CN203386370U - Highway tunnel parking positioning detection and linkage alarm device - Google Patents
Highway tunnel parking positioning detection and linkage alarm device Download PDFInfo
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- CN203386370U CN203386370U CN201320435591.6U CN201320435591U CN203386370U CN 203386370 U CN203386370 U CN 203386370U CN 201320435591 U CN201320435591 U CN 201320435591U CN 203386370 U CN203386370 U CN 203386370U
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Abstract
The utility model relates to a highway tunnel parking positioning detection and linkage alarm device and belongs to the technical field of visible light detection. The highway tunnel parking positioning detection and linkage alarm device includes a parking positioning detection device, a terminal computer, a ZigBee device and a variable information board, wherein the parking positioning detection device includes a warning light, a dual-element visible light illumination detection circuit and a processor module. The parking positioning detection device of the highway tunnel parking positioning detection and linkage alarm device of the utility model is small in size, low in cost and is convenient to install, and can comprehensively detect vehicle driving state inside a tunnel, and can determine positions where vehicles stop; two thermistors and a bandpass filter are innovatively adopted to form the dual-element visible light illumination detection circuit, and the dual-element visible light illumination detection circuit is used for detecting unbalanced change of the resistance of two-element light dependent resistor assembly, wherein the unbalanced change of the resistance of the two-element light dependent resistor assembly is caused by the illumination of vehicle lights when the vehicles drive by, and therefore, interferences of environmental illumination and external radio frequency signals on detection can be avoided, and driving and abnormal parking of the vehicles can be detected more effectively.
Description
Technical field
The utility model belongs to the visible detection technical field, particularly a kind of freeway tunnel parking detection and localization and linkage alarm device.
Background technology
Due to the closure in tunnel inner road space, space environment is narrow, light changes greatly, the visual field is unclear, and the scram in tunnel is difficult for being found in time by other vehicles, very easily causes the secondary traffic hazard, has potential traffic hazard danger; Once accident occurs, the interruption of communication time is longer, and dangerous large, accident treatment is more difficult.At present freeway tunnel parking detection and localization is still used video monitoring system is installed along the line in tunnel, realize on-site supervision in freeway tunnel, the method has good detection effect in the less situation of the magnitude of traffic flow, simultaneously the video monitoring camera install when not intensive there will be monitoring less than dead angle, this just needs the reliability of higher fund input and the monitoring of intensive installation guarantee and reduces dead angle area, not only increases cost but also the corresponding increase of monitoring difficulty.
Summary of the invention
The purpose of this utility model is to provide a kind of simple in structure, detection and localization of freeway tunnel parking cheaply and linkage alarm device and method, to realize detecting in real time driving situation in freeway tunnel without dead angle, find in time scram, and the purpose of reminding front vehicle to dodge.
The technical solution of the utility model is achieved in that a kind of freeway tunnel parking detection and localization and linkage alarm device, comprising:
The parking locating and detecting device carries out communication by ZigBee equipment and terminal computer, and terminal computer is by wired or wireless mode and variable information board communication;
Wherein, described parking locating and detecting device also further comprises: Fresnel Lenses, warning lamp, double base visible light illumination testing circuit, processor module and power management module; Power management module is warning lamp, double base visible light illumination testing circuit and processor module power supply, and Fresnel Lenses connects the input end of processor module through double base visible light illumination testing circuit, and warning lamp connects the output terminal of processor module.
Described visible light illumination testing circuit further comprises photoresistance, resistance, electric capacity and operational amplifier, and wherein, the first photoresistance and the second photoresistance form series circuit, and an end of this series circuit connects power management module, other end ground connection; The tie point place of the first photoresistance and the second photoresistance is connected the first resistance one end, the second resistance one end, the in-phase input end of the other end concatenation operation amplifier of the first resistance and an end of the first electric capacity, the other end ground connection of the first electric capacity; The other end of the second resistance connects the inverting input of the second electric capacity one end, the 3rd resistance one end and operational amplifier, the output terminal of the other end of the other end of the 3rd resistance, the second electric capacity concatenation operation simultaneously amplifier.
Described warning lamp is connected with processor module by the DIO interface, after the control command for the treatment of the issue of device module receiving terminal computing machine, is lit, and warns the vehicle of passing by one's way.
Beneficial effect: the parking locating and detecting device volume the utility model proposes is little, cost is low, easy for installation, can, without vehicle driving states in the detection tunnel at dead angle, can determine vehicle stop position; Two thermistors of use of innovation and bandpass filter form double base visible detection circuit, for detection of Vehicle Driving Cycle through out-of-date because vehicle light illumination makes the unbalanced variation of double base photoresistance resistance, avoided the interference to detecting of ambient light illumination and external radio-frequency signal, more effective detection Vehicle Driving Cycle process and exception parking situation.
The accompanying drawing explanation
Fig. 1 is a kind of embodiment freeway tunnel of the utility model parking detection and localization and linkage alarm device structured flowchart;
Fig. 2 is a kind of embodiment freeway tunnel of the utility model parking detection and localization and linkage alarm device circuit theory diagrams;
Fig. 3 is a kind of embodiment parking of the utility model locating and detecting device shell, wherein, (a) is the front view of shell, is (b) left view of housing;
Fig. 4 is that a kind of embodiment Fresnel Lenses of the utility model is divided into a-quadrant, B area schematic by the Vehicle Driving Cycle process;
The waveform voltage signal figure through out-of-date double base visible detection circuit output at Vehicle Driving Cycle that Fig. 5 is a kind of embodiment of the utility model;
Waveform voltage signal figure when Fig. 6 is a kind of embodiment vehicle process of the utility model parking locating and detecting device.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Embodiment of the present utility model provides freeway tunnel parking detection and localization and linkage alarm device structured flowchart, as shown in Figure 2.Comprise variable information board 11, terminal computer 13, ZigBee equipment 12 and parking locating and detecting device 1, wherein, as shown in Figure 1, parking locating and detecting device 1 further comprises: Fresnel Lenses 2, power management module 6, double base visible light illumination testing circuit 3, warning lamp 5 and processor module 4.The ZigBee module that parking locating and detecting device 1 is built-in by processor module and ZigBee equipment 12 carry out communication, ZigBee equipment 12 connects terminal computer 13, terminal computer 13 by wired mode (as, netting twine) or wireless mode (as, WIFI) with variable information board 11 carry out communication.
In present embodiment, processor module adopts wireless microcontroller to realize, the model of wireless microcontroller is JN5161, terminal computer adopts PC to get final product, the model that ZigBee equipment adopts is WGT2422Z-R, and power management module provides respectively the galvanic power supply of 3V for processor module, warning lamp, double base visible light illumination testing circuit.
Warning lamp connects the DIO port of processor module, the output terminal of double base visible light illumination testing circuit connects the AD port of processor module, the vdd terminal mouth of power management module connects the vdd terminal mouth of processor module, processor module inside, DIO port, AD port, RAM, FLASH and EEPROM are connected ZigBee module and RISC CPU module by data bus, as shown in Figure 2.Wherein, double base visible light illumination testing circuit further comprises photoresistance (RT1 and RT2), resistance (R1, R2 and R3), electric capacity (C1 and C2) and operational amplifier, wherein, photoresistance RT1 and photoresistance RT2 form series circuit, one end of this series circuit connects power management module, other end ground connection; The contact resistance R1 of tie point place mono-end of photoresistance RT1 and photoresistance RT2, resistance R 3 one ends, the in-phase input end of the other end concatenation operation amplifier of resistance R 1 and an end of capacitor C 1, the other end ground connection of capacitor C 1; The other end of resistance R 3 connects the inverting input of capacitor C 2 one ends, resistance R 2 one ends and operational amplifier, the output terminal u of the other end of the other end of resistance R 2, capacitor C 2 concatenation operation simultaneously amplifier
0, in present embodiment, the output terminal u of operational amplifier
0be the output terminal of double base visible light illumination testing circuit.Front end at double base visible light illumination testing circuit, also be provided with Fresnel Lenses, the Fresnel Lenses adopted in present embodiment is divided into 2 zones, be used in the tunnel illumination process, the road of Vehicle Driving Cycle is divided into to 2 zones, after Fresnel Lenses is set, should guarantee photoresistance RT1 and the focus place of photoresistance RT2 in Fresnel Lenses in double base visible light illumination testing circuit.
The shell of parking locating and detecting device as shown in Figure 3.Comprise housing 7, at the upper surface of housing, also be provided with the lampshade 8 for the protection of warning lamp, in the front center of housing, be provided with Fresnel Lenses 2, at the left surface of housing, be provided with external power source interface 9.
The course of work of freeway tunnel parking detection and localization and linkage alarm device is as follows:
In the tunnel of a segment length 600m, with the spaced LED Tunnel Lamp 10 of 3m, equal fixing totally 200 of parking locating and detecting device 1(on side wall below each LED Tunnel Lamp 10), with the LED Tunnel Lamp, be parallel in circuit, Fresnel Lenses 2 spherical surfaces of each parking locating and detecting device to pavement of road level the direction vertical with direction of traffic, variable information board 11 is fixed in tunnel portal and is arranged on the tunnel upper towards direction of traffic, terminal computer and ZigBee equipment are arranged in the tunnel management machine room, ZigBee equipment and 200 parking locating and detecting devices form the ZigBee cordless communication network, as shown in Figure 4.After the Fresnel Lenses of parking locating and detecting device 1a is gathered the light in a-quadrant and B zone, pass to respectively on the photoresistance RT1 and photoresistance RT2 of double base visible light illumination testing circuit, when entering a-quadrant, Vehicle Driving Cycle do not arrive B when zone, car light is pooled on RT1 the RT1 resistance is reduced through the Fresnel Lenses group, and the RT2 resistance does not change, it is supply voltage that now ui value rising is tending towards VDD(), perhaps work as vehicle and roll a-quadrant away from, while entering the B zone, now ui value reduction goes to zero, the voltage signal that both of these case all can change.The signal of this variation enters by operational amplifier, resistance R 1, resistance R 2, resistance R 3 and capacitor C 1, capacitor C 2 and forms anti-phase bandpass filtering amplifying circuit, wherein, the series circuit that resistance R 1 and capacitor C 1 form is for providing the voltage signal lower-frequency limit of filtering by the voltage signal low-frequency disturbance of photoresistance RT1 and photoresistance RT2 output; The parallel circuit that resistance R 2 and capacitor C 2 form is for providing the voltage signal upper frequency limit of filtering by the voltage signal high frequency interference of photoresistance RT1 and photoresistance RT2 output; Resistance R 2 and R3 are for providing the gain amplifier multiple.
Vehicle through the voltage signal ui of the variation that produces in the process of parking locating and detecting device surveyed area after anti-phase bandpass filtering amplifying circuit filtering high and low frequency disturbs, can obtain the oscillogram of voltage signal uo as shown in Figure 5.
Voltage fluctuation signal passes through the AD port input processor module of processor module, and converts data storage to by processor module, and has judged whether that by the numerical value change analysis to data driving vehicle is through (when waveform is level, data are 1.5; When waveform is crest, data are 2.7; When waveform is the lowest point, data are 0.3).Be decreased to gradually 0.3 when data from 1.5, then increase to gradually 2.7 from 0.3, be decreased to gradually 1.5 from 2.7 again, and maintain at 1.5 o'clock, can judge that normal vehicle operation is through this parking locating and detecting device; When Vehicle Driving Cycle just stops to a-quadrant, the a-quadrant intensity of illumination increases, and the B regional change is small, data from 1.5 reduce gradually and a numerical value maintaining lower than 1.5 constant; When Vehicle Driving Cycle enters the B zone and stops through a-quadrant, the a-quadrant intensity of illumination first increases and then is reduced to former intensity of illumination, and the B area light is according to strength increase, and data are decreased to 0.3 gradually from 1.5, again from 0.3 increase to gradually more than 1,5 and a numerical value maintaining higher than 1.5 constant.As shown in Figure 4, in tunnel, travelling truck is through the surveyed area of parking locating and detecting device 1c, parking is in the B zone of parking locating and detecting device 1b and in the a-quadrant of parking locating and detecting device 1a, do not arrive the surveyed area of parking locating and detecting device 1d, the voltage fluctuation signal formed in 4 parking locating and detecting devices is respectively as shown in 1c, 1b, 1a and 1d in Fig. 6.When voltage fluctuation signal is stablized, parking locating and detecting device 1c judgement driving states for travel through, parking locating and detecting device 1b judgement driving states is to reside in this device left field, parking locating and detecting device 1a judgement driving states is to reside in this device right side area, and parking locating and detecting device 1d judgement driving states is to pass through without vehicle.
Although more than described embodiment of the present utility model, but the those skilled in the art in this area are to be understood that, these only illustrate, and can make various changes or modifications to these embodiments, and not deviate from principle of the present utility model and essence.Scope of the present utility model is only limited by appended claims.
Claims (4)
1. a freeway tunnel parking detection and localization and linkage alarm device is characterized in that: comprising:
The parking locating and detecting device carries out communication by ZigBee equipment and terminal computer, and terminal computer is by wired or wireless mode and variable information board communication;
Wherein, described parking locating and detecting device also further comprises: Fresnel Lenses, warning lamp, double base visible light illumination testing circuit, processor module and power management module; Power management module is warning lamp, double base visible light illumination testing circuit and processor module power supply, and Fresnel Lenses connects the input end of processor module through double base visible light illumination testing circuit, and warning lamp connects the output terminal of processor module.
2. freeway tunnel parking detection and localization according to claim 1 and linkage alarm device, it is characterized in that: described visible light illumination testing circuit further comprises photoresistance, resistance, electric capacity and operational amplifier, wherein, the first photoresistance and the second photoresistance form series circuit, one end of this series circuit connects power management module, other end ground connection; The tie point place of the first photoresistance and the second photoresistance is connected the first resistance one end, the second resistance one end, the in-phase input end of the other end concatenation operation amplifier of the first resistance and an end of the first electric capacity, the other end ground connection of the first electric capacity; The other end of the second resistance connects the inverting input of the second electric capacity one end, the 3rd resistance one end and operational amplifier, the output terminal of the other end of the other end of the 3rd resistance, the second electric capacity concatenation operation simultaneously amplifier.
3. freeway tunnel parking detection and localization according to claim 1 and linkage alarm device is characterized in that: described processor module connects warning lamp by the DIO interface.
4. freeway tunnel parking detection and localization according to claim 1 and linkage alarm device is characterized in that: described processor module is held and is connected double base visible light illumination testing circuit by AD.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320435591.6U CN203386370U (en) | 2013-07-22 | 2013-07-22 | Highway tunnel parking positioning detection and linkage alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320435591.6U CN203386370U (en) | 2013-07-22 | 2013-07-22 | Highway tunnel parking positioning detection and linkage alarm device |
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| CN203386370U true CN203386370U (en) | 2014-01-08 |
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| CN201320435591.6U Expired - Fee Related CN203386370U (en) | 2013-07-22 | 2013-07-22 | Highway tunnel parking positioning detection and linkage alarm device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108718257A (en) * | 2018-05-23 | 2018-10-30 | 浙江大学 | A kind of wireless camera detection and localization method based on network flow |
-
2013
- 2013-07-22 CN CN201320435591.6U patent/CN203386370U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108718257A (en) * | 2018-05-23 | 2018-10-30 | 浙江大学 | A kind of wireless camera detection and localization method based on network flow |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140108 Termination date: 20210722 |
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| CF01 | Termination of patent right due to non-payment of annual fee |