CN203443583U

CN203443583U - Aquatic non-tidal observation measurement system based on JSCORS (Jiangsu Continuously Operating Reference Stations)

Info

Publication number: CN203443583U
Application number: CN201320574334.0U
Authority: CN
Inventors: 李昱
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-09-17
Filing date: 2013-09-17
Publication date: 2014-02-19
Anticipated expiration: 2023-09-17

Abstract

The utility model relates to an aquatic non-tidal observation measurement system based on JSCORS (Jiangsu Continuously Operating Reference Stations), which comprises a surveying vessel, wherein a depth finder and a GPS receiving device are mounted on the surveying vessel; the depth finder comprises an energy converter and is used for measuring the distance from the energy converter to the riverbed bottom; the GPS receiving device and the depth finder are respectively connected with a processing computer; the GPS receiving device is used for receiving differential signals of the JSCORS, obtaining the real-time planimetric position information of a measuring point and the elevation of a GPS antenna, and transmitting the signals and the information to the processing computer in real time; the processing computer is used for computing the elevation of the riverbed bottom of the measuring point according to the information transmitted by the GPS receiving device and the distance data measured by the depth finder; the GPS phase center of the GPS receiving device coincides with the projection position of the energy converter of the depth finder, and the real-time water level is obtained through GPS directly. According to the utility model, through the adoption of the technical scheme, the mode that a gaging station must be erected for traditional water depth measurement is changed, the workload is reduced, and the measurement accuracy is improved at the same time.

Description

A kind of waterborne without tide gauge measurement system based on JSCORS

Technical field

The utility model relates to water channel topographical surveying technical field, is specifically related to a kind of waterborne without tide gauge measurement system based on JSCORS.

Background technology

At present, water channel topographic surveying system is to utilize GPS to measure the planimetric position of water-bed point mostly, utilizes sounder to measure the depth of water of water-bed point, is setting up gaging station to obtain instantaneous tide gauge, to ask for the elevation of depth measurement point position.Defect is: need to utilize conventional measurement of the level means to set up gaging station, workload is large, and while needing Attended mode ，Dang Ce district's tidal action obvious, need carry out the correction of multistation tidal level, the more difficult control of precision.

Utility model content

The purpose of this utility model is that a kind of waterborne without tide gauge measurement system based on JSCORS is provided in order to overcome shortcoming of the prior art.

JSCORS's is waterborne without a tide gauge measurement system, comprises surveying vessel, on described surveying vessel, be provided with comprise transducer for measuring described transducer to sounder and the GPS receiving trap of the distance of riverbed bottom; Described GPS receiving trap, sounder are connected with process computer respectively, and described GPS receiving trap is for receiving real time position, plan position information and gps antenna elevation that JSCORS differential signal obtains measurement point real-time Transmission to described process computer; The range data that described process computer is measured for the information that transmits according to described GPS receiving trap and described sounder calculates the elevation of bottom, described measurement point riverbed.

The GPS phase center of described GPS receiving trap overlaps with the transducer projected position of described sounder, and directly by GPS, obtains real time water level.

The utility model, by technique scheme, has changed the pattern that traditional bathymetric survey must be set up gaging station, reduces workload, has improved measuring accuracy simultaneously.

Accompanying drawing explanation

Figure 1 shows that the structural representation without tide gauge measurement system waterborne based on JSCORS that the utility model provides:

In figure: 1, surveying vessel, 2, sounder, 3, GPS receiving trap, 4, the water surface, 5, benchmark altitude traverse, 6, bottom, riverbed.

Embodiment

In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model is further elaborated.

Referring to Fig. 1, the figure shows a kind of structure without tide gauge measurement system waterborne based on JSCORS that the utility model provides.For convenience of explanation, only show the relevant part of the utility model.

JSCORS described in the utility model refers to Jiangsu Province's global navigational satellite CORS integrated service system (J I Angsu Continuously Operating Reference Stations).

JSCORS's is waterborne without a tide gauge measurement system, comprises surveying vessel 1, on described surveying vessel 1, be provided with comprise transducer for measuring sounder 2 and the GPS receiving trap 3 of described transducer distance of 6 to riverbed bottom; Described GPS receiving trap 3, sounder 2 are connected with process computer respectively, and described GPS receiving trap 3 obtains real time position, plan position information and the gps antenna elevation of measurement point real-time Transmission to described process computer for receiving JSCORS differential signal; The range data that described process computer is measured for the information that transmits according to described GPS receiving trap and described sounder calculates the elevation of bottom, described measurement point riverbed 6.

Described sounder 2 is sonic echo depth finder.

Preferably, the GPS phase center of described GPS receiving trap overlaps with the transducer projected position of described sounder, and directly by GPS, obtains real time water level.

Shown in Figure 1, during use, GPS receiving trap 3, sounder 2 are arranged on surveying vessel 1, and the GPS phase center of GPS receiving trap 3 is overlapped with the projected position of the transducer of sounder 2, and GPS receiving trap 3 is connected with process computer; GPS receiving trap 3, by receiving JSCORS differential signal, obtains high-precision real time position and plan position information and the gps antenna elevation H of measurement point _{my god}be sent to described process computer; Then by described process computer, process: use gps antenna elevation H _{my god}deduct the height Δ H of gps antenna and depth sounder transducer, the real-time elevation H of transducer trying to achieve _return, then utilize transducer that sounder records to the distance h of bottom, riverbed 6, calculate the elevation H=h-H of the bottom, riverbed 6 of measurement point _return.

It should be noted that described gps antenna elevation H _{my god}, the real-time elevation H of transducer _return, the elevation H of the riverbed bottom 6 of measurement point be take benchmark altitude traverse 5 and is measured calculating as benchmark.

At THE LOWER YANGTZE VALLEY Fujiang sand shoal, carry out bathymetric surveying (engineer's scale 1: 10000), because Gai Ce district belongs to tidal reach, and river surface is wider, upstream and downstream, left and right banks ratio fall obvious, adopt the routine measurement system need be in two sides, left and right, the Changjiang river along the continuous gaging station of Cheng Bushe, and carry out measurement of the level and connect survey with water gauge by the method for conventional geometric level, program is loaded down with trivial details, workload is large, length consuming time, and precision is difficult to control.

Adopt the water depth measuring system based on JSCORS described in the utility model, can directly obtain the elevation of transducer, directly eliminated traditional measurement mode because the measuring error of bringing falls in aspect ratio, and greatly reduced workload, the duration shortens to 1/3rd of traditional measurement system.Through outer inspection, precision is far above national regulation requirement.

The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims

1. waterborne without a tide gauge measurement system based on JSCORS, is characterized in that, comprises surveying vessel, on described surveying vessel, be provided with comprise transducer for measuring described transducer to sounder and the GPS receiving trap of the distance of bottom, riverbed; Described GPS receiving trap, sounder are connected with process computer respectively, and described GPS receiving trap obtains the real-time plan position information of measurement point and gps antenna elevation real-time Transmission to described process computer for receiving JSCORS differential signal; The range data that described process computer is measured for the information that transmits according to described GPS receiving trap and described sounder calculates the elevation of bottom, described measurement point riverbed.

2. waterborne without tide gauge measurement system based on JSCORS according to claim 1, is characterized in that, the GPS phase center of described GPS receiving trap overlaps with the transducer projected position of described sounder.