CN203825747U - A glass fragmentation detection apparatus - Google Patents
A glass fragmentation detection apparatus Download PDFInfo
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- CN203825747U CN203825747U CN201420223116.7U CN201420223116U CN203825747U CN 203825747 U CN203825747 U CN 203825747U CN 201420223116 U CN201420223116 U CN 201420223116U CN 203825747 U CN203825747 U CN 203825747U
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- sniffer
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- 239000011521 glass Substances 0.000 title claims abstract description 51
- 238000001514 detection method Methods 0.000 title abstract 2
- 238000013467 fragmentation Methods 0.000 title abstract 2
- 238000006062 fragmentation reaction Methods 0.000 title abstract 2
- 238000001914 filtration Methods 0.000 claims abstract description 16
- 230000003321 amplification Effects 0.000 abstract 4
- 238000003199 nucleic acid amplification method Methods 0.000 abstract 4
- 230000001960 triggered effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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- Burglar Alarm Systems (AREA)
Abstract
The utility model provides a glass fragmentation detection apparatus comprising a filtering unit, an amplification unit and a master control unit which are sequentially electrically connected. The filtering unit comprises a low-pass filter circuit module and a high-pass filter circuit module which are sequentially electrically connected. An output terminal of the high-pass filter circuit module is in electric connection with an input terminal of the amplification unit. The master control unit comprises an identification module and a processor module which are sequentially electrically connected. An input terminal of the identification module is in electric connection with an output terminal of the amplification unit. The identification module is in electric connection with the output terminal of the amplification unit in order to carry out identification again on a pulse width of an audio frequency which passes the filtering unit and which is determined to be within a scope for decibels and a crack sound domain, and an alarm can be triggered only after the filtering unit and the identification unit carries out triggering simultaneously, so that false alarms are prevented from happening and influencing normal life of people.
Description
Technical field
The utility model relates to electronics safety-security area, particularly relates to a kind of glass breaking sniffer.
Background technology
In order to prevent that robber from breaking glass door or the illegal burglary of windowpane, all can the mounting glass broken sniffer of existing warning system against theft, glass breaking sniffer measures by decibel and the voice range that breaks judges the audio frequency collecting, once find that sound after is after filtering greater than preset range and just can triggers in time alarm and point out user.But; existing glass breaking sniffer just measures by decibel and the voice range that breaks judges whether to meet alarm scope; and cannot judge the pulse width of the audio frequency collecting; so if the volumes such as firecrackers sound or collision reach certain decibel and voice range, the obvious very long sound of pulse width also can trigger alarm; often have wrong report phenomenon, affect user's normal life.
Utility model content
Technical problem to be solved in the utility model is: by being electrically connected identification module at amplifying unit output terminal, again identify its pulse width for unit judges after filtering being met to the audio frequency of decibel and the voice range that breaks in scope, after only having filter unit and recognition unit to trigger, could trigger alarm simultaneously, solve existing sniffer and easily prevent the problem of reporting by mistake.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of glass breaking sniffer, comprises the filter unit, amplifying unit and the main control unit that are electrically connected successively;
Described filter unit comprises low-pass filter circuit module and the high-pass filtering circuit module of electrical connection successively, and the output terminal of described high-pass filtering circuit module is electrically connected with the input end of described amplifying unit;
Described main control unit comprises identification module and the processor module of electrical connection successively, and the input end of described identification module is electrically connected with the output terminal of described amplifying unit.
Further, described identification module comprises control chip, light emitting diode, the first electric capacity, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the 9th resistance, the first switch, second switch, thumb-acting switch and power supply;
Second pin one end of described control chip connects thumb-acting switch the 8th terminal, and the other end connects ground connection after the first resistance; The 3rd pin one end of described control chip connects thumb-acting switch the 7th terminal, and the other end connects ground connection after the second resistance; The 4th pin one end of described control chip connects power supply, and the other end connects ground connection after the first electric capacity; The 5th pin one end of described control chip connects thumb-acting switch the 6th terminal, ground connection after other end connection the 4th resistance; The 6th pin one end of described control chip connects thumb-acting switch Five-terminals, and the other end is by ground connection after the 3rd resistance; The 7th pin of described control chip is connected power supply with one end after the 6th pin parallel connection by the 5th resistance, and the other end is by the 6th resistance eutral grounding;
The 8th pin one end of described control chip connects the output terminal of described amplifying unit, and the other end is by ground connection after the 7th resistance; Ground connection after the tenth pin one end connection the 8th resistance of described control chip, the other end connects the first switch, second switch and power supply successively; The direct ground connection of the 11 pin of described control chip; The 13 pin of described control chip connects the negative electrode of the 9th resistance and light emitting diode successively.
Further, described glass breaking sniffer also comprises radio reception microphone unit, and described radio reception microphone unit is electrically connected with the input end of described filter unit.
Further, described identification module just triggers processor module by pulse width at the pulse wave of 100-600 millisecond.
Further, described glass breaking sniffer also comprises shell, and described filter unit, amplifying unit and main control unit are installed in described shell, and described shell is provided with MIC.
Further, described glass breaking sniffer is installed on ceiling or wall.
The beneficial effects of the utility model are: only whether unit judges audio frequency decibel and the voice range that breaks just can trigger alarm in scope after filtering with existing glass breaking sniffer in the utility model difference; and whether the width that cannot judge tonepulse meets glass breaking scope, often can produce the deficiency of wrong report phenomenon.The utility model is by adding identification module at main control unit, the output terminal of amplifying unit is electrically connected with identification module, by the identification module tonepulse width that further judgement meets filter unit trigger condition whether within the specific limits, only after triggering simultaneously, filter unit and identification module could trigger the processor module of main control unit, identification by identification module tonepulse width can determine whether glass breaking sound more accurately, avoids false alarm to affect people and lives normally.Brief description of the drawings
Fig. 1 is the structure composition frame chart of a kind of glass breaking sniffer of the utility model one embodiment;
Fig. 2 is the circuit diagram of identification module in a kind of glass breaking sniffer of the utility model one embodiment;
Fig. 3 is the structural drawing of a kind of glass breaking sniffer of the utility model one embodiment.
Main label declaration:
Filter unit 1; Amplifying unit 2; Main control unit 3;
Low-pass filter circuit module 4; High-pass filtering circuit module 5; Identification module 6;
Processor module 7; Radio reception microphone unit 9; Shell 10;
MIC 11.
Embodiment
By describing technology contents of the present utility model, structural attitude in detail, being realized object and effect, below in conjunction with embodiment and coordinate accompanying drawing to be explained in detail.
The design of the utility model most critical is: by the identification module at amplifying unit output terminal electrical connection main control unit, only trigger simultaneously and just can trigger main control unit alarm at filter unit and identification module, trigger audio frequency and must meet the judgement of filter unit decibel, the voice range that breaks and the requirement of recognition module pulse width simultaneously, improve the identification precision of glass breaking sniffer, avoid occurring wrong report phenomenon.
Refer to Fig. 1, the structure composition frame chart of a kind of glass breaking sniffer of the utility model one embodiment.
A kind of glass breaking sniffer, comprises the filter unit 1, amplifying unit 2 and the main control unit 3 that are electrically connected successively;
Described filter unit 1 comprises low-pass filter circuit module 4 and the high-pass filtering circuit module 5 of electrical connection successively, and the output terminal of described high-pass filtering circuit module 5 is electrically connected with the input end of described amplifying unit 2;
Described main control unit 3 comprises identification module 6 and the processor module 7 of electrical connection successively, and the input end of described identification module 6 is electrically connected with the output terminal of described amplifying unit 2.
From foregoing description, the beneficial effects of the utility model are: by the identification module 6 of the output terminal electrical connection main control unit 3 at amplifying unit 2, after only having and triggering filter unit 1 and identification module 6 simultaneously, could further send the processing module of main control unit 3.Distinguishing the low-pass filter circuit in the past only having by filter unit 1 decays filtered voice more than 8KHZ, after the sound below 4KHZ being come to decay by high-pass filtering circuit again, judge audio frequency decibel and break whether voice range just can directly trigger alarm in scope and the phenomenon of wrong report often occurs, add the pulse width that judges the audio frequency behind unit 1 after filtering by recognition module, only has tonepulse width within the specific limits, recognition module just can trigger the processor module 7 of main control unit 3, identification by identification module 6 tonepulse width can determine whether glass breaking sound more accurately, avoiding false alarm to affect people lives normally.
Referring to Fig. 2, is the circuit diagram of identification module 6 in a kind of glass breaking sniffer of the utility model one embodiment.
Further, state identification module 6 and comprise control chip, light emitting diode, the first electric capacity, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the 9th resistance, the first switch, second switch, thumb-acting switch and power supply;
Second pin one end of described control chip connects thumb-acting switch the 8th terminal, and the other end connects ground connection after the first resistance; The 3rd pin one end of described control chip connects thumb-acting switch the 7th terminal, and the other end connects ground connection after the second resistance; The 4th pin one end of described control chip connects power supply, and the other end connects ground connection after the first electric capacity; The 5th pin one end of described control chip connects thumb-acting switch the 6th terminal, ground connection after other end connection the 4th resistance; The 6th pin one end of described control chip connects thumb-acting switch Five-terminals, and the other end is by ground connection after the 3rd resistance; The 7th pin of described control chip is connected power supply with one end after the 6th pin parallel connection by the 5th resistance, and the other end is by the 6th resistance eutral grounding;
The 8th pin one end of described control chip connects the output terminal of described amplifying unit 2, and the other end is by ground connection after the 7th resistance; Ground connection after the tenth pin one end connection the 8th resistance of described control chip, the other end connects the first switch, second switch and power supply successively; The direct ground connection of the 11 pin of described control chip; The 13 pin of described control chip connects the negative electrode of the 9th resistance and light emitting diode successively.
By the judgement of above-mentioned identification module 6, can accurately judge whether tonepulse width meets the requirements, only meet the processor module 7 that just can trigger main control unit 3 in certain limit and carry out alarm.
Further, described glass breaking sniffer also comprises radio reception microphone, and described radio reception microphone is electrically connected with the input end of described filter unit 1.Carry out follow-up judgement by being sent to filter unit 1 through processing such as noise reductions after the sensitive collection audio frequency of radio reception microphone, ensure the fidelity of the audio frequency collecting.
Further, described identification module 6 just triggers processor module 7 by pulse width in the pulse of 100-600 millisecond.The sound that a normal glass is crashed to pieces has 100 milliseconds at least, the most very much not can exceed 600 milliseconds, calculate and break up continuously several pieces glass exactly, centre also has interval, according to glass breaking tonepulse width according to characteristic judge as further the audio frequency determining whether as glass breaking, improve the accuracy of glass breaking sniffer judgement.
Referring to Fig. 3, is the structural drawing of a kind of glass breaking sniffer of the utility model one embodiment.
Further, described glass breaking sniffer also comprises shell 10, and described filter unit 1, amplifying unit 2 and main control unit 3 are installed in described shell 10, and described shell 10 is provided with MIC 11.In installing by MIC 11 to the outside to the direction of windowpane or glass door, positive collection audio frequency, conveniently recognized.
Further, described glass breaking sniffer is installed on ceiling or wall.The shell 10 that described glass breaking sniffer is housed can be arranged on ceiling or indoor wall, and need not be directly installed on glass, induction that can be responsive by MIC 11 and radio reception microphone unit 9 and collect audio frequency, and can not affect the usability of described glass breaking sniffer.
In sum, the glass breaking sniffer that the utility model provides is by adding identification module 6 at main control unit 3, the output terminal of amplifying unit 2 is electrically connected with identification module 6, through the identification module 6 tonepulse width that further judgement meets filter unit 1 trigger condition whether within the scope of 100-600 millisecond, only after triggering simultaneously, filter unit 1 and identification module 6 could trigger the processor module 7 of main control unit 3, identification by identification module 6 tonepulse width can determine whether glass breaking sound more accurately, avoiding false alarm to affect people lives normally, and collection that can be sensitive by radio reception microphone unit 9 is also accomplished audio frequency fidelity to greatest extent, ensure the accuracy of the audio frequency collecting from source, come, the MIC 11 on shell 10 can positively gather audio frequency, avoid occurring echo interference, and described glass breaking sniffer is on glass without being directly installed on, but can be arranged on ceiling or wall, avoids robber to know object clearly and looks for another way again.Described glass breaking sniffer has improved the accuracy of glass breaking voice recognition greatly, avoids wrong report to bring and bothers, and can protect timely again our home.
The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model instructions and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (6)
1. a glass breaking sniffer, is characterized in that, comprises filter unit, amplifying unit and the main control unit of electrical connection successively;
Described filter unit comprises low-pass filter circuit module and the high-pass filtering circuit module of electrical connection successively, and the output terminal of described high-pass filtering circuit module is electrically connected with the input end of described amplifying unit;
Described main control unit comprises identification module and the processor module of electrical connection successively, and the input end of described identification module is electrically connected with the output terminal of described amplifying unit.
2. a kind of glass breaking sniffer according to claim 1, it is characterized in that, described identification module comprises control chip, light emitting diode, the first electric capacity, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the 9th resistance, the first switch, second switch, thumb-acting switch and power supply;
Second pin one end of described control chip connects thumb-acting switch the 8th terminal, and the other end connects ground connection after the first resistance; The 3rd pin one end of described control chip connects thumb-acting switch the 7th terminal, and the other end connects ground connection after the second resistance; The 4th pin one end of described control chip connects power supply, and the other end connects ground connection after the first electric capacity; The 5th pin one end of described control chip connects thumb-acting switch the 6th terminal, ground connection after other end connection the 4th resistance; The 6th pin one end of described control chip connects thumb-acting switch Five-terminals, and the other end is by ground connection after the 3rd resistance; The 7th pin of described control chip is connected power supply with one end after the 6th pin parallel connection by the 5th resistance, and the other end is by the 6th resistance eutral grounding;
The 8th pin one end of described control chip connects the output terminal of described amplifying unit, and the other end is by ground connection after the 7th resistance; Ground connection after the tenth pin one end connection the 8th resistance of described control chip, the other end connects the first switch, second switch and power supply successively; The direct ground connection of the 11 pin of described control chip; The 13 pin of described control chip connects the negative electrode of the 9th resistance and light emitting diode successively.
3. a kind of glass breaking sniffer according to claim 1, is characterized in that, described glass breaking sniffer also comprises radio reception microphone unit, and described radio reception microphone unit is electrically connected with the input end of described filter unit.
4. a kind of glass breaking sniffer according to claim 1, is characterized in that, described identification module just triggers processor module by pulse width in the pulse of 100-600 millisecond.
5. a kind of glass breaking sniffer according to claim 1, is characterized in that, described glass breaking sniffer also comprises shell, and described filter unit, amplifying unit and main control unit are installed in described shell, and described shell is provided with MIC.
6. a kind of glass breaking sniffer according to claim 1, is characterized in that, described glass breaking sniffer is installed on ceiling or wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420223116.7U CN203825747U (en) | 2014-05-04 | 2014-05-04 | A glass fragmentation detection apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420223116.7U CN203825747U (en) | 2014-05-04 | 2014-05-04 | A glass fragmentation detection apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203825747U true CN203825747U (en) | 2014-09-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420223116.7U Expired - Lifetime CN203825747U (en) | 2014-05-04 | 2014-05-04 | A glass fragmentation detection apparatus |
Country Status (1)
| Country | Link |
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| CN (1) | CN203825747U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104978810A (en) * | 2015-06-23 | 2015-10-14 | 浙江生辉照明有限公司 | Glass breakage detection device and method and LED lighting device |
| CN106355800A (en) * | 2015-07-14 | 2017-01-25 | 金宙科技有限公司 | Glass breakage warning apparatus and method |
| CN109187743A (en) * | 2018-08-27 | 2019-01-11 | 深圳市刻锐智能科技有限公司 | Glass breaking detection method, glass breaking alarm and storage medium |
-
2014
- 2014-05-04 CN CN201420223116.7U patent/CN203825747U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104978810A (en) * | 2015-06-23 | 2015-10-14 | 浙江生辉照明有限公司 | Glass breakage detection device and method and LED lighting device |
| CN106355800A (en) * | 2015-07-14 | 2017-01-25 | 金宙科技有限公司 | Glass breakage warning apparatus and method |
| CN109187743A (en) * | 2018-08-27 | 2019-01-11 | 深圳市刻锐智能科技有限公司 | Glass breaking detection method, glass breaking alarm and storage medium |
| CN109187743B (en) * | 2018-08-27 | 2021-04-13 | 深圳市刻锐智能科技有限公司 | Glass breakage detection method, glass breakage alarm and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140910 |