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Method for robot safety level assessment

A safety level, robot technology, applied in the field of level evaluation, can solve the problem of immediate stop of dangerous movements of the machine, and achieve the effect of promoting safe production and improving the level of intrinsic safety.

Active Publication Date: 2016-11-16
EFORT INTELLIGENT EQUIP CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

At present, there are two main protection methods commonly used for machines: one is to prevent relevant personnel from entering the dangerous area during the dangerous action of the machine, and the other is to stop the dangerous action of the machine immediately once the personnel enters the dangerous area.

Method used

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  • Method for robot safety level assessment

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Embodiment

[0042] The safety PLC (L) module used in the robot control cabinet is PSR-SPP-24DC / TS / S, the PLs level is e, and the safety integrity level is SIL level SIL3; the safety output module (O) module in the control cabinet is PSR-SCP-24DC / FSP / 2X1 / 1X2, PLs level is e, SIL level is SIL3.

[0043] If this set of robots is used to integrate applications, and the performance level (PLr) of the complete set of equipment is d, then the number of input devices (safety door switches, safety light curtains, safety mats) at this time is 3, refer to figure 1 In the table in , the performance level PL found is at least d.

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Abstract

The invention discloses a method for robot safety level assessment. The method comprises the following steps that 1, according to an input module in a robot integrated system and a logical control module and an output module in a control cabinet, a minimum safety performance control unit PLs is determined; 2, the number of input units Nlow is determined; and 3, the overall safety performance level PLr is determined. According to the method, through assessment of the robot safety level, the robot safety level can be assessed in the design early stage, thus risks are reduced or eliminated in the design source, the intrinsic safety level of a machine is improved, and safe production of the manufacturing industry is facilitated. The integral safety level of a set of system can be assessed vividly and digitally, and a feasible assessment tool is provided for a designer.

Description

technical field [0001] The invention relates to the technical field of industrial robots, in particular to a method for evaluating robot safety levels. Background technique [0002] In the manufacturing sector, technical measures must be taken to properly protect personnel working near robots. The best protection is fully automated or robotic, keeping people out of the danger zone. However, the automation level of machinery and equipment in our country is not high, and the application of automation technology is not very popular. At present, there are two main protection methods commonly used for machines: one is to prevent relevant personnel from entering the dangerous area during the dangerous action of the machine, and the other is to stop the dangerous action of the machine immediately once a person enters the dangerous area. In order to accurately meet this purpose, a large number of safety functions need to be designed. For example, once the machine is abnormal, it i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25J9/00B25J19/00
CPCB25J9/00B25J19/0095
Inventor 未红福罗爱华柳贺
Owner EFORT INTELLIGENT EQUIP CO LTD
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