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Capacitive sensor and mower

A technology of capacitive sensors and lawn mowers, which is applied in the direction of harvesters, cutters, electromagnetic measuring devices, etc., can solve the problems of reducing the accuracy of grass detection

Active Publication Date: 2019-05-07
POSITEC POWER TOOLS (SUZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the signal detected by the traditional capacitive sensor is transmitted to the signal processing circuit, the wire is easily interfered by other signal wires and conductors, thereby reducing the accuracy of the capacitive sensor in detecting grass heights.

Method used

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  • Capacitive sensor and mower
  • Capacitive sensor and mower
  • Capacitive sensor and mower

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Embodiment Construction

[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0028] The capacitive sensor in one embodiment is used to convert the measured physical quantity or mechanical quantity into capacitance variation, so as to realize the detection of the measured physical quantity or mechanical quantity by detecting the capacitance variation. For example, in one embodiment, a capacitive sensor is used to detect the height of the object to be measured. The object to be tested may be vegetation. In this embodiment, the object to be tested is grassland as an example for illustration. Capacitive sensors are used to detect grass height in grass fields. see figure 1 ,...

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PUM

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Abstract

The invention relates to a capacitive sensor and a mower, wherein the capacitive sensor comprises a sensor probe, a connection wire and a signal processing circuit, wherein the signal processing circuit is connected with the sensor probe through the connection wire; the connection wire comprises a sensor signal layer, and a first insulating layer, a shielding signal layer and a second insulting layer which cover the outer surface of the sensor signal layer; a sensor signal port and a shielding signal port are formed in the signal processing circuit; the sensor signal port is used for detectinga sensor signal transmitted by the sensor signal layer; the shielding signal port is connected with the shielding signal layer; the signal processing circuit is used for controlling the level of signals in the sensor signal layer to be consistent with that of signals in the shielding signal port. The capacitive sensor helps improve detection accuracy.

Description

technical field [0001] The invention relates to the technical field of electrical tools, in particular to a capacitance sensor and a lawnmower. Background technique [0002] In order to reduce the idling of the lawn mower and improve work efficiency, most smart lawn mowers are equipped with capacitive sensors. The capacitive sensor detects the height of the lawn to determine whether it is a bush to be mowed, and then controls the working condition of the mowing motor. However, when the signal detected by the traditional capacitive sensor is transmitted to the signal processing circuit, the wire is easily interfered by other signal wires and conductors, thereby reducing the accuracy of the capacitive sensor in detecting grass height. Contents of the invention [0003] Based on this, it is necessary to provide a capacitive sensor and a lawn mower capable of improving detection accuracy. [0004] A capacitive sensor, used to detect an object to be measured, includes a senso...

Claims

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Application Information

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IPC IPC(8): A01D34/412G01B7/06B32B27/06B32B25/04
Inventor 董永明
Owner POSITEC POWER TOOLS (SUZHOU) CO LTD