CN2728106Y - Downhole operating workman location tracking system - Google Patents

Abstract

The utility model relates to a downhole operating workman location tracking system. An electronic identification plate (1) which is carried by the downhole operating workman comprises antennae (10), a device (5) which receives request signals and a device (6) which transmits encoded signals. The antennae(10)are connected with the device (5) which receives the request signals and the device (6) which transmits the encoded signals. The node transmitter receiver set(2) arranged on the path of the underground mine comprises antennae (25), a device which receives the encoded signals and a device which transmits the request signals. The device which receives the encoded signals(6) can transport the encoded signals (6) to the host computer (4) in the monitoring center through the transmission system (3).

Description

The underground operators locating and tracking system

Technical field:

The utility model is relevant with a kind of underground operators location tracking and monitoring system.

Background technology:

Follow the tracks of underground operators location, and suing and labouring after scheduling, the Safe Production Supervision control of underground work, the accident of underground work taken place, loss that the reduction accident is brought etc. are of great significance.

The system product of following the tracks of at the mobile surface targets location has had many, as GPS (Global Position System) GPS, radar system, based on application system of video technique etc., but because the particularity of tunnel and environment is abominable, these products all can't be applied in the environment of down-hole.

The content of utility model:

The purpose of this utility model provides a kind of simple in structure, and is with low cost, is fit to the underground operators locating and tracking system of subsurface environment.

The utility model is achieved in that

Electronic identity board of the present utility model is carried by underground operators, device by antenna 10 and connected reception request signal 5, transmit coded signals 6 constitutes, node R-T unit 2 be positioned at the tunnel along the line on, be made of the device of antenna 25, received encoded signal 6 and the device of emission request signal 5, the device of received encoded signal 6 is transported to code signal 6 system host 4 that is positioned at monitoring center by transmission system 3.

Power circuit 11 and the transceiver mode switch switching circuit 18 that is connected with built-in omnidirectional antenna 10 are arranged, the input RX of commutation circuit output and signal transmitting and receiving module 13 in the housing of electronic identity board 1 _INConnect, the commutation circuit input is by the output TX of power amplifier and transceiver module 13 _OUTConnect the output RX of signal transmitting and receiving module 13 _OUTPass through the input DATA of signal comparator circuit 14, circuits for triggering 15, code signal generation circuit 16, train of signal line output treatment circuit 17 and transceiver module 13 successively _INConnect.

Signal comparator circuit 14 is formed the RX of the 1D termination transceiver module 13 of the registers group of treatment circuit 54 by sealing in and going out shifting processing circuit 54, comparison circuit 55 and systematic identification code generation circuit 56 _OUTEnd, the output 1D step-by-step of registers group meet the corresponding input end mouth P of the digital comparator of corresponding tandem type of comparison circuit 55 ₀, P ₁, P ₂, P ₃Pin, the input Q of comparator ₀, Q ₁, Q ₂, Q ₃Pin is the output of each encoder of connection circuit 56 respectively, and the encoder input connects button group and trigger impulse are set, cross-linked two NOR gate of the output contact Power Generation Road 15 of comparator or the input R of two NAND gate _DThe output of gate circuit connects the input of the encoder of code signal generation circuit 16, the output of encoder connects the input of the CT74LS199 chip of train of signal line output treatment circuit 17, and the output of chip connects the DATAIN pin of signal transmitting and receiving module 13, and the SH of chip, CD pin meet gate circuit G ₂, Q _A, Q ₇-Q.Pin meets gate circuit G ₁, G ₁, G ₂Output connect and to send and to go here and there the complement mark signal.

Node R-T unit 2 has power circuit 27 and the transceiver mode switch switching circuit 31 that is connected with antenna 25, commutation circuit 31RX _OUTThe RX of end and signal transmitting and receiving module 30 _INEnd connects, commutation circuit 31TX _INEnd is through the TX of a power amplifier and transceiver module 30 _OUTEnd connects, the RX of transceiver module 30 _OUTThe RX of end and answer signal forwarding module 32 _INEnd connects, the RX of forwarding module 32 _OUTEnd is connected with system host 4 by transmission system 3, and the output of node request signal generative circuit 28 is connected with serial output processing circuit 29, the DATA of the output of circuit 29 and transceiver module 30 _INEnd connects.

Transceiver module 30 is integrated package LMX3162, and signal forwarding module 13 is integrated package 89C51, and transceiver mode switch switching circuit 31 is an integrated package 2436400.

Node request signal generative circuit 28 has the 8421BCD encoder of some parallel connections, and its input termination is provided with button group and trigger impulse, the D of its output terminated serial output processing circuit 29 and CT74LS199 chip ₀-D ₇End, the Q of chip _A, Q ₇-Q.Pin meets gate circuit G ₇, SH, the CD pin meets gate circuit G ₂, G ₂End input negative pulse enabling signal, G ₁And G ₂Output output also-string converts marking signal S, CT74LS199 chip output serial data is to the DATAIN end of transceiver module 30.

Main frame 4 comprises microwave receiving main frame 37, the network switch 38 and central processing host 39, in the housing 40 of central processing host 39 wherein processing main plate 41 is arranged, central processing unit 50 and memory 51,52, network interface card 47, video card 48 are arranged on the mainboard 41, external connection keyboard/mouse data interface circuit 49 connects, network interface card 47 is connected with the network switch 38 by interface 43, and the network switch 38 is connected with microwave receiving main frame 37 or/and forwarding module 32.

Location of the present utility model is followed the tracks of operation and not influenced by tunnel light and geographical conditions, and system configuration is simple, and system's construction cost is low.

Description of drawings:

Fig. 1 is the utility model system block diagram.

Fig. 2 is an electronic identity board structure chart.

Fig. 3 is a node R-T unit structure chart.

Fig. 4 is a host structure chart.

Fig. 5 is a transceiver mode switch switching circuit schematic diagram.

Fig. 6 is the transceiver module circuit theory diagrams.

Fig. 7 is a node request signal comparison circuit schematic diagram.

Fig. 8 is one-bit digital comparator logic figure.

Fig. 9 is the circuits for triggering schematic diagram.

Figure 10 is code signal generation circuit theory diagrams.

Figure 11 is a code signal generation circuit bank schematic diagram.

Figure 12 is a train of signal line output treatment circuit schematic diagram.

Figure 13 is the signal transmitting and receiving module map.

Figure 14 is electronic identity board circuit theory diagrams.

Figure 15 is node R-T unit circuit theory diagrams.

Embodiment:

System of the present utility model adopts a kind of special electronic identity board 1, a kind of node R-T unit 2, corresponding transmission system 3 and host computer system 4 to constitute complete treatment system.Wherein node R-T unit 2 is to electronic identity board 1 transmitting node inquiry (microwave) signal 5, and electronic identity board 1 is numbered (microwave) signal 6 as answer signal to node R-T unit 2 emitting electrons identity discs after receiving the node request signal.

System configuration of the present utility model is referring to accompanying drawing 1 wherein:

1=electronic identity board.It is the front end signal generator that native system and monitored personnel use.Triggered by the node request signal when personnel's process monitoring node and send answer signal to system, personnel's current location is judged with this by system.

2=node R-T unit.Be used to produce electronic identity board that the system interrogation signal enters monitoring node with triggering and finish once and reply, and receive the electronic identity board number information of launching when the electronic identity board is replied.

The 3=signal transmission network.Can be wireless transmission net or cable transmission network, be used for the host computer system that the electronic identity board response message that node is received is transferred to monitoring center.

The 4=host computer system.Finish network signal and receive the conversion storage, personnel positioning is followed the tracks of and management.

5=node request signal.By the system banner code of launching after being modulated into microwave signal that the node R-T unit sends, the electronic identity board among the personnel makes it produce answer signal in the entering signal district in order to trigger.

6=electronic identity board numbering signal.Be subjected to the node request signal to trigger the answer signal that back electronic identity board sends to system when personnel's process monitoring node, this signal is the unique number of electronic identity board self.

Electronic identity board 1 has a shockproof dustproof housing 7, and the lampet 8 of an indication power supply status and the lampet 9 of an index signal emission state are arranged on the housing; There are a battery 11 and corresponding power circuit 12 to provide required working power in the housing for whole electronic identity board; A built-in omnidirectional antenna 10, the power that transmits and receives of this antenna is set in 50 meters radiuses, work in the 2.4G frequency, this antenna links to each other with the ANT I/O mouth of transceiver mode switch switching circuit 18, be subjected to transceiver mode switch switching circuit 18 control by half-duplex work and forked working in the accepting state of node request signal 5 or the emission state of electronic identity board code signal 6; The RX of transceiver mode switch switching circuit [18] _OUTThe RX of line and signal transmitting and receiving module 13 _INThe continuous node request signal [5] that is used for receiving of pin imports electronic identity board, TX into _INLine is through the TX of a power amplifier and signal transmitting and receiving module 13 _OUTPin links to each other and is used for electronic identity board numbering signal 6 is outwards launched, and forms the working mode change parts thus; The trigger unit that one node request signal comparison circuit 14, circuits for triggering 15 are formed; One group of digital encoding signal generating circuit 16 and signal of being made up of train of signal line output treatment circuit 17 that enters operating state after triggered by trigger unit generates parts, and these generations parts provide the DATA IN pin that the numbering signal of this electronic identity board sends into transceiver module 13 and handle rearward-facing antennas transmission electronic identity boards through transceiver module 13 and number signals 6.Electronic identity board 1 structure is referring to accompanying drawing 2 wherein:

5=node request signal.

6=electronic identity board numbering signal.

7=electronic identity board shell.

The 8=indicator of the power supply status.Join with power supply, normally whether indication power supply power supply.

9=emission state indicator light.Join with the RSSI pin of transceiver module 13, index signal receives and the emission operating state.

The 10=antenna.Finish the omnidirectional emission of signal.

The 11=battery.

The 12=power circuit.Be used for civil power or powered battery are converted to the required stabilized power supply of all circuit blocks of device.The utility model adopts common power circuit.

The 13=radio receiving transmitting module.Finishing the reception and the emission of radiofrequency signal handles.TX wherein _OUTPin is through the TX of power amplifier and transceiver mode switch switching circuit 18 _INPin links to each other, RX _INThe RX of pin and transceiver mode switch switching circuit 18 _OUTPin links to each other and to finish signal and receive and signal sends to the work of antenna from antenna, and RSSI pin and emission state indicator light [9] connect so that signal condition demonstration level, GND pin ground connection, V to be provided _DDPin meets power supply input, RX _OUTPin is connected with node request signal comparison circuit 14 with output from antenna reception and the baseband signal after signal demodulation process such as mixing, intermediate frequency amplification, DATA as the output of received signal _INPin is connected reception electronic identity board code signal as the input of electronic identity board code signal with train of signal line output treatment circuit 17.The circuit theory diagrams of transceiver module are referring to accompanying drawing 6 " circuit theory diagrams of transceiver module ".

14=node request signal comparison circuit.Finish the comparison between the systematic identification code that request signal is encoded and the electronic identity board is set.Circuit theory is referring to accompanying drawing 7 " encoding ratio is than circuit theory diagrams ".Circuit produces circuit bank three parts by SI PO shift register group, comparison circuit group and systematic identification code and constitutes.Wherein the SI PO shift register group is under shift instruction (CP pulse) effect, with request signal transceiver module 13 RX _OUTThe digitally coded baseband signal (serial signal) of pin output moves by turn and deposits each single register respectively in, and by the output port of each register, the P of the digital comparator corresponding input end of corresponding tandem type mouth is sent in these signal step-by-steps ₀P ₁P ₂P ₃Pin; Simultaneously, systematic identification code produce circuit bank under the effect of start pulse signal according to S ₀S ₁S ₂S ₃Parallel 2 ary codes that produce systematic identification code of the value that sets, and step-by-step output, each encoder output Y of this encoder group ₀Y ₁Y ₂Y ₃Insert the Q of the digital comparator corresponding input end of tandem type mouth respectively ₀Q ₁Q ₂Q ₃Pin; In the comparison circuit group each independently comparator adopt 4 bit comparators, bear the comparison of a character (4 2 ary codes), conforming to then, the P=Q output will produce a high level (" 1 "), otherwise produce low level (" 0 "), owing to be cascade, when any bit comparator output low level when (not conforming to), the final output of whole comparator stage joint group will be low level (" 0 ").When comparative result conforms to fully, the final output (high level) of comparator stage joint group will form the R of a flip-flop circuit that is attached thereto 15 _DThe end input signal.

The 15=circuits for triggering.Be used to produce a triggering signal.Circuit is to be made of two NOR gate or two NAND gate cross-couplings.The flip-flop circuit principle is referring to accompanying drawing 9 " circuits for triggering schematic diagram ".Among the figure, R _DS _DTwo inputs, wherein R for trigger _DFor directly putting 0 end, S _DFor directly putting 1 end QQ is two complementary output ends, Q=0 when Q=1; Trigger is in 1 state during Q=1, and trigger is in 0 state during Q=0.The R of trigger _DOutput direct and aforementioned system identification code comparison circuit 16 joins.Do not work or comparative result when " not conforming to " (this circuit output low level) when the systematic identification code comparison circuit, trigger keeps normality, does not produce triggering signal; When systematic identification code comparison circuit output high level, R _DHigh level causes trigger to send trigger impulse, and this pulse will trigger code signal generation circuit bank 16 and produce one group of electronic identity board code signal.

16=code signal generation circuit bank.Finish the generation of electronic identity board or node transponder system identification.Circuit theory is referring to accompanying drawing 10 " code signal generation circuit theory diagrams ".Adopt 8421BCD sign indicating number coding principle in the schematic diagram, ' 0 '～' 9 ' digital signal is converted to 2 corresponding carry system code signals, by Y ₃Y ₂Y ₁Y ₀Expression.The output of circuit will be as the D end input of the train of signal line output treatment circuit 17 of next stage.The codimg logic that is adopted can be expressed as following expression formula:

${\mathrm{<figure-callout\; id="2"\; label="Y"\; filenames="Y20042003445200151.png,Y20042003445200211.png"\; state="\{\{state\}\}">Y</figure-callout>}}_2={\stackrel{\&OverBar;}{D}}_4\&CenterDot;\stackrel{\&OverBar;}{{\stackrel{\&OverBar;}{D}}_5\&CenterDot;{\stackrel{\&OverBar;}{D}}_6\&CenterDot;{\stackrel{\&OverBar;}{D}}_7}=D_4+D_5+{\mathrm{<figure-callout\; id="6"\; label="D"\; filenames="Y20042003445200151.png"\; state="\{\{state\}\}">D</figure-callout>}}_6+D_7$

${\mathrm{<figure-callout\; id="1"\; label="Y"\; filenames="Y20042003445200182.png,Y20042003445200211.png"\; state="\{\{state\}\}">Y</figure-callout>}}_1={\stackrel{\&OverBar;}{D}}_2\&CenterDot;\stackrel{\&OverBar;}{{\stackrel{\&OverBar;}{D}}_3\&CenterDot;{\stackrel{\&OverBar;}{D}}_6\&CenterDot;{\stackrel{\&OverBar;}{D}}_7}={\mathrm{<figure-callout\; id="2"\; label="D"\; filenames="Y20042003445200151.png,Y20042003445200211.png"\; state="\{\{state\}\}">D</figure-callout>}}_2+{\mathrm{<figure-callout\; id="3"\; label="D"\; filenames="Y20042003445200151.png"\; state="\{\{state\}\}">D</figure-callout>}}_3+{\mathrm{<figure-callout\; id="6"\; label="D"\; filenames="Y20042003445200151.png"\; state="\{\{state\}\}">D</figure-callout>}}_6+D_7$

${\mathrm{<figure-callout\; id="0"\; label="Y"\; filenames="Y20042003445200211.png"\; state="\{\{state\}\}">Y</figure-callout>}}_0={\mathrm{<figure-callout\; id="1"\; label="D"\; filenames="Y20042003445200182.png,Y20042003445200211.png"\; state="\{\{state\}\}">D</figure-callout>}}_1\&CenterDot;\stackrel{\&OverBar;}{{\stackrel{\&OverBar;}{D}}_3\&CenterDot;{\stackrel{\&OverBar;}{D}}_5\&CenterDot;{\stackrel{\&OverBar;}{D}}_7\&CenterDot;{\stackrel{\&OverBar;}{D}}_9}={\mathrm{<figure-callout\; id="1"\; label="D"\; filenames="Y20042003445200182.png,Y20042003445200211.png"\; state="\{\{state\}\}">D</figure-callout>}}_1+{\mathrm{<figure-callout\; id="3"\; label="D"\; filenames="Y20042003445200151.png"\; state="\{\{state\}\}">D</figure-callout>}}_3+D_5+D_7+D_9$

17=train of signal line output treatment circuit.The digital coding sequence signal of importing that is used for walking abreast becomes the serial output signal.Train of signal line output treatment circuit principle is referring to accompanying drawing 12 " train of signal line output treatment circuit schematic diagram ".CT74LS199 chip wherein is at gate circuit G ₁And G ₂Under the control action, with D ₇D ₆D ₅D ₄D ₃D ₂D ₁D ₀Be converted to the serial output signal, send into the DATA IN pin of signal transmitting and receiving module 13 and after its signal modulation processing and amplifying the answer signal as this electronic identity board send to the node retransmission unit.

18=transceiver mode switch switching circuit.The conversion of the signal reception of control electronic identity board and two kinds of mode of operations of signal emission.Circuit theory is referring to accompanying drawing 5 " transceiver mode switch switching circuit schematic diagram ".Circuit adopts " 2436400-" switch chip.Its chips ANT _I/OPin is connected with antenna; The TX/RX pin is as receiving/mode selector switch, and when this pin input high level, chip is in sending mode, and the radiofrequency signal of electronic identity board radiating circuit is from TX _INAntenna is introduced and be sent to pin; When TX/RX pin input low level, chip is a receiving mode, and the radiofrequency signal that antenna receives is from RX _OUTBe drawn out to receiving circuit.V _DDBe the chip power input.

Node R-T unit 2 has a firm housing 21, be connected with a directional antenna 25 that can receive simultaneously and transmit on the housing, this antenna 25 is when work, and the signal coverage that is incident upon on the road surface forms a node triggering interrogation zone of setting big or small oval in shape; Housing 21 backboards have a wire transmission interface slot 22 and a wireless transmission interface slot 23, and an external power supply socket 24; There is one group of power circuit 27 to provide stable power in the housing for device; And one finished that request signal 5 emission is handled and an electronic identity board numbering signal 6 receives the signal transmitting and receiving module 30 of processing and modulation and the demodulation process of received signal, the wherein TX of signal transmitting and receiving module 30 that transceiver mode switch switching circuit 31 is finished to transmit _OUTLine is through the TX of a power amplifier and transceiver mode switch switching circuit 31 _INPin links to each other and is used for node request signal 5 outwards being launched RX _INThe RX of pin and transceiver mode switch switching circuit 31 _OUTPin links to each other and is used for reception electronic identity board answer signal 6 is formed the signal transmitting and receiving parts thus; The node request signal generation part that set of number formula code signal generation circuit 28 and train of signal line output treatment circuit 29 are formed is finished the generation of request signal and is outputed to the DATA of signal transmitting and receiving module 30 _INPin; And one and signal transmitting and receiving module 30RX _OUTThe electronic identity board numbering signal forwarding processing module 32 that pin links to each other finish receive electronic identity board code signal and make up with this node serial number signal after signal is outputed to wire transmission interface 22 or wireless transmission interface 23 slots for unofficial biography.

Node R-T unit 2 structures are referring to accompanying drawing 3 wherein:

5=node request signal

6=electronic identity board numbering signal

21=node R-T unit shell

22=wire transmission output interface

23=wireless transmission output interface

The 24=external power interface.Be the reference power supply interface.

The 25=antenna

The 26=battery.Be common batteries.Amount of capacity depends on system's microwave transmitting power requirement.

The 27=power circuit.Be the reference power supply circuit.

28=node request signal generative circuit group.Circuit theory is referring to accompanying drawing 11.

29=node request signal train of signal line output treatment circuit.Circuit theory is referring to accompanying drawing 12.

The 30=radio receiving transmitting module.Finishing the reception and the emission of radiofrequency signal handles.TX wherein _OUTPin is through the TX of power amplifier and transceiver mode switch switching circuit 31 _INPin links to each other, RX _INThe RX of pin and transceiver mode switch switching circuit 31 _OUTPin links to each other and to finish signal and receive and signal sends to the work of antenna, GND pin ground connection, V from antenna _DDPin meets power supply input, RX _OUTPin is as the output and the answer signal forwarding module 32RX of received signal _INPin connects with output from antenna reception and the baseband signal after signal demodulation process such as mixing, intermediate frequency amplification, DATA _INPin is connected the receiving node request signal as the input of node request signal with train of signal line output treatment circuit [29].The circuit theory diagrams of transceiver module are referring to accompanying drawing 6.

31=answer signal forwarding module.Adopt programmable single chip computer chip 89C51.Finish the access of electronic identity board answer signal and make up with this node serial number signal after signal is passed through RX _OUTPin outputs to the work for unofficial biography of wire transmission interface [22] and wireless transmission interface 23 slots.Circuit theory is referring to accompanying drawing 13.

Line transmission system 3 adopts traditional computer network transmission mechanism, and wireless transmitting system adopts traditional microwave transmission mechanism.

Host computer system 4 comprises a cover microwave signal centralized processor 37, the cover network switch 38 and a central processing host 39.Microwave signal centralized processor 37 can adopt common microwave receiving main frame, and access network switch 38, this switch can adopt common switch product, as the WS-C3750G-24T-E of U.S. CISCO company, inserts central processing host 39 at last.When wire transmission, the direct access network switch 38 of transmission line, and do not need common microwave receiving main frame 37 as the signal centralized processor.Central authorities' processing host 39 adopts common PC computer configuation, a firm housing 40 is arranged, an interface 43 that is used to connect the network switch is arranged on the housing, an external power interface 42, the interface 46 of an external display unit, an external connection keyboard interface 44, a mouse interface 45, comprise a computer motherboard 41 in the housing, being inserted with a network interface card 47 that is used to connect switch on the mainboard 41 is used for gathering and switching network transmission data, a video card 48 is used for host information and outputs to external display, keyboard interface processing unit and mouse interface processing unit 49, a central processing unit (CPU) 50 is used for system management and working procedure, one group of read-write memory unit (RAM) 51 that is used to deposit process information is used to deposit the ephemeral data that Monitoring Data that front-end collection enters and running software use, hard disk parts (HD) that are used for the long-term storage data that are connected with mainboard 41 52 are preserved all image data and through the result data of special-purpose software processed, be equipped with one in the hard disk parts (HD) 52 and analyze special-purpose software 53, finish entering the registration of monitoring net personal information, data acquisition, functions such as personnel positioning.

The host computer system structure is referring to accompanying drawing 4 wherein:

37=microwave receiving main frame

The 38=network switch

39=central authorities processing host

The 40=host housing

The 41=mainboard.Be the common computer mainboard.

The 42=external power interface.Be the common computer power interface.

The 43=network interface.Be common computer network interface card interface.

44=external connection keyboard interface.Be the common computer keyboard interface

The external mouse interface of 45=.Be the common computer mouse interface.

46=external connection display equipment interface.Be common computer video card interface.

The 47=network interface card.Be the common computer network interface card.

The 48=video card.Be the common computer video card.

49=external connection keyboard/mouse data interface circuit.Be common computer keyboard/mouse interface circuit.

The 50=central processor CPU.Be common computer CPU, as the Pentium-4 chip of American I NTEL company.

51=random access storage device RAM.Be the common computer memory bar.

52=harddisk memory HD.Be the common computer hard disk.

53=dedicated processes software

Mobile and the state exchange of system signal is described as follows:

The state exchange of the answer signal that system produces in request signal that the node R-T unit produces and electronic identity board all has the rule of following characteristics:

Digitally encoded signal → baseband signal → band signal → radiofrequency signal ... (antenna) ... radiofrequency signal → band signal → baseband signal → digitally encoded signal

System interrogation signal: produce by the node R-T unit,, receive by the electronic identity board through the antenna emission.State conversion process is:

● by the state value decision systems identification code of the code switch group of node R-T unit inner setting, handle the 8 system baseband signals that are output as a group (4 characters) and line output through its coding generative circuit; Be converted into the signal of 2 systems ' 1001 ' as numeral ' 9 ';

● this signal is transformed to the baseband signal of serial output by parallel input under sequence circuit control;

● the baseband signal of serial output is output as radiofrequency signal and is admitted to antenna and outwards launch through node signal transceiver module modulation treatment;

● the electronic identity board receives radiofrequency signal described above (system interrogation signal) through antenna, is baseband signal through signal transmitting and receiving module demodulation process;

● baseband signal is through the comparison operation of electronic identity board comparison circuit, and with the validity of judging request signal and form a high level pulse ripple effectively the time, this impulse wave will act on the input of circuits for triggering and make circuits for triggering send a triggering signal.So far, the system interrogation signal condition change-over period finishes.

● electronic identity board answer signal: produce by the electronic identity board,, receive by the node R-T unit through the antenna emission.The system interrogation signal similar that state conversion process and node R-T unit produce, just direction is opposite.Be briefly described as follows:

● determine the encoded radio of this electronic identity board by the status switch value of the code switch group of electronic identity board inner setting, handle the 2 system baseband signals that are output as a group (8 characters) and line output through its coding generative circuit;

● this signal is become the baseband signal of serial output by parallel input under the control of electronic identity board sequence circuit;

● the baseband signal of serial output is output as radiofrequency signal and is admitted to antenna and outwards launch through signal transmitting and receiving module modulation treatment;

● the node R-T unit receives electronic identity board radiofrequency signal described above (electronic identity board answer signal) through its antenna, is baseband signal through node signal transceiver module demodulation process;

● baseband signal is transmitted parts to Network Transmission through node.So far, electronic identity board answer signal state exchange end cycle.

● the signal that the node R-T unit is transmitted to each host computer system of network: be that example is done concise and to the point description here with the wire transmission mode:

● the forwarding parts of node R-T unit synthesize the forwarding data with the electronic identity board answer signal that receives with this node numbering and send to the network output interface, are transferred to network switch receiving port through Network transmission line;

● the utility model main frame is obtained signal from the switch receiving port, or puts into internal memory or deposit hard disk in and use for special-purpose software.

For further specifying the utility model, as follows especially exemplified by example.But content of the present utility model is not limited only to content related among the embodiment.

Electronic identity board 1 adopts the LMX3162 integrated chip of National company in the present embodiment, and this electronic identity board 1 operating frequency is 2.4GHz.Basic circuit structure is referring to accompanying drawing 12.The circuit working principle is:

Node request signal 5 is by the RX of LMX3162 signal transceiver module _INPin enters, and passes through RX after demodulation process _OUTPin outputs to the coding comparison circuit, under the shift pulse effect, signal waveform is sent in each register of shift register group one by one, data in this register are divided into groups and are compared by turn by per 4 one group in CT7485 comparator stage joint group closes with the coded data of the system banner coding circuit output of setting in advance, when all data all conform to, the P=Q end of comparison circuit afterbody will be exported ' 1 ' level, and this level will be as trigger R _DInput causes trigger impulse of trigger output Q output, this pulse will trigger the coding of setting the sign indicating number coding circuit and generate operation, this pulse simultaneously will be delivered to the RX/TX pin of signal switching circuit, be turned to " emission state " to drive this circuit from " accepting state ".Finish reception, conversion and the comparison process of node request signal thus;

Under the trigger impulse effect, represent the code signal of this electronic identity board numbering in the setting code generation circuit of forming by 8 8421 encoders, to produce for one group, this setting sign indicating number is divided into 4 groups for one group by per two characters, the parallel data input D that makes up with the CT744LS199 dynamicizer of cascade is connected respectively, and every group coding signal will be input to the pin D of the CT744LS199 dynamicizer of a correspondence ₀D ₁D ₂D ₃D ₄D ₅D ₆D ₇, finish the serial output transform of parallel data and handle, and from its Q ₀Pin is sent into data the DATA of signal transceiver one by one _INPin, when this group data processing finishes, and-the gate circuit G of string manipulation circuit ₁To export a negative pulse and trigger the work of next CT744LS199 dynamicizer, finish until all data transaction.When afterbody CT744LS199 and a string transducer work finish its gate circuit G ₁With the RX/TX pin of negative pulse of output, with marking signal as ' send and finish ' to signal switching circuit.

From electronic identity board LMX3612 chip DATA _INThe data of pin serial input are through the signal modulation process of electronic identity board, from TX _OUTPin output is launched to antenna through switching circuit.

Node R-T unit 2 adopts the LXM3162 integrated chip of National company in the present embodiment, and these node R-T unit 2 operating frequencies are 2.4GHz; The signal forwarding module adopts the 89C51 single-chip microcomputer.Basic circuit structure is referring to accompanying drawing 13.The circuit working principle is:

Under the impulse action of device internal clock, one group system identification code signal produces in the setting code generation circuit of being made up of 4 8421 encoders, this setting sign indicating number is divided into 2 groups for one group by per two characters, the parallel data input D that makes up with the CT744LS199 dynamicizer of cascade is connected respectively, and every group coding signal will be input to the pin D of the CT744LS199 dynamicizer of a correspondence ₀D ₁D ₂D ₃D ₄D ₅D ₆D ₇, finish the serial output transform of parallel data and handle, and from its Q ₀Pin is sent into data the DATA of signal transceiver one by one _INPin, when this group data processing finishes, and-the gate circuit G of string manipulation circuit ₁To export a negative pulse and trigger the work of next CT744LS199 dynamicizer, finish until the data transaction of two groups of representative system identification codes.When second level CT744LS199 dynamicizer work finishes, its gate circuit G ₁With the RX/TX pin of negative pulse of output, with marking signal as ' send and finish ' to signal switching circuit.

From the data of node R-T unit LMX3612 chip DATAIN pin serial input, through the signal modulation process of node R-T unit, from TX _OUTPin output is launched to antenna through switching circuit.

Electronic identity board answer signal 6 is by the RX of LMX3162 signal transceiver module _INPin enters, and passes through RX after demodulation process _OUTPin outputs to the 89C51 singlechip chip, and this chip is after finishing the signal demodulation process, and this node numbering data that will write in advance automatically among the CMOS are numbered data combination with the electronic identity board that receives, from RX _OUTPin outputs to output interface.Data will be transferred to network through output interface.

System coding System Design example.

The native system coding scheme comprises: systematic identification code, electronic identity board numbering, nodes encoding and host computer system coding.As an embodiment of the present utility model, the coding scheme of native system can adopt following rule:

1, systematic identification code=' 6789 '.

2, electronic identity board numbering is different, adopts 8 characters long, and its inner coding that produces and launch adopts and the identical coding of electronic identity board printed codes.As " 98765432 " etc.

3, nodes encoding adopts 4 codings in order to distinguish different monitoring nodes, as ' 1006 ', ' 1032 ' etc.

Under the coding scheme of this example, the node request signal that each node R-T unit produced is ' 6789 ', this identification code will be by the signal transmitting and receiving module modulation treatment of node R-T unit after antenna launch.

Under the coding scheme of this example, the encoding the response that electronic identity board that is encoded to ' 98765432 ' is launched when node is replied is ' 98765432 '.The nodes encoding of supposing personnel's process is ' 1033 ', after this node R-T unit receives this coding, synthetic this node Monitoring Data: a string node coding+this electronic identity board number information ' 103398765432 ', host computer system be sent and be transferred to these data will to network system.In like manner, after this car arrived ' 1034 ' node, the data that this node sent were ' 103498765432 '.

Claims (7)

1, underground operators locating and tracking system, it is characterized in that electronic identity board (1) carried by underground operators, device by antenna (10) and connected reception request signal (5), transmit coded signals (6) constitutes, node R-T unit (2) be positioned at the tunnel along the line on, be made of the device of antenna (25), received encoded signal (6) and the device of emission request signal (5), the device of received encoded signal (6) is transported to code signal (6) system host (4) that is positioned at monitoring center by transmission system (3).

2, system according to claim 1, it is characterized in that in the housing of electronic identity board (1) power circuit (11) and the transceiver mode switch switching circuit (18) that is connected with built-in omnidirectional antenna (10) being arranged, the input (RX of commutation circuit output and signal transmitting and receiving module (13) _IN) connect, the commutation circuit input is by the output (TX of power amplifier and transceiver module (13) _OUT) connect the output (RX of signal transmitting and receiving module (13) _OUT) successively by signal comparator circuit (14), circuits for triggering (15), code signal generation circuit (16), train of signal line output treatment circuit (17) input (DATA with transceiver module (13) _IN) connect.

3, system according to claim 2, it is characterized in that signal comparator circuit (14) produces circuit (56) and forms by sealing in and going out shifting processing circuit (54), comparison circuit (55) and systematic identification code, the RXOUT end of the 1D termination transceiver module (13) of the registers group of treatment circuit (54), the output of registers group (1D) step-by-step meet the corresponding input end mouth (P of the digital comparator of corresponding tandem type of comparison circuit (55) ₀, P ₁, P ₂, P ₃) pin, the input (Q of comparator ₀, Q ₁, Q ₂, Q ₃) the pin output of each encoder of connection circuit (56) respectively, the encoder input connects button group and trigger impulse is set, cross-linked two NOR gate of the output contact Power Generation Road (15) of comparator or the input R of two NAND gate _DThe output of gate circuit connects the input of the encoder of code signal generation circuit (16), the output of encoder connects the input of the CT74LS199 chip of train of signal line output treatment circuit (17), and the output of chip connects the DATAIN pin of signal transmitting and receiving module (13), and the SH of chip, CD pin meet gate circuit (G ₂), Q _A, Q ₇-Q.Pin meets gate circuit (G ₁), G ₁, G ₂Output connect and to send and to go here and there the complement mark signal.

4, system according to claim 1 is characterized in that node R-T unit (2) has power circuit (27) and the transceiver mode switch switching circuit (31) that is connected with antenna (25), commutation circuit (31) RX _OUTThe RX of end and signal transmitting and receiving module (30) _INEnd connects, commutation circuit (31) TX _INEnd is through the TX of a power amplifier and transceiver module (30) _OUTEnd connects, the RX of transceiver module (30) _OUTThe RX of end and answer signal forwarding module (32) _INEnd connects, the RX of forwarding module (32) _OUTEnd is connected with system host (4) by transmission system (3), and the output of node request signal generative circuit (28) is connected with serial output processing circuit (29), the DATA of the output of circuit (29) and transceiver module (30) _INEnd connects.

5, system according to claim 4 is characterized in that transceiver module (30) is integrated package LMX3162, and signal forwarding module (32) is integrated package 89C51, and transceiver mode switch switching circuit (31) is an integrated package 2436400.

6, system according to claim 4, it is characterized in that node request signal generative circuit (28) has the 8421BCD encoder of some parallel connections, its input termination is provided with button group and trigger impulse, the D of its output terminated serial output processing circuit (29) and CT74LS199 chip ₀-D ₇End, the Q of chip _A, Q ₇-Q.Pin meets gate circuit (G ₁), SH, the CD pin meets gate circuit (G ₂), G ₂End input negative pulse enabling signal, G ₁And G ₂Output output and a string marking signal S that converts, CT74LS199 chip output serial data is to the DATAIN end of transceiver module (30).

7, system according to claim 1, it is characterized in that main frame (4) comprises microwave receiving main frame (37), the network switch (38) and central processing host (39), in the housing (40) of central processing host (39) wherein processing main plate (41) is arranged, central processing unit (50) and memory (51) are arranged on the mainboard (41), (52), network interface card (47), video card (48), external connection keyboard/mouse data interface circuit (49) connects, network interface card (47) is connected with the network switch (38) by interface (43), and the network switch (38) is connected with microwave receiving main frame (37) or/and forwarding module (32).

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