CN210922619U - Laser demarcation device - Google Patents
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Abstract
The utility model provides a laser demarcation device, include: a switch; a power source; the temperature sensor is used for detecting the ambient temperature of the laser demarcation device; at least one laser diode for emitting a laser beam; the main control unit is electrically connected with the switch, the power supply, the temperature sensor and the laser diode respectively; different temperature threshold intervals correspond to different working power levels, and when the environment temperature corresponds to different temperature threshold intervals, the main control unit regulates and controls the working power of the laser diode to the corresponding working power levels. The working temperature range of the laser demarcation device is expanded, and the laser demarcation device can be kept in a normal working state within a wide working temperature range (under a high-temperature or low-temperature state).
Description
Technical Field
The application relates to a laser demarcation device.
Background
Along with the development of building and other industries, the application of the laser line projector is more and more extensive. The laser line projector is a measuring instrument made by mounting and fixing a laser device on a telescope tube of a common level, the laser device consists of a helium-neon laser and a prism light guide system, and in the using process, the laser line projector emits laser beams to form a laser surface through the prism light guide system so as to project horizontal and vertical laser lines, bright red light spots are obtained on a target, and the measuring purpose is finally realized. In order to improve the visibility of the laser line or spot emitted by the laser line striper, existing manufacturers tend to use laser diodes of increasingly higher power, which also results in increasing power consumption and thermal load on the laser line striper. Furthermore, there is an increasing trend in existing laser line projectors towards the use of multiple laser diodes, and the increasing number of laser diodes also increases the thermal load on the laser line projector.
The laser diode has the advantages of small volume, light weight, low power consumption, simple driving circuit, convenient modulation, mechanical impact resistance, vibration resistance and the like, but is extremely sensitive to overcurrent, overvoltage and electrostatic interference, so when in use, the laser diode needs to pay special attention not to work at higher temperature, the threshold current is increased, the conversion frequency is lower, and the aging of the device is accelerated. Laser projectors on the market have previously mainly used red laser diodes. In recent years, as green laser diodes have been marketed, more and more laser line projectors have been used with more powerful green laser diodes to achieve higher visibility. Since the photons of the green laser beam are energetic, the operating voltage of the green laser diode is also higher and the current is relatively higher, which also results in more waste heat being generated during operation of the laser striper using the green laser diode, in other words, the operating environment of the laser striper is warmer. The loss of the hardware of the laser demarcation device due to the overhigh working environment temperature is large, the service lives of a laser diode and a battery are greatly shortened, and even the laser demarcation device cannot work normally. In order to reduce the thermal load, the laser line projector in the existing market often adopts a laser diode with a lower pulse duty ratio during production, but the visibility of the laser line emitted by the laser line projector is reduced.
SUMMERY OF THE UTILITY MODEL
For solving the contradiction that is difficult to reconcile between the high visibility of the laser line that the laser line appearance sent and the hardware loss among the prior art, the utility model provides a laser line appearance, this laser line appearance can be according to different ambient temperature automatically regulated for different operating power ranks, and not only the visibility of laser line is high, prolongs the life of laser diode and battery simultaneously.
The utility model provides a laser demarcation device, include: a switch; a power source; the temperature sensor is used for detecting the ambient temperature of the laser demarcation device; at least one laser diode for emitting a laser beam; the main control unit is electrically connected with the switch, the power supply, the temperature sensor and the laser diode respectively; different temperature threshold intervals correspond to different working power levels, and when the environment temperature corresponds to different temperature threshold intervals, the main control unit regulates and controls the working power of the laser diode to the corresponding working power levels.
Further, when the ambient temperature corresponds to different temperature threshold intervals, the main control unit regulates and controls the voltage and/or the pulse duty ratio of the laser diode so as to regulate and control the working power of the laser diode to a corresponding working power level.
Further, when the ambient temperature corresponds to different low-temperature threshold intervals, the main control unit increases the voltage of the laser diode and/or the pulse duty ratio so as to increase the working power of the laser diode to a corresponding working power level.
Further, the low temperature threshold interval comprises at least one different low temperature threshold interval corresponding to different operating power levels.
Further, when the ambient temperature corresponds to different high temperature threshold intervals, the main control unit reduces the voltage of the laser diode and/or the pulse duty ratio so as to reduce the working power of the laser diode to a corresponding working power level.
Further, the high temperature threshold interval includes at least two different high temperature threshold intervals corresponding to different operating power levels.
Further, the power supply of the laser demarcation device further comprises a battery, the main control unit comprises a battery management module for monitoring the residual electric quantity of the battery, and when the residual electric quantity of the battery corresponds to different electric quantity threshold intervals, the main control unit reduces the working power of the laser diode to a corresponding working power level.
Further, the power threshold interval includes at least one different power threshold interval corresponding to different operating power levels.
Further, the laser demarcation device further comprises a communication module, and the laser demarcation device is in communication connection with the intelligent terminal through the communication module.
Further, the communication module is a wired communication module or a wireless communication module.
Further, when the ambient temperature corresponds to different temperature threshold intervals, the main control unit regulates and controls the working power of the laser diode step by step or jump to a corresponding working power level.
Further, the ambient temperature refers to an internal temperature or an external temperature of the laser line plotter.
Compared with the prior art, the utility model has the advantages that:
1. according to the laser demarcation device, the laser demarcation device is automatically adjusted to different working power levels according to different environmental temperatures (non-real-time or real-time), so that the working temperature range of the laser demarcation device is expanded, and the laser demarcation device can be kept in a normal working state within a wider working temperature range (under a high-temperature or low-temperature state). Different laser demarcation devices do not need to be replaced and used according to different environmental temperatures, and only one laser demarcation device is needed. Specifically, when the laser line projector is at a high ambient temperature and in a corresponding high-temperature threshold interval, the main control unit reduces the working power of the laser diode to a corresponding working power level by regulating and controlling the voltage and/or the duty ratio, so that the hardware loss of the laser diode is reduced, the service life of the laser diode is prolonged, and meanwhile, the high visibility of a laser line can be kept; when this application laser demarcation appearance is lower and when being in corresponding low temperature threshold interval at ambient temperature, the main control unit not only can keep the visibility of high laser line through regulation and control voltage, and/or duty cycle so that laser diode's operating power improves corresponding operating power rank, can also reduce laser diode's hardware loss, extension laser diode's life.
2. This application when laser demarcation appearance's battery surplus reduces corresponding electric quantity threshold interval, through regulation and control laser diode's voltage, and/or duty cycle in order to reduce laser diode to corresponding operating power rank, reduce the hardware loss to the battery, prolong the life of battery to the operating time of extension laser demarcation appearance.
3. The laser demarcation device of this application still includes communication module, communication module includes wired communication module and wireless communication module, and the laser demarcation device of this application carries out information interaction through between communication module and other intelligent terminal, receives intelligent terminal's regulation and control etc. like the laser demarcation device of this application.
Drawings
FIG. 1 is a diagram showing the relationship between the structures of the laser demarcation device of the present application;
FIG. 2 is a schematic diagram of the operation of one embodiment of the laser level of the present application;
FIG. 3 is a schematic diagram of the operation of an embodiment of the laser level of the present application.
Detailed Description
The advantages of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 shows the structural relationship sketch map of the laser demarcation device of this application, the utility model provides a pair of laser demarcation device, include: a switch; a power source; the temperature sensor is used for detecting the ambient temperature of the laser demarcation device; at least one laser diode for emitting a laser beam; the main control unit is electrically connected with the switch, the power supply, the temperature sensor and the laser diode respectively; different temperature threshold intervals correspond to different working power levels, and when the environment temperature corresponds to different temperature threshold intervals, the main control unit regulates and controls the working power of the laser diode to the corresponding working power levels. The laser diode is a visible light laser diode, preferably one or more of a red laser diode, a green laser diode and a blue laser diode. Preferably, the power supply is configured such that when the ambient temperature corresponds to different temperature threshold intervals, the main control unit regulates and controls the voltage and/or the pulse duty ratio of the laser diode to regulate and control the working power of the laser diode to a corresponding working power level. The pulse duty ratio refers to a proportion of one pulse period occupied by the high level. A pulse signal is a form of electrical signal that propagates through a square wave, with the code being either 00 or 01, 01 being high, and 00 being low. According to the laser demarcation device, the laser demarcation device is automatically adjusted to different working power levels according to different environmental temperatures (non-real-time or real-time), so that the working temperature range of the laser demarcation device is expanded, and the laser demarcation device can be kept in a normal working state within a wider working temperature range (under a high-temperature or low-temperature state). Different laser demarcation devices do not need to be replaced and used according to different environmental temperatures, and only one laser demarcation device is needed. Illustratively, as shown in table 1, the default ambient temperature of the laser line plotter of the present application is 0-19 ℃, and the corresponding default operating power is DC8V and the duty cycle is 100%: 0 percent. When the switch is opened, it is first at a default operating power level. And then, adjusting the working power level of the laser diode according to the temperature threshold interval corresponding to the ambient temperature detected by the temperature sensor. The ambient temperature refers to the internal temperature or the external temperature of the laser demarcation device. When the environment temperature corresponds to different temperature threshold intervals, the main control unit regulates and controls the working power of the laser diode step by step or jump to a corresponding working power level, so that sensitive response and timely regulation and control are realized.
Specifically, when the ambient temperature corresponds to different low-temperature threshold intervals, the main control unit increases the voltage of the laser diode and/or the pulse duty ratio so as to increase the working power of the laser diode to a corresponding working power level. The low temperature threshold interval comprises at least one different low temperature threshold interval corresponding to different operating power levels. The laser diode has the advantages that the visibility of laser lines can be kept high, the hardware loss of the laser diode can be reduced, and the service life of the laser diode is prolonged. Illustratively, as shown in Table 1, the low temperature threshold interval of the laser line projector of the present application is-10 ℃ to 0 ℃, and the corresponding operating power level is D1(DC 8V; duty cycle 100%: 0%).
Specifically, when the ambient temperature corresponds to different high temperature threshold intervals, the main control unit reduces the voltage of the laser diode and/or the pulse duty ratio so as to reduce the working power of the laser diode to a corresponding working power level. The high temperature threshold interval includes at least two different high temperature threshold intervals corresponding to different operating power levels. The laser device not only reduces the hardware loss of the laser diode and prolongs the service life of the laser diode, but also can keep high visibility of laser lines. Illustratively, as shown in table 1, the laser demarcation device of the present application has three high temperature threshold intervals, which are 20 ℃ to 39 ℃, 40 ℃ to 59 ℃, and more than 60 ℃, respectively, and the corresponding operating power levels are G1
(DC 7V; duty cycle 80%: 20%), G2(DC 6V; duty cycle 50%: 50%), turn off the instrument.
TABLE 1 correspondence between temperature threshold intervals and operating power levels
According to the utility model discloses an embodiment, laser demarcation appearance the power further includes the battery, the main control unit is including being used for the control the battery management module of the residual capacity of battery works as when the residual capacity of battery corresponds different electric quantity threshold interval, the main control unit will laser diode's operating power reduces to corresponding operating power rank. The hardware loss of the battery is reduced, the service life of the battery is prolonged, and the working time of the laser demarcation device is prolonged. The battery is a device for storing electric energy, and specifically comprises a non-rechargeable dry battery, a nickel-hydrogen button battery, and/or a rechargeable lead-acid storage battery, a nickel-hydrogen battery, a lithium battery and the like. The electric quantity threshold interval comprises at least one different electric quantity threshold interval corresponding to different working power levels, and the electric quantity threshold interval refers to a residual electric quantity percentage interval of the battery. Illustratively, as shown in Table 2, there are two of the charge threshold intervals, respectively above 10% and below 10%, corresponding to default operating power levels of B1(DC 8V; duty cycle 100%: 0%), B2(DC 8V; duty cycle 30%: 70%).
TABLE 2 corresponding relationship between electric quantity threshold interval and working power level
| Threshold interval of electric quantity | Operating power class |
| Less than 10% | B2(DC 8V; duty cycle 30%: 70%) |
| More than 10 percent | B1(DC 8V; duty cycle 100%: 0%) |
It should be noted that the data ranges and data in table 1 and table 2 of the present application can be adjusted according to actual needs, and table 1 and table 2 provided in the present application are only examples for understanding the present application and do not constitute a unique limitation to the technical solution of the present application.
According to an embodiment of the application, the laser demarcation device further comprises a communication module, and the laser demarcation device is in communication connection with the intelligent terminal through the communication module. Therefore, the information connection between the laser demarcation device and the terminal is realized. The communication module is a wired communication module or a wireless communication module. The intelligent terminal is a mobile terminal or a fixed terminal, and the mobile terminal is a mobile phone, a notebook computer, a tablet computer, a vehicle-mounted computer, a palm computer, a Personal Digital Assistant (PDA), a Portable Media Player (PMP), a navigation device, a wearable device, an intelligent bracelet, a pedometer, and the like. The fixed terminal is a desktop computer and the like.
Fig. 2 is a schematic flow chart illustrating the operation of the laser striper of the present application for adjusting the operating power level of a laser diode based on ambient temperature changes and/or battery power changes. According to fig. 2, after the laser striper is powered on, the laser striper is operated at a default operating power level by default. Then, the temperature sensor of the laser demarcation device detects whether the ambient temperature reaches the corresponding temperature threshold interval and detects whether the residual electric quantity of the battery reaches the corresponding electric quantity threshold interval. If the ambient temperature reaches a corresponding temperature threshold interval (a high-temperature threshold interval or a low-temperature threshold interval), or when the detected residual electric quantity of the battery reaches a corresponding electric quantity threshold interval, the main control unit regulates and controls the working power of the laser diode to a corresponding working power level; if neither is satisfied, operating at a default operating power; if the ambient temperature does not reach the corresponding temperature threshold interval (high temperature threshold interval and low temperature threshold interval), and the detected residual electric quantity of the battery reaches the corresponding electric quantity threshold interval, the main control unit regulates and controls the working power of the laser diode to the corresponding working power level; and if the ambient temperature does not reach the corresponding temperature threshold interval (high temperature threshold interval and low temperature threshold interval) and the detected residual electric quantity of the battery does not reach the corresponding electric quantity threshold interval, the laser diode works at the default working power.
As can be known to those skilled in the art, for example, as shown in fig. 3, the laser demarcation device of the present application may be further configured to preferentially detect whether the ambient temperature reaches a corresponding temperature threshold interval (a high temperature threshold interval and a low temperature threshold interval), and if the ambient temperature reaches the high temperature threshold interval or the low temperature threshold interval, the main control unit regulates and controls the working power of the laser diode to a corresponding working power level, and does not detect whether the remaining power of the battery reaches the corresponding power threshold interval; if the environment temperature does not reach the high-temperature threshold interval and the low-temperature threshold interval, in other words, when the environment temperature is within the default temperature threshold interval, whether the residual electric quantity of the battery reaches the corresponding electric quantity threshold interval is further detected, if the residual electric quantity reaches the corresponding electric quantity threshold interval, the main control unit regulates and controls the working power of the laser diode to the corresponding working power level, and if the residual electric quantity does not reach the corresponding electric quantity threshold interval, the laser diode works at the default working power.
The above detailed description of the embodiments of the present invention is only for exemplary purposes, and the present invention is not limited to the above described embodiments. Any equivalent modifications and substitutions to those skilled in the art are also within the scope of the present invention. Accordingly, variations and modifications in equivalents may be made without departing from the spirit and scope of the invention, which is intended to be covered by the following claims.
Claims (12)
1. A laser demarcation device, comprising: a switch; a power source; the temperature sensor is used for detecting the ambient temperature of the laser demarcation device; at least one laser diode for emitting a laser beam; the main control unit is electrically connected with the temperature sensor and the laser diode respectively; different temperature threshold intervals correspond to different working power levels, and when the environment temperature corresponds to different temperature threshold intervals, the main control unit regulates and controls the working power of the laser diode to the corresponding working power levels.
2. The laser level of claim 1, wherein the master control unit regulates a voltage of the laser diode, and/or a pulse duty cycle, to regulate an operating power of the laser diode to a corresponding operating power level when the ambient temperature corresponds to different temperature threshold intervals.
3. The laser demarcation device of claim 2, wherein the master control unit increases the voltage of the laser diode and/or the pulse duty cycle to increase the operating power of the laser diode to a corresponding operating power level when the ambient temperature corresponds to different low temperature threshold intervals.
4. The laser demarcation device of claim 3, wherein the low temperature threshold intervals comprise at least one different low temperature threshold interval corresponding to different operating power levels.
5. The laser level of claim 2, wherein the master control unit reduces the voltage of the laser diode, and/or the pulse duty cycle, to reduce the operating power of the laser diode to a corresponding operating power level when the ambient temperature corresponds to different high temperature threshold intervals.
6. The laser demarcation device of claim 5, wherein the high temperature threshold intervals comprise at least two different high temperature threshold intervals corresponding to different operating power levels.
7. The laser demarcation device of claim 1, wherein the power supply of the laser demarcation device further comprises a battery, the master control unit comprises a battery management module for monitoring a remaining power of the battery, and the master control unit reduces the operating power of the laser diode to a corresponding operating power level when the remaining power of the battery corresponds to different power threshold intervals.
8. The laser demarcation device of claim 7, wherein the power threshold intervals comprise at least one different power threshold interval corresponding to different operating power levels.
9. The laser demarcation device of claim 1, further comprising a communication module, wherein the laser demarcation device is in communication with a smart terminal via the communication module.
10. The laser demarcation device of claim 9, wherein the communication module is a wired communication module or a wireless communication module.
11. The laser demarcation device of claim 1, wherein the master control unit regulates the operating power of the laser diode to a corresponding operating power level in a stepwise or step-skip manner when the ambient temperature corresponds to different temperature threshold intervals.
12. The laser demarcation device of any one of claims 1 to 11, wherein the ambient temperature is an internal temperature or an external temperature of the laser demarcation device.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922056986.5U CN210922619U (en) | 2019-11-26 | 2019-11-26 | Laser demarcation device |
| PCT/CN2020/113456 WO2021103734A1 (en) | 2019-11-26 | 2020-09-04 | Line laser level |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922056986.5U CN210922619U (en) | 2019-11-26 | 2019-11-26 | Laser demarcation device |
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| CN210922619U true CN210922619U (en) | 2020-07-03 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112857331A (en) * | 2019-11-26 | 2021-05-28 | 常州华达科捷光电仪器有限公司 | Laser demarcation device |
| WO2021103734A1 (en) * | 2019-11-26 | 2021-06-03 | 常州华达科捷光电仪器有限公司 | Line laser level |
| FR3118257A1 (en) * | 2020-12-18 | 2022-06-24 | Sagemcom Broadband Sas | Method and device for the transmission of medium-power optical signals adapted to temperature and aging, corresponding computer program and program medium. |
| CN115313146A (en) * | 2021-05-08 | 2022-11-08 | 常州华达科捷光电仪器有限公司 | Laser diode control method, control system and laser instrument |
| WO2022237285A1 (en) * | 2021-05-08 | 2022-11-17 | 常州华达科捷光电仪器有限公司 | Laser diode control method and control system, and laser device |
-
2019
- 2019-11-26 CN CN201922056986.5U patent/CN210922619U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112857331A (en) * | 2019-11-26 | 2021-05-28 | 常州华达科捷光电仪器有限公司 | Laser demarcation device |
| WO2021103734A1 (en) * | 2019-11-26 | 2021-06-03 | 常州华达科捷光电仪器有限公司 | Line laser level |
| FR3118257A1 (en) * | 2020-12-18 | 2022-06-24 | Sagemcom Broadband Sas | Method and device for the transmission of medium-power optical signals adapted to temperature and aging, corresponding computer program and program medium. |
| EP4016493A3 (en) * | 2020-12-18 | 2022-07-13 | Sagemcom Broadband Sas | Method and device for optical signal transmission with average power adapted to temperature and ageing, corresponding computer program and program medium |
| US12160263B2 (en) | 2020-12-18 | 2024-12-03 | Sagemcom Broadband Sas | Method and a device for transmitting optical signals with average power adapted to temperature and to ageing, and a corresponding computer program and program medium |
| CN115313146A (en) * | 2021-05-08 | 2022-11-08 | 常州华达科捷光电仪器有限公司 | Laser diode control method, control system and laser instrument |
| WO2022237285A1 (en) * | 2021-05-08 | 2022-11-17 | 常州华达科捷光电仪器有限公司 | Laser diode control method and control system, and laser device |
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