CN212677279U

CN212677279U - High beam signal acquisition probe of automobile

Info

Publication number: CN212677279U
Application number: CN201821350875.4U
Authority: CN
Inventors: 詹水旺
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-08-14
Filing date: 2018-08-14
Publication date: 2021-03-09
Anticipated expiration: 2028-08-14

Abstract

A high beam signal acquisition probe for an automobile is composed of a photosensitive sensor, a directional light guide tube and a base. The photosensitive sensor (1) is embedded and fixed or fixed on a bracket of the directional light guide cylinder (3) from the tail part of the directional light guide cylinder (3), the distance between the photosensitive sensor (1) and the lighting hole (2) is 3mm-200m, and the inner diameter of the directional light guide cylinder (3) is 3mm-50 mm. Street lamps, signal lamps, automobile dipped headlights and other stray lights are all blocked outside the cylinder body through the cylinder body length and the working angle of the directional light guide cylinder (3), and only the automobile high beam which is obliquely emitted upwards can enter the directional light guide cylinder to trigger the photosensitive sensor.

Description

High beam signal acquisition probe of automobile

The technical field is as follows:

the utility model relates to an optical signal acquisition probe, the accurate car high beam signal acquisition probe of saying so belongs to automotive electronics technical field.

Background art:

the traffic policemen in Shenzhen, Shanghai, Fuzhou and other places in China try out the behavior of using the automobile high beam in violation of the regulations and try out the automatic snapshot system for using the automobile high beam in violation of the regulations. According to the use data of traffic polices in various regions for several years, the capture rate of the device to illegal vehicles is only a few percent, and the use requirement is far not met. The method includes the steps that a vehicle which uses a high beam in a violation mode is captured, the high beam needs to be identified firstly, and a high beam signal needs to be collected firstly when the high beam is identified. However, in the urban road section, a mixed light source is formed by street lamps, signal lamps, various lamps, commercial and civil lamps and the like, and how to acquire the high beam signal of the automobile from the mixed light source is the key for improving the capture rate of illegal vehicles.

The invention content is as follows:

the utility model provides a high beam signal acquisition probe for an automobile. The automobile high beam signal acquisition probe consisting of the photosensitive sensor, the tubular directional light guide cylinder and the base can prevent stray light such as street lamps, signal lamps, various automobile dipped headlights and the like from entering the cylinder body, only acquires automobile high beam signals which are obliquely reflected upwards and has no omission, and therefore the capture rate of the device for illegal vehicles reaches more than 95%.

The utility model discloses a realize like this: the tubular directional light guide cylinder is a hollow plastic part, one end of the tubular directional light guide cylinder is a transparent lighting hole, the inner cavity of the tubular directional light guide cylinder is straight or is provided with a bracket for mounting a photosensitive sensor, the photosensitive sensor is fixed on the bracket or is directly embedded from the tail part of the directional light guide cylinder and is fixed by tight fit, the photosensitive sensor is 3mm-200mm away from the tail part of the directional light guide cylinder, and the inner diameter of the directional light guide cylinder is 3mm-50mm away from the tail part of the. The photosensitive sensor adopts 2CU series silicon photosensitive diodes or 3DU series phototriodes, the parameters meet the requirements that the working voltage is more than 10V, the dark current is less than or equal to 0.5 muA, the use environment temperature is 40-85 ℃, and the shape is phi 3 or phi 5. Because this is a special probe that is used for high beam snapshot equipment to gather the high beam signal, to realize this technical scheme's purpose, must combine the service condition of camera and camera, so, the complete scheme of the utility model is to combine above-mentioned main structure body in the camera, if need be installed probe and camera separately and use, the service condition (mounting height and angle) of those two also need unanimous. In practical use, the installation angle (the included angle between the directional light guide tube and the ground) of the probe (camera) is 10 to 20 degrees.

In practical use, the probe (camera) is installed on a cross bar 6 meters above the road, and the installation angle (the included angle between the directional light guide cylinder and the ground) is 10 to 20 degrees. The automobile high beam signal acquisition probe completes signal acquisition by the cooperation of the directional light guide tube and the photoelectric sensor at the tail end of the directional light guide tube, and the directional light guide tube is used for cooperatively eliminating all stray light including automobile low beams by utilizing the length and the installation angle of the tube body and selecting high beams. Because the photoelectric sensor in the cylinder cavity needs to be triggered, the triggering light ray must enter the cylinder cavity, the irradiation angle of the photoelectric sensor needs to correspond to the installation angle of the light guide cylinder, the photoelectric sensor and the light guide cylinder are in the same straight line, the light ray can reach the tail end of the cylinder cavity to trigger the sensor, and signal acquisition is completed, so that the acquired light ray can only be the light ray obliquely emitted upwards. This property is not present throughout all light sources known as veiling glare. Like a car's low beam, it appears bright as well, but it is only obliquely directed downward toward the ground and has a distinct cut-off above which there is darkness and darkness, even without upward oblique light. As for the street lamp, the signal lamp, and the commercial lamp, all are diffused and opposite in direction. Only the automobile high beam has strong upward oblique ray with the height of more than 6 meters and is directly led into the barrel cavity. In fact, a photoelectric sensor is arranged in a cavity of the directional light guide cylinder, which seems to be a very simple combination, but is a customized catching artifact aiming at the characteristic that the automobile high beam is obliquely emitted upwards.

By adopting the scheme, the automobile high beam signal acquisition probe has selectivity on light in an environment of mixing various light sources, and street lamps, signal lamps, dipped headlights and other stray light are blocked outside the cylinder body and only directionally (angularly) fixed points (distances) are used for acquiring the automobile high beam signals obliquely reflected upwards. When the upward oblique angle of the high beam of the running automobile corresponds to the installation angle of the high beam signal acquisition probe fixed at the height of 6 meters, the light beam is emitted into the directional light collection cylinder, the photosensitive sensor is triggered by light, and the light signal is converted into an electric signal to be input into the control circuit, so that the camera is controlled to capture the high beam automobile.

Description of the drawings:

fig. 1 is a structural view of a first embodiment of the present invention.

Fig. 2 is a structural view of a second embodiment of the present invention.

The specific implementation mode is as follows:

in the embodiment shown in fig. 1, the directional light guide cylinder (3) is thin and simple, the inner hollow diameter of the directional light guide cylinder is the same as that of the photosensitive sensor (1), and the photosensitive sensor (1) is embedded from the tail part of the directional light guide cylinder (3). The base (4) is used for fixing, the bottom of the base is a plane and is parallel to the directional light guide cylinder (3), and the probe is fixed on a camera or a power supply of the camera by using double faced adhesive tape. The positive pole of the photosensitive sensor (1) is connected with the positive electricity of the control circuit, and the negative pole is connected with the signal input of the control circuit.

In the embodiment shown in fig. 2, the directional light guide tube (3) is a thick and simple structure with a bracket for installing the photosensitive sensor (1) arranged in the cavity, and the photosensitive sensor (1) is fixed on the bracket in the cavity of the directional light guide tube (3). If the probe is arranged in the camera shell, the structure and the fixing mode of the base (4) are the same as those of the first embodiment, but the probe is borne by a camera protective shell of any type when the probe and the camera are required to be separately arranged, the probe is fixed in the central position in the shell in an adhesive mode only by adjusting the thickness of the base (4), or the base (4) is made into a support structure and fixed by screws, and the directional light guide cylinder (3) is parallel to the direction of the shell and the axis. The positive pole of the photosensitive sensor (1) is connected with the positive electricity of the control circuit, and the negative pole is connected with the signal input of the control circuit.

Claims

1. The utility model provides a car high beam signal acquisition probe, comprises photosensitive sensor and directional leaded light section of thick bamboo and base, characterized by: the photosensitive sensor (1) is embedded and fixed or fixed on a bracket of the directional light guide cylinder (3) from the tail part of the directional light guide cylinder (3), the distance between the photosensitive sensor (1) and the lighting hole (2) is 3mm-200m, and the inner diameter of the directional light guide cylinder (3) is 3mm-50 mm.

2. The automobile high beam signal acquisition probe of claim 1, which is characterized in that: the photosensitive sensor (1) adopts a 2CU series photosensitive diode and a 3DU series photosensitive triode.

3. The automobile high beam signal acquisition probe of claim 1, which is characterized in that: the probe structure main body consisting of the photosensitive sensor (1), the directional light guide cylinder (3) and the base (4) is installed and fixed in a protective shell of the camera, and the directional light guide cylinder and the camera are parallel to each other.