PATENT CLAIM ANALYSIS

Application Number: 16315168
Application Type: Utility
Filing Date: 2019-01
Publication Date: 2019-10
Patent Classification: ["702", "154000"]

Abstract:
A tilt measurement method for an RTK measuring receiver includes the following steps: step Si: fixing the bottom of a centering rod and performing a measurement after an inclination and shake; step S 2:  obtaining a measurement point sequence, a measurement point tilt sequence, a length of the centering rod, and a height of an antenna phase center based on the measurement; step S 3:  obtaining a positioning quality threshold and a geodetic coordinate of the to-be-measured point based on values obtained from the measurement; and step S 4:  determining whether the positioning quality threshold meets a requirement or not to decide whether to finish the measurement or not. In the method, the position of a to-be-measured point is calculated according to the position and the tilt angle of the antenna phase center of the receiver, and the length of the centering rod etc. during multiple tilt measurements.

Claim (Index 7):
The tilt measurement method for the RTK measuring receiver according to  claim 4 , wherein in the step of S 3 a ,\n assuming that a planar coordinate of the antenna phase center of a receiver is (N i , E i ) and a geodetic height is H i  (wherein, i is 1, 2 . . . , n, n is a total number of observation points, the same below), and assuming that a planar coordinate and the geodetic height of the to-be-measured point O are (\u00d1 0 , {tilde over (E)} 0 , ) and {tilde over (H)} 0  respectively and a length from the to-be-measured point to the observation point is {tilde over (L)} i , the first type of observation equation is expressed by an equation (1):\n {tilde over (L)} i =\u221a{square root over ((N i \u2212\u00d1 0 ) 2 +(E i \u2212{tilde over (E)} 0 ) 2 +(H i \u2212{tilde over (H)} 0 ) 2 )}\u2003\u2003(1) \n an equation (2) is obtained after a linearization: v L i = ( N 0 - N i ) L i 0 \ue89e v N + ( E 0 - E i ) L i 0 \ue89e v E + ( H 0 - H i ) L i 0 \ue89e v H - ( L i - L i 0 ) ( 2 ) wherein v L i  is a length correction number; (v N , V E , v H ) is a coordinate correction number of the to-be-measured point, (N 0 , E 0 , H 0 ) is an approximate coordinate of the to-be-measured point, L i  is a sum of a length of the centering rod and a height of an antenna; L i 0  is a distance calculated from the coordinate of the observation point and the approximate coordinate of the to-be-measured point.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 99.0
- Lexical Diversity: 2.27778
- Patent Class: 702.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['11149692', '12373942', '10415674', '15547062', '12296647']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.211420205038146
- 35 USC 102 Novelty (BERT): 0.4857740478205544
- Combined Prediction Score: 0.2388555893163868
- Mean Citation Score: 173.88468600000004
- Max Citation Score: 178.11545
- Similarity Product: 119.2736448073566

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test