CN201473235U - Stereo vision safety alarm system for tower crane - Google Patents

Abstract

The utility model relates to a stereoscopic visual security alarming system used for a tower crane, which is characterized in that the alarming system mainly comprises two cameras (1), a video signal processing and alarming computer (2) and a sound and light alarm (3), wherein the two cameras (1) are arranged at the far end of a suspension arm (4) of the crane, the video signal output ends of the cameras (1) are both connected with the video signal input end of the video signal processing and alarming computer (2) arranged in a control cabin of the crane, and the output end of the video signal processing and alarming computer (2) is connected with the sound and light alarm (3). The utility model has the advantages of high safety factor and intelligent degree, simple structure and easy realization.

Description

Stereo vision safety alarm system for tower crane

technical field

The utility model relates to a safe operation system for hoisting equipment, in particular to a safe operation system for cranes which provides safety alarms by means of video, in particular to a three-dimensional vision safety alarm system for tower cranes.

Background technique

As we all know, among the many construction safety accidents in our country, the proportion of hoisting machinery accidents exceeds 25%, which has always been one of the key governance directions. According to the statistics of the Ministry of Construction and the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China: in 2006, the number of construction hoisting machinery accidents in the country increased by 76.5% compared with 2005; the number of major accidents increased by 66%; the number of deaths increased by 61%; the direct economic loss increased by 8.6%. In 2007, compared with the same period in 2006, the number of heavy casualties increased by 20%. The frequent occurrence of crane safety accidents has become a persistent disease in the construction industry. According to the follow-up survey of more than 1,000 cranes, 80% of the accidents were caused by violations of regulations and overloading. of. At present, some safety monitoring systems for tower cranes are being developed and used. These systems mainly monitor the lifting capacity, height, amplitude and wind speed of the tower crane, as well as the working status of the luffing speed, lifting and lifting speed, slewing speed and walking speed. However, due to factors such as the observation position of the cab and the spatial attitude of the tower crane, the driver of the actual tower crane may make a mistake in judging the working space of the crane, which may cause a collision accident with other objects in the building environment. In addition, in a large-scale construction environment, multiple cranes are often used to operate at the same time, so there is a greater possibility of collisions between tower cranes or buildings. For this type of accident, the safety monitoring system of the existing tower crane cannot realize the alarm.

Contents of the invention

The purpose of this utility model is to aim at the existing tower crane, because the distance between the driver and the far end of the boom is relatively large, it is easy to make a mistake in judgment depending on human vision and lead to collision with the wall, especially when there are multiple cranes working at the same time However, when the distance between each other is seriously insufficient, it is easy to collide with each other and cause frequent safety accidents. Design a technology that uses cameras and image positioning processing technology, which is equivalent to extending the position of the human eye, and can sense the position of the tower crane in advance. And when it is in a dangerous position, it is a three-dimensional visual safety alarm system for tower cranes that send out sound and light alarms in time.

The technical scheme of the utility model is:

A stereoscopic vision safety alarm system for a tower crane is characterized in that it is mainly composed of two cameras 1, a computer 2 for video signal processing and alarming, and an audible and visual alarm 3. The two cameras 1 are installed on the crane At the far end of the arm 4, the video signal output end of the camera 1 is connected with the video signal input end of the video signal processing and alarm computer 2 installed in the crane control room, and the output of the video signal processing and alarm computer 2 is connected with the sound and light Alarm 3 is connected.

The beneficial effects of the utility model:

1. This utility model introduces the stereoscopic vision system of the robot into the traditional tower crane, thereby improving the intelligence and safety factor of the tower crane. When the boom enters the dangerous area, the sound and light alarm will make a sound Heguang reminds the operator to operate carefully or turn around in time to avoid collisions.

2. The utility model can also effectively reduce the possibility of collisions when multiple cranes operate at the same time, and improve the operating efficiency of the construction site.

3. The utility model can enable the crane driver to obtain multi-view spatial information in the control room through the display of video images, thereby improving the accuracy of its operation.

4. The utility model has simple structure, low cost, and is very convenient to install and use.

Description of drawings

Fig. 1 is a schematic block diagram of the composition and structure of the stereoscopic vision safety alarm system of the present invention.

Fig. 2 is a working principle block diagram of the stereo vision security system of the present invention.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

As shown in Figure 1.

A stereoscopic vision safety alarm system for a tower crane, which is mainly composed of two cameras 1, a computer 2 for video signal processing and alarming, and an audible and visual alarm 3. The two cameras 1 should rotate synchronously and have good rainproof , sunscreen and lightning protection functions, can be installed on the same airtight support, the pan-tilt control can be controlled by the computer 2, and can also be linked with the crane operating handle in the cab, and the two cameras 1 are installed on the crane arm 4 At the far end, the video signal output ends of the camera 1 are all connected to the video signal input ends of the video signal processing and alarm computer 2 installed in the crane control room, and the output of the video signal processing and alarm computer 2 is connected to the sound and light alarm 3 (It can be directly purchased from the market or designed and manufactured with reference to relevant textbooks or manuals). As shown in Figure 1.

The working principle of the utility model is:

The working principle of the video security alarm system for tower cranes is to collect stereo vision images in real time through the binocular pan-tilt stereo camera with three rotating pairs installed on the boom of the tower crane when the tower crane is working, and Through the computer stereoscopic vision analysis system (which can be realized by using existing image processing software, or can be compiled by referring to the principle of attached drawing 2) to generate the information of the stereoscopic space environment, so as to judge the possible spatial interference situation in time and timely Alerts tower crane drivers to avoid possible tower crane collisions.

The software flowchart of the computer stereo vision analysis system is shown in Figure 2.

The parts not involved in the utility model are all the same as the prior art or can be realized by adopting the prior art.

Claims (1)

1. tower crane type hoisting crane stereovision security alerting system, it is characterized in that it is mainly handled by two pick up cameras (1), vision signal and warning is formed with computing machine (2) and combined aural and visual alarm (3), described two pick up cameras (1) are installed in the far-end of crane arm (4), vision signal processing that the VT of pick up camera (1) is all interior with being installed in crane cab and warning link to each other with the video signal input terminal of computing machine (2), and vision signal is handled and reported to the police and use the output of computing machine (2) to link to each other with combined aural and visual alarm (3).

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