CN103983234A - Rock stratum attitude measurement method based on intelligent mobile equipment - Google Patents

Abstract

The invention discloses a rock stratum attitude measurement method based on intelligent mobile equipment. The main operating flow is to tightly attach the back surface of the intelligent mobile equipment to the surface of a rock stratum; a gravity acceleration component value under a mobile equipment coordinate system and an included angle between the Y axis of the mobile equipment coordinate system and the north-pole direction of a geomagnetic field are obtained through an acceleration sensor module and a direction sensor module of the intelligent mobile equipment. Due to the method, the direction, the inclination direction and the inclination angle of the rock stratum can be obtained. The method can be used for measuring the rock stratum attitude and also used for measuring attitudes of a structural surface of a rock body and a side slope surface.

Description

A kind of measuring core occurrence method based on Intelligent mobile equipment

Technical field

The present invention relates to compiling and analytical applications field of geologic information, relate in particular to a kind of method of obtaining and calculating of attitude of rocks parameter.

Background technology

The occurrence of rock stratum be rock stratum in the state of space output and the general name in orientation, occurrence represents with occurrence three elements conventionally, comprises trend, tendency and the inclination angle of rock stratum.The i.e. trend line of this rock stratum of horizontal line on the intersection of rock stratum face and surface level or rock stratum face, the trend that the direction of its two ends indication is rock stratum, can be represented by two position angles that differ 180 °.Capwise line is inclination of strata line along dipping bed towards straight line that draw below, and the aspect vergence direction of the horizontal projection line indication of parallax is exactly the tendency of rock stratum, and trend differs 90 ° with tendency.Angle between the parallax of rock stratum and its horizontal projection line is the inclination angle of rock stratum.

In prior art, generally measure the attitude of rocks with geologic compass.Concrete grammar is as follows:

1. the mensuration of strike

Strike is the namely horizontal bearing of trend on the arbitrary height in rock stratum of direction of level rock and surface level intersection.When measurement, long compass limit and aspect are close to, are then rotated compass, make the bubble of chassis level placed in the middle, read pointer indication scale and be the trend of rock stratum.

2. the mensuration of rock stratum tendency

Rock stratum tendency refers to the projection of rock stratum downward maximum inclination direction line on surface level, permanent vertical with strike.When measurement, by compass the North or connect thing board and point to vergence direction, the compass south nestles up aspect and rotates compass, makes chassis level bubble placed in the middle, reads north arrow indication scale and be the tendency of rock stratum.

3. the mensuration of formation dip

Formation dip is the maximum angle between level rock and imaginary horizontal plane, i.e. main dip, and it is to obtain along the true dip orientation measurement of rock stratum.When measurement, compass is upright, and to grow the true dip line of limit against rock stratum, move left and right compass along aspect, and move the monkey wrench of compass bottom with middle finger, make deviational survey level bubble placed in the middle, read sharp indication full-scale reading in outstanding cone, be the main dip of rock stratum.

In above-mentioned measurement, can find out, the measurement of the attitude of rocks at least needs acquired tendency and inclination angle, at least will carry out at twice, and all will to adjust level bubble placed in the middle at every turn, and this strike-dip survey method is more loaded down with trivial details, work efficiency is also lower.

Summary of the invention

The object of this invention is to provide a kind of new method of measuring the attitude of rocks.

Be such for realizing the technical scheme that the object of the invention adopts, a kind of measuring core occurrence method based on Intelligent mobile equipment, comprises the following steps:

1) Intelligent mobile equipment is attached to the surface of rock stratum to be measured, described Intelligent mobile equipment has acceleration sensor module and direction sensor module;

2), by described acceleration sensor module, record gravitational acceleration component value a under mobile device coordinate system _x, a _yand a _z;

3) make x=a _z, a=g (x, y), calculates the value of A;

Wherein:

4) if A≤90 °, the main dip B=A of rock stratum to be measured; If 90 ° of A >, the main dip B=180 of rock stratum to be measured °-A;

5) order, k=a _x, z=a _y, C=h (k, z), calculates the value of C;

Wherein:

6) if C >=0 makes D=C; If C < 0, makes D=360 °+C;

7) by described direction sensor module record mobile device coordinate system y axle and terrestrial magnetic field direction to the north pole angle (taking mobile phone as example, mobile phone top towards with the angle R of direct north);

8) make E=R-D;

9) if 0≤E≤90 ° make F1=E, F2=E+180 °, G=E+270 °, the trend of rock stratum to be measured is F1 and F2, the tendency of rock stratum to be measured is G;

If 90 ° of <E≤180 °, make F1=E, F2=E+180 °, G=E-90 °, the trend of rock stratum to be measured is F1 and F2, the tendency of rock stratum to be measured is G;

If 180 ° of <E≤360 °, make F1=E-180 °, F2=E, G=E-90 °, the trend of rock stratum to be measured is F1 and F2, the tendency of rock stratum to be measured is G;

If-180 °≤E<0, make F1=E+180 °, F2=E+360 °, G=E+270 °, the trend of rock stratum to be measured is F1 and F2, the tendency of rock stratum to be measured is G;

If-270 °≤E<-180 °, make F1=E+360 °, F2=E+540 °, G=E+270 °, the trend of rock stratum to be measured is F1 and F2, the tendency of rock stratum to be measured is G;

If-360 ° of <E<-270 °, make F1=E+360 °, F2=E+540 °, G=E+630 °, the trend of rock stratum to be measured is F1 and F2, the tendency of rock stratum to be measured is G.

Brief description of the drawings

Fig. 1 is process flow diagram of the present invention;

Fig. 2 is the coordinate schematic diagram of smart mobile phone.

Embodiment

Below in conjunction with drawings and Examples, the invention will be further described, only limits to following embodiment but should not be construed subject area of the present invention.Without departing from the idea case in the present invention described above, according to ordinary skill knowledge and customary means, make various replacements and change, all should be included in protection scope of the present invention.

A measuring core occurrence method based on Intelligent mobile equipment, comprises the following steps:

1) get a representative rock stratum face, rock layer surface is close to in the mobile device back side.Described Intelligent mobile equipment has acceleration sensor module (Accelerometer Sensor) and direction sensor module (Orientation Sensor).In embodiment, described Intelligent mobile equipment is smart mobile phone.

2), by described acceleration sensor module, obtain gravitational acceleration component value a under mobile device coordinate system _x, a _yand a _z.

What deserves to be explained is: the natural system of coordinates of mobile device refers in the time that a mobile device is placed in the direction of its acquiescence, it is right that X-axis is that level is pointed to, and Y-axis is vertically upward, and Z axis is to point to outside screen front, and the screen back side is the negative value of Z.

Be example with mobile phone natural coordinates, X-axis, Y-axis and Z axis be existing clear and definite definition in existing technology, as shown in Figure 2:

The X-axis of described smart mobile phone is parallel to horizontal (Width of mobile phone) of mobile phone screen, and Y-axis is parallel to longitudinal (length direction of mobile phone) of mobile phone screen, and X-axis and Y-axis are all parallel to mobile phone screen, and Z axis is perpendicular to mobile phone screen;

In the time of mobile device motion or rotation, these coordinate axis can not change, and they follow mobile phone, have also just formed mobile device coordinate system.

3) make x=a _z, a=g (x, y), calculates the value of A.

Wherein:

What deserves to be explained is, if x=0, y=0, A=is nonsensical, and in this measuring method, x and y can not be also 0 simultaneously, and x and y are that 0 situation does not exist simultaneously.Even if be 0 simultaneously, just illustrate that this coordinate points is at initial point, just do not have angled concept at initial point so yet, only have the line of non-initial point and initial point just can produce angle with x axle.

4) if A≤90 °, the main dip B=A of rock stratum to be measured.If 90 ° of A >, the main dip B=180 of rock stratum to be measured °-A.What deserves to be explained is, due to perseverance is more than or equal to zero, and therefore A value codomain is at [0 °, 180 °], if A≤90 °, the main dip B=A of rock stratum to be measured.If 90 ° of A >, the main dip B=180 of rock stratum to be measured °-A.The codomain of main dip B is forever between [0 °, 90 °].

5) order, k=a _x, z=a _y, C=h (k, z), calculates the value of C.

Wherein:

What deserves to be explained is, if k=0, z=0, A=is nonsensical, if k and z are 0 simultaneously, illustrates that now residing of mobile phone is a surface level, and surface level is not have trend, tendency and inclination angle, therefore also there is no practical significance.In the time measuring the attitude of rocks, rock stratum all tilts, and all has certain angle with surface level.

6) if C >=0 makes D=C.If C < 0, makes D=360+C.What deserves to be explained is, the codomain of C (180 °, 180 °], if C >=0 makes D=C.If C < 0, makes D=360+C, now, the codomain of D is at [0,360 °].

7) record the angle of mobile device coordinate system y axle and terrestrial magnetic field direction to the north pole by described direction sensor module (Orientation Sensor), taking smart mobile phone as example, mobile phone top towards with the angle R of direct north.

8) make E=R-D.

9) if 0≤E≤90 ° make F1=E, F2=E+180 °, G=E+270 °, the trend of rock stratum to be measured is F1 and F2, the tendency of rock stratum to be measured is G.

If 90 ° of <E≤180 °, make F1=E, F2=E+180 °, G=E-90 °, the trend of rock stratum to be measured is F1 and F2, the tendency of rock stratum to be measured is G.

If 180 ° of <E≤360 °, make F1=E-180 °, F2=E, G=E-90 °, the trend of rock stratum to be measured is F1 and F2, the tendency of rock stratum to be measured is G.

If-180 °≤E<0 °, make F1=E+180, F2=E+360 °, G=E+270 °, the trend of rock stratum to be measured is F1 and F2, the tendency of rock stratum to be measured is G.

If-270 °≤E<-180 °, make F1=E+360 °, F2=E+540 °, G=E+270 °, the trend of rock stratum to be measured is F1 and F2, the tendency of rock stratum to be measured is G.

If-360 ° of <E<-270 °, make F1=E+360 °, F2=E+540 °, G=E+630 °, the trend of rock stratum to be measured is F1 and F2, the tendency of rock stratum to be measured is G.

Claims (1)

1. the measuring core occurrence method based on Intelligent mobile equipment, is characterized in that, comprises the following steps:

1) Intelligent mobile equipment is attached to the surface of rock stratum to be measured, described Intelligent mobile equipment has acceleration sensor module and direction sensor module;

2), by described acceleration sensor module, record gravitational acceleration component value a under mobile device coordinate system _x, a _yand a _z;

3) make x=a _z, a=g (x, y), calculates the value of A;

Wherein:

$g(x,y)=\left\{\begin{array}{cc}\arctan \left(\frac{y}{x}\right)& x>0\\ \arctan \left(\frac{y}{x}\right)+\mathrm{\&pi;}& y\&GreaterEqual;0,x<0\\ \arctan \left(\frac{y}{x}\right)-\mathrm{\&pi;}& y<0,x<0\\ +\frac{\mathrm{\&pi;}}{2}& y>0,x=0\\ -\frac{\mathrm{\&pi;}}{2}& y<0,x=0\end{array}\right.$

4) if A≤90 °, the main dip B=A of rock stratum to be measured; If 90 ° of A >, the main dip B=180 of rock stratum to be measured °-A;

5) order, k=a _x, z=a _y, C=h (k, z), calculates the value of C;

Wherein:

$h(k,z)=\left\{\begin{array}{cc}\arctan \left(\frac{z}{k}\right)& k>0\\ \arctan \left(\frac{z}{k}\right)+\mathrm{\&pi;}& z\&GreaterEqual;0,k<0\\ \arctan \left(\frac{z}{k}\right)-\mathrm{\&pi;}& z<0,k<0\\ +\frac{\mathrm{\&pi;}}{2}& z>0,k=0\\ -\frac{\mathrm{\&pi;}}{2}& z<0,k=0\end{array}\right.$

6) if C >=0 makes D=C; If C < 0, makes D=360 °+C;

7) record the angle of mobile device coordinate system y axle and terrestrial magnetic field direction to the north pole by described direction sensor module;

8) make E=R-D;

9) if 0≤E≤90 ° make F1=E, F2=E+180 °, G=E+270 °, the trend of rock stratum to be measured is F1 and F2, the tendency of rock stratum to be measured is G;

If 90 ° of <E≤180 °, make F1=E, F2=E+180 °, G=E-90 °, the trend of rock stratum to be measured is F1 and F2, the tendency of rock stratum to be measured is G;

If 180 ° of <E≤360 °, make F1=E-180 °, F2=E, G=E-90 °, the trend of rock stratum to be measured is F1 and F2, the tendency of rock stratum to be measured is G;

If-180 °≤E<0, make F1=E+180 °, F2=E+360 °, G=E+270 °, the trend of rock stratum to be measured is F1 and F2, the tendency of rock stratum to be measured is G;

If-270 °≤E<-180 °, make F1=E+360 °, F2=E+540 °, G=E+270 °, the trend of rock stratum to be measured is F1 and F2, the tendency of rock stratum to be measured is G;

If-360 ° of <E<-270 °, make F1=E+360 °, F2=E+540 °, G=E+630 °, the trend of rock stratum to be measured is F1 and F2, the tendency of rock stratum to be measured is G.