CN102622892A - Automatic fog condition detection and alarm system and method for expressway - Google Patents
Automatic fog condition detection and alarm system and method for expressway Download PDFInfo
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- CN102622892A CN102622892A CN2012100955460A CN201210095546A CN102622892A CN 102622892 A CN102622892 A CN 102622892A CN 2012100955460 A CN2012100955460 A CN 2012100955460A CN 201210095546 A CN201210095546 A CN 201210095546A CN 102622892 A CN102622892 A CN 102622892A
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Abstract
The invention discloses an automatic fog condition detection and alarm system for an expressway. The system consists of detection equipment and control equipment, wherein the detection equipment automatically detects fog condition information by transmitting/receiving code modulated infrared light and controls a light emitting diode (LED) alarm module to give an alarm signal; and the detection equipment detects the fog condition and simultaneously has a temperature and humidity information detection function; the system interconnection in the system is realized by a ZigBee wireless communication network; a large-range fog situation and small-range fog can be detected effectively, moreover, complex network layout is not required, and the structure is simple; the system communicates with the external by adopting general packet radio service (GPRS) or an Ethernet, so that a traffic management department can master the fog condition information and the temperature and humidity information of the expressway in time conveniently; and power consumption of the system is reduced to the maximum extent by adopting low-power consumption devices and a method of detecting periodically and sleeping at the rest of time. The system can be widely used for automatically detecting the fog condition of the expressway in real time, prewarning traffic safety, and guiding vehicles to pass safely.
Description
Technical field
The invention belongs to the automatic detection range of highway, the automatic detection alarm system and method for particularly a kind of highway mist condition.
Background technology
The highway operational management experience of countries in the world shows; In all unfavorable meteorological conditions; Greasy weather is maximum to the harm that highway operation is produced because dense fog causes traffic hazard easily, though and the closing high-speed highway can effectively try to forestall traffic accidents; But the traffic capacity to sacrifice highway is a cost, and economic loss is big.Existing weather monitoring means can be forecast the generation of mist on a large scale, but for the forecast and the early warning of the little meteorological condition of this regional burst of a mist, still can't real-time implementation.Vehicle is difficult to obtain in advance early warning when highway goes, often cause its territory, group of sailing into fog-zone to have little time to slow down, and visibility reduces suddenly, and is unsighted, causes traffic hazard.
At present disclosed method has, local visibility monitoring equipment, based on the visibility monitoring equipment of video, based on the thick fog safe passing system of infrared induction.Its measurements of local visibility monitoring equipment is taken a sample with less relatively space sample, and the regional visibility of inverting is difficult to reflect the real conditions of long distance areas visibility, particularly this local Microclimate Characteristics of the group's of monitoring mist in real time; Visibility monitoring equipment based on video utilizes the scenery readability of video camera shooting to judge visibility, and it is bigger that measuring accuracy is influenced by video imaging quality and video processnig algorithms; Scheme based on infrared induction is provided with infrared induction sign the infrared detection image system and realizes through arranging in the highway both sides on vehicle, it is big to implement difficulty, is difficult to promote the use of.
Summary of the invention
The technical matters that the present invention solved is to provide a kind of detection effect automatic detection alarm of highway mist condition system preferably; Can real time automatic detection mist condition; Provide early warning signal, and through wireless networking monitoring mist feelings scope, for traffic administration provides decision-making foundation.
The technical solution that realizes the object of the invention is: the automatic detection alarm of a kind of highway mist condition system; Comprise detecting devices and opertaing device; It is along the line that above-mentioned detecting devices and opertaing device all are arranged on highway; Said detecting devices is connected with opertaing device, is its control signal that provides highway mist condition information and receiving control apparatus to send.
A kind of control method based on the automatic detection alarm of above-mentioned highway mist condition system may further comprise the steps:
Step 1, the detecting devices regularly IR of launching code modulation are given adjacent detecting devices; First infrared receiving terminal of adjacent detecting devices judges whether to exist the mist condition according to the situation that receives IR; If have the mist condition then execution in step 2, otherwise execution in step 5;
Step 5, adjacent detecting devices detect the humiture of surrounding environment, and the mist condition result and the humiture result that detect are transferred to opertaing device through the ZigBee interface, and are transferred to vehicle supervision department by opertaing device through GPRS interface or Ethernet interface.
The present invention compared with prior art, its remarkable advantage is: 1) system can real time automatic detection mist condition, and provides alerting signal, automaticity is high; 2) system has the humiture measuring ability, can when detecting the mist condition, detect the humiture situation, depicts both relations; 3) system adopts the ZigBee radio network technique, can effectively detect on a large scale the mist feelings and roll into a ball mist among a small circle, and not need the network layout of complicacy, and is simple in structure; 4) system adopts GPRS or ethernet communication, is convenient to vehicle supervision department and in time grasps highway mist condition information; 5) only when regularly detecting, wake detecting devices up, low in energy consumption; 6) anti-interference effect is better.
Below in conjunction with accompanying drawing the present invention is described in further detail.
Description of drawings
Fig. 1 is that system of the present invention forms and the principle of work synoptic diagram.
Fig. 2 is that detecting devices of the present invention is formed synoptic diagram.
Fig. 3 is that opertaing device of the present invention is formed synoptic diagram.
Fig. 4 is that flush bonding processor core cell of the present invention is formed synoptic diagram.
Fig. 5 is a workflow synoptic diagram of the present invention.
Embodiment
In conjunction with Fig. 1; The automatic detection alarm of a kind of highway mist condition of the present invention system; Comprise detecting devices 1 and opertaing device 2; It is along the line that above-mentioned detecting devices 1 and opertaing device 2 all are arranged on highway, and said detecting devices 1 is connected with opertaing device 2, is its control signal that provides highway mist condition information and receiving control apparatus to send.Wireless connections between detecting devices 1 and the opertaing device 2.
In conjunction with Fig. 2, detecting devices 1 comprises flush bonding processor nucleus module 8, light source emitting module 9, light source receiver module 10, ZigBee wireless communication interface 11, LED alarm module 12 and humiture detection module 13;
Wherein light source emitting module 9 is connected with flush bonding processor nucleus module 8; The infrared light of emission modulation under the control of flush bonding processor nucleus module 8; Light source receiver module 10 is connected with flush bonding processor nucleus module 8, and the infrared receiving terminal quantity that light source receiver module 10 inside are contained is more than or equal to 1, and it gives flush bonding processor nucleus module 8 with the optical signal transmission that receives; ZigBee wireless communication interface 11 is connected with flush bonding processor nucleus module 8; Transmitting/receiving wireless signal under the control of flush bonding processor nucleus module 8, LED alarm module 12 is connected with flush bonding processor nucleus module 8, under the control of flush bonding processor nucleus module 8, reports to the police; Humiture detection module 13 is connected with flush bonding processor nucleus module 8, gives flush bonding processor nucleus module 8 with detected humiture information transmission.
In conjunction with Fig. 3; Opertaing device 2 comprises flush bonding processor core cell 21, ZigBee Wireless communication interface module 22, GPRS interface 23 and Ethernet interface 24; Said ZigBee Wireless communication interface module 22 is connected with flush bonding processor core cell 21; Transmitting/receiving wireless signal under the control of flush bonding processor core cell 21, GPRS interface 23, Ethernet interface 24 all are connected with flush bonding processor core cell 21, for it provides communication interface.
In conjunction with Fig. 4; Said flush bonding processor nucleus module 8 comprises flush bonding processor, power module, reset circuit module, clock module and debugging interface module, and said power module, clock module, reset circuit module and debugging interface module all are connected with flush bonding processor.Power module is that flush bonding processor provides working power; Clock module is that flush bonding processor provides clock signal; The reset circuit module is used for when flush bonding processor work is broken down, providing reset signal, debugging interface module to be used for application program is downloaded to flush bonding processor and the inner working condition of observation when flush bonding processor is worked.
Flush bonding processor core cell 21 comprises flush bonding processor, power module, reset circuit module, clock module and debugging interface module, and said power module, clock module, reset circuit module and debugging interface module all are connected with flush bonding processor.Power module is that flush bonding processor provides working power; Clock module is that flush bonding processor provides clock signal; The reset circuit module is used for when flush bonding processor work is broken down, providing reset signal, debugging interface module to be used for application program is downloaded to flush bonding processor and the inner working condition of observation when flush bonding processor is worked.
Above-mentioned flush bonding processor nucleus module 8 is similar with flush bonding processor core cell 21 inner structures, and difference is merely the model of flush bonding processor.
The automatic detection alarm of highway mist condition system is made up of detecting devices 1 and opertaing device 2, and it is along the line to be installed in highway between the two at a certain distance, through the wireless mode composition system that networks.Each detecting devices 1 possesses independently that infrared light supply transmits and receives module, and equipment also has the humiture measuring ability simultaneously.Light source emitting module 9 is launched the infrared coding train of impulses with certain significance continuously, and simultaneously, the light source receiver module 10 in the adjacent detecting devices (not being the detecting devices at transmitter module place) receives these train of impulses.Light source receiver module 10 is through a series of judgements to coded pulse signal, and whether final affirmation exists the mist feelings.If through confirming the mist feelings do not take place, then LED alarm module 12 does not produce action; If confirm to detect the mist feelings, this detecting devices is controlled the LED alarm lamp automatically and is glimmered with certain frequency, gives vehicle on highway with early warning signal.Simultaneously, detecting devices 1 regularly sends to opertaing device with mist condition information and humiture information with ZigBee wireless network transmissions mode.Opertaing device 2 is responsible for collecting detecting devices 1 detected mist condition and the humiture information in the certain area coverage, and with the synthetic information frame of these data sets, regularly reports vehicle supervision department 4 through GPRS interface 23 or Ethernet interface 24.Vehicle supervision department 4 orients mist condition and humiture information on each geographic position through obtaining the information in the frame.
In the above-mentioned composition, the light source emitting module 9 of detecting devices and the receiver module of adjacent detecting devices 10 common formation light paths, wherein light source is used to survey the mist condition for through code modulated infrared light; The humiture detection module 13 of detecting devices 1 is used to detect the humiture situation of surrounding environment; The ZigBee wireless communication interface 11 of detecting devices 1 and the Wireless communication interface module 22 of opertaing device 2 are used for the networking and the information transmission of each equipment room; Warning when LED alarm module 12 is used to have the mist feelings; GPRS interface 23 or Ethernet interface 24 are used for mist condition testing result is reported vehicle supervision department 4 automatically.Detecting devices 1 power supply can be adopted the solar panel power supply, timing wake-up, and all the other times are in sleep pattern, reduce power consumption as far as possible.
Particularly, a kind of control method based on the automatic detection alarm of above-mentioned highway mist condition system may further comprise the steps:
Step 1, the detecting devices regularly IR of launching code modulation are given adjacent detecting devices; First infrared receiving terminal of adjacent detecting devices judges whether to exist the mist condition according to the situation that receives IR; If have the mist condition then execution in step 2, otherwise execution in step 5;
Step 5, adjacent detecting devices detect the humiture of surrounding environment, and the mist condition result and the humiture result that detect are transferred to opertaing device through the ZigBee interface, and are transferred to vehicle supervision department by opertaing device through GPRS interface or Ethernet interface.
Below in conjunction with embodiment the present invention is done further detailed description:
In conjunction with Fig. 1, the automatic detection alarm of highway mist condition system is made up of detecting devices 1, opertaing device 2.Each detecting devices can detect humiture independently, forms a detection node with adjacent detecting devices simultaneously and carries out the detection of mist condition automatically.Detecting devices 1 is installed in highway along the line 3 at certain intervals.In addition, at a certain distance, an opertaing device 2 is installed.Detecting devices 1 is formed the automatic detection alarm of mist condition system with opertaing device 2 through the networking of ZigBee wireless mode, and opertaing device 2 reports vehicle supervision department 4 through GPRS wireless data transmission mode or Ethernet mode with mist condition testing result automatically.
Can know that in conjunction with Fig. 2-Fig. 4 the formation of detecting devices 1 comprises flush bonding processor nucleus module 8, light source emitting module 9, light source receiver module 10, ZigBee wireless communication interface 11, LED alarm module 12 and humiture detection module 13; The formation of opertaing device 2 comprises flush bonding processor core cell 21, ZigBee Wireless communication interface module 22, GPRS interface 23 and Ethernet interface 24.Wherein, The flush bonding processor nucleus module 8 of detecting devices 1 is identical with the basic comprising of the flush bonding processor core cell 21 of opertaing device 2; Comprise flush bonding processor and be attached thereto the power module that connects, clock module, reset circuit module, debugging interface module etc. respectively, but these two kinds of concrete flush bonding processors of selecting for use of equipment are different.ZigBee Wireless communication interface module 22 hardware of the ZigBee wireless communication interface 11 of detecting devices 1 and opertaing device 2 are identical, select the CC2530 of TI company for use.The LED alarm module 12 of detecting devices 1 adopts the LED lamp to realize.The light source emitting module 9 of detecting devices 1 comprises infrared coding circuit and a plurality of infrared transmitting tube, and light source receiver module 10 comprises a plurality of integrated infrared receiving terminals and corresponding decoding circuit.Humiture detection module 13 can be made up of the SHT11 digital hygro sensor and the related peripheral circuit of Sensirion company, has the higher detection precision.The GPRS interface 23 of opertaing device 2 can select for use SIMCom company to aim at the GSM/GPRS module SIM900A of 2 frequencies of market, China's Mainland design, and Ethernet interface 24 can be selected the W5100 of Wiznet company for use.The model that flush bonding processor is different according to different equipment choosings; For example the flush bonding processor in the opertaing device 2 can be selected the LPC family chip of NXP company for use, and the flush bonding processor in the detecting devices 1 can use enhancement mode integrated among the CC2530 51 single-chip microcomputers.
In conjunction with Fig. 1 and Fig. 5, the workflow of illustrative system.Two detecting devicess with adjacent are example; The flush bonding processor nucleus module 8 of detecting devices I is through the IR 14 of software control light source emitting module 9 regularly external launching code modulation; First infrared receiving terminal in the light source receiver module 10 of adjacent detecting devices II receives IR 14; The flush bonding processor nucleus module 8 of detecting devices II is judged the current mist condition that whether exists according to the IR situation that receives.When weather is sunny, when not having mist, the LED alarm module 12 of detecting devices II is failure to actuate.When the mist condition appearred in testing result, detecting devices II started second infrared receiving terminal in the light source receiver module 10, carries out the detection once more of mist condition.If the testing result of second infrared receiving terminal is consistent with the testing result of first infrared receiving terminal, then detecting devices II confirms to have the mist condition to exist; If the testing result of second infrared receiving terminal is no mist condition, then start the 3rd infrared receiving terminal, judge final mist condition according to the testing result of the 3rd infrared receiving terminal.If the final detection result of detecting devices II does not then provide alerting signal for there not being the mist condition; If detect the mist condition, the LED alarm module 12 of then controlling detecting devices II sends alerting signal, promptly presses the certain frequency flicker.These two detecting devicess 1 are certain hour at interval, repeats said process and detects.Therefore, can realize detecting automatically the mist condition and provide alerting signal, judge, reduce the false alarm that single infrared receiving terminal breaks down and brought through detection repeatedly through adjacent two detecting devicess 1, thus guiding vehicle on highway safe passing.
Detecting devices II regularly detects mist condition information and humiture information, and testing result is sent through the ZigBee wireless network.After the multi-hop route of information via wireless network, the ZigBee Wireless communication interface module 22 of automatic controlled device 2 is received.Opertaing device 2 is collected mist condition information and the humiture information that each detecting devices sends, and with the synthetic information frame that has the certain significance of these message block, regularly sends to vehicle supervision department 4 through GPRS interface 23 or Ethernet interface 24.Relevant geographical locational mist condition information and humiture information can accurately be known in each address in the information frame that vehicle supervision department 4 receives through judgement.
By on can know that system of the present invention can real time automatic detection mist condition, and provides alerting signal, automaticity is high.
Claims (8)
1. the automatic detection alarm of highway mist condition system; It is characterized in that; Comprise detecting devices [1] and opertaing device [2]; It is along the line that above-mentioned detecting devices [1] and opertaing device [2] all are arranged on highway, and said detecting devices [1] is connected with opertaing device [2], is its control signal that provides highway mist condition information and receiving control apparatus to send.
2. the automatic detection alarm of highway mist condition according to claim 1 system is characterized in that wireless connections between detecting devices [1] and the opertaing device [2].
3. the automatic detection alarm of highway mist condition according to claim 1 system; It is characterized in that detecting devices [1] comprises flush bonding processor nucleus module [8], light source emitting module [9], light source receiver module [10], ZigBee wireless communication interface [11], LED alarm module [12] and humiture detection module [13];
Wherein light source emitting module [9] is connected with flush bonding processor nucleus module [8]; The infrared light of emission modulation under the control of flush bonding processor nucleus module [8]; Light source receiver module [10] is connected with flush bonding processor nucleus module [8]; Give flush bonding processor nucleus module [8] with the optical signal transmission that receives, ZigBee wireless communication interface [11] is connected with flush bonding processor nucleus module [8], transmitting/receiving wireless signal under the control of flush bonding processor nucleus module [8]; LED alarm module [12] is connected with flush bonding processor nucleus module [8]; Under the control of flush bonding processor nucleus module [8], report to the police, humiture detection module [13] is connected with flush bonding processor nucleus module [8], gives flush bonding processor nucleus module [8] with detected humiture information transmission.
4. the automatic detection alarm of highway mist condition according to claim 1 system; It is characterized in that; Opertaing device [2] comprises flush bonding processor core cell [21], ZigBee Wireless communication interface module [22], GPRS interface [23] and Ethernet interface [24]; Said ZigBee Wireless communication interface module [22] is connected with flush bonding processor core cell [21]; Transmitting/receiving wireless signal under the control of flush bonding processor core cell [21], GPRS interface [23], Ethernet interface [24] all are connected with flush bonding processor core cell [21], for it provides communication interface.
5. the automatic detection alarm of highway mist condition according to claim 3 system; It is characterized in that; Said flush bonding processor nucleus module [8] comprises flush bonding processor, power module, reset circuit module, clock module and debugging interface module, and said power module, reset circuit module, clock module and debugging interface module all are connected with flush bonding processor.
6. the automatic detection alarm of highway mist condition according to claim 3 system is characterized in that the quantity of the inner infrared receiving terminal of light source receiver module [10] is more than or equal to 1.
7. the automatic detection alarm of highway mist condition according to claim 4 system; It is characterized in that; Said flush bonding processor core cell [21] comprises flush bonding processor, power module, reset circuit module, clock module and debugging interface module, and said power module, reset circuit module, clock module and debugging interface module all are connected with flush bonding processor.
8. the control method based on the automatic detection alarm of the said highway mist of claim 1 condition system is characterized in that, may further comprise the steps:
Step 1, the detecting devices regularly IR of launching code modulation are given adjacent detecting devices; First infrared receiving terminal of adjacent detecting devices judges whether to exist the mist condition according to the situation that receives IR; If have the mist condition then execution in step 2, otherwise execution in step 5;
Step 2, utilize second infrared receiving terminal of adjacent detecting devices to judge the IR situation that receives, if having the mist condition then execution in step 4, otherwise execution in step 3;
Step 3, utilize the 3rd infrared receiving terminal of adjacent detecting devices to judge the IR situation that receives, if having the mist condition then execution in step 4, otherwise execution in step 5;
Step 4, alarm module begin to report to the police;
Step 5, adjacent detecting devices detect the humiture of surrounding environment, and the mist condition result and the humiture result that detect are transferred to opertaing device through the ZigBee interface, and are transferred to vehicle supervision department by opertaing device through GPRS interface or Ethernet interface.
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| CN103500519A (en) * | 2013-10-12 | 2014-01-08 | 北京中交华安科技有限公司 | Fog region driving safety intelligent guiding system and method |
| WO2014207592A3 (en) * | 2013-06-26 | 2015-05-14 | Koninklijke Philips N.V. | An apparatus and method employing sensor-based luminaires to detect areas of reduced visibility and their direction of movement |
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| CN102968904A (en) * | 2012-12-18 | 2013-03-13 | 江南大学 | Expressway agglomerate fog pre-warning system |
| WO2014207592A3 (en) * | 2013-06-26 | 2015-05-14 | Koninklijke Philips N.V. | An apparatus and method employing sensor-based luminaires to detect areas of reduced visibility and their direction of movement |
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Application publication date: 20120801 |