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System innovation and advancement
When RFID technology is applied to the coal industry, a few domestic manufacturers have launched some products, but most of them are access control and attendance-type personnel management systems such as personnel attendance positioning. The access control system can only record personnel passing information, realize simple attendance functions, and cannot realize personnel real-time tracking and precise positioning. The functions of these products are basically similar, except that the recognition range of some substations ranges from ten meters to tens of meters, and the recognition range of some substations is up to hundreds of meters; some have a few recognition targets, and some have increased the number of recognition targets to a dozen. Piece.
Their main shortcomings are:
In various complex terrain conditions such as fork roads, bends, or narrow and curved working surfaces, the signal is blocked, uneven, and has blind areas, and the signal is attenuated severely after being blocked by people, equipment, walls, corners, etc.
Due to the small identification range of substations, if full coverage of the signal is required, the number of substations required is extremely large and the cost is huge; at the same time, the information of too many substations and equipment cannot be transmitted in time due to bandwidth. Therefore, the above-mentioned system can only display the information recorded by some people passing the KJF82 mining personnel positioning substation at a certain time, and cannot display the accurate position information of all underground personnel at the current time in real time. It can only be called “path”. Go through the recording system”.
The substations with a small recognition area in the above products are only for access control and cannot be located; substations with a large recognition area have poor positioning accuracy and cannot grasp the dynamic information of each worker and each device with electronic tags in the mine at the current moment and its status. The accurate location distribution of underground mines, if the signal cannot be fully covered, cannot achieve real-time personnel tracking and precise positioning. It is still access control, so it can only be regarded as an access control system with a larger monitoring range, rather than a real personnel positioning system.
Beijing Tianyi Zhonghe Technology Development Co., Ltd. conducts thorough research on market conditions. When developing and designing products, R&D personnel try to apply the most advanced technology, so that the performance and functions of the product reach the international leading level; It also fully considers the feasibility, cost, efficiency, quality and other aspects of product production; considers the environment, characteristics, special requirements, and convenience of operation and maintenance of the product application. The KJ133 mine personnel positioning safety management system adopts high-end technology in the field of radio frequency identification and advanced computer communication technology, has superior performance, and has the following characteristics:
Full mine, full coverage, real-time precise positioning and wireless paging system for all employees
Full coverage of signals under any terrain conditions, uniform signal coverage and no obstruction
Real-time personnel positioning and tracking, regional personnel distribution statistics
Original positioning method, large coverage area, high positioning accuracy
Personnel two-way wireless paging, real-time information transmission
Advanced fiber optic cable/mining cable hybrid network structure, flexible networking and large system capacity
Networked information management realizes a brand-new personnel safety management model
Patented products, independent innovation, leading technology
Main technical indicators of system products
KJ133Type mine personnel positioning safety management system
Central control computer system and KJF82 mine personnel positioning substation
The capacity of KJF82 mining personnel positioning substation: 1 data communication interface can connect 32 KJF82 mining personnel positioning substations, and the number of substations can be expanded to 128.
Transmission distance: not less than 10Km, up to 100Km or more when using optical cable.
Transmission rate: 1200bps, 2400bps, 4800bps, 9600bps are optional, up to 2Mbps when using optical cable.
Transmission error rate: less than 10-6
Inspection cycle: less than 30s
Support fiber/cable hybrid network.
KJF82 type mine personnel positioning sub-station and KGE39 type mine personnel positioning radio frequency card
Recognition distance: one direction>250m, two directions>500m, three directions>750m
Recognition quantity: 1 KJF82 type mine personnel positioning substation can simultaneously identify the number of radio frequency cards> 200
KJJ52Type data communication interface (KJJ52)
Protection level: not less than IP20
Working voltage: 220VAC
Equipped with optical fiber and RS485 dual ports
KJF82Type mine personnel positioning substation (KJF82)
Protection level: not less than IP54
Power supply type: explosion-proof and intrinsically safe uninterruptible power supply for mining
Power supply voltage: 127VAC or 660VAC
Support two communication modes: optical fiber/RS485
Built-in optical relay/RS485 relay
KGE39Type mine personnel positioning radio frequency card (KGE39)
Protection level: not less than IP54
Support two-way communication
Wireless paging
KGE41Type mine radio frequency locator (KGE41)
Protection level: not less than IP54
Positioning accuracy: standard positioning accuracy ±25m; up to ±10m
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