阅读说明：本技术 具备压制干扰的无线智能组合检波器系统 (Wireless intelligent combined detector system with interference suppression function ) 是由 李广超 万占伟 朱培民 侯超普 姚阳 崔晋华 毕黎明 张腾 唐晋 于 2020-08-03 设计创作，主要内容包括：本发明公开了一种所述具备压制干扰的无线智能组合检波器系统,包括中心基点检波器和检波器串,检波器串与中心基点检波器串联连接,中心基点检波器用于采集来自地面的振动信息、接收检波器串传输的检测信息,并将接收的信息转换为数字信号后输出给控制单元,控制单元将输入的信息存储并发送给采集总站。本发明优点在于以一个中心基点检波器为连接基点,通过与检波器串组合,使每一个检波器组合成为一个相对独立的采集系统。因此,省去了在地震勘探中需要投入大量的工作去对各检波器串进行检查、校验、布置、维修等,降低了地震勘探的成本。同时,经GPS授时定位模块的统一授时,确保各检波器串之间工作的一致性,提高了检测数据的精度。(The invention discloses a wireless intelligent combined detector system with interference suppression function, which comprises a center base point detector and a detector string, wherein the detector string is connected with the center base point detector in series, the center base point detector is used for collecting vibration information from the ground, receiving detection information transmitted by the detector string, converting the received information into digital signals and outputting the digital signals to a control unit, and the control unit stores and sends the input information to a collecting main station. The invention has the advantages that a central base point detector is taken as a connection base point, and each detector is combined into a relatively independent acquisition system by being combined with the detector string. Therefore, a large amount of work required to be invested in seismic exploration to check, arrange, maintain and the like all the detector strings is omitted, and the cost of seismic exploration is reduced. Meanwhile, through the unified time service of the GPS time service positioning module, the working consistency among all the detector strings is ensured, and the precision of the detection data is improved.)

1. The utility model provides a wireless intelligence combination wave detector system that possesses suppression interference which characterized in that: the system comprises a center base point detector and a detector string, wherein the detector string is connected with the center base point detector in series, the center base point detector is used for collecting vibration information from the ground, receiving detection information transmitted by the detector string, converting the received information into digital signals and outputting the digital signals to a control unit, and the control unit stores and sends the input information to a collecting main station.

2. The wireless intelligent combination detector system with interference mitigation of claim 1, wherein: the center base point detector comprises a sealed shell, a control unit and a center base point detector core, wherein the control unit and the center base point detector core are arranged in the sealed shell; the side wall of the sealed shell is provided with a waterproof electric connector used for being connected with the detector string, a tail cone is vertically and downwards fixed on the bottom wall of the sealed shell, the tail cone penetrates through the bottom wall of the sealed shell in a sealing mode through a connecting bolt and is fixedly connected with a base of a center base point detector core arranged in the sealed shell, and an information output interface of the center base point detector core is connected with an information input interface of the control unit.

3. The wireless intelligent combination detector system with interference mitigation of claim 2, wherein: the connecting bolt is a stud bolt, one end of the stud bolt is in threaded connection with the base of the core of the central base point wave detector, and the other end of the stud bolt is in threaded connection with the caudal vertebra.

4. The wireless intelligent combination detector system with interference mitigation of claim 2, wherein: and a waterproof and shockproof inner pad is arranged on the inner wall of the sealing shell.

5. The wireless intelligent combination detector system with interference mitigation of claim 4, wherein: a groove is formed in the bottom wall of the inner cavity of the sealed shell around the stud, and epoxy resin waterproof sealing materials are filled in the groove.

6. The wireless intelligent combination detector system with interference mitigation according to claim 1 or 2, wherein: the control unit comprises a central controller, a wireless communication module, an analog-to-digital conversion module, a GPS time service positioning module, a storage module and a power supply unit for supplying electric energy to the central controller; the central controller communication interface is respectively in communication connection with the wireless communication module, the analog-to-digital conversion module, the GPS time service positioning module and the storage module; the central controller is used for carrying out GPS time service on the detector string before working, ensuring that each detector of the detector string receives signals synchronously, carrying out digital processing on detection information transmitted by the detector string, outputting the detection information to the storage module, and sending the detection information subjected to digital processing to the acquisition master station through the wireless communication module according to a set instruction.

Technical Field

The invention relates to a geophone for seismic exploration, in particular to a wireless intelligent combined geophone system with interference suppression function.

Background

The seismic exploration method is widely applied to the aspects of engineering exploration, detection, geological disaster prediction and monitoring and the like. In seismic exploration, a detector is directly arranged on the ground, vibration caused by artificial or natural earthquake is picked up, and a vibration signal is transmitted to a storage display device, so that data acquisition is the most critical link, only real and reliable original data with high signal-to-noise ratio is obtained, the optimal section achievement can be obtained through data processing, and the final geological interpretation is facilitated.

The adoption of the detector combination in seismic exploration is one of important means for suppressing interference, and the detector combination can suppress regular interference waves and random interference waves. Here, "regular interference waves" (such as surface waves, refracted waves, sound waves, etc.) are suppressed mainly by the combined "directional effect", and "random interference waves" are suppressed by the combined "statistical effect".

According to the theory of study of the wei-jun-dong (2011), linear equal-sensitivity combinations are added after the 'gamma max + 3' detectors under the condition that other factors are not changed (wherein gamma max = combination base distance/minimum interference wave dependent wavelength), and the attenuation capacity of the combinations to the regular interference waves is not improved obviously along with the increase of the number of the detectors. That is, the greater the number of detectors, the more significant the attenuation of random interference in the case of a combined base distance determination (including in the case where the intra-group distance is less than the random interference correlation radius); but after increasing to a certain amount, no significant change in the attenuation effect occurs. The research theory of Wei-Relay-east (2011) indicates that the reasonable number of detectors in the combination is determined to be combined with the arrangement form of the combination, and the unreasonable sensitivity distribution caused by unreasonable combination patterns is an important reason for reducing the noise suppression capability of the combination.

Disclosure of Invention

The invention aims to provide a wireless intelligent combined detector system with interference suppression function.

In order to achieve the purpose, the invention adopts the following technical scheme:

the wireless intelligent combined detector system with interference suppression comprises a center base point detector and a detector string, wherein the detector string is connected with the center base point detector in series, the center base point detector is used for collecting vibration information from the ground, receiving detection information transmitted by the detector string, converting the received information into digital signals and outputting the digital signals to a control unit, and the control unit stores and sends the input information to a collecting main station.

The central base point detector comprises a sealed shell and the control unit arranged in the sealed shell; the side wall of the sealed shell is provided with a waterproof electric connector used for being connected with the detector string, a tail cone is vertically and downwards fixed on the bottom wall of the sealed shell, the tail cone penetrates through the bottom wall of the sealed shell in a sealing mode through a connecting bolt and is fixedly connected with a base of a center base point detector core arranged in the sealed shell, and an information output interface of the center base point detector core is connected with an information input interface of the control unit.

The connecting bolt is a stud bolt, one end of the stud bolt is in threaded connection with the base of the core of the central base point wave detector, and the other end of the stud bolt is in threaded connection with the caudal vertebra.

And a waterproof and shockproof inner pad is arranged on the inner wall of the sealing shell.

A groove is formed in the bottom wall of the inner cavity of the sealed shell around the stud, and epoxy resin waterproof sealing materials are filled in the groove.

The control unit comprises a central controller, a wireless communication module, an analog-to-digital conversion module, a GPS time service positioning module, a storage module and a power supply unit for supplying electric energy to the central controller; the central controller communication interface is respectively in communication connection with the wireless communication module, the analog-to-digital conversion module, the GPS time service positioning module and the storage module; the central controller is used for carrying out GPS time service on the detector string before working, ensuring that each detector of the detector string receives signals synchronously, carrying out digital processing on detection information transmitted by the detector string, outputting the detection information to the storage module, and sending the detection information subjected to digital processing to the acquisition master station through the wireless communication module according to a set instruction.

The invention has the advantages that a central base point detector is taken as a connection base point, and each detector is combined into a relatively independent acquisition system by being combined with the detector string. Therefore, a large amount of work required to be invested in seismic exploration to check, arrange, maintain and the like all the detector strings is omitted, and the cost of seismic exploration is reduced. Meanwhile, through the unified time service of the GPS time service positioning module, the working consistency among all the detector strings is ensured, and the precision of the detection data is improved.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic block diagram of the circuit of the present invention.

Detailed Description

The following describes embodiments of the present invention in detail with reference to the drawings, which are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are provided, but the scope of the present invention is not limited to the following embodiments.

As shown in fig. 1 and 2, the wireless intelligent combined detector system with interference suppression according to the present invention includes a center-based detector 1 and a detector string 2, wherein the detector string 2 is connected in series with the center-based detector 1, the center-based detector 1 is configured to collect vibration information from the ground, receive detection information transmitted by the detector string 2, convert the received information into a digital signal, and output the digital signal to a control unit 3, and the control unit 3 stores and transmits the input information to a collection central station.

The center base point detector 1 comprises a sealing shell 4, a control unit 3 arranged in the sealing shell 4, a waterproof and shockproof inner pad 5 is arranged on the inner wall of the sealing shell 4, a waterproof electric connector 6 used for connecting the detector string 2 is arranged on the side wall of the sealing shell 4, a tail cone 7 is vertically and downwards fixed on the bottom wall of the sealing shell 4, the tail cone 7 penetrates through the bottom wall of the sealing shell 4 in a sealing mode through a stud 8 and is fixedly connected with a base 10 of a center base point detector core 9 arranged in the sealing shell 4, and an information output interface of the center base point detector core 9 is connected with an information input interface of the control unit 3.

A groove is formed in the bottom wall of the inner cavity of the sealing shell 4 around the stud bolt 8, and epoxy resin waterproof sealing materials 11 are filled in the groove, so that the sealing effect of the sealing shell 4 is further improved.

As shown in fig. 2, the control unit 3 includes a central controller, a power supply unit supplying power to the central controller; the central controller communication interface is respectively in communication connection with the wireless communication module, the analog-to-digital conversion module, the GPS time service positioning module and the storage module; the central controller is used for carrying out GPS time service on the detector string before work, ensuring that each detector of the detector string receives signals synchronously, carrying out digital processing on detection information transmitted by the detector string, outputting the detection information to the storage module, and sending the detection information after the digital processing to the acquisition master station through the wireless communication module according to a set instruction.

In practical application, the conventional geophone string 2 is connected in series with the center-based-point geophone core 9 through the waterproof electric connector 6, and the working consistency of the geophone string 2 is ensured through the unified time service of the GPS time service positioning module. The central base point detector 1 and the conventional detector string 2 receive vibration signals from the ground, the vibration signals are transmitted to the analog-to-digital conversion module under the instruction of the central controller, and data after analog-to-digital conversion are stored in the storage module or transmitted to the acquisition master station through the wireless transmission module, so that the acquisition work of one time of data is completed.