with RJ45 grid line port respectively with DC pulse driving circuit, and alternating-current pulse translation circuit is connected with RJ11 telephone line port.
The beneficial effects of the utility model are: when the utility model is used, by filtering circuit is set in circuit, the high frequency frequency spur and the low-frequency clutter that are mixed in signal are filtered, play the function of purifying signal, avoid the generation of noise.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of three rank high pass active filter circuits of the present utility model.
Fig. 2 is the schematic diagram of a kind of low pass second-order active filter circuit of the present utility model.
Fig. 3 is the schematic diagram of a kind of signal transformation circuit of the present utility model.
Fig. 4 is the theory diagram of signal receiver of the present utility model.
Fig. 5 is the theory diagram of signal projector of the present utility model.
Reference numeral is:
1---probe receiver 2---high-pass filtering circuit
3---low-pass filter circuit 4---signal transformation circuit
5---MCU 6---audio amplifier circuit
7---loudspeaker 8---RJ45 grid line port
9---DC pulse driving circuit 10---microprocessor
11---alternating-current pulse translation circuit 12---RJ11 telephone line port.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described further.
Embodiment 1: referring to Fig. 1 to Fig. 5.
The novel hunting instrument of noiselessness, comprises signal projector and signal receiver, and referring to Fig. 4, described signal receiver comprises probe receiver 1, signal amplification circuit, signal transformation circuit 4, MCU5, audio amplifier circuit 6 and the loudspeaker 7 that connect successively; Between described signal amplification circuit and signal transformation circuit 4, be provided with filtering circuit.
The utility model is when carrying out hunting, probe receiver 1 receives the signal that signal projector sends, and change signal into analog current signal and send to signal amplification circuit, signal amplification circuit amplifies analog current signal and sends filtering circuit to, filtering circuit carries out filtering processing to the analog current signal amplifying, removal is mixed in the environmental electromagnetic wave signal in current signal, analog current signal entering signal shaping circuit 4 after filtering is processed, signal transformation circuit 4 is transformed into analog current signal discrete digital signal and sends to MCU5, MCU5 controls loudspeaker 7 by audio amplifier circuit 6 and sends pure sound signal.The utility model, with respect to the hunting instrument on market, is provided with filtering circuit more on circuit, and filtering circuit can help the accurate line inspection effectively by undesired signal filtering, realizes noiseless output.
Further, described filtering circuit comprises high-pass filtering circuit 2 and low-pass filter circuit 3.
By high-pass filtering circuit 2 and low-pass filter circuit 3 are set, the ambient signal being mingled with is removed, remove high-frequency and low-frequency signal, realize the object of filtering.The order of high-pass filtering circuit 2 and low-pass filter circuit 3 places in circuit can be changed as required.
Referring to Fig. 1, described high-pass filtering circuit 2 is three rank high pass active filter circuits, it comprises resistance R 1, resistance R 2, resistance R 3, resistance R 4, capacitor C 1, capacitor C 2, capacitor C 3 and operational amplifier Q1, wherein resistance R 1 successively with capacitor C 1, capacitor C 2, the normal phase input end of capacitor C 3 and operational amplifier Q1 connects, one end of resistance R 3 is connected with output terminal with the inverting input of operational amplifier Q1 respectively, the other end of resistance R 3 is connected between capacitor C 2 and capacitor C 3, one end of resistance R 2 is connected between capacitor C 1 and capacitor C 2, the other end ground connection of resistance R 2, one end of resistance R 4 is connected with the normal phase input end of operational amplifier Q1, the other end ground connection of resistance R 4.
Referring to Fig. 2, described low-pass filter circuit 3 is step low-pass active filter circuit, and it comprises resistance R 5, capacitor C 4, capacitor C 5 and operational amplifier Q2; Wherein, one end of capacitor C 4 is connected with output terminal with the inverting input of operational amplifier Q2 respectively, the other end of capacitor C 4 is connected with one end of resistance R 5, and the other end of resistance R 5 is connected with one end of capacitor C 5 with the normal phase input end of operational amplifier Q2 respectively, the other end ground connection of capacitor C 5.
Referring to Fig. 3, described signal transformation circuit 4 is for by received signal shaping being the signal transformation circuit 4 of discrete digital signal, signal transformation circuit 4 comprises resistance R 6, resistance R 7, resistance R 8 and operational amplifier Q3, one end of resistance R 6 is connected with the normal phase input end of operational amplifier Q3, one end of resistance R 7 is connected with 5V power end, the other end of resistance R 7 is connected with one end of resistance R 8 with the inverting input of operational amplifier Q3 respectively, the other end ground connection of resistance R 8.
Further, described MCU5 is provided with signal processing module, and signal processing module adopts limit filtration mode, effectively filtering high-frequency pulse signal; And then adopting middle position value filtering method to carry out filtering to generally thering is the signal of random disturbance, signal is fluctuation up and down near a certain numerical range; Through the mode of signal processing module (software) filtering, make receiver can correctly receive the signal of the pulse that transmitter sends, realize the output of digitizing noiselessness.
Further, described signal receiver also comprises LED lamp.
LED lamp arranges separately in addition, makes it possess illumination functions.
Further, signal projector is provided with two ports that transmit, and is respectively RJ11 telephone line port 12 and RJ45 grid line port 8.
This hunting instrument can be checked for telephone wire and grid line, hunting.Signal projector transponder pulse signal, frequency range is at 2KHZ-100KHZ.
Referring to Fig. 5, described signal projector is provided with microprocessor 10, alternating-current pulse translation circuit 11 and DC pulse driving circuit 9, microprocessor 10 is connected with alternating-current pulse translation circuit 11, DC pulse driving circuit 9 respectively, alternating-current pulse translation circuit 11 is connected with RJ45 grid line port 8 respectively with DC pulse driving circuit 9, and alternating-current pulse translation circuit 11 is connected with RJ11 telephone line port 12.
In use, transmit frequency range is at 2KHZ-100KHZ; RJ45 port can be launched two kinds of different signals, and a kind of is the pulse signal of direct current, a kind of pulse signal for exchanging; RJ11 launches a kind of alternating-current pulse signal.
Below be only the application's preferred embodiment, equivalent technical solutions on this basis still falls into application protection domain.
Claims (8)
1. the novel hunting instrument of noiselessness, comprises signal projector and signal receiver, and described signal receiver comprises probe receiver, signal amplification circuit, signal transformation circuit, MCU, audio amplifier circuit and the loudspeaker that connect successively; It is characterized in that: between described signal amplification circuit and signal transformation circuit, be provided with filtering circuit.
2. the novel hunting instrument of a kind of noiselessness according to claim 1, is characterized in that: described filtering circuit comprises high-pass filtering circuit and low-pass filter circuit.
3. the novel hunting instrument of a kind of noiselessness according to claim 2, it is characterized in that: described high-pass filtering circuit is three rank high pass active filter circuits, it comprises resistance R 1, resistance R 2, resistance R 3, resistance R 4, capacitor C 1, capacitor C 2, capacitor C 3 and operational amplifier Q1, wherein resistance R 1 successively with capacitor C 1, capacitor C 2, the normal phase input end of capacitor C 3 and operational amplifier Q1 connects, one end of resistance R 3 is connected with output terminal with the inverting input of operational amplifier Q1 respectively, the other end of resistance R 3 is connected between capacitor C 2 and capacitor C 3, one end of resistance R 2 is connected between capacitor C 1 and capacitor C 2, the other end ground connection of resistance R 2, one end of resistance R 4 is connected with the normal phase input end of operational amplifier Q1, the other end ground connection of resistance R 4.
4. the novel hunting instrument of a kind of noiselessness according to claim 2, is characterized in that: described low-pass filter circuit is step low-pass active filter circuit, and it comprises resistance R 5, capacitor C 4, capacitor C 5 and operational amplifier Q2; Wherein, one end of capacitor C 4 is connected with output terminal with the inverting input of operational amplifier Q2 respectively, the other end of capacitor C 4 is connected with one end of resistance R 5, and the other end of resistance R 5 is connected with one end of capacitor C 5 with the normal phase input end of operational amplifier Q2 respectively, the other end ground connection of capacitor C 5.
5. the novel hunting instrument of a kind of noiselessness according to claim 1, it is characterized in that: described signal transformation circuit is for being the signal transformation circuit of discrete digital signal by received signal shaping, signal transformation circuit comprises resistance R 6, resistance R 7, resistance R 8 and operational amplifier Q3, one end of resistance R 6 is connected with the normal phase input end of operational amplifier Q3, one end of resistance R 7 is connected with 5V power end, the other end of resistance R 7 is connected with one end of resistance R 8 with the inverting input of operational amplifier Q3 respectively, the other end ground connection of resistance R 8.
6. the novel hunting instrument of a kind of noiselessness according to claim 1, is characterized in that:, described signal receiver also comprises LED lamp.
7. the novel hunting instrument of a kind of noiselessness according to claim 1, is characterized in that: signal projector is provided with two ports that transmit, and is respectively RJ11 telephone line port and RJ45 grid line port.
8. the novel hunting instrument of a kind of noiselessness according to claim 7, it is characterized in that: described signal projector is provided with microprocessor, alternating-current pulse translation circuit and DC pulse driving circuit, microprocessor is connected with alternating-current pulse translation circuit, DC pulse driving circuit respectively, alternating-current pulse translation circuit is connected with RJ45 grid line port respectively with DC pulse driving circuit, and alternating-current pulse translation circuit is connected with RJ11 telephone line port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320575745.1U CN203551706U (en) | 2013-09-17 | 2013-09-17 | Novel noiseless hunting instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320575745.1U CN203551706U (en) | 2013-09-17 | 2013-09-17 | Novel noiseless hunting instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203551706U true CN203551706U (en) | 2014-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320575745.1U Expired - Lifetime CN203551706U (en) | 2013-09-17 | 2013-09-17 | Novel noiseless hunting instrument |
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| Country | Link |
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| CN (1) | CN203551706U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109962606A (en) * | 2017-12-22 | 2019-07-02 | 大众汽车有限公司 | Drawing electric network in electric vehicle |
| CN110596511A (en) * | 2019-08-27 | 2019-12-20 | 和昊元(北京)科技有限公司 | Low-frequency pulse signal line searching system |
-
2013
- 2013-09-17 CN CN201320575745.1U patent/CN203551706U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109962606A (en) * | 2017-12-22 | 2019-07-02 | 大众汽车有限公司 | Drawing electric network in electric vehicle |
| CN109962606B (en) * | 2017-12-22 | 2021-12-03 | 大众汽车有限公司 | Traction network in an electric vehicle |
| CN110596511A (en) * | 2019-08-27 | 2019-12-20 | 和昊元(北京)科技有限公司 | Low-frequency pulse signal line searching system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Novel noiseless hunting instrument Effective date of registration: 20171117 Granted publication date: 20140416 Pledgee: China Co. truction Bank Corp Dongguan Shijie branch Pledgor: DONGGUAN JIECHUANG ELECTRONIC MONITORING AND CONTROL Co.,Ltd. Registration number: 2017440000136 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190326 Granted publication date: 20140416 Pledgee: China Co. truction Bank Corp Dongguan Shijie branch Pledgor: DONGGUAN JIECHUANG ELECTRONIC MONITORING AND CONTROL Co.,Ltd. Registration number: 2017440000136 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Novel noiseless hunting instrument Effective date of registration: 20190401 Granted publication date: 20140416 Pledgee: China Co. truction Bank Corp Dongguan Shijie branch Pledgor: DONGGUAN JIECHUANG ELECTRONIC MONITORING AND CONTROL Co.,Ltd. Registration number: 2019440000129 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |
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| CX01 | Expiry of patent term |