CN112229431B - Sensor isolating device for Internet of things - Google Patents
Sensor isolating device for Internet of things Download PDFInfo
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- CN112229431B CN112229431B CN202011114292.3A CN202011114292A CN112229431B CN 112229431 B CN112229431 B CN 112229431B CN 202011114292 A CN202011114292 A CN 202011114292A CN 112229431 B CN112229431 B CN 112229431B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
- G01D11/24—Housings ; Casings for instruments
- G01D11/245—Housings for sensors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/06—Hermetically-sealed casings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The invention discloses a sensor isolation device for the Internet of things, which comprises an isolation frame and a fixed frame fixedly connected between two sides of the inner wall of the isolation frame, wherein dehumidification isolation mechanisms are arranged on two sides of the inner wall of the isolation frame; the dehumidification isolation mechanism comprises a movable frame and a fixed rod, fixed grooves are formed in two sides of the isolation frame, two ends of the fixed rod are fixedly connected with the inner walls of the fixed grooves, heating wires are fixedly connected to the inner walls of the movable grooves, and moisture absorption sponges are fixedly connected to the surfaces of the fixed rods. This sensor isolating device for thing networking can realize keeping apart the protection between moisture in the outside air and dust and the sensor, avoids moisture in the air and dust to influence the stability and the transmission efficiency of the inside data transmission of sensor, has prolonged the life of sensor, adopts the setting of solar energy power generation technique simultaneously, has practiced thrift the electric power resource, need not extra electric power cost.
Description
Technical Field
The invention relates to the technical field of Internet of things, in particular to a sensor isolation device for the Internet of things.
Background
The sensor is a detection device, can feel the measured information, and can convert the felt information into an electric signal or other information output in a required form according to a certain rule so as to meet the requirements of information transmission, processing, storage, display, recording, control and the like, and the sensor is characterized by comprising: the sensor is a primary link for realizing automatic detection and automatic control, and the sensor is present and developed to make an object have senses of touch, taste, smell and the like, so that the object slowly becomes alive, and the sensor is generally divided into ten categories of thermosensitive elements, photosensitive elements, gas sensitive elements, force sensitive elements, magnetic sensitive elements, humidity sensitive elements, sound sensitive elements, radioactive ray sensitive elements, color sensitive elements, taste sensitive elements and the like according to the basic sensing functions of the sensor.
When the existing sensor assembly is used under the condition of complex and severe environment, moisture and dust in the outside air enter the sensor assembly due to the fact that the existing sensor assembly is exposed to the outside and an isolation protection mechanism is not arranged, so that the stability and the transmission efficiency of data transmission in the sensor are affected, and meanwhile, the service life of the sensor is shortened.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a sensor isolation device for the Internet of things, which solves the problems that moisture and dust in the outside air enter into a sensor assembly due to the fact that a sensor is exposed outside and an isolation protection mechanism is not arranged, so that the stability and the transmission efficiency of data transmission in the sensor are influenced, and the service life of the sensor is shortened.
(II) technical scheme
In order to realize the purpose, the invention is realized by the following technical scheme: the utility model provides a sensor isolating device for thing networking, includes isolation frame and fixed frame of fixed connection between isolation frame inner wall both sides, the both sides of isolation frame inner wall all are provided with dehumidification isolating mechanism.
The utility model discloses a dehumidification isolation mechanism, including dehumidification isolation mechanism, fixed slot, movable block and fixed rod, the fixed slot has all been seted up to the both sides of isolation frame, the both ends of fixed rod all with the inner wall fixed connection of fixed slot, the movable groove has been seted up to the inside of fixed rod, the inner wall fixedly connected with heater strip in movable groove, the surperficial fixedly connected with moisture absorption sponge of fixed rod, the top sliding connection of sliding block and isolation frame inner wall is passed through at the top of movable frame, the top sliding connection of movable block and fixed frame is passed through to the bottom of movable frame, one side fixedly connected with active carbon filter screen of movable frame, the opposite side fixedly connected with sealing washer of movable frame, and one side of sealing washer contacts with the inner wall of isolation frame, the equal fixedly connected with swash plate in both sides of isolation frame.
Preferably, the both sides at isolation frame top all are through supporting leg fixedly connected with solar panel, the middle part fixedly connected with fixation box at isolation frame top, and the bottom of fixation box inner wall is from a left side to the right side fixedly connected with battery and dc-to-ac converter in proper order.
Preferably, the bottom of fixed frame inner wall is through connecting block fixedly connected with double-rod pneumatic cylinder, the equal fixedly connected with slide bar of two outputs of double-rod pneumatic cylinder, the bottom of slide bar and the bottom sliding connection of fixed frame inner wall.
Preferably, the top end of the sliding rod penetrates through the fixed frame and extends to the top of the fixed frame, and one side of the surface of the sliding rod and the top of the fixed frame are in threaded connection with a clamping assembly.
Preferably, the two sides of the top of the fixing frame are fixedly connected with air suction nozzles, and the bottoms of the air suction nozzles are communicated with an air suction pipe.
Preferably, the bottom of aspiration tube runs through fixed frame and extends to the bottom of fixed frame, the equal fixedly connected with installing frame in bottom of isolation frame both sides.
Preferably, the inner wall of the mounting frame is fixedly connected with a cooling fan, and one end of the air exhaust pipe extending to the bottom of the fixing frame is communicated with one side of the mounting frame.
Preferably, the output end of the solar panel is electrically connected with the input end of the storage battery through a wire, and the output end of the storage battery is electrically connected with the input end of the inverter through a wire.
(III) advantageous effects
The invention provides a sensor isolation device for the Internet of things. The method has the following beneficial effects:
(1) the sensor isolation device for the Internet of things comprises a movable frame and a fixed rod through a dehumidification isolation mechanism, wherein fixed grooves are formed in two sides of the isolation frame, two ends of the fixed rod are fixedly connected with the inner walls of the fixed grooves, a movable groove is formed in the fixed rod, a heating wire is fixedly connected to the inner wall of the movable groove, a moisture absorption sponge is fixedly connected to the surface of the fixed rod, the top of the movable frame is slidably connected with the top of the inner wall of the isolation frame through a sliding block, the bottom of the movable frame is slidably connected with the top of the fixed frame through a movable block, an active carbon filter screen is fixedly connected to one side of the movable frame, a sealing ring is fixedly connected to the other side of the movable frame, one side of the sealing ring is in contact with the inner wall of the isolation frame, inclined plates are fixedly connected to two sides of the top of the isolation frame, a solar panel is fixedly connected to two sides of the top of the isolation frame through supporting legs, and a fixed box is fixedly connected to the middle of the top of the isolation frame, and the bottom of the inner wall of the fixed box is fixedly connected with the storage battery and the inverter from left to right in sequence, so that the moisture and the dust in the outside air can be isolated and protected from the sensor, the influence of the moisture and the dust in the air on the stability and the transmission efficiency of the data transmission inside the sensor is avoided, the service life of the sensor is prolonged, meanwhile, the solar power generation technology is adopted, the power resource is saved, and the extra power cost is not needed.
(2) This sensor isolating device for thing networking, the bottom through fixed frame inner wall is through connecting block fixedly connected with double-pole pneumatic cylinder, the equal fixedly connected with slide bar of two output ends of double-pole pneumatic cylinder, the bottom of slide bar and the bottom sliding connection of fixed frame inner wall, the top of slide bar runs through fixed frame and extends to the top of fixed frame, one side on slide bar surface and the top threaded connection who is located fixed frame have clamping components, can realize carrying out spacing clamp to the sensor, prevent that isolating device when receiving external collision, thereby the sensor easily takes place to damage the problem that influences signal transmission.
(3) This sensor isolating device for thing networking, the equal fixedly connected with suction nozzle in both sides through fixed frame top, the bottom intercommunication of suction nozzle has the exhaust tube, the bottom of exhaust tube runs through fixed frame and extends to the bottom of fixed frame, the equal fixedly connected with installing frame in bottom of isolation frame both sides, the inner wall fixedly connected with radiator fan of installing frame, the one end that the exhaust tube extends to fixed frame bottom is linked together with one side of installing frame, can realize transmitting the isolating device outside with the heat that the sensor bottom thermovent gived off fast, the purpose of ventilation that dispels the heat has been realized.
Drawings
FIG. 1 is a perspective view of the structure of the present invention;
FIG. 2 is a cross-sectional view of the spacer frame structure of the present invention;
FIG. 3 is a perspective view of the movable frame structure of the present invention;
FIG. 4 is a cross-sectional view of a fixation rod structure of the present invention;
FIG. 5 is a cross-sectional view of the stationary box structure of the present invention;
FIG. 6 is a schematic structural diagram of a heat dissipation fan according to the present invention;
fig. 7 is a schematic block diagram of the architecture of the system of the present invention.
In the figure: 1-isolation frame, 2-fixed frame, 3-dehumidification isolation mechanism, 31-movable frame, 32-fixed rod, 33-fixed groove, 34-movable groove, 35-heating wire, 36-moisture absorption sponge, 37-sliding block, 38-activated carbon filter screen, 39-sealing ring, 310-sloping plate, 4-solar panel, 5-fixed box, 6-storage battery, 7-inverter, 8-double-rod hydraulic cylinder, 9-sliding rod, 10-clamping component, 11-suction nozzle, 12-suction pipe, 13-mounting frame, 14-cooling fan.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1-7, an embodiment of the present invention provides a technical solution: a sensor isolation device for the Internet of things can realize isolation and protection between moisture and dust in the outside air and a sensor, avoid the influence of the moisture and dust in the air on the stability and transmission efficiency of data transmission inside the sensor, prolong the service life of the sensor, simultaneously adopt the arrangement of a solar power generation technology, save electric power resources, and do not need additional electric power cost, and comprises an isolation frame 1 and a fixed frame 2 fixedly connected between two sides of the inner wall of the isolation frame 1, wherein two sides of the top of the fixed frame 2 are both fixedly connected with air suction nozzles 11, the bottom of the air suction nozzles 11 is communicated with an air suction pipe 12, the bottom end of the air suction pipe 12 penetrates through the fixed frame 2 and extends to the bottom of the fixed frame 2, the bottoms of two sides of the isolation frame 1 are both fixedly connected with a mounting frame 13, the inner wall of the mounting frame 13 is fixedly connected with a cooling fan 14, and can realize the quick transmission of heat emitted by a cooling port at the bottom of the sensor to the outside of the isolation device, the purposes of heat dissipation and ventilation are realized, one end of the exhaust pipe 12 extending to the bottom of the fixed frame 2 is communicated with one side of the mounting frame 13, the bottom of the inner wall of the fixed frame 2 is fixedly connected with a double-rod hydraulic cylinder 8 through a connecting block, the double-rod hydraulic cylinder 8 is a hydraulic cylinder with piston rods on both sides of a piston and can realize constant-speed reciprocating motion, the hydraulic cylinder can be basically divided into a cylinder barrel and a cylinder cover, the piston and the piston rod, a sealing device, a buffering device and an exhaust device, two output ends of the double-rod hydraulic cylinder 8 are both fixedly connected with a sliding rod 9, the top end of the sliding rod 9 penetrates through the fixed frame 2 and extends to the top of the fixed frame 2, one side of the surface of the sliding rod 9 and the top of the fixed frame 2 are in threaded connection with a clamping component 10, the limiting and clamping of a sensor can be realized, and the isolating device is prevented from being collided by the outside, thereby the sensor easily takes place to damage problem that influences signal transmission, clamping component 10 includes threaded rod and grip block, make the grip block remove to the direction of sensor through rotating the threaded rod, then press from both sides tight fixedly to the sensor, the bottom of slide bar 9 and the bottom sliding connection of fixed frame 2 inner walls, the both sides at 1 top of isolation frame are all through supporting leg fixedly connected with solar panel 4, solar panel 4's output passes through wire and battery 6's input electric connection, and battery 6's output passes through wire and inverter 7's input electric connection, the middle part fixedly connected with fixed box 5 at 1 top of isolation frame, and the bottom of fixed box 5 inner wall is from a left side to the right side fixedly connected with battery 6 and inverter 7 in proper order, the device that chemical energy converts the electric energy into the electric energy is called chemical battery, generally for short, after discharging, can make inside active material regeneration (be the chemical energy with the electric energy storage) with the mode of charging once more when needing to discharge The chemical energy is converted into electric energy, the battery is called as a storage battery 6 and also called as a secondary battery, and the dehumidifying and isolating mechanisms 3 are arranged on two sides of the inner wall of the isolating frame 1; dehumidification isolating mechanism 3 includes movable frame 31 and dead lever 32, fixed slot 33 has all been seted up to the both sides of isolation frame 1, the both ends of dead lever 32 all with the inner wall fixed connection of fixed slot 33, movable groove 34 has been seted up to the inside of dead lever 32, the inner wall fixedly connected with heater strip 35 of movable groove 34, the fixed surface of dead lever 32 is connected with moisture absorption sponge 36, sliding block 37 and the top sliding connection who keeps apart 1 inner wall are passed through to the top of movable frame 31, the top sliding connection of movable block and fixed frame 2 is passed through to the bottom of movable frame 31, one side fixedly connected with active carbon filter screen 38 of movable frame 31, the opposite side fixedly connected with sealing washer 39 of movable frame 31, and one side of sealing washer 39 contacts with the inner wall of isolation frame 1, the equal fixedly connected with swash plate 310 in both sides of isolation frame 1.
When the sensor fixing device is used, the movable door of the isolation frame 1 is opened, the sensor is placed in the middle of the top of the fixing frame 2, then the double-rod hydraulic cylinder 8 is started, the double-rod hydraulic cylinder 8 drives the sliding rod 9 to move relatively through two extending ends, the bottom end of the sliding rod 9 slides at the bottom of the inner wall of the fixing frame 2, after the sensor is moved to a proper position, the sensor is clamped through the clamping assembly 10, the clamping assembly 10 comprises a threaded rod and a clamping plate, the clamping plate is moved towards the sensor by rotating the threaded rod, and then the sensor is clamped and fixed;
when the sensor is used, outside air enters the isolation frame 1 through the fixing groove 33, firstly, moisture in the air is adsorbed through the moisture absorption sponge 36, then dust in the air enters the movable frame 31, harmful gas and dust in the air are filtered and collected through the activated carbon filter screen 38 on the movable frame 31, the filtered air can enter the isolation frame 1, after the moisture absorption sponge 36 absorbs a large amount of moisture, the heating wire 35 is started, heat generated by the heating wire 35 can be transmitted to the moisture absorption sponge 36 through the fixing rod 32, the fixing rod 32 is made of high-heat-conductivity materials, the moisture absorption sponge 36 absorbs the heat to evaporate the moisture, and the moisture absorption sponge 36 can be recycled;
the sensor is at the in-process of using, start radiator fan 14, radiator fan 14 accessible exhaust tube 12 and suction nozzle 11 take out the heat that gives off the sensor bottom, the radiating efficiency is improved, inside the setting of swash plate 310 can prevent that the rainwater from entering into isolation frame 1, solar panel 4 absorbs external light energy and converts the electric energy into and saves in battery 6, can convert the direct current in the battery 6 into the alternating current through inverter 7, thereby give heater strip 35, two pole pneumatic cylinder 8 and radiator fan 14 and supply power, power resource has been practiced thrift.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. The utility model provides a sensor isolating device for thing networking, includes fixed frame (2) between isolation frame (1) inner wall both sides of isolation frame (1) and fixed connection, its characterized in that: both sides of the inner wall of the isolation frame (1) are provided with dehumidification isolation mechanisms (3);
the dehumidifying and isolating mechanism (3) comprises a movable frame (31) and a fixed rod (32), fixed grooves (33) are formed in two sides of the isolating frame (1), two ends of the fixed rod (32) are fixedly connected with the inner walls of the fixed grooves (33), a movable groove (34) is formed in the fixed rod (32), heating wires (35) are fixedly connected with the inner walls of the movable groove (34), moisture absorbing sponge (36) is fixedly connected with the surface of the fixed rod (32), the top of the movable frame (31) is slidably connected with the top of the inner wall of the isolating frame (1) through a sliding block (37), the bottom of the movable frame (31) is slidably connected with the top of the fixed frame (2) through a movable block, an active carbon filter screen (38) is fixedly connected to one side of the movable frame (31), and a sealing ring (39) is fixedly connected to the other side of the movable frame (31), one side of the sealing ring (39) is in contact with the inner wall of the isolation frame (1), and inclined plates (310) are fixedly connected to the two sides of the isolation frame (1);
the solar panel (4) is fixedly connected to the two sides of the top of the isolation frame (1) through supporting legs, the fixed box (5) is fixedly connected to the middle of the top of the isolation frame (1), the storage battery (6) and the inverter (7) are sequentially and fixedly connected to the bottom of the inner wall of the fixed box (5) from left to right, the double-rod hydraulic cylinder (8) is fixedly connected to the bottom of the inner wall of the fixed frame (2) through a connecting block, the sliding rods (9) are fixedly connected to the two output ends of the double-rod hydraulic cylinder (8), the bottom end of each sliding rod (9) is slidably connected to the bottom of the inner wall of the fixed frame (2), the top ends of the sliding rods (9) penetrate through the fixed frame (2) and extend to the top of the fixed frame (2), the clamping assemblies (10) are in threaded connection with the top of the fixed frame (2) on one side of the surface of each sliding rod (9), and the suction nozzles (11) are fixedly connected to the two sides of the top of the fixed frame (2), the bottom intercommunication of suction nozzle (11) has exhaust tube (12), the bottom of exhaust tube (12) runs through fixed frame (2) and extends to the bottom of fixed frame (2), keep apart the equal fixedly connected with installing frame (13) in bottom of frame (1) both sides, the inner wall fixedly connected with radiator fan (14) of installing frame (13), one end that exhaust tube (12) extended to fixed frame (2) bottom is linked together with one side of installing frame (13).
2. The sensor isolation device for the internet of things of claim 1, wherein: the output end of the solar panel (4) is electrically connected with the input end of the storage battery (6) through a wire, and the output end of the storage battery (6) is electrically connected with the input end of the inverter (7) through a wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011114292.3A CN112229431B (en) | 2020-10-19 | 2020-10-19 | Sensor isolating device for Internet of things |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011114292.3A CN112229431B (en) | 2020-10-19 | 2020-10-19 | Sensor isolating device for Internet of things |
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| Publication Number | Publication Date |
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| CN112229431A CN112229431A (en) | 2021-01-15 |
| CN112229431B true CN112229431B (en) | 2022-07-08 |
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| CN202011114292.3A Active CN112229431B (en) | 2020-10-19 | 2020-10-19 | Sensor isolating device for Internet of things |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112984311B (en) * | 2021-03-08 | 2021-11-09 | 南京信息工程大学 | Data analysis processing apparatus based on thing networking |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050063592A (en) * | 2003-12-22 | 2005-06-28 | 삼성전자주식회사 | Air purifier |
| CN207098307U (en) * | 2017-07-29 | 2018-03-13 | 福建通用同溢电气有限公司 | A kind of low-tension switch cabinet |
| CN209485392U (en) * | 2018-12-20 | 2019-10-11 | 嘉瑞金属制品(深圳)有限公司 | It is a kind of with dust-proof sensor outer housing |
| CN210092580U (en) * | 2019-07-02 | 2020-02-18 | 徐州瓦特电气科技有限公司 | Ring main unit intelligent dehumidifying device |
| CN110307604A (en) * | 2019-08-01 | 2019-10-08 | 上海南华兰陵电气有限公司 | Drainage-free dehumidifier |
| CN210399341U (en) * | 2019-08-15 | 2020-04-24 | 广州广日电梯工业有限公司 | Device for preventing elevator car from producing condensed water |
| CN210838590U (en) * | 2019-11-29 | 2020-06-23 | 苏州达尔伟力电气科技有限公司 | Dehumidification dust type outdoor distribution box |
| CN211452366U (en) * | 2020-02-07 | 2020-09-08 | 南通珂艾宸网络技术有限公司 | Protector for internet of things sensor |
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