CN108492493A - A kind of Safe production of chemical industry caution system - Google Patents
A kind of Safe production of chemical industry caution system Download PDFInfo
- Publication number
- CN108492493A CN108492493A CN201810285068.7A CN201810285068A CN108492493A CN 108492493 A CN108492493 A CN 108492493A CN 201810285068 A CN201810285068 A CN 201810285068A CN 108492493 A CN108492493 A CN 108492493A
- Authority
- CN
- China
- Prior art keywords
- chemical industry
- detection
- safe production
- caution system
- support base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
- G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
-
- 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
- G08B21/12—Alarms for ensuring the safety of persons responsive to undesired emission of substances, e.g. pollution alarms
- G08B21/14—Toxic gas alarms
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The invention discloses a kind of Safe production of chemical industry caution systems, including：Rectangular base support base, it is oblong hollow-core construction, rectangular base support base lower surface surrounding is equipped with mounting blocks, the mounting blocks lower surface is connected with L-shaped support stabilizer blade, accumulator is installed inside the rectangular base support base, the L-shaped support stabilizer blade is equipped with fastening bolt above lower end, and rectangular base support base upper surface is connected with detection babinet；Arc protective cover can be effectively that monitoring probe blocks dust and rainwater; prevent the interference of flue dust and rainwater to camera; the infrared light of directive gas can be carried out absorption and reflective operation by detection chip; and then judge the property of gas; improve the ability of the monitoring to toxic gas; signal, which transmits black box, can quickly detect with the connection of each monitoring device and alert device and react emergency situations, improve the precise controlling to production safety, further increase safety.
Description
Technical field
The present invention relates to chemical equipment technical field, more particularly to a kind of Safe production of chemical industry caution system.
Background technology
Chemical process has the characteristics that high temperature, high pressure, inflammable, explosive, toxic, harmful, some chemical reactions mostly
Process is especially complex and reaction process is converted along with huge energy, once it is improper abnormal and control occur, it will it gives
The person and property cause serious harm.Socio-economic development and the people propose update more to the security developments of chemical industry
High requirement, safety control system carries out Safe production of chemical industry system in chemical industry can effectively control accident, accelerate
Chemical industry traditional manufacture upgrades.
Chinese patent 201720988733.X discloses flame-proof type Intelligent warning device, mainly solves to warn in the prior art
The poor problem of safety caused by not in time.By using a kind of flame-proof type Intelligent warning device, including Intelligent warning board,
Intelligence warning bracelet, the Intelligent warning board includes board body, explosion-proof shell, battery, central processing unit, signal transceiver, red
Outer detection module, phonetic warning module;The intelligence warning bracelet includes bracelet main body, explosion-proof casing, battery, signal transmitting and receiving
Device, vibration module, in Intelligent warning board, central processing unit and infrared detection module, fingerprint identification module, warning sign signal transceiver, phonetic warning mould
Block is electrically connected;In Intelligent bracelet, warning sign signal transceiver is connect with bracelet signal transceiver by signal, bracelet signal transmitting and receiving
The technical solution that device is electrically connected with vibration module preferably solves the above problem, can be used in intelligence warning.
But caution system in the prior art is not perfect, does not consider the influence of disturbing factor, while to danger source
Recognition capability it is insufficient, can not accurately monitor hazardous chemical production safety management.
Invention content
It is an object of the invention to solve at least the above, and provide the advantages of at least will be described later.
It is a still further object of the present invention to provide a kind of Safe production of chemical industry caution system, arc protective cover can be effective
Dust and rainwater are blocked for monitoring probe, prevents the interference of flue dust and rainwater to camera, detection chip can be by directive gas
Infrared light absorb and reflective operation, and then judge the property of gas, improve the ability of the monitoring to toxic gas, believe
Emergency situations can quickly be detected with the connection of each monitoring device and alert device and react by number transmitting black box, raising pair
The precise controlling of production safety further increases safety, to solve the problems mentioned in the above background technology.
In order to realize these purposes and other advantages according to the present invention, a kind of Safe production of chemical industry warning system is provided
System, technical solution are as follows：Including：
Rectangular base support base is oblong hollow-core construction, and rectangular base support base lower surface surrounding is equipped with mounting blocks, institute
It states mounting blocks lower surface and is connected with L-shaped support stabilizer blade, accumulator, the L-shaped support are installed inside the rectangular base support base
Fastening bolt is installed above stabilizer blade lower end, rectangular base support base upper surface is connected with detection babinet, the detection babinet
One side surface offers long straight rectangular aperture, and the straight rectangular aperture side of length is equipped with positioned at the vertical vertical of detection box house
Column.
Body is slided, the outer surface of vertical column is set to, the sliding body side is connected with mounted on vertical
Tight lock on column, the sliding body other side are equipped with rotating boss, and described rotating boss one end, which is connected with, to be connected to
Horizontal rotating shaft on the inside of long straight rectangular aperture, the horizontal rotating shaft side are connected with thin card, the horizontal rotating shaft upper side
Monitoring probe is installed, the monitoring probe upper surface is connected with arc protective cover, protection is provided on the outside of the monitoring probe
Shell, the protection enclosure interior are equipped with camera.
Flexible rubber hose is folded, one end of horizontal rotating shaft is set to, surrounding is provided with gas detection cell on the outside of the camera,
The gas detection outdoor is provided with seal casinghousing, and described gas detection cell one end is provided with air inlet, the air inlet one
Side is equipped with infrared light supply, and several groups array detection chip, the vertical column side peace are equipped with below the infrared light supply
Equipped with bottom sleeves, the bottom sleeves inside center is nested with flexible stock, and the flexible stock top is equipped with voice reporting
Alert loudspeaker, the audio alert loudspeaker top connect dangerous flashing lamp.
Preferably, the detection babinet upper surface is equipped with ladder-shaped frame, and the ladder-shaped frame both side surface is equipped with
LED display, the LED display both sides are respectively arranged with warning lamp in the daytime and warning at night lamp.
Preferably, solar silicon plate is installed above the ladder-shaped frame, the seal casinghousing is internally provided with anti-corrosion
Film is lost, the detection box house side is equipped with signal and transmits black box.
Preferably, the arc protective cover is the structure of 80 radian sector sheet metals.
Preferably, the connection of the sliding body and vertical column is clearance fit, and the sliding body is round buss
Structure.
Preferably, the group number of the detection chip is 2 groups, and the detection chip is the thin cuboid knot that mutually string is folded
Structure.
Preferably, the monitoring probe, gas detection cell audio alert loudspeaker, dangerous flashing lamp and LED display
Black box is transmitted with signal by conducting wire to connect.
The present invention includes at least following advantageous effect：
1, dangerous audio alert loudspeaker when arriving and dangerous flashing lamp can synchronize work, improve the energy of alarm and notice
Power, the support whole device that L-shaped support stabilizer blade can be stablized, ensures the normal operation of device.
2, LED display can show various electronic information and production operation signal, improve production management intelligence, day
Between warning lamp and warning at night lamp can be used for alarming device, improve the attention of crowd, enhance safe consciousness.
3, anticorrosive film can protected gas detection cell, extend the service life of gas detection cell, solar silicon plate can be with
The use of the energy is improved, environmental pollution is reduced.
4, arc protective cover can be effectively that monitoring probe blocks dust and rainwater, prevent flue dust and rainwater to camera
Interference, detection chip can carry out the infrared light of directive gas absorbing and reflective operation, and then judges the property of gas,
Improve the ability of the monitoring to toxic gas.
5, signal transmits black box and can quickly be detected with the connection of each monitoring device and alert device and react prominent
Hair-like condition improves the precise controlling to production safety, further increases safety, and sliding body may be implemented detection device and detect
Moving up and down in babinet can measure the case where monitoring multiple height, ensure that production safety carries out.
Part is illustrated to embody by further advantage, target and the feature of the present invention by following, and part will also be by this
The research and practice of invention and be understood by the person skilled in the art.
Description of the drawings
Fig. 1 is the structural front view of the present invention；
Fig. 2 is sliding body schematic diagram；
Fig. 3 is monitoring probe schematic diagram；
Fig. 4 is gas detection cell schematic diagram；
Fig. 5 is the wireless communication schematic diagram of the present invention.
In figure：1, rectangular base support base；2, mounting blocks；3, L-shaped supports stabilizer blade；4, accumulator；5, fastening bolt；6, it detects
Babinet；7, long straight rectangular aperture；8, vertical column；9, body is slided；10, tight lock；11, rotating boss；12, horizontal rotating shaft；
13, thin card；14, monitoring probe；15, arc protective cover；16, shell is protected；17, camera；18, flexible rubber hose is folded；19, gas
Body sensing chamber；20, seal casinghousing；21, air inlet；22, infrared light supply；23, detection chip；24, bottom sleeves；25, it stretches and grows
Bar；26, audio alert loudspeaker；27, dangerous flashing lamp；28, ladder-shaped frame；29, LED display；30, warning lamp in the daytime；31、
Warning at night lamp；32, solar silicon plate；33, anticorrosive film；34, signal transmits black box.
Specific implementation mode
Present invention will be described in further detail below with reference to the accompanying drawings, to enable those skilled in the art with reference to specification text
Word can be implemented according to this.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein do not allot one or more
The presence or addition of a other elements or combinations thereof.
According to shown in Fig. 1-5, the present invention provides a kind of Safe production of chemical industry caution system, technical solution is as follows：Including：
Rectangular base support base 1 is oblong hollow-core construction, and 1 lower surface surrounding of the rectangular base support base is equipped with mounting blocks
2,2 lower surface of the mounting blocks is connected with L-shaped support stabilizer blade 3, and accumulator 4 is equipped with inside the rectangular base support base 1, described
Fastening bolt 5 is installed, 1 upper surface of rectangular base support base is connected with detection babinet 6, institute above 3 lower end of L-shaped support stabilizer blade
It states 6 one side surface of detection babinet and offers long straight rectangular aperture 7, straight 7 side of rectangular aperture of length is equipped with positioned at detection case
Vertical column 8 inside body 6.
Body 9 is slided, the outer surface of vertical column 8 is set to, 9 side of sliding body is connected with mounted on perpendicular
Tight lock 10 on right cylinder 8,9 other side of sliding body are equipped with rotating boss 11, and 11 one end of the rotating boss connects
It is connected to the horizontal rotating shaft 12 for being connected to 7 inside of long straight rectangular aperture, 12 side of the horizontal rotating shaft is connected with thin card 13, described
12 upper side of horizontal rotating shaft is equipped with monitoring probe 14, and 14 upper surface of the monitoring probe is connected with arc protective cover 15, institute
It states 14 outside of monitoring probe and is provided with protection shell 16, camera 17 is installed inside the protection shell 16.
Flexible rubber hose 18 is folded, is set to one end of horizontal rotating shaft 12,17 outside surrounding of the camera is provided with gas
Sensing chamber 19 is provided with seal casinghousing 20 outside the gas detection cell 19, and 19 one end of the gas detection cell is provided with air inlet
Mouth 21,21 side of the air inlet are equipped with infrared light supply 22, and 22 lower section of the infrared light supply is equipped with several groups array detection
Chip 23,8 side of vertical column are equipped with bottom sleeves 24, and 24 inside center of the bottom sleeves is nested with flexible stock
25,25 top of flexible stock is equipped with audio alert loudspeaker 26, and 26 top of the audio alert loudspeaker is connected with danger
Dangerous flashing lamp 27.
In the above scheme, detection chip 23 is the Intelligent gas sensor chip of Taiwan R＆D and production in the prior art,
When danger arrives audio alert loudspeaker 26 and dangerous flashing lamp 27 can synchronize work, the energy of raising alarm and notice
Power, the support whole device that L-shaped support stabilizer blade 3 can be stablized, ensures the normal operation of device.
In one preferred embodiment, 6 upper surface of detection babinet is equipped with ladder-shaped frame 28,28 both sides of the ladder-shaped frame
Surface is equipped with LED display 29, and 29 both sides of the LED display are respectively arranged with warning lamp 30 in the daytime and warning at night lamp
31。
In the above scheme, LED display 29 can show various electronic information and production operation signal, improve production
Intellectual management, in the daytime warning lamp 30 and warning at night lamp 31 can be used for alarming device, improve the attention of crowd, enhancing peace
Full consciousness.
In one preferred embodiment, the top of the ladder-shaped frame 28 is equipped with solar silicon plate 32, in the seal casinghousing 20
Portion is provided with anticorrosive film 33, and 6 interior side of detection babinet is equipped with signal and transmits black box 34.
In the above scheme, anticorrosive film 33 can protected gas detection cell 19, extend gas detection cell 19 longevity
Life, solar silicon plate 32 can improve the use of the energy, reduce environmental pollution.
In one preferred embodiment, the arc protective cover 15 is the structure of 80 radian sector sheet metals.
In the above scheme, arc protective cover 15 can be effectively that monitoring probe 14 blocks dust and rainwater, prevent cigarette
The interference of dirt and rainwater to camera 17.
In one preferred embodiment, the connection of the sliding body 9 and vertical column 8 is clearance fit, the sliding body 9
For round buss structure.
In the above scheme, detection device moving up and down in detection babinet 6 may be implemented in sliding body 9, can survey
Amount monitors the case where multiple height, ensures that production safety carries out.
In one preferred embodiment, the group number of the detection chip 23 is 2 groups, and the detection chip 23 is folded thin for mutually string
Rectangular parallelepiped structure.
In the above scheme, the infrared light of directive gas can be carried out absorption and reflective operation by detection chip 23, into
And judge the property of gas, improve the ability of the monitoring to toxic gas.
In one preferred embodiment, the monitoring probe 14,19 audio alert loudspeaker 26 of gas detection cell, dangerous flashing lamp
27 and LED display 29 black box 34 is transmitted by conducting wire and signal and is connect.
In the above scheme, signal transmits black box 34 and the connection of each monitoring device and alert device can be examined quickly
Emergency situations are surveyed and reacted, the precise controlling to production safety is improved, further increases safety.
Although the embodiments of the present invention have been disclosed as above, but its is not only in the description and the implementation listed
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily
Realize other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously unlimited
In specific details and legend shown and described herein.
Claims (7)
1. a kind of Safe production of chemical industry caution system, which is characterized in that including：
Rectangular base support base（1）, it is oblong hollow-core construction, the rectangular base support base（1）Lower surface surrounding is equipped with
Fill block（2）, the mounting blocks（2）Lower surface is connected with L-shaped support stabilizer blade（3）, the rectangular base support base（1）Inside is equipped with
Accumulator（4）, the L-shaped support stabilizer blade（3）Fastening bolt is installed above lower end（5）, the rectangular base support base（1）Upper table
Face is connected with detection babinet（6）, the detection babinet（6）One side surface offers long straight rectangular aperture（7）, the straight rectangle of length
Opening（7）Side is equipped with positioned at detection babinet（6）Internal vertical column（8）；
Slide body（9）, it is set to vertical column（8）Outer surface, the sliding body（9）Side, which is connected with, to be mounted on
Vertical column（8）On tight lock（10）, the sliding body（9）The other side is equipped with rotating boss（11）, it is described rotation it is convex
Platform（11）One end, which is connected with, is connected to long straight rectangular aperture（7）The horizontal rotating shaft of inside（12）, the horizontal rotating shaft（12）Side
It is connected with thin card（13）, the horizontal rotating shaft（12）Upper side is equipped with monitoring probe（14）, the monitoring probe（14）
Upper surface is connected with arc protective cover（15）, the monitoring probe（14）Outside is provided with protection shell（16）, the protective shell
Body（16）Inside is equipped with camera（17）；
Fold flexible rubber hose（18）, it is set to horizontal rotating shaft（12）One end, the camera（17）Outside surrounding is provided with gas
Body sensing chamber（19）, the gas detection cell（19）Outside is provided with seal casinghousing（20）, the gas detection cell（19）One end
It is provided with air inlet（21）, the air inlet（21）Side is equipped with infrared light supply（22）, the infrared light supply（22）Pacify lower section
Equipped with several groups array detection chip（23）, the vertical column（8）Side is equipped with bottom sleeves（24）, the bottom sleeves
（24）Inside center is nested with flexible stock（25）, the flexible stock（25）Top is equipped with audio alert loudspeaker（26）,
The audio alert loudspeaker（26）Top connects dangerous flashing lamp（27）.
2. a kind of Safe production of chemical industry caution system according to claim 1, it is characterised in that：The detection babinet（6）
Upper surface is equipped with ladder-shaped frame（28）, the ladder-shaped frame（28）Both side surface is equipped with LED display（29）, the LED
Display screen（29）Both sides are respectively arranged with warning lamp in the daytime（30）With warning at night lamp（31）.
3. a kind of Safe production of chemical industry caution system according to claim 1, it is characterised in that：The ladder-shaped frame（28）
Top is equipped with solar silicon plate（32）, the seal casinghousing（20）It is internally provided with anticorrosive film（33）, the detection case
Body（6）Interior side is equipped with signal and transmits black box（34）.
4. a kind of Safe production of chemical industry caution system according to claim 1, it is characterised in that：The arc protective cover
（15）For the structure of 80 radian sector sheet metals.
5. a kind of Safe production of chemical industry caution system according to claim 1, it is characterised in that：The sliding body（9）
With vertical column（8）Connection be clearance fit, the sliding body（9）For round buss structure.
6. a kind of Safe production of chemical industry caution system according to claim 1, it is characterised in that：The detection chip（23）
Group number be 2 groups, the detection chip（23）Mutually to go here and there folded thin rectangular parallelepiped structure.
7. a kind of Safe production of chemical industry caution system according to claim 1, it is characterised in that：The monitoring probe
（14）, gas detection cell（19）Audio alert loudspeaker（26）, dangerous flashing lamp（27）And LED display（29）Pass through conducting wire
Black box is transmitted with signal（34）Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810285068.7A CN108492493A (en) | 2018-04-02 | 2018-04-02 | A kind of Safe production of chemical industry caution system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810285068.7A CN108492493A (en) | 2018-04-02 | 2018-04-02 | A kind of Safe production of chemical industry caution system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108492493A true CN108492493A (en) | 2018-09-04 |
Family
ID=63317483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810285068.7A Pending CN108492493A (en) | 2018-04-02 | 2018-04-02 | A kind of Safe production of chemical industry caution system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108492493A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112180848A (en) * | 2020-08-28 | 2021-01-05 | 江苏中石电子科技有限公司 | Chemical enterprise safety production management cloud platform |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102049638A (en) * | 2010-07-27 | 2011-05-11 | 天津大学 | Circular seam welding robot device |
| CN104007081A (en) * | 2014-05-29 | 2014-08-27 | 江苏物联网研究发展中心 | Gas detection device, gas detection system and gas detection method |
| CN204190839U (en) * | 2014-11-04 | 2015-03-04 | 安徽中杰信息科技有限公司 | The anticorrosion video camera in a kind of chemical plant |
| CN205212966U (en) * | 2015-12-01 | 2016-05-04 | 重庆星焰科技有限公司 | Chemical production security protection monitoring device |
| CN106128041A (en) * | 2016-08-24 | 2016-11-16 | 李传慧 | Child's alarming device near a kind of chemical plant |
| CN206410729U (en) * | 2016-10-25 | 2017-08-15 | 广东石油化工学院 | Sensor-based hazardous chemical storage-transportation tank body safety detection device |
-
2018
- 2018-04-02 CN CN201810285068.7A patent/CN108492493A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102049638A (en) * | 2010-07-27 | 2011-05-11 | 天津大学 | Circular seam welding robot device |
| CN104007081A (en) * | 2014-05-29 | 2014-08-27 | 江苏物联网研究发展中心 | Gas detection device, gas detection system and gas detection method |
| CN204190839U (en) * | 2014-11-04 | 2015-03-04 | 安徽中杰信息科技有限公司 | The anticorrosion video camera in a kind of chemical plant |
| CN205212966U (en) * | 2015-12-01 | 2016-05-04 | 重庆星焰科技有限公司 | Chemical production security protection monitoring device |
| CN106128041A (en) * | 2016-08-24 | 2016-11-16 | 李传慧 | Child's alarming device near a kind of chemical plant |
| CN206410729U (en) * | 2016-10-25 | 2017-08-15 | 广东石油化工学院 | Sensor-based hazardous chemical storage-transportation tank body safety detection device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112180848A (en) * | 2020-08-28 | 2021-01-05 | 江苏中石电子科技有限公司 | Chemical enterprise safety production management cloud platform |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107886673A (en) | Integral type fire detecting and alarm fire-fighting total management system for building | |
| CN108492493A (en) | A kind of Safe production of chemical industry caution system | |
| CN105973304A (en) | Hand-held power cable tunnel inspection and maintenance tool | |
| CN108682111A (en) | A kind of security alarm monitoring system | |
| CN214741474U (en) | Gas alarm device for mine safety | |
| WO2022116621A1 (en) | Warning lamp for environmental monitoring in security engineering | |
| CN215977504U (en) | Novel fire hydrant | |
| WO2014097019A1 (en) | Intelligent evacuation route device | |
| CN109038268A (en) | A kind of fire-proof and damp-proof electric power cabinet | |
| CN209327581U (en) | A kind of Indoor Video positioning device | |
| CN209694150U (en) | A kind of intelligent safety helmet positioned in real time based on GPS&UWB | |
| CN209087112U (en) | A kind of fire retardant production ethylene leakage proof alarm device | |
| CN207261362U (en) | A kind of hydraulic pneumatic pressure cylinder pressure cylinder warning device | |
| CN217718792U (en) | Novel multifunctional alarm | |
| CN208156708U (en) | A kind of tunnel personnel positioning identification card | |
| CN215177895U (en) | Intelligent monitoring and alarming device for tunnel environment | |
| CN206058836U (en) | A kind of electronic anti-theft doorplate | |
| CN211119054U (en) | L ED emergency indicator lamp based on Internet of things | |
| CN202093660U (en) | Fire alarm system based on internet of things | |
| CN206147890U (en) | Gas detection alarm system based on zigBee | |
| CN219476163U (en) | Fire safety alarm device | |
| CN207895649U (en) | A kind of novel and multifunctional household safety-protection processing equipment | |
| CN214622528U (en) | Gas detector for Internet of things | |
| CN216527835U (en) | LED display screen is used in cooperation on intelligence ground | |
| CN215010727U (en) | Indoor positioning alarm device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180904 |