CN105608928A - Expressway collision warning system based on WiFi - Google Patents
Expressway collision warning system based on WiFi Download PDFInfo
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- CN105608928A CN105608928A CN201610175115.3A CN201610175115A CN105608928A CN 105608928 A CN105608928 A CN 105608928A CN 201610175115 A CN201610175115 A CN 201610175115A CN 105608928 A CN105608928 A CN 105608928A
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/16—Anti-collision systems
Abstract
The invention discloses an expressway collision warning system based on WiFi. The system comprises a smart phone and a plurality of shells, wherein the shells are arranged on an expressway; a monitoring node is arranged in each shell; each monitoring node is provided with a WiFi module, a sound-light alarm module, a human-computer interface module, a network module and a controller module, wherein the WiFi module is connected with the smart phone, and the network module is connected with the Internet. According to the system, vehicle-mounted equipment does not need to be installed in a vehicle, and only warning software is installed in the smart phone of a passenger, so the system is convenient to use; the monitoring nodes can receive warning information sent by the smart phone, send the warning information to a monitoring center via the Internet and send alarm information to rear vehicles according to the control command of the monitoring center by using sound-light alarm, so the system is quick in construction; and the system is not influenced by environmental factors such as haze, and is stable and reliable in operation.
Description
Technical field
The present invention relates to the crashproof early warning system of highway, the specifically crashproof early warning of the highway based on WiFi systemSystem.
Background technology
Along with China's freeway traffic flow amount rapid growth, traffic accident takes place frequently. In all kinds of traffic accidents, rear-end impactIt is a more class accident. Rear-end impact is that corresponding arranging do not found and taked to rear car in time in the time that front truck deceleration is particularly stoppedExecute the collision accident remaining a safe distance behind the car in front and cause. If while stopping in emergency, can remind in time rear car driver in certain distanceAdjust in time vehicle running state, take safety measures, can reduce the generation of rear-end impact traffic accident.
At present, more extensive to vehicle anti-collision early warning system research both at home and abroad, but mainly concentrate on vehicle-mounted anti-collision early warning beSystem research and development. Vehicle-mounted anti-collision early warning system mainly adopts radar and machine vision and the rear-end collision based on image recognition crashproof pre-Alarm system. Because China's highway extends in all direction, and various places Economic Development Status is unbalanced, install or configuration to various vehiclesVehicle-mounted anti-collision early warning system terminal operability is little.
Summary of the invention
For addressing the above problem, the object of the invention is to overcome the deficiencies in the prior art, provide a kind of utilization to drive peopleThe crashproof early warning system of the highway based on WiFi that the smart mobile phone that member generally has and freeway surveillance and control node build.
The present invention for achieving the above object, is achieved through the following technical solutions: the crashproof early warning of highway based on WiFiSystem, comprises smart mobile phone and several housing, and housing is arranged on highway, and monitor node is set in housing, each monitoringNode has WiFi module, sound and light alarm module, human-machine interface module, mixed-media network modules mixed-media and controller module, and controller module respectivelyInterconnect with WiFi module, sound and light alarm module, human-machine interface module and mixed-media network modules mixed-media, WiFi module and smart mobile phone are mutualConnect, mixed-media network modules mixed-media and internet interconnect.
For further realizing object of the present invention, can also be by the following technical solutions: described housing sidepiece is installed solidDetermine plate, vertical chute is set on fixed head, be equipped with the first slide bar and the second slide bar in chute, the first slide bar connects firstOne end of connecting plate, the hinged flap of the other end of the first connecting plate, offers stopper slot on flap, and stopper slot and chute are mutually flatOK, the second slide bar connects one end of the second connecting plate, and the other end of the second connecting plate arranges screw rod, and screw rod is positioned at stopper slot,On screw rod, be equipped with nut, nut and the second connecting plate lay respectively at flap both sides, and the diameter of nut is greater than the wide of stopper slotDegree; Described chute both sides arrange gathering sill, and guide pad is all installed, guide pad and gathering sill in the first slide bar and the second slide bar both sidesMatch, the both sides at the upper and lower two ends of fixed head all arrange limited block; Described housing outer wall applies fire proof heat-insulation layer, fire-proof and thermal-insulationLayer is made up of a kind of fire-proof heat-insulating material, and a kind of fire-proof heat-insulating material, in weight portion, is made up of following raw material: phenolic resins30 ~ 40 parts of foaming bodies, 20 ~ 30 parts of cement, 5 ~ 10 parts of land plasters, 10 ~ 15 parts of pentaerythrites, 1 ~ 5 part of talcum powder, detergent alkylate1 ~ 5 part of sodium sulfonate, 10 ~ 15 parts of magnesium hydroxides, 5 ~ 10 parts, flyash, 90 ~ 100 parts, 3 ~ 8 parts of xylene monosulfonic acids and water;
Described phenol resin foam is prepared by following steps:
3,5-xylenols and base catalyst are mixed, be warming up to 100 ~ 110 DEG C, back flow reaction 20 ~ 40 minutes, obtainsMixed liquor; The mass ratio of 3,5-xylenols and base catalyst is 100:5 ~ 10;
To stepIn gained mixed liquor, drip furfural, dropwise and continue back flow reaction 2 ~ 3 hours at 100 ~ 110 DEG C,Obtain phenolic resins; Described 3, the mass ratio of 5-xylenols and furfural is 100:120 ~ 150;
In weight portion, by step5 ~ 10 parts of 90 ~ 100 parts, gained phenolic resins and blowing agents are uniformly mixed, and obtainPhenol resin foam; Described blowing agent is pentane or n-hexane.
The invention has the advantages that: the present invention need to not install mobile unit on automobile, only need to be in automobile passenger intelligenceCan on mobile phone, early warning software be installed, easy to use; Monitor node can receive the early warning that smart mobile phone sends by WiFiInformation, can send to Surveillance center by internet by early warning information again, can also utilize sound according to Surveillance center's control commandLight is reported to the police and is sent warning message to rear car, and system constructing is rapid; This system is not subject to the such environmental effects such as greasy weather low visibility, workDo reliable and stable.
Brief description of the drawings
Fig. 1 is block diagram of the present invention; Fig. 2 is structural representation of the present invention; Fig. 3 is the I portion enlarged drawing of Fig. 2.
Reference numeral: 1 housing 2 first connecting plate 3 second connecting plate 4 fixed head 5 first slide bar 6 chutes 7 leadGroove 8 guide pad 9 limited block 10 flap 11 screw rod 12 stopper slot 13 nut 14 second slide bar 15 fire proof heat-insulation layers.
Detailed description of the invention
The crashproof early warning system of highway based on WiFi, comprises smart mobile phone and several housing 1, and housing 1 is arranged on heightOn speed highway, the interior monitor node that arranges of housing 1, each monitor node has WiFi module, sound and light alarm module, man-machine interface mouldPiece, mixed-media network modules mixed-media and controller module, controller module respectively with WiFi module, sound and light alarm module, human-machine interface module andMixed-media network modules mixed-media interconnects, and WiFi module and smart mobile phone interconnect, and mixed-media network modules mixed-media and internet interconnect. Described WiFiModule is for receiving the early warning information that smart mobile phone sends; Described sound and light alarm module is used for rearward vehicle and sends alarm signalNumber; Described human-machine interface module arranges for monitor node parameter; Described mixed-media network modules mixed-media is for the crashproof early warning system of highwayNetworking. Described smart mobile phone is carried by the driver and crew of highway driving vehicle, and early warning software is installed on smart mobile phone, needsWhile stopping in emergency, automobile driver and crew utilize nearest monitor node on smart mobile phone search highway, set up WiFi and connectAfter, utilize early warning software to send early warning information to monitor node. Described monitor node is uploaded height by early warning information by internetSpeed highway monitoring center; Surveillance center carries out being shown to Surveillance center interface after analyzing and processing to early warning information, and further willWarning message is sent to the monitor node of the default nodes of rear view of vehicle, and rear monitor node is far and near according to distance, utilizes acousto-opticWarning device reminds rear car to adjust in time vehicle running state, takes safety measures and avoids rear-end impact accident to occur. Monitoring jointPoint is transmitting early warning information simultaneously, keeps liaison with smart mobile phone, in the time that vehicle sails out of " focus " equipment, removes in time pre-Alert. This structure need to not installed mobile unit on automobile, only early warning software need to be installed on automobile passenger smart mobile phone, easy to use; Monitor node can receive the early warning information that smart mobile phone sends by WiFi, again can early warning information is logicalCross internet and send to Surveillance center, can also utilize sound and light alarm to send alarm signal to rear car according to Surveillance center's control commandBreath, system constructing is rapid; This system is not subject to the such environmental effects such as greasy weather low visibility, and working stability is reliable. Adjacent monitoringDistance between node is 300 meters. Default nodes is 5, i.e. 5 of rear view of vehicle monitor nodes are far and near according to distance, pointDo not utilize acoustic-optic alarm to remind rear car to adjust in time vehicle running state, take safety measures and avoid rear-end impact accident to send outRaw. Housing 1 can be protected the modules in monitor node.
Described housing 1 sidepiece mounting plate 4, arranges vertical chute 6 on fixed head 4, be equipped with in chute 6One slide bar 5 and the second slide bar 14, the first slide bars 5 connect one end of the first connecting plate 2, the hinged folding of the other end of the first connecting plate 2Plate 10, offers stopper slot 12 on flap 10, stopper slot 12 is parallel to each other with chute 6, and the second slide bar 14 connects the second connecting plate 3One end, the other end of the second connecting plate 3 arranges screw rod 11, and screw rod 11 is positioned at stopper slot 12, on screw rod 11, is equipped with nut14, nut 14 and the second connecting plate 3 lay respectively at flap 10 both sides, and the diameter of nut 14 is greater than the width of stopper slot 12. ThisStructure can surround the isolated column on highway by the first connecting plate 2, fixed head 4, the second connecting plate 3 and flap 10, fromAnd monitor node is fixed on highway. By rotating nut 14, can make flap 10 be connected with the second connecting plate 3, theDistance between two connecting plates 3 and the first connecting plate 2, can be by regulating the distance between the first slide bar 5 and the second slide bar 14Regulate, and then by rotating nut 14, housing 1 is fixed on the isolated column on highway.
Gathering sill 7, the first slide bars 5 are set in described chute 6 both sides and guide pad 8 is all installed in the second slide bar 14 both sides, leadMatch with gathering sill 7 to piece 8, the both sides at fixed head two ends Shang Xia 4 all arrange limited block 9. This structure can avoid firstSlide bar 5 and the second slide bar 14 depart from chute 6, and are that spacing leading played in the first slide bar 5 and the second slip of slide bar 14 in chute 6To effect.
Described housing 1 outer wall applies fire proof heat-insulation layer 15, and fire proof heat-insulation layer 15 is made up of a kind of fire-proof heat-insulating material, and onePlant fire-proof heat-insulating material, in weight portion, formed by following raw material: 30 ~ 40 parts of phenol resin foams, 20 ~ 30 parts of cement, stone5 ~ 10 parts, cream powder, 10 ~ 15 parts of pentaerythrites, 1 ~ 5 part of talcum powder, 1 ~ 5 part of neopelex, 10 ~ 15 parts of magnesium hydroxides,5 ~ 10 parts, flyash, 90 ~ 100 parts, 3 ~ 8 parts of xylene monosulfonic acids and water;
Described phenol resin foam is prepared by following steps:
3,5-xylenols and base catalyst are mixed, be warming up to 100 ~ 110 DEG C, back flow reaction 20 ~ 40 minutes, obtainsMixed liquor; The mass ratio of 3,5-xylenols and base catalyst is 100:5 ~ 10;
To stepIn gained mixed liquor, drip furfural, dropwise and continue back flow reaction 2 ~ 3 hours at 100 ~ 110 DEG C,Obtain phenolic resins; Described 3, the mass ratio of 5-xylenols and furfural is 100:120 ~ 150;
In weight portion, by step5 ~ 10 parts of 90 ~ 100 parts, gained phenolic resins and blowing agents are uniformly mixed, and obtainPhenol resin foam; Described blowing agent is pentane or n-hexane. This fire-proof heat-insulating material adopts Foaming of phenolic resin to addAdd appropriate cement based gel rubber material and external feeding and be mixed with gained, this fire-proof heat-insulating material is that porous light is high performance anti-Fire screen hot material, had both had advantages of the difficult combustion of phenolic resins, low cigarette and high temperature resistance distortion, had again higher refractory temperature, itsRefractory temperature can arrive more than 1100 DEG C, and combustibility is A1 level, belongs to incombustible material, and fire safety performance is superior; This fire preventionThe rate of closed hole of heat-barrier material is greater than 99%, and high rate of closed hole significantly reduces cross-ventilation heat transfer, thereby has excellent insulationPerformance, can prevent the modules because of heat and fire damage housing 1 inside; This preparation process easily operates, rightRequiring of equipment is low, is easy to realize, and can realize industrial production.
Below in conjunction with specific embodiment, fire-proof heat-insulating material of the present invention is further described.
Embodiment 1
A kind of fire-proof heat-insulating material, in weight portion, is made up of following raw material: phenol resin foam 30kg, cement 20kg, stoneCream powder 5kg, pentaerythrite 10kg, talcum powder 1kg, neopelex 1kg, magnesium hydroxide 10kg, flyash 5kg, twoToluenesulfonic acid 3kg and water 90kg;
Described phenol resin foam is prepared by following steps:100kg urges 3,5-xylenols and 5kg alkalescenceAgent is mixed, and is warming up to 100 DEG C, and back flow reaction 20 minutes, obtains mixed liquor;To stepIn gained mixed liquor, drip120kg furfural, dropwises and continues back flow reaction 2 hours at 100 DEG C, obtains phenolic resins;In weight portion, by stepGained phenolic resins 90kg and blowing agent pentane 5kg are uniformly mixed, and obtain phenol resin foam.
Embodiment 2
A kind of fire-proof heat-insulating material, in weight portion, is made up of following raw material: phenol resin foam 40kg, cement 30kg, stoneCream powder 10kg, pentaerythrite 15kg, talcum powder 5kg, neopelex 5kg, magnesium hydroxide 15kg, flyash 10kg,Xylene monosulfonic acid 8kg and water 100kg;
Described phenol resin foam is prepared by following steps:By 100kg3,5-xylenols and base catalystMix, be warming up to 110 DEG C, back flow reaction 40 minutes, obtains mixed liquor;To stepIn gained mixed liquor, drip 150kg chaffAldehyde, dropwises and continues back flow reaction 3 hours at 110 DEG C, obtains phenolic resins;In weight portion, by stepGainedPhenolic resins 100kg and blowing agent 10kg are uniformly mixed, and obtain phenol resin foam; Described blowing agent is n-hexane.
Embodiment 3
A kind of fire-proof heat-insulating material, in weight portion, is made up of following raw material: phenol resin foam 34kg, cement 22kg, stoneCream powder 8kg, pentaerythrite 13kg, talcum powder 4kg, neopelex 3kg, magnesium hydroxide 12kg, flyash 6kg, twoToluenesulfonic acid 7kg and water 92kg;
Described phenol resin foam is prepared by following steps:By 100kg3,5-xylenols and 7kg alkalescence are urgedAgent potassium hydroxide mixes, and is warming up to 102 DEG C, and back flow reaction 25 minutes, obtains mixed liquor;To stepIn gained mixed liquorDrip 125kg furfural, dropwise and continue at 105 DEG C back flow reaction 2.5 hours, obtain phenolic resins;In weight portion,By stepGained phenolic resins 98kg and blowing agent 8kg are uniformly mixed, and obtain phenol resin foam; Described blowing agentFor pentane.
Embodiment 4
A kind of fire-proof heat-insulating material, in weight portion, is made up of following raw material: phenol resin foam 35kg, cement 25kg, stoneCream powder 8kg, pentaerythrite 12kg, talcum powder 4kg, neopelex 4kg, magnesium hydroxide 14kg, flyash 8kg, twoToluenesulfonic acid 6kg and water 95kg;
Described phenol resin foam is prepared by following steps:By 100kg3,5-xylenols and 8kg hydroxideSodium mixes, and is warming up to 105 DEG C, and back flow reaction 30 minutes, obtains mixed liquor;To stepIn gained mixed liquor, drip 140kgFurfural, dropwises and continues back flow reaction 2.5 hours at 105 DEG C, obtains phenolic resins;In weight portion, by stepGained phenolic resins 95kg and blowing agent 8kg are uniformly mixed, and obtain phenol resin foam; Described blowing agent is positive pentaAlkane.
Embodiment 5
The preparation method of the fire-proof heat-insulating material described in embodiment 1, comprises the following steps:
100kg mixes 3,5-xylenols and 5kg base catalyst, is warming up to 100 DEG C, and back flow reaction 20 minutes, obtainsMixed liquor;
To stepIn gained mixed liquor, drip 120kg furfural, dropwise and continue back flow reaction 2 hours at 100 DEG C,Obtain phenolic resins;
In weight portion, by stepGained phenolic resins 90kg and blowing agent pentane 5kg are uniformly mixed, and obtainPhenol resin foam;
In weight portion, by cement 20kg, land plaster 5kg, pentaerythrite 10kg, talcum powder 1kg, DBSASodium 1kg, magnesium hydroxide 10kg, flyash 5kg and water 90kg mix, and obtain compound;
By stepGained phenol resin foam 30kg,, xylene monosulfonic acid 3kg stirs and evenly mixs, and under agitation adds stepGained compound, mixes post-foaming moulding, and natural air drying cuts into specification shape, obtains fire-proof heat-insulating material.
Embodiment 6
The preparation method of the fire-proof heat-insulating material described in embodiment 2, comprises the following steps:
By 100kg3,5-xylenols and base catalyst mix, and are warming up to 110 DEG C, and back flow reaction 40 minutes, is mixedClose liquid;
To stepIn gained mixed liquor, drip 150kg furfural, dropwise and continue back flow reaction 3 hours at 110 DEG C,Obtain phenolic resins;
In weight portion, by stepGained phenolic resins 100kg and blowing agent 10kg are uniformly mixed, and obtain phenolic aldehydeFoamed resin; Described blowing agent is n-hexane;
In weight portion, by cement 30kg, land plaster 10kg, pentaerythrite 15kg, talcum powder 5kg, DBSASodium 5kg, magnesium hydroxide 15kg, flyash 10kg and water 100kg mix, and obtain compound;
By stepGained phenol resin foam 40kg, xylene monosulfonic acid 8kg stirs and evenly mixs, and under agitation adds stepGained compound, mixes post-foaming moulding, and natural air drying cuts into specification shape, obtains fire-proof heat-insulating material.
Embodiment 7
The preparation method of the fire-proof heat-insulating material described in embodiment 3, comprises the following steps:
By 100kg3,5-xylenols and 7kg base catalyst potassium hydroxide mix, and are warming up to 102 DEG C, back flow reaction 25Minute, obtain mixed liquor;
To stepIn gained mixed liquor, drip 125kg furfural, dropwise continuation back flow reaction 2.5 at 105 DEG C littleTime, obtain phenolic resins;
In weight portion, by stepGained phenolic resins 98kg and blowing agent 8kg are uniformly mixed, and obtain phenolic aldehyde treeFat foaming body; Described blowing agent is pentane;
In weight portion, by cement 22kg, land plaster 8kg, pentaerythrite 13kg, talcum powder 4kg, DBSASodium 3kg, magnesium hydroxide 12kg, flyash 6kg, xylene monosulfonic acid and water 92kg mix, and obtain compound;
By stepGained phenol resin foam 34kg, xylene monosulfonic acid 7kg stirs and evenly mixs, and under agitation adds stepGained compound, mixes post-foaming moulding, and natural air drying cuts into specification shape, obtains fire-proof heat-insulating material.
Embodiment 8
The preparation method of the fire-proof heat-insulating material described in embodiment 4, comprises the following steps:
By 100kg3,5-xylenols and 8kg NaOH mix, and are warming up to 105 DEG C, and back flow reaction 30 minutes, is mixedClose liquid;
To stepIn gained mixed liquor, drip 140kg furfural, dropwise continuation back flow reaction 2.5 at 105 DEG C littleTime, obtain phenolic resins;
In weight portion, by stepGained phenolic resins 95kg and blowing agent 8kg are uniformly mixed, and obtain phenolic aldehyde treeFat foaming body; Described blowing agent is pentane;
In weight portion, by cement 25kg, land plaster 8kg, pentaerythrite 12kg, talcum powder 4kg, DBSASodium 4kg, magnesium hydroxide 14kg, flyash 8kg and water 95kg mix, and obtain compound;
By step35 parts of gained phenol resin foams, xylene monosulfonic acid 6kg stirs and evenly mixs, and under agitation adds stepGained compound, mixes post-foaming moulding, and natural air drying cuts into specification shape, obtains fire-proof heat-insulating material.
Technical scheme of the present invention is not restricted in the scope of embodiment of the present invention. The not detailed description of the present inventionTechnology contents be known technology.
Claims (4)
1. the crashproof early warning system of the highway based on WiFi, is characterized in that: comprise smart mobile phone and several housing (1), shellBody (1) is arranged on highway, and housing arranges monitor node in (1), and each monitor node has WiFi module, sound and light alarm mouldPiece, human-machine interface module, mixed-media network modules mixed-media and controller module, controller module respectively with WiFi module, sound and light alarm module, peopleMachine interface module and mixed-media network modules mixed-media interconnect, and WiFi module and smart mobile phone interconnect, and mixed-media network modules mixed-media and internet are mutualConnect.
2. the crashproof early warning system of the highway based on WiFi according to claim 1, is characterized in that: described housing(1) sidepiece mounting plate (4), arranges vertical chute (6) on fixed head (4), chute is equipped with the first slide bar in (6)(5) and the second slide bar (14), the first slide bar (5) connects one end of the first connecting plate (2), the other end hinge of the first connecting plate (2)Connect flap (10), offer stopper slot (12) on flap (10), stopper slot (12) is parallel to each other with chute (6), the second slide bar (14)Connect one end of the second connecting plate (3), the other end of the second connecting plate (3) arranges screw rod (11), and screw rod (11) is positioned at stopper slot(12) in, be equipped with nut (14) on screw rod (11), nut (14) and the second connecting plate (3) lay respectively at flap (10) twoSide, the diameter of nut (14) is greater than the width of stopper slot (12).
3. the crashproof early warning system of the highway based on WiFi according to claim 2, is characterized in that: described chute(6) both sides arrange gathering sill (7), and guide pad (8) is all installed in the first slide bar (5) and the second slide bar (14) both sides, guide pad (8) withGathering sill (7) matches, and the both sides at the upper and lower two ends of fixed head (4) all arrange limited block (9).
4. the crashproof early warning system of the highway based on WiFi according to claim 1, is characterized in that: described housing(1) outer wall applies fire proof heat-insulation layer (15), and fire proof heat-insulation layer (15) is made up of a kind of fire-proof heat-insulating material, a kind of fire-proof and thermal-insulation materialMaterial, in weight portion, is made up of following raw material: 30 ~ 40 parts of phenol resin foams, 20 ~ 30 parts of cement, 5 ~ 10 parts of land plasters, seasonPenta 10 ~ 15 parts of tetrols, 1 ~ 5 part of talcum powder, 1 ~ 5 part of neopelex, 10 ~ 15 parts of magnesium hydroxides, 5 ~ 10 parts, flyash,90 ~ 100 parts, 3 ~ 8 parts of xylene monosulfonic acids and water;
Described phenol resin foam is prepared by following steps:
3,5-xylenols and base catalyst are mixed, be warming up to 100 ~ 110 DEG C, back flow reaction 20 ~ 40 minutes, is mixedClose liquid; The mass ratio of 3,5-xylenols and base catalyst is 100:5 ~ 10;
To stepIn gained mixed liquor, drip furfural, dropwise and continue back flow reaction 2 ~ 3 hours at 100 ~ 110 DEG C,Obtain phenolic resins; Described 3, the mass ratio of 5-xylenols and furfural is 100:120 ~ 150;
In weight portion, by step5 ~ 10 parts of 90 ~ 100 parts, gained phenolic resins and blowing agents are uniformly mixed, and obtainPhenol resin foam; Described blowing agent is pentane or n-hexane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610175115.3A CN105608928B (en) | 2016-03-25 | 2016-03-25 | Highway anticollision early warning system based on WiFi |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610175115.3A CN105608928B (en) | 2016-03-25 | 2016-03-25 | Highway anticollision early warning system based on WiFi |
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| CN105608928A true CN105608928A (en) | 2016-05-25 |
| CN105608928B CN105608928B (en) | 2018-03-09 |
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| CN202795762U (en) * | 2012-03-06 | 2013-03-13 | 宋怀淳 | Highway vehicular card rear-collision-preventing traffic-jam-preventing system |
| US20140015973A1 (en) * | 2012-07-11 | 2014-01-16 | Google Inc. | Vehicle and Mobile Device Traffic Hazard Warning Techniques |
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| CN205486860U (en) * | 2016-03-25 | 2016-08-17 | 山东交通学院 | Highway anticollision early -warning system based on wiFi |
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2016
- 2016-03-25 CN CN201610175115.3A patent/CN105608928B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102272809A (en) * | 2009-04-07 | 2011-12-07 | 三菱电机株式会社 | Vehicle-mounted narrow-band wireless communication apparatus and roadside-to-vehicle narrow-band wireless communication system |
| CN101727757A (en) * | 2009-12-15 | 2010-06-09 | 浙江工业大学 | Vehicle active collision avoidance system based on VII support |
| CN201716871U (en) * | 2010-07-15 | 2011-01-19 | 交通运输部公路科学研究所 | Vehicle-road communication system with safety early-warning function |
| US20140211803A1 (en) * | 2010-11-03 | 2014-07-31 | Broadcom Corporation | Bridge routing module |
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