CN114755699A - RTK receiver and lofting method - Google Patents
RTK receiver and lofting method Download PDFInfo
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- CN114755699A CN114755699A CN202210464435.6A CN202210464435A CN114755699A CN 114755699 A CN114755699 A CN 114755699A CN 202210464435 A CN202210464435 A CN 202210464435A CN 114755699 A CN114755699 A CN 114755699A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/14—Receivers specially adapted for specific applications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/02—Means for marking measuring points
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/40—Correcting position, velocity or attitude
- G01S19/41—Differential correction, e.g. DGPS [differential GPS]
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Abstract
The invention discloses an RTK receiver and a lofting method, wherein the RTK receiver comprises an inertia measurement unit, a positioning module, an input module, a processing module and a transmitting device, wherein the input module is used for receiving lofting point parameters; the positioning module is used for acquiring positioning information of the current position; the inertia measurement unit is used for acquiring the attitude information of the RTK receiver; the processing module is used for acquiring lofting point position information corresponding to the lofting point parameters according to the positioning information, the lofting point parameters and the posture information; the processing module is also used for acquiring the position relation between the lofting point position information and the positioning information; and the transmitting device is used for projecting indicating light to the actual position corresponding to the position information of the lofting point according to the position relation. The invention combines the RTK technology and the inclination measurement, obtains the lofting point position in real time, indicates and visually displays the target lofting point position, effectively solves the problems of difficult point finding and difficult point fixing of a user, saves the operation time and improves the working efficiency.
Description
Technical Field
The invention relates to an RTK receiver and a lofting method.
Background
The engineering survey is a general term of surveying and mapping work in engineering, and includes various surveying and mapping work performed in the related and engineering construction, construction and management stages and the like.
The lofting in engineering measurement is to measure the point locations on the design or drawing on the spot. The three-dimensional positioning measurement of any space object is reflected in the measurement of three quantities of distance, angle (direction) and elevation, the conventional RTK lofting method generally needs to subjectively judge how to loft by means of an electronic handbook, so that lofting points cannot be intuitively reflected on the spot, and the working efficiency and the accuracy are reduced.
Disclosure of Invention
The invention aims to overcome the defects that a lofting method in the prior art generally needs to subjectively judge how to loft by means of an electronic handbook, so that lofting points cannot be intuitively reflected on the spot, and the working efficiency and the accuracy are reduced.
The invention solves the technical problems through the following technical scheme:
an RTK receiver with tilt measurement function comprises an inertia measurement unit, a positioning module, an input module, a processing module and a transmitting device,
the input module is used for receiving lofting point parameters;
the positioning module is used for acquiring positioning information of the current position;
the inertial measurement unit is used for acquiring attitude information of the RTK receiver;
the processing module is used for acquiring lofting point position information corresponding to the lofting point parameters according to the positioning information, the lofting point parameters and the posture information;
the processing module is further used for acquiring the position relation between the lofting point position information and the positioning information;
and the transmitting device is used for projecting indicating light to the actual position corresponding to the lofting point position information according to the position relation.
Preferably, the RTK receiver may be fixed by a centering rod.
The processing module is used for acquiring the coordinates of the transmitting point of the transmitting device according to the relationship between the transmitting device and the positioning module, the attitude information and the positioning information;
the processing module is also used for acquiring the coordinates of the target sampling point according to the sampling point parameters;
the processing module is further used for acquiring a vector from the transmitting point to the target lofting point according to the coordinates of the transmitting point and the coordinates of the target lofting point as the position relation;
and the transmitting device is used for transmitting laser to the actual position corresponding to the target lofting point according to the position relation.
Preferably, the transmitting device is a laser module, a laser transmitting head of the laser module is fixed on a housing of the RTK receiver,
the processing module is used for acquiring the transmitting direction of the laser transmitting head according to the relation between the laser transmitting head and the positioning module, the attitude information and the positioning information;
the processing module is used for judging whether the transmitting direction is coincident with the vector from the transmitting point to the target lofting point, and if so, activating the laser transmitting head to project laser.
Preferably, the laser module comprises a power regulator, the power regulator is connected with the laser emitting head,
the processing module is used for acquiring an included angle between the transmitting direction and a vector from the transmitting point to the target lofting point;
the processing module is further used for controlling the power regulator according to the included angle, and the smaller the included angle is, the larger the transmitting power of the laser transmitting head is regulated by the power regulator.
Preferably, the laser emitting head includes a laser emitter and a focusing lens,
the processing module is used for acquiring an included angle between the transmitting direction and a vector from the transmitting point to a target lofting point;
the processing module is further used for controlling the distance between the laser emitter and the focusing lens according to the included angle, and the smaller the included angle is, the higher the focusing degree of the laser emitter and the focusing lens is.
Preferably, the loft point parameters include initial coordinates of an initial loft point,
the processing module is used for acquiring the position relation between the initial coordinate and the positioning information according to the positioning information, the initial coordinate and the attitude information;
the emitting device is used for projecting indicating light to a real position corresponding to the initial coordinate according to the position relation;
for a to-be-measured lofting point, the processing module is further used for acquiring the relation between the to-be-measured lofting point and the initial lofting point according to the lofting point parameters and then acquiring the coordinates of the to-be-measured lofting point;
the processing module is used for acquiring the position relation between the coordinates of the to-be-detected lofting points and the positioning information according to the positioning information, the coordinates of the to-be-detected lofting points and the posture information;
and the transmitting device is used for projecting indicating light to the actual position corresponding to the lofting point to be tested according to the position relation.
Preferably, the transmitting device is a projection module, a projection lens of the projection module is fixed to a housing of the RTK receiver,
the processing module is used for acquiring a vector to be projected of the projection lens according to the relation between the projection lens and the positioning module, the attitude information and the positioning information;
the processing module is used for judging whether the current vector to be projected is located in the projection area of the current projection module, and if so, the projection module is controlled to project an image used for indicating the actual position of the lofting point along the projection direction.
Preferably, the first and second liquid crystal films are made of a polymer,
the processing module is used for acquiring a projection direction vector of the projection lens according to the relation between the projection lens and the positioning module, the attitude information and the positioning information;
the processing module is used for judging whether the current vector to be projected is positioned in a projection area of the current projection module according to an included angle between the vector to be projected and a projection direction vector, if so, controlling the projection module to project an image for indicating the actual position of a lofting point along the projection direction, otherwise, acquiring an intersection point of the vector to be projected and the projection direction vector on a target plane, and then acquiring an indication image according to the indication vector, wherein the indication vector is a vector from the intersection point of the projection direction vector on the target plane to the intersection point of the vector to be projected on the target plane, and the target plane is vertical to the projection direction;
the processing module is used for controlling the projection module to project the indication graph.
Preferably, the processing module is configured to set a length of the indication graph according to the length of the indication vector, and when an included angle between the vector to be projected and the projection direction vector is greater than 90 degrees, prompt to rotate an indicator of the RTK receiver on a projection interface.
A lofting method based on an RTK receiver, which uses the RTK receiver as described above for lofting.
On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the invention.
The positive progress effects of the invention are as follows:
the invention adopts the method of lofting by on-site projection, when a user approaches to a target lofting point, the RTK receiver directly marks the position of the target lofting point on the on-site through laser by receiving differential correction data and combining with IMU attitude data built in the receiver, so that the user can visually confirm the position and rapidly loft, the operation is convenient, the control is accurate, the lofting is fast and accurate, the lofting efficiency and the accuracy are effectively improved, and the lofting work difficulty is reduced.
Drawings
Fig. 1 is a schematic diagram of an RTK receiver according to embodiment 1 of the present invention.
FIG. 2 is a flow chart of the lofting method according to embodiment 1 of the present invention.
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the invention thereto.
Example 1
Referring to fig. 1, the present embodiment provides an RTK receiver having a tilt measurement function.
The RTK receiver 11 includes an inertial measurement unit, a positioning module, an input module, a processing module, and a transmitter. The emitting device may be a laser emitter, a projection device, or the like.
The input module is used for receiving the lofting point parameters, and the input module may include a touch screen or a data transmission interface. And inputting target lofting point parameters from the outside. The handbook device 12 obtains the target lofting point parameters, and the handbook device may be a portable device such as a handbook, a mobile phone, and a tablet.
The positioning module is used for acquiring positioning information of the current position, and coordinates of the RTK receiver and coordinates of the bottom of the centering rod installed on the receiver can be acquired by using the positioning information. An antenna module and wireless communication equipment are arranged in the RTK receiver, and differential correction data are obtained. The wireless communication equipment comprises a radio station module and a network module, and can be any one.
The inertial measurement unit is used for acquiring attitude information of the RTK receiver; an inertial measurement unit (IMU module) acquires attitude data of an RTK receiver. The receiver is internally provided with an IMU module which comprises a three-axis accelerometer and a three-axis gyroscope and is used for acquiring the attitude data of the RTK receiver. And the RTK receiver calculates the position relation according to the attitude information and the target sampling point parameters and acquires the actual position of the sampling point.
The processing module is used for acquiring lofting point position information corresponding to the lofting point parameters according to the positioning information, the lofting point parameters and the posture information;
the processing module is further used for acquiring the position relation between the lofting point position information and the positioning information;
the emitting device 13 is configured to project indicating light to the real position 14 corresponding to the lofting point position information according to the position relationship.
The RTK receiver may be fixed by a centering rod.
The processing module is used for acquiring the coordinates of the transmitting point of the transmitting device according to the relationship between the transmitting device and the positioning module, the attitude information and the positioning information;
the processing module is also used for acquiring the coordinates of the target sampling point according to the sampling point parameters;
the processing module is further used for acquiring a vector from the transmitting point to the target lofting point according to the coordinates of the transmitting point and the coordinates of the target lofting point as the position relation;
and the transmitting device is used for transmitting laser to the actual position corresponding to the target lofting point according to the position relation.
The transmitting device is a laser module, a laser transmitting head of the laser module is fixed on a shell of the RTK receiver,
the processing module is used for acquiring the transmitting direction of the laser transmitting head according to the relation between the laser transmitting head and the positioning module, the attitude information and the positioning information;
the processing module is used for judging whether the transmitting direction is coincident with a vector from the transmitting point to the target lofting point or not, and if so, the laser transmitting head is activated to project laser.
The laser beam projects the lofting point position on the spot, and projection equipment includes the laser module, can generate the laser beam to the accurate coordinate position of projection can reach the high accuracy of millimeter level. The laser module and the RTK receiver unit are fixed in the position relation in the use state.
Furthermore, in order to facilitate real-time positioning and real-time point finding of a user, the laser module of the embodiment includes a power regulator, and the power regulator is connected with the laser emitting head.
The processing module is used for acquiring an included angle between the transmitting direction and a vector from the transmitting point to a target lofting point;
the processing module is further used for controlling the power regulator according to the included angle, and the smaller the included angle is, the larger the transmitting power of the laser transmitting head is regulated by the power regulator.
In other embodiments, the laser emitting head includes a laser emitter and a focusing lens.
The processing module is used for acquiring an included angle between the transmitting direction and a vector from the transmitting point to a target lofting point;
the processing module is further used for controlling the distance between the laser emitter and the focusing lens according to the included angle, and the smaller the included angle is, the higher the focusing degree of the laser emitter and the focusing lens is.
The lofting point parameters include an initial coordinate of an initial lofting point, the initial coordinate is allocated to the initial lofting point, and then in a design drawing, the coordinate of a subsequent lofting point can be calculated according to the relationship between the subsequent lofting point and the initial lofting point.
The processing module is used for acquiring the position relation between the initial coordinate and the positioning information according to the positioning information, the initial coordinate and the attitude information;
the emitting device is used for projecting indicating light to a real position corresponding to the initial coordinate according to the position relation;
for a to-be-measured lofting point, the processing module is further used for acquiring the relation between the to-be-measured lofting point and the initial lofting point according to the lofting point parameters and then acquiring the coordinates of the to-be-measured lofting point;
the processing module is used for acquiring the position relation between the coordinates of the lofting points to be detected and the positioning information according to the positioning information, the coordinates of the lofting points to be detected and the posture information;
and the transmitting device is used for projecting indicating light to the actual position corresponding to the lofting point to be measured according to the position relation.
The measurement accuracy can be further verified by comparing the actual position relation of the initial coordinate and the coordinates of the lofting point to be measured with a drawing.
Referring to fig. 2, with the RTK receiver described above, the present embodiment further provides a lofting method, including:
102, acquiring attitude information of an RTK receiver by the inertial measurement unit;
103, the processing module acquires lofting point position information corresponding to the lofting point parameters according to the positioning information, the lofting point parameters and the posture information;
104, the processing module acquires the position relation between the lofting point position information and the positioning information;
and 105, projecting indicating light to a real position corresponding to the lofting point position information by the emitting device according to the position relation.
Further, the RTK receiver is fixed by a centering rod,
step 104 specifically includes:
the processing module acquires the coordinates of the transmitting point of the transmitting device according to the relationship between the transmitting device and the positioning module, the attitude information and the positioning information;
the processing module acquires the coordinates of the target sampling point according to the sampling point parameters;
the processing module acquires a vector from the transmitting point to the target lofting point according to the coordinates of the transmitting point and the coordinates of the target lofting point as the position relation;
and the transmitting device transmits laser to the actual position corresponding to the target lofting point according to the position relation.
Further, the transmitting device is a laser module, a laser transmitting head of the laser module is fixed on a shell of the RTK receiver, and the lofting method comprises the following steps:
the processing module acquires the transmitting direction of the laser transmitting head according to the relation between the laser transmitting head and the positioning module, the attitude information and the positioning information;
and the processing module judges whether the transmitting direction is coincident with a vector from the transmitting point to a target lofting point or not, and activates the laser transmitting head to project laser if the transmitting direction is coincident with the vector from the transmitting point to the target lofting point.
In order to facilitate the user to find the actual position accurately, one specific way is: the laser module comprises a power regulator, the power regulator is connected with the laser emitting head, and the lofting method comprises the following steps:
the processing module obtains an included angle between the transmitting direction and a vector from the transmitting point to a target lofting point;
the processing module controls the power regulator according to the included angle, and the smaller the included angle is, the larger the transmitting power of the laser transmitting head is regulated by the power regulator.
The other concrete mode is as follows: the laser emitting head comprises a laser emitter and a focusing lens, and the lofting method comprises the following steps:
the processing module obtains an included angle between the transmitting direction and a vector from the transmitting point to a target lofting point;
the processing module controls the distance between the laser emitter and the focusing lens according to the included angle, and the smaller the included angle is, the higher the focusing degree of the laser emitter and the focusing lens is.
The lofting point parameters comprise initial coordinates of an initial lofting point, and the lofting method comprises the following steps:
the processing module acquires a position relation between the initial coordinate and the positioning information according to the positioning information, the initial coordinate and the attitude information;
the transmitting device projects indicating light to a real position corresponding to the initial coordinate according to the position relation;
for a to-be-measured lofting point, the processing module acquires the relation between the to-be-measured lofting point and the initial lofting point according to the lofting point parameters, and then acquires the coordinates of the to-be-measured lofting point;
the processing module acquires the position relation between the coordinates of the lofting points to be detected and the positioning information according to the positioning information, the coordinates of the lofting points to be detected and the posture information;
and the transmitting device projects indicating light to the actual position corresponding to the lofting point to be tested according to the position relation.
Example 2
This embodiment is substantially the same as embodiment 1 except that:
the transmitting device is a projection module, and a projection lens of the projection module is fixed on a shell of the RTK receiver.
The processing module is used for acquiring a vector to be projected of the projection lens according to the relation between the projection lens and the positioning module, the attitude information and the positioning information;
the processing module is used for judging whether the current vector to be projected is located in the projection area of the current projection module, and if so, the projection module is controlled to project an image used for indicating the actual position of the lofting point along the projection direction.
The processing module is used for acquiring a projection direction vector of the projection lens according to the relation between the projection lens and the positioning module, the attitude information and the positioning information;
the relationship between the projection lens and the positioning module, the posture information and the positioning information can not only obtain the projection direction vector, but also obtain the posture of the projection lens, and further obtain the projected image posture. The processing module is used for judging whether the current vector to be projected is located in a projection area of the current projection module according to an included angle between the vector to be projected and a projection direction vector, if so, controlling the projection module to project an image for indicating the real position of a lofting point along the projection direction, otherwise, acquiring an intersection point of the vector to be projected and the projection direction vector on a target plane, and then acquiring an indication image according to the indication vector, wherein the indication vector is a vector from the intersection point of the projection direction vector on the target plane to the intersection point of the vector to be projected on the target plane, and the target plane is perpendicular to the projection direction;
the processing module is used for controlling the projection module to project the indication graph.
The indication graph can be obtained by utilizing the image posture and the indication vector.
The processing module is used for setting the length of the indication graph according to the length of the indication vector, and when the included angle between the vector to be projected and the projection direction vector is larger than 90 degrees, the indicating word of the RTK receiver is prompted to rotate on a projection interface.
Correspondingly, with the RTK receiver described above, the lofting method includes:
the processing module acquires a vector to be projected of the projection lens according to the relation between the projection lens and the positioning module, the attitude information and the positioning information;
and the processing module judges whether the current vector to be projected is positioned in the projection area of the current projection module, and if so, the processing module controls the projection module to project an image indicating the actual position of the lofting point along the projection direction.
Further, the lofting method comprises the following steps:
the processing module acquires a projection direction vector of the projection lens according to the relation between the projection lens and the positioning module, the attitude information and the positioning information;
the processing module judges whether the current vector to be projected is located in a projection area of the current projection module according to an included angle between the vector to be projected and a projection direction vector, if so, the projection module is controlled to project an image indicating the actual position of a lofting point along the projection direction, if not, an intersection point of the vector to be projected and the projection direction vector on a target plane is obtained, then an indication graph is obtained according to the indication vector, the indication vector is a vector from the intersection point of the projection direction vector on the target plane to the intersection point of the vector to be projected on the target plane, and the target plane is perpendicular to the projection direction;
the processing module controls the projection module to project the indication graph.
Specifically, the lofting method comprises the following steps: and the processing module sets the length of the indication graph according to the length of the indication vector, and when the included angle between the vector to be projected and the projection direction vector is greater than 90 degrees, the processing module prompts to rotate the indicator of the RTK receiver on a projection interface.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that these are by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (10)
1. An RTK receiver with tilt measurement function, characterized in that the RTK receiver comprises an inertial measurement unit, a positioning module, an input module, a processing module and a transmitting device,
the input module is used for receiving lofting point parameters;
the positioning module is used for acquiring positioning information of the current position;
the inertial measurement unit is used for acquiring attitude information of the RTK receiver;
the processing module is used for acquiring lofting point position information corresponding to the lofting point parameters according to the positioning information, the lofting point parameters and the attitude information;
the processing module is further used for acquiring the position relation between the lofting point position information and the positioning information;
and the transmitting device is used for projecting indicating light to the actual position corresponding to the lofting point position information according to the position relation.
2. The RTK receiver of claim 1,
the processing module is used for acquiring the coordinates of the transmitting point of the transmitting device according to the relationship between the transmitting device and the positioning module, the attitude information and the positioning information;
the processing module is also used for acquiring the coordinates of the target sampling point according to the sampling point parameters;
the processing module is further used for acquiring a vector from the transmitting point to the target lofting point according to the coordinates of the transmitting point and the coordinates of the target lofting point as the position relation;
and the transmitting device is used for transmitting laser to the actual position corresponding to the target lofting point according to the position relation.
3. The RTK receiver of claim 2, wherein the transmitting device is a laser module having a laser transmitting head secured to a housing of the RTK receiver,
the processing module is used for acquiring the transmitting direction of the laser transmitting head according to the relation between the laser transmitting head and the positioning module, the attitude information and the positioning information;
the processing module is used for judging whether the transmitting direction is coincident with the vector from the transmitting point to the target lofting point, and if so, activating the laser transmitting head to project laser.
4. The RTK receiver of claim 3, wherein the laser module includes a power regulator, the power regulator being coupled to the laser emitting head,
the processing module is used for acquiring an included angle between the transmitting direction and a vector from the transmitting point to a target lofting point;
the processing module is further used for controlling the power regulator according to the included angle, and the smaller the included angle is, the larger the transmitting power of the laser transmitting head is regulated by the power regulator.
5. The RTK receiver of claim 3, wherein the laser emitting head comprises a laser emitter and a focusing lens,
the processing module is used for acquiring an included angle between the transmitting direction and a vector from the transmitting point to a target lofting point;
the processing module is further used for controlling the distance between the laser emitter and the focusing lens according to the included angle, and the smaller the included angle is, the higher the focusing degrees of the laser emitter and the focusing lens are.
6. The RTK receiver of claim 1, wherein the loft point parameters include initial coordinates of an initial loft point,
the processing module is used for acquiring the position relation between the initial coordinate and the positioning information according to the positioning information, the initial coordinate and the attitude information;
the emitting device is used for projecting indicating light to a real position corresponding to the initial coordinate according to the position relation;
for a to-be-measured lofting point, the processing module is further used for acquiring the relation between the to-be-measured lofting point and the initial lofting point according to the lofting point parameters and then acquiring the coordinates of the to-be-measured lofting point;
the processing module is used for acquiring the position relation between the coordinates of the to-be-detected lofting points and the positioning information according to the positioning information, the coordinates of the to-be-detected lofting points and the posture information;
and the transmitting device is used for projecting indicating light to the actual position corresponding to the lofting point to be measured according to the position relation.
7. The RTK receiver of claim 2, wherein the transmitting device is a projection module having a projection lens secured to a housing of the RTK receiver,
the processing module is used for acquiring a vector to be projected of the projection lens according to the relation between the projection lens and the positioning module, the attitude information and the positioning information;
the processing module is used for judging whether the current vector to be projected is located in the projection area of the current projection module, and if so, the projection module is controlled to project an image used for indicating the actual position of the lofting point along the projection direction.
8. The RTK receiver of claim 7,
the processing module is used for acquiring a projection direction vector of the projection lens according to the relation between the projection lens and the positioning module, the attitude information and the positioning information;
the processing module is used for judging whether the current vector to be projected is located in a projection area of the current projection module according to an included angle between the vector to be projected and a projection direction vector, if so, controlling the projection module to project an image for indicating the real position of a lofting point along the projection direction, otherwise, acquiring an intersection point of the vector to be projected and the projection direction vector on a target plane, and then acquiring an indication image according to the indication vector, wherein the indication vector is a vector from the intersection point of the projection direction vector on the target plane to the intersection point of the vector to be projected on the target plane, and the target plane is perpendicular to the projection direction;
the processing module is used for controlling the projection module to project the indication graph.
9. The RTK receiver of claim 8, wherein the processing module is configured to set the length of the indicator graphic according to the length of the indicator vector, and to prompt the indicator of the RTK receiver to rotate on the projection interface when the angle between the vector to be projected and the projection direction vector is greater than 90 degrees.
10. A lofting method based on an RTK receiver, characterized in that the lofting method utilizes the RTK receiver of any one of claims 1 to 9 for lofting.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210464435.6A CN114755699A (en) | 2022-04-29 | 2022-04-29 | RTK receiver and lofting method |
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| CN202210464435.6A CN114755699A (en) | 2022-04-29 | 2022-04-29 | RTK receiver and lofting method |
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| CN202210464435.6A Pending CN114755699A (en) | 2022-04-29 | 2022-04-29 | RTK receiver and lofting method |
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