阅读说明：本技术 复杂地形下rtk信号增强移动端及用法 (RTK signal enhancement mobile terminal under complex terrain and use method ) 是由 郑敦勇 梁继 林东方 廖孟光 于 2020-05-25 设计创作，主要内容包括：本发明所要解决的问题是,如何便携有效的使得RTK接收端接收高处信号。复杂地形下RTK信号增强移动端,包括天线端和主机,其特征为还包括伸缩杆,伸缩杆上具有刻度,用于读取伸缩杆的长度,天线端位于伸缩杆顶端,主机位于伸缩杆底端,天线端通过有线或无线的方式将接收到的信号传输给主机,由主机计算出天线的位置,再根据伸缩杆的长度和角度,得出主机自身位置。由于天线端是独立的,只需将重量很轻的天线端送至高处,因此伸缩杆的体积和重量可以做的很小,非常便携；由于天线端的重量很轻,伸缩杆可以做的很长,有效增强信号。(The invention aims to solve the problem of how to carry and effectively enable an RTK receiving end to receive high-altitude signals. RTK signal reinforcing removes end under complicated topography, including antenna end and host computer, characterized by still includes the telescopic link, has the scale on the telescopic link for read the length of telescopic link, the antenna end is located the telescopic link top, and the host computer is located the telescopic link bottom, and the antenna end transmits received signal for the host computer through wired or wireless mode, calculates the position of antenna by the host computer, again according to the length and the angle of telescopic link, reachs host computer self position. Because the antenna ends are independent, only the antenna end with light weight needs to be sent to a high position, the size and the weight of the telescopic rod can be very small, and the telescopic rod is very portable; because the weight of the antenna end is very light, the telescopic rod can be made very long, and signals are effectively enhanced.)

1. An RTK signal enhancement moving end under complex terrain comprises an antenna end and a host machine, and is characterized by also comprising a telescopic rod, wherein scales are arranged on the telescopic rod and used for reading the length of the telescopic rod, the antenna end is positioned at the top end of the telescopic rod, the host machine is positioned at the bottom end of the telescopic rod, the antenna end transmits a received signal to the host machine in a wired or wireless mode, the host machine calculates the position of the antenna, and then the position of the host machine is obtained according to the length and the angle of the telescopic rod,

wherein, the angle of telescopic link adopts following structure measurement: a rotating shaft is arranged between the telescopic rod and the host machine and used for adjusting an included angle between the telescopic rod and a horizontal plane, an inclination angle sensor is mounted on the telescopic rod and is mounted in the length direction of the telescopic rod in parallel and used for reading an inclination angle between the telescopic rod and the horizontal plane; the connection part of the telescopic rod and the host is a bearing, the axial direction of the bearing is a vertical direction, an angle sensor is arranged between the bearing and the host and used for measuring the rotation angle of the telescopic rod relative to the host and the angle of the host, and the angle is determined by adopting a total station or a theodolite according to measurement of other known points;

or the angle of the telescopic rod is measured by adopting the following structure: a rotating shaft is arranged between the telescopic rod and the host machine and used for adjusting an included angle between the telescopic rod and a horizontal plane, an inclination angle sensor is mounted on the telescopic rod and is mounted in the length direction of the telescopic rod in parallel and used for reading an inclination angle between the telescopic rod and the horizontal plane; the connecting part of the telescopic rod and the host is a bearing, the axis direction of the bearing is vertical, the compass is horizontally arranged on the bearing, the center of the compass is arranged on the central line of the bearing, and the dial of the compass is fixedly connected with the bearing and rotates together for measuring the rotation angle of the bearing.

2. The RTK signal enhancement moving end under complex topography of claim 1, characterized in that the antenna end is coaxial with the telescoping rod, said axis is the central axis of the telescoping rod in the length direction, the phase center of the antenna is on the axis.

3. The RTK signal enhancement mobile terminal under complicated topography of claim 1, characterized in that the telescopic link is formed by connecting in series the hollow pole of multistage, and its length is not less than 8 meters after the telescopic link is fully stretched out, and the signal transmission line between antenna end and the host computer is located the telescopic link inside.

4. The RTK signal enhancement mobile terminal under the complex terrain according to claim 1, characterized in that the antenna terminal comprises an antenna and a signal repeater, and the signal repeater forwards the signal received by the antenna to the host computer in a wired or wireless manner.

5. The RTK signal enhancement mobile terminal under complex topography of claim 4, characterized in that the antenna terminal further comprises a power supply for powering the signal repeater or a host power supply is used, the host power supply is electrically connected with the signal converter of the antenna by a signal transmission line.

6. Use of an RTK mobile terminal, the RTK mobile terminal being the under-complex-terrain RTK signal-enhanced mobile terminal of claim 1, characterized in that: a. horizontally fixing the host on the point to be measured; b. opening the host computer, checking whether the signal strength meets the requirements, measuring when the signal strength meets the requirements, and pulling open the telescopic rod when the signal strength does not meet the requirements, sending the antenna to a high position, and enhancing the signal to ensure that the signal strength meets the requirements; c. the host calculates the position of the antenna according to the data returned by the antenna, and then determines the position of the host according to the length and the angle of the telescopic rod; d. and calculating the position of the point to be measured according to the instrument height of the host.

7. The use of an RTK mobile terminal as claimed in claim 6, wherein the telescopic rod is composed of multiple rods connected in series, and when the telescopic rod is extended, the upper rod is extended completely, and then the lower rod is extended, and the length of the telescopic rod can be obtained by reading the scale of the telescopic part of the lowest rod.

Technical Field

The invention relates to the technical field of measurement, in particular to an RTK measuring device and method.

Background

In some areas with complex terrain, such as scenic spots, when making a travelator measurement, many local RTKs have no signal due to the blockage of trees. The existing solution is to use a longer centering rod to bring the RTK moving end to the high to enhance the signal.

Because the RTK moving end has a certain weight, when the RTK moving end is sent to a high place, the centering rod is heavy and is inconvenient to carry and use in order to keep the position stable; meanwhile, under the design, the centering rod cannot be too long, the longest centering rod is generally within 8 meters and is lower than the crown height of a higher tree, and signals cannot be effectively enhanced.

In addition, when an obstacle is arranged right above a measuring point, the existing centering rod does not support inclined use, so that the influence of the obstacle right above the measuring point on the signal intensity cannot be avoided, and the measuring at the point cannot be carried out.

Disclosure of Invention

The invention aims to solve the problem of how to carry and effectively enable an RTK receiving end to receive a high-altitude signal and avoid the influence of an obstacle right above a measuring point on the signal strength.

An RTK signal enhancement moving end under complex terrain comprises an antenna end and a host machine, and is characterized by also comprising a telescopic rod, wherein scales are arranged on the telescopic rod and used for reading the length of the telescopic rod, the antenna end is positioned at the top end of the telescopic rod, the host machine is positioned at the bottom end of the telescopic rod, the antenna end transmits a received signal to the host machine in a wired or wireless mode, the host machine calculates the position of the antenna, and then the position of the host machine is obtained according to the length and the angle of the telescopic rod,

wherein, the angle of telescopic link adopts following structure measurement: a rotating shaft is arranged between the telescopic rod and the host machine and used for adjusting an included angle between the telescopic rod and a horizontal plane, an inclination angle sensor is mounted on the telescopic rod and is mounted in the length direction of the telescopic rod in parallel and used for reading an inclination angle between the telescopic rod and the horizontal plane; the connection part of the telescopic rod and the host is a bearing, the axial direction of the bearing is a vertical direction, an angle sensor is arranged between the bearing and the host and used for measuring the rotation angle of the telescopic rod relative to the host and the angle of the host, and the angle is determined by adopting a total station or a theodolite according to measurement of other known points;

or the angle of the telescopic rod is measured by adopting the following structure: a rotating shaft is arranged between the telescopic rod and the host machine and used for adjusting an included angle between the telescopic rod and a horizontal plane, an inclination angle sensor is mounted on the telescopic rod and is mounted in the length direction of the telescopic rod in parallel and used for reading an inclination angle between the telescopic rod and the horizontal plane; the connecting part of the telescopic rod and the host is a bearing, the axis direction of the bearing is vertical, the compass is horizontally arranged on the bearing, the center of the compass is arranged on the central line of the bearing, and the dial of the compass is fixedly connected with the bearing and rotates together for measuring the rotation angle of the bearing.

The RTK mobile terminal is actually positioned at the phase center of the RTK antenna, so that the RTK antenna and the host can keep a certain distance on the premise of keeping signal connection of the RTK antenna and the host, and the host can be calculated by only determining the distance and the azimuth angle. Because the antenna ends are independent, the antenna ends with light weight only need to be sent to a high position, so the size and the weight of the telescopic rod can be very small, and the telescopic rod is very portable. The telescopic link angularly adjustable can avoid the measuring point directly over obstacle to signal intensity's influence, adapts to more complicated topography. The connecting structure between the telescopic rod and the host machine enables the measurement of the tilt angle sensor and the measurement of the angle sensor to be mutually independent, the vertical tilt angle and the horizontal included angle of the polar coordinate are respectively represented, and the position of the host machine can be accurately converted according to the position of the antenna. The total station or the theodolite is used for measuring the angle, so that the measuring accuracy can be accurately ensured. The compass is simple in angle measurement operation and convenient to use under the condition of low measurement precision requirement.

Furthermore, the antenna end is coaxial with the telescopic rod, the axis is the central axis of the telescopic rod in the length direction, and the phase center of the antenna is on the axis.

The phase center position of the antenna is measured by the RTK moving end, and the antenna end and the telescopic rod are coaxial, so that the phase center of the antenna is on the central shaft of the telescopic rod, and calculation of angle conversion is omitted.

Furthermore, the telescopic rod is formed by connecting a plurality of sections of hollow rods in series, the length of the telescopic rod is not less than 8 m after the telescopic rod is completely extended, and a signal transmission line between the antenna end and the host is positioned in the telescopic rod.

Because the weight of the antenna end is very light, the telescopic rod can be made very long, and signals are effectively enhanced; the signal transmission line is located inside the telescopic rod, so that the space inside the telescopic rod is effectively utilized, and the telescopic rod structure is attractive.

Furthermore, the antenna end comprises an antenna and a signal repeater, and the signal repeater forwards the signal received by the antenna to the host computer in a wired or wireless mode.

The antenna end is equivalent to an independent antenna, and the position of the antenna phase center is directly calculated by a host.

Furthermore, the antenna terminal also comprises a power supply for supplying power to the signal repeater or a host power supply, and the host power supply is electrically connected with the signal converter of the antenna by a signal transmission line.

The signal transmission line is used as the wire, so that the weight can be reduced, the structure is simplified, and the production and the use are convenient.

The usage is as follows: a. horizontally fixing the host on the point to be measured; b. opening the host computer, checking whether the signal strength meets the requirements, measuring when the signal strength meets the requirements, and pulling open the telescopic rod when the signal strength does not meet the requirements, sending the antenna to a high position, and enhancing the signal to ensure that the signal strength meets the requirements; c. the host calculates the position of the antenna according to the data returned by the antenna, and then determines the position of the host according to the length and the angle of the telescopic rod; d. and calculating the position of the point to be measured according to the instrument height of the host.

Furthermore, the telescopic rod is formed by connecting a plurality of sections of rods in series, when the telescopic rod is stretched, the upper rod is stretched out completely, then the lower rod is stretched out, and the length of the telescopic rod can be obtained only by reading the scale at the telescopic part of the lowest rod.

Drawings

FIG. 1 is a schematic overall structure diagram of an RTK signal enhancement mobile terminal under complex terrain;

FIG. 2 is a schematic diagram of an antenna end configuration;

FIG. 3 is a schematic structural diagram of a tilt sensor and an angle sensor;

fig. 4 is a schematic structural view of the telescopic rod at the bearing position when the telescopic rod is removed.

In the figure: 1. the system comprises an antenna end, a host, a telescopic rod, a rod 31, an antenna 11, a signal repeater 12, an inclination angle sensor 32, a bearing 4 and an angle sensor 5.

Detailed Description