CN107224683A - Broken glass device and its control method - Google Patents
Broken glass device and its control method Download PDFInfo
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- CN107224683A CN107224683A CN201710479157.0A CN201710479157A CN107224683A CN 107224683 A CN107224683 A CN 107224683A CN 201710479157 A CN201710479157 A CN 201710479157A CN 107224683 A CN107224683 A CN 107224683A
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- switch
- state
- broken glass
- control unit
- glass device
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B3/00—Devices or single parts for facilitating escape from buildings or the like, e.g. protection shields, protection screens; Portable devices for preventing smoke penetrating into distinct parts of buildings
- A62B3/005—Rescue tools with forcing action
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
The invention discloses a kind of broken glass device and its control method.The broken glass device includes：First switch, second switch, broken glass device, timer and control unit.Described control unit is electrically connected in the first switch, the second switch, broken the glass device and the timer；Described control unit is configured as detecting the state of the first switch and the second switch, if the state of at least one detected in the first switch and the second switch changes, then start the timer and detect the state of the first switch and the second switch to be confirmed whether to meet brokenly glass condition, if the state that the first switch and the second switch are detected before the timer expiration meets brokenly glass condition, start the broken glass device.Embodiments of the invention can avoid causing brokenly glass due to the state that accidental change is switched, to cause brokenly glass device to have more preferable security.
Description
Technical field
Embodiments of the invention are related to vehicle safety field, more particularly to a kind of broken glass device for the vehicles
And its control method.
Background technology
With the development of transportation, people are to the attention degree of traffic safety also more and more higher.The peace of the vehicles
Full property has become in design process one and important considers direction.The large-scale friendship such as kart, bus, train, steamer
Logical instrument, once many life will be related to by accident occur.By taking automobile as an example, once there is accident in in-car, how from
Vehicle interior fast-escape under relative closure state is particularly important.Measure not in time, or lacks necessary save oneself and arranged
Apply, it is possible to threaten the safety of life and property of driver and crew.Therefore, in order to improve the security performance of vehicle, many systems
Make commercial city and put into substantial amounts of fund on the safe corollary equipment of automobile.Driver and crew and manufacturer can consider mostly at present
Glass wall or windowpane are crushed under the state of emergency, to form occasional passage for people's evacuation, escape, so can effectively be reduced
Casualties.
At present, widely used broken glass device is in the majority with broken glass hammer manually, but the use needs of broken glass hammer are certain manually
Skill, in the case of improper use, in the of short duration time can not reliably shattered glass, for example may due to wound or space problem
Glass hammer can not be used to carry out broken glass brokenly.Therefore, occur in that new electromagnetic type or blasting type break glass device again in recent years.However, this
Plant electric-controlled type and break glass device all using the broken glass switch of " one-touch ", as long as simple closure switch, it becomes possible to broken glass.But
In the environment of actual motion, because maloperation, foreign object extruding or the vibrations of such as vehicle body may all cause the closure of switch,
Cause unexpected broken glass, cause unnecessary economic loss.
The content of the invention
For problems of the prior art, The embodiment provides a kind of broken glass device and its controlling party
Method, can avoid causing brokenly glass due to the state that accidental change is switched, to cause brokenly glass device to have more preferable security.
There is provided a kind of broken glass device according to the first aspect of the invention.The broken glass device includes：First switch,
Two switches, broken glass device, timer and control unit.The first switch and the second switch are electrically connected described
Control unit；The broken glass device is electrically connected to described control unit；The timer is electrically connected to described control unit；Institute
State control unit and be configured as detecting the state of the first switch and the second switch, if detecting the first switch
Changed with the state of at least one in the second switch, then start the timer and detect the first switch and
The state of the second switch is to be confirmed whether to meet brokenly glass condition, if detecting described before the timer expiration
The state of one switch and the second switch meets brokenly glass condition, then starts the broken glass device.
In an embodiment of the present invention, if the state of one in the first switch and the second switch changes
Become, then another the state that the broken glass condition is included in the first switch and the second switch changes；It is described
If control unit is configured as detecting in the first switch and the second switch before the timer expiration
Another state changes, then starts the broken glass device.
In an embodiment of the present invention, if the state of both the first switch and the second switch all changes
Become, then the state of at least one that the broken glass condition is included in the first switch and the second switch changes again
Become；If described control unit is configured as detecting the first switch and described second before the timer expiration and opened
Generating state changes at least one of the Central Shanxi Plain again, then starts the broken glass device.
In an embodiment of the present invention, the broken glass device also includes the attention device for being electrically connected to described control unit,
Wherein, if described control unit is configured as detecting the shape of at least one in the first switch and the second switch
State changes, then controls the attention device to alert.
In an embodiment of the present invention, described control unit is configured as detecting the first switch and institute with predetermined period
State the state of second switch.
In an embodiment of the present invention, the predetermined period is less than the time of the timer.
It is used for any one described in the first aspect of the present invention there is provided a kind of according to the second aspect of the invention
The control method of broken glass device.The control method includes：Detect first switch and the state of second switch；If detecting institute
The state of at least one stated in first switch and the second switch changes, then starts timer；Detect described first
The state with the second switch is switched to be confirmed whether to meet brokenly glass condition；If detected before the timer expiration
The first switch and the state of the second switch meet brokenly glass condition, then start broken glass device.
In an embodiment of the present invention, if the state of one in the first switch and the second switch changes
Become, then another the state that the broken glass condition is included in the first switch and the second switch changes；If
Another the state detected before the timer expiration in the first switch and the second switch changes,
Then start the broken glass device.
In an embodiment of the present invention, if the state of both the first switch and the second switch all changes
Become, then the state of at least one that the broken glass condition is included in the first switch and the second switch changes again
Become；If at least one detected before the timer expiration in the first switch and the second switch is sent out again
Raw state change, then start the broken glass device.
In an embodiment of the present invention, the control method also includes：If detecting the first switch and described
At least one state in two switches changes, then controls attention device alarm.
In an embodiment of the present invention, the first switch and the state of the second switch are detected with predetermined period.
In an embodiment of the present invention, the predetermined period is less than the time of the timer.
Embodiments in accordance with the present invention, broken glass device can be crushed by first switch and the double verification of second switch
Glass.It can thus be avoided causing brokenly glass due to the state that accidental change is switched, to cause brokenly glass device that there is more preferable peace
Quan Xing
The further aspect and scope of adaptability become obvious from description provided herein.It should be appreciated that of the invention
Various aspects can individually or with it is one or more other aspect combine implementation.It is also understood that description herein and
The purpose that specific embodiment is intended to only illustrate is not intended to limit the scope of the invention.
Brief description of the drawings
Accompanying drawing described herein is used for the purpose of the explanation only to selected embodiment, not all possible reality
Mode is applied, and is not intended to limitation the scope of the present invention, wherein：
Fig. 1 shows the schematic block diagram for breaking glass device according to an embodiment of the invention；
Fig. 2 shows the schematic block diagram of broken glass device according to another embodiment of the invention；
Fig. 3 is shown is used for the flow chart for breaking the control method of glass device according to an embodiment of the invention；
Fig. 4 shows the flow chart for being used to break the control method of glass device according to another embodiment of the invention.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
Accompanying drawing, the technical scheme to the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is only this
A part of embodiment of invention, rather than whole embodiments.Based on described embodiments of the invention, the common skill in this area
The every other embodiment that art personnel are obtained on the premise of without creative work, belongs to the scope of protection of the invention.
Describe embodiments of the invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that not conflicting
In the case of, the feature in embodiment in the present invention can be mutually combined.
The embodiment provides a kind of broken glass device and its control method, the broken glass device and its control method can
Applied to the vehicles such as automobile, train, steamer, illustrated below by taking automobile as an example.
Fig. 1 is the schematic block diagram of glass device 100 broken according to an embodiment of the invention.As shown in figure 1, broken glass device
100 include first switch 102, second switch 104, broken glass device 106, timer 108 and control unit 110.Wherein, first open
Close 102, second switch 104, broken glass device 106, timer 108 and control unit 110 is electrically connected.It should be appreciated that at this
Wen Zhong, term " electric connection " can be CAN, LAN or electrical wiring connection.
First switch 102 and second switch 104 can be button switches (for example, self-locking or self-replaced type button are opened
Close), the different types of switch such as rotary switch.Switch could generally have closure state and off-state, and the state switched
It can be changed by triggering.For example, the state of switch can be made to change into closure by disconnecting by triggering, it can also be made open by triggering
The state of pass changes into disconnection by closing.For Self-locking button switch, for example, Self-locking button switch can be made by triggering
State is stayed closed all the time by disconnecting changing into.For self-replaced type button switch, for example, can by triggering make self-replaced type by
The state of button switch changes into closure by disconnecting, and disconnection is remained then followed by being changed into by closure.The He of first switch 102
Second switch 104 can be arranged at the position for facilitating driver to operate.In addition, between first switch 102 and second switch 104
Appropriately distance can be kept, to prevent two switches by maloperation or extruding simultaneously.
Broken glass device 106 can be the broken glass device started by initiation current.Initiation current can be carried by control unit 110
For.Broken glass device 106 can include the multiple broken glass devices being separately mounted on different glass and/or skylight.These broken glass devices can
To be connected to control unit 110 by way of being connected in parallel, to cause brokenly glass device 106 can be crushed after being activated many simultaneously
Individual glass and/or skylight.
Timer 108 can be set in advance the time, and start timing after the startup of controlled unit 110.Work as timer
108 when reaching time (i.e. the timer expiration) of setting, then stop timing.Timer 108 can be integrated in control unit 110
In, to reduce brokenly the volume of glass device 100.Following embodiment is said exemplified by being 8 seconds by the time that timer 108 is set
It is bright.
Control unit 110 can be the electronic control unit (ECU, Electronic Control Unit) of automobile.It is
The controller being made up of integrated circuit, the function such as analysis, processing, transmission for realizing data.Control unit 110 can by with
Detection first switch 102 and the state of second switch 104 are set to, for example, can be opened by having detected whether that electric current flows through first
Close 102 and second switch 104 detect whether they are triggered.In addition, control unit can be configured as examining with predetermined period
Survey first switch and the state of second switch.Following embodiment is configured as the default week with 500 milliseconds with control unit 110
Illustrated exemplified by phase detection first switch 102 and the state of second switch 104.
It should be noted that the cycle that control unit is predetermined can be arbitrary time value, as long as control unit is pre-
If cycle be less than time for being set of timer.
The operation principle of broken glass device 100 is as follows.At a time, in first switch 102 and second switch 104 at least
One is triggered.Then, control unit 110 starts timer 108, and continues to detect first switch 102 and second switch 104
Whether state, meet brokenly glass condition with the state for confirming first switch 102 and second switch 104.If expired in timer 108
Before, first switch 102 and the state of second switch 104 meet brokenly glass condition, then control unit 110 can be by broken glass device
106 provide initiation currents to start brokenly glass device 106.Therefore, glass can be crushed by breaking the confirmation of glass condition by breaking glass device 100
Glass.Illustrate which first switch 102 and the state of second switch 104 meet broken in the case of below by specific embodiment
Glass condition.
According to one example embodiment, at a time, first switch 102 is triggered.Now, control unit
110 one detected in first switch 102 and second switch 104 are triggered, i.e., first switch 102 is triggered, and second opens
104 are closed not to be triggered.Then, control unit 110 starts timer 108.Before timer 108 expires, such as at the 7th second the
Two switches 104 are triggered.Now, control unit 110 detects second switch 104 and is triggered, i.e., first switch 102 and second is opened
The state for closing 106 meets brokenly glass condition, so control unit 110 can be started by providing initiation current to broken glass device 106
Broken glass device 106.Therefore, glass device 100 is broken by first switch 102 and the double verification of second switch 104, and final realize crushes
Glass.
According to one example embodiment, at a time, first switch 102 is triggered due to maloperation.
Now, detect in first switch 102 and second switch 104 one of control unit 110 is triggered, i.e. the quilt of first switch 102
Triggering.Then, control unit 110 starts timer 108.Because before timer 108 expires, control unit 110 is not detected
It is triggered to second switch 104, i.e. first switch 102 and the state of second switch 106 does not meet brokenly glass condition, so control is single
Member 110 does not start brokenly glass device 106.Therefore, glass device 100 is broken by first switch 102 and the double verification of second switch 104,
First switch 102 can be avoided because maloperation is triggered and causes brokenly glass.
As described above as can be seen that broken glass device 100 can pass through first switch 102 and pair of second switch 104
Re-examination card carrys out broken glass.If one in two switches is triggered due to maloperation or foreign object extruding, now will not
Start broken glass device 106.Only before timer 108 expires, another switch is triggered, and can just start brokenly glass device 106.Cause
This, can be avoided causing brokenly glass due to unexpected trigger switch, to cause brokenly glass device 100 to have more preferable security.
Fig. 2 is the schematic block diagram of broken glass device 200 according to another embodiment of the invention.As shown in Fig. 2 broken glass
Device 200 is except the first switch 102 including Fig. 1, second switch 104, broken glass device 106, timer 108 and control unit
Outside 110, the also additional attention device 112 for including being electrically connected with control unit 110.
Attention device 112 can include one or more of buzzer, phonetic alarm or indicator lamp.Attention device 112 exists
Buzzing, audio alert or indicator lamp flicker are sent under the control of control unit 110, to point out driver will to break glass.
The broken glass principle of broken glass device 200 is identical with broken glass device 100, and description is not repeated herein.Below by tool
The embodiment of body illustrates which the state of first switch 102 and second switch 104 meet broken glass condition in the case of.
According to one example embodiment, at a time, first switch 102 and second switch 104 are by simultaneously
Triggering.Now, control unit 110 detects first switch 102 and both second switch 104 is triggered.Then, control unit
110 send alarm signal to attention device 112, to control attention device 112 to alert, so as to point out driver will to break glass.Together
When, control unit 110 starts timer 108.Timer 108 expire before, such as at the 7th second, first switch 102 or
Both second switch 104 or first switch 102 and second switch 104 are triggered again.Now, control unit 110 is detected
At least one in first switch 102 and second switch 104 is again triggered, i.e. the shape of first switch 102 and second switch 106
State meets brokenly glass condition, so control unit 110 can start brokenly glass device 106 by providing initiation current to broken glass device 106.
Therefore, glass device 200 is broken by first switch 102 and the double verification of second switch 104, finally realizes broken glass.
According to one example embodiment, at a time, first switch 102 and second switch 104 are due to by mistake
Operate and be concurrently triggered.Now, control unit 110 detects first switch 102 and both second switch 104 is triggered.
Then, control unit 110 sends alarm signal to attention device 112, to control attention device 112 to alert, so as to point out driver can
It can will break glass.Meanwhile, control unit 110 starts timer 108.Driver is received after the alarm of attention device 112, and first opens
One or both of 102 and second switch 104 are closed not to be triggered.Since before timer 108 expires, control unit
110 at least one being not detected by first switch 102 and second switch 104 are again triggered, i.e. first switch 102 and second
The state of switch 106 does not meet brokenly glass condition, so control unit 110 does not start brokenly glass device 106.Therefore, glass device 200 is broken to lead to
Cross the double verification of first switch 102 and second switch 104, can avoid first switch 102 and second switch 104 both due to
It is misused and causes brokenly glass.
As described above as can be seen that broken glass device 200 is tested by first switch 102 and the dual of second switch 104
Card carrys out broken glass.If both first switch 102 and second switch 104 are triggered due to maloperation or foreign object extruding,
Glass device 106 will not now be started brokenly.Only before timer 108 expires, in first switch 102 and second switch 104 extremely
Few one is triggered again, can just start brokenly glass device 106.It can thus be avoided glass is caused brokenly due to unexpected trigger switch, with
So that broken glass device 200 has more preferable security.
It should be noted that control unit 110 is not only when both first switch 102 and second switch 104 are triggered,
Alarm signal is sent to attention device 112.Control unit 110 can also be in first switch 102 and second switch 104 a quilt
During triggering, alarm signal is sent to attention device 112, to point out driver will to break glass.
Fig. 3, Fig. 4 are diagrammatically illustrated is used for the controlling party of broken glass device described above according to an embodiment of the invention
The flow chart of method.Control method can be performed by breaking the control unit in glass device according to an embodiment of the invention.It is detailed below
Thin description Fig. 3 and Fig. 4 flow chart.
It as it was previously stated, the state of switch may include closed and disconnected, and can be changed by triggering, be not repeated to retouch herein
State.
As shown in figure 3, in step 302, control unit can detect first switch and the state of second switch.In step 304,
Determine whether to detect one in first switch and second switch to be triggered.If detecting first switch quilt in step 304
Triggering, and second switch is not triggered, that is, detecting one in first switch and second switch is triggered, then in step 306,
Start timer and start timing.In step 308, continue to detect the state of another switch.In step 310, it is determined whether fixed
When device expire before detect second switch and be triggered.If detecting second switch in step 310 to be triggered, that is to say, that inspection
Another measured in first switch and second switch is triggered, i.e. first switch 102 and the state of second switch 106 meets brokenly
Glass condition, then in step 312, start broken glass device.On the other hand, it is triggered if being not detected by second switch in step 310,
Step 302 is returned to, continues to detect first switch and the state of second switch.In addition, in step 306, control unit starts fixed
When device while, alarm signal can also be sent to attention device, to control attention device to alert, so that point out may will break glass.
The control method that the present embodiment is provided is used for the broken glass device 100 shown in Fig. 1 that previous embodiment is described, and it is tied
Structure, function and/or advantage are identical with the structure, function and/or advantage of the broken glass device 100 in previous embodiment, herein no longer
It is described in detail.
As shown in figure 4, the flow chart of control method except the step 302 including Fig. 3,304,306,308,310 and 312 it
Outside, in addition to step 314,316,318 and 320, wherein, step 304 can parallel be performed with step 314.Fig. 4 step 302,
304th, 306,308,310 and 312 is identical with Fig. 3 these steps, and description is not repeated herein.
If detecting first switch and second switch in step 314 to be both triggered, timing is started in step 316
Device, and control attention device to alert, point out that glass may will be broken.On the other hand, if step 314 be not detected by first switch and
Both second switch is triggered, then returns to step 302, continues to detect first switch and the state of second switch.In step
318, continue to detect first switch and the state of second switch.In step 320, it is determined whether before the timer expiry, detection
Both it is triggered to first switch or second switch or first switch and second switch.If detected in step 320
Both it is triggered to first switch or second switch or first switch and second switch, i.e. first switch 102 and
The state of two switches 106 meets brokenly glass condition, then starts broken glass device in step 312.On the other hand, if do not examined in step 320
Measure first switch or second switch or first switch and both second switch be triggered, then return to step 302,
Continue to detect first switch and the state of second switch.
The control method that the present embodiment is provided is used for the broken glass device 200 shown in Fig. 2 that previous embodiment is described, and it is tied
Structure, function and/or advantage are identical with the structure, function and/or advantage of the broken glass device 200 in previous embodiment, herein no longer
It is described in detail.
The flow chart described in the disclosure is only an example.In the case where not departing from disclosure spirit, Ke Yicun
In the flow chart or many modifications the step of described in it.For example, the step can be carried out in a different order, Huo Zheke
To add, delete or amendment step.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (12)
1. a kind of broken glass device, including：First switch, second switch, broken glass device, timer and control unit, wherein,
Described control unit is electrically connected in the first switch and the second switch；
The broken glass device is electrically connected to described control unit；
The timer is electrically connected to described control unit；
Described control unit is configured as detecting the state of the first switch and the second switch, if detecting described
The state of at least one in one switch and the second switch changes, then starts the timer and detect described first
The state of switch and the second switch is to be confirmed whether to meet brokenly glass condition, if detected before the timer expiration
The first switch and the state of the second switch meet brokenly glass condition, then start the broken glass device.
2. broken glass device according to claim 1, wherein, if one in the first switch and the second switch
State change, then the broken glass condition include the first switch and the second switch in another state hair
It is raw to change；If described control unit is configured as detecting the first switch and described before the timer expiration
Another state in two switches changes, then starts the broken glass device.
3. broken glass device according to claim 1, wherein, if the shape of both the first switch and the second switch
State all changes, then the broken glass condition include the first switch and the second switch in the state of at least one again
It is secondary to change；If described control unit is configured as before the timer expiration detecting the first switch and institute
At least one generating state change again in second switch is stated, then starts the broken glass device.
4. broken glass device according to claim 1, in addition to：The attention device of described control unit is electrically connected to, wherein,
If described control unit is configured as detecting the state of at least one hair in the first switch and the second switch
It is raw to change, then control the attention device to alert.
5. the broken glass device according to claim 1-4, wherein, described control unit is configured as detecting institute with predetermined period
State the state of first switch and the second switch.
6. broken glass device according to claim 5, wherein, the predetermined period is less than the time of the timer.
7. a kind of control method of the broken glass device described in any one for preceding claims, including：
Detect first switch and the state of second switch；
If the state of at least one detected in the first switch and the second switch changes, start timing
Device；
The state of the first switch and the second switch is detected to be confirmed whether to meet brokenly glass condition；
If the state that the first switch and the second switch are detected before the timer expiration meets brokenly glass bar
Part, then start broken glass device.
8. control method according to claim 7, wherein, if one in the first switch and the second switch
State change, then the broken glass condition include the first switch and the second switch in another state hair
It is raw to change；If detecting another the shape in the first switch and the second switch before the timer expiration
State changes, then starts the broken glass device.
9. control method according to claim 7, wherein, if the shape of both the first switch and the second switch
State all changes, then the broken glass condition include the first switch and the second switch in the state of at least one again
It is secondary to change；If detecting at least one in the first switch and the second switch before the timer expiration
Individual generating state again changes, then starts the broken glass device.
10. control method according to claim 7, in addition to：If detecting the first switch and described second to open
At least one state in the Central Shanxi Plain changes, then controls attention device alarm.
11. the control method according to claim 7-10, wherein, the first switch and described the are detected with predetermined period
The state of two switches.
12. control method according to claim 11, wherein, the predetermined period is less than the time of the timer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710479157.0A CN107224683B (en) | 2017-06-22 | 2017-06-22 | Glass breaking device and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710479157.0A CN107224683B (en) | 2017-06-22 | 2017-06-22 | Glass breaking device and control method thereof |
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| Publication Number | Publication Date |
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| CN107224683A true CN107224683A (en) | 2017-10-03 |
| CN107224683B CN107224683B (en) | 2020-06-12 |
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| CN201710479157.0A Active CN107224683B (en) | 2017-06-22 | 2017-06-22 | Glass breaking device and control method thereof |
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| CN105787325A (en) * | 2016-02-19 | 2016-07-20 | 宇龙计算机通信科技(深圳)有限公司 | Start and shutdown control method and device of terminal and terminal |
| CN205498867U (en) * | 2016-02-29 | 2016-08-24 | 株洲南冠安全科技有限公司 | Automatic broken glass escape device |
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| JP2007319027A (en) * | 2006-05-30 | 2007-12-13 | Shigaken Shoko Kankyo Kk | Method for producing glass broken piece-utilizing greening base material, and glass broken piece-utilizing greening base material |
| US20140267027A1 (en) * | 2008-11-17 | 2014-09-18 | Roger Li-Chung Wu | Vision Protection Method and System Thereof |
| CN102266647A (en) * | 2011-06-30 | 2011-12-07 | 周强 | Self-destruction system of fire hazard resistant toughened glass |
| CN103253111A (en) * | 2013-05-24 | 2013-08-21 | 开平市中铝实业有限公司 | Car door with crushing device for car window glass |
| CN105083191A (en) * | 2015-09-16 | 2015-11-25 | 大陆汽车电子(长春)有限公司 | Automatic window detonating method and system and vehicle with system |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107224683B (en) | 2020-06-12 |
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