CN105518470A - Shock sensor and method for adjusting sensitivity thereof - Google Patents
Shock sensor and method for adjusting sensitivity thereof Download PDFInfo
- Publication number
- CN105518470A CN105518470A CN201380079407.1A CN201380079407A CN105518470A CN 105518470 A CN105518470 A CN 105518470A CN 201380079407 A CN201380079407 A CN 201380079407A CN 105518470 A CN105518470 A CN 105518470A
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- Prior art keywords
- vibration transducer
- sensitivity
- attack
- described vibration
- switch
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
- G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
- G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
- G01P15/0891—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values with indication of predetermined acceleration values
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/18—Prevention or correction of operating errors
- G08B29/20—Calibration, including self-calibrating arrangements
- G08B29/24—Self-calibration, e.g. compensating for environmental drift or ageing of components
- G08B29/26—Self-calibration, e.g. compensating for environmental drift or ageing of components by updating and storing reference thresholds
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/16—Actuation by interference with mechanical vibrations in air or other fluid
- G08B13/1654—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems
Abstract
Disclosed is a method for adjusting a sensitivity of a shock sensor which is used for sensing an attack on a facility equipped with the shock sensor, wherein the shock sensor is provided with a mode setting device and said method comprises the following steps: a) setting the shock sensor to an installation mode by means of the mode setting device and powering the shock sensor on (S1); b) simulating a desired attack in a predetermined time period and recording a amplitude of the attack in the predetermined time period by means of the shock sensor (S2); and c) determining the sensitivity of the shock sensor at least based on the amplitude of the attack (S3). Also disclosed is a corresponding shock sensor. The sensitivity of the shock sensor can be adjusted quickly, simply and accurately.
Description
Technical field
The present invention relates to a kind of for regulating the method for the sensitivity of vibration transducer, this vibration transducer is used for sensing the attack to the equipment being equipped with vibration transducer, the method by very fast, simply and perform exactly, and can the invention still further relates to a kind of vibration transducer of correspondence.
Background technology
Along with society and the development of technical progress, increasing convenience equipment, to appear in our daily life as automobile, motorcycle, ATM (automatic teller machine) (ATM) etc.These equipment need to assemble the alarm device to attack resistance usually, and when these equipment are attacked, alarm device can sense to be attacked and sends corresponding alarm, as audible alarm.
At present, alarm device normally vibration transducer.Also namely, determine whether equipment is attacked according to the vibration signal detected by vibration transducer.Existing vibration transducer mainly performs following detection method.Predetermined threshold value, compares the amplitude of the vibration signal detected by vibration transducer and described threshold value, and exceedes threshold value and mean that equipment is subject to and attack and send corresponding alarm thus.In some cases, except the amplitude that compares the vibration signal detected by vibration transducer and threshold value, go back the one or more decision condition of demand fulfillment, to reduce wrong report further or to fail to report.
Therefore, existing detection method relates to the amplitude of vibration signal and comparing of threshold value, and when threshold value sets too low, is easy to noise to think by mistake and attacks thus cause wrong report.Otherwise, when threshold value is set too high, then may miss some alarms and cause the larger loss of corresponding equipment.
It will be appreciated by persons skilled in the art that threshold value corresponds to the sensitivity of vibration transducer and vibration transducer is used in different occasion and place time need to regulate its sensitivity.Generally speaking, vibration transducer is provided with switch-operated response control.When vibration transducer is installed on equipment, installation personnel regulates sensitivity in the following manner by switch-operated response control: first set the threshold value estimated out by switch-operated response control according to his/her experience, then checks this threshold value by simulated strike.Therefore, this is a kind of trial and error and even can set up suitable sensitivity for specific occasion.In addition, adjustment of sensitivity is well very difficult and complicated.
Therefore, expect to provide a kind of for the sensor of the method for the sensitivity of vibration transducer and a kind of correspondence can be regulated fast, simply and exactly.
Summary of the invention
Based on problem existing in prior art, the object of the present invention is to provide and a kind ofly accurately can regulate the more easy method of the sensitivity of vibration transducer and the vibration transducer of correspondence.
In order to realize this object, on the one hand, the invention provides a kind of for regulating the method for the sensitivity of vibration transducer, described vibration transducer is used for sensing the attack suffered by the equipment being equipped with described vibration transducer, and described vibration transducer is provided with mode setting device and described method comprises the steps:
A) by described mode setting device described vibration transducer is set to Installation Modes and described vibration transducer is energized;
B) simulate within a predetermined period of time expectation attack and by the amplitude of the described attack in predetermined amount of time described in described vibration transducer record; And
C) sensitivity of described vibration transducer is at least determined based on the amplitude of described attack.
According to a preferred embodiment of the invention, described vibration transducer is provided with indicating member; And when described vibration transducer is set to described Installation Modes and is energized, there is the first instruction in described indicating member; And/or at the end of described predetermined amount of time, described indicating member sends the second instruction.
According to a preferred embodiment of the invention, described predetermined amount of time from described vibration transducer be configured to described Installation Modes and energising time point; And/or described predetermined amount of time is about 3 minutes.
According to a preferred embodiment of the invention, assessment or measurement environment noise and consider described environmental noise when determining the sensitivity of described vibration transducer or when simulating the attack of described expectation; And/or at least determine the sensitivity of described vibration transducer based on the peak swing of described attack, and the sensitivity of described vibration transducer be preferably specified to equal described attack peak swing or than the peak swing of described attack larger about 30%, about 20% or about 10%.
According to a preferred embodiment of the invention, the sensitivity of the vibration transducer determined is attached to the variable of the program in the microprocessor being stored in described vibration transducer or the register of described microprocessor, to make described vibration transducer can with the sensitivity operation determined; Or described vibration transducer is provided with switch-operated response control, and when determining the sensitivity of described vibration transducer, by described mode setting device, described vibration transducer is switched to normal mode from described Installation Modes, then set the sensitivity of the vibration transducer determined by described switch-operated response control.
According to a preferred embodiment of the invention, described switch-operated response control comprises DIP (dualinline-pinpackage) switch and a pot, described first DIP switch can be conditioned the range of sensitivity choosing described vibration transducer, and described pot can be conditioned the sensitivity setting described vibration transducer; When the vibration transducer in order to determine sensitivity and need regulate described first DIP switch time, described indicating member sends the 3rd instruction; When only needing to regulate described pot, described indicating member provides the 4th instruction being different from described 3rd instruction; And after described first DIP switch and described pot are conditioned, described indicating member is turned off or provides the five fingers being different from described 3rd instruction and described 4th instruction and shows.
According to a preferred embodiment of the invention, after the sensitivity of the vibration transducer determined is set, by described vibration transducer power-off; And when described vibration transducer is energized again, described vibration transducer will be placed in normal mode of operation to make described vibration transducer can with the sensitivity operation determined.
According to a preferred embodiment of the invention, described indicating member comprises or is configured to LED; And/or described mode setting device is configured to the second DIP switch; And/or described predetermined amount of time is adjustable.
To achieve these goals, on the other hand, the invention provides a kind of vibration transducer, described vibration transducer is for sensing the attack suffered by the equipment being equipped with described vibration transducer, and described vibration transducer comprises:
Sensing cell, described sensing cell is suitable for sensing attacks by described the vibration signal produced;
Mode setting device, described mode setting device is suitable for described vibration transducer to be set to Installation Modes, in described Installation Modes, allows the sensitivity at least determining described vibration transducer based on the amplitude of simulated strike; And
Microprocessor, described microprocessor is suitable at least carrying out vibration signal described in treatment and analysis based on the sensitivity of the vibration transducer determined.
According to a preferred embodiment of the invention, described vibration transducer also comprises switch-operated response control, and when determining the sensitivity of described vibration transducer, by means of described mode setting device, described vibration transducer is set to normal mode from described Installation Modes, then sets the sensitivity of the vibration transducer determined by means of described switch-operated response control.
According to a preferred embodiment of the invention, described switch-operated response control comprises the first DIP switch and pot, described first DIP switch can be conditioned the range of sensitivity choosing described vibration transducer, and described pot can be conditioned the sensitivity setting described vibration transducer; And/or described mode setting device is configured to the second DIP switch.
Accompanying drawing explanation
The present invention and advantage thereof are further appreciated reading the detailed description of some preferred example embodiment by reference to accompanying drawing.Described accompanying drawing is:
Fig. 1 is the block diagram of the basic element of character that one of vibration transducer preferred example embodiment is shown, this vibration transducer is for sensing the attack suffered by the equipment being equipped with this vibration transducer.
Fig. 2 is the process flow diagram of a preferred example embodiment of the method for the sensitivity illustrated for regulating vibration transducer.
Embodiment
Referring now to Fig. 1, the vibration transducer according to of the present invention one preferred example embodiment is described.As mentioned above, described vibration transducer is usually arranged on attack that some visual plants may be subject to sensor device and gives the alarm when determining to attack the true attack belonging to and may destroy equipment and/or may cause any property loss.
As shown in Figure 1, vibration transducer 1 mainly comprise sensing cell 2 as acceleration transducer, for regulate the switch-operated response control 3 of the sensitivity of vibration transducer 1, the alarm unit 5 at least given the alarm for helping to regulate the indicating member 4 of sensitivity, when true attack being detected with optics and/or voice mode and at least based on the sensitivity regulated, utilize preset program to carry out the microprocessor 6 for the treatment of and analysis vibration signal, wherein, described sensing cell 2 is for sampling to the vibration signal being passed to sensing cell 2.
Such as, sensing cell 2 is sampled to vibration signal with about 2kHz, the preferably sample frequency of 2kHz.
One skilled in the art will appreciate that indicating member 4 and alarm unit 5 are controlled by microprocessor 6.
Preferably, as shown in Figure 1, microprocessor 6 is electrically connected with the output terminal 8 of sensing cell 2 by serial peripheral interface (SPI) 7.
Preferably, when vibration transducer 1 to be arranged on equipment and to be configured to normal mode of operation, vibration transducer 1 can communicate with the control system (not shown) of equipment.
Generally speaking, the sensitivity of vibration transducer 1 corresponds to a certain threshold value.Such as, by comparing (and can additionally comparison attacks duration and scheduled duration) by what collect with threshold value by attacking the amplitude of vibration signal produced, microprocessor 6 is analyzed vibration signal and is given the alarm when determining that attack belongs to true attack.
According to a preferred embodiment of the invention, indicating member 4 can be or can comprise LED.
Such as, switch-operated response control 3 comprises the first DIP switch and pot (POT).First DIP switch is constructed to be permeable to set or choose different sensitivity levels (scope) for vibration transducer 1 as required, and pot is used for the sensitivity accurately setting vibration transducer 1.That is, the first DIP switch and pot coordination with one another are to set the sensitivity of vibration transducer 1.Once the first DIP switch and pot are conditioned, then microprocessor 6 can determine the sensitivity of vibration transducer 1 according to the first DIP switch and potentiometric adjusting position when vibration transducer 1 is energized.In this case, the sensitivity of vibration transducer 1 can keep always, until the first DIP switch and/or pot are regulated again.
Preferably, vibration transducer has four different sensitivity levels.
One skilled in the art will appreciate that switch-operated response control 3 is not limited to above-mentioned details and the device of any type of the sensitivity of vibration transducer 1 can be regulated all can be used.
As mentioned above, when being arranged on equipment by vibration transducer 1, often need the sensitivity requiring to regulate vibration transducer 1 according to different environment (environmental noise around such as vibration transducer 1) and application.Hereinafter, a kind of for regulating the preferred example embodiment of the method for the sensitivity of vibration transducer 1 to be explained with reference to Fig. 2.
Fig. 2 is the process flow diagram of the method for the sensitivity illustrated for regulating vibration transducer 1.The method comprises four steps as described below.
In first step S1, be installed in the appropriate position on equipment at vibration transducer 1 after, by mode setting device, vibration transducer 1 is set to that then Installation Modes makes vibration transducer 1 be energized.Now, the vibration transducer 1 ready step for simulated strike that can enter below.
One skilled in the art will appreciate that vibration transducer 1 also can be configured to Installation Modes before being mounted to the appropriate position on equipment.
According to a preferred example embodiment, mode setting device is the second DIP switch.
In second step S2, execution has the simulated operation of the attack of the amplitude of expectation to determine the sensitivity of vibration transducer 1.Preferably, noise can be assessed by installation personnel or measures by means of any suitable device, and determines the attack amplitude wanted on the basis considering noise.In the predetermined amount of time of simulated operation, simulated strike can be carried out by any proper implements and vibration transducer 1 records the amplitude of simulated strike in described predetermined amount of time.After described predetermined amount of time terminates, the amplitude based on simulated strike determines the sensitivity of vibration transducer 1.
Such as, the sensitivity of vibration transducer 1 is set to maximal value in the amplitude equaling recorded or is set to a preset value larger than the maximal value in recorded amplitude, such as larger about 30%, about 20%, about 10% etc.
One skilled in the art will appreciate that and only can also consider noise when determining the sensitivity of vibration transducer 1.
Such as, described predetermined amount of time can be about 3 minutes, be preferably 3 minutes.Preferably, described predetermined amount of time from the first step S1 vibration transducer 1 be energized time point automatically.Described predetermined amount of time can be stored in the program in microprocessor 6 programmed.According to a preferred example embodiment, described predetermined amount of time carrys out timing by means of the internal timer (not shown) of microprocessor 6.It is further preferred that described predetermined amount of time can regulate by means of the 3rd DIP switch or other suitable device any as required.One skilled in the art will appreciate that described predetermined amount of time can also from any time point performed after the first step.
Preferably, at the end of predetermined amount of time, microprocessor 6 can control indicating member 4 to send the instruction representing that simulated operation terminates.
Now, the sensitivity of the vibration transducer 1 determined can be attached to the variable of program or the register of microprocessor 6, can operate to make vibration transducer 1 with the described sensitivity determined.But if vibration transducer 1 is de-energized, the sensitivity so determined may be lost.In addition, although some technique devices that the sensitivity determined can be known by those skilled in the art and being stored, some users still wish manual adjustments, such as carry out the sensitivity of manual adjustments vibration transducer 1 by the first DIP switch and pot.For this reason, next step should be performed.
In the 3rd step S3, set the sensitivity of the vibration transducer 1 determined by switch-operated response control 3 (such as by the first DIP switch and pot).First, preferably by the second DIP switch, vibration transducer 1 is switched to normal mode from Installation Modes, under the help of indicating member 4 (such as LED), then preferably set the sensitivity of the vibration transducer 1 determined.Such as, when the sensitivity that microprocessor 6 is determined to determine needs adjustment the first DIP switch, then LED flash of light.After the first DIP switch regulates, LED no longer glistens.Now, if LED light yellow, then show to need to regulate pot.If LED has gone out, then show by good for the adjustment of sensitivity determined.
Preferably, after the sensitivity determined is conditioned, vibration transducer 1 is de-energized, and can work more reliably to make vibration transducer 1.In this case, next step should be performed.
In the 4th step S4, vibration transducer 1 is again energized and vibration transducer 1 will be placed in normal mode of operation automatically.In this case, when the amplitude of any attack is greater than the sensitivity of setting (and if having decision condition, then also must meet one or more decision condition), vibration transducer 1 will give the alarm.
Basic thought of the present invention is the sensitivity determining vibration transducer in Installation Modes based on the simulated strike of the amplitude with expectation.It is to be understood that attacking can be desired any type.Any method of above-mentioned basic thought and vibration transducer is adopted to fall within the scope of the invention.
Although some embodiments are illustrated, these embodiments only present by way of example, are not intended to limit scope of the present invention.Appended claim and their equivalent are intended to cover all remodeling dropped in scope and spirit of the present invention, substitute and change.
Claims (11)
1. for regulating a method for the sensitivity of vibration transducer, described vibration transducer is used for sensing the attack suffered by the equipment being equipped with described vibration transducer, and described vibration transducer is provided with mode setting device and described method comprises the steps:
A) by described mode setting device described vibration transducer is set to Installation Modes and described vibration transducer is energized;
B) simulate within a predetermined period of time expectation attack and by the amplitude of the described attack in predetermined amount of time described in described vibration transducer record; And
C) sensitivity of described vibration transducer is at least determined based on the amplitude of described attack.
2. method according to claim 1, is characterized in that,
Described vibration transducer is provided with indicating member; And
When described vibration transducer is set to described Installation Modes and is energized, there is the first instruction in described indicating member; And/or
At the end of described predetermined amount of time, described indicating member sends the second instruction.
3. method according to claim 1 and 2, is characterized in that,
Described predetermined amount of time from described vibration transducer be configured to described Installation Modes and energising time point; And/or
Described predetermined amount of time is about 3 minutes.
4. the method according to any one of claim 1-3, is characterized in that,
Assessment or measurement environment noise and consider described environmental noise when determining the sensitivity of described vibration transducer or when simulating the attack of described expectation; And/or
At least determine the sensitivity of described vibration transducer based on the peak swing of described attack, and the sensitivity of described vibration transducer be preferably specified to equal described attack peak swing or than the peak swing of described attack larger about 30%, about 20% or about 10%.
5. the method according to any one of claim 1-4, is characterized in that,
The sensitivity of the vibration transducer determined is attached to the variable of the program in the microprocessor being stored in described vibration transducer or the register of described microprocessor, to make described vibration transducer can with the sensitivity operation determined; Or
Described vibration transducer is provided with switch-operated response control, and when determining the sensitivity of described vibration transducer, by described mode setting device, described vibration transducer is switched to normal mode from described Installation Modes, then set the sensitivity of the vibration transducer determined by described switch-operated response control.
6. method according to claim 5, is characterized in that,
Described switch-operated response control comprises the first DIP switch and pot, and described first DIP switch can be conditioned the range of sensitivity choosing described vibration transducer, and described pot can be conditioned the sensitivity setting described vibration transducer;
When the vibration transducer in order to determine sensitivity and need regulate described first DIP switch time, described indicating member sends the 3rd instruction;
When only needing to regulate described pot, described indicating member provides the 4th instruction being different from described 3rd instruction; And
After described first DIP switch and described pot are conditioned, described indicating member is different from described 3rd instruction by the section of closing or provide and the described 4th the five fingers indicated show.
7. the method according to claim 5 or 6, is characterized in that,
After the sensitivity of the vibration transducer determined is set, by described vibration transducer power-off; And
When described vibration transducer is energized again, described vibration transducer will be placed in normal mode of operation to make described vibration transducer can with the sensitivity operation determined.
8. the method according to any one of claim 2-7, is characterized in that,
Described indicating member comprises or is configured to LED; And/or
Described mode setting device is configured to the second DIP switch; And/or
Described predetermined amount of time is adjustable.
9. a vibration transducer, described vibration transducer is for sensing the attack suffered by the equipment being equipped with described vibration transducer, and described vibration transducer comprises:
Sensing cell, described sensing cell is suitable for sensing attacks by described the vibration signal produced;
Mode setting device, described mode setting device is suitable for described vibration transducer to be set to Installation Modes, in described Installation Modes, allows the sensitivity at least determining described vibration transducer based on the amplitude of simulated strike; And
Microprocessor, described microprocessor is suitable at least carrying out vibration signal described in treatment and analysis based on the sensitivity of the vibration transducer determined.
10. vibration transducer according to claim 9, is characterized in that,
Described vibration transducer also comprises switch-operated response control, and when determining the sensitivity of described vibration transducer, by means of described mode setting device, described vibration transducer is set to normal mode from described Installation Modes, then sets the sensitivity of the vibration transducer determined by means of described switch-operated response control.
11. vibration transducers according to claim 10, is characterized in that,
Described switch-operated response control comprises the first DIP switch and pot, and described first DIP switch can be conditioned the range of sensitivity choosing described vibration transducer, and described pot can be conditioned the sensitivity setting described vibration transducer; And/or
Described mode setting device is configured to the second DIP switch.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2013/083135 WO2015032092A1 (en) | 2013-09-09 | 2013-09-09 | Shock sensor and method for adjusting sensitivity thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105518470A true CN105518470A (en) | 2016-04-20 |
| CN105518470B CN105518470B (en) | 2020-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380079407.1A Active CN105518470B (en) | 2013-09-09 | 2013-09-09 | Vibration sensor and sensitivity adjustment method thereof |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN105518470B (en) |
| AU (1) | AU2013400008B2 (en) |
| WO (1) | WO2015032092A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111354143A (en) * | 2018-12-20 | 2020-06-30 | 杭州海康威视数字技术股份有限公司 | Method and device for setting sensitivity of vibration detector |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2553131A (en) * | 2016-08-24 | 2018-02-28 | Orisec Ltd | Shock Sensor |
| GB201915489D0 (en) * | 2019-10-25 | 2019-12-11 | Essence Security International Esi Ltd | Shock detection device,system and method |
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2013
- 2013-09-09 AU AU2013400008A patent/AU2013400008B2/en active Active
- 2013-09-09 CN CN201380079407.1A patent/CN105518470B/en active Active
- 2013-09-09 WO PCT/CN2013/083135 patent/WO2015032092A1/en active Application Filing
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| CN111354143A (en) * | 2018-12-20 | 2020-06-30 | 杭州海康威视数字技术股份有限公司 | Method and device for setting sensitivity of vibration detector |
Also Published As
| Publication number | Publication date |
|---|---|
| AU2013400008B2 (en) | 2018-07-12 |
| WO2015032092A1 (en) | 2015-03-12 |
| CN105518470B (en) | 2020-08-18 |
| AU2013400008A1 (en) | 2016-03-31 |
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