CN203242166U

CN203242166U - Guardrail collision detection device

Info

Publication number: CN203242166U
Application number: CN 201320293726
Authority: CN
Inventors: 邓皓
Original assignee: Chongqing Industry Polytechnic College
Current assignee: Chongqing Industry Polytechnic College
Priority date: 2013-05-27
Filing date: 2013-05-27
Publication date: 2013-10-16
Anticipated expiration: 2023-05-27

Abstract

The utility model discloses a guardrail collision detection device and relates to an alarm device. The guardrail collision detection device comprises a capacitive accelerometer and a power supply module, wherein an output end of the capacitive accelerometer is connected with an input end of a processor through a capacitance detection circuit, the processor is connected in a bidirectional mode with an RF communication module, the processor carries out wireless data transmission and reception through the RF communication module, and the power supply module provides power for the processor and the RF communication module. The guardrail collision detection device can be used for detecting collision of a guardrail accurately and alarming timely, can be self-powered, requires no frequent battery replacement and can be conveniently installed and used in remote places.

Description

The rail collision pick-up unit

Technical field

The utility model relates to a kind of warning device, particularly relates to a kind of rail collision pick-up unit.

Background technology

In recent years, the highway in China communication has obtained significant progress, yet highway transportation has caused mass casualties and tremendous economic loss because of traffic hazard again for when having made major contribution in the national economy and social development.After a traffic disaster occurs, usually untimely owing to rescuing and dredging, often cause the secondary traffic hazard, aggravated traffic congestion, continuous rear collision meets with into larger casualties and economic loss.

Common accident detection method has at present:

1. artificial warning

The method is in the road both sides alarm button to be set, and when accident occurs, by pedestrian, road monitoring personnel etc. warning is set.Owing to when accident occurs, need artificially manually to press alarm button, report Surveillance center by transmission line again, this system automation degree is inadequate, and need to lay transmission line completely, and cost is high, less economical.

2. detection line is reported to the police

By laying detection line completely, when severing guardrail board in that great traffic accident occurs, alarm checks the break-make of detection line, and the vehicle of reporting to the police, warn the back is noted dodging, taking care, alarm command centre, but this patent need to be laid cable completely, and cost and quantities are larger.And this patent alarm mode is a kind of mode from bottom to top, has certain management risk.

3. camera is reported to the police

Utilization is laid in the road both sides or the camera of top is implemented monitoring, analyzing and processing condition of road surface and vehicle figure, in case crash, scene of the accident picture and normal picture are different, then report to the police and inform command centre, command centre then takes artificial early warning or automatic early-warning, informs front vehicle and takes the rescue measure.According to statistics, automobile once repeatedly occured and smashes railing and fall into fluviatic accident in China, occured also that automobile breaks railing and the tragedy that falls down from viaduct.In these traffic hazards, have 30% to be that vehicle runs off outside the road and causes.The ratio that the spy who causes thus, great pernicious traffic hazard account for such total number of accident reaches more than 62%.Therefore, when strengthening the crashproof ability of guardrail, the real-time detection of anticollision barrier is to the control of traffic hazard, and especially it has considerable meaning to the control of special, great pernicious traffic hazard.

The utility model content

Because the defects of prior art, technical problem to be solved in the utility model provides and a kind ofly can accurately detect the pick-up unit whether guardrail is hit.

For achieving the above object, the utility model provides a kind of rail collision pick-up unit, comprise capacitive accelerometer and power module, the output terminal of described capacitive accelerometer connects the input end of processor by capacitive detection circuit, the two-way RF communication module that is connected with of described processor, described processor carries out wireless data transceiving by described RF communication module, and described power module is to described processor and the power supply of RF communication module.

Owing in guardrail is met accident the process of Vehicular impact, can send vibration signal, and different rum points, bump degree can corresponding different amplitudes, the signal of frequency.During use, capacitive accelerometer is close to guardrail and is installed, after guardrail is knocked, the sampling capacitor size of capacitive accelerometer will change, convert the capacitance signal that capacitive accelerometer detects to frequency signal by capacitive detection circuit, and export to processor, processor carries out wireless data transceiving by the RF communication module and reports to the police to realize rail collision.

Further, described processor is the two-way GPRS communication module that is connected with also, and described processor carries out wireless data transceiving by described GPRS communication module, and described power module is powered to described GPRS communication module.Adopt above technical scheme, can transmit rail collision information to the information center that passes to far-end by the GPRS communication module between the rail collision pick-up unit.

Better, described power module is comprised of solar panel and Voltage stabilizing module, and the output terminal of described solar panel connects the input end of described Voltage stabilizing module, and described Voltage stabilizing module is to described processor, RF communication module and the power supply of GPRS communication module.Owing to adopt above technical scheme, need not change for a long time battery, be convenient to use in the open air.

Better, described capacitive detection circuit comprises LC frequency-modulated generator and limiter, the output terminal of described capacitive accelerometer connects the input end of described LC frequency-modulated generator, the output terminal of described LC frequency-modulated generator connects the input end of described limiter, and the output terminal of described limiter connects the input end of described processor.

The beneficial effects of the utility model are: the utility model can accurately detect the collision situation of guardrail and can in time report to the police, simultaneously can self-powered, without the frequent battery, be convenient to install and use in remote place.

Description of drawings

Fig. 1 is the circuit theory synoptic diagram of the utility model one embodiment.

Embodiment

The utility model is described in further detail below in conjunction with drawings and Examples:

As shown in Figure 1, a kind of rail collision pick-up unit, comprise capacitive accelerometer 1, power module 2, capacitive detection circuit 3, processor 4, RF communication module 5 and GPRS communication module 6, described capacitive detection circuit 3 comprises LC frequency-modulated generator 9 and limiter 10, the output terminal of described capacitive accelerometer 1 connects the input end of described LC frequency-modulated generator 9, the output terminal of described LC frequency-modulated generator 9 connects the input end of described limiter 10, the output terminal of described limiter 10 connects the input end of described processor 4, described processor 4 is connected two-way the connection with the GPRS communication module with RF communication module 5 respectively, described power module 2 is comprised of solar panel 7 and Voltage stabilizing module 8, the output terminal of described solar panel 7 connects the input end of described Voltage stabilizing module 8, and described Voltage stabilizing module 8 is to described processor 4,

RF communication module

5 and 6 power supplies of GPRS communication module.

More than describe preferred embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art need not creative work and just can make many modifications and variations according to design of the present utility model.Therefore, all in the art technician comply with design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should be in the determined protection domain by claims.

Claims

1. rail collision pick-up unit, it is characterized in that: comprise capacitive accelerometer (1) and power module (2), the output terminal of described capacitive accelerometer (1) connects the input end of processor (4) by capacitive detection circuit (3), the two-way RF communication module (5) that is connected with of described processor (4), described processor (4) carries out wireless data transceiving by described RF communication module (5), and described power module (2) is to described processor (4) and RF communication module (5) power supply.

2. rail collision pick-up unit as claimed in claim 1, it is characterized in that: described processor (4) is the two-way GPRS of being connected with communication module (6) also, described processor (4) carries out wireless data transceiving by described GPRS communication module (6), and described power module (2) is powered to described GPRS communication module (6).

3. rail collision pick-up unit as claimed in claim 1 or 2, it is characterized in that: described power module (2) is comprised of solar panel (7) and Voltage stabilizing module (8), the output terminal of described solar panel (7) connects the input end of described Voltage stabilizing module (8), and described Voltage stabilizing module (8) is to described processor (4), RF communication module (5) and GPRS communication module (6) power supply.

4. rail collision pick-up unit as claimed in claim 1, it is characterized in that: described capacitive detection circuit (3) comprises LC frequency-modulated generator (9) and limiter (10), the output terminal of described capacitive accelerometer (1) connects the input end of described LC frequency-modulated generator (9), the output terminal of described LC frequency-modulated generator (9) connects the input end of described limiter (10), and the output terminal of described limiter (10) connects the input end of described processor (4).