CN106772560A - The node type seismic prospecting instrument and control method of real-time monitoring wave detector state - Google Patents

The node type seismic prospecting instrument and control method of real-time monitoring wave detector state Download PDF

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Publication number
CN106772560A
CN106772560A CN201611270239.6A CN201611270239A CN106772560A CN 106772560 A CN106772560 A CN 106772560A CN 201611270239 A CN201611270239 A CN 201611270239A CN 106772560 A CN106772560 A CN 106772560A
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CN
China
Prior art keywords
wave detector
main control
voltage
control chip
state
Prior art date
Application number
CN201611270239.6A
Other languages
Chinese (zh)
Inventor
俞小露
杨阳
唐学峰
胡鑫
陈静
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合肥国为电子有限公司
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Application filed by 合肥国为电子有限公司 filed Critical 合肥国为电子有限公司
Priority to CN201611270239.6A priority Critical patent/CN106772560A/en
Publication of CN106772560A publication Critical patent/CN106772560A/en

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS
    • G01V1/00Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/16Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
    • G01V1/18Receiving elements, e.g. seismometer, geophone or torque detectors, for localised single point measurements
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS
    • G01V1/00Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/16Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
    • G01V1/18Receiving elements, e.g. seismometer, geophone or torque detectors, for localised single point measurements
    • G01V1/181Geophones
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS
    • G01V13/00Manufacturing, calibrating, cleaning, or repairing instruments or devices covered by the preceding groups

Abstract

The invention discloses a kind of node type seismic prospecting instrument of real-time monitoring wave detector state, instrument includes main control chip, at least one wave detector voltage collection circuit and indicator lamp, and the Enable Pin of main control chip is connected with wave detector voltage collection circuit carries out the connection of two-way communication, output end and wave detector status indicator lamp.Method includes that main control chip output enables signal control wave detector voltage collection circuit and starts to gather the voltage at wave detector two ends;Main control chip judges the state of wave detector according to the voltage at wave detector two ends;Main control chip controls indicator lamp to show to indicate wave detector state according to the state of wave detector.By setting wave detector voltage collection circuit, main control chip output enables signal control wave detector voltage collection circuit and the information of voltage of wave detector is acquired, the different states that can judge wave detector incoming end of the main control chip according to wave detector both end voltage, whole process is simple, efficiency high and intelligent level is higher.

Description

The node type seismic prospecting instrument and control method of real-time monitoring wave detector state

Technical field

The present invention relates to seismic exploration technique field, more particularly to a kind of node type earthquake of real-time monitoring wave detector state Prospecting instrument and control method.

Background technology

At present, in seismic survey system, wave detector is the important component of seismic survey system, and its effect is detection Vibration signal, and vibration signal is converted to electric signal.During the use of seismic survey system, whether detector device Normal access system, has important influence to the quality of seismic exploration.Cause wave detector short circuit or open circuit connection abnormal The reason for include wave detector and cable connector are not seated, cable short circuit or open circuit, wave detector are damaged etc..Accordingly, it would be desirable to right The working condition of wave detector is tested.

Whether existing node type seismic prospecting instrument is unable to the data of real-time monitoring collection, if just to test wave detector Often work, it is necessary to first collection seismic prospecting instrument in data, the data of collection are then transferred to computer, finally, Yong Hutong Cross the observation software of client whether normal to judge the connection status of wave detector.

The method of existing this observation wave detector connection status has more obvious defect:One is, it is necessary to by visitor Family end judges the working condition of wave detector, and intelligent level is relatively low.Two are, existing node type seismic prospecting instrument is examined The deterministic process for surveying device state is complicated, wastes time and energy, less efficient.

The content of the invention

Node type seismic prospecting instrument and control it is an object of the invention to provide a kind of real-time monitoring wave detector state Method is low to solve the problems, such as existing judgement wave detector working condition efficiency.

To realize object above, the technical solution adopted by the present invention is:A kind of first aspect, there is provided real-time monitoring wave detector The node type seismic prospecting instrument of state, the instrument includes main control chip, at least one wave detector voltage collection circuit and instruction Lamp, main control chip is connected with wave detector voltage collection circuit carries out two-way communication and wave detector status indicator lamp is connected and carries out list To communication.

A kind of second aspect, there is provided controlling party of the node type seismic prospecting instrument of above-mentioned real-time monitoring wave detector state Method, the method includes:

Main control chip output enables signal control wave detector voltage collection circuit and starts to gather the voltage at wave detector two ends;

Main control chip judges the state of wave detector according to the voltage at wave detector two ends;

Main control chip controls indicator lamp to show to indicate wave detector state according to the state of wave detector.

Compared with prior art, there is following technique effect in the present invention:The present invention is by setting wave detector voltage acquisition electricity Road, main control chip output enables signal control wave detector voltage collection circuit and the information of voltage of wave detector is acquired, and will The wave detector information of voltage for collecting is transmitted to main control chip, and main control chip is that can determine whether according to the difference of wave detector both end voltage Go out the state of wave detector incoming end, whole process is simple, efficiency high and intelligent level is higher.

Brief description of the drawings

Fig. 1 is the knot of the node type seismic prospecting instrument of the first real-time monitoring wave detector state in one embodiment of the invention Structure schematic diagram;

Fig. 2 is second knot of the node type seismic prospecting instrument of real-time monitoring wave detector state in one embodiment of the invention Structure schematic diagram;

Fig. 3 is the knot of the node type seismic prospecting instrument of the third real-time monitoring wave detector state in one embodiment of the invention Structure schematic diagram;

Fig. 4 is the schematic flow sheet being monitored to wave detector state in one embodiment of the invention;

The control method of the node type seismic prospecting instrument of the real-time monitoring wave detector state in Fig. 5 one embodiment of the invention Schematic flow sheet.

Specific embodiment

With reference to shown in Fig. 1 to Fig. 5, the present invention is described in further detail.

As shown in figure 1, present embodiment discloses a kind of node type seismic prospecting instrument of real-time monitoring wave detector state, bag Main control chip 10, at least one wave detector voltage collection circuit 20 and indicator lamp 30 are included, main control chip 10 is adopted with wave detector voltage The connection of collector 20 carries out two-way communication and the indicator lamp 30 of wave detector state is connected.

Specifically, the port of main control chip 10 can be set as various functions in the present embodiment, with undertake Enable Pin with Output end function.The port that wherein main control chip 10 is connected with wave detector voltage collection circuit 20 is with the work for being enable port There is the function of output end with the port connected with indicator lamp 30.

It should be noted that the number phase of the quantity of the indicator lamp 30 of the wave detector state and wave detector voltage detecting circuit Together, and be reddish yellow bi-colour light, when the incoming end of wave detector is normally accessed, indicator lamp does not light.When the incoming end of wave detector is During open-circuit condition, indicator lamp glows.When wave detector incoming end is short-circuit condition, indicator lamp Yellow light-emitting low temperature.

Specifically, wave detector voltage collection circuit 20 includes A/D conversion chips 21, current source 22, the and of current supply switch 23 First, second pull down resistor 24,25;

Main control chip 10 is connected with A/D conversion chips 21 and carries out two-way communication;

The analog signal output of wave detector interface is connected by holding wire with the input of A/D conversion chips 21, detection The analog signal output of device interface is also connected by current supply switch 23 with current source 22;

The analog signal output of wave detector interface is grounded after being connected with first, second pull down resistor 24,25 respectively.

It should be noted that the output of main control chip 10 enables signal control electric current source switch 23 close, make current source 22 with Wave detector interface is connected, and the electric current that certain value is just had in wave detector flows through, and the state of wave detector incoming end is different, wave detector The voltage at two ends is different.Main control chip 10 can send and enable the voltage that signal control A/D conversion chips 21 gather wave detector two ends, The magnitude of voltage that main control chip 10 is collected according to A/D conversion chips 21, judges the state of wave detector incoming end.

According to wave detector both end voltage value judge that the concrete principle of the state of wave detector incoming end is as follows:

When wave detector is normally accessed, if current supply switch 23 is closed, the electric current of current source 22 can be through wave detector interface After by wave detector and first, second pull down resistor 24,25, then flow to ground.It is assumed here that first, second pull down resistor 24th, 25 resistance value is R0, the value of wave detector DC internal resistance is R1, the current value of current source 22 is i0, when the input of wave detector During normal access circuit, the magnitude of voltage at wave detector two ends is approximatelyWhen the input due to wave detector does not have There is access circuit or wave detector to come off or when the reason such as cable breakage causes wave detector incoming end to open a way, it is believed that wave detector it is straight Leakage resistance R1It is infinity, now, the magnitude of voltage at wave detector two ends is similar to U=i0×R0.When due to wave detector interface short circuit or When the wave detector that the reasons such as wave detector itself short circuit are caused accesses terminal shortcircuit, it is believed that the magnitude of voltage at wave detector two ends is similar to 0. Therefore, main control chip 10 can judge the state of wave detector incoming end according to the magnitude of voltage at wave detector two ends.In the present embodiment Only connected by simple circuit, you can accurately judge the state of wave detector incoming end, the efficiency high and intelligence of judgement Change level is higher.

Specifically, as shown in Fig. 2 the node type seismic prospecting instrument in the present embodiment also includes being connected with main control chip 10 Memory module 40.40 USB flash disks of the memory module, the memory module 40 can be with several days of memory node formula seismic prospecting instrument even Tens days data of collection.Here the port that main control chip 10 is connected with memory module 40 has the function of output end.

Specifically, main control chip 10 is fpga chip.

Below so that above-mentioned node type seismic prospecting instrument includes 3 wave detector voltage collection circuits 20 as an example, to this implementation Disclosed scheme is illustrated:

As shown in figure 3, above-mentioned node type seismic prospecting instrument includes following structure:10,3 wave detectors of master control fpga chip Voltage collection circuit 20, the input of each wave detector voltage collection circuit 20 is connected with external wave detector 51,52,53 respectively. Wherein, the sample range of A/D conversion chips 21 is+2.5V~-2.5V.Three current sources 21 are according to pull down resistor value and wave detector DC internal resistance value and A/D data conversion chips sample range are selected, and 100uA is taken here;The resistance of pull down resistor is 20K ohm, Drop-down ground connection.

Wave detector status monitoring flow is as shown in Figure 4:Using the counter wave detector state of monitoring in every 3 minutes, node After formula seismic prospecting instrument starts, main control chip 10 judges counter, and whether timing was by 3 minutes, if it is not, then counter is from after adding Continue to judge, if by 3 minutes, closed path source switch 23, after waiting certain hour, it is determined that enable A/D after switch closure turning Change chip 21 and gather 4 secondary datas, the stand-by period mentioned here is different according to selected switch difference, when being waited in the present embodiment Between be 10ms.After having gathered 4 secondary datas, switch is disconnected, counter resets again.4 secondary datas that each wave detector is collected, point It is secondary to be judged, finally obtain 4 wave detector states, if it is determined that wave detector for a certain state reach 2 times and more than, then finally recognize Determine wave detector and be in the state, and control wave detector status indicator lamp 30 to send out, while status information is write into memory module 40.

Wave detector DC internal resistance in the present embodiment is 1K ohm, in known pull down resistor resistance and current source values, according to FormulaFinally A/D conversion chips collect magnitude of voltage i.e. wave detector two ends electricity under the various states of wave detector Pressure:

(1) when wave detector normally accesses circuit, wave detector both end voltage U=48mV;

(2) when wave detector incoming end open circuit, wave detector both end voltage U=2V;

(3) when wave detector accesses terminal shortcircuit, wave detector both end voltage U=0V.

Set environment noise is less than 100uV in the present embodiment, it is contemplated that the fluctuation of each device resistance and current source current value, Setting judges wave detector open circuit when the magnitude of voltage for collecting is more than 1V;When the magnitude of voltage for collecting is less than 5mV, wave detector is judged Short circuit;When the magnitude of voltage for collecting is between 5mV~1V, judge that wave detector is normally accessed.

As shown in figure 5, present embodiment discloses a kind of node type seismic prospecting instrument of real-time monitoring wave detector state Control method, the method comprises the following steps S1 to S3:

S1, the output of main control chip 10 enable signal control wave detector voltage collection circuit 20 and start to gather wave detector two ends Voltage;

S2, main control chip 10 judge the state of wave detector according to the voltage at wave detector two ends;

S3, main control chip 10 control indicator lamp to show to indicate wave detector state according to the state of wave detector.

Specifically, step S1 comprises the following steps:

The output of main control chip 10 enables signal control electric current source switch 23 and closes, and control electric current source 22 connects with wave detector interface Connect, make current flow through wave detector;

Main control chip 10 gathers the voltage at wave detector two ends by A/D conversion chips 21.

Specifically, step S2 comprises the following steps:

If the magnitude of voltage at wave detector two ends isThen judge that the incoming end of wave detector accesses shape as normal State;

If the magnitude of voltage at wave detector two ends is U=i0×R0, then the incoming end for judging wave detector is open-circuit condition;

If the magnitude of voltage at detector two ends is 0, the incoming end for judging wave detector is short-circuit condition.

Claims (8)

1. a kind of node type seismic prospecting instrument of real-time monitoring wave detector state, it is characterised in that including main control chip (10), At least one wave detector voltage collection circuit (20) and indicator lamp (30), main control chip (10) and wave detector voltage collection circuit (20) connection carries out two-way communication and indicator lamp (30) connection of display wave detector state and carries out one-way communication.
2. the node type seismic prospecting instrument of real-time monitoring wave detector state as claimed in claim 1, it is characterised in that described Wave detector voltage collection circuit (20) including A/D conversion chips (21), current source (22), current supply switch (23) and first, Second pull down resistor (24,25);
Main control chip (10) is connected with A/D conversion chips (21) and carries out two-way communication;
The analog signal output of wave detector interface is connected by holding wire with the input of A/D conversion chips (21), wave detector The analog signal output of interface is also connected by current supply switch (23) with current source (22);
The analog signal output of wave detector interface is grounded after being connected with first, second pull down resistor (24,25) respectively.
3. the node type seismic prospecting instrument of real-time monitoring wave detector state as claimed in claim 1, it is characterised in that also wrap Include the memory module (40) being connected with main control chip (10).
4. the node type seismic prospecting instrument of real-time monitoring wave detector state as claimed in claim 2, its feature exists, described Main control chip (10) is fpga chip.
5. the node type seismic prospecting instrument of real-time monitoring wave detector state as claimed in claim 3, it is characterised in that described Memory module (40) be USB flash disk.
6. the controlling party of the node type seismic prospecting instrument of the real-time monitoring wave detector state as described in claim any one of 1-5 Method, it is characterised in that including:
S1, main control chip (10) output enable signal and control wave detector voltage collection circuit (20) to start to gather wave detector two ends Voltage;
S2, main control chip (10) judge the state of wave detector according to the voltage at wave detector two ends;
S3, main control chip (10) control indicator lamp to show to indicate wave detector state according to the state of wave detector.
7. control method as claimed in claim 6, it is characterised in that described step S1 includes:
Main control chip (10) output enables signal control electric current source switch (23) closure, control electric current source (22) and wave detector interface Connection, makes current flow through wave detector;
Main control chip (10) gathers the voltage at wave detector two ends by A/D conversion chips (21).
8. method as claimed in claim 7, it is characterised in that described step S2 includes:
If the magnitude of voltage at wave detector two ends isThen judge that the incoming end of wave detector is normal access state;
If the magnitude of voltage at wave detector two ends is U=i0×R0, then the incoming end for judging wave detector is open-circuit condition;
If the magnitude of voltage at detector two ends is 0, the incoming end for judging wave detector is short-circuit condition,
Wherein, i0It is the current value of current source (22), R0It is the resistance value of first, second pull down resistor (24,25), R1It is detection Device DC resistance.
CN201611270239.6A 2016-12-30 2016-12-30 The node type seismic prospecting instrument and control method of real-time monitoring wave detector state CN106772560A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109471202A (en) * 2018-09-21 2019-03-15 西安陆海地球物理科技有限公司 A kind of method of wave detector working condition real-time detection

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5757720A (en) * 1996-01-23 1998-05-26 Compagnie General De Geophysique Processing method for calibrating a hydrophone-geophone sensor pair, and a seismic prospecting method implementing the processing
JP2005227105A (en) * 2004-02-12 2005-08-25 Tokai Rika Co Ltd Seismometer
CN101561509A (en) * 2008-04-18 2009-10-21 中国石油化工股份有限公司 Tri-component digital geophone and acquisition method thereof
CN204595228U (en) * 2015-04-09 2015-08-26 北京中矿大地地球探测工程技术有限公司 Distributed seam seismic exploration system
CN205427209U (en) * 2016-03-17 2016-08-03 西安陆洲智能传感技术有限公司 Piezoelectric seismometer tester
CN206331127U (en) * 2016-12-30 2017-07-14 合肥国为电子有限公司 The node type seismic prospecting instrument of wave detector state is monitored in real time

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5757720A (en) * 1996-01-23 1998-05-26 Compagnie General De Geophysique Processing method for calibrating a hydrophone-geophone sensor pair, and a seismic prospecting method implementing the processing
JP2005227105A (en) * 2004-02-12 2005-08-25 Tokai Rika Co Ltd Seismometer
CN101561509A (en) * 2008-04-18 2009-10-21 中国石油化工股份有限公司 Tri-component digital geophone and acquisition method thereof
CN204595228U (en) * 2015-04-09 2015-08-26 北京中矿大地地球探测工程技术有限公司 Distributed seam seismic exploration system
CN205427209U (en) * 2016-03-17 2016-08-03 西安陆洲智能传感技术有限公司 Piezoelectric seismometer tester
CN206331127U (en) * 2016-12-30 2017-07-14 合肥国为电子有限公司 The node type seismic prospecting instrument of wave detector state is monitored in real time

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109471202A (en) * 2018-09-21 2019-03-15 西安陆海地球物理科技有限公司 A kind of method of wave detector working condition real-time detection

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Application publication date: 20170531