CN104091459A - Heavy weather intelligent detection displaying system - Google Patents

Heavy weather intelligent detection displaying system Download PDF

Info

Publication number
CN104091459A
CN104091459A CN201410334444.9A CN201410334444A CN104091459A CN 104091459 A CN104091459 A CN 104091459A CN 201410334444 A CN201410334444 A CN 201410334444A CN 104091459 A CN104091459 A CN 104091459A
Authority
CN
China
Prior art keywords
intelligent
module
unit
display
weather
Prior art date
Application number
CN201410334444.9A
Other languages
Chinese (zh)
Other versions
CN104091459B (en
Inventor
祁东
Original Assignee
沈阳翼飞达交通设施有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 沈阳翼飞达交通设施有限公司 filed Critical 沈阳翼飞达交通设施有限公司
Priority to CN201410334444.9A priority Critical patent/CN104091459B/en
Publication of CN104091459A publication Critical patent/CN104091459A/en
Application granted granted Critical
Publication of CN104091459B publication Critical patent/CN104091459B/en

Links

Abstract

The invention discloses a heavy weather intelligent detection displaying system and belongs to the technical field of heavy weather detection and traffic information hinting. The intelligent detection displaying system comprises a central control processing unit, an intelligent detecting unit and a displaying unit. The central control processing unit controls the intelligent detecting unit and the displaying unit. The central control processing unit comprises a first single chip microcomputer, a short message control module and a wireless transmission module. The intelligent detecting unit comprises a second single chip microcomputer, an information collecting module, a rain-snow intelligent identification module and a foggy weather visibility detecting module. The second single chip microcomputer controls the information collecting module, the rain-snow intelligent identification module and the foggy weather visibility detecting module. The displaying unit comprises a variable self-illumination displaying board. The heavy weather intelligent detection displaying system can detect outdoor weather conditions in real time, during outdoor weather sudden changing, an external sensor detects signals which are fed back to a main machine, speed limiting or signal lamp hinting is carried out through the displaying board, passing vehicles and pedestrians are warned to be careful or reduce speed to move slowly, and accordingly traffic accidents are reduced.

Description

Inclement weather Intelligent Measurement display system

Technical field

The present invention relates to inclement weather and detect and traffic information promoting technical field, relate in particular to a kind of inclement weather Intelligent Measurement display system.

Background technology

China is vast in territory, and weather is complicated and changeable, and traffic control is various, and weather extremes not only has tremendous influence to daily traffic administration work, and also has contacting of many inherences between the generation of traffic hazard.Inclement weather has negative influence in various degree to people, car, road and traffic environment.Often bring out great, especially big pernicious traffic hazard.The inner link occurring between research adverse weather condition and traffic hazard, takes preventive measure targetedly, thereby eliminates the negative influence of adverse weather condition to traffic safety, to the very important meaning that has of prevention traffic hazard.Annual because severe weather conditions, as the weather extremes impact of the bursts such as heavy snow, heavy rain, dense fog, haze, sandstorm, causes change in weather, driver's moment sight line is unclear, and the speed of a motor vehicle is too fast, and not in time, the traffic hazard causing reaches up to ten thousand in reaction.

Also do not have for above-mentioned inclement weather for driver and the more effective solution of pedestrian in driving at present.

Summary of the invention

In order to solve the problems of the technologies described above, the object of this invention is to provide a kind of inclement weather Intelligent Measurement display system, this Intelligent Measurement display system can detect outside weather conditions in real time, in the time of outdoor change in weather, external sensor detects signal, signal feedback, to host computer system, and is made to the prompting of speed limit or signal lamp by display board, make vehicular traffic pedestrian take care in time or slow down and go slowly.

The object of the invention is to be achieved through the following technical solutions:

A kind of inclement weather Intelligent Measurement display system, comprises center-control processing unit, intelligent detection unit and display unit, center-control processing unit control intelligent detection unit and display unit.

Described center-control processing unit comprises the first single-chip microcomputer, note control module and wireless transport module.

Described intelligent detection unit comprises second singlechip, information acquisition module, sleet intelligent identification module and greasy weather visibility detection module; Described second singlechip control information acquisition module, sleet intelligent identification module and greasy weather visibility detection module.

Described display unit comprises variable autoluminescence display board, and described variable autoluminescence display board is light emitting diode; Described variable autoluminescence display board can be according to presetting replacing displaying contents.

Described wireless transport module is processed the communication between intelligent detection unit and display unit.

Described note control module is crossed note by the information exchange of intelligent detection unit and display unit and is transferred to client.

Described information acquisition module is located at outdoor, described information acquisition module and is comprised sleet sensor and visibility sensor.

By the technical scheme of the invention described above, inclement weather Intelligent Measurement display system of the present invention is installed on outdoor, can detect in real time outside weather conditions, in the time of outdoor change in weather, external sensor detects signal, signal feedback, to second singlechip (slave) and the first single-chip microcomputer (main frame), and is made to the prompting of speed limit or signal lamp by variable autoluminescence display board, and prompting vehicular traffic pedestrian takes care or slows down and goes slowly.So just can not become suddenly wet and slippery because of visibility reduction suddenly or road, the speed of a motor vehicle is too fast, the reasons such as braking distance is elongated cause traffic hazard, the present invention can improve the driving safety of pedestrian and vehicle under adverse weather condition greatly, reduce accident rate, can send timely and effectively warning.

Brief description of the drawings

Fig. 1 is Intelligent Measurement display system architectures schematic diagram of the present invention;

Fig. 2 is information acquisition module of the present invention and heating unit structure schematic diagram;

Fig. 3 is a kind of embodiment structural representation of intelligent detection unit of the present invention;

Fig. 4 is center-control processing unit circuit structure diagram of the present invention;

Fig. 5 is intelligent detection unit and display unit circuit structural drawing;

Wherein, Fig. 5 a is display interface circuit structural drawing;

Fig. 5 b is circuit construction of electric power figure;

Fig. 5 c is external interface circuit structural drawing;

Fig. 5 d is 3.3V circuit construction of electric power figure;

Fig. 5 e is reverse electrical source circuit structure diagram;

Fig. 5 f is amplifying signal circuit structure diagram;

Fig. 5 g is for driving annunciator and heating circuit structure figure;

Fig. 5 h is set point adjustment circuit structure diagram;

Fig. 5 i is 12V circuit construction of electric power figure.

Embodiment

Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated:

As shown in Figure 1, Figure 2 and Figure 3, a kind of inclement weather Intelligent Measurement display system, comprise center-control processing unit 10, intelligent detection unit 20 and display unit 30, center-control processing unit 10 is controlled intelligent detection unit 20 and display unit 30, described center-control processing unit 10 receives the data (information) that intelligent detection unit 20 and display unit 30 transmit and processes, and center-control processing unit 10 sends instruction (information) and control the work of intelligent detection unit 20 and display unit 30 to intelligent detection unit 20 and display unit 30.

As shown in Figure 1, described center-control processing unit 10 comprises the first single-chip microcomputer (being main frame) 11, note control module 12 and wireless transport module 13.Note control module 12 can realize relevant this Intelligent Measurement display system information is sent to predefined client by short message mode.Wireless transport module 13 is controlled the wireless transmission between each unit or module.

The communication between intelligent detection unit 20 and display unit 30 can be controlled and process to described wireless transport module 13.

Described note control module 12 is crossed note by the information exchange of intelligent detection unit 20 and display unit 30 and is transferred to client, informs the information of predefined client about severe weather conditions.

As shown in Figure 1, described intelligent detection unit 20 comprises second singlechip 21, information acquisition module 22, sleet intelligent identification module 23 and greasy weather visibility detection module 25.Described second singlechip 21 control information acquisition modules 22, sleet intelligent identification module 23 and greasy weather visibility detection module 24, described second singlechip (slave) 21 receives information acquisition module 22, the data (information) that sleet intelligent identification module 23 and greasy weather visibility detection module 24 transmit are also processed, second singlechip 21 is to information acquisition module 22, sleet intelligent identification module 23 and greasy weather visibility detection module 24 send instruction (information) control information acquisition module 22, the work of sleet intelligent identification module 23 and greasy weather visibility detection module 24.

Described display unit 30 comprises variable autoluminescence display board, and described variable autoluminescence display board is light emitting diode.Described variable autoluminescence display board can be according to presetting replacing displaying contents.

As shown in Figure 2, described information acquisition module 22 is located at outdoor, described information acquisition module 22 and is comprised sleet sensor 221 and visibility sensor 222.

As shown in Figure 2, work in order to realize in the winter time, this Intelligent Measurement display system also comprises heating unit 40, and described heating unit 40 is located on information acquisition module 22.The setting of heating unit 40 is detection and the antifreeze problems of mal-condition lower sensor in winter in order to solve rainy day snow sky.Because consider severe cold weather in winter, snow is large, easily cause capped, the icing problem of outdoor information acquisition module 22 of being located at, on sleet information acquisition module 22, (can be located at below this module) and install special low-voltage heating unit 40 additional, the continuous data that this Intelligent Measurement display system can be returned according to sleet sensor 221 collection is frozen to sensor or the situation such as sleet covering judges, and issuing command so start heating unit 40 generate heat, melt accumulated snow accumulated ice, ensure that this Intelligent Measurement display system is normally used.

As shown in Figure 3, described intelligent detection unit 20 also comprises manual note control module 25, and client can require to implement involuntary conversion according to subjectivity.This system has two groups of control models, and one is automatic control mode, and system detects automatically, reaction automatically, automatic-prompting pedestrian vehicle; The second is manual note control model, and client can require to implement involuntary conversion by manual note control module 25 according to subjectivity.This system is complete Intelligent Measurement under automatic control mode, intelligent conversion, and each testing result all can send to client's mobile phone by note form, informs the content of the current demonstration of client's display board.

When described manual note control module 25 is switched to manual mode, sending conversion command or client by note to client's mobile phone directly sends order with mobile phone at far-end and allows the displaying contents of display unit 30 force variation, client is after sending involuntary conversion, client's note order is made as the first priority by described intelligent detection unit 20, the preferential customer command that shows of described display unit 30, shields automatic detection display content.

Described variable autoluminescence display board is located at outdoor.This variable autoluminescence display board can normally be worked under cryogenic conditions, the font of simulating display screen, and the light emitting diode (LED) of employing high brightness, power consumption is extremely low.

Described visibility sensor 222 per minutes detect once automatically to weather conditions, and report back second singlechip 21 and the first single-chip microcomputer 11 by the signal gathering, the first single-chip microcomputer 11 and then judged result is passed to outernal display unit 30, outernal display unit 30 shows corresponding result.The signal gathering is reported back second singlechip 21, and data are passed to the first single-chip microcomputer 11 by second singlechip 21.

Described sleet sensor 221 is the inductance sleet moisture detection sensor with analog signals output.

In order to ensure the normal work of whole Intelligent Measurement display system, technical scheme of the present invention also comprises SPU, and described SPU is selected solar storage battery.

Described wireless transport module adopts high-frequency signal, and transmission range can reach 300 meters farthest.Between intelligent detection unit 20 and display unit 30, adopt middle distance wireless transport module 13, controlled in wireless, wireless variation, adopts high-frequency signal, anti-interference strong, and accurately, transmission maximum distance can reach 300 meters in transmission.

Described information acquisition module 22 is arranged on the fog section that takes place frequently, and uses wireless signal control.Transmit a signal on the display board at 150m place, to the reserved brake snubbing time of vehicle, adopt the effectively high problem of solving road construction bracing wire cost of controlled in wireless.

Fig. 4 and Fig. 5 disclose the partial function circuit structure diagram of center-control processing unit 10 of the present invention, intelligent detection unit 20 and display unit 30.

Technical scheme of the present invention is mainly used on urban road, city expressway, highway, highway, can play car because the inclement weather reasons such as change in weather cause the intelligent warning function of traffic congestion and traffic hazard.This inclement weather Intelligent Measurement display system is inner Single-chip Controlling, can select solar storage battery power supply, and can change warning content according to setting, adopt high brightness, low energy consumption light emitting diode, meets the requirement of current conservation-minded society, low-carbon environment-friendly, energy-saving and emission-reduction.

Technical scheme of the present invention also has following technique effect:

(1) native system can be worked under outdoor low cold weather, does not need artificial monitoring, saves manpower, and detection information is passed back constantly.Visibility sensor 222 per minutes detect once automatically to weather conditions, to the weather that may occur, as the rainy day, snow day, greasy weather or this is compared with atrocious weather, comprise that the weather such as haze weather, sandstorm can carry out Intelligent Measurement, when measuring weather outside when abnormal, the very first time can be reported back system host the signal gathering, main frame is after moment identification, judge, adjust outside display sign, so that prompting vehicular traffic is taken care travel at once.The excellent part of this system is, volume is little, and power consumption is little, and energy-conserving and environment-protective do not need civil power work, rely on solar cell just can normally work completely.The present invention adopts technical grade module and single chip circuit, can be competent at the severe cold weather in northeast completely.The weather conditions checkout equipment having in the market all easily several ten thousand, the hundreds of thousands easily of import, and be all meteorological special main equipment, in the improper large-area applications of transit equipment.Cost is high, complex structure, and inclement weather Intelligent Measurement display system of the present invention has been filled up a blank of warning traffic equipment, and to driving, pedestrains safety has great significance.

(2) note control, live signal gathers automatically, and transmitting is returned automatically.This system display sign content can manually be controlled according to client's subjective desire.Because being system, sleet mist variable sign automatically identifies control, so send conversion command all can to when being switched to manual mode client's mobile phone at every turn, client also can directly send order at far-end with mobile phone allows label force to change, client is after sending involuntary conversion, rugged surroundings detection display system can be made as the first priority by client's note order, the preferential customer command that shows, shielding detects automatically.

Intelligent detection unit principle of work is as follows:

1, greasy weather visibility detection module principle of work

Greasy weather visibility detection module is mainly for detection of the greasy weather in weather and haze weather, and cardinal principle is as follows:

Utilize in Infrared laser emission and receiving course the degree value being stopped by airborne particle or water smoke to judge whether to occur anomalous weather (greasy weather or haze sky), transmitting terminal is infrared laser head, is receiving end photoresistance apart from 600mm place.Under normal weather, the Infrared signal that receiving end receives is fixed value, in the time occurring stopping, the Infrared signal that (having mist or haze) receiving end receives starts decay, and in the time that light attenuation arrives specified value, visibility detection module thinks that the greasy weather (haze sky) occurs, then by greasy weather (haze sky) signal feedback to master routine, master routine, through single-chip microcomputer processing, amplifies signal, starts LED.

2, sleet intelligent identification module principle of work

Sleet intelligent identification module, mainly for detection of the rainy day and the snow day that occur in weather with identification, mainly detects principle as follows:

Utilize " with the inductance sleet moisture detection sensor (i.e. probe) of analog signals output ", when rainwater or snow-broth were fallen " the sleet inductance moisture detection probe " of this module when upper, resistance value rising.In the time there is no the weather of rainwater or ice and snow, this detection numerical value is fixed value, in the time having a certain amount of rainwater or snow-broth to fall in detection probe, resistance value exceedes fixed value, module think that weather snows or rain, and sleet sky detection module is by the signal feedback gathering to master routine, and master routine is through single-chip microcomputer processing, signal is amplified, start variable autoluminescence display board.

In the time that winter, outdoor temperature was below zero degrees celsius, prevent from, because snow sky or sleet freeze inductance moisture detection probe, causing the illusion of always reporting to the police, can address the above problem by heating unit.Once, each startup ensures the inductance moisture detection probe being frozen by snow-broth to melt, and prevents false alarm in i.e. this heating unit startup per hour.

In sum, inclement weather Intelligent Measurement display system is at collection and feedback information through sleet sensor and visibility sensor, through the computing of single-chip microcomputer internal logic, intellectual analysis, signal amplification is transmitted to relay, and the intelligence that has realized LED alert display unit is switched, realize unattended, the features such as nobody detects in real time, and this system has accurately simple, and rate of false alarm is low.

The above; only for preferably embodiment of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with in technical scope that those skilled in the art disclose in the present invention; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.

Claims (10)

1. an inclement weather Intelligent Measurement display system, comprises center-control processing unit, intelligent detection unit and display unit, and center-control processing unit control intelligent detection unit and display unit, is characterized in that,
Described center-control processing unit comprises the first single-chip microcomputer, note control module and wireless transport module;
Described intelligent detection unit comprises second singlechip, information acquisition module, sleet intelligent identification module and greasy weather visibility detection module; Described second singlechip control information acquisition module, sleet intelligent identification module and greasy weather visibility detection module;
Described display unit comprises variable autoluminescence display board, and described variable autoluminescence display board is light emitting diode; Described variable autoluminescence display board can be according to presetting replacing displaying contents;
Described wireless transport module is processed the communication between intelligent detection unit and display unit;
Described note control module is crossed note by the information exchange of intelligent detection unit and display unit and is transferred to client;
Described information acquisition module is located at outdoor, described information acquisition module and is comprised sleet sensor and visibility sensor.
2. inclement weather Intelligent Measurement display system according to claim 1, is characterized in that, also comprise heating unit, described heating unit is located on information acquisition module.
3. inclement weather Intelligent Measurement display system according to claim 1, is characterized in that, described intelligent detection unit also comprises manual note control module, and client can require to implement involuntary conversion according to subjectivity.
4. inclement weather Intelligent Measurement display system according to claim 3, it is characterized in that, when described manual note control module is switched to manual mode, sending conversion command or client by note to client's mobile phone directly sends order with mobile phone at far-end and allows the displaying contents of display unit force variation, client is after sending involuntary conversion, client's note order is made as the first priority by described intelligent detection unit, described display unit preferentially shows customer command, shields automatic detection display content.
5. inclement weather Intelligent Measurement display system according to claim 1, is characterized in that, described variable autoluminescence display board is located at outdoor.
6. inclement weather Intelligent Measurement display system according to claim 1, it is characterized in that, described visibility sensor per minute detects once automatically to weather conditions, and report back second singlechip and the first single-chip microcomputer by the signal gathering, the first single-chip microcomputer and then judged result is passed to outernal display unit, outernal display unit shows corresponding result.
7. inclement weather Intelligent Measurement display system according to claim 1, is characterized in that, described sleet sensor is the inductance sleet moisture detection sensor with analog signals output.
8. inclement weather Intelligent Measurement display system according to claim 1, is characterized in that, also comprise SPU, described SPU is selected solar storage battery.
9. inclement weather Intelligent Measurement display system according to claim 1, is characterized in that, described wireless transport module adopts high-frequency signal, and transmission range can reach 300 meters farthest.
10. inclement weather Intelligent Measurement display system according to claim 1, is characterized in that, described information acquisition module is arranged on the fog section that takes place frequently, and uses wireless signal control.
CN201410334444.9A 2014-07-14 2014-07-14 Heavy weather intelligent detection displaying system CN104091459B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410334444.9A CN104091459B (en) 2014-07-14 2014-07-14 Heavy weather intelligent detection displaying system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410334444.9A CN104091459B (en) 2014-07-14 2014-07-14 Heavy weather intelligent detection displaying system

Publications (2)

Publication Number Publication Date
CN104091459A true CN104091459A (en) 2014-10-08
CN104091459B CN104091459B (en) 2017-01-11

Family

ID=51639172

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410334444.9A CN104091459B (en) 2014-07-14 2014-07-14 Heavy weather intelligent detection displaying system

Country Status (1)

Country Link
CN (1) CN104091459B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105336205A (en) * 2015-10-26 2016-02-17 苏州市职业大学 Road rainy-foggy day alarming system
CN107738650A (en) * 2017-09-26 2018-02-27 百度在线网络技术(北京)有限公司 Bad weather determination methods, device, terminal and storage medium
CN108364488A (en) * 2018-02-11 2018-08-03 西南交通大学 A kind of city haze traffic lights
CN109727471A (en) * 2019-02-12 2019-05-07 合肥极光科技股份有限公司 Intelligent monitor system under a kind of bad weather condition based on technology of Internet of things

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100084672A (en) * 2007-11-27 2010-07-27 모토로라 인코포레이티드 A wireless communication device and method
CN203399372U (en) * 2013-08-21 2014-01-15 温州大学 Solar energy LED street lamp controller for sensing weather
CN103529685A (en) * 2013-09-22 2014-01-22 天津大学 Multifunctional intelligent alarm clock based on travelling condition detection
CN203413523U (en) * 2013-08-20 2014-01-29 四川福瑞达光电有限公司 Novel solar LED street lamp system
CN203430271U (en) * 2013-08-08 2014-02-12 朱琳 Automatic opening and closing window

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202275513U (en) * 2011-09-20 2012-06-13 浙江大学城市学院 Wireless network speedway auxiliary induction system based on GPRS/CDMA
CN202925487U (en) * 2012-09-14 2013-05-08 中国科学院地理科学与资源研究所 Roadblock automatic set-up and information issuing device in road flood area
CN204331071U (en) * 2014-12-20 2015-05-13 福建四创软件有限公司 Realize the rainfall alarm of short message sending notice

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100084672A (en) * 2007-11-27 2010-07-27 모토로라 인코포레이티드 A wireless communication device and method
CN203430271U (en) * 2013-08-08 2014-02-12 朱琳 Automatic opening and closing window
CN203413523U (en) * 2013-08-20 2014-01-29 四川福瑞达光电有限公司 Novel solar LED street lamp system
CN203399372U (en) * 2013-08-21 2014-01-15 温州大学 Solar energy LED street lamp controller for sensing weather
CN103529685A (en) * 2013-09-22 2014-01-22 天津大学 Multifunctional intelligent alarm clock based on travelling condition detection

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105336205A (en) * 2015-10-26 2016-02-17 苏州市职业大学 Road rainy-foggy day alarming system
CN107738650A (en) * 2017-09-26 2018-02-27 百度在线网络技术(北京)有限公司 Bad weather determination methods, device, terminal and storage medium
CN107738650B (en) * 2017-09-26 2019-09-10 百度在线网络技术(北京)有限公司 Bad weather judgment method, device, terminal and storage medium
CN108364488A (en) * 2018-02-11 2018-08-03 西南交通大学 A kind of city haze traffic lights
CN109727471A (en) * 2019-02-12 2019-05-07 合肥极光科技股份有限公司 Intelligent monitor system under a kind of bad weather condition based on technology of Internet of things

Also Published As

Publication number Publication date
CN104091459B (en) 2017-01-11

Similar Documents

Publication Publication Date Title
CN205158638U (en) Traffic light control system
CN105374215B (en) A kind of highway trackside prior-warning device
CN103895564B (en) Car light distance-light automatic exchanger and method thereof during nighttime meeting
CN102421219B (en) Streetlight network control method and network structure thereof
CN202771638U (en) Vehicle safety driving early warning system in fog area
CN103594002A (en) Vehicle safety protection system
CN101639987B (en) Wireless alarm system for mass preventing secondary accidents of freeway tunnel
CN103500508B (en) A kind of intelligent transportation system
CN104278648A (en) Solar intelligent zebra crossing device
CN102568226B (en) High speed variable speed limit control method based on adverse weather conditions
CN102842240A (en) Early warning system for safety traffic of vehicle in fog region and safety traffic guidance method based on early warning system
CN103500519A (en) Fog region driving safety intelligent guiding system and method
CN201901853U (en) Intelligent highway deceleration system
CN101694748A (en) Real-time system for monitoring and pre-warning mist on highway
CN101986367B (en) Wireless early warning method of vehicle traffic accidents
CN102264169B (en) There is the induction road lamp system of distinguishing pedestrian and vehicle heading function
CN101777268B (en) Guide type highway anti-fogging system
CN203630974U (en) Mobile solar and wind energy signal lamp
CN203659213U (en) Intersection safety prompting system
CN203616883U (en) Highway traffic accident active prevention and control system
CN202523224U (en) Warning device for crossing event at sharp turn section of highway and ramp of freeway
CN203530872U (en) Novel traffic sign and traffic warning system
CN105913662A (en) Intelligent highway mist zone guiding system
CN202268076U (en) Traffic crossing induction alarm device capable of early warning in advance
CN202904888U (en) Road icing early warning system

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
DD01 Delivery of document by public notice

Addressee: SHENYANG YIFEIDA TRAFFIC FACILITIES CO., LTD.

Document name: Notification to Go Through Formalities of Registration

Addressee: SHENYANG YIFEIDA TRAFFIC FACILITIES CO., LTD.

Document name: Notification to Go Through Formalities of Registration

GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170111

Termination date: 20190714

CF01 Termination of patent right due to non-payment of annual fee