Warning device for surveying and mapping operations

Abstract

The invention relates to the technical field of mapping tools and concretely relates to an attention device for mapping work. The attention device comprises a back plate and a rack, wherein a back plate power supply is disposed in the back plate; a back belt is mounted on one surface of the back plate; the other surface of the back plate is provided with a first electromagnet, double contact pointreed pipe and an alarm light; a normally-closed contact of the double contact point reed pipe controls on-off of a first alarm light; a normally-open contact of the double contact point reed pipe controls on-off of a first electromagnet; the rack can support a mapping device; a connection plate is arranged on the rack and connected with the back plate; a second electromagnet is mounted on the connection plate; and the second electromagnet controls a conduction state of the double contact point reed pipe. The attention device for the mapping work can solve problems of poor alarming effect andpotential safety danger existence of an alarm board or a reflective attention device in the prior art.

Description

technical field [0001] The invention relates to the technical field of surveying and mapping tools, in particular to a warning device used in surveying and mapping operations. Background technique [0002] Surveying and mapping refers to the measurement and collection of the shape, size, spatial position and attributes of natural geographical elements or surface artificial facilities. [0003] Surveying and mapping research measures and calculates the geometric position of ground points, the shape of the earth and the earth's gravity field, based on which the natural shape of the earth's surface and the geometric distribution of artificial facilities are measured, and combined with the geographical distribution of certain social information and natural information, the compilation of global and local Theoretical and technical disciplines of regional maps of various scales and thematic maps. Also known as surveying. It includes two main contents of surveying and mapping. S...

AI Technical Summary

Problems solved by technology

[0005] The present invention intends to provide a warning device used in surveying and mapping operations, which can solve the problem of weak warning effect and potential safety hazards of existing warning signs or reflective vests

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