CN104459570A - Multi-path parallel magnetic field signal collecting and transmitting system and method - Google Patents
Multi-path parallel magnetic field signal collecting and transmitting system and method Download PDFInfo
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- CN104459570A CN104459570A CN201410668372.1A CN201410668372A CN104459570A CN 104459570 A CN104459570 A CN 104459570A CN 201410668372 A CN201410668372 A CN 201410668372A CN 104459570 A CN104459570 A CN 104459570A
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Abstract
The invention discloses a multi-path parallel magnetic field signal collecting and transmitting system. The system comprises a signal processing module, a parallel signal switching module, a multi-path signal collecting module and a signal transmitting and processing module. The signal processing module catches magnetic field signals, converts the magnetic field signals into electric signals and amplifies and conditions the electric signals. The parallel signal switching module controls logic processing of the electric signals, releasing of over-the-ground signals and switching of signal channels so as to obtain multi-path multiplexing electric signals. The multi-path signal collecting module samples the multi-path multiplexing electric signals to obtain multi-path signal sampling data. The signal transmitting and processing module transmits the multi-path signal sampling data to a computer. By means of the parallel collecting and multi-path multiplexing method, a linear array of a magnetic field sensor is utilized for collecting the magnetic field signals and transmitting the magnetic field signals to a computer system, and the complex magnetic signal characters of a specific detected target can be analyzed with higher precision and in a larger measuring range. The invention further discloses a multi-path parallel magnetic field signal collecting and transmitting method.
Description
Technical field
The present invention relates to magnetic field data collection analysis field, particularly relate to a kind of collection of multidiameter delay field signal and transmission system and method thereof.
Background technology
In magnetic field data collection analysis field, usually use magnetic intensity meter to carry out the measurement of magnetic field intensity, but magnetic intensity meter can only measure the magnetic induction density on certain direction or certain several direction usually, cannot carry out continuous coverage to the magnetic field intensity in complicated magnetic field.
In occasions such as metal defect detection or metallic magnetic specificity analysises, usually need scanning and the measurement of complicated field signal being carried out to continuous various dimensions.In the measuring process of complicated field signal, a large amount of field signal data of acquisition need to gather quickly and efficiently and transmit, and represented neatly, process and analyze by computing machine.So existing collection measuring method is unfavorable for that the complicated field signal of the occasions such as metal defect detection or metallic magnetic specificity analysis is measured.
In order to overcome above-mentioned defect of the prior art, the present invention proposes a kind of collection of multidiameter delay field signal and transmission system and method thereof.The present invention, by parallel acquisition and multiplexed way, realizes the field signal of collection linear array and is transferred to computer system, can be used for the complicated magnetic signal feature analyzing specific measured target.
Summary of the invention
The invention discloses a kind of collection and transmission system of multidiameter delay field signal, comprising: signal processing module, for catching field signal, described field signal being converted to the described electric signal of electric signal and amplification and conditioning; Parallel signal handover module, it communicates with described signal processing module, controls the logical process of described electric signal, controls, to earth signal release and switching signal passage, to obtain multiplexed electric signal; Signal multi pass acquisition module, it communicates with described parallel signal handover module, for sampling to described multiplexed electric signal, obtains multiple signals sampled data; And Signal transmissions and processing module, itself and described signal multi pass acquisition module communication, for transmitting described multiple signals sampled data in computing machine, undertaken reducing and digital processing by described computing machine.
In the collection of described multidiameter delay field signal that the present invention proposes and transmission system, described signal processing module comprises magnetic field sensor unit, described magnetic field sensor unit comprises two array of magnetic field and operational amplifier that are made up of magnetic field sensor, described magnetic field sensor is arranged successively, and the output multi-channel of described magnetic field sensor distributes and is connected with described operational amplifier independently.
In the collection of described multidiameter delay field signal that the present invention proposes and transmission system, described parallel signal handover module comprises high speed electronic switch, and switching signal passage adopts high speed electronic switch to realize.
In the collection of described multidiameter delay field signal that the present invention proposes and transmission system, described signal multi pass acquisition module utilizes the analog-digital converter of high sampling rate to gather the electric signal of each signalling channel.
In the collection of described multidiameter delay field signal that the present invention proposes and transmission system, described Signal transmissions and processing module comprise express network switch, and described Signal transmissions and processing module are by gigabit Ethernet transmit signal data.
The invention allows for a kind of collection and transmission method of multidiameter delay field signal, comprise the steps:
Signal transacting step, utilizes signal processing module mobile along testee surface, catches the field signal of testee in real time and convert field signal to electric signal, amplifies and transfer to parallel signal handover module after nursing one's health to described electric signal;
Parallel signal switch step, described parallel signal handover module control described electric signal logical process, control, to earth signal release and switching signal passage, to obtain multiplexed electric signal, and by described multiplexed electric signal transmission to signal multi pass acquisition module;
Signal multi pass acquisition step, described signal multi pass acquisition module receives described multiplexed electric signal, and utilizes the analog-digital converter of high sampling rate to sample, and obtains multiple signals sampled data;
Signal transmissions and treatment step, described multiple signals sampled data is transferred to computing machine by gigabit Ethernet as sensing network by described Signal transmissions and processing module, and described computing machine reduces and digital processing to described multiple signals sampled data after receiving.
The present invention propose described collection and transmission method in, in described signal transacting step, described field signal be use magnetic field sensor unit catch obtain.
The present invention propose described collection and transmission method in, described magnetic field sensor unit comprises two array of magnetic field and operational amplifier that are made up of magnetic field sensor, described magnetic field sensor catches the magnetic field data of region respectively, obtain described field signal respectively by after described operational amplifier, the field signal after described operational amplifier amplifies can be sampled by described analog-digital converter.
The present invention propose described collection and transmission method in, in described parallel signal switch step, parallel signal handover module uses high speed electronic switch to carry out signal path switching at a high speed to described electric signal, makes described electric signal be suitable for being sampled by the analog-digital converter of described high sampling rate.
In the described collection that the present invention proposes and transmission method, express network switch in described Signal transmissions and treatment step, is utilized to form the sensing network comprising the multiple signals sampled data obtained by multiple signal multi pass acquisition module.
The present invention is by parallel acquisition and multiplexed way, magnetic field sensor is realized to be applicable to gather complicated field signal, its beneficial effect is, continuously, the complicated field signal of the scanning of various dimensions, gather the field signal of linear array in real time and be transferred to computer system fast, utilizing the complicated magnetic signal feature of the specific measured target of conventional magnetic field sensors Realization analysis.
The present invention utilizes the methods such as express network switch, forms more massive sensing network, realizes measurement target being carried out to more high precision and more wide-measuring range.
Accompanying drawing explanation
Fig. 1 is the collection of multidiameter delay field signal of the present invention and the schematic diagram of transmission system.
Fig. 2 is the process flow diagram of collection of the present invention and transmission method.
Fig. 3 is the schematic diagram of sensing network.
Fig. 4 is the collection of multidiameter delay field signal and the structural drawing of transmission system in embodiment.
Fig. 5 is the collection of multidiameter delay field signal and the schematic diagram of transmission system in embodiment.
Fig. 6 is the field signal intensity map that present system records.
Embodiment
In conjunction with following specific embodiments and the drawings, the present invention is described in further detail.Implement process of the present invention, condition, experimental technique etc., except the following content mentioned specially, be universal knowledege and the common practise of this area, the present invention is not particularly limited content.
The present invention is by parallel acquisition, and multiplexed way, by the field signal collection of linear array, and is transferred to computer system, thus representing neatly, processing magnetic field data, for analyzing the complicated magnetic signal feature of specific measured target.
As shown in Figure 1, the collection of multidiameter delay field signal of the present invention and transmission system are complicated magnetic field data collection analysis systems, comprise signal processing module 1, parallel signal handover module 2, signal multi pass acquisition module 3 and process of signal transmission module 4.
Wherein, signal processing module 1 realizes catching field signal, field signal is converted to electric signal and to the amplification of electric signal and conditioning.Signal processing module 1 comprises magnetic field sensor unit, and magnetic field sensor unit comprises two array of magnetic field and operational amplifier that are made up of magnetic field sensor.In magnetic field sensor unit when testee surface is mobile, magnetic field sensor wherein catches the magnetic field data of region respectively, obtain field signal respectively by after operational amplifier, the field signal after operational amplifier amplifies can be sampled by analog-digital converter.
Parallel signal handover module 2 is connected with signal processing module 1, parallel signal handover module 2 comprises high speed electronic switch, utilize the logical process of high speed electronic switch control signal processing module gained electric signal, control, to earth signal release and switching signal passage, to obtain multiplexed electric signal.
Signal multi pass acquisition module 3 is connected with parallel signal handover module 2, signal multi pass acquisition module 3 comprises the analog-digital converter of high sampling rate, it obtains the field signal data of testee for carrying out ADC sampling to multiplexed electric signal, realize multi pass acquisition field signal.
Signal transmissions is connected with signal multi pass acquisition module 3 with processing module 4, realizes with gigabit Ethernet signal transmission and computer disposal signal.Signal transmissions and processing module 4 use gigabit Ethernet to transmit data, comprise as express network switch etc. can form the equipment of more extensive sensing network, and comprise the data processing equipments such as multi-purpose computer to process multiple signals sampled data.
The collection of multidiameter delay field signal of the present invention and the collection of transmission system and transmission method, as shown in Figure 2, comprise the steps:
Signal transacting step, utilizes signal processing module 1 mobile along testee surface, catches the field signal of testee in real time and convert field signal to electric signal, amplifies and transfer to parallel signal handover module 2 after nursing one's health to electric signal.Field signal after operational amplifier amplifies can be sampled by analog-digital converter.
Parallel signal switch step, parallel signal handover module 2 control electric signal logical process, control, to earth signal release and switching signal passage, to obtain multiplexed electric signal, and by multiplexed electric signal transmission to signal multi pass acquisition module 3.Wherein, by using high speed electronic switch to carry out switching at a high speed making field signal can be gathered by the high sampling rate ADC analog-digital converter of signal multi pass acquisition module 3.
Signal multi pass acquisition step, signal multi pass acquisition module 3 receives multiplexed electric signal, and utilizes the analog-digital converter of high sampling rate to sample, and obtains multiple signals sampled data.
Signal transmissions and treatment step, multiple signals sampled data is transferred to computing machine by gigabit Ethernet as sensing network by Signal transmissions and processing module 4, and computing machine reduces and digital processing to multiple signals sampled data after receiving.
Preferably, can by adopting the modes such as express network switch in transmission and treatment step, the gigabit Ethernet of multiple signal transmission multi pass acquisition module 3 the data obtained is formed more massive sensing network, as shown in Figure 3, namely this sensing network is corresponding multiple signal transmission multi pass acquisition module 3 the data obtained, thus more high precision, wider measurement can be carried out to measured target.
Embodiment:
Fig. 4 shows collection and the transmission system of multidiameter delay field signal in specific embodiment.As shown in Figure 4 and Figure 5, utilize signal processing module 1 to move by assigned direction and scan the process that defective tested metal target realizes signal, electric signal can be gathered by analog-digital converter ADC.Caught the change of field signal separately by the magnetic field sensor in two array of magnetic field and physically converted field signal to electric signal, this electric signal amplifies the multi-channel electric signal obtaining processing by operational amplifier.The process of signal comprises the magnetic signal of multichannel to a series of process such as electric signal conversion, signal amplification and signal conditions.
After parallel signal handover module 2 receives electric signal, the logical process controlling multi-channel electric signals by S1 to Sn many high speed electronic switchs, the release controlling earth signal, make the passage of multi-channel electric signal realize switching at a high speed, obtain multiplexed electric signal.
After signal multi pass acquisition module 3 receives multiplexed electric signal, by high sampling rate analog-digital converter, multiplexed electric signal is converted to digital signal from simulating signal, thus realize the multi pass acquisition of signal, obtain the multiple signals sampled data of measured target.
Multiple signals sampled data gigabit Ethernet is transferred to computer disposal by Signal transmissions and processing module 4, the complicated magnetic signal feature of Computer Analysis measured target.Preferably, more massive sensing network can be formed by express network switch, namely this sensing network comprises the multiple signals sampled data obtained by multiple signal multi pass acquisition module 3, thus has carried out more high precision, wider measurement to measured target.
As Fig. 6, be the data that in present system, multi-purpose computer reception sensing network transmits, carry out reducing and digital processing, the multichannel field signal intensity map recorded.The complicated magnetic signal feature of measured target can be analyzed by signal processing results, such as, detect the defect of tested metal.
Protection content of the present invention is not limited to above embodiment.Under the spirit and scope not deviating from inventive concept, the change that those skilled in the art can expect and advantage are all included in the present invention, and are protection domain with appending claims.
Claims (10)
1. the collection of multidiameter delay field signal and a transmission system, is characterized in that, comprising:
Signal processing module (1), for catching field signal, converts the described electric signal of electric signal and amplification and conditioning to by described field signal;
Parallel signal handover module (2), it communicates with described signal processing module (1), controls the logical process of described electric signal, controls, to earth signal release and switching signal passage, to obtain multiplexed electric signal;
Signal multi pass acquisition module (3), it communicates with described parallel signal handover module (2), for sampling to described multiplexed electric signal, obtains multiple signals sampled data; And
Signal transmissions and processing module (4), it communicates with described signal multi pass acquisition module (3), for transmitting described multiple signals sampled data in computing machine, is undertaken reducing and digital processing by described computing machine.
2. the collection of multidiameter delay field signal as claimed in claim 1 and transmission system, it is characterized in that, described signal processing module (1) comprises magnetic field sensor unit, described magnetic field sensor unit comprises two array of magnetic field and operational amplifier that are made up of magnetic field sensor, described magnetic field sensor is arranged successively, and the output multi-channel of described magnetic field sensor distributes and is connected with described operational amplifier independently.
3. the collection of multidiameter delay field signal as claimed in claim 1 and transmission system, it is characterized in that, described parallel signal handover module (2) comprises high speed electronic switch, and switching signal passage adopts high speed electronic switch to realize.
4. the collection of multidiameter delay field signal as claimed in claim 1 and transmission system, it is characterized in that, described signal multi pass acquisition module (3) utilizes the analog-digital converter of high sampling rate to gather the electric signal of each signalling channel.
5. the collection of multidiameter delay field signal as claimed in claim 1 and transmission system, it is characterized in that, described Signal transmissions and processing module (4) comprise express network switch, and described Signal transmissions and processing module (4) are by gigabit Ethernet transmit signal data.
6. the collection of multidiameter delay field signal and a transmission method, is characterized in that, comprise the steps:
Signal transacting step, utilize signal processing module (1) mobile along testee surface, the field signal of real-time seizure testee also converts field signal to electric signal, amplifies and transfer to parallel signal handover module (2) after nursing one's health to described electric signal;
Parallel signal switch step, described parallel signal handover module (2) control described electric signal logical process, control to earth signal release and switching signal passage, obtain multiplexed electric signal, and by described multiplexed electric signal transmission to signal multi pass acquisition module (3);
Signal multi pass acquisition step, described signal multi pass acquisition module (3) receives described multiplexed electric signal, and utilizes the analog-digital converter of high sampling rate to sample, and obtains multiple signals sampled data;
Signal transmissions and treatment step, described multiple signals sampled data is transferred to computing machine by gigabit Ethernet as sensing network by described Signal transmissions and processing module (4), and described computing machine reduces and digital processing to described multiple signals sampled data after receiving.
7. collection as claimed in claim 6 and transmission method, is characterized in that, in described signal transacting step, described field signal uses magnetic field sensor unit to catch to obtain.
8. collection as claimed in claim 7 and transmission method, it is characterized in that, described magnetic field sensor unit comprises two array of magnetic field and operational amplifier that are made up of magnetic field sensor, described magnetic field sensor catches the magnetic field data of region respectively, obtain described field signal respectively by after described operational amplifier, the field signal after described operational amplifier amplifies can be sampled by described analog-digital converter.
9. collection as claimed in claim 6 and transmission method, it is characterized in that, in described parallel signal switch step, parallel signal handover module (2) uses high speed electronic switch to carry out signal path switching at a high speed to described electric signal, makes described electric signal be suitable for being sampled by the analog-digital converter of described high sampling rate.
10. collection as claimed in claim 6 and transmission method, it is characterized in that, in described Signal transmissions and treatment step, utilize express network switch to form the sensing network comprising the multiple signals sampled data obtained by multiple signal multi pass acquisition module (3).
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| CN106970144A (en) * | 2016-01-13 | 2017-07-21 | 宝山钢铁股份有限公司 | Strip Inner Defect Testing signal processing circuit and method |
| CN109633416A (en) * | 2018-12-29 | 2019-04-16 | 深圳开立生物医疗科技股份有限公司 | A kind of detection method of stepper motor driving circuit, apparatus and system |
| CN110031142A (en) * | 2019-04-15 | 2019-07-19 | 东南大学 | A kind of signal processing system for six-dimension force sensor |
| CN115542205A (en) * | 2022-11-24 | 2022-12-30 | 杭州慧翔电液技术开发有限公司 | System and method for monitoring magnetic field of superconducting magnet in real time |
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