CN201818330U - Coal mine underground personal positioning system - Google Patents

Coal mine underground personal positioning system Download PDF

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Publication number
CN201818330U
CN201818330U CN2010205626540U CN201020562654U CN201818330U CN 201818330 U CN201818330 U CN 201818330U CN 2010205626540 U CN2010205626540 U CN 2010205626540U CN 201020562654 U CN201020562654 U CN 201020562654U CN 201818330 U CN201818330 U CN 201818330U
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ethernet
node
coal mine
data
chip
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CN2010205626540U
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李彬林
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李彬林
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Abstract

The utility model relates to the field of wireless sensor network positioning technology, and provides a wireless coal mine underground personal positioning system, which has the advantages of high efficiency, high reliability, low cost, low power consumption, low false rate and simplification of layout. The wireless coal mine underground personal positioning system comprises a ZigBee wireless network and an Ethernet wired network, wherein the ZigBee wireless network is used for collecting and transmitting data; the Ethernet wired network is used for transmitting the data to the ground; the data is received and analyzed by ground data receiving and analyzing software, stored in a database, and finally sent to a monitoring system; and the monitoring system carries out operations like judgment alarm, data statistics, storage, display, personal rout monitoring, control printing on the received monitoring signals. The system is a comprehensive application system integrating underground personal attendance checking, tracking and positioning, emergency treatment after disasters, and daily management.

Description

A kind of coal mine down-hole personnel navigation system
Technical field
The utility model relates to the wireless sensor network field of locating technology, particularly is a kind of coal mine down-hole personnel navigation system.
Background technology
National in recent years safety of coal mines input continues to increase, and particularly drops into a large amount of funds aspect control of coalmine gas and the exploitation.Country's utilization in continuous 3 years national debt fund helps state-owned emphasis colliery to carry out upgrade safety technologies, the positive self-raised fund of coal mining enterprise, and local government has also given support.But mine disaster is also in continuous generation, and the ineffective drawback that exposes present monitoring system of back rescue and relief work takes place in disaster, monitoring system is to going into well personal management difficulty, aboveground personnel are difficult in time grasp personnel in the pit's DYNAMIC DISTRIBUTION and operation situation, in case accident takes place, rescue to the personnel in the pit lacks authentic communication, and the efficient of rescue and relief work, safety rescue is low, and effect is undesirable.
The document of relevant coal mine down-hole personnel navigation system has occurred much nearly one or two years, summary is got up, the coal mine down-hole personnel navigation system, domestic great majority all use KJ69 type personal security monitoring system, are made up of wireless encoding transmitter, downhole data Monitor Sub-Station of Less, ground central station and data transmission channel.The wireless encoding transmitter sends the radiofrequency signal with representative capacity feature, receives through data monitoring, re-sends to ground central station.Central station receives from the code signal on the data monitoring substation, carries out analyzing and processing, forms various files, makes administrative staff can in time inquire about various information circles.Functions such as there are moving target monitoring inquiry, safety guarantee in this system, lose warnings, statistics work attendance, information networking have simple in structure, flexible configuration, system multiplexing, protect advantages such as original investment and identification.But also exist two shortcomings simultaneously: 1, because substation does not possess the judgement recognition capability of direct of travel, do not possess the judgement recognition capability whether personnel pass through fully yet, therefore, the disconnected situation of a kind of extreme erroneous judgement may appear in the design designed system in actual use.2, wire transmission, said system must adopt transmission manner in advance: the mining flame-retardant feed cable is to provide working power for substation; The mining flame-retardant twisted pair communications cable mainly is the connection of finishing downhole network, and in the underworkings wired supply of electric power is had strict restriction.
The utility model content
The purpose of this utility model provide a kind of efficient, high reliability, low cost, low-power consumption, False Rate low, lay and be easy to wireless coal mine down-hole personnel navigation system.The technical scheme that the utility model adopted is such: a kind of coal mine down-hole personnel navigation system, form by ZigBee wireless network and Ethernet Ethernet cable network, described ZigBee wireless network is gathered data and is transmitted, Ethernet transmits data to ground by Ethernet, after the data on ground receive and resolve the software reception, resolve, store in the database, deliver to observation system at last and handle.
Further: described ZigBee wireless network is made up of location node, routing node, access node, described location node periodically sending information is to routing node, described routing node routes to access node with information, described access node links to each other with Ethernet by ethernet gateway, the information that receives is sent to observation system by Ethernet, and gateway carries out communication with access node by the RS232 serial ports and is connected.
Further: described location node is made up of main control chip MCU, radio frequency chip, external equipment, described main control chip is the PIC18F4620 chip, it is connected with radio frequency chip by the SPI mouth, described radio frequency chip is the CC2420 chip, it is communicated by letter with extraneous by antenna, and described main control chip is connected with the external equipment machine by the UART mouth.
Further: described zigBee location node is battery-powered, and described Ethernet Ethernet uses the mining flame-retardant twisted pair communications cable to be connected with ground.
By adopting the aforementioned techniques scheme, the beneficial effects of the utility model are: this coal mine down-hole personnel navigation system, and adopted the zigBee locating module regularly initiatively to send a signal to the routing node that closes on, can in time grasp personnel positions, direct of travel, the reliability height has been avoided the direction erroneous judgement; Owing in the underworkings wired supply of electric power is had strict restriction, native system adopts the open wireless sensor network of ZigBee wireless communication technique, lay easily, the ZigBee device is battery-powered, one batteries can be used 6 months at least, its cost is little, low in energy consumption, and what the part of Ethernet in the tunnel also will be by high power capacity is battery-operated.
Description of drawings
Fig. 1 is the system architecture schematic diagram of the utility model embodiment;
Fig. 2 is the utility model embodiment location node logic diagram of circuit;
Fig. 3 is that the utility model embodiment personnel in the pit locatees schematic diagram.
The specific embodiment
Further specify the utility model below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, a kind of coal mine down-hole personnel navigation system, form by ZigBee wireless network and Ethernet Ethernet cable network, described ZigBee wireless network is gathered data and is transmitted, Ethernet transmits data to ground by Ethernet, after the data on ground receive and resolve the software reception, resolve, store in the database, deliver to observation system at last and handle, observation system carries out processing such as discriminant alarm, data statistics, storage, demonstration, the monitoring of personnel's route, control printing to the monitor signal that receives.Described data reception parsing software operates on the server on ground with the form of backstage application software, is multi-thread software.A thread is to receive data from serial ports, is stored in the chained list; A thread carries out data analysis and storage for analyzing the data in the chained list; A thread is to show reception, parsing situation at present in user interface; The pattern of using multithreading be for software can the real-time response user interface interaction.Described Zigbee wireless network subnet and Ethernet have relative independentability, do not need to revise the 26S Proteasome Structure and Function of existing coal mine safety monitoring system, just can reach the purpose of location.The simultaneously multiplexing Ethernet net of having built has been protected original investment, has avoided repeated construction.
As shown in Figure 2, described ZigBee wireless network is made up of location node, routing node, access node, described location node periodically sending information is to routing node, described routing node routes to access node with information, described access node links to each other with Ethernet by ethernet gateway, the information that receives is sent to observation system by Ethernet, and gateway carries out communication with access node by the RS232 serial ports and is connected.Described zigBee location node is battery-powered, and described Ethernet Ethernet uses the mining flame-retardant twisted pair communications cable to be connected with ground.During system works, need be with location node attached on one's body the personnel in the pit, the data that its positional information is sent into ground by Zigbee network and Ethernet receive parsing module, mark in real time on map by the positional information of GIS technology with personnel at last.Native system utilization FME carries out the conversion of map, and FME is a general GIS software platform data transaction instrument of striding, and is easy-to-use flexibly and have a strong functions.
Described location node is made up of main control chip MCU, radio frequency chip, external equipment, and described main control chip is the PIC18F4620 chip, and it is responsible for controlling the work of whole plank.This single-chip microcomputer is one eight a single-chip microcomputer, the flash that 64Kbytes is arranged, the SRAM of 4Kbytes, the EEPROM of 1Kbytes, an A/D mouth, a serial ports, 3 clocks are supported a spi bus, described main control chip is connected with radio frequency chip by the SPI mouth, described radio frequency chip is the CC2420 chip, and it is communicated by letter with extraneous by antenna, and described main control chip is connected with the external equipment machine by the UART mouth.Mine staff's positioning and communicating module making becomes the sign fixed to the sides of public transport vehicles showing the route number or terminal in the native system, about 2cm*2cm size, very convenient carrying.Because location node only need send and have information, microcontroller MCU uses common single-chip microcomputer.When the system manager provides the sign fixed to the sides of public transport vehicles showing the route number or terminal for the mine staff, information such as this staff's title, job number, classification under the corresponding record, and the permanent address of 64 of the radio frequency chips of these information and small-sized communication module is corresponding.Like this, when receiving, the information of the coal mine personnel navigation system on ground resolves software when receiving locating information, can be by 64 permanent address of locating information, permanent address coupling with 64 of the radio frequency chips of staff's sign fixed to the sides of public transport vehicles showing the route number or terminal of noting, carry out the identity discrimination, obtain this staff's information such as title.
Described routing node fixed part is deployed in the coal mine roadway, divides from the composition of ZigBee subnet, is the father node of location node, and function is to receive the information that location node sends, and with this information route (jump set) to access node.The about 15cm*10cm size of routing node is deployed in the coal mine roadway according to network coverage strategy fixed part.A routing node communication coverage generally has only tens meters, and promptly each node all can only communicate with its neighbor node.Because routing node need be born more amount of calculation and memory space, the microcontroller MCU of routing node uses high-grade single-chip microcomputer.When the system manager disposes routing node, be all route numberings, the numbering of this node under the corresponding record, and the permanent address of 64 of the radio frequency chips of these information and routing node is corresponding.Like this, routing node is as the father node of location node, when receive that location node sends have information the time, this locating information is added oneself address information, and with this information route (jump set) to access node.
Described access node fixed part is deployed in the coal mine roadway, and function is to accept from the routing node data, and it is sent to observation system by Ethernet.Access node is a ZigBee organizer, and he links to each other with Ethernet by an ethernet gateway.Gateway carries out communication with the ZigBee access node by the RS232 serial ports and is connected.Because access node need be born more amount of calculation and memory space, communication workload, the microcontroller MCU of access node uses network microcontroller AXI100.Access node also needs to carry out communication with ethernet gateway by the RS232 serial ports and is connected, so access node has also disposed serial port module.In the process of program debugging, can also link to each other with PC by serial ports UART module, carry out the renewal of chip by serial ports, routing node and location node do not dispose serial port module, the mode of their program updates is: PC links to each other with access node by serial ports, adopt communication transmission data between location node or routing node and the access node, PC sends to access node with the programming data of refresh routine, be transferred to location node or routing node by access node again, programming is to the guiding loading zone of Flash then.Access node is also born simultaneously the role of routing node, has signal when location node sends, and access node receives when there is signal in this, and access node will exist information to add oneself address information, and this information is sent in the Ethernet.
As shown in Figure 3, when the mine staff carried the sign fixed to the sides of public transport vehicles showing the route number or terminal in underground work, the location node in moving can be entered in another ZigBee network by a ZigBee network, determines its position by the routing node that receives the location node signal.The foundation of position judgment is two wireless signal parameter: LQI (Link Quality Indicator) and RSSI (Signal Strength Indicator), and these two values are drawn after receiving the signal of location node by routing node.The precision of position judgment depends on the density that routing node distributes, and need can determine according to on-site actual situations.
Wherein the key link of location judgement promptly is to adopt the accurate location of realizing node based on received signal intensity indication (RSSI) location algorithm.This location algorithm is known at oneself under the situation of transmit signal strength of transmitting node, receiving node is according to receiving that the intensitometer of signal calculates the propagation loss of signal, according to the signal propagation model formula loss is converted into distance then, utilizes trilateration to calculate the position of unknown node again.In actual location, guarantee that unknown node is in the communication range of the known reference mode of three above transmit signal strength and position coordinates, unknown node is calculated the propagation loss of signal according to the received signal intensitometer, and then calculate node location, thereby realize location to the staff who carries it.
Native system is the incorporate comprehensive utilization of first aid after collection personnel in the pit work attendance, track and localization, the calamity, a daily management system, is domestic most advanced, stable, the most specialized utilization system.
More than show and described basic principle of the present utility model and principal character and advantage thereof; the technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the explanation just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications; these changes and improvements all fall in claimed the utility model scope, and the claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims (4)

1. coal mine down-hole personnel navigation system, it is characterized in that: form by ZigBee wireless network and Ethernet Ethernet cable network, described ZigBee wireless network is gathered data and is transmitted, Ethernet transmits data to ground by Ethernet, after the data on ground receive and resolve the software reception, resolve, store in the database, deliver to observation system at last and handle.
2. a kind of coal mine down-hole personnel navigation system according to claim 1, it is characterized in that: described ZigBee wireless network is made up of location node, routing node, access node, described location node periodically sending information is to routing node, described routing node routes to access node with information, described access node links to each other with Ethernet by ethernet gateway, the information that receives is sent to observation system by Ethernet, and gateway carries out communication with access node by the RS232 serial ports and is connected.
3. a kind of coal mine down-hole personnel navigation system according to claim 2, it is characterized in that: described location node is made up of main control chip MCU, radio frequency chip, external equipment, described main control chip is the PIC18F4620 chip, it is connected with radio frequency chip by the SPI mouth, described radio frequency chip is the CC2420 chip, it is communicated by letter with extraneous by antenna, and described main control chip is connected with the external equipment machine by the UART mouth.
4. according to claim 1 or 2 or 3 described a kind of coal mine down-hole personnel navigation systems, it is characterized in that: described zigBee location node is battery-powered, and described Ethernet Ethernet uses the mining flame-retardant twisted pair communications cable to be connected with ground.
CN2010205626540U 2010-10-11 2010-10-11 Coal mine underground personal positioning system Expired - Fee Related CN201818330U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102269014A (en) * 2011-08-01 2011-12-07 煤炭科学研究总院 Coal mine down-hole fire monitoring system based on wireless sensor network
CN103670513A (en) * 2013-11-28 2014-03-26 枣庄矿业集团新安煤业有限公司 Positioning system for mine cars in mine
CN104295317A (en) * 2014-04-30 2015-01-21 南京信息工程大学 Intelligent monitoring and management system of mine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102269014A (en) * 2011-08-01 2011-12-07 煤炭科学研究总院 Coal mine down-hole fire monitoring system based on wireless sensor network
CN102269014B (en) * 2011-08-01 2013-08-28 煤炭科学研究总院 Coal mine down-hole fire monitoring system based on wireless sensor network
CN103670513A (en) * 2013-11-28 2014-03-26 枣庄矿业集团新安煤业有限公司 Positioning system for mine cars in mine
CN104295317A (en) * 2014-04-30 2015-01-21 南京信息工程大学 Intelligent monitoring and management system of mine

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110504

Termination date: 20121011

C17 Cessation of patent right