CN209417942U - The anti-alarming device that knocks into the back of one kind - Google Patents
The anti-alarming device that knocks into the back of one kind Download PDFInfo
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- CN209417942U CN209417942U CN201920265672.3U CN201920265672U CN209417942U CN 209417942 U CN209417942 U CN 209417942U CN 201920265672 U CN201920265672 U CN 201920265672U CN 209417942 U CN209417942 U CN 209417942U
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- 230000004888 barrier function Effects 0.000 claims description 13
- 230000000007 visual effect Effects 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 6
- 206010039203 Road traffic accident Diseases 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000013100 final test Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
Abstract
The utility model relates to the anti-alarming devices that knocks into the back of one kind, it include: the first alarming device and the second alarming device, first alarming device includes: the first detector, the first controller, the first alarm and the first external button, and the second alarming device includes: the second detector, second controller, the second alarm and the second external button；First alarming device is connect with the second alarming device, first detector determines the first time for receiving the first reflection signal, second detector determines the second time for receiving the second reflection signal, first controller issues control signal to second controller when meeting the condition according to preset alarm condition is determined with the second time at the first time；Second controller controls the second alarm according to control signal and issues alarm signal, to warn target vehicle front vehicle；Manual alarm is carried out by the external button of the first or second.By above technical scheme, when realizing road ahead situation occurred, the purpose of long-distance alarm prompt can be carried out in time.
Description
Technical field
The utility model relates to the anti-warning system technical fields that knocks into the back, and in particular to the anti-alarming device that knocks into the back of one kind.
Background technique
With the development of the society, people in trip, often selection can walk highway, drive in road to save
Time.However during vehicle travels on a highway, speed is very fast, and a lot of major traffic accidents can all occur every year,
And most is all due to rear crash event caused by cannot braking in time.
In real life, when weather condition causes low visibility, front road conditions cannot be grasped in advance, or work as front
When having accident vehicle, front vehicle cannot be hidden in time since speed is very fast, easily cause traffic accident.In the prior art,
Such as at the greasy weather, by the way that flash lamp is arranged in roadside, so that flash lamp constantly flashes, prompt can only be played and slowed down slowly
Capable effect effectively cannot be prompted and be alarmed at a distance, when an accident occurs, can not timely be mentioned to front vehicle
Before give a warning, the time for making the driver of front vehicle insufficient takes counter-measure.
Utility model content
In view of this, a kind of anti-alarming device that knocks into the back is provided, when situation occurred, not can be carried out long distance in front of solving road
The problem of from warning note.
The utility model adopts the following technical solution: the anti-alarming device that knocks into the back of one kind, comprising: the first alarming device and second
Alarming device, wherein the first alarming device include: the first detector, the first controller, the first alarm and first it is external by
Button, the second alarming device include: the second detector, second controller, the second alarm and the second external button.
First alarming device is connect with the second alarming device, and the first detector receives the first reflection signal for determination
At the first time, the second detector receives the second time of the second reflection signal for determining, wherein the first reflection signal according to
First transmitting signal of the first detector transmitting carries out reflection acquisition after being emitted to target vehicle or barrier；Second reflection signal
Reflection acquisition is carried out after being emitted to target vehicle or barrier according to the second transmitting signal of the second detector transmitting.
First controller is used to determine preset alarm condition according to first time and the second time, and is meeting preset alarm
Control signal is issued to second controller when condition；Second controller, which is used to control the second alarm according to control signal, issues report
Alert signal, to warn the vehicle of target vehicle or barrier rear；First external button and the second external button are respectively with first
Controller and second controller connection, user can be reported manually by the first external button of operation or the second external button
It is alert.
Further, the first controller is also used to: issuing control letter to the first alarm when meeting preset alarm condition
Number, to indicate that the first alarm carries out warning note.
Further, preset alarm condition includes: at the first time and the difference of the second time is greater than or equal to preset time threshold
Value.
Further, the first detector includes ultrasonic detector, and the second detector includes ultrasonic detector.
Further, the first alarm includes visual alarm, and the second alarm includes visual alarm.
Further, the first alarming device is arranged on the protective plate of road, and the anti-of road is arranged in the second alarming device
On backplate.
Further, the first alarming device is at least one, and the second alarming device is at least one.
It further, further include charger.
Further, charger is powered the anti-alarming device that knocks into the back using low-voltage mode.
Further, the spacing of the first alarm and the second alarm is set as three meters.
The utility model uses above technical scheme, by the way that the first alarming device to be connect with the second alarming device, first
Detector receives the first time of the first reflection signal for determining, the second detector receives the second reflection letter for determining
Number the second time, wherein first reflection signal according to the first detector emit first emit signal is emitted to target vehicle
Or reflection acquisition is carried out after barrier；Second reflection signal is emitted to target according to the second transmitting signal that the second detector emits
Reflection acquisition is carried out after vehicle or barrier, can determine that vehicle passes through the time of each detector by the way that detector is arranged, and
Speed is determined according to the time that two neighboring detector measures；By the way that the first controller is arranged, the first controller can be used in root
Preset alarm condition is determined according to first time and the second time, and is issued and controlled to second controller when meeting preset alarm condition
Signal processed can control the working condition of the first alarm and second controller；By the way that second controller is arranged, so that the second control
Device processed, which is used to control the second alarm according to control signal, issues alarm signal, to warn the vehicle of target vehicle or barrier rear
, achieve the purpose that prompt at a distance；By setting the first external button and the second external button, and the first external button and the
Two external buttons are connect with the first controller and second controller respectively, when alarming device is not alarmed automatically, user
Manual alarm can be carried out by the first external button of operation or the second external button.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of anti-alarming device that knocks into the back provided by the embodiment of the utility model；
Fig. 2 is a kind of structural schematic diagram for the control signal patrilineal line of descent with only one son in each generation list being applicable in the utility model embodiment；
Fig. 3 is that a kind of control signal being applicable in the utility model embodiment passs on a skill from a master to a single disciple more structural schematic diagrams.
Specific embodiment
To keep the purpose of this utility model, technical solution and advantage clearer, below by the technology to the utility model
Scheme is described in detail.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work
Obtained all other embodiment is put, the range that the utility model is protected is belonged to.
Embodiment
Fig. 1 is the anti-alarming device that knocks into the back of one kind that the utility model embodiment one provides, comprising: 11 He of the first alarming device
Second alarming device 12, wherein the first alarming device 11 includes: the first detector 110, the first controller 111, the first alarm
112 and the first external button 113, the second alarming device 12 includes: that the second detector 120, second controller 121, second are alarmed
Device 122 and the second external button 123.
First alarming device 11 is connect with the second alarming device 12, and the first detector 110 receives first instead for determining
It penetrates the first time of signal, the second detector 120 receives the second time of the second reflection signal for determining, wherein first
Reflection signal is emitted to after target vehicle or barrier reflect and obtain according to the first transmitting signal that the first detector 110 emits
It takes；Second reflection signal is emitted to target vehicle according to the second transmitting signal that the second detector 120 emits or barrier is laggard
Row reflection obtains.
First controller 111 is used to determine preset alarm condition according to first time and the second time, and presets meeting
Control signal is issued to second controller 121 when alert if；Second controller 120 is used for according to control signal the second report of control
Alert device 122 issues alarm signal, to warn the vehicle of target vehicle or barrier rear；Outside first external button 113 and second
It sets button 123 to connect with the first controller 111 and second controller 121 respectively, user can be by operating the first external button
113 or second external button 123 carry out manual alarm.
Firstly, a kind of anti-alarming device that knocks into the back provided in this embodiment, when burst accident occurs on highway, this is anti-
The alarming device that knocks into the back can timely and effectively carry out prompting front vehicle at a distance.In the present embodiment, by taking target vehicle as an example
Son is illustrated, specifically, be arranged the first alarming device 11 and second alarming device 12 in the same side of road, and by first
Alarming device 11 and the connection of the second alarming device 12.In actual application, when target vehicle passes through the second alarming device 12
When, the second transmitting signal of the second detector 120 transmitting is reflected by target vehicle, and the signal reflected at this time is the second reflection letter
Number, the second detector 120 receives the second reflection signal, and determines the time for receiving the second reflection signal at this time, the time
It may be considered for the second time, then the second time was the time value that target vehicle passes through the first detector 110；Target vehicle continues
Moving forward can be by the first alarming device 11, similarly, and the first detector 110 can receive the first reflection of target vehicle transmitting
Signal, and can determine that target vehicle passes through the first time of the first detector 110.Target vehicle travels on a highway
When, every to pass through a detector, detector can all obtain a time value, according to the time value of two neighboring detector and adjacent
The distance between two detectors can determine the speed of target vehicle.
When target vehicle successively passes through the second detector 120 and the first detector 110, the first controller 111 is according to
One time and the second time determine preset alarm condition, which is used to judge the speed of target vehicle.Due to height
The fast highway of travel speed on to(for) vehicle has minimum standard, therefore, when the speed of target vehicle is lower, the first controller
111 according to preset alarm condition is met with the judgement of the second time at the first time, then the first controller 111 generates control signal, and
The control signal is sent to second controller 121, second controller 121 controls the second alarm 122 according to the control signal
It alarms.
It is reported when the control signal that second controller 121 is sent according to the first controller 111 controls the second alarm 122
When alert, at this point, the function of second controller 121 is equivalent to the function of the first controller 111, a control signal can be also generated,
And the control signal of generation is sent to next controller by second controller 121, at this time the function of next controller
It is equivalent to the function of second controller 121, controlling the alarm being attached thereto will alarm, and so on, realization can
Automatically carry out alarming and prompting the purpose of front vehicle at a distance.
In addition to this, each controller connects an external button, for example, the first external button 113 and the first control
Device 111 connects, and the second external button 123 connect with second controller 121, when generation location of accident alarm not automatically into
When row alarm, driver can carry out manual alarm by operating the external button of the position, and then control the alarm at rear
Carry out warning note.Wherein, in order to avoid manual false alarm, when the first external button 123 of external button 113 or the second is pressed
After lower, if the first detector 110 or the second detector 120 do not detect signal in 10 minutes, the alarm alarmed
Meeting automatic closing and alarm prompt, alarms without cancelling manually；Meanwhile after the barrier for road of holding sway is removed or target vehicle is extensive
Multiple normally travel state, then the alarm meeting automatic closing and alarm prompt alarmed, and alarm without eliminating manually.According to height
For the requirement of speed on fast highway, in the present embodiment, which can prompt target vehicle rear 1000
The distance of rice, so that the driver of front vehicle has the sufficient time to take appropriate measures, such as: it is avoided, slow down row
It sails or stops in time, reduce traffic accident rate.
The utility model uses above technical scheme, by the way that the first alarming device 11 is connect with the second alarming device 12,
First detector 110 receives the first time of the first reflection signal for determining, the second detector 120 is received for determination
Second time of the second reflection signal, wherein the first transmitting signal hair that the first reflection signal emits according to the first detector 110
Reflection acquisition is carried out after being mapped to target vehicle；The second transmitting signal hair that second reflection signal emits according to the second detector 120
Reflection acquisition is carried out after being mapped to target vehicle, can determine that vehicle passes through the time of each detector by the way that detector is arranged, and
Speed is determined according to the time that two neighboring detector measures；By the way that the first controller 111 is arranged, the first controller 111 can
For determining preset alarm condition according to first time and the second time, and when meeting preset alarm condition to second controller
121 issue control signal, can control the working condition of the first alarm 112 and second controller 121；Pass through the second control of setting
Device 121 processed, so that second controller 121, which is used to control the second alarm 122 according to control signal, issues alarm signal, with warning
The vehicle at target vehicle rear achievees the purpose that prompt at a distance；Pass through the first external button 113 of setting and the second external button
123, and the first external button 113 and the second external button 123 are connect with the first controller 111 and second controller 121 respectively,
When alarming device is not alarmed automatically, user can be by operating the first external button 123 of external button 113 or the second
Carry out manual alarm.
Further, the first controller 111 is also used to: being issued when meeting preset alarm condition to the first alarm 112
Signal is controlled, to indicate that the first alarm 112 carries out warning note.
Specifically, in the present embodiment, when target vehicle successively passes through the second detector 120 and the first detector 110,
First controller 111 according at the first time and the second time judge whether to meet preset alarm condition, when meeting first control
Device 111 generates control signal, and the first controller 111 sends control signals to second controller 121, so that second controller
121, which control the second alarm 122 according to control signal, alarms.Since the first controller 111 is also connected with the first alarm
112, therefore when the first controller 111 generates control signal, the first controller 111 can also be according to control signal control first
Alarm 112 carries out warning note, and 112 distance objective vehicle of the first alarm is nearest, can timely and effectively prompt target carriage
Driver take corresponding measure.For example, when the speed of target vehicle is lower, the default report of the anti-alarming device that knocks into the back of triggering
Alert condition, the first alarm 112 carry out warning note, and the driver of target vehicle can improve speed in time at this time, avoid with
Front vehicle collides.
Optionally, preset alarm condition includes: at the first time and the difference of the second time is greater than or equal to preset time threshold.
Specifically, the first controller 111 determines preset alarm condition according to first time and the second time, wherein first
Time is determined that the second time was believed by the second detector 120 according to the second reflection by the first detector 110 according to the first reflection signal
Number determination, and the first detector 110 is adjacent with the second detector 120, the speed of target vehicle determine at the first time and second
The speed of the time difference of time, target vehicle is faster, and the time difference is smaller, and speed is slower, and the time difference is bigger.Due to
Traffic law has minimum standard for the vehicle travelled on a highway, therefore, when can preset one according to minimum speed
Between threshold value, such as preset time threshold can be 0.5s, when the time difference of first time and the second time are greater than or equal to
It when 0.5s, indicates that the speed of target vehicle is slower, lower than the speed of minimum standard, is easy to collide with front vehicle, then it is full
Sufficient preset alarm condition, the first alarm 112 and the second alarm 122 carry out warning note simultaneously.
Optionally, the first detector 110 includes ultrasonic detector, and the second detector 120 includes ultrasonic detector.Tool
Body, detector can be ultrasonic detector, it is also possible to laser detector, and in the present embodiment, detector application
Scene is on a highway, to be easy to generate interference to driver according to laser detector, cause traffic accident, therefore, this
The principle of reflection of ultrasonic wave is utilized using ultrasonic detector in embodiment, and will not impact to driver.Its
In, the first detector 110 and the second detector 120 are all made of ultrasonic detector, so that measurement result is more accurate.
Further, the first alarm 112 includes visual alarm, and the second alarm 122 includes visual alarm.Specifically
, in actual application, alarm can be smoke alarm, and when device, which is triggered, alarms, smoke alarm can
It generates a large amount of smog to be prompted, is chiefly used in the wealthy area of wider field of view；Alarm can be visual alarm, when device is triggered
When alarm, visual alarm can issue certain illumination brightness and be prompted, in the case where being chiefly used in dark；Alarm
Can also be voice guard, when device, which is triggered, alarms, voice guard can make a sound and be prompted, be chiefly used in compared with
In the case where important and urgent.And in the present embodiment, since vehicle on expressway is more, the sound noise of ambient enviroment
Miscellaneous, the first alarm 112 and the second alarm 122 are all made of visual alarm and can play no matter in daytime or evening
Good warning function.Visual alarm be by multiple LED (Light Emitting Diode, light emitting diode) lamp group at,
It is cheap, it can reduce cost in practical applications.
Optionally, the first alarming device 11 is arranged on the protective plate of road, and road is arranged in the second alarming device 12
On protective plate.
Specifically, the anti-alarming device that knocks into the back in the present embodiment, the first detector 110 and the second detector 120 are all made of
Ultrasonic detector receives reflection by the first detector 110 and the second detector 120 to target vehicle emission detection signal
Signal simultaneously determines first time and the second time according to reflection signal.Therefore, by the first alarming device 11 and the second alarming device
12 are arranged on the protective plate on highway both sides, and are arranged at the same side, and the height distance road surface of setting is 700mm,
Enable detector to detect the vehicle of all size, occupied space can not only be saved, it is also possible that testing result is more
Add accurate
Optionally, the first alarming device 11 is at least one, and the second alarming device 12 is at least one.Specifically, passing through
First alarming device 11 is connect with the second alarming device 12, forms the anti-alarming device that knocks into the back in the present embodiment, when the first control
When device 111 processed generates control signal, second controller 121 is sent by the control signal, so that second controller 121 is according to this
Control signal controls the second alarm 122 and alarms, and then realizes the purpose prompted at a distance.And in actual application
In, it needs to connect together multiple first alarming devices 11 with the second alarming device 12, expands the anti-alarming device that knocks into the back
Detection range can detect constantly at each position so that the anti-alarming device that knocks into the back is applied on entire freeway facility
The case where vehicle, and rearward vehicle sounds an alarm in time.
As shown in Fig. 2, being illustrated with four alarming devices, any restriction is not done herein, wherein the first alarming device
11 and second alarming device 12 be two.When the first controller 111 in the first alarming device 11 generates control signal, the
One controller 111 passes to the second controller 121 in the second alarming device 12 for signal is controlled；Second controller 121 will be controlled
Signal processed passes to the first controller 111 in the first alarming device 11；Control signal is passed to the again by the first controller 111
Second controller 121 in two alarming devices 12, is successively transmitted.
As shown in figure 3, being illustrated with four alarming devices, any restriction is not done herein, wherein the first alarming device
11 be one, and the second alarming device 12 is three.When the first controller 11 in the first alarming device 11 generates control signal,
Control signal is passed to the second controller 121 in three the second alarming devices 12 simultaneously by the first controller 111.Actually answering
With in the process, the second alarming device 12 can be 300, i.e., when the first alarm 112 is alarmed, the first controller 111
300 the second alarms 122 can also be controlled simultaneously to alarm, and realize the purpose of long-distance alarm prompt.Wherein, each police
Showing device spacing is set as three meters, then the maximum distance that can be prompted is 1000m.
It further, further include charger.Specifically, in the anti-alarming device that knocks into the back in the present embodiment, comprising multiple
Detector, controller and alarm, and the offer for requiring power supply could work normally.Therefore, in the anti-alarming device that knocks into the back
The one or more chargers of upper connection, required electric energy is provided for it, ensure that the anti-alarming device that knocks into the back can be always in just
Normal working condition.
Optionally, charger is powered the anti-alarming device that knocks into the back using low-voltage mode.Specifically, in practical application
In the process, the power supply mode of charger can be generally divided into low-voltage mode and high voltage mode, and use the power supply of high voltage
Mode is generally chiefly used in high-power integrated circuit, and the higher equipment of energy consumption, and the anti-warning dress that knocks into the back in the present embodiment
It sets, belongs to low power consuming devices, therefore, being powered using low-voltage mode can be energy saving, reduces cost consumption.
Further, the spacing of the first alarm 112 and the second alarm 122 is set as three meters.Specifically, target vehicle
In the process of moving, successively pass through the second alarm 122 and the first alarm 112, and the length of vehicle body is generally 4m or so, it will
The spacing of first alarm 112 and the second alarm 122 is set as three meters, enables to testing result more accurate.It will not be because
For spacing is too small and increases cost, and final testing result is influenced, biggish error will not be generated because spacing is excessive,
The purpose for carrying out long-distance alarm prompt in time is not achieved.
It is understood that same or similar part can mutually refer in the various embodiments described above, in some embodiments
Unspecified content may refer to the same or similar content in other embodiments.
It should be noted that term " first ", " second " etc. are used for description purposes only in the description of the present invention,
It is not understood to indicate or imply relative importance.In addition, in the description of the present invention, unless otherwise indicated, it is " more
It is a " meaning refer at least two.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
Stating may not refer to the same embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be
It can be combined in any suitable manner in any one or more embodiment or examples.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model
Inside it can make changes, modifications, alterations, and variations to the above described embodiments.
Claims (10)
1. the anti-alarming device that knocks into the back of one kind characterized by comprising the first alarming device and the second alarming device, wherein first
Alarming device includes: that the first detector, the first controller, the first alarm and the first external button, the second alarming device include:
Second detector, second controller, the second alarm and the second external button；
First alarming device is connect with second alarming device, and first detector receives first instead for determining
It penetrates the first time of signal, second detector receives the second time of the second reflection signal for determining, wherein described
First reflection signal carries out after being emitted to target vehicle or barrier according to the first transmitting signal that first detector emits
Reflection obtains；It is described second reflection signal according to second detector emit second emit signal be emitted to target vehicle or
Reflection acquisition is carried out after barrier；
First controller is used to determine preset alarm condition according to the first time and second time, and is meeting
Control signal is issued to the second controller when preset alarm condition；
The second controller, which is used to control second alarm according to the control signal, issues alarm signal, to warn
State the vehicle of target vehicle or barrier rear；
The first external button and the second external button connect with first controller and the second controller respectively
It connects, user can carry out manual alarm by operating the first external button or the second external button.
2. preventing the alarming device that knocks into the back according to claim 1, which is characterized in that first controller is also used to: being met
The control signal is issued to first alarm when preset alarm condition, to indicate that first alarm is reported
Alert prompt.
3. preventing knocking into the back alarming device according to claim 1, which is characterized in that the preset alarm condition includes: described the
The difference of one time and second time are greater than or equal to preset time threshold.
4. preventing the alarming device that knocks into the back according to claim 1, which is characterized in that first detector includes ultrasonic listening
Device, second detector includes ultrasonic detector.
5. preventing the alarming device that knocks into the back according to claim 1, which is characterized in that first alarm includes light warning
Device, second alarm includes visual alarm.
6. preventing the alarming device that knocks into the back according to claim 1, which is characterized in that road is arranged in first alarming device
On protective plate, second alarming device is arranged on the protective plate of road.
7. preventing the alarming device that knocks into the back according to claim 1, which is characterized in that first alarming device is at least one,
Second alarming device is at least one.
8. preventing the alarming device that knocks into the back according to claim 1, which is characterized in that further include charger.
9. preventing the alarming device that knocks into the back according to claim 8, which is characterized in that the charger is using low-voltage mode to institute
The anti-alarming device that knocks into the back is stated to be powered.
10. preventing the alarming device that knocks into the back according to claim 1, which is characterized in that first alarm and second report
The spacing of alert device is set as three meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920265672.3U CN209417942U (en) | 2019-03-01 | 2019-03-01 | The anti-alarming device that knocks into the back of one kind |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920265672.3U CN209417942U (en) | 2019-03-01 | 2019-03-01 | The anti-alarming device that knocks into the back of one kind |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209417942U true CN209417942U (en) | 2019-09-20 |
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ID=67945012
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920265672.3U Expired - Fee Related CN209417942U (en) | 2019-03-01 | 2019-03-01 | The anti-alarming device that knocks into the back of one kind |
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| Country | Link |
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| CN (1) | CN209417942U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113628476A (en) * | 2021-06-24 | 2021-11-09 | 山东高速股份有限公司 | Method for preventing vehicles on highway from rear-end collision |
-
2019
- 2019-03-01 CN CN201920265672.3U patent/CN209417942U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113628476A (en) * | 2021-06-24 | 2021-11-09 | 山东高速股份有限公司 | Method for preventing vehicles on highway from rear-end collision |
| CN113628476B (en) * | 2021-06-24 | 2022-10-21 | 山东高速股份有限公司 | Method for preventing vehicles on highway from rear-end collision |
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Granted publication date: 20190920 |