CN212515065U - Seismic data acquisition station, seismic data acquisition unit and connecting device - Google Patents

Abstract

The utility model relates to a seismic data acquisition station and seismic data acquisition unit and connecting device, seismic data acquisition unit, accessible connecting device can dismantle with external wave detector and be connected, place in including the casing in power supply module in the casing and set up in the casing and with the seismic data acquisition circuit board that power supply module connects and can be connected with external wave detector. This seismic data acquisition unit is through placing power supply module in the casing in and be connected with seismic data acquisition circuit board, and it need not external battery package, can supply power, and need not to break off power supply module and can realize gathering data mode and data download mode's switching, and it has easy and simple to handle, the strong advantage of power supply reliability.

Description

Seismic data acquisition station, seismic data acquisition unit and connecting device

Technical Field

The utility model relates to a seismic exploration technical field, more specifically say, relate to a seismic data acquisition station and seismic data acquisition unit and connecting device.

Background

In the related art, a seismic data acquisition station with an external detector generally externally arranges a battery pack which is responsible for power supply of the acquisition station, an acquisition unit of the acquisition station generally has two ports, one port is connected with an external battery pack for power supply in a data acquisition mode, and is connected with a data download frame for downloading acquired seismic data in a data download working mode; the other port is connected with a special interface of the detector, and the detector is externally connected during data acquisition. The seismic data acquisition station in the related art can switch the data acquisition mode and the data downloading working mode only by disconnecting an external battery or a downloading frame, and the operation steps are complex.

In addition, the external detector is connected with the detector through a cable, the cable connected with the detector is often bent in use, the multi-strand metal wire part or even all the multi-strand metal wire part in the cable is easily broken due to frequent bending, the normal data acquisition of a data acquisition station is affected, the service life of the cable is short, and the bending life is about 300 times. In addition, when the cable is arranged in the field, the cable sheath is broken by rolling by heavy objects, mice and other small animals, so that the internal lead of the cable is exposed, and electric leakage or circuit break occurs.

The connecting cable of the external battery of the acquisition station can also generate similar bending conditions, so that the power supply of the acquisition station is unstable and even the power is cut off.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in providing a modified seismic data acquisition unit, further providing a modified seismic data acquisition unit and the connecting device of wave detector, further providing a modified seismic data acquisition station.

The utility model provides a technical scheme that its technical problem adopted is: a seismic data acquisition unit is constructed, can be detachably connected with an external detector through a connecting device, and comprises a shell, a power supply assembly arranged in the shell, and a seismic data acquisition circuit board arranged in the shell, connected with the power supply assembly and connected with the external detector.

Preferably, the shell is provided with a socket assembly which is connected with the seismic data acquisition circuit board and can be detachably connected with a plug assembly of the connecting device;

the shell is also provided with an external inserting port which is detachably connected with the downloading frame; the plug-in port comprises a plurality of pin leading-out pins connected with the seismic data acquisition circuit board;

the seismic data acquisition unit further comprises a dustproof cover assembly detachably arranged on the plug port.

Preferably, the seismic data acquisition unit further comprises a first waterproof sealing structure, and the housing comprises an upper cover and a lower shell matched with the upper cover; the first waterproof sealing structure is arranged between the upper cover and the lower shell;

and/or the seismic data acquisition unit further comprises a second waterproof sealing structure arranged in the plug port;

and/or the seismic data acquisition unit further comprises a third waterproof sealing structure arranged between the dustproof cover component and the plug port;

and/or the seismic data acquisition unit further comprises a mounting bracket arranged in the shell for mounting the power supply assembly;

and/or, further comprising a first shock pad located between the seismic data acquisition circuit board and the bottom surface of the upper cover;

and/or the seismic data acquisition unit comprises a second shock pad positioned between the power supply assembly and the lower shell;

and/or the seismic data acquisition unit comprises a switch for turning on or off the power supply assembly.

Preferably, the lower case is an aluminum case;

and/or the seismic data acquisition circuit board is electrically connected with the plug port through a flexible line circuit board;

and/or a foolproof structure is arranged between the dustproof cover component and the plug port; the dust cover assembly comprises a cover body; the fool-proof structure comprises a conducting strip which is arranged in the cover body and used for short-circuiting at least two pin leading-out pins on the plug port when the dustproof cover assembly and the plug port are installed in place;

and/or the seismic data acquisition unit comprises a detection circuit for detecting whether the dust cover assembly and the plug port are installed in place or not and a first prompting device which is connected with the detection circuit and sends a prompting signal when the dust cover assembly is not installed in place;

and/or the seismic data acquisition unit comprises a leakage detection circuit for detecting whether the detector leaks electricity and a second prompting device which is connected with the leakage detection circuit and used for sending a prompting signal when the detector leaks electricity;

and/or a transmission unit for transmitting and monitoring information of the seismic data acquisition station is arranged on the seismic data acquisition circuit board.

Preferably, the detection circuit comprises a detection chip and a switch, the detection chip comprises a detection input pin IN and a detection output pin OUT which are correspondingly connected with two of the plurality of pin-OUT pins, and the switch is arranged between the detection chip and the plurality of pin-OUT pins and connects or disconnects the detection input pin IN and the detection output pin OUT with the two pin-OUT pins according to the control of the detection chip;

when the dustproof cover component is not installed IN place, the detection chip detects that a signal of the detection input pin IN is a high level;

when the dustproof cover assembly is installed IN place, at least two pin leading-out pins are IN short circuit, and the detection chip detects that a signal of the detection input pin IN is at a low level;

the electric leakage detection circuit comprises an electric leakage detection chip, a data acquisition module connected with the electric leakage detection chip, a first connecting wire connected with the data acquisition module and the detector, a second connecting wire connected with the data acquisition module and the detector, a first switch and a second switch which are arranged on the first connecting wire side by side, a third switch and a fourth switch which are arranged on the second connecting wire side by side, a test wire connected with the first connecting wire and positioned between the first switch and the second switch, a resistor arranged on the test wire, a fifth switch arranged on the test wire and positioned between the resistor and the first switch, and a ground wire connected with the fourth switch;

the detector does not leak electricity, the resistance voltage drop is zero, and the voltage detected by the data acquisition module is equal to the test direct-current power supply voltage of the test line;

the detector leaks electricity, the resistor generates voltage drop, and the voltage detected by the data acquisition module is smaller than the test direct-current power supply voltage of the test wire.

Preferably, the dust cover assembly further comprises a silica gel seat which can extend into the cover body and is assembled with the cover body;

the silica gel base is provided with a jack for the pin of the leading-out pin to be correspondingly inserted and preventing the cover body from rotating to drive the silica gel base to rotate;

and an annular anti-collision assembly surrounding at least part of the periphery of the pin is arranged in the inserting port.

The utility model discloses still construct a seismic data acquisition unit and connecting device of wave detector, including the cable body, can dismantle set up in cable body one end and with seismic data acquisition unit connection's plug subassembly, can dismantle set up in the cable body other end can dismantle the joint Assembly and the cover of being connected with external wave detector and locate with the increase on the cable body the bend radius of cable body is right the cable body carries out the protection subassembly that protects.

Preferably, the protection assembly comprises a plurality of annular wire protecting rings which are sleeved on the cable body and are arranged at equal intervals;

the grommet is a rubber grommet, a silica gel grommet or a plastic grommet.

Preferably, the plug assembly comprises a plug connected with a socket assembly of the seismic data acquisition unit;

and/or the joint assembly comprises a joint detachably connected with the geophone;

the plug comprises a mounting seat and a plug connector which is arranged in a protruding mode from the end face of one end of the mounting seat and is connected with the seismic data acquisition unit;

and/or, the joint is a threaded joint;

the seismic data acquisition unit further comprises a fastener which penetrates out of the mounting seat and is fixedly connected with the socket assembly of the seismic data acquisition unit.

The utility model discloses still construct a seismic data acquisition station, include the utility model discloses seismic data acquisition unit and the connecting device of seismic data acquisition unit and wave detector.

Implement the utility model discloses a seismic data acquisition station and seismic data acquisition unit and connecting device have following beneficial effect: this seismic data acquisition unit is through placing power supply module in the casing in and be connected with seismic data acquisition circuit board, and it need not external battery package, can supply power, and need not to break off power supply module and can realize gathering data mode and data download mode's switching, and it has easy and simple to handle, the strong advantage of power supply reliability.

This connecting device of seismic data acquisition unit and wave detector establishes the protection component through the cover on the cable body, and then can increase the bend radius of cable body and protect the cable body, and then can avoid the cable to damage and lead to the cable inner conductor to expose and the electric leakage or open circuit, improve the security and the life of cable.

This seismic data acquisition station is through setting up the utility model discloses a seismic data acquisition unit and connecting device have easy and simple to handle, the power supply reliability is strong, the security is strong and long service life's advantage.

Drawings

The invention will be further explained with reference to the drawings and examples, wherein:

FIG. 1 is an exploded view of a seismic data acquisition station according to some embodiments of the present invention;

FIG. 2 is a partial cutaway view of the seismic data acquisition station of FIG. 1;

FIG. 3 is a schematic diagram of the operational principle of the detection circuit of the seismic data acquisition station shown in FIG. 1;

FIG. 4 is a schematic diagram of the operational principle of the electrical leakage detection circuit of the seismic data acquisition station shown in FIG. 1.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 illustrates some preferred embodiments of the seismic data acquisition station of the present invention. The seismic data acquisition station can be used for acquiring seismic data and has the advantages of simplicity and convenience in operation, high power supply reliability, high safety and long service life.

As shown in FIG. 1, the seismic data acquisition station may include a seismic data acquisition unit 10 and a connection device 20. The seismic data acquisition unit 10 can be detachably connected with an external detector through the connecting device 20, and can acquire data of the detector and further acquire seismic data. The connection device 20 may be used to connect the seismic data acquisition unit 10 and the geophone to electrically and mechanically connect the seismic data acquisition unit 10 and the geophone to facilitate data transmission between the geophone and the base data acquisition unit 10.

Further, in some embodiments, the seismic data acquisition unit 10 may include a housing, a power supply assembly 12, and a seismic data acquisition circuit board 13. The housing may be used to house the power supply assembly and the seismic data acquisition circuit board 13. The power supply assembly may be built into the housing and it may be connected to the seismic data acquisition circuit board 13, which may be used to power the geophone. Through with this power supply module is built-in, need not external battery package, can supply power, and need not to break off power supply module and can realize gathering data mode and data download mode's switching, it has easy and simple to handle, the strong advantage of power supply reliability. The seismic data acquisition circuit board 13 is disposed in the housing, can be connected to the external detector and the power module 12, and can be used to acquire data of the detector and further acquire seismic data.

Further, in some embodiments, the housing includes an upper cover 111 and a lower cover 112. The upper cover 111 may be a rectangular parallelepiped structure, and has an opening on its top surface and an accommodating cavity on its inner side communicating with the opening. The lower casing 112 can be matched with the upper cover 111, and the lower casing 112 can cover the upper cover 111

In some embodiments, the top cover 111 may be made of plastic or metal, and in particular, in some embodiments, the top cover 111 may be made of nylon. This inferior valve 112 can adopt the metal material to make, and in some embodiments, this inferior valve 112 can be the aluminum hull, and it has electric conductivity, and it can lead the high voltage that external detector cable induction thunder and lightning produced to ground under the thunder and lightning weather, and then avoids the thunder and lightning to cause the destruction to this seismic data acquisition station.

Further, in some embodiments, a receptacle assembly 1111 and a plug port 1112 are provided on the housing. Specifically, in some embodiments, the socket component 1111 and the plug port 1112 are disposed on the top cover 111, and the socket component 1111 may be disposed on one side of the top cover 111, and is a DCK socket component that is connectable to the seismic data acquisition circuit board 13 and detachably connected to the connection device 20. Specifically, in the present embodiment, the socket module 1111 can be plugged into the socket module 22 of the connection device 20, so as to connect an external detector through the connection device 20. In some embodiments, the receptacle assembly 1111 may be coupled to the seismic data acquisition circuit board 13 via internal guides. By removably attaching the receptacle assembly 1111 to the attachment device 20, deployment and maintenance of the seismic data acquisition unit 10 may be facilitated. The socket port 1112 can be disposed on the other side of the upper cover 111 opposite to the socket component 1111, and the socket port 1112 can be detachably connected to an external cradle, specifically, can be detachably connected to the external cradle through a connection data line, so as to transmit data to the external cradle.

In some embodiments, the socket port 1112 can include a plurality of pin-out pins 1113, and in some embodiments, the plurality of pin-out pins 1113 can include a data line pin-out, a test line pin-out, and a charging line pin-out. The data line leading-out pin can be correspondingly connected with the downloading rack and can be used for data transmission and downloading. The pin of the test line can be used to connect an external tester for the external tester to check and test the channel index of the seismic data acquisition unit 10. The charging pin may be connected to a power supply 12 inside the seismic data acquisition unit 10, and the power supply may be charged by an external charging device. In some embodiments, the docking port 1112 may be conductively connected to the seismic data acquisition circuit board 13 via a flexible circuit board (FPC) 16. The socket port 1112 can be connected to an AIO cradle for data downloading, charging and testing, and can simultaneously perform data downloading, charging and channel testing of an acquisition station. When this AIO downloader downloads earthquake data at a high speed, grafting port 1112 can use USB3.0 interface to change optic fibre, can charge to the inside power supply module of collection station simultaneously, the three-section type constant current constant voltage quick charge method tests the collection passageway of collection station simultaneously, use USB2.0 interface to carry out the channel characteristic test to the collection passageway of earthquake data acquisition unit 10, an AIO downloader carries out data download, charges, test operation to 48 earthquake data acquisition unit 10 simultaneously, improve exploration on-the-spot work efficiency.

Further, in some embodiments, a second waterproof sealing structure may also be disposed in the plug port 1112; the second sealing structure may be a waterproof sealing ring, and in particular, in some embodiments, the waterproof sealing ring may be a silicone ring, which may be used to prevent dust and water vapor from entering the plugging port 1112, thereby causing poor contact of the plugging port 1112.

Further, in some embodiments, the end surface of the socket port 1112 having the pin 1113 has a bump guard 1114. In some embodiments, the bumper assembly 1114 can include a bumper cup, and a bumper bone; the anti-collision collar may surround at least a portion of the pin 1113, and in some embodiments, may surround the center four pin 1113. Of course, it will be appreciated that in other embodiments, it may surround the periphery of all of the pin-out pins. The anti-collision ribs can be arranged on the inner side wall of the anti-collision outer ring in a protruding mode, and the number of the anti-collision ribs can be multiple, and in some embodiments, the number of the anti-collision ribs can be four. The height of the anti-collision bone can be higher than the protruding length of the pin 1113, so that the pin 1113 can be prevented from being damaged by external objects when the insertion port 1112 is opened. In some embodiments, four pin out 1113 of the connector port 1112 located in the bumper 1114 can be used for detection, the connection terminal can be switched by a switch to be used for data downloading or charging, and the pin out 1113 located at the periphery of the bumper 1114 can be used for data downloading, charging and testing.

In some embodiments, the cross-sectional shape and size of the lower shell 112 can be adapted to the cross-sectional shape and size of the upper cover 111, and the upper cover 111 and the lower shell are detachably connected by a connecting assembly 113. In some embodiments, the connection assembly 113 may be a set screw. In some embodiments, a plurality of vias may be disposed on the lower case 112, and the plurality of vias may be disposed along the circumference of the lower case 112. The lower cover 111 may have a plurality of screw holes corresponding to the through holes. The fastening screw can pass through the through hole and penetrate into the screw hole to be screwed with the screw hole, so that the lower shell 112 and the upper cover 111 can be detachably connected.

In some embodiments, the power supply component 12 may be a battery pack with a long endurance that may power the data acquisition circuit board 13. Specifically, in some embodiments, it may be four 21700 cylindrical lithium batteries arranged side by side. Of course, it can be understood that it may also be a plurality of 18650 cylindrical lithium batteries. It will be appreciated that in other embodiments, the power module 12 is not limited to including four batteries, and it is not limited to batteries of the same size.

In some embodiments, the seismic data acquisition circuit board 13 has a high-precision analog-to-digital converter (ADC), a GPS positioning module, a time synchronization function, and the like, and has a leakage self-checking function.

In some embodiments, the seismic data acquisition unit 10 further comprises a switch. The switch may be disposed on the housing and may be connected to the seismic data acquisition circuit board 13, which may be used to turn the power supply assembly 12 on or off. In some embodiments, the switch may be a magnetically controlled power switch. The magnetic control power switch can control the power on-off of the seismic data acquisition circuit board 13 through the magnetic part, and further can change the working state of the acquisition station. It will be appreciated that in other embodiments, the magnetically controlled power switch may be omitted.

In some embodiments, the seismic data acquisition station further includes a mounting bracket 14. The mounting bracket 14 may be disposed in the housing, and in particular, it may be mounted in the lower cover 111, which may be used for mounting the power module 12. The mounting bracket 14 may be disposed on the seismic data acquisition circuit board 13 and may be connected to the seismic data acquisition circuit board 13 through a connecting wire, or a plug terminal may be provided to plug the seismic data acquisition circuit board 13. The mounting bracket 14 may be made of an insulating material. In some embodiments, it may be made of a plastic material, and in particular, it may be made of a nylon material. In some embodiments, the mounting bracket 14 may define a receiving cavity therein for receiving the power module 12. In some embodiments, the mounting bracket 14 is not limited to compatibility with one capacity or type of battery, and may be compatible with a plurality of different capacities or types of batteries. When the size of the battery is smaller than that of the containing cavity, the battery can be fixed in the containing cavity by arranging the gasket. The mounting bracket 14 may also be configured to accommodate adjustable size cavities for accommodating batteries of different sizes. It will be appreciated that in other embodiments, the mounting bracket 14 may be omitted.

Further, in some embodiments, the seismic data acquisition station further comprises a first shock pad 15. The first shock absorbing pad 15, the first shock absorbing pad 15 may be disposed in the housing between the seismic data acquisition circuit board 13 and the bottom surface of the upper cover 111. The first cushion 15 may be a silicone cushion. Of course, it is understood that in other embodiments, the first shock absorbing pad 15 may not be limited to a silicone pad. It will be appreciated that in some embodiments, the first cushion 15 may be omitted.

Further, in some embodiments, the seismic data acquisition station further comprises a second shock pad. The second cushion may be disposed in the housing, which may be located between the power module 12 and the lower housing 112, which may prevent the seismic data acquisition unit 10 from vibrating and causing battery damage. In some embodiments, the second shock pad may be a silicone pad. It will be appreciated that in some embodiments, the second cushion may be omitted.

Further, in some embodiments, the seismic data acquisition unit 10 may also include a first water tight seal 17. The first waterproof sealing structure 17 may be disposed between the upper cover 111 and the lower cover 112. In some embodiments, the first waterproof sealing structure 17 may be a waterproof sealing ring, which may be sleeved on a side of the lower shell 112 opposite to the upper cover 111, and specifically, in some embodiments, the waterproof sealing ring may be a silica gel waterproof ring. It will be appreciated that in other embodiments, the waterproof seal may be omitted.

Further, as shown in fig. 1 and 2, in some embodiments, the seismic data acquisition unit 10 further includes a dust cover assembly 18 and a third waterproof sealing structure 19. The dust cap assembly 18 can be detachably connected to the plug port 112, and can cover the plug port 1112 to prevent dust and moisture from entering the plug port 1112, and prevent pin pins in the plug port 1112 from being oxidized, corroded, and rusted, so as to prevent the plug port 1112 from being in poor contact. The dust cap assembly 18 can be threaded into the plug port 112, which can be threadably engaged with the plug port 1112. The third waterproof sealing structure 19 can be disposed between the dust cover assembly 18 and the insertion port 1112, and can be used to seal the connection between the dust cover assembly 18 and the insertion port 1112. In some embodiments, the third waterproof sealing structure 19 may be a sealing rubber ring, which is sleeved on the dust cover assembly 18.

In some embodiments, the dust cap assembly may include a cap 181 and a silicone seat 182. The cover 181 may be cylindrical, and may have a hollow structure inside, and may include an insertion portion connected to the insertion port 1112 and an operation portion disposed at one end of the insertion portion. The outer diameter of the control part can be larger than that of the insertion part. The outer side wall of the insertion part is provided with an external thread screwed with the internal thread on the inner side of the insertion port 1112. The silicone seat 182 can be disposed to extend into the cover 181 and can be detachably connected to the cover 181. The cross section of the silicone seat 182 may be cylindrical, and the cross section size thereof may be smaller than that of the cover 181. The silicone seat 182 may be provided with a plurality of insertion holes 1821 for inserting the pin 1113 in the insertion port 1112 into the fixed insertion holes 1821, and the insertion holes 1821 are disposed corresponding to the pin 1113, so as to protect the pin 1113, prevent the pin 1113 from being directly exposed to the air, and reduce the chance of corrosion and oxidation of the pin 1113. This jack 1821 can be the round hole, screw up the in-process of lid 181, this pin contact pin 1113 can insert in this jack 1821, thereby it rotates and rotatory to prevent that silica gel seat 182 follows lid 181, lid 181 compresses tightly silica gel seat 182 forward, conducting strip 183 in silica gel seat 182 can not follow lid 181 rotatoryly yet, thereby avoid taking place the friction with pin contact pin 1113 of conducting strip 183 contact, lead to pin contact pin 1113 wearing and tearing, lead to the electrical contact of contact pin and conducting strip bad, the influence prevents staying the reliability that detects. In some embodiments, the anti-collision component can be inserted into the silica gel base 82 along with the pin 1113, specifically, an annular slot is formed in the silica gel base 82, the slot is located at the periphery of the conductive sheet 183, and the anti-collision component is assembled with the silica gel base 82, so that the pin 1113 contacting the conductive sheet 183 can be prevented from being rubbed, the pin 1113 is abraded, the pin and the conductive sheet are in poor electrical contact, and the fool-proof detection reliability is affected.

In some embodiments, a fool-proof structure may be disposed between the dust cover assembly 18 and the plug port 1112. Specifically, the fool-proof structure may be disposed in the cover 181. In some embodiments, the fool-proofing structure may comprise conductive tab 183. The conductive sheet 183 may be a metallic conductive sheet. Alternatively, the conductive sheet 183 may be a stainless steel conductive sheet. The conducting strip 183 may be disposed in the silicone seat 182, and two ends of the conducting strip may extend to the two adjacent insertion holes respectively, for being located at a channel communicating the two adjacent insertion holes. The conductive sheet 183 can short-circuit at least two pin 1113, specifically, four pin 1113, on the plug port 1112 when the dust cap assembly 18 and the plug port 1112 are mounted in place.

Further, as shown in fig. 3, in some embodiments, the seismic data acquisition unit 10 further comprises a detection circuit and a first prompting device. The detection circuit and the first prompting device may be disposed on the seismic data acquisition circuit board 13. The detection circuit can be used to detect whether the dust-proof assembly 18 is in place with the docking port 1112. The first prompting device can be connected to the detection circuit and can send a prompt signal when the dust cover assembly 18 is not in place.

In some embodiments, the detection circuit may include a detection chip and a switch. The detection chip can comprise a detection input pin IN and a detection output pin OUT; the detection input pin IN and the detection output pin OUT may be connected to at least two pin 1113 of the plurality of pin 1113, and specifically, the detection input pin IN and the detection output pin OUT may be two, respectively, and may be disposed corresponding to the four pin 1113. One end of the detection input pin IN can be connected with a pull-up resistor inside the detection chip, the other end of the detection input pin IN can be arranged IN a hanging manner, and one end of the detection output pin OUT can be arranged IN a hanging manner. The other end of the pull-up resistor can be connected with a power supply. The detection chip may be an STM32Fxxx chip, which can detect the signal of the detection input pin IN at regular time, specifically, detect the logic level of the detection input pin IN, and when detecting, detect that the detection output pin OUT is at a low level. The switch can be a double-linkage switch or a four-linkage switch, can be arranged between four pin 1113 and the detection chip IN the pin 1113, and can connect or disconnect the detection input pin IN and the detection output pin OUT with the pin 1113 according to the control of the detection chip. When the dust cap assembly 18 is mounted on the socket port 1112, the switch can execute the control command of the detection chip to connect the detection input pin IN and the detection output pin OUT with the four pin 1113. It is understood that in other embodiments, the conductive strip 183 is not limited to the four pin 1113, and may also short two or more pins.

When the dust cap assembly 18 is not mounted IN place, the detection input pin IN is floating, and the detection chip detects that the signal of the detection input pin IN is at a high level, i.e., the logic level of the detection input pin IN is at a high level. When the signal of the detection input pin IN detected by the detection chip is at a high level, it may be determined that the dust cap assembly 18 is not installed IN place, that is, the dust cap assembly 18 is not screwed down, and at this time, the seismic data acquisition unit 10 cannot perform data acquisition, and a warning signal may be sent by the first warning device to remind an operator to screw down the dust cap assembly 18. When the dust cap assembly 18 is installed IN place, at least two pin 1113 inside the anti-collision assembly 1114 are connected to the conductive sheet 183, so that the detection input pin IN and the detection output pin OUT are short-circuited, the detection output pin OUT outputs a low level at regular time, a signal of the detection input pin IN is an output signal of the detection output pin OUT, the detection chip detects that a signal of the detection input pin IN is a low level, that is, a logic level of the detection input pin IN is low, when the detection chip detects that a signal of the detection input pin IN is a low level, it can be determined that the dust cap assembly 18 is installed IN place, that is, the dust cap assembly 18 is screwed to the socket port 1112, and at this time, the seismic data acquisition unit 10 can enter a data acquisition state. When the dust cap assembly 18 is installed in place, and the four pin contact pins 1113 on the inner side of the anti-collision assembly 1114 are all short-circuited, the dust cap assembly 18 is normally screwed in place, if the dust cap assembly 18 is screwed down, only two pins are short-circuited, which indicates that the dust cap assembly 18 is screwed down (possibly, the threads on the dust cap assembly 18 or on the inner wall of the insertion port 1112 are worn after long-term use, and the dust cap assembly 18 can be screwed in when being tilted), and data acquisition can also be omitted.

In some embodiments, the first prompting device may be an LED indicator, which may be connected to the detection chip, and may emit a prompting indication by flashing when the dust cover assembly 18 is not mounted in place. It will be appreciated that in some embodiments the detection circuit and the first prompting means may be omitted.

Further, as shown in fig. 4, in some embodiments, the seismic data acquisition unit 10 may further include a leakage detection circuit and a second prompting device. The leakage detection circuit may be disposed on the seismic data acquisition circuit board 13, and may be used to detect whether the detector leaks electricity. The second prompting device can send out a prompting signal when the detector leaks electricity. The aluminum shell is adopted through the lower cover, so that lightning high voltage generated when lightning strikes can be conducted to the ground in the case of meeting lightning weather in the field, and the condition that the lightning high voltage of the detector strikes the lightning enters the seismic data acquisition unit 10 through the connecting device 20 to damage the seismic data acquisition circuit board 13 is avoided.

In some embodiments, the leakage detection circuit may include a leakage detection chip, a data collection module, a first connection wire, a second connection wire, a first switch K1, a second switch K3, a third switch K2, a fourth switch K4, a test line, a resistor R, a fifth switch K5, and a ground line. The leakage detection chip may be an STM32F4xx chip, which may be used to process data. This data acquisition module can be connected for ADC data acquisition module with this electric leakage detection chip, specifically, it can include ADS12xx singlechip, and the seismic signal that the wave detector was gathered is sent this ADC data acquisition module shell and is amplified, the ADC transform by this ADS12xx singlechip, sends STM32F4xx chip to handle again. The first and second connecting wires may be connected to the data acquisition module and the detector, and in particular, the first and second connecting wires may be connected to the socket assembly 1111 and to the detector through the connecting device 20. The first switch K1 and the second switch K3 can be disposed on the first connecting wire, and they can be disposed side by side, and the first switch K1 is located at a side close to the detector. The third switch K2 and the fourth switch K4 may be disposed on the second connecting wire and disposed side by side, and the third switch K2 is located at a side close to the detector. The test line is connected to the first connecting wire, the connection node is located between the first switch K1 and the second switch K3, the resistor R can be disposed on the test line, and the fifth switch K5 can be disposed on the test line and located between the resistor R and the first switch K1. The ground line may be connected to the fourth switch K4.

When seismic data are collected, the first switch K1, the second switch K3 and the third switch K2 can be closed, the fourth switch K4 is connected to the detector and disconnected with the shell, the fifth switch K5 is disconnected, seismic signals collected by the detector are sent to the ADC data collection module shell, amplified and ADC converted by the ADS12xx single chip microcomputer, and then sent to the STM32F4xx chip for processing.

When the outdoor detector needs to be subjected to leakage detection in field arrangement, the first switch K1 and the second switch K3 can be closed, the third switch K2 is disconnected, one end of the detector is opened, the fourth switch K4 is connected to the shell ground, the second connecting lead is disconnected with the detector, the fifth switch K5 is closed, the direct-current power supply voltage V + on the test line is applied to the other end of the detector through the resistor R, the fifth switch K5 and the first switch K1, when the detector is well insulated, the detector does not leak electricity, the voltage drop of the resistor R is zero, and the data acquisition module of the data acquisition unit detects that the voltage at the switch K3 is equal to the test direct-current power supply voltage V + of the test line. When the detector leaks electricity, current is output from a direct current power supply and flows through the resistor R, the switches K5 and K1 to the detector, the insulation resistance R of the detector is reduced or the insulation resistance R of the detector is reduced due to the fact that water enters the plug-in component 1111 of the detector, the leaked current enters the ground through the leakage position of the detector and flows into the switch K4 through the lower shell 112 of the seismic data acquisition unit 10 to form a loop, and therefore the resistor R generates voltage drop, the data acquisition module detects that the voltage at the position of the switch K3 is smaller than the voltage V + of the test direct current power supply of the test line, at the moment, the leakage of the external detector can influence the normal seismic data acquisition of the seismic data acquisition unit 10, and then the second prompting device can send out.

In some embodiments, the second prompting device may be an LED indicator light, which may be connected to the leakage detection chip of the leakage detection circuit, and may emit a prompting signal by flashing when the detector leaks electricity. In some embodiments, the second prompting device and the first prompting device can be the same. In some embodiments, the second prompting device may be omitted.

Further, in some embodiments, the seismic data acquisition unit 10 may also include a transmission unit. The transmission unit may be disposed on the seismic data acquisition circuit board 13, which may transmit monitoring information for monitoring the seismic data acquisition unit 10. In some embodiments, the transmission unit may be a bluetooth or LED indicator, and the seismic data acquisition unit 10 may transmit the acquired data quality monitoring information in a bluetooth iBeacon broadcasting manner or a bluetooth transparent transmission manner, or transmit the acquired data quality monitoring information in different colors and different flashing manners of the LED indicator.

As further shown in fig. 1, the connecting device 20 may include a cable body 21, a connector assembly 22, a connector assembly 23, and a shield assembly 24. Both ends of the cable body 21 can be detached and arranged, and once the cable body 21 is damaged, a new cable can be directly detached and replaced, so that the maintenance time can be saved, and the field working efficiency can be improved. The plug assembly 22 is detachably disposed at one end of the circuit body 21 and connected to the seismic data acquisition unit 10, and specifically, it can be plugged into the socket assembly 1111 of the seismic data acquisition unit 10. The connector assembly 23 is detachably disposed at the other end of the cable body 21, and can be detachably connected to an external detector. The protection component 24 can be sleeved on the cable body 21 and can be used for increasing the bending radius of the cable body 21 and protecting the cable body 21, so that the service life of the cable body 21 is prolonged, the rolling resistance is improved, and cable breakage caused by bite of small animals such as mice is prevented.

Further, in some embodiments, the plug assembly 22 may include a plug 221 and a first connector 222, the plug 221 may be connected to the socket assembly 1111 of the seismic data acquisition unit 10, and the first connector 222 may be disposed at a side of the plug 221, which may be used to connect to the cable body 21. The plug 221 may include a mount 2211, and a plug 2212. The mounting block 2211 allows the plug 2212 to be mounted and partially inserted into the receptacle assembly 1111. The plug 2212 may protrude from an end face of one end of the mounting block 2211, and may be used to connect with the seismic data acquisition unit 10, and in particular, may be plugged into a jack in the receptacle assembly 1111. The plug 221 may be secured to the receptacle assembly 1111 by the provision of fasteners 25. The mounting seat 2211 may be provided with a mounting through hole 2213, and the fastener may be a fastening screw, which may penetrate through the mounting through hole 2213 of the mounting seat 2211 to be connected and fixed to the socket assembly 1111.

Further, in some embodiments, the joint assembly 23 may include a joint 231 and a second connector 232. In some embodiments, the connector 231 may be a threaded connector that may be threadably engaged with an external geophone. The second connecting member 232 can be disposed at one end of the joint 231, which can be used to connect the circuit body 21.

Further, in some embodiments, the shield assembly 24 may include a plurality of grommet rings. The plurality of the grommet rings can be sleeved on the cable body 21 and arranged at equal intervals, the bending radius of the cable body 21 when being bent can be increased, the tensile strength of the bending of the cable body 21 to metal wires in the cable is reduced, the service life is prolonged, and the bending life of the cable body 21 after the grommet rings is increased to more than 3000 times. The addition of the protective ring can also improve the rolling resistance and prevent the cable from being broken due to the bite of small animals such as mice and the like. In some embodiments, the grommet may be a rubber grommet. It will be appreciated that in other embodiments, the grommet may not be limited to a rubber grommet, which may be a silicone grommet or a plastic grommet.

It is to be understood that the foregoing examples merely represent preferred embodiments of the present invention, and that the description thereof is more specific and detailed, but not intended to limit the scope of the invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims (10)

1. A seismic data acquisition unit is detachably connected with an external detector through a connecting device and is characterized by comprising a shell, a power supply assembly (12) arranged in the shell, and a seismic data acquisition circuit board (13) which is arranged in the shell, connected with the power supply assembly (12) and connected with the external detector.

2. Seismic data acquisition unit according to claim 1, wherein the housing is provided with a socket assembly (1111) connected to the seismic data acquisition circuit board (13) and detachably connectable to a plug assembly (22) of the connection device (20);

the shell is also provided with an external inserting port (1112) detachably connected with the downloading rack; the plug-in port (1112) comprises a plurality of pin-out pins (1113) connected with the seismic data acquisition circuit board (13);

the seismic data acquisition unit further comprises a dust cover assembly (18) detachably arranged on the plug port (1112).

3. The seismic data acquisition unit of claim 2, further comprising a first water-tight seal (17), the housing comprising an upper cover (111) and a lower shell (112) cooperating with the upper cover (111); the first waterproof sealing structure (17) is arranged between the upper cover (111) and the lower shell (112);

and/or the seismic data acquisition unit further comprises a second waterproof sealing structure arranged in the plugging port (1112);

and/or the seismic data acquisition unit further comprises a third waterproof sealing structure (19) arranged between the dust cover assembly (18) and the plug port (1112);

and/or the seismic data acquisition unit further comprises a mounting bracket (14) arranged in the shell for mounting the power supply assembly (12);

and/or further comprising a first shock pad (15) positioned between the seismic data acquisition circuit board (13) and the bottom surface of the upper cover (111);

and/or the seismic data acquisition unit comprises a second shock pad located between the power supply assembly (12) and the lower shell (112);

and/or the seismic data acquisition unit comprises a switch for switching the power supply assembly (12) on or off.

4. The seismic data acquisition unit of claim 3, wherein the lower shell (112) is an aluminum shell;

and/or the seismic data acquisition circuit board (13) is in conductive connection with the plug port (1112) through a flexible line circuit board (16);

and/or a foolproof structure is arranged between the dustproof cover assembly (18) and the plug port (1112); the dust cover assembly (18) comprises a cover body (181); the fool-proof structure comprises a conducting strip (183) which is arranged in the cover body (181) and used for short-circuiting at least two pin-out pins (1113) on the plug-in port (1112) when the dustproof cover assembly (18) and the plug-in port (1112) are installed in place;

and/or the seismic data acquisition unit comprises a detection circuit for detecting whether the dust cover assembly (18) is installed in place with the plug port (1112) and a first prompting device connected with the detection circuit and used for sending a prompting signal when the dust cover assembly (18) is not installed in place;

and/or the seismic data acquisition unit comprises a leakage detection circuit for detecting whether the detector leaks electricity and a second prompting device which is connected with the leakage detection circuit and used for sending a prompting signal when the detector leaks electricity;

and/or a transmission unit for transmitting and monitoring information of the seismic data acquisition unit is arranged on the seismic data acquisition circuit board (13).

5. The seismic data acquisition unit according to claim 4, wherein the detection circuit comprises a detection chip and a switch, the detection chip comprises a detection input pin IN and a detection output pin OUT which are connected with at least two pin-OUT pins (1113) of the pin-OUT pins (1113), and the switch is arranged between the detection chip and the pin-OUT pins (1113) and connects or disconnects the detection input pin IN and the pin-OUT with the pin-OUT pins (1113) according to the control of the detection chip;

when the dustproof cover assembly (18) is not installed IN place, the detection chip detects that a signal of the detection input pin IN is high level;

when the dustproof cover assembly (18) is installed IN place, at least two pin (1113) of the pin leading-out pins are IN short circuit, and the detection chip detects that a signal of the detection input pin IN is at a low level;

the electric leakage detection circuit comprises an electric leakage detection chip, a data acquisition module connected with the electric leakage detection chip, a first connecting wire connected with the data acquisition module and the detector, a second connecting wire connected with the data acquisition module and the detector, a first switch and a second switch which are arranged on the first connecting wire side by side, a third switch and a fourth switch which are arranged on the second connecting wire side by side, a test wire connected with the first connecting wire and positioned between the first switch and the second switch, a resistor arranged on the test wire, a fifth switch arranged on the test wire and positioned between the resistor and the first switch, and a ground wire connected with the fourth switch;

the detector does not leak electricity, the resistance voltage drop is zero, and the voltage detected by the data acquisition module is equal to the test direct-current power supply voltage of the test line;

the detector leaks electricity, the resistor generates voltage drop, and the voltage detected by the data acquisition module is smaller than the test direct-current power supply voltage of the test wire.

6. The seismic data acquisition unit of claim 4, wherein the dust cap assembly (18) further comprises a silicone seat (182) removably extending into the cover (181) for assembly with the cover (181);

the silica gel base (182) is provided with an insertion hole (1821) for the pin (1113) to correspondingly insert and preventing the cover body from rotating to drive the silica gel base (182) to rotate;

a peripheral anti-collision assembly (1114) surrounding at least part of the pin (1113) is arranged in the insertion port (1112); the anti-collision assembly (1114) comprises a plurality of anti-collision ribs which surround at least part of the periphery of the pin-out pins (1113) and are annular and are convexly arranged on the inner side wall of the anti-collision outer ring.

7. The connecting device for the seismic data acquisition unit and the geophone is characterized by comprising a cable body (21), a plug assembly (22) detachably arranged at one end of the cable body (21) and connected with the seismic data acquisition unit (10), a connector assembly (23) detachably arranged at the other end of the cable body (21) and connected with an external geophone, and a protection assembly (24) sleeved on the cable body (21) and used for increasing the bending radius of the cable body (21) and protecting the cable body (21).

8. The device for connecting the seismic data acquisition unit and the geophone according to claim 7, wherein the protection component (24) comprises a plurality of annular protecting wire rings which are sleeved on the cable body (21) and are equidistantly arranged; the wire protecting ring is a rubber wire protecting ring, a silica gel wire protecting ring or a plastic wire protecting ring;

and/or the plug assembly (22) comprises a plug (221) connected with the socket assembly (1111) of the seismic data acquisition unit (10);

and/or the joint component (23) comprises a joint (231) detachably connected with the geophone.

9. The seismic data acquisition unit and geophone connection apparatus according to claim 8, wherein said plug (221) comprises a mounting base (2211), a plug (2212) provided to protrude from an end face of one end of said mounting base (2211) to connect with said seismic data acquisition unit (10);

and/or, the joint (231) is a threaded joint;

the seismic data acquisition unit also comprises a fastener (25) which penetrates out of the mounting seat (2211) and is fixedly connected with the socket assembly (1111) of the seismic data acquisition unit (10).

10. A seismic data acquisition station comprising a seismic data acquisition unit (10) according to any of claims 1 to 6 and a connection device (20) for a seismic data acquisition unit (10) according to any of claims 7 to 9 to a geophone.

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