CN103982240A - Coal mine personnel positioning and wireless communication integral system - Google Patents

Abstract

The invention proposes a mine personnel positioning and wireless communication integrated system, which belongs to the field of underground communication and monitoring in coal mines, including a wireless base station based on WIFI, a mine-used WIFI intrinsically safe mobile phone, an RFID radio frequency card and a GIS information system computer; the RFID radio frequency card is installed in the On the roadway wall in the key area of the mine; the WIFI-based wireless base station is installed on the underground roadway wall, and connected to the underground industrial Ethernet ring network to connect to the server on the mine; the mine WIFI mobile phone has a built-in RFID radio frequency identification device for receiving RFID radio frequency card information , and send the received data to the WIFI-based wireless base station, and then transmit it to the GIS information system computer on the well via Ethernet; it not only has the function of a WIFI-based wireless communication system, but also realizes high-precision personnel positioning in key areas, The overall cost is also much lower than the sum of existing WIFI wireless communication systems and personnel positioning systems.

Description

A Mine Personnel Positioning and Wireless Communication Integrated System

technical field

The invention relates to a communication and monitoring system, in particular to a comprehensive mine personnel positioning and wireless communication system, which belongs to the field of underground communication and monitoring in coal mines.

Background technique

The underground operation of coal mine is far away from the ground, the working environment is harsh, the mine roadway is complicated, and safety accidents occur from time to time, which brings great harm to the personal safety of underground workers. Therefore, it is very necessary to be able to effectively locate and communicate with underground workers of.

The precise positioning of underground workers is very important to underground workers, especially in the event of an underground safety accident, precise positioning can quickly determine the location of the victim and save rescue time. Therefore, it is urgent to study a set of underground precise positioning system technical challenge. At present, the underground personnel positioning system mainly adopts the mode of manually carrying RFID radio frequency cards and arranging RFID radio frequency card identification substations on the roadway wall. The accuracy of personnel positioning mainly depends on the layout spacing of identification substations. Based on cost and construction constraints, the spacing of identification substations is often tens of meters or even hundreds of meters, resulting in poor personnel positioning accuracy. Therefore, this positioning technology It is generally called regional positioning; in addition, the current personnel positioning system has the limitation of the RFID reading and writing speed in the identification substation, and when dealing with the situation where multiple people pass through the card reading system at the same time, it is easy to miss reading and there is a problem of signal collision. Therefore, there is still a certain distance in the realization of accurate positioning of personnel.

The underground wireless communication system is currently mainly based on WIFI wireless communication system and 3G (there is a tendency to transition to 4G) wireless communication system. Since the WIFI wireless communication system mainly works in the 2.4G public frequency band and has a high transmission rate, so It is widely used. The WIFI wireless communication system is mainly composed of mine-used intrinsically safe wireless terminals, such as mine-used intrinsically safe WIFI mobile phones, intrinsically safe PADs and WIFI base stations. The interval can reach hundreds of meters, while the interval in the non-line-of-sight range such as roadway turns and undulations may be tens of meters. The WIFI base station is connected to the underground industrial Ethernet ring network to realize the interconnection of uphole/downhole two-way voice and even video signals.

At present, coal mine production enterprises generally adopt two systems equipped with the above-mentioned personnel positioning system and WIFI-based wireless communication system. Although some WIFI wireless communication systems have certain personnel positioning functions, they are often auxiliary regional positioning and cannot really replace personnel positioning. system functionality. The use of the two systems not only has the problems of increased cost, construction, and management, but also has unsatisfactory effects in terms of precise positioning as mentioned above.

Contents of the invention

In order to overcome the above-mentioned defects, the present invention provides a mine personnel positioning and wireless communication integrated system, which can grasp the specific position of the underground staff in real time, can realize the precise positioning of key areas, and has both the staff and the underground personnel and the above-ground personnel. The real-time voice or video call function between them can realize the real-time monitoring of the underground conditions by the ground monitoring center and avoid the occurrence of safety accidents.

The technical solution adopted by the present invention in order to solve its technical problems is: a mine personnel positioning and wireless communication integrated system, including a wireless base station based on WIFI, a mine WIFI mobile phone, an RFID radio frequency card and a GIS information system computer,

Due to the low cost of the RFID radio frequency card, it can be deployed intensively, especially on the roadway wall in the key area of the mine, it can be installed every 5 meters;

The WIFI-based wireless base station is properly deployed under the condition that there is no coverage blind area between adjacent base stations, and is connected to the industrial Ethernet. The WIFI-based wireless base station is installed on the wall of the underground roadway every 10m-100m, and Connect to the server on the well via optical fiber; the WIFI-based wireless base stations communicate through wireless signals or optical fibers;

The mine WIFI mobile phone has a built-in RFID radio frequency identification device for receiving RFID radio frequency card information, and sends the received data to the wireless base station based on WIFI, and then the wireless base station based on WIFI is transmitted to the GIS information system on the well via Ethernet computer.

Preferably, the RFID radio frequency identification device is a passive RFID radio frequency identification card.

Preferably, the RFID radio frequency card is a passive identification tag.

Preferably, the mine WIFI mobile phone is an intrinsically safe WIFI mobile phone for mine use.

The beneficial effect of the present invention is: the present invention integrates the wireless base station based on WIFI, mining WIFI mobile phone, RFID radio frequency card, GIS information system computer, and the GIS information system computer is set in the ground monitoring center; For WIFI wireless base stations, the distance between two adjacent base stations shall be subject to no coverage blind area. The WIFI-based wireless base station is connected to the mine server through the mine industrial Ethernet ring network. In key areas, that is, areas that require precise positioning, such as tunneling face roadways and mining face tunneling roadways, passive RFID radio frequency identification cards are densely arranged, and staff use mining WIFI mobile phones with built-in RFID radio frequency identification devices to receive the latest RFID radio frequency in real time The card information is transmitted to the Ethernet network through the wireless base station and sent to the computer with the GIS information system on the ground, realizing the precise positioning of underground personnel. For non-key areas, the mine WIFI mobile phone is directly used to communicate with the nearest wireless base station to realize the regional positioning of underground personnel. The staff can use the mine-used WIFI mobile phone to realize the communication between the underground or any WIFI mobile phone through the WIFI-based wireless base station. In case of emergency, they can report to the ground monitoring center in time, and the ground monitoring center can keep abreast of the specific location information of the accident. , in order to take effective measures for rescue in time and quickly, and increase the chances of survival of the victims. Compared with the existing WIFI-based wireless communication system and personnel positioning system, the present invention integrates the personnel positioning system and the WIFI wireless communication system, the overall cost is greatly reduced, the positioning accuracy can be greatly improved, and the overall practicability is high.

Description of drawings

Fig. 1 is the electrical principle block diagram of the present invention.

Detailed ways

The present invention will be further elaborated below in conjunction with the accompanying drawings.

As shown in Figure 1, a kind of mine personnel positioning and wireless communication integrated system include wireless base station based on WIFI, mining WIFI mobile phone, RFID radio frequency card and GIS information system computer; described RFID radio frequency card is installed in the mine every 5 meters On the roadway wall of the key area; the wireless base station based on WIFI is composed of explosion-proof box, power supply, wireless module, antenna isolator and antenna; the wireless base station based on WIFI is installed on the wall of the underground roadway every tens to hundreds of meters Specifically, the test is carried out according to the actual situation in the mine, based on the fact that there is no coverage blind area between two adjacent base stations, and connected to the server on the mine through industrial Ethernet; the mine WIFI mobile phone has a built-in RFID radio frequency identification for receiving RFID radio frequency card information device, and send the received data to the WIFI-based wireless base station, and the WIFI-based wireless base station transmits to the GIS information system computer on the well through Ethernet, and the GIS information system computer can realize the precise positioning of personnel according to the obtained data; at the same time , The system also has WIFI voice and video wireless communication functions.

As a preferred solution of the present invention, the RFID radio frequency identification card is a passive identification card, which is densely arranged in key areas of the mine. The passive RFID radio frequency identification card is cheap, small in size, does not need a power source, and can be embedded in the roadway wall for a long time. When the staff holds a special mining intrinsically safe WIFI mobile phone and enters the identification range of the passive RFID identification card, the WIFI mobile phone will recognize the information in the passive RFID radio frequency card.

During work, the present invention constitutes the backbone network of wireless communication by the wireless base station based on WIFI; The wireless base station based on WIFI is installed at a certain distance underground, and the wireless base station based on WIFI is connected to the underground industrial Ethernet ring network and connected to the server on the well. The underground staff use the mine WIFI mobile phone to communicate with the mine through the wireless base station based on WIFI communication. In key areas, areas that require precise positioning, such as the roadway of the excavation working face, the RFID radio frequency cards are densely arranged along the roadway of the mining face. Since the mine-used intrinsically safe WIFI hand has a built-in RFID radio frequency identification device, when the staff holds the mine-use WIFI mobile phone in the During regional activities, the RFID radio frequency card information can be received, and the data can be sent to the wireless base station and transmitted to the GIS information system computer in the monitoring center on the well via Ethernet. The GIS information system computer can accurately locate personnel according to the obtained data. When the staff is working in a non-key area, they can use the intrinsically safe WIFI mobile phone in the mine to communicate with the nearest wireless base station based on WIFI communication to realize regional positioning.

In addition, the present invention can carry out real-time communication through the mine-used WIFI mobile phone. In case of emergency, it can report to the ground monitoring center in time, and the ground monitoring center can know the specific location information of the accident in time, so as to take effective measures in time and quickly for rescue. Increase the chances of surviving victims. The invention integrates the WIFI wireless communication system and the personnel positioning system, so that the overall cost is greatly reduced and the practicability is high.

Claims (4)

1. the double integrated wireless communication system in mine personnel location, comprises the wireless base station based on WIFI, mining WIFI mobile phone, RFID radio-frequency card and GIS information system computer, it is characterized in that:

Described RFID radio-frequency card is arranged in the wall of mine key area every 5m;

The described wireless base station based on WIFI is arranged on underworkings wall every 10m-100m, and is connected to aboveground server by optical fiber; Between the described wireless base station based on WIFI, pass through wireless signal or optical-fibre communications;

Described mining WIFI embedded in mobile phone is useful on the RFID rfid device that receives RFID radio-frequency card information, and the data that receive are sent to the wireless base station based on WIFI, the wireless base station based on WIFI is transferred to aboveground GIS information system computer by Ethernet again.

2. the double integrated wireless communication system in mine personnel according to claim 1 location, is characterized in that: described RFID rfid device is passive RFID radio-frequency identification card.

3. the double integrated wireless communication system in mine personnel according to claim 1 and 2 location, is characterized in that: described RFID radio-frequency card is passive identification tag.

4. the double integrated wireless communication system in mine personnel according to claim 1 and 2 location, is characterized in that: described mining WIFI mobile phone is mine intrinsic safety WIFI mobile phone.