Switch system of laser module and electronic equipment

Abstract

The utility model provides a switching system of a laser module, which comprises a laser module, a photoelectric switch, a master control module, a self-checking photoelectric sensor and a self-checking detection circuit, the self-checking photoelectric sensor is used for receiving the detection light emitted by the first emitter and generating a detection electric signal; the self-checking detection circuit is connected with the self-checking photoelectric sensor and the main control module; the main control module is used for supplying power to the self-checking detection circuit, and the self-checking detection circuit is used for receiving the detection electric signal and forming a filtering and amplifying signal after filtering and amplifying processing; the main control module is also used for collecting the filtering and amplifying signal, comparing the filtering and amplifying signal with a first set threshold value, and determining whether strong light interference exists or not according to a comparison result; or comparing the filtered and amplified signal with a second set threshold value, and determining whether the interference of the shielding object exists or not according to a comparison result. After the technical scheme is adopted, the user experience and the product stability and reliability are improved.

Description

Technical Field

[0001] The utility model relates to the field of laser measurement, in particular to a switch system and electronic equipment of a laser module. Background Art

[0002] In the laser product and tool industry, conventional buttons, touch buttons or touch screens are generally used to control the machine's power on / off and laser status. These button methods are all contact-type. In actual construction sites, laser module users generally wear gloves, and conventional buttons are generally slightly larger than fingers, so contact-type buttons are inconvenient to operate and are prone to contamination by cement or other debris. Photoelectric switches use photoelectric sensors to control laser modules, and are non-contact buttons.

[0003] In the prior art, the photoelectric switch used to control the laser module to turn on and off or execute the corresponding program is composed of three parts: a transmitter, a photoelectric sensor, and an optical signal amplification detection circuit. Taking the reflective photoelectric switch as an example, when in use, the photoelectric sensor receives infrared and other invisible light reflected from the user's hand, and directly sends the electrical signal processed by infrared and other invisible light to the optical signal amplification detection circuit for filtering and amplification, and outputs the filtered amplified signal to the control module. The control module controls the laser module to perform corresponding operations according to the filtered amplified signal. However, in the actual use of the photoelectric switch, it will encounter interference from strong light sources and obstructions, which will affect the actual use experience.

[0004] Therefore, the utility model provides a photoelectric switch, which can perform self-test before the user formally uses the photoelectric switch to control the laser module by adding a photoelectric sensor connected to the optical signal amplification detection circuit. Specifically, it detects the strong light source in the surrounding environment and the dust and other obstructions on the photoelectric switch to ensure that these two interferences are eliminated before entering the formal detection procedure. The problem of poor actual user experience caused by strong light source interference and obstruction interference during the formal detection process is avoided, and the reliability of the photoelectric switch is improved. Utility Model Content

[0005] In order to overcome the above technical defects, the purpose of the utility model is to provide a switch system and electronic equipment of a laser module.

[0006] Different from the structural design of the photoelectric switch in the prior art that can only directly enter the detection program, the switch system of the laser module provided by the utility model realizes self-checking of interference from strong light sources and interference from obstructions before the user officially uses it, so that measures can be taken to eliminate interference, avoiding the problem of poor user experience caused by interference when the photoelectric switch is officially used, and also improving the reliability and stability of the photoelectric switch.

[0007] The utility model discloses a switch system of a laser module, comprising:

[0008] A laser module, a photoelectric switch and a main control module, wherein the photoelectric switch includes a first transmitter and further includes:

[0009] Self-checking photoelectric sensor and self-checking detection circuit;

[0010] The self-detection photoelectric sensor is used to receive the detection light emitted by the first emitter and generate a detection electrical signal;

[0011] The self-test detection circuit is connected to the self-test photoelectric sensor and the main control module respectively; the main control module is used to supply power to the self-test detection circuit, and the self-test detection circuit is used to receive the detection electrical signal and form a filtered and amplified signal after filtering and amplifying the signal;

[0012] The main control module is also used to collect the filtered amplified signal, and compare the filtered amplified signal with a first set threshold, and determine whether there is strong light interference based on the comparison result; or compare the filtered amplified signal with a second set threshold, and determine whether there is obstruction interference based on the comparison result.

[0013] Furthermore, it also includes: a self-test alarm; the main control module is also connected to the self-test alarm. If it is determined that there is interference from an obstruction or strong light, an alarm instruction is sent to the self-test alarm, triggering the self-test alarm to issue an environmental interference alarm.

[0014] Furthermore, the photoelectric switch also includes: a detection photoelectric sensor, and a signal detection circuit connecting the detection photoelectric sensor and the main control module.

[0015] Furthermore, it comprises: at least two photoelectric switches arranged horizontally.

[0016] The self-test detection circuit comprises:

[0017] The environmental self-detection photoelectric receiving filter circuit, the environmental self-detection photoelectric part amplifying circuit and the environmental self-detection control logic processing circuit are connected in sequence.

[0018] Further, when the power supply voltage of the first transmitter is 3.3V, the first set threshold value is ≥3V.

[0019] Further, when the power supply voltage of the first transmitter is 3.3V, the second set threshold is: 2V-3V.

[0020] Furthermore, the signal detection circuit comprises:

[0021] A first photoelectric receiving filter circuit, a first photoelectric part amplifying circuit and a first control logic processing circuit are connected in sequence.

[0022] Furthermore, the first transmitter includes: a transmission source, a driving circuit and a control circuit.

[0023] The utility model also discloses an electronic device, comprising the switch system of the laser module described in any one of the first aspects of the utility model.

[0024] Compared with the prior art, the above technical solution has the following beneficial effects:

[0025] 1. The photoelectric switch of the laser module can self-check whether it is interfered by strong light or obstructions in the environment.

[0026] 2. Improve the stability and reliability of the photoelectric switch in the laser module, and at the same time improve the user experience of the laser module. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A structural block diagram of a switch system of a laser module in accordance with a preferred embodiment of the utility model;

[0028] Reference numerals:

[0029] 1- Main control module;

[0030] 2-Laser module;

[0031] 3-Photoelectric switch;

[0032] 31- first transmitter;

[0033] 32-Detection photoelectric sensor;

[0034] 33-Signal detection circuit;

[0035] 4-Self-test photoelectric sensor;

[0036] 5-Self-test detection circuit;

[0037] 6-Self-test alarm. DETAILED DESCRIPTION

[0038] The advantages of the present invention are further described below in conjunction with the accompanying drawings and specific embodiments.

[0039] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0040] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. The singular forms of "a", "said" and "the" used in this disclosure and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0041] It should be understood that although the terms first, second, third, etc. may be used in the present disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0042] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0043] In the description of the present utility model, unless otherwise specified and limited, it should be noted that the term "connection" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal connection of two elements. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0044] In the following description, the suffixes such as "module", "component" or "unit" used to represent elements are only used to facilitate the description of the present invention, and they themselves have no specific meaning. Therefore, "module" and "component" can be used interchangeably.

[0045] See also Figure 1 , is a structural block diagram of a switch system of a laser module in accordance with a preferred embodiment of the utility model. The switch system of the laser module 2 of the utility model includes: a photoelectric switch 3, a laser module 2, a self-test photoelectric sensor 4, a self-test detection circuit 5, a self-test alarm 6 and a main control module 1. The laser module can be: a laser level, a laser rangefinder or a laser sweeper, etc.

[0046] The photoelectric switch 3 comprises a first emitter 31, which comprises: an emission source, a driving circuit for driving the emission source and a control circuit for controlling the driving circuit, which may be, for example, an LED lamp, an LED driving circuit and an LED control circuit.

[0047] The self-detection photoelectric sensor 4 is used to receive the detection light emitted by the first emitter 31 and generate a detection electrical signal, wherein the detection light may be invisible light such as infrared light.

[0048] The self-test detection circuit 5 is connected to the self-test photoelectric sensor 4; the self-test detection circuit 5 is used to receive the detection electrical signal and form a filtered and amplified signal after filtering and amplifying. The self-test detection circuit 5 includes: an environmental self-test photoelectric receiving filter circuit connected to the self-test photoelectric sensor 4, an environmental self-test photoelectric part amplifying circuit, and an environmental self-test control logic processing circuit connected to the main control module 1.

[0049] The main control module 1 is connected to the self-checking detection circuit 5, and is used to power the self-checking detection circuit 5, and is also used to collect the filtered amplified signal, and compare the filtered amplified signal with the first set threshold value, and determine whether there is strong light interference according to the comparison result. Strong light, for example: strong light sources such as sunlight and incandescent lamps. Taking the 3.3V power supply system as an example, the first set threshold value of the preset strong light interference is ≥3V. If the filtered amplified signal is greater than the first set threshold value, it is determined that there is strong light interference.

[0050] Alternatively, the filtered amplified signal is compared with a second set threshold value, and whether there is interference from an obstruction is determined based on the comparison result. Taking a 3.3V power supply system as an example, the second set threshold value is: 2V-3V. If the filtered amplified signal is greater than the second set threshold value, it is determined that there is interference from an obstruction.

[0051] Different from the photoelectric switch 3 control system in the prior art that directly enters the detection program, the technical solution provided by the utility model, through the self-detection detection circuit 5 connected to the main control module 1, and the self-detection photoelectric sensor 4, allows the system to realize self-detection of environmental interference before the formal detection program, and provide a reference for whether there is environmental interference, so as to eliminate environmental interference before entering the formal detection program; avoid the problem of poor user experience caused by environmental interference, improve user experience, and at the same time improve the reliability and stability of the system.

[0052] Based on the above embodiment, in order to intuitively provide the user with a judgment result signal of moderate environmental interference during the self-check process, preferably, a self-check alarm 6 is set to be connected to the main control module 1. If it is determined that there is interference from an obstruction or strong light interference, an alarm instruction is sent to the self-check alarm 6 to trigger the self-check alarm 6 to alarm for environmental interference. Specifically, the self-check alarm 6 can send an alarm of excessive light environment by controlling an indicator light or a buzzer, so as to remind the user that the current ambient light exceeds the usage range or there is an obstruction.

[0053] Based on the above embodiment, preferably, shading material may be added around the photoelectric switch 3 to avoid strong light interference.

[0054] The photoelectric switch 3 also includes a detection photoelectric sensor 32 and a signal detection circuit 33 respectively connected to the detection photoelectric sensor 32 and the main control module 1. The main control module 1 is also used to supply power to the signal detection circuit 33. The main control module 1 can also serve as a power supply for the detection photoelectric sensor 32. The signal detection circuit 33 includes: a photoelectric receiving filter circuit, a photoelectric part amplification circuit and a control logic processing circuit connected in sequence.

[0055] After the switch system of the laser module 2 performs self-inspection, if strong light interference or obstruction interference is found in the environment, the system enters the formal detection procedure after eliminating the interference; if no strong light interference or obstruction interference is found in the environment, the system directly enters the formal detection procedure. After entering the formal detection procedure, the detection photoelectric sensor 32 receives the detection light of the first transmitter 31, generates an electrical signal and then sends it to the signal detection circuit 33. After filtering and amplification by the signal detection circuit 33, a filtered and amplified signal is obtained. The main control module 1 collects the filtered and amplified signal, and generates a control instruction based on the filtered and amplified signal to control the laser module 2 to execute the control instruction, and perform free control of the switch or wake-up function.

[0056] It can be seen that the technical solution provided by the utility model, since the self-checking photoelectric sensor 4 and the self-checking detection circuit 5 are introduced into the original photoelectric switch 3, not only the self-checking of environmental interference is realized before entering the formal detection, but also this setting makes the main control module 1 not generate the command to control the laser module 2 to perform the corresponding operation during the self-checking process, so the problem of misoperation will not occur when detecting environmental interference. At the same time, the user experience and the reliability and stability of the system are improved.

[0057] Based on the above embodiment, in another preferred embodiment of the present invention, the switch system of the laser module 2 includes at least two horizontally arranged photoelectric switches 3 for receiving detection light at different positions, wherein the connection relationship between each photoelectric switch and the main control module can be referred to Figure 1 . The main control module 1 can judge the left sliding gesture or the right sliding gesture by using the time difference of receiving the light signal of multiple photoelectric sensors, and control the laser module 2 to execute the lighting operation mode or the flashing operation mode according to the judgment result. Or according to the strength of the light signal received by the two detection photoelectric sensors 32, the distance gesture of the vertical photoelectric sensor is gradually approached, and the laser module 2 is controlled to execute the power on and off function according to the judgment result. The computer software can judge the distance gesture of the vertical photoelectric sensor is gradually approached according to the strength of the light signal received by the two photoelectric sensors, and control the laser module 2 to execute the wake-up function according to the judgment result, thereby realizing the non-contact interaction between the user and the photoelectric switch 3.

[0058] It should be noted that in the technical solution of the present application, each module or unit itself may also have corresponding peripheral circuits. In this embodiment, only the connection relationship or functional relationship between the modules or units is emphasized, and other irrelevant parts are not explained.

[0059] The technical solution provided by the utility model realizes the self-detection of strong light interference and obstruction interference in the working environment of the photoelectric switch by using the self-detection photoelectric sensor, the self-detection detection circuit and the main control module. Since the photoelectric switch in the laser module is not interfered by the environment during the formal detection, the user experience of the laser module is improved, and the stability and reliability of the system are improved.

[0060] Another aspect of the present invention further provides an electronic device, comprising the switch system of the laser module described in any one of the first aspects of the present invention.

[0061] It should be noted that the embodiments of the present invention have better practicability and do not impose any form of limitation on the present invention. Any technician familiar with the field may use the technical content disclosed above to change or modify it into an equivalent effective embodiment, but it does not deviate from the content of the technical solution of the present invention. Any modifications or equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A switching system for a laser module, comprising: A laser module, a photoelectric switch and a main control module, wherein the photoelectric switch comprises a first transmitter, characterized in that: Also includes: Self-checking photoelectric sensor and self-checking detection circuit; The self-detection photoelectric sensor is used to receive the detection light emitted by the first emitter and generate a detection electrical signal; The self-test detection circuit is connected to the self-test photoelectric sensor and the main control module respectively; the main control module is used to supply power to the self-test detection circuit, and the self-test detection circuit is used to receive the detection electrical signal and form a filtered and amplified signal after filtering and amplifying the signal; The main control module is also used to collect the filtered amplified signal, and compare the filtered amplified signal with a first set threshold, and determine whether there is strong light interference based on the comparison result; or compare the filtered amplified signal with a second set threshold, and determine whether there is obstruction interference based on the comparison result.

2. The switch system of the laser module according to claim 1, characterized in that: Also includes: self-test alarm; The main control module is also connected to the self-check alarm. If it is determined that there is interference from an obstruction or strong light, an alarm instruction is sent to the self-check alarm to trigger the self-check alarm to sound an environmental interference alarm.

3. The switch system of the laser module according to claim 1, characterized in that: The photoelectric switch further includes: a detection photoelectric sensor, and a signal detection circuit respectively connected to the detection photoelectric sensor and the main control module.

4. The switch system of the laser module according to claim 1, characterized in that: include: At least two of the photoelectric switches are arranged horizontally.

5. The switch system of the laser module according to claim 1, characterized in that: When the supply voltage of the first transmitter is 3.3V, the first set threshold value is ≥3V.

6. The switch system of the laser module according to claim 1, characterized in that: When the supply voltage of the first transmitter is 3.3V, the second set threshold is: 2V-3V.

7. The switch system of the laser module according to claim 1, characterized in that: The self-test detection circuit comprises: The environmental self-detection photoelectric receiving filter circuit, the environmental self-detection photoelectric part amplifying circuit and the environmental self-detection control logic processing circuit are connected in sequence.

8. The switch system of the laser module according to claim 1, characterized in that: The first transmitter includes: a transmission source, a driving circuit for driving the transmission source, and a control circuit for controlling the driving circuit.

9. An electronic device, characterized in that: A switch system comprising the laser module according to any one of claims 1 to 8.

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