CN205334755U - Special linear highway section of mountain area highway danger attitude discriminating gear - Google Patents

Abstract

The utility model discloses a special linear highway section of mountain area highway danger attitude discriminating gear, including data acquisition module, information processing module and early warning module, specifically the method is as follows: the analysis is carried out to linear data to mountain area highway, confirm to treat detecting element, it lays data acquisition module and is used for gathering the speed of a motor vehicle in each one -way each lane of unit and vehicle operation's video information to treat detecting element, information processing module receives video information and carries out the vehicle number of image processing in order to obtain detecting element, these real time information are transmitted the early warning module, the early warning display module shows corresponding information according to the variable display module of information processing result drive, thereby carry out the early warning to the vehicular traffic, the reduction misses the traffic accident that safety distance causes because of the vehicle, promote the security of traveling of mountain area highway.

Description

A kind of danger, mountainous area highway specific line style section state discriminating gear

Technical field

This utility model relates to highway safety monitoring technical field, is specifically related to a kind of danger, mountainous area highway specific line style section state discriminating gear。

Background technology

While highway promotes national economy high speed development, thing followed traffic safety problem also becomes increasingly conspicuous。Owing to being limited by orographic condition, mountainous area highway sharp turn longitudinal gradient ratio is big, road alignment is changeable, tunnel bridge is more, in addition mountain area climatic environment is changeable, sleet, foggy weather are relatively conventional so that the fatality rate of mountainous area highway generation vehicle accident and especially big road accident rate are higher much than other landform highways。

There is indivisible relation between the linear complexity of mountainous area highway (linear geometric parameter, linear combination mode etc.) and its high accident rate, and vehicle rear-end collision and brake failure are the one of the main reasons causing mountainous area highway accident to occur。Therefore, the precarious position by the method for Video Detection, image recognition and radar velocity measurement, mountainous area highway section vehicle travelled is differentiated and early warning, it is possible to reduce the accident because causing not up to driving safety spacing occurs。

Image recognition and radar velocity measurement are to have developed comparatively ripe technology, its equipment has enough selection spaces especially, the mode utilizing image recognition and radar velocity measurement carries out the dangerous state in mountainous area highway specific line style section and differentiates and early warning, it is possible to reduce the generation of accident, promotes travel safety。

Utility model content

In order to overcome shortcoming that prior art exists with not enough, this utility model provides a kind of danger, mountainous area highway specific line style section state discriminating gear。

This utility model adopts the following technical scheme that

A kind of danger, mountainous area highway specific line style section state discriminating gear, including unit to be detected, data acquisition module, message processing module and warning module；

Described data acquisition module gathers the cmos sensor of unit vehicle group's video to be detected and the radar sensor for gathering unit to be detected each track speed is constituted by being used for；

Described message processing module is made up of message handler and wireless transmitter module；

Described warning module is made up of wireless receiving module and variable display module；

Described wireless transmitter module, cmos sensor and radar sensor are connected with message handler respectively, data processed result will be sent to wireless transmitter module by described message handler, wireless receiving module receives data processed result, then passes through variable display module and shows in real time。

Described variable display module is made up of GPRS wireless controlled fabrication and LED display。

Described message handler adopts model to be TMS320C6748 processor。

Described cmos sensor and radar sensor are arranged on the top of unit to be detected by portal frame。

A kind of danger, mountainous area highway specific line style section state differentiates method for early warning, it is characterised in that comprise the steps:

S1 obtains the linear data of mountainous area highway treating early warning, it is determined that starting point is gone forward side by side walking along the street section detection dividing elements, finally filters out specific line style detection unit, it is determined that unit to be detected；

S2 is provided above cmos sensor and radar sensor at unit to be detected, and cmos sensor gathers the video of unit to be detected, and radar sensor gathers the speed in the unidirectional each track of unit to be detected；

S3 message processing module assigns instruction to cmos sensor, gather the road traffic state image of unit to be detected, message processing module calculates the vehicle number N of this unit to be detected according to this image, send instructions to radar sensor simultaneously, measure the speed of this unit vehicle to be detected with N for the count cycle, carry out statistical analysis and obtain 85% speed v₈₅；

S4 calculates the minimum safe spacing of this detection unit and meets the maximum vehicle number of minimum safe spacing；

The vehicle number N of this unit to be detected is contrasted by S5 with the maximum vehicle number meeting minimum safe spacing, judge that whether the vehicle of unit to be detected is in the hole, corresponding early warning information is sent to by wireless transmitter module the warning module in downstream, drives variable display module display information。

The minimum Adjacent vehicles safe spacing of described calculating particularly as follows:

$L_{S_{ij}}=l+l_a+\frac{v_{85}t}{3.6}+L_z$

In formula:The minimum safe spacing of Adjacent vehicles on i-th detection unit j-th strip track；

The vehicle commander of l single unit vehicle, takes 5.0m；

l_aParking safe spacing；

v₈₅85% speed；

T driver reaction time；

L_zThe braking pitch difference of front and back car。

The described maximum vehicle number meeting minimum safe spacing, particularly as follows:

I-th detection unit j-th strip track then meets the maximum vehicle number of minimum safe spacingFor:

$Q_{S_{ij}}=\frac{S_{ij}}{L_{s_{ij}}}=\frac{S_{ij}}{l+l_a+\frac{v_{85}t}{3.6}}$

Wherein S_ijThe length in i-th detection unit j-th strip track；

Assuming that attachment coefficient is identical, i.e. L_z=0, then

Specifically it is determined as:

(1) ifThen illustrate in the hole, variable display module display red alarm information；

(2) ifThen illustrate in a safe condition, the green normal information of variable display module display。

The beneficial effects of the utility model: this utility model can be monitored mountainous area highway specific line style section in real time and be run whether vehicle meets traffic safety spacing, therewith travel condition of vehicle is differentiated, and according to differentiating that driver is carried out danger state early warning by result, to point out driver to adjust speed, keep driving safety spacing。This utility model can realize intellectuality, efficient solve specific line style section, mountain area and can not keep safe spacing that the problem of vehicle accident occurs because of driver, to promote the travel safety of mountainous area highway。

Accompanying drawing explanation

Fig. 1 is structure connection diagram of the present utility model；

Fig. 2 is the scheme of installation of various piece in this utility model embodiment；

Fig. 3 is the screening process figure of unit to be detected of the present utility model；

Fig. 4 is pavement section schematic diagram of the present utility model。

Detailed description of the invention

Below in conjunction with embodiment and accompanying drawing, this utility model is described in further detail, but embodiment of the present utility model is not limited to this。

Embodiment

As it is shown in figure 1, a kind of danger, mountainous area highway specific line style section state discriminating gear, including unit to be detected, data acquisition module, message processing module and warning module；

Described data acquisition module gathers the cmos sensor of unit vehicle group's video to be detected and the radar sensor for gathering unit to be detected each track speed is constituted by being used for, described data acquisition module is arranged on the top of unit to be detected by portal frame, as described in Figure 2, the present embodiment fills cmos sensor at interval of 100 meter amperes in section to be detected, variable display module is arranged on the display of 200 meters of downstream。

Described message processing module is made up of message handler and wireless transmitter module；By message handler, the processing controls warning module of data is shown corresponding information, thus the current of vehicular traffic is carried out early warning, reduce the vehicle accident because causing not up to vehicle safety spacing, promote mountainous area highway driving safety。

Described warning module is made up of wireless receiving module and variable display module, also include supply module, concrete warning module passes through solar cell for supplying power, specifically, solar energy photovoltaic panel is adopted to convert solar energy into electric energy, and electric energy is stored in accumulator, in order to power for whole prior-warning device under different periods。

Described wireless transmitter module, cmos sensor and radar sensor are connected with message handler respectively, data processed result will be sent to wireless transmitter module by described message handler, wireless receiving module receives data processed result, then passes through variable display module and shows in real time。

In the present embodiment, cmos sensor is the common type of imageing sensor, this device adopts sonyFCB-EH6300CMOS imageing sensor, photo-sensitive cell is of a size of 1/2.8, pixel reaches 3,300,000, has 20 Zoom Lens and F1.6 aperture, can automatically switch wide dynamic and can obtain noise reduction in the use environment of insufficient light, the image supporting full HD quality exports, and output digit signals is connected with message handler。

Radar sensor: radar sensor can measure vehicle real-time speed, its application principle is Doppler effect, when the high-frequency signal that radar is launched is radiated at the mobile target reflection in its sphere of action, its frequency values changes, utilize the difference on the frequency sending with receiving signal, calculated the speed of object of which movement by formula, this Doppler frequency shift is proportional to the speed of mobile target。Selecting the HT3000 velocity radar that Hangzhou Lai Lai Science and Technology Ltd. produces, this radar sensor tests the speed accuracy for ± 1km/h, and testing the speed ranges for 5～240km/h, meets expressway and tests the speed requirement, by RS232 agreement and message handler communication。

Message handler: select TMS320C6748 message handler, this processor is the brand-new high-performance processor that Texas Instrument releases floating-point function, it is industry floating-point signal processor (DSP) least in power-consuming, can fully meet high energy efficiency, the connective design demand to high integration peripheral hardware, dissipation more low in calories and longer battery。There is RS232 serial ports and USB interface, support SPI, iic bus etc., obtain cmos sensor and radar sensor data, sent by GPRS network after process。

Variable display module: variable display module is made up of GPRS wireless controlled fabrication and LED screen。The information of message handler is received in GPRS controlled in wireless clamping, and drives LED display, shows corresponding information。

A kind of danger, mountainous area highway specific line style section state differentiates method for early warning, comprises the steps:

S1 obtains the linear data of the mountainous area highway treating early warning, determine starting point go forward side by side walking along the street section detection dividing elements, finally filter out specific line style detection unit, it is determined that unit to be detected, described specific line style refers to long and steep downgrade, continuous sharp turn etc., and concrete division and screening process are as shown in Figure 3；Finally obtaining unit to be detected in the present embodiment as shown in Figure 4, A is starting point, and B is terminal, is divided into 5 detection unit 1-5。

S2 is provided above cmos sensor and radar sensor at unit to be detected, and cmos sensor gathers the video of unit to be detected, and radar sensor gathers the speed in the unidirectional each track of unit to be detected；

S3 message processing module assigns instruction to cmos sensor, gather the road traffic state image of unit to be detected, message processing module calculates the vehicle number N of this unit to be detected according to this image, send instructions to radar sensor simultaneously, measure the speed of this unit vehicle to be detected with N for the count cycle, carry out statistical analysis and obtain 85% speed v₈₅；

S4 calculates the minimum safe spacing of this detection unit and meets the maximum vehicle number of minimum safe spacing；

The vehicle number N of this unit to be detected is contrasted by S5 with the maximum vehicle number meeting minimum safe spacing, judge that whether the vehicle of unit to be detected is in the hole, corresponding early warning information is sent to by wireless transmitter module the warning module in downstream, drives variable display module display information。

(1) ifThen illustrate in the hole, prior-warning device display red alarm information；

(2) ifThen illustrate in a safe condition, the green normal information of prior-warning device display。

The minimum Adjacent vehicles safe spacing of described calculating particularly as follows:

$L_{S_{ij}}=l+l_a+\frac{v_{85}t}{3.6}+L_z$

In formula:The minimum safe spacing of Adjacent vehicles on i-th detection unit j-th strip track；

The vehicle commander of l single unit vehicle, takes 5.0m；

l_aParking safe spacing；

v₈₅85% speed；

T driver reaction time；

L_zThe braking pitch difference of front and back car。

The described maximum vehicle number meeting minimum safe spacing, particularly as follows:

I-th detection unit j-th strip track then meets the maximum vehicle number of minimum safe spacingFor:

$Q_{S_{ij}}=\frac{S_{ij}}{L_{s_{ij}}}=\frac{S_{ij}}{l+l_a+\frac{v_{85}t}{3.6}}$

Wherein S_ijThe length in i-th detection unit j-th strip track；

Assuming that attachment coefficient is identical, i.e. L_z=0, then

Above-described embodiment is this utility model preferably embodiment; but embodiment of the present utility model is also not restricted by the embodiments; other any without departing from the change made under spirit of the present utility model and principle, modification, replacement, combination, simplification; all should be the substitute mode of equivalence, be included within protection domain of the present utility model。

Claims (4)

1. danger, a mountainous area highway specific line style section state discriminating gear, including unit to be detected, it is characterised in that include data acquisition module, message processing module and warning module；

Described data acquisition module gathers the cmos sensor of unit vehicle group's video to be detected and the radar sensor for gathering unit to be detected each track speed is constituted by being used for；

Described message processing module is made up of message handler and wireless transmitter module；

Described warning module is made up of wireless receiving module and variable display module；

Described wireless transmitter module, cmos sensor and radar sensor are connected with message handler respectively, data processed result is sent to wireless transmitter module by described message handler, wireless receiving module receives data processed result, then passes through variable display module and shows in real time。

2. a kind of danger, mountainous area highway specific line style section according to claim 1 state discriminating gear, it is characterised in that described variable display module is made up of GPRS wireless controlled fabrication and LED display。

3. a kind of danger, mountainous area highway specific line style section according to claim 1 state discriminating gear, it is characterised in that described message handler adopts model to be TMS320C6748 processor。

4. a kind of danger, mountainous area highway specific line style section according to claim 1 state discriminating gear, it is characterised in that described cmos sensor and radar sensor are arranged on the top of unit to be detected by portal frame。