CN113516826A - Multidirectional intelligent abandon-prevention alarm device - Google Patents
Multidirectional intelligent abandon-prevention alarm device Download PDFInfo
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- CN113516826A CN113516826A CN202010281504.0A CN202010281504A CN113516826A CN 113516826 A CN113516826 A CN 113516826A CN 202010281504 A CN202010281504 A CN 202010281504A CN 113516826 A CN113516826 A CN 113516826A
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- 238000012545 processing Methods 0.000 claims description 10
- 230000002265 prevention Effects 0.000 claims description 8
- 230000006378 damage Effects 0.000 abstract description 9
- 208000027418 Wounds and injury Diseases 0.000 abstract description 8
- 208000014674 injury Diseases 0.000 abstract description 8
- 238000003384 imaging method Methods 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 239000006096 absorbing agent Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000005855 radiation Effects 0.000 description 1
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/0202—Child monitoring systems using a transmitter-receiver system carried by the parent and the child
- G08B21/0233—System arrangements with pre-alarms, e.g. when a first distance is exceeded
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/0202—Child monitoring systems using a transmitter-receiver system carried by the parent and the child
- G08B21/0205—Specific application combined with child monitoring using a transmitter-receiver system
- G08B21/0208—Combination with audio or video communication, e.g. combination with "baby phone" function
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
- G08B21/0202—Child monitoring systems using a transmitter-receiver system carried by the parent and the child
- G08B21/0294—Display details on parent unit
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/08—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using communication transmission lines
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Child & Adolescent Psychology (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The invention discloses a multidirectional intelligent abandon-prevention alarm device, which comprises: the abandon-proof assembly comprises a positioner, an environment imager and a first signal transceiver, the alarm display assembly is in data connection with the first signal transceiver through a second signal transceiver, when the abandon-proof assembly is far away from the alarm display assembly for a preset distance, the positioner sends out positioning information, the environment imager generates environment image information for the position environment in the preset range around the environment imager, and the positioning information and the environment image information are fed back to the alarm display assembly, and the alarm display assembly sends out an alarm signal while displaying the positioning information and the image information. The intelligent abandon-prevention alarm device can effectively prevent the loss and abandon of the object to be protected, prevent the injury and even fatal injury accidents of children when the children are singly forgotten in the automobile, and simultaneously prevent the children from losing or being abducted.
Description
Technical Field
The invention relates to the field of articles for daily use equipment, in particular to a multidirectional intelligent abandon-prevention alarm device.
Background
The existing anti-lost, anti-theft and anti-turning industry adopts wired transmission and processing information or adopts Bluetooth, WIFI, GPS and GPRS, the cost is high, the information is transmitted and processed by adopting the Bluetooth and the WIFI, the distance is limited, the information is transmitted and processed by adopting the GPS and the GPRS, the radiation is larger, and the success rate of the technology in the aspects of finding objects to be protected, preventing children from losing and getting trod is lower.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the above-mentioned problems in the prior art. In view of the above, the present invention needs to provide a multi-directional intelligent abandon-proof alarm device, which can effectively prevent the loss and abandon of the object to be protected, prevent the injury or even fatal injury accident when the child is forgotten to leave the automobile alone, and prevent the child from missing or being abducted.
The invention provides a multidirectional intelligent abandon-prevention alarm device, which is characterized by comprising: prevent abandoning subassembly and warning display module, prevent abandoning the subassembly and include locator, environment imager and first signal transceiver, the warning display module pass through the second signal transceiver with first signal transceiver data connection, with prevent abandoning the subassembly and keep away from when warning display module predetermined distance, the locator sends locating information, the environment imager generates environment image information to the position environment of its place within range around the predetermined range, and will locating information environment image information feeds back to the warning display module, the warning display module is showing locating information with alarm signal is sent out in the time of image information.
According to one embodiment of the invention, the first signal transceiver and the second signal transceiver are both terahertz mutual inductance transceivers.
According to an embodiment of the present invention, the abandon-proof assembly further includes a first main board, a sensing module electrically connected to the first main board, and a self-activated switch, where when the abandon-proof assembly is mounted on an object to be protected, the self-activated switch is activated, the sensing module receives information of the object to be protected and transmits the information to the environment imager and the first signal transceiver, and the locator, the environment imager, and the first signal transceiver are electrically connected to the first main board.
According to an embodiment of the present invention, the alarm display assembly includes a housing, a second main board and a display, the second main board is disposed in the housing, the display is disposed on the housing, the second main board is separately provided with a controller, a data processing memory and an alarm indication unit, the second signal transceiver is disposed on the second main board, and the controller receives the positioning information and the environment image information through the second signal transceiver and then transmits the positioning information and the environment image information to the display and the data processing memory.
According to an embodiment of the present invention, an alarm and a first indicator light are further disposed on the first main board, and the alarm and the first indicator light are electrically connected to the first main board.
According to one embodiment of the invention, the alarm indicating unit comprises a loudspeaker and a second indicating lamp which are arranged on the shell, and the loudspeaker and the second indicating lamp are electrically connected with the second main board.
According to an embodiment of the present invention, the abandonment prevention assembly further includes a first power storage assembly electrically connected to the first main board.
According to an embodiment of the present invention, the alarm display module further includes a second power storage module electrically connected to the second main board.
According to one embodiment of the invention, the alarm display assembly is an intelligent terminal device provided with a terahertz mutual inductance transceiver.
According to one embodiment of the invention, the intelligent terminal device is any one of intelligent terminals, such as a smart phone, a tablet computer, a smart bracelet, a key ring, a car key, a small robot and the like.
The multi-directional intelligent abandon-proof alarm device of the invention adopts an imaging device which is different from the traditional imaging device without a shooting lens and a camera, and generates environment image information for sensing and imaging products within the range of about 10 meters around the abandon-proof component by an environment imager, and data transmission is carried out through the terahertz mutual inductance transceiver, positioning information and environment image information of the abandon-prevention component are fed back to the alarm display component, the display sends alarm information after carrying out digital display and storage on the positioning information and the environment image information, so as to prompt the user of the information of the object to be protected, effectively prevent the object to be protected from being lost and abandoned, and has remarkable use effect in the aspect of injury or even fatal injury accidents when children are forgotten to take place in the automobile alone, meanwhile, the children can be prevented from being lost or abducted, wherein the alarm sound of the alarm plays a role in frightening suspects who abduct the children; on the other hand, the alarm display component is an intelligent terminal device provided with a terahertz mutual inductance transceiver, and is not limited to any one of intelligent terminals such as smart phones, tablet computers, smart bracelets, key rings, car keys and small robots, and meanwhile, the abandon-prevention component can also be in communication connection with a plurality of alarm display components, so that the multi-directional alarm prompting function is achieved.
Drawings
Fig. 1 is a schematic structural diagram of a multidirectional intelligent abandon-prevention alarm device according to the invention.
Fig. 2 is a schematic structural view of an anti-abandon assembly according to the present invention.
Fig. 3 is a perspective view of an alarm indicating assembly according to the present invention.
Fig. 4 is a schematic view of the internal structure of the alarm indicating assembly according to the present invention.
Fig. 5 is a schematic diagram of an environment imager according to the present invention.
Fig. 6 is a schematic diagram of the structure of a self-energizing switch according to the present invention.
Reference numerals: 1-an anti-abandon component; 2-an alarm display component; 3-a second signal transceiver; 11-a locator; 12-an environmental imager; 13-a first signal transceiver; 14-a first motherboard; 15-a sensing module; 16-a self-energizing switch; 17-an alarm; 18-a first indicator light; 19-a first electrical storage component; 21-a housing; 22-a second main board; 23-a display; 24-a controller; 25-data processing memory; 26-an alarm indication unit; 27-a second electrical storage component; 121-radio wave transmitter; 122-an electric wave absorber; 161-metal sheet; 162-a magnetic field; 163-a processor; 164-a switch; 261-a loudspeaker; 262-second indicator light.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
As shown in fig. 1 to 4, a multidirectional intelligent abandon-prevention alarm device includes: the abandon-proof assembly 1 and the alarm display assembly 2, the abandon-proof assembly 1 comprises a positioner 11, an environment imager 12 and a first signal transceiver 13, the alarm display assembly 2 is in data connection with the first signal transceiver 13 through a second signal transceiver 3, when the abandon-proof assembly 1 is far away from the alarm display assembly 2 by a preset distance, the preset distance is more than or equal to 15 meters, wherein the first signal transceiver 13 and the second signal transceiver 3 are terahertz mutual inductance transceivers, the positioner 11 sends out positioning information, the environment imager 12 generates environment image information for the position environment in the preset range around the environment where the environment imager is located, and feeds back the positioning information and the environment image information to the alarm display assembly 2, and the alarm display assembly 2 sends out an alarm signal while displaying the positioning information and the image information.
The multi-directional intelligent abandon-proof alarm device of the invention adopts an imaging device which is different from the traditional imaging device without a shooting lens and a camera, and generates environment image information for sensing and imaging products within the range of about 10 meters around the abandon-proof component 1 by an environment imager 12, and data transmission is carried out through the terahertz mutual inductance transceiver, the positioning information and the environment image information of the abandon-proof component 1 are fed back to the alarm display component 2, the display 23 sends alarm information after carrying out digital display and storage on the positioning information and the environment image information, so as to prompt the user of the information of the object to be protected, effectively prevent the object to be protected from being lost and abandoned, and has remarkable use effect in the aspect of injury or even fatal injury accidents when children are forgotten to take place in the automobile alone, meanwhile, the children can be prevented from being lost or abducted, wherein the alarm sound of the alarm 17 plays a role in frightening suspects who abduct the children; on the other hand, alarm display component 2 can be the intelligent terminal equipment who disposes the mutual transceiver of terahertz now, is not limited to any one in smart mobile phone, panel computer, intelligent bracelet, key ring, intelligent terminals such as car key, little robot, simultaneously, prevents abandoning subassembly 1 also can be connected with a plurality of alarm display component 2 communication, reaches multidirectional formula suggestion warning effect.
As shown in fig. 1 to 6, the abandon prevention assembly 1 further includes a first main board 14, a sensing module 15 and a self-activated switch 16 electrically connected to the first main board 14, when the abandon prevention assembly 1 is mounted on an object to be protected, the self-activated switch 16 is activated, the sensing module 15 receives information of the object to be protected and transmits the information to the environment imager 12 and the first signal transceiver 13, and the locator 11, the environment imager 12 and the first signal transceiver 13 are electrically connected to the first main board 14.
The alarm display component 2 comprises a casing 21, a second main board 22 and a display 23, the second main board 22 is arranged in the casing 21, the display 23 is arranged on the casing 21, the second main board 22 is respectively provided with a controller 24, a data processing memory 25 and an alarm indication unit 26, wherein the second signal transceiver 3 is arranged on the second main board 22, and the controller 24 receives positioning information and environment image information through the second signal transceiver 3 and then transmits the positioning information and the environment image information to the display 23 and the data processing memory 25.
The environment imager 12 includes an electric wave emitter 121 and an electric wave absorber 122, and the imaging principle is that electric waves with certain frequency are emitted to different directions through the electric wave emitter 121, the electric waves are reflected back after encountering an obstacle, and are absorbed by the electric wave absorber 122 and then transmitted to the data processing memory 25 to be processed, images existing in the surrounding environment of the environment imager 12 are analyzed and solved, environment image information is read on the display 23 through the operation controller 24, the purpose of finding an object to be protected can be quickly achieved through analysis and comparison of the environment image information, and loss and abandon of the object are effectively prevented.
The self-excitation switch 16 comprises a metal sheet 161, a magnetic field 162, a processor 163 and a switch 164, and the working principle is that when an object to be protected is contacted with the anti-abandon component 1 or the anti-abandon component 1 is arranged on the object to be protected, the metal sheet 161 is triggered to cut the magnetic field 162, information of the change of the magnetic flux is conducted to the processor 163 to be processed, and the processor 163 sends out a command signal to drive the switch 164 to be opened or closed
The first main board 14 is further provided with an alarm 17 and a first indicator light 18, and the alarm 17 and the first indicator light 18 are electrically connected to the first main board 14.
The alarm indicating unit 26 includes a speaker 261 and a second indicator lamp 262 provided on the housing 21, and both the speaker 262 and the second indicator lamp 262 are electrically connected to the second main board 22.
As shown in fig. 1, the usage and principle of the multi-directional intelligent abandon-prevention alarm device of the invention are as follows:
when the abandon-proof component 1 is arranged on an object to be protected, the self-excitation switch 16 is started, the induction module 15 receives the information of the object to be protected and then transmits the information to the environment imager 12 and the first signal transceiver 13, the environment imager 12 generates environment image information and the positioner 11 generates positioning information and transmits the information to the first signal transceiver 13, by terahertz transmission of information, after the second signal transceiver 3 receives the information of the first signal transceiver 13, the information of the object to be protected, the positioning information and the environmental imaging information are fed back to the controller 24, the controller 24 transmits the three information to the display 23 and the data processing memory 25, and the abandon-proof component 1 and the alarm display component 2 form an abandon-proof system together through the first signal transceiver 13 (terahertz signal transceiver) and the second signal transceiver 3 (terahertz signal transceiver);
it should be understood that the object to be protected provided with the abandon-proof component 1 can be searched by operating the controller 24, the controller 24 sends a searching signal to the alarm 17 of the abandon-proof component 1, and the alarm 17 makes a sound to achieve the purpose of finding the object to be protected;
when an object to be protected provided with the abandon-proof component 1 is far away from the alarm display component 2 for more than 15 meters, the abandon-proof component 1 and the alarm display component 2 lose contact with each other, the abandon-proof component 1 transmits a signal to be protected which loses contact to the alarm 17, the alarm 17 gives an alarm sound, the alarm display component 2 transmits the signal to be protected which loses contact to the loudspeaker 261, the loudspeaker 261 gives a sound to remind a user holding the alarm display component 2, the user operation controller 24 searches for environmental influence information and positioning information provided with the abandon-proof component 1, when the abandon-proof component 1 is arranged on a child, when the child is singly forgotten in a car, the damage condition of the child can be effectively prevented, the child can be prevented from being lost or being abducted, and it is understood that the signal to be protected which loses contact comprises object information, Environmental image information and positioning information.
As shown in fig. 2, the abandon-proof assembly 1 further includes a first power storage assembly 19 electrically connected to the first main board 14, so as to satisfy the use of the abandon-proof assembly 1 in a long-time working state and improve the success rate of finding the object to be protected.
As shown in fig. 4, the alarm display module 2 further includes a second power storage module 27 electrically connected to the second main board 22, so as to satisfy the use of the alarm display module 2 in a long-time working state and improve the success rate of finding the object to be protected.
As shown in fig. 1, in an embodiment, the alarm display component 2 is a box structure with a display function, and the search operation of the object to be protected can be quickly completed through data connection between the alarm display component 2 of the box structure and the abandon-prevention component 1.
As shown in fig. 1, in other embodiments, the alarm display component 2 is an intelligent terminal device configured with a terahertz mutual inductance transceiver, so as to control the controller 24 through the intelligent terminal device to complete fast search of an object to be protected, or perform effective prevention operation on children for preventing missing or being abducted, it should be understood that the intelligent terminal device may be any one of intelligent terminal devices such as a smartphone, a tablet computer, an intelligent bracelet, a key ring, a car key, a small robot, and the like, on the other hand, a small program or APP and other modular designs may be installed in the intelligent terminal device, through a fast operation process of the controller 24, a search process of the object to be protected is completed, wherein the anti-abandon component 1 may be in communication connection with a plurality of alarm display components 2, so as to achieve multidirectional prompting alarm.
Although embodiments of the present invention have been shown and described, it is understood that the embodiments are illustrative and not restrictive, and that any modifications, equivalents, improvements and the like which come within the spirit and principle of the invention are intended to be included within the scope of the invention.
Claims (10)
1. The utility model provides a multidirectional intelligence alarm device that abandons, its characterized in that includes: prevent abandoning subassembly and warning display module, prevent abandoning the subassembly and include locator, environment imager and first signal transceiver, the warning display module pass through the second signal transceiver with first signal transceiver data connection, with prevent abandoning the subassembly and keep away from when warning display module predetermined distance, the locator sends locating information, the environment imager generates environment image information to the position environment of its place within range around the predetermined range, first signal transceiver will locating information environment image information transmits extremely warning display module, warning display module is showing locating information with alarm signal is sent out in the time of image information.
2. The multi-directional intelligent abandon-prevention alarm device as claimed in claim 1, wherein the first signal transceiver and the second signal transceiver are terahertz mutual inductance transceivers.
3. The multidirectional intelligent desertion alarm device of claim 1, wherein the desertion prevention assembly further comprises a first main board, a sensing module and a self-excited switch, the sensing module is electrically connected with the first main board, when the desertion prevention assembly is installed on an object to be protected, the self-excited switch is started, the sensing module receives information of the object to be protected and transmits the information to the environment imager and the first signal transceiver, and the positioner, the environment imager and the first signal transceiver are electrically connected to the first main board.
4. The multi-directional intelligent abandon-prevention alarm device according to claim 1, wherein the alarm display assembly comprises a housing, a second main board and a display, the second main board is arranged in the housing, the display is arranged on the housing, the second main board is respectively provided with a controller, a data processing memory and an alarm indication unit, the second signal transceiver is arranged on the second main board, and the controller receives the positioning information and the environment image information through the second signal transceiver and then transmits the positioning information and the environment image information to the display and the data processing memory.
5. A multidirectional intelligent abandon-prevention alarm device according to claim 3, wherein an alarm and a first indicator light are further arranged on the first main board, and the alarm and the first indicator light are electrically connected to the first main board.
6. The multi-directional intelligent abandon-prevention alarm device as claimed in claim 4, wherein the alarm indication unit comprises a speaker and a second indicator light arranged on the housing, and the speaker and the second indicator light are both electrically connected with the second main board.
7. The multi-directional intelligent desertion prevention alarm device of claim 3, wherein the desertion prevention assembly further comprises a first electrical storage assembly electrically connected to the first motherboard.
8. The multi-directional intelligent abandon-prevention alarm device as claimed in claim 4, wherein the alarm display assembly further comprises a second power storage assembly electrically connected to the second main board.
9. The multidirectional intelligent abandon-prevention alarm device as claimed in claim 1, wherein the alarm display component is an intelligent terminal device equipped with a terahertz mutual inductance transceiver.
10. The multi-directional intelligent abandon-prevention alarm device according to claim 9, wherein the intelligent terminal device is any one of intelligent terminals not limited to smart phones, tablet computers, smart bracelets, key rings, car keys, small robots and the like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010281504.0A CN113516826A (en) | 2020-04-10 | 2020-04-10 | Multidirectional intelligent abandon-prevention alarm device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010281504.0A CN113516826A (en) | 2020-04-10 | 2020-04-10 | Multidirectional intelligent abandon-prevention alarm device |
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| CN113516826A true CN113516826A (en) | 2021-10-19 |
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| CN202010281504.0A Pending CN113516826A (en) | 2020-04-10 | 2020-04-10 | Multidirectional intelligent abandon-prevention alarm device |
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Citations (7)
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| CN201178427Y (en) * | 2008-04-09 | 2009-01-07 | 深圳和而泰智能控制股份有限公司 | Children care taking apparatus |
| CN103235298A (en) * | 2013-05-08 | 2013-08-07 | 西安电子科技大学 | Microwave related imaging system and imaging method based on thinned array |
| CN204838394U (en) * | 2015-07-20 | 2015-12-09 | 海宁飘泊路箱包有限公司 | Intelligence prevents losing a packet system |
| TW201821015A (en) * | 2016-12-06 | 2018-06-16 | 財團法人金屬工業研究發展中心 | Microwave imaging system |
| CN109753948A (en) * | 2019-01-28 | 2019-05-14 | 珠海格力电器股份有限公司 | Microwave radar-based air conditioner control method and device, storage medium and processor |
| CN209328182U (en) * | 2019-02-21 | 2019-08-30 | 马志敏 | Warning device and system |
| CN209765707U (en) * | 2019-05-30 | 2019-12-10 | 成都航空职业技术学院 | anti-loss device for children |
-
2020
- 2020-04-10 CN CN202010281504.0A patent/CN113516826A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201178427Y (en) * | 2008-04-09 | 2009-01-07 | 深圳和而泰智能控制股份有限公司 | Children care taking apparatus |
| CN103235298A (en) * | 2013-05-08 | 2013-08-07 | 西安电子科技大学 | Microwave related imaging system and imaging method based on thinned array |
| CN204838394U (en) * | 2015-07-20 | 2015-12-09 | 海宁飘泊路箱包有限公司 | Intelligence prevents losing a packet system |
| TW201821015A (en) * | 2016-12-06 | 2018-06-16 | 財團法人金屬工業研究發展中心 | Microwave imaging system |
| CN109753948A (en) * | 2019-01-28 | 2019-05-14 | 珠海格力电器股份有限公司 | Microwave radar-based air conditioner control method and device, storage medium and processor |
| CN209328182U (en) * | 2019-02-21 | 2019-08-30 | 马志敏 | Warning device and system |
| CN209765707U (en) * | 2019-05-30 | 2019-12-10 | 成都航空职业技术学院 | anti-loss device for children |
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