Fourth, system design principles: Seven, technical indicators:
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Crane operation is a common practice in the production process of metallurgical enterprises, and it is also a high-risk operation. The high risk of lifting machinery is determined by its special movement form and operating characteristics. One is the high potential energy of hanging objects; the second is the multi-dimensionality of sports; the third is the scope of work; the fourth is the collective nature of operations: Fifth, the complexity of the operating conditions. In short, there are many dangerous factors in the special handling mode of hoisting and the special structure and movement form of lifting machinery. The safety issue is particularly prominent. Any unsafe condition on the job site can result in accidents such as falling, striking, squeezing, and tipping. According to the statistical analysis of the accidents and deaths occurring throughout the country, the number of casualties caused by crane accidents accounts for about 10% of all deaths due to work. According to Angang's accident data for the past 37 years, 129 people were killed in lifting operations, which accounted for 12.4% of all work-related deaths. The annual rate of accidents per hoisting machine was 0.2, resulting in economic losses of 4.15 million yuan, including bridge crane accidents. The incidence rate is 22%. According to the analysis of accidents and deaths of the main production units of Wuhan Iron and Steel Company in the past decade, the number of deaths and deaths in the crane accidents accounted for about 20% of the total deaths due to work.
Thousands of cranes used in the production of Wuhan Iron and Steel Company have some problems when they are put into use. For example, the position of the cab is inconsistent with the actual operation of the crane. When the driver operates, there is a certain blind area of ​​sight when the crane is running. The driver's operation can only pay attention to the front, so narrow angle of view is not easy to find the distance between the right and left cranes and cranes in time, which can easily lead to collision between the two vehicles, especially when another vehicle is hit by a major accident.
In response to the above-mentioned problem of lifting appliances, the company proposes the following solution: installation of anti-collision system
Second, the company profile Wuhan New Age Automation Control Technology Co., Ltd. was established in 2004, is a professional engaged in monitoring system integration, as well as environmental protection equipment installation, integrated wiring and other high-tech companies. The company is composed of a group of graduates of universities and computer colleges with advanced thinking, outstanding technology, and strict discipline, with strong technical force, advanced operating mechanism, and vigorous vitality. Based on the tenet of quality, technology, integrity and responsibility, we serve the society and serve our customers. Adhering to the principle of “technological innovationâ€, “time competition†and “customer satisfactionâ€, we maintain a high driving force in the digital environment with rapid changes in the environment. Faced with the challenge of the new century, we will study hard with the spirit of unremitting efforts and seeking truth from facts and will work hard with our professional attitude to create a profit and value for our customers.
Wuhan New Era Automation Control Technology Co., Ltd. mainly deals with the most professional anti-collision system in China. It has dozens of products with different specifications. They are based on practical performance and are used in mutual cooperation to fully meet the technology, quality, and anti-collision The demand for prices. SICK as a professional anti-collision sensor manufacturer, its laser emission device is entirely made in Germany, and its movements are all produced with international advanced standards.
High quality is a prerequisite for customers' trust. "Quality" is the most fundamental commitment to our customers. We also focus on the "value" of our customers, provide the products our customers need, provide the fastest delivery time, and strive to create the highest added value for our customers. Service quality that exceeds customer needs: Customer satisfaction is the basic requirement for business operations. We do not use this as our goal. We must not only meet the needs and expectations of our customers, but also provide services that will “touch†our customers in the future. We will continue to improve the quality of our services and form a cross-organizational "co-creation" team with our customers. We will be customer-centric and closely integrated with our customers to jointly promote industrial prosperity and create market value.
It is hoped that in the future, we, together with friends from all walks of life, will join hands to develop a newer and broader information world with a strong wave of information technology.
Third, the design basis
1. "Safety Monitoring System Requirements"
2. GA/T70-1994 "Measures for the preparation of budgets for safety precautions"
3. HYD41-01-1999 "Electrical Engineering Construction Budget Calculation Method Electronic Equipment Installation Engineering Quota" and "Electrical Engineering Construction Budget Quota"
4. GA/T74-2000 "General Graphics Symbols for Security Systems"
5. GA/T75-1994 Safety Program Procedures and Requirements
6. GA16796-1994 Safety Requirements and Experimental Methods for Security Alarm Equipment
7. GA308-2001 "Safety Prevention System Acceptance Rules"
8. GA/T 269-2001 Black and White Video Intercom System
9. GA/T 368-2001 Technical Requirements for Intrusion Alarm System
10. GA/T 394-2002 Technical Specifications for Entry and Exit Control System
1. People-oriented “human†is the main body of enterprise management. The system design should closely revolve around people’s actual needs, and be based on the principles of practicality, simplicity, economy, and security. At the same time, they should take care of the needs of different job levels and different departments to meet the needs of enterprise management. Specific use features.
2. Applicability Nowadays, with rapid development of science and technology, the technologies and products that can be applied to collision avoidance systems are endless. The systems and products used in the project should enable users to receive tangible benefits and meet the needs of recent use and long-term development. In a variety of ways to achieve, choose the most economical and feasible way.
3. The advanced system design and product selection should have certain technological advancement when it is put into use, but it is not blindly pursuing new technologies that are not yet mature or impractical new features to fully protect the investment of users.
4. The design of the reliability system should have high reliability, and ensure the accuracy, integrity and consistency of the data after the system failure or the interruption of the accident, and have the function of quick recovery.
5. The feasibility of implementation is based on the existing mature products. It also takes into account the current status of the surrounding information environment and the development trend of the technology. It also considers the requirements of the centralized management of administrative departments to make the design of the project feasible.
6. Standardization, open standardization, and openness are the inevitable trends in the development of information technology. In the possible conditions of punctuality, the products used in the design are as standard as possible, have good openness, and follow internationally accepted communication protocols. The application software uses commercially-available general-purpose software as much as possible to reduce the secondary development workload and facilitate future use and maintenance.
Optimized design, reasonable cost, beautiful appearance, high cost performance and low maintenance costs. Make full use of existing equipment resources to avoid wastage.
Fifth, the design plan:
By using a laser distance detection sensor manufactured by SICK, Germany, as a basic detection unit, the distance between the object and the object is measured using the principle of laser reflection distance measurement. Two sensors are installed on each vehicle (detecting the distance between the two sides) and are controlled by a microcomputer controller: when the distance between the vehicle and the vehicle reaches within 16 meters, the microcomputer controls the voice alarm “Please note, be careful about crashes†and the light display (left and right Lights are shown, the left light indicates that the distance to the left reaches the warning line, and the right light indicates that the distance to the right has reached the warning line.) Tip The operator noticed that when the distance between driving and driving reached 6 meters, the microcomputer controlled the vehicle to stop automatically and control voice at the same time. The alarm alarm “reach the limit distance, please brake†can prompt the operator to brake in time. After 30 seconds, the operator can continue to operate.
After the safety monitoring system is established, it will greatly increase the operating efficiency of the operators, reduce the fatigue operation and misoperation of the operators, and make the safety management of vehicles to a new level. It will also play an active role in other work within the factory. Promote and promote the role.
Sixth, system characteristic:
* Programming with a microcomputer controller to achieve sensor signal acquisition, data processing, logic judgments and signal output control.
* Programmable sensor parameter settings are flexible and easy to operate.
* The use of photoelectric technology, long service life, fast response and high reliability.
* No mechanical wear, the physical location of the limit is accurate, no up and down offset, good stability.
* Sensor output digital signal, strong anti-interference.
* With human voice prompts and light display alarms.
* Measuring range: 0~5 meters
* Detection distance: 0.2~20 meters
* Control response time: 100ms
* Sound and light alarm response time: 200ms
*Working environment temperature: -20°C~+55°C
* Operating voltage: ~220V±20%
Eight, the requirements of the driver's operating room facilities
A. Environmental conditions:
1, temperature -20 ~ +55 degrees Celsius, humidity 30% -60%, indoor ventilation.
2, indoor lighting should have enough brightness.
3, the system design power supply is 220V ± 20%.
B. Power requirements:
Use the AC200V, 50Hz power supply in the overhead crane room and add the air switch to the power supply.
C. Outgoing requirements Two slots are made in the concealed part of the monitoring room. The one-slot slot houses the power cable and the one-slot slot contains the control cable.
D. Grounding Requirements The grounding point should be provided in the crane operating room and grounded separately; the grounding resistance should be less than 4 ohms; the integrated grounding; and the grounding resistance should be less than 1 ohm.
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Efficiency up to 93%
Anti-collision voice alarm system
I. Introduction: