CN108205144A - A kind of road work vehicle collision prewarning device, road work vehicle and anti-collision warning method - Google Patents
A kind of road work vehicle collision prewarning device, road work vehicle and anti-collision warning method Download PDFInfo
- Publication number
- CN108205144A CN108205144A CN201810262445.5A CN201810262445A CN108205144A CN 108205144 A CN108205144 A CN 108205144A CN 201810262445 A CN201810262445 A CN 201810262445A CN 108205144 A CN108205144 A CN 108205144A
- Authority
- CN
- China
- Prior art keywords
- collision
- warning device
- controller
- work vehicle
- road work
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/88—Lidar systems specially adapted for specific applications
- G01S17/93—Lidar systems specially adapted for specific applications for anti-collision purposes
- G01S17/931—Lidar systems specially adapted for specific applications for anti-collision purposes of land vehicles
Abstract
The invention discloses a kind of road work vehicle collision prewarning devices, which is characterized in that the collision warning device includes：Sensing device, processing module and warning device；The sensing device includes infrared transmitter, receiver and controller, the infrared transmitter sends out infrared signal by controller control, and the infrared signal is received by the receiver after being reflected by object and is sent to controller processing, by treated, data are sent to processing module to controller；The processing module receives the signal data that controller is sent out, and warning device is controlled according to the signal data；The receiver is 4, on the outside of infrared transmitter, and using infrared transmitter as center of circle circumference uniform distribution.The present invention also provides a kind of road work vehicle and anti-collision warning methods.The present invention is imaged by active infra-red and by active warning device, and the vehicle that comes for having risk of collision to rear in time warns, and reduces the risk of collision.
Description
Technical field
The present invention relates to vehicle arrangement field, particularly a kind of road work vehicle collision prewarning device, road work vehicle
And anti-collision warning method.
Background technology
With public vehicles increasingly saturation, highway service working truck increasingly increases, and the situation of vehicle safety work is compeled
The eyebrows and eyelashes proposes novel test to the safety of highway service working truck.It runs at a low speed, this characteristic of parking operation leads to many things
Therefore occur.Mobile phone, automobile airtight sound insulation are played in driving, and fatigue driving etc. has resulted in many rear-end collisions.Heavy duty work vehicle exists
During operation, loud shellfish loudspeaker can form long-term fixed noise pollution again.
The safety assisting system of current sedan limousine configuration is preposition design, radar detection or shadow using millimeter wave
As sensing.Millimetre-wave radar belongs to electric wave signal, the metallic structures of trackside and the various well lids on ground, it can be caused to generate very
More false alarms；Image mode sensor belongs to passive sensor, is often influenced by extraneous light intensity and sleet mist.These disadvantages
The miscue caused is held to generate driver, and the sense of hearing is tired and system is felt or even actively closed to paralysis.In addition more general crowds
Property pony car does not have more than technical functionality, and bus or middle truck are also at all without this system.
More than content is based on the technology analysis of rear vehicle, and the vehicle to be knocked into the back does not have any Initiative Defense to carry
Show and effectively hit dangerous advance notice.
Invention content
The object of the present invention is to provide a kind of road work vehicle collision prewarning device, road work vehicle and anti-collision warnings
Method, to solve the problems, such as that existing road work vehicle is easily knocked into the back.
To achieve these goals, a kind of road work vehicle collision prewarning device provided by the invention, the collision are pre-
Alarm device includes：
Sensing device, processing module and warning device；
The sensing device includes infrared transmitter, receiver and controller, and the infrared transmitter is controlled by controller
Infrared signal is sent out, and the infrared signal is received by the receiver after being reflected by object and issues controller, controller processing is simultaneously
It is sent to processing module；
The processing module receives the signal data that controller is sent out, and warning device is controlled according to the signal data
System；
The receiver is 4, on the outside of infrared transmitter, and using infrared transmitter as center of circle circumference uniform distribution.
Preferably, the warning device is user reminding device.
Preferably, the warning device is rear car warning device.
On the one hand, the present invention also provides a kind of road work vehicle, the vehicle is equipped with anti-collision warning as described above
Device, and the sensing device in the collision warning device is installed on the tail portion of vehicle.
Preferably, the sensing device quantity of the vehicle tail installation is two.
On the other hand, the present invention also provides a kind of road work vehicle collision prewarning methods, which is characterized in that passes through power
Above-mentioned road work vehicle collision prewarning device is implemented, and follows the steps below successively：
Controller in sensing device sends out instruction to infrared transmitter, infrared transmitter is made to be sent out according to certain frequency red
External signal；
The infrared signal that receiver reception is reflected back by object, and be transferred to controller and digital letter is converted by controller
Number it is sent to processing module；
Processing module obtains object data according to digital signal, and judges whether risk of collision；
If there are risk of collision, processing module control warning device starts.
Preferably, the object data includes shape data, position data and the speed data of object.
A kind of road work vehicle collision prewarning device provided by the invention, road work vehicle and anti-collision warning method,
It has the advantages that：
It is imaged by active infra-red, solves the problems, such as that signal is easily influenced by outside environmental elements, while prevented week
Enclose the interference of light；
By active warning device, the vehicle that comes for having risk of collision to rear in time warns, and reduces collision
Risk.
Description of the drawings
Fig. 1 is a kind of road work vehicle collision prewarning device architecture figure provided by the invention.
Fig. 2 is sensing device structure diagram in a kind of road work vehicle collision prewarning device provided by the invention.
Fig. 3 is sensing device scheme of installation in a kind of road work vehicle collision prewarning device provided by the invention.
In figure：
1. 11. infrared transmitter of sensing device, 12. receiver
Specific embodiment
The design of the present invention is further elaborated with reference to the accompanying drawings and detailed description.
- 3 are please referred to Fig.1, an embodiment of the present invention provides a kind of road work vehicle collision prewarning device, the vehicle touches
Prior-warning device is hit on road work vehicle, for being led to other vehicles from rear close to the road work vehicle
Dynamic warning.
The road work vehicle collision prewarning device includes sensing device 1, processing module and warning device, the sensing
Device 1 include infrared transmitter 11, receiver 12 and controller, processing module respectively with the controller in sensing device 1 and police
Device electrical connection is accused, controller is electrically connected with infrared transmitter 11 and receiver 12.An infrared transmitter in the present embodiment
11 correspond to four receivers 12, and four receivers 12 are the center of circle with infrared transmitter 1, and circumference uniform distribution is outside infrared transmitter 1
Side.
The present invention is avoided general millimeter-wave signal and is easily interfered by various metal non-vehicle objects using infrared transmitter 1
The problem of, also avoid the problem of general image mode sensor is easily influenced by natural light outside line intensity and weather.
Meanwhile the directive property of infrared signal is more preferable, can be controlled the infrared signal of transmitting at one using infrared transmitter
On fixed direction, the interference of ambient environmental factors is also avoided.
In the present embodiment, copy biological vision system and in a manner that an infrared transmitter corresponds to four receivers
Imaging, to obtain better imaging effect.
In the present embodiment, sensing device 1 is installed on the rear portion of road work vehicle, for being supervised to front vehicle
Control.
Further, in order to further improve imaging effect, in some other embodiments, in the tail portion of single car
Two sensing devices 1 are set simultaneously, and the line of two sensing devices is parallel to the ground.
It is noted that the present invention is not specifically limited the specific location and quantity of sensing device setting, this
Field technology personnel can be selected according to actual needs.
Infrared transmitter is controlled by controller, and when prior-warning device starts, controller controls infrared transmitter with certain
Frequency emits infrared signal.
Infrared signal receives after object reflects by being set to receiver on the outside of infrared transmitter, and will receive
Infrared signal is sent to controller, is converted to digital signal by controller and is sent to processing module and is handled.
The infrared signal that receiver single receives can obtain the range data between pip and infrared transmitter.
Processing module is carried out according to the digital signal, the frequency of controller control infrared transmitter transmitting that receive at imaging
Reason, obtains the object data of each object of road work rear view of vehicle.
The object data includes shape data, position data and the speed data of object.
The shape data is the infrared signal reflective surface area of object obtained by receiver, and processing module is according to object
Infrared external reflection area and compare concrete type (such as motor vehicle, pedestrian, the non-motor vehicle of the data judgment object that store in advance
Deng).
The position data is the distance of object distance road work vehicle obtained by receiver.
The speed data is obtained by receiver according to the multiple infrared reflectance signals of object same in a period of time
Object is with respect to the speed of maintenance vehicles.
Shape data, position data and the speed data of processing module binding object judge whether risk of collision.
In some embodiments, processing module according to the shape data judgment object type of object and judges the object of object
Whether type is the object type that need to send out early warning.
Judge the distance between road work vehicle and object whether in risk distance later.
Judge the relative velocity between road work vehicle and object whether in dangerous section later.
If the object type of the object is the object type that need to send out early warning, and between the object and road work vehicle
Distance is in risk distance and relative velocity is in dangerous section, then processing module judges the object and road work vehicle
There are risk of collision.
Further, in some embodiments, processing module judges rear object to be small-sized according to the shape data of object
Car, for the object type of early warning need to be sent out.
And distance of the minibus apart from road work vehicle is 65m, in the risk distance of 70m.
And the minibus is 50km/H relative to the speed of road work vehicle, in the dangerous section more than 30km/H
It is interior.
Then processing module judges the station wagon there are risk of collision.
When there are during risk of collision, processing module control warning device starts.
In some embodiments of the invention, the warning device is user reminding device, is such as driven in road work vehicle
The sound-light reminding device set in cabin is sailed, driver is reminded to handle in time rear danger.
In some other embodiment of the present invention, the warning device is rear car warning device, such as in road work vehicle
The loudspeaker of rear portion installation also or luminous warning marker, to remind rear car danger ahead, slow down or avoid in time.
Warning device is in starting state until user's active cancellation or road work vehicle and rear object collisionless wind
Until danger.
In conclusion road work vehicle collision prewarning device provided by the invention, road work vehicle and anti-collision warning
Method, can active rear generate risk of collision when start warning device, and be automatically closed when risk releases, both reduced
The risk of collision, and reduce open noise pollution and the generation of optical pollution, have to people life and civil order
It improves very well.Simultaneously as employing the form of infrared signal, the interference being subject to is low, and the reliability of whole device is high.
Further, road work vehicle collision prewarning device provided by the present invention can also be applied to road work
The anti-collision warning of mechanical equipment or road temporary facility etc. can effectively prevent that society occurs in road construction maintenance processes
The accident of vehicle collision.
Specific case used herein elaborates inventive concept, the explanation of above example is only intended to
It helps to understand core concept of the invention.It should be pointed out that for those skilled in the art, this is not being departed from
Under the premise of inventive concept, any obvious modification, equivalent replacement or the other improvements made should be included in the present invention
Protection domain within.
Claims (7)
1. a kind of road work vehicle collision prewarning device, which is characterized in that the collision warning device includes：
Sensing device, processing module and warning device；
The sensing device includes infrared transmitter, receiver and controller, and the infrared transmitter is sent out by controller control
Infrared signal, and the infrared signal is received by the receiver after being reflected by object, is handled by controller and is sent to processing mould
Block；
The processing module receives the signal data that controller is sent out, and warning device is controlled according to the signal data；
The receiver is 4, on the outside of infrared transmitter, and using infrared transmitter as center of circle circumference uniform distribution.
2. collision warning device according to claim 1, which is characterized in that the warning device is user reminding device.
3. collision warning device according to claim 1, which is characterized in that the warning device is rear car warning device.
4. a kind of road work vehicle, which is characterized in that it is pre- that the vehicle is equipped with collision as described in any one of claims 1-3
Alarm device, and the sensing device in the collision warning device is installed on the tail portion of vehicle.
5. road work vehicle according to claim 4, which is characterized in that the sensing device number of the vehicle tail installation
Measure is two.
6. a kind of road work vehicle collision prewarning method, which is characterized in that pass through the road any in claim 1-3
Working truck collision warning device is implemented, and follows the steps below successively：
Controller in sensing device sends out instruction to infrared transmitter, and infrared transmitter is made to send out infrared letter according to certain frequency
Number；
The infrared signal that receiver reception is reflected back by object, and be transferred to controller and digital signal hair is converted by controller
Give processing module；
Processing module obtains object data according to digital signal, and judges whether risk of collision；
If there are risk of collision, processing module control warning device starts.
7. anti-collision warning method according to claim 6, which is characterized in that the object data includes the outer figurate number of object
According to, position data and speed data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810262445.5A CN108205144A (en) | 2018-03-28 | 2018-03-28 | A kind of road work vehicle collision prewarning device, road work vehicle and anti-collision warning method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810262445.5A CN108205144A (en) | 2018-03-28 | 2018-03-28 | A kind of road work vehicle collision prewarning device, road work vehicle and anti-collision warning method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108205144A true CN108205144A (en) | 2018-06-26 |
Family
ID=62606858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810262445.5A Pending CN108205144A (en) | 2018-03-28 | 2018-03-28 | A kind of road work vehicle collision prewarning device, road work vehicle and anti-collision warning method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108205144A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111381232A (en) * | 2020-03-27 | 2020-07-07 | 深圳市深水水务咨询有限公司 | River channel safety control method based on photoelectric integration technology |
| CN112258894A (en) * | 2020-10-21 | 2021-01-22 | 江苏中路工程技术研究院有限公司 | Active safety anti-collision system and method for highway construction operation |
| CN114312920A (en) * | 2022-01-04 | 2022-04-12 | 中车株洲电力机车有限公司 | Rail vehicle early warning braking device and method for test line |
Citations (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3621961A1 (en) * | 1986-07-01 | 1988-01-14 | Wenglorz Sensoric Gmbh | Reflected-light barrier for the contactless tracking of an instrument |
| JPH0711036U (en) * | 1993-07-09 | 1995-02-14 | 酒井重工業株式会社 | Infrared signal receiver |
| JPH07229961A (en) * | 1994-02-22 | 1995-08-29 | Hitachi Ltd | Apparatus and method of detecting object about vehicle |
| JPH096433A (en) * | 1995-06-19 | 1997-01-10 | Kawasaki Heavy Ind Ltd | Automated guided vehicle and its non-contact type obstacle detecting method |
| US20050122218A1 (en) * | 2003-12-06 | 2005-06-09 | Goggin Christopher M. | Ranging and warning device using emitted and reflected wave energy |
| US20050134440A1 (en) * | 1997-10-22 | 2005-06-23 | Intelligent Technolgies Int'l, Inc. | Method and system for detecting objects external to a vehicle |
| CN102729893A (en) * | 2012-06-18 | 2012-10-17 | 田祥鑫 | Anti-collision device for automobile |
| CN102795184A (en) * | 2012-08-27 | 2012-11-28 | 奇瑞汽车股份有限公司 | Active avoiding system for preventing rear-end collision and control method thereof |
| CN103072537A (en) * | 2013-02-05 | 2013-05-01 | 湖南大学 | Automotive collision avoidance safety protecting device and protecting method based on infrared image processing |
| CN103419737A (en) * | 2013-08-15 | 2013-12-04 | 深圳市赛格导航科技股份有限公司 | Anti-collision control method and system for vehicle |
| CN203864558U (en) * | 2014-01-24 | 2014-10-08 | 长安大学 | Car rear-end collision prevention alarming device |
| CN104648254A (en) * | 2015-02-09 | 2015-05-27 | 浙江吉利汽车研究院有限公司 | Automobile vehicle rearview mirror folding system |
| CN104658318A (en) * | 2015-02-04 | 2015-05-27 | 深圳市航盛电子股份有限公司 | Forward anti-collision prewarning method based on infrared sensor |
| CN105015520A (en) * | 2015-07-27 | 2015-11-04 | 苏州宏展信息科技有限公司 | Anti-collision system for automobile |
| CN105292085A (en) * | 2015-11-02 | 2016-02-03 | 清华大学苏州汽车研究院（吴江） | Vehicle forward collision avoidance system based on infrared laser aid |
| JP2017076431A (en) * | 2016-12-27 | 2017-04-20 | エイディシーテクノロジー株式会社 | Vehicle control device |
| CN106585549A (en) * | 2016-12-14 | 2017-04-26 | 兰州工业学院 | Intelligent anticollision system for vehicles |
| CN106882183A (en) * | 2017-02-24 | 2017-06-23 | 宁波吉利汽车研究开发有限公司 | A kind of caution system and alarming method for power for preventing vehicle rear-end collision |
| CN107344552A (en) * | 2017-08-29 | 2017-11-14 | 哈尔滨理工大学 | Dynamic monitoring omnidirectional vehicle anti-collision early warning system |
| CN107791943A (en) * | 2017-10-26 | 2018-03-13 | 南京越博电驱动系统有限公司 | The preceding collision warning systems and method for early warning of a kind of pure electric automobile |
| CN107804263A (en) * | 2017-10-24 | 2018-03-16 | 北京汽车研究总院有限公司 | It is a kind of come car based reminding method, car body controller and automobile |
| CN207106492U (en) * | 2017-08-29 | 2018-03-16 | 哈尔滨理工大学 | Dynamic monitoring omnidirectional vehicle anti-collision early warning system |
-
2018
- 2018-03-28 CN CN201810262445.5A patent/CN108205144A/en active Pending
Patent Citations (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3621961A1 (en) * | 1986-07-01 | 1988-01-14 | Wenglorz Sensoric Gmbh | Reflected-light barrier for the contactless tracking of an instrument |
| JPH0711036U (en) * | 1993-07-09 | 1995-02-14 | 酒井重工業株式会社 | Infrared signal receiver |
| JPH07229961A (en) * | 1994-02-22 | 1995-08-29 | Hitachi Ltd | Apparatus and method of detecting object about vehicle |
| JPH096433A (en) * | 1995-06-19 | 1997-01-10 | Kawasaki Heavy Ind Ltd | Automated guided vehicle and its non-contact type obstacle detecting method |
| US20050134440A1 (en) * | 1997-10-22 | 2005-06-23 | Intelligent Technolgies Int'l, Inc. | Method and system for detecting objects external to a vehicle |
| US20050122218A1 (en) * | 2003-12-06 | 2005-06-09 | Goggin Christopher M. | Ranging and warning device using emitted and reflected wave energy |
| CN102729893A (en) * | 2012-06-18 | 2012-10-17 | 田祥鑫 | Anti-collision device for automobile |
| CN102795184A (en) * | 2012-08-27 | 2012-11-28 | 奇瑞汽车股份有限公司 | Active avoiding system for preventing rear-end collision and control method thereof |
| CN103072537A (en) * | 2013-02-05 | 2013-05-01 | 湖南大学 | Automotive collision avoidance safety protecting device and protecting method based on infrared image processing |
| CN103419737A (en) * | 2013-08-15 | 2013-12-04 | 深圳市赛格导航科技股份有限公司 | Anti-collision control method and system for vehicle |
| CN203864558U (en) * | 2014-01-24 | 2014-10-08 | 长安大学 | Car rear-end collision prevention alarming device |
| CN104658318A (en) * | 2015-02-04 | 2015-05-27 | 深圳市航盛电子股份有限公司 | Forward anti-collision prewarning method based on infrared sensor |
| CN104648254A (en) * | 2015-02-09 | 2015-05-27 | 浙江吉利汽车研究院有限公司 | Automobile vehicle rearview mirror folding system |
| CN105015520A (en) * | 2015-07-27 | 2015-11-04 | 苏州宏展信息科技有限公司 | Anti-collision system for automobile |
| CN105292085A (en) * | 2015-11-02 | 2016-02-03 | 清华大学苏州汽车研究院（吴江） | Vehicle forward collision avoidance system based on infrared laser aid |
| CN106585549A (en) * | 2016-12-14 | 2017-04-26 | 兰州工业学院 | Intelligent anticollision system for vehicles |
| JP2017076431A (en) * | 2016-12-27 | 2017-04-20 | エイディシーテクノロジー株式会社 | Vehicle control device |
| CN106882183A (en) * | 2017-02-24 | 2017-06-23 | 宁波吉利汽车研究开发有限公司 | A kind of caution system and alarming method for power for preventing vehicle rear-end collision |
| CN107344552A (en) * | 2017-08-29 | 2017-11-14 | 哈尔滨理工大学 | Dynamic monitoring omnidirectional vehicle anti-collision early warning system |
| CN207106492U (en) * | 2017-08-29 | 2018-03-16 | 哈尔滨理工大学 | Dynamic monitoring omnidirectional vehicle anti-collision early warning system |
| CN107804263A (en) * | 2017-10-24 | 2018-03-16 | 北京汽车研究总院有限公司 | It is a kind of come car based reminding method, car body controller and automobile |
| CN107791943A (en) * | 2017-10-26 | 2018-03-13 | 南京越博电驱动系统有限公司 | The preceding collision warning systems and method for early warning of a kind of pure electric automobile |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111381232A (en) * | 2020-03-27 | 2020-07-07 | 深圳市深水水务咨询有限公司 | River channel safety control method based on photoelectric integration technology |
| CN112258894A (en) * | 2020-10-21 | 2021-01-22 | 江苏中路工程技术研究院有限公司 | Active safety anti-collision system and method for highway construction operation |
| CN114312920A (en) * | 2022-01-04 | 2022-04-12 | 中车株洲电力机车有限公司 | Rail vehicle early warning braking device and method for test line |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102632839B (en) | Back sight image cognition based on-vehicle blind area early warning system and method | |
| US20180357484A1 (en) | Video processing device and video processing method | |
| CN113223311A (en) | Vehicle door opening anti-collision early warning method based on V2X | |
| US20120166042A1 (en) | Sound output device for electric vehicle | |
| CN104340117A (en) | Anti-collision radar system for vehicle | |
| CN109946653A (en) | A kind of radar arrangement | |
| CN108205144A (en) | A kind of road work vehicle collision prewarning device, road work vehicle and anti-collision warning method | |
| WO2020100569A1 (en) | Control device, control method, and sensor control system | |
| CN113561892B (en) | Intelligent anti-collision system and method for opening door of automobile | |
| EP4040418A1 (en) | Traffic control system, traffic control method, and control device | |
| CN109001743A (en) | Tramcar anti-collision system | |
| CN106314424A (en) | Overtaking assisting method and device based on automobile and automobile | |
| CN205930493U (en) | Vehicle driving side warning system | |
| US9616814B1 (en) | Vehicle security alarming system determining relative velocity between a front car and a rear car by sounds retrieved therefrom | |
| CN203267899U (en) | Driving system in foggy days | |
| CN108466582A (en) | A kind of millimeter wave headlight for vehicle light lamp automatic switchover system | |
| US20230152441A1 (en) | Object detection device, information processing device, and object detection method | |
| CN214752271U (en) | Speed measuring device based on millimeter wave radar | |
| US20220236414A1 (en) | Measurement device, measurement method, and program | |
| CN204196776U (en) | Anti-collision safety electric car | |
| CN210090663U (en) | Radar structure | |
| CN208061453U (en) | A kind of road work vehicle collision prewarning device and road work vehicle | |
| KR102595574B1 (en) | Methods for recognizing a stop line of an autonomous vehicle | |
| CN216101840U (en) | Close type vehicle-mounted system capable of automatically triggering images | |
| CN107450073A (en) | A kind of millimetre-wave radar |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20181016 Address after: 102600 South San Yu Cun 3, Xihongmen Town, Daxing District, Beijing Applicant after: Beijing Shoufa Highway Maintenance & Construction Co., Ltd. Address before: 101199 Fuxing 24, Tongzhou District, Beijing Applicant before: Li Qiang |