CN102088557A

CN102088557A - Synchronous control system of vehicle binocular vision device

Info

Publication number: CN102088557A
Application number: CN 201010566369
Authority: CN
Inventors: 徐家明; 樊景帅; 于涛; 张成海; 尹韵
Original assignee: Dongfeng Motor Co Ltd
Current assignee: Dongfeng Motor Corp
Priority date: 2010-12-01
Filing date: 2010-12-01
Publication date: 2011-06-08
Anticipated expiration: 2030-12-01
Also published as: CN102088557B

Abstract

A synchronous control system for a binocular vision device for a vehicle, comprising an image controller connected to each other, a No. 1 image sensor, a No. 2 image sensor, and a control circuit. The control circuit includes a No. 1 control circuit and a No. 2 control circuit. The No. 1 control circuit and the No. 2 control circuit both include a synchronous exposure signal stabilization control module connected to each other, a clamping diode and a capacitor. One end of the capacitor and the embedded diode is connected to the ground in parallel, the other end of the embedded diode is connected to the power supply, grounded through the resistor, and connected to the image controller through the resistor at the same time. The model of the synchronous exposure signal stabilization control module is 74LS14, embedded The model of the bit diode is BAV99. This design is not only simple in structure and short in configuration time, but also can be triggered synchronously and quickly, and is suitable for vehicles.

Description

A kind of synchronous control system of automobile-used binocular vision device

Technical field

The present invention relates to a kind of control system of binocular vision device, relate in particular to a kind of synchronous control system of automobile-used binocular vision device, specifically be applicable to the triggering simultaneously and rapidly of binocular camera shooting head in the automobile-used binocular vision device.

Background technology

In recent years, at the increasing gesture of vehicle collision traffic accident, development AEBS becomes an important approach day by day with the incidence of minimizing accident.AEBS utilizes transducer (as binocular camera shooting head, radar etc.) to obtain environment information, judge the risk that this car and front vehicles bump in conjunction with this vehicle travelling state and driver's response analysis again, thereby corresponding measure is assessed and taked to this car safe condition that travels, to alleviate or to avoid colliding the injury that causes.This shows that the binocular camera shooting head is one of AEBS system capital equipment of obtaining environment information, so it has crucial effects in the AEBS system.

In the binocular camera shooting head, the resolution sizes of imageing sensor, optical lens visual angle and binocular camera shooting head exposure consistency are determining distance, precision and the effect of AEBS system range finding jointly.Under the situation of having selected imageing sensor and optical lens, be all timings of image sensor resolutions size and optical lens visual angle, influencing factor just only is binocular camera shooting head exposure consistency, so-called binocular camera shooting head exposure consistency is meant that two cameras expose simultaneously, guarantee photographic images simultaneously, it is determining AEBS system range accuracy and effect, and the realization of this effect depends on the synchronous and rapid triggering of binocular camera shooting head.

The Chinese patent publication number is CN101431603Y, and the patent of invention that open day is on May 13rd, 2009 discloses a kind of multi-camera sync photography method, and this method specifically comprises: each SYN register value of each camera is arranged to identical initial value; Receive the capable field sync signal of each camera respectively, definition reference sync signal, and the capable field sync signal of the camera of record detection and the deviate of reference sync signal; Calculate according to deviate, and upgrade the SYN register value of camera according to result of calculation; The SYN register value of camera is adjusted to described initial value.Simultaneously, the checkout gear of a kind of multi-camera sync photography of this also corresponding proposition of invention.Though this invention can be by detecting and adjust a plurality of cameras realizing the effect of multi-camera sync photography, but it need be provided with a plurality of registers, not only complex structure, setup time are long, and response speed is slower, in addition, the bussing technique that this invention is taked on imageing sensor belongs to tame power technology, and transmission range is shorter, is not suitable for automobile-used.

Summary of the invention

The objective of the invention is to overcome the complex structure that exists in the prior art, setup time is long, response speed is slow, be not suitable for automobile-used defective and problem, provide a kind of simple in structure, setup time short, response speed very fast, be suitable for the synchronous control system of automobile-used automobile-used binocular vision device.

For realizing above purpose, technical solution of the present invention is: a kind of synchronous control system of automobile-used binocular vision device, comprise interconnective image controller, imageing sensor, No. two imageing sensors and control circuit, one end of described control circuit is connected with an imageing sensor, No. two imageing sensors, and the other end is connected with image controller; Described control circuit comprises a control circuit and No. two control circuits, control circuit comprises that an interconnective synchronous exposure signal stablizes control module, a clamped diode and an electric capacity, and No. two control circuits comprise that interconnective No. two synchronous exposure signals stablize control module, No. two clamped diodes and No. two electric capacity;

The output that a described synchronous exposure signal is stablized control module one end is connected with an imageing sensor, the connected mode of an input of the other end is: an input is through an end of an electric capacity, clamped diode ground connection in parallel, input is through power supply of another termination of a clamped diode, an input is successively through a resistance, No. two grounding through resistances, and No. one input is connected with image controller through a resistance, No. three resistance successively;

No. two outputs that described No. two synchronous exposure signals are stablized control module one end are connected with No. two imageing sensors, the connected mode of No. two inputs of the other end is: No. two inputs are through an end of No. two electric capacity, No. two clamped diodes ground connection in parallel, No. two inputs are through No. two power supplys of another termination of No. two clamped diodes, No. two inputs are successively through No. four resistance, No. five grounding through resistances, and No. two input is connected with image controller through No. four resistance, No. six resistance successively.

It is 74LS14 that a described synchronous exposure signal is stablized the model that control module and No. two synchronous exposure signals stablize control module, and the model of a clamped diode and No. two clamped diodes is BAV99.

The size of a described electric capacity is 0.1 μ F, and the size of a resistance is 10 kilo-ohms, and the size of No. two resistance is 40 kilo-ohms, and the size of No. three resistance is 10 kilo-ohms; The size of described No. two electric capacity is 0.1 μ F, and the size of No. four resistance is 10 kilo-ohms, and the size of No. five resistance is 40 kilo-ohms, and the size of No. six resistance is 10 kilo-ohms; A described power supply and No. two power supplys are 2.8V.

Compared with prior art, beneficial effect of the present invention is:

1, owing to comprises interconnective image controller, imageing sensor, No. two imageing sensors and control circuit in the synchronous control system of a kind of automobile-used binocular vision device of the present invention, this control circuit comprises a control circuit and No. two control circuits, the structure of a control circuit, No. two control circuits is identical, its main element is synchronous exposure signal and stablizes control module, clamped diode and electric capacity, not only simple in structure, be convenient to configuration, and can synchronous triggering, response time is very fast, thereby guarantees the consistency of binocular camera shooting head exposure.Therefore the present invention is not only simple in structure, setup time short, and can synchronous triggering, response speed is very fast.

2, because the control circuit in the synchronous control system of a kind of automobile-used binocular vision device of the present invention is stablized control module, clamped diode and electric capacity based on synchronous exposure signal, be aided with resistance and power supply again, integral body is arranged on the pcb board, and need use bus unlike prior art, thereby on the conforming basis of guaranteeing to expose, avoided the short limitation of transmission range, and then be convenient to install onboard.Therefore the present invention is suitable for automobile-used.

Description of drawings

Fig. 1 is a structural representation of the present invention.

Among the figure: 2, No. two imageing sensors 3 of 1, number imageing sensor of image controller, 5, numbers synchronous exposure signals of 4, numbers control circuits of control circuit are stablized control module 51,512, numbers clamped diodes 52 of 511, numbers inputs of an output, 54, No. two resistance 55 of 53, numbers resistance of an electric capacity, No. three

resistance

56,6, No. two synchronous exposure signals of No. two control circuits are stablized 61, No. two outputs 611 of control module, No. two

inputs

612,63, No. four resistance 64 of 62, No. two electric capacity of No. two clamped diodes, No. five

resistance

65,7, No. two power supplys 8 of 66, numbers power supplys of No. six resistance.

Embodiment

The present invention is further detailed explanation below in conjunction with description of drawings and embodiment

Referring to Fig. 1, a kind of synchronous control system of automobile-used binocular vision device, comprise interconnective image controller 1, imageing sensor 2, No. two imageing sensors 3 and control circuit 4, one end of described control circuit 4 and imageing sensor 2, No. two imageing sensors 3 are connected, and the other end is connected with image controller 1; Described control circuit 4 comprises a control circuit 5 and No. two control circuits 6, control circuit 5 comprises that an interconnective synchronous exposure signal stablizes control module 51, clamped

diode

52 and 53, No. two control circuits 6 of an electric capacity and comprise that interconnective No. two synchronous exposure signals stablize control module 61, No. two clamped diodes 62 and No. two electric capacity 63;

The output 511 that a described synchronous exposure signal is stablized control module 51 1 ends is connected with an imageing sensor 2, the connected mode of an input 512 of the other end is: input 512 is through the end ground connection in parallel of electric capacity 53, a clamped diode 52, input 512 is through power supply 7 of another termination of a clamped diode 52, input 512 is successively through resistance 54, No. two resistance 55 ground connection, and input 512 is connected with image controller 1 through resistance 54, No. three resistance 56 successively;

No. two outputs 611 of described No. two exposure control module 61 1 ends are connected with No. two imageing sensors 3, the connected mode of No. two inputs 612 of the other end is: No. two inputs 612 are through the end ground connection in parallel of No. two electric capacity 63, No. two clamped diodes 62, No. two inputs 612 are through No. two power supplys 8 of another termination of No. two clamped diodes 62, No. two inputs 612 are successively through No. four resistance 64, No. five resistance 65 ground connection, and No. two inputs 612 are connected with image controller 1 through No. four resistance 64, No. six resistance 66 successively.

It is 74LS14 that a described synchronous exposure signal is stablized the model that control module 51 and No. two synchronous exposure signals stablize control module 61, and the model of a clamped diode 52 and No. two clamped diodes 62 is BAV99.

The size of a described electric capacity 53 is 0.1 μ F, and the size of a resistance 54 is 10 kilo-ohms, and the size of No. two resistance 55 is 40 kilo-ohms, and the size of No. three resistance 56 is 10 kilo-ohms; The size of described No. two electric capacity 63 is 0.1 μ F, and the size of No. four resistance 64 is 10 kilo-ohms, and the size of No. five resistance 65 is 40 kilo-ohms, and the size of No. six resistance 66 is 10 kilo-ohms; A described power supply 7 and No. two power supplys 8 are 2.8V.

In the use, the control signal that image controller 1 sends is passed to imageing sensor 2, No. two imageing sensors 3 simultaneously by control circuit 5, No. two control circuits 6, in the transport process, because control circuit 5, No. two control circuits 6 have identical circuit design, this kind design not only can be guaranteed response speed faster, more can guarantee the synchronous triggering of two circuit, thereby guarantee the consistency of binocular camera shooting head exposure, and then improve the certainty of measurement and the effect of whole binocular vision device.

Therefore the present invention is not only simple in structure, setup time short, and can trigger, be suitable for automobile-used simultaneously and rapidly.

Claims

1. A synchronous control system of a binocular vision device for a vehicle, comprising an image controller (1), a No. 1 image sensor (2), a No. 2 image sensor (3) and a control circuit (4) connected to each other, the One end of the control circuit (4) is connected to No. 1 image sensor (2) and No. 2 image sensor (3), and the other end is connected to the image controller (1), characterized in that: the control circuit (4) includes The No. 1 control circuit (5) and the No. 2 control circuit (6), the No. 1 control circuit (5) includes the No. 1 synchronous exposure signal stabilization control module (51), the No. 1 clamping diode (52) and the No. 1 interconnected The No. 1 capacitor (53), the No. 2 control circuit (6) includes the No. 2 synchronous exposure signal stabilization control module (61), the No. 2 clamping diode (62) and the No. 2 capacitor (63) connected to each other;

The No. 1 output port (511) at one end of the No. 1 synchronous exposure signal stabilization control module (51) is connected to the No. 1 image sensor (2), and the No. 1 input port (512) at the other end is connected in the following way: No. 1 The input terminal (512) is connected to the ground in parallel through the No. 1 capacitor (53) and one end of the No. 1 clamping diode (52), and the No. 1 input terminal (512) is connected to the other end of the No. 1 clamping diode (52). The No. 1 power supply (7), the No. 1 input terminal (512) are grounded through the No. 1 resistor (54) and the No. (56) is connected with the image controller (1);

The No. 2 output terminal (611) at one end of the No. 2 synchronous exposure signal stabilization control module (61) is connected to the No. 2 image sensor (3), and the No. 2 input terminal (612) at the other end is connected in the following way: No. 2 The input terminal (612) is connected to the ground in parallel through the No. 2 capacitor (63) and one end of the No. The No. 2 power supply (8), the No. 2 input terminal (612) are grounded through the No. 4 resistor (64) and the No. 5 resistor (65) in turn, and the No. (66) is connected with the image controller (1).

2. A synchronous control system for a vehicle binocular vision device according to claim 1, characterized in that: the No. 1 synchronous exposure signal stabilization control module (51) and the No. 2 synchronous exposure signal stabilization control module (61 ) model is 74LS14, the model of the first clamping diode (52) and the second clamping diode (62) is BAV99.

3. A synchronous control system for a vehicle binocular vision device according to claim 1 or 2, characterized in that: the size of the No. 1 capacitor (53) is 0.1 μF, and the size of the No. 1 resistor (54) is 10 kΩ, the size of the second resistor (55) is 40 kΩ, the size of the third resistor (56) is 10 kΩ; the size of the second capacitor (63) is 0.1 μF, and the size of the fourth resistor (64 ) is 10 kohms, the fifth resistor (65) is 40 kohms, and the sixth resistor (66) is 10 kohms; the first power supply (7) and the second power supply (8) are both is 2.8V.