High-performance measuring light curtain system

Abstract

The present invention provides a high-performance measuring light curtain system. The system comprises a transmitter, a receiver and a control terminal, the transmitter and the receiver are connectedthrough a first communication bus, the transmitter comprises a transmitting mainboard and a plurality of transmitting slave boards, and the transmitting mainboard is connected with each transmitting slave board through a second communication bus; the receiver comprises a receiving main board and a plurality of receiving slave boards, and the receiving main board is connected with a control terminal and is connected with each receiving slave board through a third communication bus; each transmitting slave board comprises at least one transmitting tube, each receiving slave board comprises at least one receiving tube, the transmitting slave boards and the receiving slave boards are in one-to-one correspondence in position, and the transmitting tubes and the receiving tubes are in one-to-onecorrespondence in position. The high-performance measuring light curtain system is high in performance, high in versatility and low in cost.

Description

technical field [0001] The invention relates to the field of measuring light curtains, in particular to a high-performance measuring light curtain system. Background technique [0002] The measuring light curtain has the functions of measuring the external dimension, external contour of the object, hole detection, coil deviation correction and so on. Therefore, it is widely used in vehicle separation and classification detection, wood processing, object size detection, logistics packaging detection, spraying detection, metal processing and other industries. Generally speaking, there are different types of measurement light curtain systems for different applications. Low-end products have simple functions and poor performance, while high-end products have good performance but relatively high cost. [0003] The existing measurement light curtains generally use a point-by-point scanning method to read the data of each receiving point. The principle of the low-end light curtain...

AI Technical Summary

Problems solved by technology

[0005] 1. The function of the low-end measurement light curtain is simple, considering the influence of the charging and discharging time of the capacitance between adjacent channels, the response speed is relatively slow

[0006] 2. Pulse synchronization is adopted between transmission and reception, the transmission data volume is small, and the reliability is poor

[0007] 3. The receiving circuit with fixed gain will lead to the contradiction between the blind area of ​​the light curtain and the measurement distance

[0008] 4. The cost of high-end measurement light curtain is high, there are many products for different applications, and the versatility is poor

[0009] At present, there is still a lack of a light curtain product that can meet various types of applications

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