CN101975608A - Wireless blasting vibration monitoring system capable of freely networking and control method - Google Patents

Abstract

The invention discloses a wireless blasting vibration monitoring system capable of freely networking and a control method. A vibration sensor interface is respectively connected with a multi-channel analog switch which is connected with an attenuator and an amplifier which are in parallel, the attenuator and the amplifier are respectively connected with a low pass filter, the output end of the low pass filter is connected with the input end of an A/D converter, the output end of the A/D converter is connected with a CPLD (Complex Programable Logic Device) control logic which is respectively connected with a crystal oscillator, a DPRAM (Double Port Random Memory) and an EEPROM (Electrically Erasable Programmable Read - Only Memory), an MCU 224 (Microprogrammed Control Unit) is connected with the CPLD control logic, and a wireless transmission module is connected with the MCU through an RS232 interface. In the control method, an acquiring node is integrally initialized: a USB interface is requested to connect an application software; the acquiring node is successfully connected with a PC machine application software, the acquiring node as an acquiring center works; the acquiring node as an acquiring sub node works under the control of an acquiring center node; and the acquiring node as the acquiring sub node starts automatic monitoring. The invention has the advantages of convenient installation, low cost, high efficiency and stable signal, and solves the problem in the blasting vibration monitoring system.

Description

Wireless explosion vibration monitor system and control method that can free networking

Technical field

The present invention relates to the monitoring rock and soil engineering Instrument technology field, more specifically relate to a kind of wireless explosion vibration monitor system that can free networking, also relate to the control method that one of them acquisition node of a kind of Blast Vibration Monitoring system is carried out simultaneously, be used to monitor multiple blasting vibration engineering site.

Background technology

Along with the high speed development of China's economic construction, increasing blasting engineering and explosion experiment need be in the cities, mine, road and bridge, water power seismograph station and other have the place of important engineering construction to carry out.Because the shock wave that blasting vibration produces, dust, noise etc. can produce harm to surrounding buildings thing, soil layer landforms, residential block etc., so these local Blast Vibration Monitoring work seem particularly important.

Usually lay a plurality of sensors simultaneously around need be at the explosion scene and carry out Blast Vibration Monitoring, data monitored transfers to the comparatively safe place far away from the scene again and carries out analyzing and processing.The vibration transducer that is laid in around the explosion scene is called the collection child node together with signals collecting and simple process circuit, is called the collection Centroid at the circuit or the instrument that data monitored are carried out analyzing and processing at a distance.Common onepull monitoring needs to lay several and gathers child nodes and a collection Centroid.Operating personnel observe the monitoring analysis result gathering Centroid, simultaneously long-rangely control gathering child node.

The collection child node network construction of traditional Blast Vibration Monitoring system is used cable technology mostly, need gather child node and gather between the Centroid and lay cable.The Minimate Pro4 type vibration monitor of producing as Canadian Instantel company limited, the USB3850 type blasting vibration registering instrument that Chengdu VIDTS Dynamic Instrument Co., Ltd. produces, the WS-B24 type specialty blasting vibration registering instrument that Beijing Wavespectrum ﹠ Science ﹠ Technology Co., Ltd. produces etc.There is very big limitation in the collection child node network of above-mentioned each wired vibration monitor system: at first, wiring material and artificial cost are higher, especially in the abominable area of environment such as mountain area, field, often for finishing once the explosion monitoring in several seconds, the time that spend connects up; Secondly, Blast Vibration Monitoring work has movability at any time, causes the frequent wiring of field monitoring needs, and work efficiency is lower; In addition,, as mountain behind, can't connect up at all, cause monitoring not imperfect comprehensively at some special monitoring point.

In the prior art, the collection child node network struction of Blast Vibration Monitoring system also has adopts wireless mode, mainly contains dual mode: mobile communications network and common wireless transmitter module.The former collection child node adopts mobile communications network (as GSM, CDMA, telecommunications etc.) to communicate with the collection Centroid.This mode not only needs to pay a communication cost, and in the abominable area of environment such as mountain area, field, because the mobile communications network instability, even have network blind area of coverage, can't satisfy the field monitoring needs.The common wireless transmitter module that the latter adopts data radio station to use communicates, open up the UBOX5016 type blasting vibration intelligent monitor that general survey control Science and Technology Ltd. produces as Sichuan, system adopts WLS 9600 wireless transport modules, for any wireless data transmission pattern, distributed data acquisition pattern, can realize remote multiple spot vibration measuring to multiple spot.There is the little problem of network coverage area in this mode, and coverage has only tens usually, hundreds of rice, often also can't satisfy on-the-spot needs.Even adopt the bigger transmitter module of emissive power can improve network coverage area, as above-mentioned BOX5016 type blasting vibration intelligent monitor, theory can reach barrier-free wireless control in 1000 meters, but introduces the problem that cost is too high, power consumption is excessive simultaneously.

More than two kinds of wireless networking modes the collection child node with gather that Centroid is all point-to-point directly to be communicated.When the collection child node does not connect with the collection Centroid, to gather Centroid and just stop gathering the control of child node, often just break-off this moment of collection child node is no longer carried out data acquisition, until transmission network UNICOM again.So just, cause data to leak and adopt, influenced monitoring result.

In sum, the Blast Vibration Monitoring system ubiquity of prior art wiring inconvenience, move that inconvenience, cost are high, limited transmission distance between poor stability, troublesome poeration, node, poor signal, can not the off-line record etc. problem.

Summary of the invention

The objective of the invention is to be to provide a kind of wireless explosion vibration monitor system that can free networking, any one acquisition node both can be used as to be gathered child node and uses also to can be used as and gather Centroid and use, can be according to the field condition flexible arrangement.Any one acquisition node connects PC just as gathering Centroid, can carry out functions such as acquisition controlling, data analysis and demonstration; The acquisition node that does not connect PC is just as gathering child node, connecting vibration transducer carries out data acquisition on the one hand, as the route relaying other is gathered data forwarding that child node sends to gathering Centroid on the other hand, this system is easy for installation, networking convenient, wiring cost is low, efficient is high, signal stabilization, but and off-line record, store data in a large number, solved the problems that the Blast Vibration Monitoring system of the described prior art of preamble exists.

 

Another object of the present invention is to be to provide a kind of control method of carrying out of one of them acquisition node of wireless explosion vibration monitor system that can free networking, carries out control analysis or carries out image data, route relaying as gathering child node as gathering Centroid.

For solving the problems of the technologies described above, the invention provides a cover based on the Zigbee wireless communication technology can free networking the Blast Vibration Monitoring system, child node is gathered by 0 ~ 64 by system and a collection Centroid is formed, and each node all contains the Zigbee wireless communication module.It is identical with the kernal hardware circuit of gathering Centroid to gather child node, and the Control Software of each node also can be general, is referred to as acquisition node at this.Control Software can according to hereinafter described a kind of can free networking the control method carried out of one of them acquisition node of wireless explosion vibration monitor system write, vibration monitor system software SR-Vib(as applicant's independent development has applied for software copyright registration, registration number 2010SR043668).This acquisition node and special vibrating sensor are connected to form the collection child node, and acquisition node and PC (or other demonstration, input equipment) are connected to form the collection Centroid.Gather child node and have routing function, when certain collection child node exceeds the efficient communication scope with the distance of gathering Centroid, perhaps there is the object of house and trees and so on to block, or when situations such as Electromagnetic Interference are arranged, this acquisition node can search contiguous separately collection child node automatically, automatically communicate by letter with gathering Centroid by other route relayings of gathering child node step by step, realize the self-organization of whole network and recovery certainly.Networking mode also can adopt 433MHz RFID wireless communication technology, other modes such as WIFI, UWB except that the Zigbee technology, its principle is basic identical, just the Zigbee wireless communication module that uses in each node is replaced by corresponding wireless communication module.

Directly or indirectly all do not connect under the situation of gathering Centroid in the collection child node, the collection child node will not gathered Centroid and be controlled, and automatically switch to strange land off-line working pattern.During the initialization of wireless explosion vibration monitor system, gathering child node is synchronous with the clock setting of gathering Centroid.Under the off-line working pattern of strange land, to gather child node and will sample with predefined sampling parameter, the data storage of collection has independent collection, separate, stored function in gathering this machine of child node.After the data collection task of onepull vibration monitoring is finished, can find the collection child node of off-line working, will be stored in the data of gathering in this machine of child node by wired or wireless mode and read, comprehensively other data of gathering the child node collection are analyzed.Because it is synchronous gathering the clock of child node and collection Centroid, just can find the collection child node to collect data constantly in the corresponding moment according to the explosion of gathering the Centroid record.

A kind of wireless explosion vibration monitor system that can free networking, it is by the vibration transducer interface, multiway analog switch, amplifier, attenuator, low-pass filter, A/D converter, the CPLD steering logic, MCU, the FLASH storer, USB interface, wireless transport module, the both-end random access memory, electricallyerasable ROM (EEROM) is formed, it is characterized in that: the CPLD steering logic comprises triggering controlling of sampling unit, triggered time record cell and dividing frequency control circuit, the vibration transducer interface links to each other with a plurality of input ends of multiway analog switch respectively, the output terminal of multiway analog switch correspondence and attenuator side by side, amplifier, amplifier links to each other, attenuator, amplifier, amplifier links to each other with three low-pass filters respectively, the output terminal of low-pass filter links to each other with the input end of A/D converter, the output terminal of A/D converter links to each other with the CPLD steering logic, the CPLD steering logic respectively with crystal oscillator, DPRAM, EEPROM links to each other, MCU also links to each other with the CPLD steering logic, MCU respectively with the FLASH storer, USB interface, the RS232 interface, show, keyboard links to each other, and wireless transport module links to each other with MCU by the RS232 interface.

Described vibration transducer interface connects vibration transducer, and vibration transducer is pasted or rivet clasp is installed on the vibration object to be measured, is connected to the vibration transducer interface by cable.

Described multiway analog switch enters that three tunnel Signal Pretreatment passages amplify, Filtering Processing, wherein first via passage is connected with low-pass filter successively by 0.5 times of attenuator, second paths is connected to form successively by 8 times of amplifiers and low-pass filter, the Third Road passage is connected with low-pass filter successively by 128 times of amplifiers, and three paths output terminals are connected with multi-channel a/d converter simultaneously.

Described both-end random access memory, electricallyerasable ROM (EEROM), FLASH storer link to each other with MCU, and the triggered time record cell links to each other with triggering controlling of sampling unit in inside, and the outside of triggered time record cell links to each other with EEPROM.

Described trigger control unit links to each other with the triggered time record cell in inside, and the outside of trigger control unit links to each other with A/D converter, both-end random access memory, crystal oscillator, MCU, FLASH storer.

Described USB interface links to each other with PC, and the RS232 interface connects wireless transport module, and acquisition node links to each other with PC by USB interface.

When acquisition node used as the collection child node, the vibration transducer interface was used to connect vibration transducer, and the electric signal of vibration transducer output is introduced circuit.Vibration transducer pastes usually or rivet clasp is installed on the vibration object to be measured, is connected to the vibration transducer interface by cable.Acquisition node can connect a plurality of vibration transducers simultaneously, and selecting wherein by multiway analog switch, one road signal enters subsequent conditioning circuit.Multiway analog switch carries out the passage switching controls by the CPLD steering logic.In addition, same acquisition node can adopt time-multiplexed mode to take turns a plurality of vibration transducers of current control to carry out the blasting vibration data acquisition.

The signal of vibration transducer output is generally analog electrical signal, need through conventional signal Processing after entering acquisition node, after A/D converter is converted to digital signal, the ability buffer memory is to DPRAM or be stored to FLASH, and sends out by USB interface, RS232 interface and wireless transport module.Conventional signal Processing comprises amplification, filtering etc., for convenience of follow-up A/D sample conversion and data processing work, and more clearly illustrates signal waveform, should adopt the amplifier of different gains (being enlargement factor) at different signals.The present invention adopts the CPLD steering logic to control the Signal Pretreatment passage of three tunnel different gains, by comparing with threshold value the gain shelves is set automatically.Wherein first via passage is connected to form by attenuator (as 0.5 times) and first low-pass filter, second paths is connected to form by low power (as 8 times) amplifier and second low-pass filter, and the Third Road passage is connected to form by high power (as 128 times) amplifier and the 3rd low-pass filter.The Signal Pretreatment channel output end of three tunnel different gains is connected with multi-channel a/d converter simultaneously, and A/D converter is to carrying out the A/D sample conversion simultaneously through the signal that this three paths amplifies, Filtering Processing is crossed.Three road signals and setting threshold after the CPLD steering logic is changed A/D compare, thereby select to allow the signal of the interior respective channel transmission of threshold range enter subsequent conditioning circuit, can both clearly illustrate out with the waveform that guarantees any signal.

The CPLD steering logic is not only controlled the channel selecting of A/D converter, also controls the channel selecting of multiway analog switch, also controls DPRAM, EEPROM, FLASH simultaneously and links to each other with MCU, transmits the control signal of MCU.The inner integrated triggered time record cell of CPLD steering logic and distribute control circuit.The triggered time record cell is used for the time that the record acquisition control command is sent, and dividing frequency control circuit is used to the sample frequency that provides different.

MCU is the key control unit of whole acquisition node, and wherein CPLD steering logic, USB interface, RS232 interface, wireless transport module are controlled by MCU.USB interface is used for linking to each other with PC, and the RS232 interface is used to connect wireless transport module, and wireless transport module is used to receive and dispatch control command and image data.On the one hand, when acquisition node when gathering Centroid work, wireless transport module is used to receive the data of a plurality of collection child node collection and will sends to each from information such as the control command of PC, sampling parameters gathers child node.Acquisition node links to each other with PC by USB interface, and the image data that wireless transport module is received transfers to PC, does follow-up explosion data analysis work by PC.On the other hand, when acquisition node when gathering sub-node operation, wireless transport module is used to receive the control command of gathering Centroid and sending, sampling parameter etc., and the data of front-end circuit collection are sent to the collection Centroid.

A kind of control method of carrying out of one of them acquisition node of wireless explosion vibration monitor system that can free networking the steps include:

A, the initialization of acquisition node complete machine.After powering on, acquisition node enters self check, control program, applied for the software copyright registration such as but not limited to the applicant according to the autonomous vibration monitor system software SR-Vib(that works out of control method of the present invention, registration number 2010SR043668) each building block to acquisition node scans, if detecting its USB interface has connected PC, then transfers the Centroid pattern of gathering to, do not connect PC if detect, then transferred the child node pattern of gathering to.

B, request USB interface connect application software, have applied for software copyright registration, registration number 2010SR043668 such as but not limited to the applicant according to the autonomous vibration monitor system software SR-Vib(that works out of control method of the present invention).Acquisition node then forwards step C to if connect the application software success, and acquisition node is as gathering Centroid work; Otherwise forward step D to, acquisition node is as gathering sub-node operation.

C, acquisition node connect the PC application software (such as but not limited to the vibration monitor system software SR-Vib of applicant according to the autonomous establishment of control method of the present invention, (applied for the software copyright registration, registration number 2010SR043668) after the success, acquisition node is as gathering Centroid work.Receive the connection request of gathering child node, send and confirm to insert and routing table, each gathers child node preservation routing table separately, acquisition node receives the connection request of gathering child node, upgrade the routing table of gathering Centroid and each child node, acquisition node sends application command according to routing table to corresponding collection child node, as the sampling parameter setting, begin and finishes collection etc.

Connect less than the PC application software (such as but not limited to the vibration monitor system software SR-Vib of applicant as if acquisition node after D, the initialization according to the autonomous establishment of control method of the present invention, (applied for the software copyright registration, registration number 2010SR043668), then as gathering sub-node operation.Request connects gathers Centroid.If connect the Centroid success, then forward step e to, otherwise forward step F to.

E, acquisition node are worked under the control of gathering Centroid as gathering child node.Set up the routing table that this child node inserts Centroid, allow route to connect, receive and gather the controlled variable that Centroid sends, start monitoring.After monitoring finishes the data that collect are sent to the collection Centroid.After the transmission data finish, turn back to step D and ask to connect the collection Centroid once more.Perhaps gather child node as the route relaying, upload downward message, transmit another and gather the data that child node sends to the collection Centroid according to routing table in E-Packeting.

F, request route connect.The success of request route then goes to step e if the connection Centroid is unsuccessful, otherwise if asks the also unsuccessful step G that then goes to of route.

G, acquisition node start monitoring automatically as gathering child node, work in the strange land offline mode.Acquisition node adopts the work of predefined acquiescence sampling parameter, does not influence other and gathers child node.After the onepull vibration monitoring finished, perhaps when the data of the acquisition node collection that need read strange land offline mode work, the staff found this collection child node, reads the data that it is gathered by USB interface under the offline mode of strange land.

The present invention with compare with existing wired networking and mobile communications network or common wireless transmitter module wireless networking technology, have the following advantages and effect:

The first, flexible: as only to need the collection child node is positioned over the monitoring point, and install vibration transducer and get final product, remove numerous and diverse wiring process from.The second, power consumption is little: under standby mode, gather child node for 1 and can work tens days, be enough to satisfy the measurement demand, compare, mobile communications network or common wireless transmitter module only can be worked a few hours.The 3rd, expense is low: the Zigbee network node module of employing, the price of 433MHz RFID wireless communication module are more much lower than the mobile communication base station and the terminal module price of the cable cost of the wired networking mode of prior art and prior art, gather under the Centroid situation far away all the more so gathering the more or distance of child node quantity.And need not long-term payment network usage charges, exempt from the agreement patent royalty.The 4th, the reliability height: employing integrated level height. the wireless communication module that separating component is few, and the Zigbee agreement adopts multiple measure to improve security.The 5th, independently under the off-line working pattern of strange land gather, separate, stored, when node can't add network, can guarantee that the explosion data acquisition normally carries out.The 6th, acquisition node has versatility and dirigibility, according to the needs of practical application, certain acquisition node can be connected with PC at any time as gathering Centroid and use, or certain acquisition node is connected with sensor as gathering the child node use.Carry out wireless networking by the Zigbee technology, effectively improved monitoring efficient, guaranteed personal security than the Blast Vibration Monitoring of prior art is more convenient.

Compare typical certain domestic vialog (wired networking, sampling rate 1K-50KHz, the triple channel parallel acquisition, error 0.5%, storage space 128M), the present invention has not only saved the huge workload of field wiring, and sampling rate brought up to 200KHz, make the vibration signal of monitoring higher frequency become possibility, and expand memory capacity to it more than 16 times, prolonged monitoring time.

The present invention is not only applicable to the blasting vibration monitoring, also can be applicable to fields such as oil field, electric power, mine, logistics.Only need to select right sensors for use and lay the collection child node, just can carry out the real-time radio monitoring engineering site according to on-the-spot needs.

Description of drawings

Fig. 1 is the networking schematic block diagram according to a kind of wireless explosion vibration monitor system that can free networking of one of them embodiment of the present invention.Wherein: 102-gathers Centroid; 104A, 104B, 104C, 104D, 104E, 104F are for gathering child node; The 106-blow-up point.

Fig. 2 is the hardware configuration schematic block diagram according to the collection Centroid of a kind of wireless explosion vibration monitor system that can free networking of one of them embodiment of the present invention.Wherein: 202-vibration transducer interface; 204-multiway analog switch (MAX4518ESD); 208A-amplifier (PGA204); 208B-amplifier (OPA4560U); 206-attenuator (OPA4650); 210A ~ C-low-pass filter (MAX291); 212-A/D converter (ADS8365); 214-CPLD steering logic (EPM1270); 224-MCU(CY68013A); 226-FLASH storer (K9K4G); 228-USB interface (CY7C68013); 230-RS232 interface (ST3232ECTR); 232-wireless transport module (XBEE); 236-shows (LED color lamp); The 234-keyboard; 220-DPRAM(IDT7027L); 238-EEPROM(24LC64); 222-crystal oscillator (active 20MHz).

Fig. 3 is the detail flowchart of the method carried out of the Fig. 1 according to one of them embodiment of the present invention, one of them acquisition node of Blast Vibration Monitoring shown in Figure 2 system.

Fig. 4 is the communication data frame format synoptic diagram according to one of them acquisition node transmission of one of them embodiment of the present invention.

Embodiment

Below in conjunction with accompanying drawing the present invention is described in further detail:

Below will provide detailed explanation to embodiments of the invention.Though the present invention will set forth in conjunction with the embodiments, should understand this is not to mean the present invention is defined in these embodiment.On the contrary, defined option in the various scopes of the present invention, but modification item and be equal to item.With specific embodiment technical scheme of the present invention is described in detail in conjunction with the accompanying drawings, so that characteristic of the present invention and advantage are more obvious.

Embodiment described herein will be described in conjunction with the executable instruction of common conceptive computing machine.The executable instruction of computing machine refers to the media that can be used by the computing machine that one or more computing machine or other similar devices are carried out, as program module.As a rule, program module comprises and carries out particular task or the routine that particular abstract is operated, object, assembly, data structure or the like.The function of program module can make up according to the demand of different embodiment or split.

By instantiation, but unrestricted, computing machine can with media can comprise computer storage media and telecommunication media.Computer storage media comprises volatibility and non-volatile, removable and non-removable, may be implemented in the media of any method or technology, is used for canned data, as computer-readable instruction, data structure, program module and other data.Computer storage media comprises, but be not limited only to, random-access memory (ram), ROM (read-only memory) (ROM), Electrically Erasable Read Only Memory (EEPROM), flash memories and other memory technology, read-only compact disk (CD-ROM), digital multi-purpose CD (DVD) and other optical storage techniques, magnetic tape cassette, magnetic video disc storer and other magnetic storage, and other can be used to the media of canned data.

Telecommunication media can be computer readable instructions, data structure, program module and other data in the modulated data signal, and modulated data signal comprises any information transmission media, as carrier wave or other transmission mechanism.Term " modulated data signal " expression is in order to be carried in information on certain signal, and certain or multifrequency nature of this signal have been carried out being provided with or changing.For example, but be not limited only to, telecommunication media can comprise wired media and wireless medium.Wired media such as cable network, straight line connect.Wireless medium such as sound wave, radio frequency (RF), infrared and other.Above-mentioned combination in any equally also should be included in the scope of computer readable medium.The?invention?may?be?described?in?the?general?context?of?computer-executable?instructions,?such?as?program?modules,?being?executed?by?a?computer.Generally,?program?modules?include?routines,?programs,?objects,?components,?data?structures,?etc.?that?perform?particular?tasks?or?implement?particular?abstract?data?types.

In addition, in following detailed description of the present invention,, illustrated a large amount of details in order to provide one at understanding completely of the present invention.Yet it will be understood by those skilled in the art that does not have these details, and the present invention can implement equally.In some other examples, scheme, flow process, element and the circuit known for everybody are not described in detail, so that highlight the present invention's purport.

See also Fig. 1, wherein show according to an embodiment of the invention the networking schematic block diagram of wireless explosion vibration monitor system 100 that can free networking.As shown in Figure 1, this wireless explosion vibration monitor system comprises the first collection child node 104A that lays around the blow-up point 106, second gathers child node 104B, the 3rd gathers child node 104C, the 4th gathers child node 104D, the 5th gathers child node 104E, the 6th gathers child node 104F and from blow-up point 106 collection Centroid 102 far away, first gathers child node 104A, second gathers child node 104B, the 3rd gathers child node 104C, the 4th gathers child node 104D, the 5th gathers child node 104E, the 6th gathers child node 104F passes through radio communication network interconnection with collection Centroid 102, wherein first gather child node 104A, second gathers child node 104B, the 3rd gathers child node 104C, the 4th gathers child node 104D, the 5th gathers child node 104E, the 6th gathers child node 104F and gathers Centroid 102 direct UNICOMs, and the 4th collection child node 104D and the 5th collection child node 104E gather child node 104A and second by first respectively and gather child node 104B relaying and collection Centroid 102 UNICOMs.Below will describe function, working method and the annexation of diagram each device, unit and module in detail.

According to one of them embodiment of the present invention, wireless explosion vibration monitor system 100 that can free networking is based on that the Zigbee wireless communication technology sets up.Gather Centroid 102 and first and gather child node 104A, second and gather child node 104B, the 3rd and gather child node 104C, the 4th and gather child node 104D, the 5th and gather child node 104E, the 6th and gather child node 104F and all contain a standard Zigbee wireless communication module separately, for example can adopt but be not limited only to the Zigbee module Xbee that company of U.S. Digi company produces.The collection Centroid 102 and the first collection child node 104A, the second collection child node 104B, the 3rd collection child node 104C, the 4th collection child node 104D, the 5th collection child node 104E, the 6th collection child node 104F are one of them node of Zigbee network, carry out interactive communication with standard Zigbee protocol mode in network range.

One of ordinary skill in the art will appreciate that the standard traffic distance between two adjacent Zigbee network nodes is 10～100m, increase the radio-frequency emission power of node after communication distance can increase to 1 ~ 3km.In addition, the Zigbee network node itself has automatic dynamic networking and automatic routing function, whole network can be finished the merch net automatically, each Zigbee network node all automatically other node of transfer pass the data information of coming, transmit farther distance in the mode of relaying relay.As can be known, when certain bar Zigbee network interrupts, can search other node trunking traffics automatically, have self-organization and self-recovering function.

As shown in Figure 1, because what the collection Centroid 102 and the first collection child node 104A, the second collection child node 104B, the 3rd collection child node 104C, the 4th gathered child node 104D, the 5th collection child node 104E, the 6th collection child node 104F employing is identical Zigbee wireless communication module, the efficient communication scope between any two nodes is identical.For example gathering Centroid 102 has an efficient communication scope 116, the first collection child node 104A, the second collection child node 104B, the 3rd to gather child node 104C and drop in its efficient communication scope 116, then can directly communicate with.And the 4th collection child node 104D, the 5th gathers child node 104E, the 6th collection child node 104F not in the efficient communication scope 116 of gathering Centroid 102, then can not directly communicate with collection Centroid 102.Even so, the 4th collection child node 104D is in the efficient communication scope of the second collection child node 104B, and the 5th collection child node 104E is in the efficient communication scope of the first collection child node 104A.When the 4th collection child node 104D and the 5th gathers child node 104E search less than collection Centroid 102, they can search the second collection child node 104B and the first collection child node 104A of vicinity separately automatically, communicate by letter with collection Centroid 102 by the second route relaying of gathering the child node 104B and the first collection child node 104A.The rest may be inferred, any one is gathered child node (gathering child node 104F as the 6th) and passes through progressively relaying of adjacent with it a plurality of collection child nodes, all can communicate with gathering Centroid 102 indirectly, gather route, automatic dynamic networking automatically between the child node.

Get back to Fig. 1, the 6th collection child node 104F is far away from gathering Centroid 102, can gather child node 104E and first twice relaying of collection child node 104A and collection Centroid 102 by the 5th in theory and communicate.In fact, gather between child node 104F and the 6th collection child node 104E and have the object of house and trees and so on to block when the 5th, or when situation such as Electromagnetic Interference was arranged, the efficient communication scope of Zigbee network signal was just little than theoretical value.In this case, the 6th gathers child node 104F just can not communicate with collection Centroid 102, that is to say, the 6th gathers child node 104F can not carry out data collection task under the control of gathering Centroid 102, the data in real time of gathering can not be transferred to and gather Centroid 102.

In the present embodiment, gather child node 104F the 6th and directly or indirectly all do not connect under the situation of gathering Centroid 102, the 6th gathers child node 104F will not gathered Centroid 102 controls, and automatically switch to strange land off-line working pattern.During 100 initialization of wireless explosion vibration monitor system, the 6th clock setting of gathering child node 104F and collection Centroid 102 is synchronous.Under the off-line working pattern of strange land, the 6th gathers child node 104F will sample with predefined sampling parameter, and the data storage of collection has independent collection, separate, stored function in the 6th this machine of collection child node 104F.After the data collection task of onepull vibration monitoring is finished, can find the 6th of off-line working to gather child node 104F, to be stored in the 6th data of gathering in this machine of child node 104F by wired or wireless mode and read, comprehensively other data of gathering the child node collection are analyzed.Because it is synchronous gathering the clock of child node 104F and collection Centroid 102, just can find the 6th collection child node 104F to collect data constantly in the corresponding moment according to the explosion of gathering Centroid 102 records.The detailed strange land off-line working methods of wireless explosion vibration monitor system 100 specify in the description of Fig. 3 hereinafter.

According to other embodiments of the invention, wireless explosion vibration monitor system 100 that can free networking can be set up and be not limited only to the Zigbee technology based on other wireless communication technology, as WIFI, RFID, UWB etc.For example, according to another embodiment of the invention, gathering Centroid 102 and first gathers child node 104A, second and gathers child node 104B, the 3rd and gather child node 104C, the 4th and gather child node 104D, the 5th and gather child node 104E, the 6th and gather child node 104F and all adopt but be not limited only to the 433MHz RFID wireless communication module that Shanghai Zhaofu Communication Technology Co., Ltd. produces.The communication protocol that collection Centroid 102 and the first collection child node 104A, second gather between child node 104B, the 3rd collection child node 104C, the 4th collection child node 104D, the 5th collection child node 104E, the 6th collection child node 104F is user-defined.In the present embodiment, the communication protocol of applicant's independent development and the foregoing description Zigbee technology similar functions, as shown in Figure 4, detailed method of work specifies in the description of Fig. 3 hereinafter under the communication data frame format.Networking feature of the present invention is respectively to gather child node also to have the route relay function except that gathering transfer function, but and strange land off-line working.

According to one of them embodiment of the present invention, the kernal hardware circuit that the first collection child node 104A, the second collection child node 104B, the 3rd collection child node 104C, the 4th gather child node 104D, the 5th collection child node 104E, the 6th collection child node 104F and collection Centroid 102 is identical (Fig. 2 will describe the kernal hardware circuit of one of them embodiment in detail).When the on-the-spot establishment system of explosion (shown in Figure 1), first gathers child node 104A, second gathers child node 104B, the 3rd and gathers child node 104C, the 4th and gather child node 104D, the 5th and gather child node 104E, the 6th and gather child node 104F and vibration transducer (the serial speed pickup of PS-4.5 hereinafter described for example, not shown) link to each other, gather Centroid 102 and link to each other with the PC input equipment.As required, any one first collection child node 104A, the second collection child node 104B, the 3rd collection child node 104C, the 4th collection child node 104D, the 5th collection child node 104E, the 6th collection child node 104F can be gathered the Centroid use instead, also collection Centroid 102 can be gathered the child node use instead.The software SR-Vib(that the first collection child node 104A, the second collection child node 104B, the 3rd collection child node 104C, the 4th gather child node 104D, the 5th collection child node 104E, the 6th collection child node 104F and collection Centroid 102 has applied for the software copyright registration, registration number 2010SR043668) also be general, its execution work method specifies in the description of Fig. 3 hereinafter.

Compare with existing wired networking and mobile communications network or common wireless transmitter module wireless networking technology, the present invention has following advantage:

First, flexible: as only to need to gather child node 104A, second and gather child node 104B, the 3rd and gather child node 104C, the 4th and gather child node 104D, the 5th and gather child node 104E, the 6th and gather child node 104F and be positioned over the monitoring point with first, and install vibration transducer and get final product, remove numerous and diverse wiring process from.The second, power consumption is little: under standby mode, gather child node for 1 and can work tens days, be enough to satisfy the measurement demand, compare, mobile communications network or common wireless transmitter module only can be worked a few hours.The 3rd, expense is low: the price of the 433MHz RFID wireless communication module that the Zigbee network node module that first embodiment adopts, second embodiment adopt is more much lower than the mobile communication base station and the terminal module price of the cable cost of the wired networking mode of prior art and prior art, gathers under the Centroid situation far away all the more so gathering the more or distance of child node quantity.And ZigBee use 2.4GHz ISM band, need not long-term payment network usage charges, exempt from the agreement patent royalty.The 4th, the reliability height: two embodiment all adopt integrated level height, wireless communication module that separating component is few, and the Zigbee technology of first embodiment adopts multiple measure (as to provide data integrity inspection and authentication functions, use Access Control inventory (ACL) to prevent from illegally to obtain data, adopt general AES-128 cryptographic algorithm etc.) the raising security.The 5th, independently under the off-line working pattern of strange land gather, separate, stored, when node can't add network, can guarantee that the explosion data acquisition normally carries out.

The present invention is not only applicable to the blasting vibration monitoring, also can be applicable to fields such as oil field, electric power, mine, logistics.Only need to select right sensors for use and lay the collection child node, just can carry out the real-time radio monitoring engineering site according to on-the-spot needs.

See also Fig. 2, show that wherein the collection Centroid 102 and first in can the wireless explosion vibration monitor system 100 of free networking shown in Figure 1 according to an embodiment of the invention gathers child node 104A, second and gather child node 104B, the 3rd and gather child node 104C, the 4th and gather child node 104D, the 5th and gather the hardware configuration schematic block diagram that child node 104E, the 6th gathers child node 104F.In the present embodiment, gather Centroid 102 and hardware configuration basic identical, hereinafter be referred to as acquisition node 200.

As shown in Figure 2, a kind of wireless explosion vibration monitor system that can free networking, it is by vibration transducer interface 202, multiway analog switch 204, the first amplifier 208A, the second amplifier 208B, attenuator 206, the first low-pass filter 210A, the second low-pass filter 210B, the 3rd low-pass filter 210C, A/D converter 212, CPLD steering logic 214, MCU224, FLASH storer 226, USB interface 228, RS232 interface 230, wireless transport module 232, show 236, keyboard 234, crystal oscillator 222, both-end random access memory (DPRAM) 220, electricallyerasable ROM (EEROM) (EEPROM) 238 is formed, wherein CPLD steering logic 214 further comprises triggering controlling of sampling unit 217, triggered time record cell 216 and dividing frequency control circuit 218, it is characterized in that: vibration transducer interface 202 links to each other with a plurality of input ends of multiway analog switch 204 respectively, the output terminal of multiway analog switch 204 correspondences and attenuator 206 side by side, the first amplifier 208A, the second amplifier 208B links to each other, attenuator 206, the first amplifier 208A, the second amplifier 208B respectively with the first low-pass filter 210A, the second low-pass filter 210B, the 3rd low-pass filter 210C links to each other, the first low-pass filter 210A, the second low-pass filter 210B, the output terminal of the 3rd low-pass filter 210C links to each other with the input end of A/D converter 212, the output terminal of A/D converter 212 links to each other with CPLD steering logic 214, CPLD steering logic 214 respectively with crystal oscillator 222, DPRAM 220, EEPROM 238 links to each other, MCU224 also links to each other with CPLD steering logic 214, MCU224 respectively with FLASH storer 226, USB interface 228, RS232 interface 230, show 236, keyboard 234 links to each other, and wireless transport module 232 links to each other with MCU224 by RS232 interface 230.

Described vibration transducer interface 202 connects vibration transducer, and vibration transducer is pasted or rivet clasp is installed on the vibration object to be measured, is connected to vibration transducer interface 202 by cable.

Described multiway analog switch 204 enters that three tunnel Signal Pretreatment passages amplify, Filtering Processing, wherein first via passage is connected with the first low-pass filter 210A successively by 0.5 times of attenuator 206, second paths is connected to form successively by the 8 times of first amplifier 208A and the second low-pass filter 210B, the Third Road passage is connected with the 3rd low-pass filter 210C successively by 128 times of second amplifier 208B, and three paths output terminals are connected with multi-channel a/d converter 212 simultaneously.

Described both-end random access memory 220, electricallyerasable ROM (EEROM) 238, FLASH storer 226 link to each other with MCU224, triggered time record cell 216 links to each other with triggering controlling of sampling unit 217 in inside, and the outside of triggered time record cell 216 links to each other with EEPROM238.

Described trigger control unit 217 links to each other with triggered time record cell 216 in inside, and the outside of trigger control unit 217 links to each other with A/D converter 212, both-end random access memory 220, crystal oscillator 222, MCU224, FLASH storer 226.

Described USB interface 220 links to each other with PC, and RS232 interface 224 connects wireless transport module 226, and acquisition node 200 links to each other with PC by USB interface 220.

Different embodiment according to the subject invention can adopt different manufacturers device that produce, different model.For example, according to one of them embodiment of invention, multiway analog switch 204 is MAX4518ESD, amplifier 208A is PGA204, amplifier 208B is OPA4560U, the attenuator circuit that attenuator 206 constitutes for operational amplifier OPA4560, low-pass filter 210A ~ C is MAX291, A/D converter 212 is the A/D chip ADS8365 that Analog Device company produces, CPLD steering logic 214 is CPLD (CPLD) EPM1270, MCU224 is CY68013A, FLASH storer 226 is K9K4G, USB interface 228 is CY7C68013, RS232 interface 230 is ST3232ECTR, wireless transport module 232 is XBEE, show that 236 is the LED color lamp, keyboard 234, crystal oscillator 222 is higher than the active crystal oscillator of 20MHz of 0.1ppm for precision, DPRAM 220 is the two-port RAM IDT7027L of 32KB, EEPROM 238 is 24LC64.

When acquisition node 200 used as the collection child node, vibration transducer interface 202 was used to connect vibration transducer (accessory, not shown), and the electric signal of vibration transducer output is introduced circuit.Vibration transducer pastes usually or rivet clasp is installed on the vibration object to be measured, is connected to vibration transducer interface 202 by cable.In the present embodiment, vibration transducer is PS-4.5 series acceleration/speed pickup, but non-ly only limits to above-mentioned model vibration transducer.Certainly, one of ordinary skill in the art will appreciate that acquisition node 200 also can connect the vibration transducer of other types, even the non-vibration sensor, as long as the bandwidth of sensor output signal and amplitude are in the process range of subsequent conditioning circuit.Acquisition node 200 can connect a plurality of vibration transducers simultaneously, and selecting wherein by multiway analog switch 204, one road signal enters subsequent conditioning circuit.Multiway analog switch 204 carries out the passage switching controls by CPLD steering logic 214.In addition, same acquisition node 200 can adopt time-multiplexed mode to take turns a plurality of vibration transducers of current control to carry out the blasting vibration data acquisition.

In the present embodiment, the signal of vibration transducer output is an analog electrical signal, need through conventional signal Processing after entering acquisition node 200, after A/D converter 212 is converted to digital signal, the ability buffer memory is to DPRAM 220 or be stored to FLASH 226, and sends out by USB interface 228, RS232 interface 230 and wireless transport module 232.One of ordinary skill in the art will appreciate that conventional signal Processing comprises amplification, filtering etc.The vibration transducer sensing range that has is bigger, and the electric signal amplitude frequency range of its output is also bigger, as output signal frequency scope 0 ~ 20kHz, and output signal amplitude range 1mV ~ 10V.For convenience of follow-up A/D sample conversion and data processing work, and more clearly illustrate signal waveform, should adopt the amplifier of different gains (being enlargement factor) at different signals.Prior art is provided with many grades of gain shelves at the signal of different amplitude frequency ranges usually, manually selects suitable gain shelves by operating personnel when carrying out the waveform demonstration.

And in the present embodiment, adopt the Signal Pretreatment passage of three different gains of CPLD steering logic 214 controls, by comparing the gain shelves are set automatically with threshold value.As shown in Figure 2, three tunnel Signal Pretreatment passages amplify signal, Filtering Processing through entering simultaneously behind the multiway analog switch 204, wherein first via passage is connected to form successively by 0.5 times of attenuator 206 and low-pass filter 210A, second paths is connected to form successively by 8 times of amplifier 208A and low-pass filter 210B, and the Third Road passage is connected to form successively by 128 times of amplifier 208B and low-pass filter 210C.Three paths output terminals are connected with multi-channel a/d converter 212 simultaneously, and 212 pairs of signals of crossing through this three paths amplification, Filtering Processing of A/D converter carry out the A/D sample conversion simultaneously.Three road signals and setting threshold after CPLD steering logic 214 is changed A/D compare, thereby select to allow the signal of the interior respective channel transmission of threshold range enter subsequent conditioning circuit, can both clearly illustrate out with the waveform that guarantees any signal.

CPLD steering logic 214 is not only controlled the channel selecting of A/D converter 212, also control the channel selecting of multiway analog switch 204, also control DPRAM 220, EEPROM 238, FLASH 226 simultaneously and link to each other, transmit the control signal of MCU 224 with MCU 224.CPLD steering logic 214 inside are integrated triggering controlling of sampling unit 217, triggered time record cell 216 and dividing frequency control circuit 218.Triggered time record cell 216 inside with trigger controlling of sampling unit 217 and link to each other, the outside of triggered time record cell 216 links to each other with EEPROM 238, is used for the temporal information that the record acquisition control command sends and is stored in EEPROM 238.If continuous trigger pattern, the then zero-time of record triggering; If threshold triggers pattern, then each time of triggering of record.Trigger control unit 217 links to each other with triggered time record cell 216 in inside, the outside of trigger control unit 217 links to each other with A/D converter 212, DPRAM 220, crystal oscillator 222, MCU224, FLASH storer 226, is used to provide trigger message to triggered time record cell 216.Under the beat of crystal oscillator 222, trigger control unit 217 is responsible for the collection of 212 pairs of external signals of A/D converter, and the data that collect are stored among the DPRAM 220 successively by passage, recording after sampling number reaches, parallel notice MCU 224 takes out data, if host node, then data are exported to USB port by PC control software (as the vibration monitor system software SR-Vib of applicant's independent development, (applied for the software copyright registration, registration number 2010SR043668) reads, if child node, then control MCU224 with data storage in FLASH storer 226.Dividing frequency control circuit 218 is used to the sample frequency that provides different.For example, the reference frequency frequency division that crystal oscillator 222 can be provided is 1K, 2K, three kinds of sample frequency of 4K.Whole sampling, the sequential of storing, uploading are finished by CPLD steering logic 214.

MCU 224 is the key control unit of whole acquisition node 200, and wherein CPLD steering logic 214, USB interface 220, RS232 interface 224, wireless transport module 226, keyboard 228, demonstration 230 are by MCU 224 controls.USB interface 220 is used for linking to each other with PC, and RS232 interface 224 is used to connect wireless transport module 226, and wireless transport module 226 is used to receive and dispatch control command and image data.As mentioned before, acquisition node 200 both can connect sensor as gathering sub-node operation, can connect PC again as gathering Centroid work.On the one hand, when acquisition node 200 when gathering Centroids work, wireless transport module 226 is used to receive the data of a plurality of collection child node collection and will sends to each from information such as the control command of keyboard 228 inputs, sampling parameters gathers child node.Acquisition node 200 links to each other with PC by USB interface 220, and the image data that wireless transport module 226 is received transfers to PC, does follow-up explosion data analysis work by PC.On the other hand, when acquisition node 200 when gathering sub-node operation, wireless transport module 226 is used to receive the control command of gathering Centroid and sending, sampling parameter etc., and the data of front-end circuit collection are sent to the collection Centroid.The data format definition of wireless transport module 226 is illustrated in fig. 4 shown below.

The acquisition node 200 of present embodiment has versatility and dirigibility.The user is at the identical acquisition node 200 of the on-the-spot placed around of explosion, needs according to practical application, at any time certain acquisition node 200 can be connected with PC as gathering Centroid and use, or certain acquisition node 200 is connected with sensor as gathering the child node use.Carry out wireless networking by the Zigbee technology, effectively improved monitoring efficient, guaranteed personal security than the Blast Vibration Monitoring of prior art is more convenient.

See also Fig. 3, wherein show the detail flowchart 300 of the method that Fig. 1 according to an embodiment of the invention, one of them acquisition node 200 of Blast Vibration Monitoring shown in Figure 2 system are carried out.Process flow diagram 300 can program form realize, this program can be with the programming language of one or more forms, as collect language or interpreted language write, and this program can be used as a program independently, also can be used as the form that module, assembly, subroutine and other can be carried out by computing machine.In the present embodiment, process flow diagram 300 is realized with the form of Single Chip Microcomputer (SCM) program, is carried out by MCU 224 shown in Figure 2, and a kind of control method of carrying out of one of them acquisition node of wireless explosion vibration monitor system that can free networking the steps include:

In A, the step 302, acquisition node 200 complete machine initialization.The acquisition node 200 of present embodiment both can be used as gathers Centroid work, can be used as the collection sub-node operation again, and its kernal hardware circuit is general, realizes that the software program of this method 300 is also identical.After powering on, acquisition node 200 enters self check, and program scans each building block of acquisition node 200, connected PC if detect its USB interface 228, then transfer to and gather the Centroid pattern, do not connected PC, then transfer the child node pattern of gathering to if detect.

In B, the step 304, the request USB interface connects application software (as the vibration monitor system software SR-Vib of applicant's independent development, having applied for the software copyright registration, registration number 2010SR043668).As mentioned before, acquisition node 200 is if will then need to connect by USB interface 228 application software of PC as gathering Centroid work.Acquisition node 200 is if connect the application software success, and then a kind of process flow diagram 300 of the control method carried out of one of them acquisition node of wireless explosion vibration monitor system that can free networking forwards step 306 to and receives the child node connection request; Otherwise a kind of process flow diagram 300 of the control method carried out of one of them acquisition node of wireless explosion vibration monitor system that can free networking forwards step 308 to and sends and confirm to insert and routing table.Step 306 reception child node connection request, step 308 transmission affirmation access and routing table, step 310 are preserved each child node routing table, step 312 recipient node connection request, step 314 renewal Centroid, each child node routing table, step 316 according in the routing table transmission application command, acquisition node 200 conduct collection Centroid work; Step 318 request connects that Centroid, step 320 request route connect, step 322 starts automatically that monitoring, step 324USB read, step 326 sets up that this node inserts that Centroid routing table, step 328 allow that route connects, step 330 receives parameter and starts that monitoring, step 332 send data, step 334 is uploaded in the downward message according to routing table in E-Packeting, and acquisition node 200 is as gathering sub-node operation.

In C, the step 306, after acquisition node 200 connected the success of PC application software, acquisition node 200 received the connection request of gathering child node as gathering Centroid.If receives successfully, then a kind of process flow diagram 300 of the control method carried out of one of them acquisition node of wireless explosion vibration monitor system that can free networking forwards step 308 to and sends affirmation access and routing table; Otherwise continue to wait for connection request success until receiving child node.

In D, the step 308, acquisition node 200 sends affirmation access and routing table as gathering Centroid to the collection child node of sending connection request.Step 310 is preserved in each child node routing table, and each gathers child node preservation routing table separately.The process flow diagram 300 of preservation a kind of control method of carrying out of one of them acquisition node of wireless explosion vibration monitor system that can free networking after finishing forwards step 312 recipient node connection request respectively to and step 316 sends application command, the two executed in parallel according to routing table.

In E, the step 312, acquisition node 200 receives the connection request of gathering child node.Execution in step 314 is upgraded Centroid, each child node routing table afterwards.Step 314 is upgraded in Centroid, each child node routing table, upgrades the routing table of gathering Centroid 200 and each child node.Acquisition node 200 just can be used as the image data that collection Centroid reception collection child node sends after upgrading routing table.

In F, the step 316, acquisition node 200 sends application command according to routing table to corresponding collection child node, as the sampling parameter setting, begin and finishes collection etc.

In G, the step 318, connect after acquisition node 200 initialization, then connect the collection Centroid as gathering the child node request less than the PC application software.If connect the Centroid success, then a kind of process flow diagram 300 of the control method carried out of one of them acquisition node of wireless explosion vibration monitor system that can free networking forwards step 326 to and sets up this node and insert the Centroid routing table; Otherwise a kind of process flow diagram 300 of the control method carried out of one of them acquisition node of wireless explosion vibration monitor system that can free networking forwards step 320 request route to and connects.Step 326 is set up this node and is inserted in Centroid routing table, the connection of step 328 permission route, step 330 reception parameter startup monitoring, step 332 transmission data, the step 334, and acquisition node 200 is worked under the control of collection Centroid as the collection child node; During the automatic monitoring of step 322 startup, step 324USB read, acquisition node 200 was as gathering the automatic strange land of child nodes off-line working.

In H, the step 326, after connecting the success of collection Centroid, set up the routing table that this child node inserts Centroid, a kind of process flow diagram 300 of the control method carried out of one of them acquisition node of wireless explosion vibration monitor system that can free networking goes to step 328 and allows route to connect.Step 328 allows to allow route to connect during route connects, and a kind of process flow diagram 300 of the control method carried out of one of them acquisition node of wireless explosion vibration monitor system that can free networking goes to step 330 and receives parameter and start monitoring.Step 330 receives parameter and starts in the monitoring, receive and gather the controlled variable that Centroid sends, start monitoring, a kind of process flow diagram 300 of the control method carried out of one of them acquisition node of wireless explosion vibration monitor system that can free networking goes to step 332 and sends data.Step 332 sends in the data, gathers child node the data that collect are sent to the collection Centroid.After sending data and finishing, a kind of process flow diagram 300 of the control method carried out of one of them acquisition node of wireless explosion vibration monitor system that can free networking is got back to step 318 request and is connected Centroid, and request connects and gathers Centroid once more.

In J, the step 334, gather child node, upload downward message, transmit another and gather the data that child node sends to the collection Centroid according to routing table in E-Packeting as the route relaying.The data frame format that acquisition node sends sees also Fig. 4.

In N, the step 320, acquisition node 200 request routes connect.If the route successful connection, then a kind of process flow diagram 300 of the control method carried out of one of them acquisition node of wireless explosion vibration monitor system that can free networking goes to step 326 and sets up this node and insert the Centroid routing table; Otherwise go to step 322 and start monitoring automatically.Step 322 starts in the monitoring automatically, starts monitoring automatically, and acquisition node 200 works in the strange land offline mode, adopts the work of predefined acquiescence sampling parameter, does not influence other and gathers child node.

In K, the step 324, after the onepull vibration monitoring finishes, perhaps when data that the acquisition node 200 that need read strange land offline mode work is gathered, the staff finds this collection child node, reads the data that it is gathered by USB interface under the offline mode of strange land.Because the collection child node is synchronous with collection Centroid clock, has write down the sampling triggering constantly and gather Centroid, then is easy to the data that find the collection child node to gather constantly in this triggering.

In the present embodiment, the process flow diagram 300 of the method that one of them acquisition node 200 of Blast Vibration Monitoring system is carried out only is crucial innovative step signal of the present invention, one of ordinary skill in the art will appreciate that, the exploitation of concrete application software must and Network Transmission, radio-frequency technique and bottom software and hardware control technology combine, follow the functional performance of common communication protocol such as Zigbee and hardware component.

See also Fig. 4, wherein show the communication data frame format synoptic diagram of one of them acquisition node transmission of one of them embodiment of the present invention.The those of ordinary skill of this area is appreciated that the data in graph form frame format only is that the self-defining a kind of communication data frame format of applicant is given an example, and the present invention is not limited to this.

Though explanation before and accompanying drawing have been described preferred embodiment of the present invention, be to be understood that under the prerequisite of spirit that does not break away from the principle of the invention that is defined and protection domain, can have and variously augment, revise and replace.It should be appreciated by those skilled in the art that the present invention can change aspect form, structure, layout, ratio, material, element, assembly and other to some extent according to concrete environment and job requirement in actual applications under the prerequisite that does not deviate from the invention criterion.Therefore, embodiment disclosed here only is illustrative rather than definitive thereof, and protection scope of the present invention is defined by technical scheme in claims and legal equivalents thereof, and the description before being not limited thereto.

Claims (7)

1. One kind can free networking the wireless explosion vibration monitor system, it is by vibration transducer interface (202), multiway analog switch (204), first amplifier (208A), attenuator (206), first low-pass filter (210A), A/D converter (212), CPLD steering logic (214), MCU(224), FLASH storer (226), USB interface (228), wireless transport module (232), both-end random access memory (220), electricallyerasable ROM (EEROM) (238) is formed, it is characterized in that: CPLD steering logic (214) comprises triggering controlling of sampling unit (217), triggered time record cell (216) and dividing frequency control circuit (218), vibration transducer interface (202) links to each other with a plurality of input ends of multiway analog switch (204) respectively, output terminal that multiway analog switch (204) is corresponding and attenuator (206) side by side, first amplifier (208A), second amplifier (208B) links to each other, attenuator (206), first amplifier (208A), second amplifier (208B) respectively with first low-pass filter (210A), second low-pass filter (210B), the 3rd low-pass filter (210C) links to each other, first low-pass filter (210A), second low-pass filter (210B), the output terminal of the 3rd low-pass filter (210C) links to each other with the input end of A/D converter (212), the output terminal of A/D converter (212) links to each other with CPLD steering logic (214), CPLD steering logic (214) respectively with crystal oscillator (222), DPRAM (220), EEPROM (238) links to each other, MCU224 links to each other with CPLD steering logic (214), MCU(224) respectively with FLASH storer (226), USB interface (228), RS232 interface (230), show (236), keyboard (234) links to each other, and wireless transport module (232) is by RS232 interface (230) and MCU(224) link to each other.
2. 2. a kind of wireless explosion vibration monitor system that can free networking according to claim 1, it is characterized in that: described vibration transducer interface (202) connects vibration transducer, vibration transducer is pasted or rivet clasp is installed on the vibration object to be measured, is connected to vibration transducer interface (202) by cable.
3. 3. a kind of wireless explosion vibration monitor system that can free networking according to claim 1, it is characterized in that: described multiway analog switch (204) enters three tunnel Signal Pretreatment passages and amplifies, Filtering Processing, wherein first via passage is connected with low-pass filter (210A) successively by 0.5 times of attenuator (206), second paths is connected to form successively by 8 times of first amplifier (208A) and second low-pass filter (210B), the Third Road passage is connected with the 3rd low-pass filter (210C) successively by 128 times of second amplifier (208B), and three paths output terminals are connected with multi-channel a/d converter (212) simultaneously.
4. 4. a kind of wireless explosion vibration monitor system that can free networking according to claim 1, it is characterized in that: described both-end random access memory (220), electricallyerasable ROM (EEROM) (238), FLASH storer (226) and MCU(224) link to each other, triggered time record cell (216) links to each other with triggering controlling of sampling unit (217) inner, and the outside of triggered time record cell (216) links to each other with EEPROM (238).
5. 5. according to claim 1 or 4 described a kind of wireless explosion vibration monitor systems that can free networking, it is characterized in that: described trigger control unit (217) links to each other the outside of trigger control unit (217) and A/D converter (212), both-end random access memory (220), crystal oscillator (222), MCU(224 inner with triggered time record cell (216)), FLASH storer (226) links to each other.
6. 6. a kind of wireless explosion vibration monitor system that can free networking according to claim 1, it is characterized in that: described USB interface (220) links to each other with PC, RS232 interface (224) connects wireless transport module (226), and acquisition node (200) links to each other with PC by USB interface (220).
7. 7. the control method of the described a kind of wireless explosion vibration monitor system that can free networking of claim 1 the steps include:

   A, the initialization of acquisition node complete machine: after powering on, acquisition node enters self check, control program, each building block to acquisition node scans, and detects its USB interface and has connected PC, transfers the Centroid pattern of gathering to, detecting and connected PC, is to gather the child node pattern;

   B, request USB interface connect application software, and acquisition node connects the application software success, forwards step (C) to, and acquisition node is for gathering Centroid work; Forward step (D) to, acquisition node is for gathering sub-node operation;

   After C, acquisition node connect the success of PC application software, acquisition node is as gathering Centroid work, receive the connection request of gathering child node, send and confirm to insert and routing table, each gathers child node preservation routing table separately, and acquisition node receives the connection request of gathering child node, upgrades the routing table of gathering Centroid and each child node, acquisition node sends application command according to routing table to corresponding collection child node, the sampling parameter setting, begins and finishes collection;

   If acquisition node connects less than the PC application software, for gathering sub-node operation, request connects gathers Centroid, connects the Centroid success, forwards step (E) to after D, the initialization;

   E, acquisition node are worked under the control of gathering Centroid as gathering child node, set up the routing table that this child node inserts Centroid, the permission route connects, receive and gather the controlled variable that Centroid sends, start monitoring, after monitoring finishes the data that collect are sent to the collection Centroid, after the transmission data finish, turn back to step (D) and ask to connect the collection Centroid once more, gather child node as the route relaying, upload downward message according to routing table in E-Packeting, transmit another and gather the data that child node sends to the collection Centroid;

   F, request route connect, and connect the success of the unsuccessful request of Centroid route, go to step (E), the unsuccessful step (G) that goes in request road;

   G, acquisition node start monitoring automatically as gathering child node, work in the strange land offline mode, acquisition node adopts the work of predefined acquiescence sampling parameter, do not influence other and gather child node, after the onepull vibration monitoring finishes, read the data of the acquisition node collection of strange land offline mode work, find this collection child node, read the data that it is gathered under the offline mode of strange land by USB interface.

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