WO2022166311A1 - Laser level - Google Patents
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- WO2022166311A1 WO2022166311A1 PCT/CN2021/131881 CN2021131881W WO2022166311A1 WO 2022166311 A1 WO2022166311 A1 WO 2022166311A1 CN 2021131881 W CN2021131881 W CN 2021131881W WO 2022166311 A1 WO2022166311 A1 WO 2022166311A1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
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- the invention relates to the technical field of laser instruments, in particular to a laser level.
- Laser level is a kind of high-precision equipment for construction.
- the laser level on the market also known as laser line thrower
- All technologies have disadvantages such as large size, high cost, risk of triggering failure, difficulty in calibration, and inability to provide equipment status information.
- the laser level receives a large impact (such as impact, drop)
- the accuracy or function of the equipment will be affected, so the user needs to be reminded to perform the corresponding calibration, and the laser level in the prior art cannot be given after being impacted. The user prompts accordingly.
- the laser level in the prior art is usually reminded by an indicator light when the inclination exceeds the range, and such a reminder is easily ignored by the user.
- the purpose of the present invention is to provide a laser level that is small in size, low in cost, and can effectively alert the user when it is tilted or impacted.
- the invention discloses a laser level, comprising a casing and a laser emitting module, wherein the laser emitting module is at least partially located in the casing,
- the laser level also includes a sensor and a control module
- the sensor includes an acceleration sensor and/or a gyroscope sensor, the sensor is fixedly connected to the housing, and the control module is connected to the sensor and the laser emission module;
- the control module is used to determine whether the inclination angle of the laser level or the impact received exceeds the set threshold according to the detection result of the sensor, and control the laser emission module to change the working state when it is judged that the set threshold is exceeded.
- the change of the working state is laser flashing or laser off.
- the laser level further comprises a status indicator light and/or a speaker, and the status indicator light and/or the speaker is connected to the control module;
- the control module is used to determine whether the inclination angle of the laser level or the impact received exceeds the set threshold according to the detection result of the sensor, and when it is judged that the set threshold is exceeded, the control status indicator light is always on or flashes, and/or , control the speaker to send out an alarm tone.
- the set threshold of the tilt angle of the laser level is 3°.
- the laser level meter further includes a communication module, and the communication module is connected with the control module and external devices.
- the communication module includes one or more of a Bluetooth communication module, a WIFI communication module and an infrared communication module.
- control module is a single-chip microcomputer.
- the laser level further includes a swinging body inclined with gravity, and the laser emitting module is mounted on the swinging body.
- the laser emitting module is controlled to change the working state (such as flashing or turning off the emitted laser) to remind the user, thereby Users can be reminded more intuitively;
- a communication module connected to an external device is provided, so that when the tilt angle or the shock received exceeds the set threshold, a reminder message can be sent to the external device; the measured angle information can also be sent to the external device.
- FIG. 1 is a schematic structural diagram of a laser level in an embodiment of the present invention.
- first, second, third, etc. may be used in this disclosure to describe various pieces of information, such information should not be limited by these terms. These terms are only used to distinguish the same type of information from each other.
- 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, without departing from the scope of the present disclosure.
- word "if” as used herein can be interpreted as "at the time of” or "when” or "in response to determining.”
- the laser level includes a casing, a laser emission module, a sensor and a control module.
- the laser emitting module is at least partially contained in the housing, preferably, a swing body inclined with gravity is provided in the housing, and the laser emitting module is fixedly mounted on the swing body.
- the laser emitting module is used for emitting laser light.
- the sensor includes an acceleration sensor and/or a gyroscope sensor, the sensor is fixedly connected to the housing, and the control module is connected to the sensor, and is used for determining the tilt angle of the laser level or receiving the sensor according to the detection result of the sensor. whether the shock exceeds the set threshold.
- the control module may be a single-chip microcomputer. How to use the acceleration sensor and/or the gyro sensor to detect the tilt angle and determine the impact is well known to those skilled in the art, and is not an improvement point of the present application, and will not be described here.
- the senor is only an acceleration sensor, in other embodiments, the sensor may only be a gyro sensor, and in other embodiments, the sensor may include both an acceleration sensor and a gyro sensor , the control module performs the detection of the tilt angle and the judgment of the impact according to the detection results of the two.
- the acceleration sensor and/or the gyroscope sensor is used to determine the inclination angle of the instrument and the impact received.
- the structure is simplified, the volume is reduced, and the cost of the device is reduced. And the measurement accuracy is higher.
- the consistency of the compensation range of the laser level will be more uniform, and because the zero position and the angle threshold can be modified and adjusted by software, it is convenient and quick, which greatly improves the reliability of the instrument. manufacturability and maintainability.
- the control module is also connected with the laser emitting module, and controls the laser emitting module to change the working state when it is determined that the set threshold is exceeded.
- the set threshold of the inclination angle is preferably 3°
- the set threshold of the impact is preferably the impact generated when the laser level falls freely on the hard ground from a height of 1 meter, which can be determined according to whether the detected impact acceleration reaches the threshold and duration to make a corresponding judgment.
- the control module controls the laser emitted by the laser emission module to flash or turn off, so as to give the user the most intuitive prompt, so that the user can check and adjust in time.
- the laser level further includes a status indicator light and/or a speaker, and the status indicator light and/or the speaker is connected to the control module.
- the control module determines that the inclination angle or the impact of the laser level exceeds the set threshold, the control status indicator light is always on or flashes, and/or the speaker is controlled to emit an alarm sound to give an alarm.
- the alarm state of the instrument will be restored after the device state is changed (after the device is adjusted to the normal state) or after manual operation.
- the laser level meter further includes a communication module, and the communication module is connected with the control module and external devices.
- the communication module includes one or more of a Bluetooth communication module, a WIFI communication module and an infrared communication module.
- the communication module can be a mobile terminal such as the user's mobile phone, so that the user can timely detect the abnormal situation of the laser level and Corresponding processing is performed; the inclined angle information can also be sent to an external device, so that the user can adjust the laser level according to the angle information, so as to improve the accuracy of the instrument's line casting.
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Abstract
Description
本发明涉及激光仪器技术领域，尤其涉及一种激光水平仪。The invention relates to the technical field of laser instruments, in particular to a laser level.
激光水平仪是一种建筑用高精度设备，目前市场上的激光水平仪(也可称为激光投线仪)主要通过弹簧接触式或光电感应式的方式来提供倾斜超范围时的报警功能，但是这些技术都存在着体积大、成本高、存在触发失效的风险、校正困难且无法提供设备状态信息等缺点。且激光水平仪在收到较大冲击(如撞击、跌落)时，设备精度或功能会收到影响，因此需要提醒用户进行相应的校验，而现有技术中的激光水平仪无法在受到冲击后给予用户相应提示。Laser level is a kind of high-precision equipment for construction. At present, the laser level on the market (also known as laser line thrower) mainly provides the alarm function when the tilt is out of range by means of spring contact or photoelectric induction. All technologies have disadvantages such as large size, high cost, risk of triggering failure, difficulty in calibration, and inability to provide equipment status information. In addition, when the laser level receives a large impact (such as impact, drop), the accuracy or function of the equipment will be affected, so the user needs to be reminded to perform the corresponding calibration, and the laser level in the prior art cannot be given after being impacted. The user prompts accordingly.
此外，现有技术中的激光水平仪在倾斜超范围时通常通过指示灯进行提醒，这样的提醒方式容易被使用人员忽略。In addition, the laser level in the prior art is usually reminded by an indicator light when the inclination exceeds the range, and such a reminder is easily ignored by the user.
因此，需要开发一种体积小、成本低、在倾斜或受到冲击时能够有效提醒用户的激光水平仪。Therefore, there is a need to develop a laser level that is small in size, low in cost, and can effectively alert the user when it is tilted or impacted.
发明内容SUMMARY OF THE INVENTION
为了克服上述技术缺陷，本发明的目的在于提供一种体积小、成本低、在倾斜或受到冲击时能够有效提醒用户的激光水平仪。In order to overcome the above technical defects, the purpose of the present invention is to provide a laser level that is small in size, low in cost, and can effectively alert the user when it is tilted or impacted.
本发明公开了一种激光水平仪，包括壳体和激光发射模块，所述激光发射模块至少部分地位于所述壳体中，The invention discloses a laser level, comprising a casing and a laser emitting module, wherein the laser emitting module is at least partially located in the casing,
所述激光水平仪还包括传感器和控制模块；The laser level also includes a sensor and a control module;
所述传感器包括加速度传感器和/或陀螺仪传感器，所述传感器固定连接于所述壳体，所述控制模块与所述传感器和激光发射模块连接；The sensor includes an acceleration sensor and/or a gyroscope sensor, the sensor is fixedly connected to the housing, and the control module is connected to the sensor and the laser emission module;
所述控制模块用于根据传感器的检测结果，判定激光水平仪的倾斜角度或受到的冲 击是否超过设定阈值，并在判定超过设定阈值时控制所述激光发射模块改变工作状态。The control module is used to determine whether the inclination angle of the laser level or the impact received exceeds the set threshold according to the detection result of the sensor, and control the laser emission module to change the working state when it is judged that the set threshold is exceeded.
优选地，所述工作状态的改变为激光闪烁或激光关闭。Preferably, the change of the working state is laser flashing or laser off.
优选地，所述激光水平仪还包括状态指示灯和/或扬声器，所述状态指示灯和/或扬声器与所述控制模块连接；Preferably, the laser level further comprises a status indicator light and/or a speaker, and the status indicator light and/or the speaker is connected to the control module;
所述控制模块用于根据传感器的检测结果，判定激光水平仪的倾斜的角度或受到的冲击是否超过设定阈值，并在判定超过设定阈值时，控制状态指示灯常亮或闪烁，和/或，控制扬声器发出报警提示音。The control module is used to determine whether the inclination angle of the laser level or the impact received exceeds the set threshold according to the detection result of the sensor, and when it is judged that the set threshold is exceeded, the control status indicator light is always on or flashes, and/or , control the speaker to send out an alarm tone.
优选地，所述激光水平仪倾斜角度的设定阈值为3°。Preferably, the set threshold of the tilt angle of the laser level is 3°.
优选地，所述激光水平仪还包括通信模块，所述通信模块与所述控制模块和外部设备连接。Preferably, the laser level meter further includes a communication module, and the communication module is connected with the control module and external devices.
优选地，所述通信模块包括蓝牙通信模块、WIFI通信模块和红外通信模块中的一种或多种。Preferably, the communication module includes one or more of a Bluetooth communication module, a WIFI communication module and an infrared communication module.
优选地，所述控制模块为单片机。Preferably, the control module is a single-chip microcomputer.
优选地，所述激光水平仪还包括随着重力倾斜的摆动体，所述激光发射模块安装于所述摆动体上。Preferably, the laser level further includes a swinging body inclined with gravity, and the laser emitting module is mounted on the swinging body.
采用了上述技术方案后，与现有技术相比，具有以下有益效果：After adopting the above-mentioned technical scheme, compared with the prior art, it has the following beneficial effects:
1、通过传感器(包括加速度传感器和/或陀螺仪传感器)获取加速度和/或角速率来判断倾斜角度和受到的冲击，替代了现有技术中弹簧接触式或光电感应式的方式，简化了结构，缩小了体积，降低了装置的成本，且测量精度更高；1. Acquire acceleration and/or angular rate through sensors (including acceleration sensors and/or gyroscope sensors) to determine the tilt angle and the impact received, which replaces the spring contact type or photoelectric induction type in the prior art, and simplifies the structure , reducing the volume, reducing the cost of the device, and the measurement accuracy is higher;
2、通过控制模块连接传感器和激光发射模块，在倾斜角度或受到的冲击超出设定阈值时，控制激光发射模块改变工作状态(例如使发射的激光闪烁或关闭)，来对用户进行提醒，从而可以更直观地给予用户提醒；2. Connect the sensor and the laser emitting module through the control module. When the tilt angle or the shock received exceeds the set threshold, the laser emitting module is controlled to change the working state (such as flashing or turning off the emitted laser) to remind the user, thereby Users can be reminded more intuitively;
3、设置有外部设备连接的通信模块，从而可以在倾斜角度或受到的冲击超出设定阈值时，向外部设备发出提醒信息；也可以将测量的角度信息发送到外部设备。3. A communication module connected to an external device is provided, so that when the tilt angle or the shock received exceeds the set threshold, a reminder message can be sent to the external device; the measured angle information can also be sent to the external device.
图1本发明一实施例中激光水平仪的结构示意图。FIG. 1 is a schematic structural diagram of a laser level in an embodiment of the present invention.
以下结合附图与具体实施例进一步阐述本发明的优点。The advantages of the present invention are further described below with reference to the accompanying drawings and specific embodiments.
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本公开的一些方面相一致的装置和方法的例子。Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. When the following description refers to the drawings, the same numerals in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the illustrative examples below are not intended to represent all implementations consistent with this disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as recited in the appended claims.
在本公开使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本公开。在本公开和所附权利要求书中所使用的单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。还应当理解，本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to limit the present disclosure. As used in this disclosure and the appended claims, the singular forms "a," "the," and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It will also be understood that the term "and/or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.
应当理解，尽管在本公开可能采用术语第一、第二、第三等来描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开。例如，在不脱离本公开范围的情况下，第一信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。取决于语境，如在此所使用的词语“如果”可以被解释成为“在……时”或“当……时”或“响应于确定”。It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various pieces of information, such information should not be limited by these terms. These terms are only used to distinguish the same type of information from each other. For example, 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, without departing from the scope of the present disclosure. Depending on the context, the word "if" as used herein can be interpreted as "at the time of" or "when" or "in response to determining."
在本发明的描述中，需要理解的是，术语“纵向”、“横向”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。In the description of the present invention, it should be understood that the terms "portrait", "horizontal", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientations or positional relationships indicated by "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than An indication or implication that the referred device or element must have a particular orientation, be constructed and operate in a particular orientation, is not to be construed as a limitation of the invention.
在本发明的描述中，除非另有规定和限定，需要说明的是，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是机械连接或电连接，也可以是两个元件内部的连通，可以是直接相连，也可以通过中间媒介间接相连，对于本领域的普通技术人员而言，可以根据具体情况理解上述术语的具体含义。In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a mechanical connection or an electrical connection, or two The internal communication between the elements may be directly connected or indirectly connected through an intermediate medium, and those of ordinary skill in the art can understand the specific meanings of the above terms according to specific situations.
在后续的描述中，使用用于表示元件的诸如“模块”、“部件”或“单元”的后缀仅为了有利于本发明的说明，其本身并没有特定的意义。因此，“模块”与“部件”可以混合地使用。In the following description, suffixes such as 'module', 'component' or 'unit' used to represent elements are used only to facilitate the description of the present invention, and have no specific meaning per se. Therefore, "module" and "component" can be used interchangeably.
参见附图1，为本发明一实施例中激光水平仪的结构示意图。所述激光水平仪包括壳体、激光发射模块、传感器和控制模块。Referring to FIG. 1 , it is a schematic structural diagram of a laser level in an embodiment of the present invention. The laser level includes a casing, a laser emission module, a sensor and a control module.
所述激光发射模块至少部分包含在所述壳体中，优选地，所述壳体内设置有随着重力倾斜的摆动体，所述激光发射模块固定安装于所述摆动体上。所述激光发射模块用于发出激光光线。The laser emitting module is at least partially contained in the housing, preferably, a swing body inclined with gravity is provided in the housing, and the laser emitting module is fixedly mounted on the swing body. The laser emitting module is used for emitting laser light.
所述传感器包括加速度传感器和/或陀螺仪传感器，所述传感器固定连接于所述壳体，所述控制模块与所述传感器连接，用于根据传感器的检测结果，判定激光水平仪的倾斜角度或受到的冲击是否超过设定阈值。所述控制模块可以为单片机。如何利用加速度传感器和/或陀螺仪传感器进行倾斜角度检测和判断冲击对于本领域技术人员是公知的，并非本申请的改进点，这里不再展开说明。在本实施例中，所述传感器仅为加速度传感器，在其它一些实施例中，所述传感器可以仅为陀螺仪传感器，在另一些实施例中，所述传感器可以同时包括加速度传感器和陀螺仪传感器，控制模块根据两者的检测结果进行倾斜角度的检测和冲击的判断。通过加速度传感器和/或陀螺仪传感器来判断仪器倾斜角度和受到的冲击，相较于现有技术中弹簧接触式或光电感应式的方式，简化了结构，缩小了体积，降低了装置的成本，且测量精度更高。且使用加速度传感器和/或陀螺仪传感器后，激光水平仪的补偿范围的一致性会更加的均匀，且因为零位和角度阈值可以通过软件来进行修改和调整，方便快捷，大大提高了仪器的可制造性和维修性。The sensor includes an acceleration sensor and/or a gyroscope sensor, the sensor is fixedly connected to the housing, and the control module is connected to the sensor, and is used for determining the tilt angle of the laser level or receiving the sensor according to the detection result of the sensor. whether the shock exceeds the set threshold. The control module may be a single-chip microcomputer. How to use the acceleration sensor and/or the gyro sensor to detect the tilt angle and determine the impact is well known to those skilled in the art, and is not an improvement point of the present application, and will not be described here. In this embodiment, the sensor is only an acceleration sensor, in other embodiments, the sensor may only be a gyro sensor, and in other embodiments, the sensor may include both an acceleration sensor and a gyro sensor , the control module performs the detection of the tilt angle and the judgment of the impact according to the detection results of the two. The acceleration sensor and/or the gyroscope sensor is used to determine the inclination angle of the instrument and the impact received. Compared with the spring contact type or photoelectric induction type in the prior art, the structure is simplified, the volume is reduced, and the cost of the device is reduced. And the measurement accuracy is higher. And after using the acceleration sensor and/or the gyroscope sensor, the consistency of the compensation range of the laser level will be more uniform, and because the zero position and the angle threshold can be modified and adjusted by software, it is convenient and quick, which greatly improves the reliability of the instrument. manufacturability and maintainability.
所述控制模块还与所述激光发射模块连接，在判定超过设定阈值时控制所述激光发射模块改变工作状态。具体的，倾斜角度的设定阈值优选为3°，受到冲击的设定阈值优选为激光水平仪自1米高度自由跌落在硬质地面时产生的冲击，可以根据检测到的冲击加速度是否达到阈值以及持续的时间来进行相应判定。在判定超过设定阈值时，控制模块控制激光发射模块发射的激光进行闪烁或关闭，从而可以给予用户最直观的提示，以便用户及时进行校验、调整。The control module is also connected with the laser emitting module, and controls the laser emitting module to change the working state when it is determined that the set threshold is exceeded. Specifically, the set threshold of the inclination angle is preferably 3°, and the set threshold of the impact is preferably the impact generated when the laser level falls freely on the hard ground from a height of 1 meter, which can be determined according to whether the detected impact acceleration reaches the threshold and duration to make a corresponding judgment. When it is determined that the set threshold is exceeded, the control module controls the laser emitted by the laser emission module to flash or turn off, so as to give the user the most intuitive prompt, so that the user can check and adjust in time.
优选地，所述激光水平仪还包括状态指示灯和/或扬声器，所述状态指示灯和/或扬声器与所述控制模块连接。所述控制模块在判定激光水平仪的倾斜角度或受到的冲击超过设定阈值时，控制状态指示灯常亮或闪烁，和/或，控制扬声器发出报警提示音，来进行报警。仪器的报警状态在可以设备状态变更后(设备调整至正常状态后)或人为操作后会恢复。Preferably, the laser level further includes a status indicator light and/or a speaker, and the status indicator light and/or the speaker is connected to the control module. When the control module determines that the inclination angle or the impact of the laser level exceeds the set threshold, the control status indicator light is always on or flashes, and/or the speaker is controlled to emit an alarm sound to give an alarm. The alarm state of the instrument will be restored after the device state is changed (after the device is adjusted to the normal state) or after manual operation.
优选地，所述激光水平仪还包括通信模块，所述通信模块与所述控制模块和外部设备连接。优选地，所述通信模块包括蓝牙通信模块、WIFI通信模块和红外通信模块中的一种或多种。通过所述通信模块，可以在倾斜角度或受到的冲击超出设定阈值时，向外部设备发出提醒信息，外部设备可以为用户的手机等移动终端，从而使用户可以及时发现激光水平仪的异常情况并进行相应处理；也可以将倾斜的角度信息发送到外部设备，以便用户根据该角度信息对激光水平仪进行相应调整，以提高仪器投线的精度。Preferably, the laser level meter further includes a communication module, and the communication module is connected with the control module and external devices. Preferably, the communication module includes one or more of a Bluetooth communication module, a WIFI communication module and an infrared communication module. Through the communication module, when the tilt angle or the impact exceeds the set threshold, a reminder message can be sent to the external device, and the external device can be a mobile terminal such as the user's mobile phone, so that the user can timely detect the abnormal situation of the laser level and Corresponding processing is performed; the inclined angle information can also be sent to an external device, so that the user can adjust the laser level according to the angle information, so as to improve the accuracy of the instrument's line casting.
应当注意的是，本发明的实施例有较佳的实施性，且并非对本发明作任何形式的限 制，任何熟悉该领域的技术人员可能利用上述揭示的技术内容变更或修饰为等同的有效实施例，但凡未脱离本发明技术方案的内容，依据本发明的技术实质对以上实施例所作的任何修改或等同变化及修饰，均仍属于本发明技术方案的范围内。It should be noted that the embodiments of the present invention have better practicability, and do not limit the present invention in any form, and any person skilled in the art may use the technical contents disclosed above to change or modify into equivalent effective embodiments However, any modifications or equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.
Claims (8)
如权利要求1所述的激光水平仪，其特征在于，[Corrected 06.12.2021 according to Rule 26]
The laser level of claim 1, wherein:
如权利要求1所述的激光水平仪，其特征在于，[Corrected 06.12.2021 according to Rule 26]
The laser level of claim 1, wherein:
如权利要求1所述的激光水平仪，其特征在于，[Corrected 06.12.2021 according to Rule 26]
The laser level of claim 1, wherein:
如权利要求6所述的激光水平仪，其特征在于，[Corrected 06.12.2021 according to Rule 26]
The laser level of claim 6, wherein:
如权利要求1所述的激光水平仪，其特征在于，[Corrected 06.12.2021 according to Rule 26]
The laser level of claim 1, wherein:
如权利要求1所述的激光水平仪，其特征在于，[Corrected 06.12.2021 according to Rule 26]
The laser level of claim 1, wherein:
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| US11846507B2 (en) | 2019-01-25 | 2023-12-19 | Stanley Black & Decker Inc. | Laser level system |
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| CN214470826U (en) * | 2021-02-04 | 2021-10-22 | 常州华达科捷光电仪器有限公司 | Laser level meter |
| CN117109541A (en) * | 2022-05-17 | 2023-11-24 | 常州华达科捷光电仪器有限公司 | Laser projection flattening method |
| CN115218879B (en) * | 2022-08-02 | 2024-08-06 | 扬州翎途智能科技有限公司 | Remote control platform of laser level meter |
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