Attendance and location management system for plant personnel and vehicles
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1. System background
In recent years, some flammable and explosive plant areas are prone to safety accidents such as fires and explosions. Although there are obvious warning signs in the factory, people often ignore these warnings and still go their own way and ignore them. Some places in the factory are not allowed to enter and stay at will, but people have time to be curious and sneak in when people are away. There are also some management and responsible personnel who cannot go to work and make inspections on time. Bring hidden dangers to safety accidents. How to strengthen the preventive measures for safe production, how to correctly handle the relationship between safety and production, safety and benefit, how to accurately and real-time perform the safety inspection function of the flammable and explosive industry, and ensure the efficient operation of emergency rescue and safety rescue, is placed in the country In front of the competent departments and leaders at all levels. At the same time, how to change the current flammable and explosive enterprise’s backward management mode of on-site workers, and how to realize management modernization and informatization have also become the concerns of all flammable and explosive enterprises. We believe that it is imperative to establish informatization and intelligentization with the main objectives of disaster prevention, accident rescue, and electronic information management. To this end, we have introduced a location system for factory personnel and vehicles.
1.2 System overview
In terms of factory and vehicle attendance, the company previously used ordinary IC/ID cards for attendance, and to a certain extent, it also realized the attendance system. However, when the company has a large number of people, employees line up to swipe their cards every day to and from get off work, and they have to go to the card. Swiping the card in front of the machine wasted a lot of time. And our long-distance recognition system is to solve this problem; in terms of positioning, this system is a continuation of the factory’s traditional management methods, and it is very convenient to find out the movement trajectory and stay time of someone within the recognition range of the factory’s card reader .
2. System design principles
2.1 Reasonable system layout
In the program design, the rationality of the system architecture and equipment selection is particularly important. For example, there are many and scattered monitoring base stations for plant personnel and vehicle positioning systems. If the transmission system is all wired, not only the construction is difficult, the structure is inflexible, but also the later maintenance is troublesome. If all are wireless, the cost of testing is higher. If the wired + wireless method is adopted, that is, the wired method is adopted for the main line that is convenient for construction, and the branch line that is not suitable for construction is adopted for wireless transmission, which is a more reasonable choice.
2.2 Meet the relevant industry standards of the country and all levels of management
The safety monitoring system complies with relevant technical standards, and the equipment has been uniformly planned to meet the national safety requirements for flammable and explosive areas, and can meet the needs of comprehensive management of large factories.
2.3 Utilize existing communication facilities
The construction of security monitoring fully considers the use of existing communication facilities and the policy of not repeating construction. For the existing communication networks in the factory, such as local area networks, wireless networks are fully utilized, and part of the management and maintenance work is handed over to professional network administrators, which saves costs.
2.4 Interface issues with other information systems
The plant personnel, vehicle entry and exit location management system platform retains the data interface with other information systems: such as the enterprise’s ERP information management system, etc., which can ensure that other systems are successfully connected to the system platform, open the corresponding application system, and retrieve the monitoring interface and corresponding data .
2.5 The principle of ease of maintenance
This is for the actual needs of the system in use. After the implementation of the system project is completed and delivered to use, it should be convenient for all kinds of daily maintenance work, and can easily carry out software reconfiguration, system self-check and recovery, hardware spare parts replacement and software system upgrade.
Three, system design plan
This system is divided into two parts: attendance and positioning, we will introduce attendance and positioning separately
3.1 Working principle of attendance department:
Workers and vehicles carry long-distance identification cards, which can be identified about 10 meters away from the card reader, and the card reader sends the received identification card information to the server through the network. The software records when the workers enter the factory and when they leave the factory. So as to facilitate the effective realization of the attendance function.
3.2 Positioning management system
System working principle
First, place several card readers at various intersections, main passages and key workshops in the factory. The specific number and installation location are determined according to the actual working conditions on site and the functional requirements to be realized, and they are connected to the computer of the control center through the network. . At the same time, an electronic tag will be distributed to every staff member, fixed vehicles, visitors and vehicles temporarily entering the factory area. When the personnel enter the factory area, they can pass or approach any card reader placed in the factory area immediately. It will sense and upload the corresponding electronic tag number, card reader’s own number and time to the computer in the monitoring center, and the computer can immediately follow the specific information (corresponding to the reader’s installation location, site conditions, and the historical status of the tag) And time) to determine the current status of a specific person (location, whether in the factory area, stay time in the factory area, stay time in a specific area), statistical information (number of people online) and triggers of the entire factory area and a specific area Incidents (such as someone entering or leaving the factory area, someone staying in the factory area for overtime, someone not walking according to a pre-designated route, someone going to an area that shouldn’t be going), and display these information on the computer display at the same time Screen and backup to the database. The administrator can click on a location in the factory area or select the entire factory area according to the distribution diagram on the computer screen, and the computer will sort and display the information of all personnel in this area. The administrator can also select a time period (a certain day or a certain day) and a report type (attendance report, entry and exit record report of a specific area, personnel history track tracking report, warning report for violation of predetermined security policies) to obtain The required report. In addition, once an accident occurs in the factory, the personnel at the accident site can be found immediately based on the personnel distribution information in the computer, and then special detectors can be used to further determine the location of the personnel at the accident site to help rescuers rescue the trapped people accurately and quickly . The handling of temporary visitors is basically the same as that of fixed personnel, except that additional information is added to facilitate the cancellation and re-authorization of the electronic tag. The management of vehicles and other equipment is roughly the same as that of personnel.
Fourth, the functional characteristics and advantages of the system
4.1 System features
Contactless
electronic labelIt communicates with the card reader wirelessly, and the farthest recognition distance can reach 80m (adjustable distance). Therefore, personnel only need to carry the electronic tag and pass near the card reader without getting off the car and approaching the card reader. Swipe.
Penetrability
The wireless signal can penetrate obstacles such as paper, clothes, plastic, etc., so even if the electronic tag is not in the visible range of the card reader (such as in a clothes pocket, in a car), it can work normally.
safety
The data of the electronic tag is sent to the card reader in the form of an electronic signal, so only a specific device can receive the data, and only the authorized administrator can view the data, ensuring the security of the data.
High-speed recognition
The card reader recognizes electronic tags at a very fast speed (200 can be recognized at the same time), so the recognition efficiency is very high for the situation where the moving speed is very fast or there are many people passing by at the same time.
High accuracy
Basically, a 100% recognition rate can be guaranteed.
Low power consumption
The electronic tag adopts ultra-low power consumption design, and only its built-in battery can maintain normal operation for 3 or 5 years without frequent battery replacement. The card reader is also designed with low power consumption, and the peak power does not exceed 1W.
Small size and light weight
The electronic label adopts microchip and patch technology, which is small in size, light in weight, easy to carry, does not affect normal work and is easy to keep.
Anti-pollution, suitable for various environmental conditions
The electronic label adopts a plastic shell, which is insensitive to common corrosives such as water, paint, stickers, chemicals, and electromagnetic interference. It is resistant to low and high temperatures, adapts to various working environments, and does not cause any pollution to the environment.
4.2 System advantages
Highly automated
The system can automatically monitor the time, location and other information of personnel or vehicles passing through the monitoring point in the factory, analyze and upload it to the network server and make corresponding actions. The entire process is fully automated without human intervention.
Easy to operate
The administrator only needs to enter the information of the personnel or the vehicle and the number of the electronic tag into the system to start using it without other operations. The personnel holding the electronic tag only need to carry the electronic tag without the need to swipe the card or register, which is completely unnecessary. It affects normal work and is very convenient to use.
Without any client software, the administrator only needs to log in to the website with a browser to remotely query information and perform management operations.
efficient
With the help of computer information processing technology, the system can register a large number of people, vehicles, and other information in a short period of time. The administrator can also specify conditions to obtain a variety of complete report materials, display and print them, for the top management Provide a basis for managers’ inquiries and decisions. Compared with the previous manual registration and statistical methods, the accuracy, reliability and efficiency have been greatly improved.
Information is timely and accurate
The information of the system is updated in real time and can be guaranteed to be accurate. Users can get the latest information as long as they log on to the website.
The system is stable, safe and reliable
The design of the system fully considers the stability and reliability. The card reader adopts a waterproof and explosion-proof housing, and the internal circuit is stable and reliable, and can work continuously in harsh environments. The equipment adopts wall-mounted installation, so there is no need to carry out tunnel construction on site. The entire system also uses power backup to ensure 7×24 hours of normal operation in an unstable power grid environment.
Intelligent fault detection
Including failure equipment monitoring, communication link failure monitoring and other intelligent monitoring functions, for failed equipment, only simple replacement of equipment can be restored to normal.Can query the attendance location information of employees, departments and cadres, and can output various information reports as required
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