CN107024726B - Anti- electronic equipment accidentally removes detection device - Google Patents
Anti- electronic equipment accidentally removes detection device Download PDFInfo
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- CN107024726B CN107024726B CN201710202089.3A CN201710202089A CN107024726B CN 107024726 B CN107024726 B CN 107024726B CN 201710202089 A CN201710202089 A CN 201710202089A CN 107024726 B CN107024726 B CN 107024726B
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- acceleration
- photosensitive sensors
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- light
- angle
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
- G01V8/12—Detecting, e.g. by using light barriers using one transmitter and one receiver
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- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Emergency Alarm Devices (AREA)
Abstract
The present invention provides a kind of anti-electronic equipments accidentally to remove detection device, because photosensitive sensors are mounted on the circuit board inside electronic product, light inlet is provided on shell, so when electronic product is removed, into the light enhancing in shell, photosensitive sensors experience luminous intensity and send processing unit for intensity information, acceleration transducer is mounted on electronic product, for detecting the acceleration of electronic product, and processing unit is sent by acceleration information, setup unit is for setting light sensation intensity threshold and the twice threshold value of the angle between acceleration, processing unit judges whether electronic equipment is removed according to the angle between luminous intensity and two acceleration, alarm unit is alarmed according to the processing result of processing unit, therefore it avoids since installation question leads to light leakage to generate wrong report, solves object simultaneously During exercise using the limitation of acceleration transducer detection, the accuracy of device detection is improved.
Description
Technical field
The invention belongs to detection technique fields, and in particular to a kind of anti-electronic equipment mistake dismounting detection device.
Background technique
Part electronic monitoring product is mounted on such as vehicle, on container and other items, for monitoring its driving behavior or chasing after
Its action path of track.These electronic monitoring products have to be mounted on these monitored objects, could to these objects into
Row monitoring, it then becomes necessary to learn whether such monitoring electronic product is planned outer dismounting.
Currently, installing photosensitive sensors above some electronic monitoring products, sentenced using the light of photosensitive sensors acquisition
Whether disconnected equipment is removed, and some electronic monitoring products install acceleration transducer, the electronics acquired using acceleration transducer
The acceleration of product is monitored to judge whether equipment is removed.However, this electron-like prison of installation photosensitive sensors on the market
Control product may lead to light leakage due to installation question to generate wrong report；Although and acceleration transducer can provide Sensor and fix
Three axis stress size, detect the movement of object, but since object is inherently constantly moving, cause to be difficult single
Slave acceleration transducer judge whether equipment is removed.
Summary of the invention
The present invention be to solve the above-mentioned problems and carry out, and it is an object of the present invention to provide one kind can accurate detection go out electronics
The anti-electronic equipment whether equipment is removed accidentally removes detection device.
The present invention provides a kind of anti-electronic equipments accidentally to remove detection device, is mounted on electronic product, electronic product
There are gaps between circuit board and shell characterized by comprising photosensitive sensors, installation is on circuit boards；Acceleration sensing
Device is mounted on electronic product；Setup unit, for setting the threshold value of the angle between intensity threshold and two acceleration；
Storage unit, for storing the acceleration when threshold value and stable state of intensity threshold, angle；Processing unit, with photosensitive sensors,
Acceleration transducer connection, for receiving the signal of photosensitive sensors and acceleration transducer transmission and being handled；And report
Alert unit, connect with processing unit, issues alarm signal according to the processing result of processing unit, wherein shell and light sensation sense
Device it is opposite be provided with light inlet on one side, processing unit first by light intensity signal that the photosensitive sensors received are sent with set
The intensity threshold of order member setting is compared, if light intensity signal is greater than intensity threshold, calculates this brief acceleration
The angle between acceleration direction when the acceleration direction that sensor is sent and stable state, if angle is set greater than setup unit
Angle threshold value, then send result to alarm unit, alarm unit issues alarm signal.
Further, it accidentally removes in detection device, can also have the following features: in anti-electronic equipment provided by the invention
Wherein, the distance of position of the photosensitive sensors on the circuit board to the light inlet is the shortest distance.
Further, it accidentally removes in detection device, can also have the following features: in anti-electronic equipment provided by the invention
Wherein, light-guiding pillar is provided between light inlet and the photosensitive sensors.
Further, it accidentally removes in detection device, can also have the following features: in anti-electronic equipment provided by the invention
Wherein, acceleration when stable state is the steady-state value that the real-time acceleration information sent according to acceleration transducer obtains, and
Acceleration when stable state needs to be timely updated according to the transformation of real-time acceleration.
The present invention has the advantage that
Anti- electronic equipment involved according to the present invention accidentally removes detection device, because photosensitive sensors are mounted on electronics production
On circuit board inside product, light inlet is provided on shell, so increasing when electronic product is removed into the light in shell
By force, photosensitive sensors experience luminous intensity and send processing unit for intensity information, and acceleration transducer is mounted on electronics
On product, it is sent to processing unit for detecting the acceleration of electronic product, and by acceleration information, setup unit is for setting
The threshold value of angle between light sensation intensity threshold and twice acceleration, processing unit is according between luminous intensity and two acceleration
Angle judges whether electronic equipment is removed, and alarm unit is alarmed according to the processing result of processing unit, therefore, avoid
Since installation question leads to light leakage to generate wrong report, while solving object and use acceleration transducer to detect during exercise
Acceleration is difficult that the problem of whether object is removed determined, improves the accuracy of device detection.
Detailed description of the invention
Fig. 1 is the easy structure schematic diagram that anti-electronic equipment accidentally removes detection device in the embodiment of the present invention；
Fig. 2 is the process flow diagram of processing unit in the embodiment of the present invention.
Specific embodiment
It is real below in order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention
Applying example combination attached drawing, accidentally dismounting detection device is specifically addressed to anti-electronic equipment of the invention.
As shown in Figure 1, accidentally dismounting detection device 100 includes anti-electronic equipment: photosensitive sensors 30, acceleration transducer
40, setup unit (not shown), storage unit (not shown), processing unit (not shown) and alarm unit
(not shown).
Electronic equipment includes shell 10 and circuit board 20.Circuit board 20 is mounted in shell 10, and circuit board 20 and shell
There are gaps between 10.Light inlet 11 is provided on shell 10.
Photosensitive sensors 30 are mounted on 10 interior circuit board 20 of shell.Photosensitive sensors 30 are connect with processing unit, light sensation
Sensor 30 is used to detect the intensity of light, and the light sensation strength signal that will test is sent to processing unit.In the present embodiment,
The distance of position of the photosensitive sensors 30 on circuit board 20 to light inlet 11 is the shortest distance.It is seen with the position in Fig. 1, light sensation
Sensor 30 is located at the underface of light inlet 11, and when shell 10 is detached from monitored object, photosensitive sensors 30 can be examined in time
The variation for measuring light is avoided because light inlet 11 is not big enough, and light sensation sensing cannot be shone directly by being mounted on other positions light
Device 30 causes photosensitive sensors 30 to detect inaccuracy.
In the present embodiment, light-guiding pillar 50 is provided between light inlet 11 and photosensitive sensors 30.Light-guiding pillar 50 is for making
It obtains photosensitive sensors 30 and obtains the maximum perceptibility that exterior light is shone.It avoids light inlet 11 less than normal and angle of incidence of light passes light sensation
The photosensitive influence of sensor 30.
Acceleration transducer 40 is installed on an electronic device, is connect with processing unit.Acceleration transducer 40 can be installed
It on shell 10, also may be mounted on circuit board 20, as long as can be moved simultaneously with electronic equipment.In the present embodiment,
Acceleration transducer 40 is mounted on inside shell 10.
The threshold value of angle of the setup unit between setting intensity threshold and two acceleration.
Storage unit is used to store acceleration when intensity threshold, the threshold value of angle and stable state.
When electronic equipment is just mounted on object, storage unit stores the acceleration that acceleration transducer 40 is sent, and
Acceleration when as initial stable state.When with object of which movement, acceleration is constantly changing electronic equipment, by obtaining in real time
The acceleration taken obtains the acceleration when stable state of this time.And it needs to be timely updated surely according to the acceleration obtained in real time
Acceleration when state.
The acceleration that processing unit receives the intensity information that photosensitive sensors 30 are sent and acceleration transducer 40 is sent
Information, and received information is handled.Treatment process is as shown in Figure 2.
Step S1, processing unit receives the intensity information that photosensitive sensors 30 are sent and acceleration transducer 40 is sent
Acceleration information.
Step S2, judges whether current light intensity is greater than the intensity threshold of setup unit setting, if it is less, returning
Step S1；If it is greater, then carrying out step S3.
Step S3, judges whether the angle between acceleration when acceleration and stable state at this time is greater than setup unit setting
Angle threshold value, if it is less, return step S1；If it is greater, then entering step S4.
Step S4, processing unit control alarm unit are alarmed.
Wherein, when the acceleration in step 3 when stable state is that real-time luminous intensity is greater than intensity threshold, what storage unit saved
Acceleration when the obtained newest stable state of acceleration before the moment.
When installation, the one side that shell 10 has light inlet 11 is close on the lighttight face of monitored object and is installed.
Above embodiment is preferred case of the invention, the protection scope being not intended to limit the invention.
Claims (4)
1. a kind of anti-electronic equipment accidentally removes detection device, it is mounted on electronic product, the circuit board of the electronic product and outer
There are gaps between shell characterized by comprising
Photosensitive sensors are mounted on the circuit board；
Acceleration transducer is mounted on the electronic product；
Setup unit, for setting intensity threshold, when light intensity signal is greater than intensity threshold brief acceleration direction and stable state
Acceleration direction between angle threshold value；
Storage unit, for storing the acceleration when threshold value and stable state of the intensity threshold, the angle；
Processing unit is connect, for receiving the photosensitive sensors and institute with the photosensitive sensors, the acceleration transducer
It states the signal of acceleration transducer transmission and is handled；And
Alarm unit is connect with the processing unit, issues alarm signal according to the processing result of the processing unit,
Wherein, what the shell was opposite with the photosensitive sensors is provided with light inlet on one side,
The processing unit first sets the light intensity signal that the photosensitive sensors received are sent with the setup unit
Fixed intensity threshold is compared, if light intensity signal is greater than intensity threshold, calculates the acceleration sensing at this time
The angle between acceleration direction when the acceleration direction that device is sent and stable state, if angle is set greater than the setup unit
Angle threshold value, then send result to the alarm unit, the alarm unit issues alarm signal.
2. anti-electronic equipment according to claim 1 accidentally removes detection device, it is characterised in that:
The distance of position of the photosensitive sensors on the circuit board to the light inlet is the shortest distance.
3. anti-electronic equipment according to claim 1 accidentally removes detection device, it is characterised in that:
Light-guiding pillar is provided between the light inlet and the photosensitive sensors.
4. anti-electronic equipment according to claim 1 accidentally removes detection device, it is characterised in that:
The acceleration when stable state is the steady-state value that the real-time acceleration information sent according to acceleration transducer obtains, and
And acceleration when stable state needs to be timely updated according to the transformation of real-time acceleration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710202089.3A CN107024726B (en) | 2017-03-30 | 2017-03-30 | Anti- electronic equipment accidentally removes detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710202089.3A CN107024726B (en) | 2017-03-30 | 2017-03-30 | Anti- electronic equipment accidentally removes detection device |
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| Publication Number | Publication Date |
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| CN107024726A CN107024726A (en) | 2017-08-08 |
| CN107024726B true CN107024726B (en) | 2019-02-12 |
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| CN201710202089.3A Active CN107024726B (en) | 2017-03-30 | 2017-03-30 | Anti- electronic equipment accidentally removes detection device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107707634A (en) * | 2017-09-20 | 2018-02-16 | 上海移为通信技术股份有限公司 | To the illegal dismounting identifying system of product and its method |
| CN108538037A (en) * | 2018-06-07 | 2018-09-14 | 刁建程 | A kind of positioning alarm system for small type mobile devices |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5936523A (en) * | 1998-04-24 | 1999-08-10 | West; Joe F. | Device and method for detecting unwanted disposition of the contents of an enclosure |
| JP4188960B2 (en) * | 2005-09-30 | 2008-12-03 | 三菱電機株式会社 | Sensor blind spot detection device, sensor installation position design support system, sensor blind spot detection method, and sensor installation position design support method |
| CN204547952U (en) * | 2015-02-12 | 2015-08-12 | 深圳市金溢科技股份有限公司 | Board units and the anti-disassembling device with ambient light sensing |
| CN204423568U (en) * | 2015-03-10 | 2015-06-24 | 深圳市易特科信息技术有限公司 | Based on the electronic product tamper pick-up unit of light signal |
| DE102015208771B3 (en) * | 2015-05-12 | 2016-09-01 | Robert Bosch Gmbh | Device and method for theft detection |
| CN205263886U (en) * | 2015-12-29 | 2016-05-25 | 北京万集科技股份有限公司 | Anti -disassembly detection circuitry and vehicle -mounted electronic label |
| CN205582163U (en) * | 2016-03-25 | 2016-09-14 | 东莞市中控电子技术有限公司 | Prevent unpacing apart pass based on acceleration sensor |
| CN206060772U (en) * | 2016-08-25 | 2017-03-29 | 大连楼兰科技股份有限公司 | Band prevents the vehicle electronics communication apparatus of illegal disassembling function |
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