The environment of Coal Production and security monitoring are vital problems in the industry production process of colliery, and in addition, production efficiency and administration of energy conservation also are the key links that coal enterprise increases economic efficiency.At present coal enterprises in China has also adopted management information system, environmental monitoring system, personnel positioning management system etc. in succession, but these systems generally set about from the individual event business, be separated from each other.Personnel positioning, aspect such as environmental surveillance, Equipment Control is down-hole location and the key business link of safety monitoring system, the basis of realizing this several links be to collect heat transfer agent, by communication channel to information centre transmit the analyzing and processing of heat transfer agent, heat transfer agent and the most at last feedback information give controlling unit.Because the underground work personnel have mobility, so personnel's location is adopted the wireless location mode usually generally speaking; The process that sensor information is collected and uploaded then both can adopt wired mode to realize, also can adopt wireless mode to realize.
The multiple downhole personnel management system that adopts different locate modes has appearred recent years, " a kind of downhole positioning system, device and method " (Chinese patent of proposing such as Cui Li for example based on wireless sensor network, application number: CN200510071144.7) with prosperous " downhole coal mine personnel real-time radio positioning method " (Chinese patent, the application number: 200710171812.2) adopt mobile node to monitor the mode of beacon that proposes that wait of obliging; " based on the underground positioning communication system of low-power consumption short-range automatic routing wireless network " that Li Gang proposes (Chinese patent, application number: 200510016119.9) adopt the interconnected mode of full Wireless; " a kind of wireless location system " that Sun Jian proposes (Chinese patent, application number: the 200720029730.X) mode of employing RS232 or RS485 network and the combination of wireless ZIGBEE network based on ZIGBEE.
But in actual applications, all there is certain drawback in these locate modes: monitor the beacon mode for mobile node, its system need work the several years under button cell is powered environment usually; For the full Wireless mutual contact mode, because laying, the network of coal mine roadway belongs to chain-shaped network, it all can not satisfy the demands well at aspect the reliability of network and the time-delay aspect brought of multi-hop; For RS232 or RS485 network and the wireless ZIGBEE network mode that combines, the traffic demand of backbone network when it is difficult to satisfy a large amount of personnels in the pit are located in real time.
On the carrier of personnel positioning basic network, the bi-directional of other information and can both be achieved according to the control operation of personnel positions information.Use at present special downhole safety floor manager or fixingly in the down-hole lay the situations such as various pernicious gases that transducer and communication network detect each zone, down-hole.But in fact, safety and patrol person can not be reflected the situation of All Ranges in real time; The fixed sensing test point also is difficult to cover along with the progress of engineering all corners comprehensively.
Summary of the invention
The present invention seeks at the actual demand of present mine and the deficiency of prior art equipment, fully utilize wireless and technology such as wire communication, embedded system, provide a kind of employing based on trunk optical fiber looped network, CAN network or Ethernet, use many bunches of trees/chain wireless self-organization network to realize the personnel positioning communication network that covers on a large scale simultaneously, and location, a kind of down-hole and safety monitoring system are provided thus, the instruction interaction of flow detection, personnel in the pit and the control centre of realization subsurface environment and the automatic energy saving of mine lighting equipment are controlled.
For realizing above-mentioned purpose of the present invention, location, down-hole of the present invention comprises with safety monitoring system:
The ground control centre, receive locator data bag and communication data packet that base-station gateway sends, it is resolved the positional information of back calculating and demonstration and the corresponding mobile node of described locator data bag, and the mobile node that described communication data packet is sent to appointment by described base-station gateway and a plurality of wireless location base station;
A plurality of and the corresponding personnel positioning terminal of mobile node are by broadcast band timed sending broadcast singal;
A plurality of and the corresponding hand-held note locating terminal of mobile node, the instruction of response mobile node to specifying mobile node or ground control centre to send the short message packet, and receives short message or the instruction by the transmission of described a plurality of wireless location base station of ground control centre or other mobile nodes by the wireless location base station in the range of signal;
A plurality of and the corresponding voice communication locating terminal of mobile node, the instruction of response mobile node to specifying mobile node or ground control centre to send the voice communication data bag, and receives short message, voice messaging or the instruction by the transmission of described a plurality of wireless location base station of ground control centre or other mobile nodes by the wireless location base station in the range of signal;
A plurality of wireless location base station, broadcast singal and communication data in the received signal scope obtain the intensity data of described broadcast singal, by generating the locator data bag after the protocol encapsulation, send to base-station gateway with described communication data packet;
Base-station gateway receives the locator data bag and the communication data packet of described a plurality of wireless location base station, sends to the ground control centre.
Wherein, described a plurality of wireless location base station is arranged in the mine lighting equipment, according to whether there being locating terminal in the illumination zone, recently regulates the brightness of described lighting apparatus by the duty of regulating PWM according to the time-delay of appointment.
Wherein, described ground control centre is connected by cable network with described base-station gateway.
Wherein, between described base-station gateway and the described a plurality of wireless location base station, and be connected by wireless network between each described a plurality of wireless location base station.
Wherein, described base-station gateway, each described wireless location base station, personnel positioning terminal, hand-held note locating terminal and voice communication locating terminal are provided with sensor interface, are used for connecting as required sensors of various types to detect surrounding enviroment data and personnel's vital signs data.
Wherein, each described wireless location base station and described base-station gateway include the double frequency communication module, are respectively applied for transmission locator data bag and communication data packet, and described communication data packet comprises short message packet and voice communication data bag.
Wherein, each described personnel positioning terminal is provided with alarm button, is used for the response personnel instruction and sends emergency alarm information.
Compared with prior art, the advantage of system of the present invention is:
The present invention is integrated on one's body the personnel with transducer, can realize to hazardous substance in real time, the detection of flowing, and for some zones that is difficult to connect up, the coverage that adopts the wireless mode extension sensor to detect;
The present invention has realized the mobile node and the fixed base stations of extremely low power dissipation, utilize the communication between them to realize accurately location and transfer of data, sensor interface and lighting apparatus control interface on mobile node and fixed base stations, have all been realized, calculate the position of node by the strength ratio between the calculating mobile node signal arrival different base station, and by using the double-channel technology to reduce the traffic of wireless network, realization guarantees the reliability of communication to the parallel processing of location and transmission.
All base stations of the present invention all have the data hold function, under network interruption situation, also can preserve location and sensor data signal, for management and prevention of accident, the analysis of mine provides effective foundation, and realized energy-conservation production by control to lighting apparatus.
Location, down-hole and safety monitoring system that the present invention proposes are described as follows in conjunction with the accompanying drawings and embodiments.
As shown in Figure 1, comprise the control centre 6 that is arranged at ground according to location, down-hole of the present invention with safety monitoring system, be arranged at the base-station gateway 5 of down-hole, be distributed in a plurality of wireless location base station 4 in each zone, down-hole, personnel positioning terminal 1, short message terminal 2, the voice communication terminal 3 handed by the personnel in the pit.
Wherein, be connected by cable network between control centre 6 and the base-station gateway 5; Connect by radio communication between base-station gateway 5, a plurality of wireless location base station 4 and the various handheld terminal 1,2,3; The gateway of base-station gateway 4 utilizes optical fiber ring network, CAN network or Ethernet, and RS485 network or WIFI form wired backbone network, be root node with it simultaneously, by described a plurality of wireless location base station 4 to organize themselves into tree-like wireless location sub-network, this subnet is laid along underworkings, the topological structure that forms is a chain and tree-shaped, and thus, wired backbone network combines with wireless branched network and covers whole tunnel; Control centre 6 is the center of whole network, comprises computer, server, the network equipment, and operates in the software in computer and the server.
Underground work personnel (mobile node) are in moving process, its hand-held personnel positioning terminal is by broadcast band fixed time broadcast signal, after near wireless location base station receives broadcast singal, obtain signal content and signal strength signal intensity, these information are generated the locator data bag after according to protocol encapsulation give base-station gateway by Network Transmission, base-station gateway is transferred to control centre with the locator data bag by cable network, control centre resolves these packets, obtains the positional information of mobile node by the strength ratio between the calculating mobile node signal arrival different base station; In addition, when the personnel in the pit need realize each other or during with the communicating by letter of control centre, can be by hand-held short message terminal or voice communication terminal input note data or voice signal, and intended receiver, near the personnel wireless location base station receives these note datas and voice communication data, and it is sent to control centre by base-station gateway, control centre is as message switching center, after receiving these communication datas of storage, according to the information content, by above-mentioned wired backbone network and wireless branched network, information is forwarded to corresponding handheld terminal.Need to prove,, during described personnel positioning terminal and communication terminal mobile, finish the switching that receives between the base station automatically because above-mentioned wired backbone network and wireless branched network be in conjunction with having covered the down-hole whole tunnel.Thus, control centre passes through the location of the framing signal realization of personnel positioning terminal to the personnel in the pit, has realized between the personnel in the pit and the information interchange between down-hole and the control centre by short message terminal and voice communication terminal.
Preferably, a plurality of wireless location base station can be arranged in the lighting apparatus such as tunnel lamp, according to whether there being running fix equipment in its illumination zone, recently regulates the brightness of illumination according to the time-delay of appointment by the duty of regulating PWM, realizes energy-conservation production.
Preferably, base-station gateway, the wireless location base station, the personnel positioning terminal, short message terminal, and voice communication terminal all can be provided with sensor interface and processor serial communication interface, by being installed, different transducers directly measures near base station or the terminal gas, humiture, data such as personnel's vital signs data and electric equipment operating state, perhaps with the direct swap data of the existing monitoring device in down-hole, these data are sent to the ground control centre by the mode identical with the transmission course of locator data bag and communication data packet, realize that the three-dimensional of mine internal information shows.
Preferably, base-station gateway, wireless location base station use the double frequency module to separate the transmission of locator data bag and communication data packet, the channel of one of them frequency is specifically designed to the transport communication data, comprises the short message data of short message terminal transmission and the voice communication data that voice communication terminal sends; One other channel is specifically designed to the real-time broadcasting location data bag that reception staff's locating terminal sends.By using the double-channel technology to reduce the traffic of wireless network, realize parallel processing to location and transmission, guarantee the reliability of communication.
Preferably, base-station gateway and wireless location base station are carried out network state detection automatically, and when network failure took place, the described personal terminal data in real time that will receive was automatically preserved.After network recovery is normal, will store data upload, not obliterated data automatically.
Preferably, the personnel positioning terminal can be provided with alarm button, transmits to realize the Rapid Alarm signal.
To enumerate specific embodiment below is further elaborated to system of the present invention.
Be illustrated in figure 2 as the structure chart of the wireless location base station of the preferred embodiment of the present invention, comprise: double frequency communication module, memory module, microcontroller processor, Power Management Unit and sensor interface.Wherein, microcontroller and double frequency communication module, memory module, Power Management Unit connect mutually.The double frequency communication module is the two-way transceiver, comprises two short-range wireless communication module, the double frequency design, and one of them frequency range is used for receiving the locator data bag, and a channel is used for finishing note and voice communication; Memory module is a nonvolatile memory, has the FLASH of 512K, can be used for the locator data storage, with the defence network failure; Microcontroller is a processor that has the monocycle hardware multiplier, finishes locator data filtering, communication protocol processing, and the operation application software; Control signal of this processor output is as the control to mine lamp brightness simultaneously; Sensor interface is used for connecting as required various kinds of sensors detecting surrounding enviroment or personnel's vital signs, and the data of the gathering communication network by native system is sent to control centre; Described wireless location base station also can be provided with the WIFI interface, connects the trunk communication network in inconvenience wiring zone by WIFI; This wireless location base station has cable power interface and battery interface, and volume is little, can place mining equipments such as tunnel lamp, and power management module is used for the Charge Management to rechargeable battery.
Be illustrated in figure 3 as the structure chart of the base-station gateway of the preferred embodiment of the present invention, comprise: double frequency communication module, memory module, microcontroller processor, Power Management Unit, AD sampling unit, and sensor interface, ethernet controller, CAN communication interface, RS485 communication interface, optical fiber interface, RJ45 Ethernet interface, WIFI interface.Wherein, the double frequency communication module is the two-way transceiver, is preferably two short-range wireless communication module, is respectively applied for to receive locator data bag and communication data packet; Memory cell is a nonvolatile memory, is used for preserving when accident (outage, mine accident etc.) location and sensing data; The AD sampling unit is used for the collection of sensing data.The microcontroller processor has the real-time embedded operating system of simplifying, and is used for the microprocessor task scheduling, protocol conversion, Data Fusion; Sensor interface is used for connecting as required various kinds of sensors detecting surrounding enviroment or personnel's vital signs, and the data of the gathering communication network by native system is sent to control centre; Ethernet interface, CAN bus interface, RS-485 interface etc. are used for having laid network with existing other down-holes and realize seamless link; Described base-station gateway also can be provided with the WIFI interface, connects the trunk communication network in inconvenience wiring zone by WIFI; This base-station gateway external direct current power supply power supply has backup battery, realizes charge function by the battery charging management module.
The personnel positioning terminal of the preferred embodiment of the present invention shows that by radio-frequency module, power module, state LED and danger button adopt the sealing filling mode to constitute.Wherein, radio-frequency module is a short-range wireless communication module, the timed sending broadcast singal; Power module is the button cell of 1000mAH, sustainable work 3 years; State shows that LED can be set to respond different situations and present different conditions; When the burst emergency appears in periphery, can warning message be sent to the ground control centre by the base station by urgent button, thus, the ground control centre can be to down-hole nominator's pocket transmission announcement information.
Be illustrated in figure 4 as the structure chart of the hand-held short message terminal of the preferred embodiment of the present invention, comprise: microprocessor, radio receiving transmitting module, memory module, display unit, Power Management Unit and sensor interface.Wherein, microprocessor is the 32-bit microprocessor of Cortex kernel, is used for the core control and the information processing of equipment; Radio receiving transmitting module is a short-distance wireless communication chip, is used for sending and receiving note data; Memory module is a nonvolatile memory, is used for the storing communication data; Display unit is a color LCD, is used to show short message content; Sensor interface is used for connecting as required various kinds of sensors to detect surrounding enviroment or personnel's vital signs; The power supply of employing rechargeable battery realizes Charge Management by Power Management Unit; Should use patterned operation interface by hand-held short message terminal, and adopt the total line traffic control of 8 parallel-by-bits of one group of 80 pattern, input adopts the input of independent IO to interrupt, and software goes shake; Operate the input of note by button, read and the parameter setting of equipment.
Be illustrated in figure 5 as the structure chart of the hand-held voice communication locating terminal of the preferred embodiment of the present invention, comprise: microprocessor, radio receiving transmitting module, memory module, display unit, phonetic entry output unit, Power Management Unit and sensor interface.Wherein, microprocessor is used to finish the speech coding based on G.729, and the voice transfer between realization and the whole system; Radio receiving transmitting module is a short-distance wireless communication chip, is used for sending and receiving note data; The phonetic entry output unit is a voice codec chip, is used for the digital collection and the broadcast of voice signal; Memory module is a nonvolatile memory, is used for the storing communication data; Display unit is a color LCD; The power supply of employing rechargeable battery realizes Charge Management by Power Management Unit; This voice communication terminal is realized can also realizing voice communication the demonstration and storage with the short message communication of whole system and information except adopting the mode identical with hand-held short message terminal; In the transmission course of voice signal, the system of present embodiment uses in transmission and keep the dedicated voice transmission time slot on time-multiplexed channel, and sets up connection-oriented data path when route.
Above-mentioned execution mode only is used to illustrate the present invention; and be not limitation of the present invention; the those of ordinary skill in relevant technologies field; under the situation that does not break away from the spirit and scope of the present invention; can also make various variations and modification; therefore all technical schemes that are equal to also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.