CN107918991A - A kind of warning device - Google Patents
A kind of warning device Download PDFInfo
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- CN107918991A CN107918991A CN201710965525.2A CN201710965525A CN107918991A CN 107918991 A CN107918991 A CN 107918991A CN 201710965525 A CN201710965525 A CN 201710965525A CN 107918991 A CN107918991 A CN 107918991A
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- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 238000001179 sorption measurement Methods 0.000 claims description 10
- 230000000007 visual effect Effects 0.000 claims description 6
- 230000005389 magnetism Effects 0.000 claims description 5
- 230000000644 propagated effect Effects 0.000 claims description 5
- 229910052755 nonmetal Inorganic materials 0.000 claims description 4
- 230000011664 signaling Effects 0.000 claims description 4
- 230000007613 environmental effect Effects 0.000 claims description 3
- 230000006870 function Effects 0.000 abstract description 5
- 238000002955 isolation Methods 0.000 abstract description 5
- 230000036626 alertness Effects 0.000 abstract description 2
- 230000001902 propagating effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000006399 behavior Effects 0.000 description 2
- 230000005294 ferromagnetic effect Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000005291 magnetic effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/181—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The present invention provides a kind of warning device, which is detachable warning device, including：Signal emission module, signal receiving module and alarm module；Wherein, signal emission module is used to launch the first signal；Signal receiving module is used to receive secondary signal, and according to secondary signal control alarm module whether alert；Wherein, signal of the secondary signal for the first signal after propagating.This warning device integrates sound and optic signal, alarm is carried out in terms of vision and the sense of hearing, it can be used cooperatively with safe fence, improve the warning function of security isolation measure, and this warning device is detachable, device is light, occupancy is small, can be installed at any time according to the requirement of specific electric operating on field device, safe fence railing and other components, improves the alertness of operating personnel, corrects unsafe acts in time.
Description
Technical Field
The invention relates to the technical field of electric power system safety, in particular to an alarm device.
Background
In the current electric power production practice, high voltages such as operating voltage, test voltage, power supply voltage and the like often exist on equipment on a working site, and technical measures for ensuring safety must be implemented to ensure personal safety, equipment safety and power grid safety. At present, the main safety measure who adopts is for installing to block (or rail) or hang the sign, keeps apart work place and external world to restriction operation personnel's home range guarantees the sufficient safe distance of live-wire apparatus.
The safety barrier (fence) is used as a visual isolation measure, various field devices are isolated in an area through a fence belt, and the behavior of an operator is guided or warned through characters or patterns. However, in actual work, people have various uncontrollable characteristics such as autonomy, spontaneous property and uncertainty, are restricted by a plurality of main and objective factors such as external interference of different degrees or bad self state, only warn through characters or patterns, have single measures, and operators easily neglect the installed safety barrier (fence), so that potential safety hazards are caused.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defects that in the prior art, a safety fence is used as an isolation measure for electrified equipment, and warning is carried out through characters or patterns, and the warning measure is too single and is easy to neglect.
Therefore, the invention provides the following technical scheme:
the invention provides an alarm device, which is a detachable alarm device, and comprises: the device comprises a signal transmitting module, a signal receiving module and an alarm module; the signal transmitting module is used for transmitting a first signal; the signal receiving module is used for receiving a second signal and controlling whether the alarm module sends alarm information or not according to the second signal; wherein the second signal is a signal after the first signal has propagated.
Optionally, the signal receiving module is further configured to: when the intensity of the first signal and the intensity of the second signal are greater than a first preset threshold value, controlling the alarm module to send alarm information; and/or controlling the alarm module to send alarm information when the time interval between the receiving time and the sending time is greater than a second preset threshold value; the receiving time is the time when the signal receiving module receives the second signal, and the sending time is the time when the signal sending module sends the first signal.
Optionally, the signal transmitting module includes a plurality of light sources and an environment detecting module, where the environment detecting module is configured to detect environment information where the alarm device is located, and select a specific light source from the plurality of light sources to send the first signal according to the environment information.
Optionally, the environmental information comprises light intensity information.
Optionally, the signal emitted by the signal emitting module is an infrared ray.
Optionally, the alarm information is sound and light information.
Optionally, the portable terminal further comprises a power supply module, which is respectively connected with the signal transmitting module, the signal receiving module and the alarm module, and is used for providing power required by the signal transmitting module, the signal receiving module and the alarm module.
Optionally, the monitoring system further comprises a suction device, the power supply module and the alarm module are connected in series, and the suction device is used for sending out the alarm information when the state of the door changes.
Optionally, a fixing means is included for fixing the alarm device in place.
Optionally, the fixing means comprises: the adsorption device has magnetism and can be directly adsorbed and fixed with metal.
Optionally, the fixing means comprises: the binding device can be bound and fixed with nonmetal or metal.
The technical scheme of the invention has the following advantages:
1. the alarm equipment provided by the invention is detachable alarm equipment, which comprises: the device comprises a signal transmitting module, a signal receiving module and an alarm module; the signal transmitting module is used for transmitting a first signal; the signal receiving module is used for receiving a second signal and controlling whether the alarm module sends alarm information or not according to the second signal; wherein the second signal is a signal after the first signal has propagated. The alarm device integrates sound and light signals into a whole, carries out alarm prompt in the aspects of vision and hearing, can be matched with the safety fence for use, improves the warning effect of safety isolation measures, is detachable, is light and convenient in device, small in occupied volume, can be arranged on field equipment, a guardrail rail and other members according to specific electric power operation requirements at any time, improves the alertness of operators, and corrects unsafe behaviors in time.
2. The alarm equipment provided by the invention also comprises an actuation device on the basis of the technical scheme, the alarm equipment is arranged on a high-pressure chamber door which is dangerous and can not be detected by infrared rays or is forbidden to enter, when an operator mistakenly enters the high-pressure chamber, the actuation device is driven to act, an acousto-optic alarm loop is switched on, an alarm signal is sent out, and the application range and the flexibility of the alarm equipment are increased.
3. The alarm device provided by the invention further comprises a fixing device on the basis of the technical scheme, wherein the fixing device comprises an adsorption device and a binding device, the adsorption device has magnetism and can be directly adsorbed and fixed with metal, and the binding device can be bound and fixed with nonmetal or metal, so that the alarm device is easy to install and convenient to disassemble.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic diagram of a specific example of an alarm device in an embodiment of the present invention;
FIG. 2 is a schematic diagram of another specific example of an alarm device in an embodiment of the present invention;
FIG. 3 is a schematic diagram of another specific example of an alarm device in an embodiment of the present invention;
FIG. 4 is a schematic diagram of another specific example of an alarm device in an embodiment of the present invention;
FIG. 5 is a schematic diagram of another specific example of an alarm device in an embodiment of the present invention;
FIG. 6 is a schematic diagram of another specific example of an alarm device in an embodiment of the present invention;
FIG. 7 is a schematic diagram of another specific example of an alarm device in an embodiment of the present invention;
FIG. 8 is a schematic diagram of another specific example of an alarm device in an embodiment of the present invention;
FIG. 9 is a schematic diagram of another specific example of an alarm device in an embodiment of the present invention;
fig. 10 is a schematic diagram showing another specific example of the alarm device in the embodiment of the present invention.
Reference numerals:
1-a signal transmitting module; 11-a plurality of light sources; 12-an environment detection module; 13-a signal generation module; 2-a signal receiving module; 21-receiving a light source module; 22-a signal processing module; 23-a single chip microcomputer; 3-an alarm module; 31-an alarm device; 32-an alarm control module; 4-a power supply module; 5-a suction device; 6-a fixing device; 61-an adsorption device; 62-binding means; 7-an obstacle; 8-door.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The application field of the alarm device provided by the embodiment is not limited to the electric power field, and can also be applied to other fields, such as the traffic field, and a specific example is that the alarm device provided by the embodiment is installed on a temporary parking warning device on a highway.
This embodiment provides an alarm device, and this alarm device is removable alarm device, as shown in fig. 1, includes signal transmission module 1, signal receiving module 2 and alarm module 3, wherein:
the signal transmitting module 1 is used for transmitting a first signal. In this embodiment, as shown in fig. 2, the signal emitting module 1 includes a plurality of light sources 11 and an environment detecting module 12, the plurality of light sources 11 are two light sources, which are respectively a light source 1 and a light source 2, the light source 1 is a single-ray signal source, and is high in power, good in light condensing performance, strong in anti-interference capability, and suitable for warning arrangement with a long outdoor distance; the light source 2 is a divergent signal source, has a large ray coverage area and is suitable for open-type interval warning arrangement with a short indoor distance; of course, in other embodiments, the light source 1 may be a plurality of gears, the power of the single radiation emitted by different gears is different, the anti-jamming capability of the high-power radiation is better, and the specific gear selection is automatically selected according to the intensity of the ambient light sensed by the photosensitive element on the device. In this embodiment, the signals emitted by the plurality of light sources 11 are infrared rays, and of course, in other embodiments, the light sources may be laser light sources, and the laser light sources may emit laser signals of different colors, such as red, blue, green, and the like, and may be set reasonably as needed. The environment detection module 12 is configured to detect environment information where the alarm device is located, and select a specific light source from the plurality of light sources 11 according to the environment information to send a first signal. In this embodiment, the environment information includes light intensity information, and when the intensity of the environment light is greater than a first light intensity threshold (e.g., 10000lx), it indicates that the light intensity of the environment is strong, and the emitted first signal is easily interfered, so that a higher gear of the light source 1 is selected as the signal emitting light source; when the intensity of the ambient light is less than a second light intensity threshold (such as 5000lx), it indicates that the intensity of the ambient light is weak, and the emitted first signal is not easily interfered, so that a lower gear of the light source 1 is selected as a signal emitting light source; of course, in other embodiments, the environmental information may include an ambient temperature, a humidity, and the like, which may be set as appropriate as needed.
Further, because the range of the input signal allowed by different light sources is different, in order to ensure that the light sources can better emit signals, as shown in fig. 3, the signal emitting module 1 further includes a signal generating module 13 connected to the environment detecting module 12 and also connected to the plurality of light sources 11, and generates a modulation signal according to the environment information detected by the environment detecting module 12, and sends the modulation signal to a specific light source among the plurality of light sources 11.
The signal receiving module 2 is used for receiving the second signal and controlling whether the alarm module 3 sends alarm information or not according to the second signal; the second signal is a signal after the first signal is propagated. The signal receiving module 2 is further configured to control the alarm module 3 to send out alarm information when the strength of the first signal and the strength of the second signal are greater than a first predetermined threshold, specifically, because the second signal is a signal obtained after the first signal is propagated, the strength of the first signal is closer to the strength of the second signal under the condition that no power worker enters the electric power, and when the power worker enters the interval by mistake, the strength of the first signal is significantly greater than the strength of the second signal, so that the first predetermined threshold can be set as a judgment basis, and the first predetermined threshold can be reasonably set according to an actual application occasion; and/or when the time interval between the receiving time and the sending time is greater than a second preset threshold value, controlling the alarm module 3 to send alarm information, wherein the second preset threshold value is reasonably set according to the actual application occasion; the receiving time is the time when the signal receiving module 2 receives the second signal, and the sending time is the time when the signal sending module 1 sends the first signal. In this embodiment, as shown in fig. 4, the signal receiving module 2 includes a light receiving source module 21, a signal processing module 22 and a single chip microcomputer 23, and the light receiving source module 21 receives the second signal; the signal processing module 22 is connected to the light source receiving module 21 and also connected to the single chip 23, and amplifies, filters, and the like the second signal, and sends the processed signal to the single chip 23, the single chip 23 is connected to the alarm module 3, in practical application, as shown in fig. 5, an obstacle 7 is arranged outside the alarm device for reflecting the first signal, the obstacle 7 can be arranged separately, or devices and the like on the operation site can be used as obstacles, such as fence piles, the second signal is a signal transmitted by the first signal after being reflected by the obstacle 7, when an electric power operator mistakenly enters an interval, the intensity of the second signal can be attenuated and even be cut off, the second signal received by the light source receiving module 21 is an abnormal signal, the signal transmitted to the alarm module 3 by the single chip 23 can trigger the alarm module 3 to send alarm information, otherwise, when no operator mistakenly enters the interval, the second signal is a normal signal, and the alarm module 3 cannot be triggered to send alarm information; of course, in other embodiments, the signal receiving module 2 may also have multiple implementation forms, such as a light receiving source module, a single chip microcomputer or a light receiving source module, a signal processing module, a hardware control chip, and the like, as long as the function can be implemented, and the function can be reasonably set as required.
And the alarm module 3 is connected with the signal receiving module 2, and sends alarm information when the second signal is abnormal, and does not send alarm information when the second signal is normal. In this embodiment, as shown in fig. 6, the alarm module 3 includes an alarm device 31 and an alarm control module 32, the alarm control module 32 is connected to the alarm device 31 and is further connected to the single chip microcomputer 23 in the signal receiving module 2, the alarm control module 32 controls the alarm device 31 to send out alarm information according to the received signal output by the single chip microcomputer 23, the alarm device 31 is an audible and visual alarm, the alarm information is audible and visual information, and the sound information may include information such as a power equipment number.
The alarm device integrates sound and light signals into a whole, carries out alarm prompt from the aspects of vision and hearing, is matched with the safety fence for use, improves the warning effect of safety isolation measures, is detachable, has light weight and small occupied volume, and can be arranged on field equipment, a guardrail and other components at any time according to specific electric power operation requirements; the intelligent warning board can also be matched with other electric equipment or warning signs and the like for use, so that the warning effect is enhanced in the aspects of vision and hearing; different light sources are selected for use under different working environments, so that the device can be better suitable for actual operation sites, the requirements of diversified working conditions are met, and the application range is wider.
Further, as shown in fig. 7, the alarm device further includes a power supply module 4, which is respectively connected to the signal transmitting module 1, the signal receiving module 2, and the alarm module 3, and is configured to provide power required by the signal transmitting module 1, the signal receiving module 2, and the alarm module 3. Because the lithium battery has the advantages of small volume, light weight, high energy density, low cost and the like, the power supply module 4 is a lithium battery in the embodiment, and of course, in other embodiments, the power supply module 4 may be a rechargeable battery or a storage battery or a button battery, and the like, and is reasonably arranged as required.
Since there are many high-pressure chambers that cannot be detected by infrared in the electric power operation site, the doors of the high-pressure chambers cannot be opened under normal conditions, and in order to avoid the operator from entering the high-pressure chambers by mistake, it is also necessary to install an alarm device on the doors, and further, on the basis of the above alarm device, as shown in fig. 8, the device further includes a suction device 5 connected in series with the power supply module 4 and the alarm module 3 for sending out alarm information when the door state changes. Because the ferromagnetic attraction device is convenient to install, convenient to use, low in power consumption and low in cost, in the embodiment, as shown in fig. 9, the attraction device 5 is a ferromagnetic attraction device and is connected with the alarm device 31 in the alarm module 3; the attraction device 5, the power supply module 4 and the alarm device 31 form a series alarm loop, the attraction device 5 is an adsorption switch arranged on the door 8, the adsorption switch adopts magnetic adsorption, the moving contact iron sheet 51 is adsorbed on the permanent magnet 52 when the door is closed, the contact of the alarm loop is reliably disconnected, the moving contact iron sheet 51 returns to the original position when the door 8 is opened, and the audible and visual alarm is reliably connected after returning to the original position; of course, in other embodiments, other types of suction devices may be used, such as an electromagnetic switch, or other switches that can achieve similar functions, and the suction devices may be reasonably arranged according to needs. Above-mentioned alarm device has realized the audible and visual alarm suggestion of the high-pressure chamber that can't carry out infrared detection, and installs simple to use, carries out real-time supervision to people's action to the door state is as opening the condition of stopping, realizes automatic alarm function.
Further, in order to facilitate the installation of the alarm device, on the basis of the alarm device, as shown in fig. 10, a fixing device 6 is further included for fixing the alarm device in place. In the present embodiment, the fixing devices are a suction device 61 and a binding device 62, wherein: the adsorption device 61 has magnetism and can be directly adsorbed and fixed with metal, and the adsorption device is a sticker with magnetism and can be conveniently adsorbed on the surface of metal equipment; the binding device 62 can be bound and fixed with nonmetal or metal, and the binding device 62 is two ropes which can be tied on metal equipment or other special components; the alarm device is easy to install and convenient to detach, and in other embodiments, the fixing device 6 can be a clamping device and can be reasonably arranged as required.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (11)
1. An alarm device, wherein the alarm device is a detachable alarm device, the detachable alarm device comprising: the device comprises a signal transmitting module (1), a signal receiving module (2) and an alarm module (3); wherein,
the signal transmitting module (1) is used for transmitting a first signal;
the signal receiving module (2) is used for receiving a second signal and controlling whether the alarm module (3) sends alarm information or not according to the second signal; wherein the second signal is a signal after the first signal has propagated.
2. The alarm device according to claim 1, characterized in that the signal receiving module (2) is further configured to:
when the intensity of the first signal and the intensity of the second signal are greater than a first preset threshold value, controlling the alarm module (3) to send alarm information; and/or the presence of a gas in the gas,
when the time interval between the receiving time and the sending time is greater than a second preset threshold value, controlling the alarm module (3) to send alarm information; the receiving time is the time when the signal receiving module (2) receives the second signal, and the sending time is the time when the signal sending module (1) sends the first signal.
3. The alarm device according to claim 1, wherein the signal transmitting module (1) comprises a plurality of light sources (11) and an environment detecting module (12), wherein the environment detecting module (12) is configured to detect environment information of the alarm device and select a specific light source from the plurality of light sources (11) to emit the first signal according to the environment information.
4. The warning device of claim 3, wherein the environmental information includes light intensity information.
5. The alarm device according to any one of claims 1-4, characterised in that the signal emitted by the signal emitting module (1) is an infrared ray.
6. The warning device according to claim 5, wherein the warning information is an audible and visual information.
7. The alarm device according to claim 1, further comprising a power supply module (4) respectively connected to the signal transmitting module (1), the signal receiving module (2) and the alarm module (3) for providing power required by the signal transmitting module (1), the signal receiving module (2) and the alarm module (3).
8. The alarm device according to any one of claims 1-7, further comprising a suction device (5) connected in series with said power supply module (4) and said alarm module (3) for emitting said alarm information when the door state changes.
9. The alarm device according to any of claims 1-8, further comprising fixing means (6) for fixing the alarm device in place.
10. The alarm device according to claim 9, characterized in that said fixing means (6) comprise: and the adsorption device (61) has magnetism and can be directly adsorbed and fixed with metal.
11. The alarm device according to claim 9 or 10, characterized in that said fixing means (6) comprise: the binding device (62) can be bound and fixed with nonmetal or metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710965525.2A CN107918991A (en) | 2017-10-17 | 2017-10-17 | A kind of warning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710965525.2A CN107918991A (en) | 2017-10-17 | 2017-10-17 | A kind of warning device |
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| Publication Number | Publication Date |
|---|---|
| CN107918991A true CN107918991A (en) | 2018-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710965525.2A Pending CN107918991A (en) | 2017-10-17 | 2017-10-17 | A kind of warning device |
Country Status (1)
| Country | Link |
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| CN (1) | CN107918991A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2020098670A1 (en) * | 2018-11-13 | 2020-05-22 | 苏州宝时得电动工具有限公司 | Self-moving device, alarm module of self-moving device, and alarm method therefor |
| CN111442773A (en) * | 2019-01-16 | 2020-07-24 | 无锡先导智能装备股份有限公司 | Method for generating motion path |
| CN111694066A (en) * | 2020-05-14 | 2020-09-22 | 岭东核电有限公司 | Early warning system based on nuclear power station isolation boundary |
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Address after: Shinan District 266003 Shandong city of Qingdao province Liujiaxia Road No. 17 Applicant after: QINGDAO POWER SUPPLY COMPANY OF STATE GRID SHANDONG ELECTRIC POWER COMPANY Applicant after: STATE GRID CORPORATION OF CHINA Address before: Shinan District 266003 Shandong city of Qingdao province Liujiaxia Road No. 17 Applicant before: QINGDAO POWER SUPPLY COMPANY OF STATE GRID SHANDONG ELECTRIC POWER COMPANY Applicant before: State Grid Corporation of China |
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Application publication date: 20180417 |