Controlled device and state detection circuit of safe edge contact sensor thereof

A state detection and controlled device technology, which is applied in the direction of transmitting sensing components, converting sensor output, and measuring devices by using electric/magnetic devices, can solve problems such as difficulty in the upper system and inconvenient troubleshooting for staff, and achieve reliable security The effect of reliability, convenient troubleshooting, and reliable guarantee

Pending Publication Date: 2021-10-08
ZHEJIANG GUOZI ROBOT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because it cannot be detected by the controller, when the number of safety edge sensors is large, it is difficult for the upper system to

Method used

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  • Controlled device and state detection circuit of safe edge contact sensor thereof
  • Controlled device and state detection circuit of safe edge contact sensor thereof
  • Controlled device and state detection circuit of safe edge contact sensor thereof

Examples

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Example Embodiment

[0037] The core of the present invention is to provide a structural schematic of a state detecting circuit of a safe touch sensor, which can ensure the reliability, rapidity of the status detection of the safety touch sensor, and facilitate convenient troubleshooting, and can be The security touch sensor is triggered as a discontinuous state, further improving the security of the program.

[0038]In order to better understand the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are merely the embodiments of the invention, not all of the embodiments. Based on the embodiments of the present invention, there are all other embodiments obtained without making creative labor without making creative labor premises.

[0039] Please refer to figure 1 , figure 1 A structural schematic diagram of a state detecting circuit of a safe touch sensor in the present i...

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Abstract

The invention discloses a controlled device and a state detection circuit of a safe edge contact sensor thereof. The state detection circuit comprises a first relay, a trigger circuit and a controller. When the safety edge contact sensor is in a normal state, the first relay is in a non-pull-in state, a first controlled branch circuit of the first relay is connected in series in an electrical safety loop of a controlled device, and a second controlled branch circuit of the first relay is connected in series in a detection loop of the controller, so that the controller determines that the first relay is in the non-pull-in state at present. When the safety contact edge sensor is in an open circuit state or in a low-resistance triggering state after extrusion, the control coil is in a pull-in state, the first controlled branch is pulled in by the control coil so that the electrical safety loop can be disconnected, and the second controlled branch is pulled in by the control coil so that the controller can determine that the first relay is in the pull-in state at present. According to the scheme, reliability and rapidity of state detection of the safety edge contact sensor are guaranteed, troubleshooting can be facilitated, and protection can be triggered when the safety edge contact sensor is in an open circuit state.

Description

technical field [0001] The invention relates to the technical field of circuit design, in particular to a state detection circuit of a controlled device and a safety edge sensor thereof. Background technique [0002] Safety edge sensors are fixed on the edges of moving parts that may be squeezed and sheared, such as mobile robots, machine tool workbenches, and electric doors. When the safety edge sensor is triggered by extrusion, the controlled The device can quickly enter the safety protection state. [0003] A current design scheme is to collect the resistance value at both ends of the safety edge sensor through a resistance sampling circuit, and then judge the state of the safety edge sensor by a single-chip microcomputer, thereby performing on-off control of the electrical safety circuit. Or use a special controller provided by the manufacturer. The state signal of the safety edge sensor is drawn out by two wires. When the safety edge sensor is squeezed, the state conta...

Claims

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Application Information

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IPC IPC(8): G01D5/165
CPCG01D5/165
Inventor 关晓曼曹婉瑞张国亮
Owner ZHEJIANG GUOZI ROBOT TECH
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