CN2125857U - Electric alarm for fish pond - Google Patents
Electric alarm for fish pond Download PDFInfo
- Publication number
- CN2125857U CN2125857U CN 92223097 CN92223097U CN2125857U CN 2125857 U CN2125857 U CN 2125857U CN 92223097 CN92223097 CN 92223097 CN 92223097 U CN92223097 U CN 92223097U CN 2125857 U CN2125857 U CN 2125857U
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- CN
- China
- Prior art keywords
- alarm
- signal
- fish
- fish pond
- electric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Abstract
The utility model relates to an electric alarm for fish pond which is a burglar alarm used for detecting and warning the phenomena of electric shock and catching fish in fish ponds. The electric alarm for fish pond is composed of a sensing device, a signal alarm and a metallic earth electrode, wherein, the sensing device comprises a set of sensing probes which are buried in ponds in order to detect high tension signals; the signal alarm comprises a signal amplifier used for magnifying the detected electrical signals from the sensing probes, an alarm signal generator which receives the magnified electrical signals and generates alarm signals and a DC power supply circuit. Because the warning device has high detection sensitivity and alarms timely, the warning device is helpful to timely discover and stop the actions of electric shock and thief fish for fish ponds maintenance personnel.
Description
The utility model relates to burglar alarm, relates in particular to a kind of fish pond electric fishing fish alarm.
Fish pond electric fishing fish alarm is to have the people to utilize the charged instrument of band alternating current or high voltage direct current to enter the device of fish pond electric shock fishing in order to warning.In the burglar alarm of existing fish pond, Shang Weijian has the device of stealing fish at electric shock.
The purpose of this utility model is to provide a kind of fish pond electric fishing fish alarm, when the people utilizes grid alternating current or high voltage direct current in fish pond electric shock fishing, can in time send alerting signal.
To achieve these goals, fish pond electric fishing fish alarm of the present utility model comprises sensing device, signal alarm device and wire ground electrode.Wherein, sensing device is embedded in the pond by at least one to be formed in order to the sensing probe that detects high-voltage signal, and the signal alarm device comprises with sensing probe and being connected in order to amplify the signal amplifier of the electric signal that sensing probe detected; Thereby in order to the above-said current signal of reception after amplifying and the alarm signal generator and the DC power supply circuit of generation alarm signal.
The fish pond electric fishing fish alarm that adopts the utility model to provide; owing to can learn electric shock fishing phenomenon in the fish pond very sensitively; in time find and prevent electric shock to steal the fish behavior so help fish pond maintenance personnel, not only protected the economic interests of fish production but also prevented the generation of accidental shock, accident such as drowned.
Below in conjunction with drawings and Examples fish pond electric fishing fish alarm of the present utility model is described in further detail.
Fig. 1 is the electrical schematic diagram of the utility model fish pond electric fishing fish alarm.
Referring to Fig. 1, fish pond electric fishing fish alarm of the present utility model is made up of sensing device P, signal alarm device S and wire ground electrode L.Wherein, sensing device P is by one group of sensing probe (bare conductor P for example
1-P
nForm, signal alarm device S comprises signal amplifier 1, audio signal generator 2 and power circuit 3.During use, with sensing probe P
1-P
mDisperse to be embedded in the fish pond bifurcation under water, an alarm can be monitored 2 to 30,000 square metres of waters scopes approximately, and signal alarm device S can be arranged on apart from the fish pond and reach 400 meters (as protecting in the house of pool personnel inhabitation).Sensing probe P
1-P
nBe connected to the input end of signal alarm device S by the hidden lead that is embedded in the ground.The earth terminal of signal alarm device S connects a wire ground electrode L and it is embedded in subsurface by lead and reaches deeply more than 1 meter.
When the waters, fish pond was subjected to grid alternating current or high voltage direct current electro ultrafiltration, the waters produced potential difference (PD) over the ground, and the electric field in the water changes, sensing probe P
1-P
mObtain voltage change signal (hereinafter referred to as measured signal) thus.After signal alarm device S receives measured signal, at first amplify by signal amplifier 1.Signal amplifier 1 is by difference input and the single-ended input operational amplifier IC of paraphase
1And IC
2Form, have anti-common mode interference ability, wherein IC
2Enlargement factor can pass through variohm W
1Regulate IC
2After meet an emitter follower BG
1Can improve the load capacity of signal amplifier 1.Measured signal is sent into audio signal generator (for example hummer) 2 and is sent alarm signal after signal amplifier 1 amplifies.In order to prevent that high-frequency signal from disturbing and preventing high voltage, heavy current pulse signal corruption alarm, be provided with one by R at the input end of signal amplifier 1
1, R
2And C
1The filtering circuit of forming, and by D
1And D
2The clamping diode circuit of forming.
As a kind of conversion, audio signal generator 2 also can be replaced by emission of radio frequency signals device (for example LM398 frequency-modulated transmitter), the radiofrequency signal of the output signal modulated radio signal transmitter of signal amplifier 1, and by its transmission, pass through radio frequency signal receiver (for example fremodyne) receiving alarm signal in 200 meters places in addition of distance emission of radio frequency signals device, like this can the proper extension monitoring distance or when being difficult for burying lead underground because of the landform reason, transmit signal with the space and replace line transmissions.
Claims (5)
1, a kind of fish pond electric fishing fish alarm, comprise sensing device and signal alarm device, it is characterized in that, it also comprises wire ground electrode, described sensing device is embedded in the pond by at least one to be formed in order to the sensing probe that detects high-voltage signal, and described signal alarm device comprises with described sensing probe and being connected in order to amplify the signal amplifier of the electric signal that sensing probe detected; Thereby in order to the described electric signal of reception after amplifying and the alarm signal generator and the DC power supply circuit of generation alarm signal.
2, fish pond electric fishing fish alarm as claimed in claim 1 is characterized in that, described signal amplifier comprises difference input and single-ended input operational amplifier of paraphase and emitter follower.
3, fish pond electric fishing fish alarm as claimed in claim 1 or 2 is characterized in that described alarm signal generator comprises audio signal generator.
4, fish pond electric fishing fish alarm as claimed in claim 1 or 2 is characterized in that described alarm signal generator comprises emission of radio frequency signals device and radio frequency signal receiver.
5, fish pond electric fishing fish alarm as claimed in claim 1 or 2 is characterized in that, a rc filter circuit and clamping diode circuit are set between described sensing device and the described signal amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92223097 CN2125857U (en) | 1992-05-27 | 1992-05-27 | Electric alarm for fish pond |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92223097 CN2125857U (en) | 1992-05-27 | 1992-05-27 | Electric alarm for fish pond |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2125857U true CN2125857U (en) | 1992-12-23 |
Family
ID=4965889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92223097 Pending CN2125857U (en) | 1992-05-27 | 1992-05-27 | Electric alarm for fish pond |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2125857U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104704539A (en) * | 2012-08-28 | 2015-06-10 | 专利店有限责任公司 | Shock detectors |
| US9799193B2 (en) | 2012-08-28 | 2017-10-24 | Birch Tree Llc | Shock detector systems |
| US10288662B2 (en) | 2016-04-05 | 2019-05-14 | Shock Alert Llc | Shock detector |
-
1992
- 1992-05-27 CN CN 92223097 patent/CN2125857U/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104704539A (en) * | 2012-08-28 | 2015-06-10 | 专利店有限责任公司 | Shock detectors |
| US9678119B2 (en) | 2012-08-28 | 2017-06-13 | Shock Alert Llc | Shock detector |
| CN104704539B (en) * | 2012-08-28 | 2017-07-07 | 伯奇特里有限责任公司 | Electric shock detector |
| US9799193B2 (en) | 2012-08-28 | 2017-10-24 | Birch Tree Llc | Shock detector systems |
| US10359453B2 (en) | 2012-08-28 | 2019-07-23 | Shock Alert Llc | Shock detector |
| US10288662B2 (en) | 2016-04-05 | 2019-05-14 | Shock Alert Llc | Shock detector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |