CN103344994B - A kind of distributed Transient Electro-magnetic Data Acquisition System based on wireless sensor network - Google Patents
A kind of distributed Transient Electro-magnetic Data Acquisition System based on wireless sensor network Download PDFInfo
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Abstract
The present invention relates to a kind of distributed Transient Electro-magnetic Data Acquisition System based on wireless sensor network, by industrial computer, telegon and the many groups router node laid flexibly and terminal acquisition node, based on wireless sensor network, networking is formed, described industrial computer is connected with telegon by USB, terminal acquisition node, router node and each node of telegon are all by radio interconnected; Terminal acquisition node is for completing the collection of transient electromagnetic data and uploading; Router node has been used for routing addressing and data retransmission function; Telegon is for completing the storage of image data, display and usb communication; Industrial computer is used for the control of each node gatherer process and presenting of data, completes the calculating to the data exploration parameter obtained.Data acquisition system (DAS) of the present invention has higher surveying accuracy, eliminates connecting line between node and node, facilitates field operation, increases work efficiency, and node adopts modular design, is convenient to safeguard and change.<!--1-->
Description
Technical field
The present invention relates to geophysical exploration science and technology field, particularly a kind of distributed Transient Electro-magnetic Data Acquisition System based on wireless sensor network.
Background technology
Transient electromagnetic detecting technology is a kind of conventional geophysical probing technique, be widely used in resource exploration, tectonic structure detects, environmental survey and monitoring, reservoir basin substrate and the exploration of dam site crack etc., played the effect that can not be substituted at geophysical exploration Instrument technology field.
Traditional transient electromagnetic detecting adopts single track to launch, the mode of operation that single track receives, in order to strengthen signal to noise ratio (S/N ratio), improve acquisition precision, the method of usual employing time domain superposition, the electromagnetic signal cycle superposition namely will gathered, then averages eliminate environment electromagnetics interference noise and gather stochastic error, the number of times of superposition is more, and the time of collection is also longer.Distributed transient electromagnetic detecting system then adopts multiple receiver to line up array and synchronously receives transition secondary field signal, the superposition in territory, implementation space.The ability of distributed transient electromagnetic detecting system restraint speckle is strong, measures efficiency high, can obtain a large amount of observation datas, to realize accurate inversion interpretation.
In recent years, wireless sensor network technology is flourish, wireless sensor network has microminiaturization, the feature such as low cost and low-power consumption of Self-organization and node, wireless sensor network technology is applied in the collection of distributed transient electromagnetic data, the Multipoint synchronous collection to search coverage can be realized, improve detection efficiency, obtain a large amount of observation datas, the accurate surveying image of observation area can be obtained.
Summary of the invention
The object of the invention is for existing transient electromagnetic detecting apparatus measures efficiency low, data volume is few, and precision is lower, can only realize the deficiency that single track receives, and provide a kind of multipoint acquisition based on wireless sensor network, the distributed Transient Electro-magnetic Data Acquisition System of networking flexibility.
In order to achieve the above object, the technical scheme that the present invention takes is: provide a kind of distributed Transient Electro-magnetic Data Acquisition System based on wireless sensor network, comprise industrial computer, telegon, terminal acquisition node and router node;
The distributed Transient Electro-magnetic Data Acquisition System of described wireless sensor network is made up of industrial computer, telegon and the many groups router node laid flexibly and the networking based on wireless sensor network of terminal acquisition node, described industrial computer is connected with telegon by USB, telegon and organize router node, telegon more and organize terminal acquisition node, router node and router node more, between router node and terminal acquisition node all by radio interconnected;
Described terminal acquisition node comprises 24 high precision analogue converting units, field programmable logic device FPGA unit, and GPS synchronization module and wireless communication unit complete the collection of twin-channel transient electromagnetic data and upload;
Described router node is made up of wireless communication unit and power module, completes routing addressing and data retransmission function;
Described telegon contains wireless communication unit, micro controller unit, data storage control unit, touch liquid crystal display unit, for completing the storage of image data, display and usb communication;
Described industrial computer runs its monitoring software, for the control of each node gatherer process and presenting of data, the basis completing each terminal acquisition node data acquisition completes the calculating of exploration parameter.
The touch liquid crystal display unit of described telegon adopts electric resistance touch-control LCDs.
Described telegon, radio communication between router node and terminal acquisition node adopt Zigbee protocol to set up wireless sensor network.The step of described telegon, router node and the networking of terminal acquisition node is: after telegon initialization completes, first scanning channel, find out the optimum channel that current location sets up network, then select a PANID to identify as this network of network, network has been set up rear telegon and has been started to intercept channel; Send request after terminal acquisition node and router node power on and add network data frame, telegon allows it to add network after receiving Frame, and distributes mailing address in unique 16 nets for it.
Described telegon, router node and terminal acquisition node telegon all adopt high-performance lithium battery as power supply, can improve the time of the portability of equipment, extension device field work.
Terminal acquisition node of the present invention gathers simulating signal by sensor, sensor is connected with low-noise simulation signal condition unit, low-noise simulation signal condition unit is connected with 24 high precision analogue converting units, field programmable logic device FPGA unit is connected with GPS synchronization module and low-noise simulation signal condition unit respectively, field programmable logic device FPGA unit also respectively with 24 high precision analogue converting units and wireless communication unit two-way interconnected;
In described terminal acquisition node, field programmable logic device FPGA unit is connected with two sensors signal end through two-way 24 high precision analogue converting units, low-noise simulation signal condition unit, the ability making terminal acquisition node have two-channel 2-4 4 high precision transient electromagnetic data simultaneously to gather.
After the wireless communication unit of terminal acquisition node of the present invention receives data acquisition instructions, system operational parameters is set according to instruction, gathers transient electromagnetic signal; Transient electromagnetic signal is through low-noise simulation signal condition unit, and be converted to digital quantity after 24 high precision analogue converting units, data temporary storage is in FPGA internal RAM; FPGA completes the logic control of whole signal condition unit and 24 AD conversion unit; Wireless communication unit reads the data in RAM and is packaged into one-node network image data bag, wirelessly sends to router node or directly sends to telegon.
Telegon of the present invention is by the packet of the different terminals acquisition node received and/or receive after the packet forwarded through router node carries out processing, integrates, be temporary in static data storer SRAM, described data manipulate setting according to user, shown or transferred to industrial computer by USB or be stored to USB storage by touch liquid crystal display unit.
Telegon of the present invention is by touch liquid crystal display unit configuration-system running parameter, or carry out configuration-system running parameter by industrial computer operation monitoring software, the acquisition instructions that telegon sends comprises acquisition system active configuration parameter, terminal acquisition node according to configuration parameter work, Gather and input transient electromagnetic signal.
The micro controller unit of telegon of the present invention reads historical data and result by data storage control unit from described USB storage, and shows at touch liquid crystal display unit.
The distributed Transient Electro-magnetic Data Acquisition System that the present invention is based on wireless sensor network compared with prior art has the following advantages:
1, the present invention adopts wireless sensor network, namely Zigbee wireless communication technology is as the correspondence entity framework of distributed Transient Electro-magnetic Data Acquisition System, adapt to the feature of distributed measurement, wireless sensor network has microminiaturization, the feature such as low cost and low-power consumption of Self-organization and node, wireless sensor network technology is applied in the collection of distributed transient electromagnetic data, the Multipoint synchronous collection to search coverage can be realized, improve detection efficiency, obtain a large amount of observation datas, to obtain the accurate surveying image of observation area.
2, Transient Electro-magnetic Data Acquisition System of the present invention can reduce electromagnetic interference noise by multicycle superposed average, but for low frequency signal, because frequency is low, cycle is long, the repeated sampling longevity of service in a large amount of cycle, efficiency are low, and power consumption is large, therefore acquisition node needs higher precision and degree of stability.Terminal acquisition node of the present invention adopts low-noise simulation signal condition unit and 24 high precision analogue converting units can reduce the interference of electromagnetic noise, realizes high precision, the collection of high-resolution transient electromagnetic signal.
3, telegon of the present invention adopts CY7C68013 to realize the usb communication interface with industrial computer, support plug and play, easy to use, industrial computer operation monitoring software, the control of each node gatherer process and presenting of data can be realized, the basis completing the acquisition of each detecting terminal node data completes the calculating of exploration parameter.
Accompanying drawing explanation
Fig. 1 is the distributed Transient Electro-magnetic Data Acquisition System structural representation that the present invention is based on wireless sensor network.
Fig. 2 is terminal acquisition node structural representation of the present invention.
Fig. 3 is router node structural representation of the present invention.
Fig. 4 is telegon structural representation of the present invention.
Fig. 5 is terminal acquisition node workflow diagram of the present invention.
Fig. 6 is telegon workflow diagram of the present invention.
Fig. 7 is that an embodiment schematic diagram arranged by distributed reception coil of the present invention.
Fig. 8 is telegon one embodiment mounting structure schematic diagram of the present invention.
Fig. 9 is terminal acquisition node one embodiment mounting structure schematic diagram of the present invention.
Figure 10 is router node one embodiment mounting structure schematic diagram of the present invention.
In above-mentioned figure: 1-telegon casing, 2-panel, 3-LCDs, 4-telegon antenna, 5-power switch, 6-USB interface, 7-middle layer dividing plate, the transmission of 8-data and storage Control card, 9-telegon power supply, 10-telegon wireless communication unit board; 11-terminal acquisition node, 12-GPS antenna, 13-terminal acquisition node antenna, 14-data collecting card, 15-receiving coil interface A, 16-terminal acquisition node wireless communication unit board, 17-terminal acquisition node power supply, 18-receiving coil interface B; 21-router node, 22-router node antenna, 23-router node wireless communication unit board, 24-router node power supply; 31-transmitting coil, 32-receiving coil.
Embodiment
Below in conjunction with drawings and Examples, detailed specific description is done to the distributed Transient Electro-magnetic Data Acquisition System based on wireless sensor network of the present invention.
Embodiment 1: a kind of distributed Transient Electro-magnetic Data Acquisition System based on wireless sensor network of the present invention, one-piece construction as shown in Figure 1.The distributed Transient Electro-magnetic Data Acquisition System of described wireless sensor network is made up of industrial computer, telegon and the many groups router node laid flexibly and the networking based on wireless sensor network of terminal acquisition node, described industrial computer is connected with telegon by USB, telegon with organize router node, telegon more and organize terminal acquisition node, router node and router node, router node and terminal acquisition node all by radio interconnected more;
Terminal acquisition node, router node and telegon three kinds of nodes are provided with in system, communicated by wireless channel between each node, communication frequency selects 2.4G frequency range, and ZigBee technology sets up wireless sensor network, and message transmission rate is up to 250Kbps.Terminal acquisition node is packed after gathering electromagnetic signal according to steering order and system configuration parameter and is directly sent to telegon, or is sent to mediators handle in a multi-hop fashion by router node; Telegon is temporary in SRAM after the processing data packets of the different nodes received being integrated; Telegon is by touch liquid crystal display unit configuration-system running parameter, or carry out configuration-system running parameter by industrial computer monitoring software, telegon send acquisition instructions comprise acquisition system active configuration parameter, terminal acquisition node according to configuration parameter work, Gather and input electromagnetic signal; The data storage control unit of telegon is according to the data of each terminal acquisition node of setting recording and result.
See Fig. 2, it is terminal acquisition node structural representation of the present invention.Terminal acquisition node comprises low-noise simulation signal condition unit, 24 AD conversion unit (A/D), field programmable logic device, GPS synchronization module and wireless communication unit.Low-noise simulation signal condition unit comprises enlarge leadingly, filtering conditioning and rear class programming amplifying three part, enlarge leadingly realizes amplifying with the impedance transformation of sensor and signal and strengthening the driving force of late-class circuit, filtering modulate circuit suppresses outside electromagnetic interference signal, and useful signal is obtained best amplification by rear class programming amplifying.24 AD conversion unit adopt 24 ∑-△ analog to digital converter AD7762 of high-performance, low-power consumption, it possesses the input of broadband differential signal, 16 two-way simultaneous data-interfaces, switching rate reaches as high as 625Ksps, adopt high-precision voltage reference source, make the resolution of system reach microvolt level level.Be converted to digital quantity after 24 high precision analogue converting units, data temporary storage is in FPGA internal RAM; FPGA completes the logic control of whole signal condition unit and 24 AD conversion unit.Wireless communication unit adopts the second generation ZigBee chip CC2530 of TI company, this chip has enhancement mode 8051 kernel, chip further comprises DMA and RF wireless communication module simultaneously, the demand of data transmission and radio communication can not only be met, there is the advantages such as volume is little, low in energy consumption, external circuit is few simultaneously.The RF radio receiving transmitting module of CC2530 is operated in 2.4GHz frequency range, this frequency range is one of two frequency ranges of IEEE802.15.4 definition, this frequency range has divided altogether 16 physical channels, traffic rate is 250Kbps, can meet the requirement of system for traffic rate completely.In addition, chip is also integrated with the SRAM of 8K, 32/64/128/256KB flash block is the non-volatile program storage that equipment provides interior circuit programmable, and the present invention uses CC2530F32 chip to have the flash memory of 256K, is large enough to hold complete ZigBee radio protocol stack and personal code work.Due under the condition of distributed measurement, the spacing of launching and receiving is far, and receiver is array synchro measure, traditional line locking can not meet actual measurement requirement, must use GPS simultaneous techniques, GPS synchronization module adopts GPS control circuit to provide high-precision synchronizing signal for system.Terminal acquisition node mainly completes the collection of twin-channel transient electromagnetic data and uploads.
Fig. 3 is router node structural representation of the present invention.Router node is responsible for multi-hop and is forwarded the packet that terminal acquisition node is sent to telegon.Because the communication distance of node is limited, in the router node guarantee net that monitored area can be fixed according to certain network topology result layout, communication link is unimpeded, reduces the generation of data packetloss.Router node is made up of power module and wireless communication unit, and wireless communication unit selects CC2530F32 chip.
Fig. 4 is telegon structural representation of the present invention.Telegon contains wireless communication unit, micro controller unit, data storage control unit, touch liquid crystal display unit.Wireless communication unit still selects CC2530F32 chip, micro controller unit adopts CY7C68013 chip, this integrated chip USB2.0 transceiver, 8051 strengthen microcontroller, programmable input and output pin etc., the high-speed transfer of the highest 480Mb/s of USB2.0 transceiver support, the present invention adopts CY7C68013 to realize the USB high speed data transfer with industrial computer.Described data storage control unit adopts integrated document storage management controller CH376, CH376 internal USB agreement and FAT file system firmware, supports the portable non-volatile memory medium of Large Copacity, as SD card or Large Copacity USB flash drive.Described touch liquid crystal display unit adopts industrial electro resistive touch screen.Described telegon mainly completes the usb communication with industrial computer, the storage of image data, and data show.
Fig. 5 is terminal acquisition node workflow diagram of the present invention.The specific works process of described terminal acquisition node is:
1. system initialization add network;
2. the wait-receiving mode telegon control command of sending and system acquisition configuration parameter;
If 3. there is control command to arrive, first judge that this order is data acquisition command, forward to and perform next step, otherwise after doing respective handling, forward 2. step wait telegon order to;
4. system operational parameters is set according to instruction and system configuration parameter;
5. start A/D conversion, the electromagnetic signal after signal condition is converted to digital signal;
6. judge whether A/D conversion completes, and does not complete, waits for that it converts, be temporary in the RAM memory block of FPGA inside after converting;
7. whether counting of judging to gather reach the default of system parameter setting and count, and is less than that presetting counts then continues to perform A/D transfer process, reaches to preset and count, perform next step;
8. wireless communication module reads image data and is packaged as the image data bag of single node from the RAM of FPGA stores, and sends to telegon;
9. Packet Generation completes, and turns to 2. to walk.
In order to reduce the power consumption of terminal acquisition node.Wait for that at node in the process of telegon control command, node works in low-power consumption mode, reduce the battery loss of node, thus extend the working time of node.
Fig. 6 is telegon workflow diagram of the present invention.Telegon is the maincenter of whole system, is responsible for the electromagnetic data that each terminal acquisition node of collection sends downwards, and sends control command to each node; Upwards then complete the display of the data collected, store and be transmitted to industrial computer, and obtain the configuration parameter of data acquisition command and system from touch screen or industrial computer.The specific works process of described coordinator node is:
(1) system initialization building network;
(2) the collection control command that touch screen or industrial computer send and system configuration parameter is waited for;
(3) if there is control command to arrive, first judge that this order is data acquisition control instruction, perform next step if then forward to, otherwise after doing respective handling, forward (2) step wait touch screen or industrial computer steering order to;
(4) to terminal acquisition node broadcast transmission data acquisition instructions;
(5) wait for and receive the one-node network image data bag that in net, all terminal acquisition nodes send;
(6) all single-node data bags received are integrated, be temporary in SRAM;
(7) judge whether to store data, if store data, perform data and store, data store complete, perform next step, if store without the need to data, then directly perform next step;
(8) microcontroller CY68013 reads the data in FIFO, and then send it to Touch-control liquid crystal display screen by serial ports, Touch-control liquid crystal display screen is according to the die-away curve of Plotting data transient electromagnetic secondary field;
(9) judge whether to send data to industrial computer, if the configuration of original system configuration parameter sends data to industrial computer, then perform next step, otherwise forward step (2) to;
(10) send packet by USB to industrial computer, after data are sent, forward step (2) to.
Fig. 7 is that an embodiment arranged by the distributed reception coil adopted in the present invention.Receiving coil 32 is positioned in transmitting coil 31, and the number of receiving coil 32 is determined according to the size of search coverage, and the lead-in wire of receiving coil 32 is connected to the input end of analog signal of terminal acquisition node 11.
Fig. 8 is one embodiment of the invention telegon mounting structure schematic diagram.Described instrument mounting structure comprises telegon casing 1, panel 2, LCDs 3, telegon antenna 4, power switch 5, USB interface 6, middle layer dividing plate 7, data transmission and storage Control card 8, telegon power supply 9, telegon wireless communication unit board 10.Telegon antenna 4 is arranged on panel 2, and telegon antenna 4 is detachable; Telegon antenna 4 is connected with telegon radio communication board 10 by concentric cable; LCDs 3 is arranged in the middle of panel 2; Power switch 5 is positioned on panel 2, is the battery main switch of whole telegon; USB interface 6 has two, is positioned on panel 2 side by side, and wherein 1 USB interface connects industrial computer, and another USB interface supports that the data of USB flash drive store; Telegon wireless communication unit board 10 and data transmits and are fixed on central dividing plate 7 with storage Control card 8, and jumbo telegon power supply 9 provides power supply for whole telegon.
Fig. 9,10 is terminal acquisition node of the present invention and router node mounting structure one embodiment.In Fig. 9, terminal acquisition node 11 mounting structure comprises gps antenna 12, terminal acquisition node antenna 13, data collecting card 14, receiving coil interface A15, terminal acquisition node wireless communication unit board 16, terminal acquisition node power supply 17, receiving coil interface B18.
In Figure 10, router node 21 mounting structure comprises router node antenna 22, router node wireless communication unit board 23, router node power supply 24.
Described terminal acquisition node 11 all adopts aluminium shell with the entity of router node 21, firm small and exquisite, can adapt to severe field environment simultaneously; Terminal acquisition node power supply 17, router node power supply 24 all adopts high-capacity lithium battery, to extend System production time; Router node antenna 22 is connected with router node wireless communication unit board 23 by concentric cable, and terminal acquisition node antenna 13 saves wireless communication unit board 16 by concentric cable and terminal collection and is connected.
Distributed Transient Electro-magnetic Data Acquisition System based on wireless sensor network of the present invention adopts Zigbee protocol to set up wireless sensor network, the MANET process of search coverage node:
All be embedded with Zigbee protocol stack in the wireless communication unit CC2530 chip of the three types node of native system, use ZStack-CC2530-2.4.0-1.4.0 protocol stack version.Because system node is more, networking is complicated, adopts the heterogeneous network topological structure of the multiple router of band, in ZigBee-network, only have telegon just to have the right of building network, after coordinator node building network, allow the node of other non-coordinator types to add this network.
The step of terminal acquisition node, router node and telegon networking is: after telegon initialization completes, first scanning channel, find out the optimum channel that current location sets up network, then a PANID is selected to identify as this network of network, network has been set up rear telegon and has been started to intercept channel, waits for that other nodes add network; Send request after terminal acquisition node and router node power on and add network data frame, telegon allows it to add network after receiving Frame, and distribute mailing address in unique 16 nets for it, if terminal acquisition node directly can not add network, network can also be added by neighbouring router node.After network construction success, terminal acquisition node and router node are all periodic, and to telegon transmission packet, data comprise the network address of this node, and telegon just can use this network address to communicate with this node.
In an embodiment of the present invention, preferential, described terminal acquisition node adopts field programmable gate array (FPGA) device, model is EP1C12T144 chip, this type FPGA device has suitable logical resource, pin resource and memory resource, control and being buffered in a slice FPGA device of data of signal acquisition process complete, and the resource of device obtains utilizing the most fully, and performance reaches optimum.
In the present embodiment, selected chip is only citing, wherein center-control processing module adopts field programmable gate array (FPGA) device can select that resource is suitable, the fpga chip of low-power consumption, obtain better performance, reduce the power consumption of terminal acquisition node, lengthen working hours; Data memory module can select the controller of other any energy supported datas storages and file management; Towards exploring occasion on a large scale, storage medium can select more jumbo solid state hard disc.
Distributed Transient Electro-magnetic Data Acquisition System based on wireless sensor network provided by the invention has higher surveying accuracy, eliminate connecting line between node and node, facilitate field operation, increase work efficiency, node adopts modular design, is convenient to safeguard and change.
Claims (8)
1., based on a distributed Transient Electro-magnetic Data Acquisition System for wireless sensor network, comprise industrial computer, telegon, terminal acquisition node and router node; It is characterized in that:
The distributed Transient Electro-magnetic Data Acquisition System of described wireless sensor network is made up of industrial computer, telegon and the many groups router node laid flexibly and the networking based on wireless sensor network of terminal acquisition node, described industrial computer is connected with telegon by USB, telegon and organize router node, telegon more and organize terminal acquisition node, router node and router node more, between router node and terminal acquisition node all by radio interconnected;
Described terminal acquisition node comprises 24 high precision analogue converting units, field programmable logic device FPGA unit, and GPS synchronization module and wireless communication unit complete the collection of twin-channel transient electromagnetic data and upload;
Described router node is made up of wireless communication unit and power module, completes routing addressing and data retransmission function;
Described telegon contains wireless communication unit, micro controller unit, data storage control unit, touch liquid crystal display unit, for completing the storage of image data, display and usb communication;
Described industrial computer runs its monitoring software, for the control of each node gatherer process and presenting of data, the basis completing each terminal acquisition node data acquisition completes the calculating of exploration parameter.
2. a kind of distributed Transient Electro-magnetic Data Acquisition System based on wireless sensor network according to claim 1, is characterized in that: the touch liquid crystal display unit of described telegon adopts electric resistance touch-control LCDs.
3. a kind of distributed Transient Electro-magnetic Data Acquisition System based on wireless sensor network according to claim 1, is characterized in that: described telegon, radio communication between router node and terminal acquisition node adopt Zigbee protocol to set up wireless sensor network.
4. a kind of distributed Transient Electro-magnetic Data Acquisition System based on wireless sensor network according to claim 1, it is characterized in that: described terminal acquisition node gathers simulating signal by sensor, sensor is connected with low-noise simulation signal condition unit, low-noise simulation signal condition unit is connected with 24 high precision analogue converting units, field programmable logic device FPGA unit is connected with GPS synchronization module and low-noise simulation signal condition unit respectively, field programmable logic device FPGA unit also respectively with 24 high precision analogue converting units and wireless communication unit two-way interconnected,
In described terminal acquisition node, field programmable logic device FPGA unit is connected with two sensors signal end through two-way 24 high precision analogue converting units, low-noise simulation signal condition unit, the ability making terminal acquisition node have two-channel 2-4 4 high precision transient electromagnetic data simultaneously to gather.
5. a kind of distributed Transient Electro-magnetic Data Acquisition System based on wireless sensor network according to claim 1, it is characterized in that: after the wireless communication unit of described terminal acquisition node receives data acquisition instructions, system operational parameters is set according to instruction, gathers transient electromagnetic signal; Transient electromagnetic signal is through low-noise simulation signal condition unit, and be converted to digital quantity after 24 high precision analogue converting units, data temporary storage is in FPGA internal RAM; FPGA completes the logic control of whole signal condition unit and 24 AD conversion unit; Wireless communication unit reads the data in RAM and is packaged into one-node network image data bag, wirelessly sends to router node or directly sends to telegon.
6. a kind of distributed Transient Electro-magnetic Data Acquisition System based on wireless sensor network according to claim 1, it is characterized in that: described telegon is by the packet of the different terminals acquisition node received and/or receive after the packet forwarded through router node carries out processing, integrates, be temporary in static data storer SRAM, described data manipulate setting according to user, shown or transferred to industrial computer by USB or be stored to USB storage by touch liquid crystal display unit.
7. a kind of distributed Transient Electro-magnetic Data Acquisition System based on wireless sensor network according to claim 1, it is characterized in that: described telegon is by touch liquid crystal display unit configuration-system running parameter, or carry out configuration-system running parameter by industrial computer operation monitoring software, the acquisition instructions that telegon sends comprises acquisition system active configuration parameter, terminal acquisition node according to configuration parameter work, Gather and input transient electromagnetic signal.
8. a kind of distributed Transient Electro-magnetic Data Acquisition System based on wireless sensor network according to claim 6, it is characterized in that: the micro controller unit of described telegon reads historical data and result by data storage control unit from described USB storage, and show at touch liquid crystal display unit.
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