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Testing method and system for correlation light curtain

A test method and test system technology, applied in the direction of testing optical performance, etc., can solve the problems of not performing burn-in test, lack of test system, and inability to know the quality of the light curtain, so as to improve the test efficiency and accuracy.

Active Publication Date: 2021-11-09
广州安协科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to the lack of a reliable test system after the completion of the manufacturing process of the existing through-beam light curtains, generally the through-beam light curtains are energized and aged for a period of time, and abnormalities may occur when checking the circuit from time to time. Block the detection beam of the light curtain for a while, and judge whether the output response of the light curtain is normal through manual observation. Some manufacturers do not even perform aging tests, and sell them directly after powering on
These simple test methods cannot accurately judge the detection performance of the through-beam light curtain, let alone know the complete quality of the through-beam light curtain

Method used

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  • Testing method and system for correlation light curtain
  • Testing method and system for correlation light curtain
  • Testing method and system for correlation light curtain

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] This embodiment provides a test system for an on-beam light curtain, which can automatically perform aging tests on batches of on-beam light curtains to be tested at the same time, greatly improving test efficiency.

[0039] Such as figure 1 As shown, the test system of this embodiment can be integrated in the burn-in cabinet 1, and the burn-in cabinet 1 can be used to test several groups of light curtains to be tested at the same time, thereby improving the test efficiency. The cabinet body of the aging cabinet 1 is provided with several layers, and at least one group of light curtains to be measured can be arranged in each layer of the cabinet body, and a channel 2 is provided in the middle of the counter, so that the internal cause channel 2 of the aging cabinet 1 The existence of the existence is divided into the L area and the R area, and the transmitting end and the receiving end of a group of to-be-tested light curtains are respectively set in the light curtain p...

Embodiment 2

[0046] This embodiment discloses a test method for the light curtain, which is applied in the test system described in the first embodiment; image 3 As shown, the test methods include:

[0047] The numerical control unit sends control instructions to the motion module in response to setting parameters, and controls the target in the motion module to reciprocally block the detection beam generated by the light curtain to be measured in the module to be measured;

[0048] The numerical control unit collects the real-time output state of the to-be-tested light curtain during the movement of the target, and tests the light-passing / blocking judgment performance of the to-be-tested light curtain in combination with the real-time position of the target to obtain the to-be-tested Inspection performance results for through-beam light curtains.

[0049] The numerical control unit described in this embodiment is connected to the touch display device, and the user can view the aging tes...

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Abstract

The invention discloses a testing method and system for a correlation light curtain, the testing method is applied to the testing system, and the system at least comprises a numerical control unit, and a to-be-tested module and a motion module which are connected with the numerical control unit; the testing method comprises the steps that the numerical control unit responds to set parameters and sends a control instruction to the motion module, and a target object in the motion module is controlled to shield a detection light beam generated by a to-be-tested correlation light curtain in a to-be-tested module in a reciprocating mode; the numerical control unit collects the real-time output state of the to-be-tested correlation light curtain in the movement process of the target object, and tests the light transmission / light blocking performance of the to-be-tested correlation light curtain in combination with the real-time position of the target object so as to obtain the test result of the to-be-tested correlation light curtain. According to the invention, the target object is controlled to shield the light generated by the to-be-tested correlation light curtain in a reciprocating manner, so that whether the correlation light curtain breaks down or not is known, the purpose of automatic testing is achieved, and the testing efficiency and accuracy are improved.

Description

technical field [0001] The invention relates to the field of quality detection of through-beam light curtains, in particular to a test method and system for through-beam light curtains. Background technique [0002] At present, the through-beam light curtain is also called safety grating. The light emitter on one side of the through-beam light curtain sends out a light signal, and the receiver on the other side receives the light signal to form a light curtain; when a person or object enters the barrier area of ​​the light curtain, it will Block the detection beam so that the receiver cannot receive the light signal. At this time, the light curtain can issue an alarm prompt or directly trigger the alarm device of other equipment to achieve the effect of machine emergency stop or safety alarm. [0003] However, due to the lack of a reliable test system after the completion of the manufacturing process of the existing through-beam light curtains, generally the through-beam lig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M11/02
CPCG01M11/02
Inventor 蒋丽
Owner 广州安协科技股份有限公司