CN104071119A - Alarming method and device - Google Patents
Alarming method and device Download PDFInfo
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- CN104071119A CN104071119A CN201310099400.8A CN201310099400A CN104071119A CN 104071119 A CN104071119 A CN 104071119A CN 201310099400 A CN201310099400 A CN 201310099400A CN 104071119 A CN104071119 A CN 104071119A
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Abstract
The invention provides an alarming method and an alarming device. The alarming method comprises the steps of: detecting a vibration signal; and judging whether acquired environmental sound satisfies the alarming conditions, if so, triggering an alarm. The alarming device comprises a vibration sensor for detecting the vibration signal, a sound sensor for acquiring the environmental sound, and a processor for judging whether the environmental sound acquired by the sound sensor satisfies the alarming conditions in the case that the vibration sensor detects the vibration signal; and if the environmental sound satisfies the alarming conditions, the alarm is triggered. The alarming method and the alarming device solve the problem of frequent occurrence of wrong alarming of an automatic alarming device in the prior art, and effectively reduces the wrong alarming of the alarming device so as to reduce the noise pollution caused by the wrong alarming.
Description
Technical field
The present invention relates to electronic technology field, in particular to a kind of alarm method and device.
Background technology
In recent years, the volume of holding of automobile is along with expanding economy is constantly soaring, but, because vehicle price costliness, be easy to resell, and be convenient to cartheft and escape, so for over 100 years more than a hundred years, automobile is one of favorite target of robber always, research shows, only in the U.S., within every 20 seconds, just have an automobile stolen.
Stolen in order to prevent automobile, on many automobiles, all assemble automatic alarm, can send actv. warning signal.In the time that automatic alarm is found the situation of doubtful robber's car, most automatic alarms all can give the alarm by modes such as ring loudspeaker, flicker headlights, many automatic alarms even can send multiple sharp-pointed alarm song, a large amount of noises can make it should be noted that cartheft, so most of carthefts, in the time that alarm is sounded, all can be fled the scene rapidly.
At present, more advanced automatic alarm adopts vibration sensor to realize more, and its principle of work is mainly the situation that the mode by detecting vibration signal detects doubtful robber's car.Fig. 1 is according to the processing flow chart of the automatic alarm of correlation technique, and as shown in Figure 1, the alarm triggered flow process of the automatic alarm in correlation technique comprises the following steps:
Step S102, vibration sensor detects vibration signal, now, automatic alarm can be thought may there is stealing the situation of car;
Step S104, the sound that automatic alarm gives the alarm, thus play fright robber's effect.
But in actual use, this automatic alarm is often too responsive to the variation of ambient environment, can produce many mistake alarms.For example, at Chinese traditional festival, people can set off many fireworks, and the impact that the sound that it is huge and explosion time produce ground, often can cause larger ground vibration, and this also can trigger automatic alarm and produce unnecessary alarm.In addition,, such as environmental factors such as thundering, rain, blow, all can produce vibration and then trigger automatic alarm and carry out alarm.This has not only produced noise emission, and excessively alarm meeting reduces car owner's prevention awareness frequently, thereby misses real warning information.
In fact, this problem not only appears on the automatic alarm of automobile, other automatic alarms, and for example, the alarm device of motor bike, Electrical Bicycle etc. exists equally to too sensitive issue of ambient sound.
Often the problem that produces mistake alarm for automatic alarm in correlation technique, not yet proposes actv. solution at present.
Summary of the invention
Often the problem that produces mistake alarm for automatic alarm in correlation technique, the invention provides a kind of alarm method and device, at least to address the above problem.
According to an aspect of the present invention, provide a kind of alarm method, having comprised:
Vibration signal detected;
Whether the ambient sound that judgement collects meets alarm conditions, if so, triggers alarm.
Preferably, alarm conditions comprise one of following:
The decibels of ambient sound is less than first threshold;
Ambient sound with the matching degree of sample sound of scene that can trigger mistake alarm lower than Second Threshold;
The decibels of ambient sound is not less than first threshold, and ambient sound and the matching degree of sample sound of scene that can trigger mistake alarm are lower than Second Threshold.
Preferably, ambient sound and the definite mode of the matching degree of the sample sound of the scene of alarm by mistake that can trigger comprise:
Ambient sound is carried out to analogue to digital conversion, obtain the ambient sound of array form;
The sample sound of the scene that can trigger mistake alarm of the ambient sound of array form and array form is compared, obtain matching degree.
Preferably, the ambient sound collecting in judgement also comprises before whether meeting alarm conditions: accept the setting of the sample sound of the scene to triggering mistake alarm by man machine interface.
Preferably, triggering alarm comprises:
Triggering alarm device is sounded the alarm; And/or,
Warning information is passed to Engine ECU by gateway Gateway, Engine ECU locking driving engine.
According to another aspect of the present invention, provide a kind of alarm device, having comprised:
Vibration sensor, for detection of vibration signal;
Sound transducer, for gathering ambient sound;
Treater, in the situation that vibration sensor detects vibration signal, judges whether the ambient sound of sound transducer collection meets alarm conditions, if so, triggers alarm.
Preferably, treater comprises:
The first comparing unit, for decibels and the first threshold of the ambient sound that relatively sound transducer gathers;
Alarm triggered unit, for triggering alarm;
The first scheduling unit, in the situation that vibration sensor detects vibration signal, calls the first comparing unit, is less than first threshold if the comparative result of the first comparing unit is decibels, calls alarm triggered unit.
Preferably, treater comprises:
The second comparing unit, for comparing the ambient sound of sound transducer collection and can triggering matching degree and the Second Threshold of the sample sound of the scene of alarm by mistake;
Alarm triggered unit, for triggering alarm;
The second scheduling unit, in the situation that vibration sensor detects vibration signal, calls the second comparing unit, if the comparative result of the second comparing unit be matching degree lower than Second Threshold, call alarm triggered unit.
Preferably, treater comprises:
The first comparing unit, for decibels and the first threshold of the ambient sound that relatively sound transducer gathers;
The second comparing unit, for comparing the ambient sound of sound transducer collection and can triggering matching degree and the Second Threshold of the sample sound of the scene of alarm by mistake;
Alarm triggered unit, for triggering alarm;
The 3rd scheduling unit, for in the situation that vibration sensor detects vibration signal, call the first comparing unit and the second comparing unit, if being decibels, the comparative result of the first comparing unit is not less than first threshold, and the comparative result of the second comparing unit be matching degree lower than Second Threshold, call alarm triggered unit.
Preferably, this device also comprises: sample storage unit, for storing the sample sound of the scene that can trigger mistake alarm;
Treater also comprises: AD conversion unit, for the ambient sound of sound transducer collection is carried out to analogue to digital conversion, obtains the ambient sound of array form; Sound Match unit, for the sample sound of the scene that can trigger mistake alarm of the ambient sound of array form of AD conversion unit acquisition and the array form of sample storage unit storage is compared, obtains matching degree.
Preferably, this device also comprises:
Man machine interface, for accepting triggering the setting of the sample sound of the scene of alarm by mistake.
Preferably, treater is positioned at electronic control unit ECU, and device also comprises the alarm device being connected with ECU, and treater is used for:
In the case of judging that the ambient sound of sound transducer collection meets alarm conditions, trigger alarm device and sound the alarm.
Preferably, treater is positioned at ECU, and treater is used for:
In the case of judging that the ambient sound of sound transducer collection meets alarm conditions, warning information is passed to Engine ECU by gateway Gateway, trigger Engine ECU locking driving engine.
By the present invention, in the situation that vibration signal being detected, whether the ambient sound that judgement collects meets alarm conditions, if satisfied trigger alarm, solve automatic alarm in correlation technique and often produced the problem of mistake alarm, effectively reduce the mistake alarm of alarm device, thereby reduced the caused noise emission of mistake alarm.
Brief description of the drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is according to the processing flow chart of the automatic alarm of correlation technique;
Fig. 2 is according to the structured flowchart of the alarm device of the embodiment of the present invention;
Fig. 3 is the first preferred structure block diagram according to the alarm device of the embodiment of the present invention;
Fig. 4 is the second preferred structure block diagram according to the alarm device of the embodiment of the present invention;
Fig. 5 is the 3rd preferred structure block diagram according to the alarm device of the embodiment of the present invention;
Fig. 6 is the 4th preferred structure block diagram according to the alarm device of the embodiment of the present invention;
Fig. 7 is the 5th preferred structure block diagram according to the alarm device of the embodiment of the present invention;
Fig. 8 is the 6th preferred structure block diagram according to the alarm device of the embodiment of the present invention;
Fig. 9 triggers according to the alarm device of the embodiment of the present invention schematic diagram that alarm device is sounded the alarm;
Figure 10 is the schematic diagram that triggers Engine ECU locking driving engine according to the alarm device of the embodiment of the present invention;
Figure 11 is according to the diagram of circuit of the alarm method of the embodiment of the present invention;
Figure 12 carries out the diagram of circuit of the alarm method of alarm according to the embodiment of the present invention based on decibels;
Figure 13 relatively carries out the diagram of circuit of the alarm method of alarm according to the embodiment of the present invention based on sound;
Figure 14 carries out the diagram of circuit of the alarm method of alarm according to the embodiment of the present invention based on decibels harmony signal to noise ratio.
Detailed description of the invention
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the application can combine mutually.
In correlation technique, automatic alarm, in the situation that vibration signal being detected, triggers alarm.But sound often also can produce vibration, therefore, this automatic alarm is often too responsive to ambient sound, often produces mistake alarm.The embodiment of the present invention provides a kind of improved alarm device.Fig. 2 is according to the structured flowchart of the alarm device of the embodiment of the present invention, and as shown in Figure 2, this alarm device comprises:
Vibration sensor 22, for detection of vibration signal;
Sound transducer 24, for gathering ambient sound;
Treater 26, is coupled to vibration sensor 22 and sound transducer 24, in the situation that vibration sensor 22 detects vibration signal, judges that whether the ambient sound that sound transducer 24 gathers meets alarm conditions, if so, triggers alarm.
In this alarm device, in the situation that vibration sensor 22 detects vibration signal, treater 26 judges whether the ambient sound that sound transducer 24 gathers meets alarm conditions, in the situation that ambient sound meets alarm conditions, trigger alarm, solve automatic alarm in correlation technique and often produced the problem of mistake alarm, effectively reduced the mistake alarm of alarm device, thereby reduced the caused noise emission of mistake alarm.
Above alarm conditions can be set with reference to the situation of various generation mistake alarm in practical application.Below provide several preferred alarm conditions settings, it should be noted that, under actual conditions, be not limited to following several settings of enumerating.
(1) sound that decibels is larger easily produces the appreciable vibration of vibration sensor 22, therefore, may cause the mistake alarm of alarm device.For the factor of this mistake alarm, can alarm conditions be set to: detect after vibration, at the decibels of ambient sound lower than an empirical value (, first threshold, for example be made as based on experience value 90 decibels) situation under, thinking that this vibration signal is not the vibration being triggered by ambient sound, may be a real robber parking lot scape, should carry out alarm.
Fig. 3 is the first preferred structure block diagram according to the alarm device of the embodiment of the present invention, and as shown in Figure 3, treater 26 can comprise:
The first comparing unit 32, is coupled to sound transducer 24, for decibels and the first threshold of the ambient sound that relatively sound transducer 24 gathers;
Alarm triggered unit 34, for triggering alarm;
The first scheduling unit 36, be coupled to vibration sensor 22, the first comparing unit 32 and alarm triggered unit 34, for in the situation that vibration sensor 22 detects vibration signal, call the first comparing unit 32, be less than first threshold if the comparative result of the first comparing unit 32 is decibels, call alarm triggered unit 34.
By above structure, alarm device can detect after vibration, further judge the decibel value of ambient sound, and then the scene that meets alarm conditions is reported to the police.Determined whether and belonged to mistake alarm by the decibels of ambient sound, only need the ambient sound to collecting to carry out decibel value detection, this mode implements very simple, and the cost of alarm device is also lower.
(2) under actual conditions, several specific scenes very easily cause the mistake alarm of alarm device often, for example, firecracker, thunder, rain, blow hard etc., therefore, in order to realize alarm filter more targetedly, the sample sound that some can trigger the scene of alarm device generation mistake alarm can be set, and alarm conditions are set to: detect after vibration, (matching degree at ambient sound and above sample sound is less than an empirical value, Second Threshold, for example rule of thumb be made as 80%) situation under, think that this vibration signal is not the vibration being triggered by above specific scene, it may be a real robber parking lot scape, should carry out alarm.
Fig. 4 is the second preferred structure block diagram according to the alarm device of the embodiment of the present invention, and as shown in Figure 4, treater 26 can comprise:
The second comparing unit 42, is coupled to sound transducer 24, the ambient sound gathering for comparison sound transducer 24 and matching degree and the Second Threshold that can trigger the sample sound of the scene of missing alarm;
Alarm triggered unit 34, for triggering alarm;
The second scheduling unit 44, be coupled to vibration sensor 22, the second comparing unit 42 and alarm triggered unit 34, for in the situation that vibration sensor 22 detects vibration signal, call the second comparing unit 42, if the comparative result of the second comparing unit 42 be matching degree lower than Second Threshold, call alarm triggered unit 34.
By above structure, alarm device can detect after vibration, further judges that whether the ambient sound gathering matches with the sample sound of the scene that can trigger mistake alarm, and then the scene that meets alarm conditions is reported to the police.By ambient sound and specific sample sound are compared, in the situation that judging matching degree not higher than Second Threshold, trigger alarm, this mode can realize alarm filter more targetedly, thereby alarm control is become more meticulous more.
(3) in actual applications, the judgement of the judgement of the decibels of ambient sound and matching degree can be combined, alarm conditions are set to: detect after vibration, be not less than first threshold at the decibels of ambient sound, further matching degree and the Second Threshold of ambient sound and above sample sound are compared, in matching degree lower than Second Threshold in the situation that, although think that this vibration signal may be because higher sound triggers, but, this sound and default sample sound also do not meet, it may be a real robber parking lot scape, or automobile is suffering human damage, should carry out alarm.
Fig. 5 is the 3rd preferred structure block diagram according to the alarm device of the embodiment of the present invention, and as shown in Figure 5, treater 26 can comprise:
The first comparing unit 32, is coupled to sound transducer 24, for decibels and the first threshold of the ambient sound that relatively sound transducer 24 gathers;
The second comparing unit 42, is coupled to sound transducer 24, the ambient sound gathering for comparison sound transducer 24 and matching degree and the Second Threshold that can trigger the sample sound of the scene of missing alarm;
Alarm triggered unit 34, for triggering alarm;
The 3rd scheduling unit 52, be coupled to vibration sensor 22, the first comparing unit 32, the second comparing unit 42 and alarm triggered unit 34, for in the situation that vibration sensor 22 detects vibration signal, call the first comparing unit 32 and the second comparing unit 42, if being decibels, the comparative result of the first comparing unit 32 is not less than first threshold, and the comparative result of the second comparing unit 42 be matching degree lower than Second Threshold, call alarm triggered unit 34.
By above structure, alarm device can detect after vibration, whether the decibels that further judges the ambient sound gathering exceeds first threshold, and judge that whether the ambient sound gathering matches with the sample sound of the scene that can trigger mistake alarm, and then the scene that meets alarm conditions is reported to the police.
In above preferred embodiment, the second comparing unit 42 of treater 26 need to obtain ambient sound and can trigger the matching degree of the sample sound of the scene of alarm by mistake, in view of Sound Match technology is in present stage comparative maturity, does not do more introduction at this.For the integraty of describing, below provide a kind of mode of preferred acquisition matching degree, which can be applied to the alarm device that the embodiment of the present invention provides, but, those skilled in the art are to be understood that, other Sound Match mode also can be applied to the alarm device that the embodiment of the present invention provides, and the mode of the following acquisition matching degree providing is provided.
This alarm device can also comprise: sample storage unit 62, for storing the sample sound of the scene that can trigger mistake alarm; Treater 26 can also comprise: AD conversion unit 64, be coupled to sound transducer 24, and carry out analogue to digital conversion for the ambient sound that sound transducer 24 is gathered, obtain the ambient sound of array form; Sound Match unit 66, be coupled to AD conversion unit 64 and sample storage unit 62, compare for the ambient sound of array form and the sample sound of the scene of alarm by mistake that can trigger of the array form that sample storage unit 62 is stored that AD conversion unit 62 is obtained, obtain matching degree.
This structure can obtain ambient sound and can trigger the matching degree of the sample sound of the scene of alarm by mistake, in one embodiment, structure more than can increasing on the basis of structure shown in Fig. 4, Fig. 6 is the 4th preferred structure block diagram according to the alarm device of the embodiment of the present invention, as shown in Figure 6, Sound Match unit 66 is coupled to the second comparing unit 42, and like this, the matching degree that Sound Match unit 66 is exported can be for the second comparing unit 42 foundation as a comparison.In another embodiment, structure more than can increasing on the basis of structure shown in Fig. 5, Fig. 7 is the 5th preferred structure block diagram according to the alarm device of the embodiment of the present invention, as shown in Figure 7, Sound Match unit 66 is coupled to the second comparing unit 42, like this, the matching degree that Sound Match unit 66 is exported can be for the second comparing unit 42 foundation as a comparison.
It should be noted that, in above Fig. 6 and Fig. 7, show sample storage unit 62 and be positioned at the situation of treater 26 outsides, still, it will be appreciated by those skilled in the art that sample storage unit 62 also can be positioned at treater 26 inside (for example, built-in flash).The sample sound that specifically can trigger the scene of mistake alarm is placed on the inner still outside of treater 26, can design according to actual conditions, concrete Consideration includes but not limited to: the surplus of treater 26 internal storage spaces, can trigger the sample sound of the scene of mistake alarm quantity, can trigger size and/or treatment effeciency that the sample sound of the scene of mistake alarm takes up space.
Fig. 8 is the 6th preferred structure block diagram according to the alarm device of the embodiment of the present invention, as shown in Figure 8, one preferred embodiment in, this alarm device also comprises: man machine interface 82, for accepting the setting of sample sound of the scene to triggering mistake alarm.This mode can really realize the alarm filter of customization, for example, near the situation that exists construction to lay the foundations in the recent period certain community, user place, its vibrations that cause often trigger alarm device and miss alarm, this has obviously run counter to the original intention of user installation alarm device, now, user can be by the man machine interface typing sample of sound of laying the foundations, thereby effectively filters the situation of this mistake alarm.
In the situation that alarm device determines that ambient sound meets alarm conditions, treater 26 can trigger alarm.In a preferred embodiment, treater 26 can be positioned at electronic control unit (Electronic Control Unit, referred to as ECU) in, thereby be convenient to the device that is connected with ECU or device according to the triggering of treater 26, realize corresponding alarm function, include but not limited to sound the alarm, lock driving engine, transmit warning information etc. to user.When the ECU that needs the device that triggers or device to connect at the residing ECU of treater 26 and treater 26 is different, can carry out information transmission by the bus such as lin, CAN, if desired (for example, treater 26 is positioned at vehicle body ECU, and it need to trigger the situation of Engine ECU), can adopt gateway (Gateway) as transfer.The processing scene of driving engine is sounded the alarm, locked to following casehistory, it will be appreciated by those skilled in the art that according to actual needs, and the alarm that treater 26 sends is not limited to following example.
Fig. 9 triggers according to the alarm device of the embodiment of the present invention schematic diagram that alarm device is sounded the alarm, as shown in Figure 9, treater 26 can be positioned at ECU92, the alarm device of the embodiment of the present invention can also comprise the alarm device 94 being connected with ECU92, treater 26 is in the situation that judging that ambient sound meets alarm conditions, triggering alarm device 94 sounds the alarm, in a preferred embodiment, if adopt structure shown in Fig. 3-5 to carry out the judgement of alarm conditions, can trigger alarm device 94 by the alarm triggered unit 34 shown in Fig. 3-5 and sound the alarm.
Figure 10 is the schematic diagram that triggers Engine ECU locking driving engine according to the alarm device of the embodiment of the present invention, as shown in figure 10, treater 26 can be positioned at ECU102 ', treater 26 is in the situation that judging that ambient sound meets alarm conditions, warning information is passed through to Gateway104 ' and pass to Engine ECU 106 ', trigger Engine ECU 106 ' locking driving engine, in a preferred embodiment, carry out the judgement of alarm conditions if adopt structure shown in Fig. 3-5, can warning information be passed through to Gateway104 ' by the alarm triggered unit 34 shown in Fig. 3-5 and pass to Engine ECU 106 ', trigger Engine ECU 106 ' locking driving engine.
The embodiment of the present invention also provides a kind of alarm method, and Figure 11 is according to the diagram of circuit of the alarm method of the embodiment of the present invention, and as shown in figure 11, this alarm method comprises:
Step S1102, detects vibration signal;
Step S1104, whether the ambient sound that judgement collects meets alarm conditions, if so, triggers alarm.
In this alarm method, in the situation that vibration signal being detected, judge whether the ambient sound gathering meets alarm conditions, in the situation that ambient sound meets alarm conditions, trigger alarm, solve automatic alarm in correlation technique and often produced the problem of mistake alarm, effectively reduced the mistake alarm of alarm device, thereby reduced the caused noise emission of mistake alarm.
Above alarm conditions can be set with reference to the situation of various generation mistake alarm in practical application.Below provide several preferred alarm conditions settings, it should be noted that, under actual conditions, be not limited to following several settings of enumerating.
(1) sound that decibels is larger easily produces appreciable vibration, therefore, may cause the mistake alarm of alarm device.For the factor of this mistake alarm, can alarm conditions be set to: detect after vibration, at the decibels of ambient sound lower than an empirical value (, first threshold, for example be made as based on experience value 90 decibels) situation under, thinking that this vibration signal is not the vibration being triggered by ambient sound, may be a real robber parking lot scape, should carry out alarm.
Figure 12 carries out the diagram of circuit of the alarm method of alarm according to the embodiment of the present invention based on decibels.As shown in figure 12, in the situation that alarm conditions are set to decibels lower than first threshold, this alarm method comprises the following steps:
Step S1202, detects vibration signal;
Step S1204, judges that the decibels of ambient sound, whether lower than first threshold, if so, performs step S1206, otherwise, execution step S1208;
Step S1206, triggers alarm;
Step S1208, does not trigger alarm.
Determined whether and belonged to mistake alarm by the decibels of ambient sound, this mode implements very simple, and cost is also lower.
(2) under actual conditions, several specific scenes very easily cause the mistake alarm of alarm device often, for example, firecracker, thunder, rain, blow hard etc., therefore, in order to realize alarm filter more targetedly, the sample sound that some can trigger the scene of alarm device generation mistake alarm can be set, and alarm conditions are set to: detect after vibration, (matching degree at ambient sound and above sample sound is less than an empirical value, Second Threshold, for example rule of thumb be made as 80%) situation under, think that this vibration signal is not the vibration being triggered by above specific scene, it may be a real robber parking lot scape, should carry out alarm.
Figure 13 relatively carries out the diagram of circuit of the alarm method of alarm according to the embodiment of the present invention based on sound.As shown in figure 13, be set to ambient sound and can trigger the matching degree of the sample sound of the scene of alarm be by mistake less than Second Threshold in alarm conditions, this alarm method comprises the following steps:
Step S1302, detects vibration signal;
Step 1304, judge ambient sound with the matching degree of sample sound of scene that can trigger mistake alarm lower than Second Threshold, if so, perform step S1306, otherwise, execution step S1308;
Step S1306, triggers alarm;
Step S1308, does not trigger alarm.
By ambient sound and specific sample sound are compared, in the situation that judging matching degree not higher than Second Threshold, trigger alarm, this mode can realize alarm filter more targetedly, thereby alarm control is become more meticulous more.
(3) in actual applications, the judgement of the judgement of the decibels of ambient sound and matching degree can be combined, alarm conditions are set to: detect after vibration, be not less than first threshold at the decibels of ambient sound, further matching degree and the Second Threshold of ambient sound and above sample sound are compared, in matching degree lower than Second Threshold in the situation that, although think that this vibration signal may be because higher sound triggers, but, this sound and default sample sound also do not meet, it may be a real robber parking lot scape, or automobile is suffering human damage, should carry out alarm.
Figure 14 carries out the diagram of circuit of the alarm method of alarm according to the embodiment of the present invention based on decibels harmony signal to noise ratio.As shown in figure 14, be set to decibels be not less than first threshold in alarm conditions, and ambient sound and the matching degree of sample sound that can trigger the scene of mistake alarm be less than in the situation of Second Threshold, this alarm method comprises the following steps:
Step S1402, detects vibration signal;
Step S1404, judges that the decibels of ambient sound, whether lower than first threshold, if so, performs step S1408, otherwise, execution step S1406;
Step S1406, judge ambient sound with the matching degree of sample sound of scene that can trigger mistake alarm lower than Second Threshold, if so, perform step S1408, otherwise, execution step S1410;
Step S1408, triggers alarm;
Step S1410, does not trigger alarm.
Preferably, ambient sound can be determined in the following manner with the matching degree of the sample sound that can trigger the scene of missing alarm:
Ambient sound is carried out to analogue to digital conversion, obtain the ambient sound of array form;
The sample sound (can be stored in flash) of the scene that can trigger mistake alarm of the ambient sound of array form and array form is compared, obtain matching degree.
Preferably, the ambient sound collecting in judgement also comprises before whether meeting alarm conditions: accept the setting of the sample sound of the scene to triggering mistake alarm by man machine interface.This mode can really realize the alarm filter of customization, for example, near the situation that exists construction to lay the foundations in the recent period certain community, user place, its vibrations that cause often trigger alarm device and miss alarm, this has obviously run counter to the original intention of user installation alarm device, now, user can be by the man machine interface typing sample of sound of laying the foundations, thereby effectively filters the situation of this mistake alarm.
Preferably, in the situation that alarm device determines that ambient sound meets alarm conditions, can trigger alarm, specifically can trigger in the following ways alarm: trigger alarm device and sound the alarm; And/or, warning information is passed to Engine ECU by gateway Gateway, Engine ECU locking driving engine.It will be appreciated by those skilled in the art that according to actual needs, can also adopt other alarm mode, be not limited to two kinds of above modes.
The alarm method that the embodiment of the present invention provides and device be applicable to the alarm of all kinds of road transports, for example, and automobile, motor bike, battery-driven car etc.From above description, can find out, the scheme that the embodiment of the present invention provides is in the situation that vibration signal being detected, whether the ambient sound that judgement collects meets alarm conditions, if satisfied trigger alarm, solve automatic alarm in correlation technique and often produced the problem of mistake alarm, effectively reduced the mistake alarm of alarm device, thereby reduced the caused noise emission of mistake alarm.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general computer device, they can concentrate on single computer device, or be distributed on the network that multiple computer devices form, alternatively, they can be realized with the executable program code of computer device, thereby, they can be stored in memory storage and be carried out by computer device, and in some cases, can carry out shown or described step with the order being different from herein, or they are made into respectively to each integrated circuit modules, or the multiple modules in them or step are made into single integrated circuit module to be realized.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (13)
1. an alarm method, is characterized in that, comprising:
Vibration signal detected;
Whether the ambient sound that judgement collects meets alarm conditions, if so, triggers alarm.
2. method according to claim 1, is characterized in that, it is one of following that described alarm conditions comprise:
The decibels of described ambient sound is less than first threshold;
Described ambient sound with the matching degree of sample sound of scene that can trigger mistake alarm lower than Second Threshold;
The decibels of described ambient sound is not less than first threshold, and described ambient sound with the matching degree of sample sound of scene that can trigger mistake alarm lower than Second Threshold.
3. method according to claim 2, is characterized in that, described ambient sound and the definite mode of the described matching degree of the sample sound of the scene of alarm by mistake that can trigger comprise:
Described ambient sound is carried out to analogue to digital conversion, obtain the ambient sound of array form;
The sample sound of the scene that can trigger mistake alarm of the ambient sound of described array form and array form is compared, obtain described matching degree.
4. method according to claim 2, is characterized in that, the ambient sound collecting in judgement also comprises before whether meeting alarm conditions: accept the setting of the described sample sound of the scene to triggering mistake alarm by man machine interface.
5. according to the method described in any one in claim 1-4, it is characterized in that, trigger alarm and comprise:
Triggering alarm device is sounded the alarm; And/or,
Warning information is passed to Engine ECU by gateway Gateway, described Engine ECU locking driving engine.
6. an alarm device, is characterized in that, comprising:
Vibration sensor, for detection of vibration signal;
Sound transducer, for gathering ambient sound;
Treater, in the situation that described vibration sensor detects vibration signal, judges whether the described ambient sound of described sound transducer collection meets alarm conditions, if so, triggers alarm.
7. device according to claim 6, is characterized in that, described treater comprises:
The first comparing unit, decibels and the first threshold of the described ambient sound gathering for more described sound transducer;
Alarm triggered unit, for triggering alarm;
The first scheduling unit, in the situation that described vibration sensor detects vibration signal, calls described the first comparing unit, is less than described first threshold if the comparative result of described the first comparing unit is described decibels, calls described alarm triggered unit.
8. device according to claim 6, is characterized in that, described treater comprises:
The second comparing unit, for the described ambient sound of more described sound transducer collection and matching degree and the Second Threshold of sample sound of scene that can trigger mistake alarm;
Alarm triggered unit, for triggering alarm;
The second scheduling unit, in the situation that described vibration sensor detects vibration signal, calls described the second comparing unit, if the comparative result of described the second comparing unit be described matching degree lower than described Second Threshold, call described alarm triggered unit.
9. device according to claim 6, is characterized in that, described treater comprises:
The first comparing unit, decibels and the first threshold of the described ambient sound gathering for more described sound transducer;
The second comparing unit, for the described ambient sound of more described sound transducer collection and matching degree and the Second Threshold of sample sound of scene that can trigger mistake alarm;
Alarm triggered unit, for triggering alarm;
The 3rd scheduling unit, for in the situation that described vibration sensor detects vibration signal, call described the first comparing unit and described the second comparing unit, if being described decibels, the comparative result of described the first comparing unit is not less than described first threshold, and the comparative result of described the second comparing unit be described matching degree lower than described Second Threshold, call described alarm triggered unit.
10. device according to claim 8 or claim 9, is characterized in that,
Described device also comprises: sample storage unit, for storing the described sample sound of the scene that can trigger mistake alarm;
Described treater also comprises: AD conversion unit, carry out analogue to digital conversion for the described ambient sound to described sound transducer collection, and obtain the ambient sound of array form; Sound Match unit, for the sample sound of the scene that can trigger mistake alarm of the ambient sound of described array form of described AD conversion unit acquisition and the array form of described sample storage unit storage is compared, obtains described matching degree.
11. devices according to claim 8 or claim 9, is characterized in that, also comprise:
Man machine interface, for accepting triggering the setting of the described sample sound of the scene of alarm by mistake.
12. according to the device described in any one in claim 6-9, it is characterized in that, described treater is positioned at electronic control unit ECU, and described device also comprises the alarm device being connected with described ECU, and described treater is used for:
Meet described alarm conditions at the described ambient sound that judges described sound transducer collection, trigger described alarm device and sound the alarm.
13. according to the device described in any one in claim 6-9, it is characterized in that, described treater is positioned at ECU, and described treater is used for:
Meet described alarm conditions at the described ambient sound that judges described sound transducer collection, warning information is passed to Engine ECU by gateway Gateway, trigger described Engine ECU locking driving engine.
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| CN201310099400.8A CN104071119A (en) | 2013-03-26 | 2013-03-26 | Alarming method and device |
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| CN201310099400.8A CN104071119A (en) | 2013-03-26 | 2013-03-26 | Alarming method and device |
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| CN104071119A true CN104071119A (en) | 2014-10-01 |
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