China Construction Third Bureau Tunnel Access Control Positioning Time Attendance System
chrispeng [ad_1]
1. System significance
1. By monitoring the number of people entering the hole and the number of people entering the working face, curb over-production.
2. By monitoring the personnel entering the dangerous area, timely discover the personnel who strayed into the dangerous area to prevent casualties.
3. Through the monitoring of personnel exiting/entering the tunnel, the overtime work and those who did not exit the tunnel can be found in time, so that timely measures can be taken to prevent accidents.
4. By monitoring the entry operator, exit/entrance and route, we can timely grasp whether the entry staff exit/enter the tunnel according to the regulations, and whether they arrive at the designated operation site according to the regulations, etc.
5. Through the system, it is possible to know the total number of people entering the cave, the distribution area, and the basic situation of the personnel at the time of the accident in time. After the accident, the approximate location of the trapped persons and corpses can be judged through the software’s historical trajectory for timely search, rescue and cleanup.
2. System architecture and program description
Haotian Technology Smart Tunnel Staff Attendance and Positioning System integrates the functions of tunnel construction staff’s attendance, regional positioning, safety early warning, post-disaster first aid, daily management and other functions. It is also a domestically leading technology, stable operation, and professionally designed tunnel construction site monitoring system. It enables management personnel to grasp the distribution status of personnel and equipment on the construction site and the movement trajectory of each personnel and equipment at any time, facilitating more reasonable scheduling management and safety monitoring management. When an accident occurs, rescuers can quickly understand the location of relevant personnel based on the data and graphics provided by the system, and take corresponding rescue measures in time to improve the efficiency of emergency rescue work. This scientific and technological achievement was implemented in the tunnel construction of the Third Bureau of China Construction, which promoted the safe production and daily management of tunnel construction to a new level.
Program description
Attendance system: Install 1 set of integrated reader (2.45G+125K) at the entrance of each construction tunnel. Lead out two active antennas, install a coil on the outside and inside of the tunnel entrance, judge the entry and exit of the personnel according to the uploaded data, when the construction personnel enter and exit, and how many operators are in the tunnel can be reflected in the system software , And reflected on the big screen, so that the attendance situation is clear at a glance. The construction personnel wear the system attendance card on the inside of the helmet, which can realize automatic attendance without actively swiping the card, which is convenient, labor-saving and highly accurate.
Positioning system: Install a reader at each position that needs to be positioned. Install one at a distance of 30-80 meters. The identification area of the reader is determined by the algorithm or the field strength value. The construction personnel only need to wear the system attendance card inside the helmet without actively swiping the card. Within the effective identification range of each card reader, the construction personnel are located and identified according to the identified personnel identification cards, so that the management personnel can grasp the specific conditions of the construction site in time in the monitoring room.
Three system advantages
Low power consumption: Due to the low transmission rate of ZigBee, the transmission power is only 1mW, so ZigBee devices are very power-saving.
The label can be reused: the label information can be erased and written, and the service life is up to 10 years.
The label can alarm when the label falls off: the temperature measurement label can detect the body temperature of the person. When the person deliberately or unintentionally removes the label, the temperature measurement label cannot detect the normal human body temperature, and the system will automatically alarm.
Recognition distance can be adjusted: Zigbee’s card reader has a recognition distance of up to 1500M, and each reader can read 200 tags at the same time, which saves users a lot of cost. According to customer requirements, it can be adjusted to the ideal Within the recognition distance.
The device can be moved: the card reader device can be moved reasonably according to the needs of the customer, along with the progress of the project, and only arranged in the area that needs to be monitored, which saves the customer a lot of cost while ensuring that the tag is read.
System sharing: According to customer needs, the access control system in the tunnel, the personnel area positioning system and the outdoor personnel area positioning system can be combined, and integrated with the existing system for common management. Reduce the trouble for customers to operate another system.
Four system functions
Information entry management: Information entry management includes records of basic staff information, such as: name, gender, date of birth, department, position, photo, and whether there is fault, etc.
Personnel entry and exit tunnel management: According to the time when the card reader reads the tag, the system can record and record the staff’s commuting time.
Personnel information query: Personnel information query includes basic personnel information query and working hours query.
Alarm function: In case of special circumstances, such as safety accidents or personnel leaving the work area during working hours, the system will issue an alarm at the first time to inform the manager.
System function management: The system completes the above five functions through the cooperation of hardware and software. It can effectively monitor the personnel in real time, realize the information management of the personnel, and improve the management efficiency.
[ad_2]
