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1. System application background and significance
The current remote information management system is often only the management of administrative and technical documents, and cannot obtain real-time construction information, let alone a comprehensive, timely and accurate grasp of the construction party’s information and construction personnel. This led to many accidents. For this reason, governments at all levels attach great importance to the safety production of engineering construction and adopt a series of measures to continuously strengthen the safety production work. How to change the current management mode of the backward safety management of the tunnel construction process and realize the modernization, informatization, and intelligence of management has become an important topic for managers.
Therefore, the use of advanced management methods such as disaster prevention, accident rescue, and electronic information technology is an inevitable choice for the safety management of tunnel construction. In response to the above situation, Suzhou Mulan Electronic Technology Co., Ltd. proposed a “Tunnel Personnel Attendance and Positioning System Solution” and provided a brand-new safety management concept for the safety management of tunnel construction.
2. Working principle
Schematic diagram of working principle
Construction personnel or staff carry 2.4G activeelectronic label, Generally installed on the belt or helmet of the constructor. The card has two-way and one-way: the one-way card can only send its own ID number. The two-way card can not only send information to the monitoring center, but the monitoring center can also send information to each construction worker. At the same time, the two-way card has a button and indicator light. , You can press the emergency button to call for help in case of danger. If the general project is mainly based on attendance, it is recommended to use a single card; if the system is mainly based on attendance and positioning, it is recommended to use a two-way card. For example: when there is a special situation in the tunnel, the construction staff only needs to press a button, and the monitoring center will sound an alarm. When something happens in the monitoring center, the monitoring center can send a signal to each of the construction workers, or it can send a group message to indicate it through the indicator light. No matter it is inside or outside the tunnel, a card reader needs to be installed. At least 2 units are required in one system. If it’s positioning, you need more. The specific installation should be carried out according to the conditions of the tunnel. The general principle is to install one every 150 meters, and it can also be installed in corners and some areas that require special monitoring.
The positioning principle of this system is regional positioning, which is based on the position of each reader. Therefore, the accuracy of positioning depends on the recognition distance of the reader. The distance of the reader can be adjusted by software, so the positioning is considered The accuracy should also consider the distance of the card reading and the overall cost of the system. That is to say, the higher the positioning accuracy, the closer the card reading distance is, the higher the cost. Please note!!!!!
3. Recommended equipment
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