CN112863142A - Oxygen alarm for public place personnel gathering space - Google Patents
Oxygen alarm for public place personnel gathering space Download PDFInfo
- Publication number
- CN112863142A CN112863142A CN202110211740.XA CN202110211740A CN112863142A CN 112863142 A CN112863142 A CN 112863142A CN 202110211740 A CN202110211740 A CN 202110211740A CN 112863142 A CN112863142 A CN 112863142A
- Authority
- CN
- China
- Prior art keywords
- oxygen
- module
- alarm
- intelligent
- early warning
- 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
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 116
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 116
- 239000001301 oxygen Substances 0.000 title claims abstract description 116
- 230000010365 information processing Effects 0.000 claims abstract description 18
- 238000012360 testing method Methods 0.000 claims abstract description 16
- 238000005259 measurement Methods 0.000 claims abstract description 10
- 238000004891 communication Methods 0.000 claims abstract description 5
- 238000010276 construction Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 5
- 230000008878 coupling Effects 0.000 abstract description 4
- 238000010168 coupling process Methods 0.000 abstract description 4
- 238000005859 coupling reaction Methods 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 208000024891 symptom Diseases 0.000 description 3
- 206010009866 Cold sweat Diseases 0.000 description 2
- 206010011224 Cough Diseases 0.000 description 2
- 206010019233 Headaches Diseases 0.000 description 2
- 206010021143 Hypoxia Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 231100000869 headache Toxicity 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 206010067484 Adverse reaction Diseases 0.000 description 1
- 206010010071 Coma Diseases 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000006838 adverse reaction Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000036772 blood pressure Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 208000002173 dizziness Diseases 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000007954 hypoxia Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002496 oximetry Methods 0.000 description 1
Images
Classifications
-
- 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
- G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0062—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display
- G01N33/0063—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display using a threshold to release an alarm or displaying means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0073—Control unit therefor
-
- 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
- G08B3/00—Audible signalling systems; Audible personal calling systems
- G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
- G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
- G08B5/36—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources
-
- 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
- G08B7/066—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 guiding along a path, e.g. evacuation path lighting strip
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Medicinal Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Business, Economics & Management (AREA)
- Food Science & Technology (AREA)
- Emergency Management (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Electromagnetism (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The invention relates to an oxygen alarm for a public place personnel gathering space, namely an optical-mechanical-electrical integrated conversion oxygen alarm, which comprises an intelligent oxygen measuring module, a light early warning module and an information processing module, wherein the intelligent oxygen measuring module is a wall hanging device and is distributed at a visible position on the wall surface of each area in a building, and multi-interval warning or alarm is divided according to the oxygen content of 20.9 percent of oxygen; the information processing module is in wireless communication connection with the intelligent oxygen measurement module and the light early warning module, collects an oxygen test value obtained by the intelligent oxygen measurement module in real time, and instructs the light early warning module in a specific area to perform light early warning. Compared with the prior art, the intelligent oxygen measurement system has the advantages that the rapid oxygen alarm of the personnel gathering space in the public place is realized through the coupling of the intelligent oxygen measurement modules, the information processing module and the light early warning module which are arranged in a distributed mode, and the effect of rapidly indicating evacuated personnel can be achieved.
Description
Technical Field
The invention relates to an oxygen early warning device, in particular to an oxygen alarm for a personnel gathering space in a public place.
Background
The places where people gather in cities and the places where people hold large-scale activities are more and more, the places comprise sports events, music festivals, art shows and the like, and public places such as railway stations, amusement parks and the like, the areas are densely populated, fire accidents or air pollution accidents caused by various reasons are frequent, when the accidents happen, the local space in the building is lack of oxygen, and when the indoor public places are seriously lack of oxygen, the people in the places are easy to generate various serious symptoms such as cold sweat and headache. Cough and severe shock can be caused, many vulnerable groups such as children, old people and disabled people are easy to suffocate in a collection space, life danger is caused, adverse reactions such as heartbeat acceleration and blood pressure rise can occur due to oxygen deficiency in a short time, coma can occur after long-time stay, and life can be threatened after a long time. The death accident occurs and the remorseness is realized. At present, emergency rescue cannot be realized for people gathering under the situation.
Therefore, it is urgently needed to develop an oxygen alarm for a personnel gathering space in a public place, so as to realize emergency alarm/early warning of the personnel gathering space and ensure the emergency and orderly evacuation of personnel.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an oxygen alarm for a public place personnel gathering space, which solves the problem of rapid oxygen alarm of the public place personnel gathering space through the coupling of a plurality of intelligent oxygen measuring modules, an information processing module and a light early warning module which are arranged in a distributed mode and can achieve the effect of rapidly indicating evacuated personnel.
The invention relates to an oxygen alarm used for a public place personnel gathering space, in particular to an optical-mechanical-electrical integrated conversion oxygen alarm, which is used for dividing a multi-interval warning or alarming according to 20.9% of oxygen content of oxygen and specifically comprises a plurality of intelligent oxygen measuring modules, a light early warning module and an information processing module, wherein specifically:
the intelligent oxygen measuring module is wall-mounted equipment, is distributed at visible positions on wall surfaces of all areas in the building and can give out sound alarm;
the light early warning module is arranged in any area inside the building or connected with the intelligent oxygen measuring module;
and the information processing module is in wireless communication connection with the intelligent oxygen measurement modules and the light early warning module, collects oxygen test values obtained by the intelligent oxygen measurement modules in real time, and instructs the light early warning module in a specific area to perform light early warning.
Furthermore, the intelligent oxygen measuring module comprises an inhalation assembly, an oxygen sensor, an analog-to-digital converter and a first microprocessor;
the suction assembly sucks air in a specific area inside a building;
the testing end of the oxygen sensor is arranged in the suction assembly;
the oxygen sensor is electrically connected with the analog-to-digital converter and the first microprocessor in sequence.
Furthermore, the intelligent oxygen measuring module further comprises an audible alarm, and the audible alarm is electrically connected with the first microprocessor.
Furthermore, the intelligent oxygen measuring module further comprises a first wireless signal transceiver, and the first wireless signal transceiver is electrically connected with the first microprocessor.
Furthermore, the top of the intelligent oxygen measuring module is provided with a fixing assembly, and the intelligent oxygen measuring module is fixed on the wall of the specific area through the fixing assembly.
Further, fixed subassembly includes the connecting rod of being connected with intelligence oxygen measuring module, be connected with fixed plate and anchor clamps on the connecting rod, the fixed plate is equipped with the screw.
Further, the suction assembly comprises an airflow channel and an air inlet pump, the testing end of the oxygen sensor is arranged in the airflow channel, and the air inlet pump sucks air outside the airflow channel into the airflow channel so as to enable the oxygen sensor to obtain a testing value in real time.
Furthermore, the air inlet of the air flow channel is of a wide-mouth structure, and the air outlet of the air flow channel is of a narrow-mouth structure.
Further, the information processing module comprises a second microprocessor, a second wireless signal transceiver and a memory.
Further, the light early warning module is a strip diode array or a strip display screen.
Compared with the prior art, the invention has the following technical advantages:
1. according to the technical scheme, the rapid oxygen alarm of the personnel gathering space in the public place is realized through the coupling of the intelligent oxygen measuring modules, the information processing module and the light early warning module which are arranged in a distributed mode, and the effect of rapidly indicating evacuated personnel can be achieved.
2. The cooperation of anchor clamps and the fixed plate among the fixed subassembly can be fixed in the inside specific area of building with intelligence oxygen measuring module, and it is convenient to implement to realize the real-time content test of indoor oxygen through oxygen sensor, microprocessor compares the content value with the threshold value, realizes the function of the warning of oxygen with this, realizes in time reminding indoor personnel.
3. According to the technical scheme, the information processing module stores oxygen values of all areas at the same time, the oxygen values are analyzed and compared through the second microprocessor, when the oxygen values are lower than a preset threshold value, the second microprocessor analyzes an optimal personnel evacuation path according to a preset indoor map, and instructs the light early warning module to perform corresponding light display, indicate early warning/warning information and display evacuation prompts, emergency warning/early warning of personnel gathering space is achieved, and emergency and ordered evacuation of personnel is guaranteed.
Drawings
Fig. 1 is a schematic structural diagram of an in-vehicle oxygen testing and early warning device in the technical scheme;
fig. 2 is a schematic structural diagram of the connecting rod in the technical scheme.
In the figure: 1. the intelligent oxygen measuring module comprises an intelligent oxygen measuring module, 2, an information processing module, 3, a light early warning module, 11, a side oxygen sensor, 12, an air flow channel, 13, an air inlet pump, 14, an air inlet, 15, an air outlet, 16, an audible alarm, 17, an analog-to-digital converter, 18, a first microprocessor, 19, a first wireless signal transceiver, 4, a fixing component, 41, a fixing plate, 42, a clamp, 43 and a connecting rod.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Example 1
The oxygen alarm for the public place personnel gathering space in the embodiment comprises a plurality of intelligent oxygen measuring modules 1, a light early warning module 3 and an information processing module 2, and is shown in figure 1. The quick oxygen alarm of the public place personnel gathering space is realized through the coupling of the intelligent oxygen measuring module 1, the information processing module 2 and the light early warning module 3 which are arranged in a distributed mode, and the effect of quickly indicating evacuated personnel can be achieved.
The intelligent oxygen measuring modules 1 are distributed on visible positions on wall surfaces of all areas in the building, and can give out sound alarm.
The smart oximetry module 1 includes an inhalation assembly, an oxygen sensor 11, an analog-to-digital converter 17 and a first microprocessor 18, see fig. 2. The intake assembly sucks in air in a specific area inside the building, the testing end of the oxygen sensor 11 is placed in the intake assembly, and the oxygen sensor 11 is electrically connected with the analog-to-digital converter 17 and the first microprocessor 18 in turn. The suction assembly comprises an airflow channel 12 and an air inlet pump 13, wherein the testing end of the oxygen sensor 11 is arranged in the airflow channel 12, and the air inlet pump 13 sucks air outside the airflow channel 12 into the airflow channel 12 so as to enable the oxygen sensor 11 to obtain a testing value in real time. The air inlet of the air flow channel 12 is of a wide-mouth structure, and the air outlet 15 of the air flow channel 12 is of a narrow-mouth structure.
The intelligent oxygen measuring module 1 further comprises an audible alarm 16, and the audible alarm 16 is electrically connected with the first microprocessor 18. The cooperation of anchor clamps 42 and fixed plate 41 in the fixed subassembly 4 can be fixed in the intelligent oxygen measuring module 1 in the inside specific area of building, and it is convenient to implement to realize the real-time content test of indoor oxygen through oxygen sensor, microprocessor compares the content value with the threshold value, realizes the function of the warning of oxygen with this, realizes in time reminding indoor personnel.
The intelligent oxygen measuring module 1 further comprises a first wireless signal transceiver 19, the first wireless signal transceiver 19 is electrically connected with the first microprocessor 18, and the first wireless signal transceiver 19 is in wireless communication connection with the second wireless signal transceiver.
The top of the intelligent oxygen measuring module 1 is provided with a fixing component 4, and the intelligent oxygen measuring module 1 is fixed on the wall of a specific area through the fixing component 4. The fixing assembly 4 comprises a connecting rod 43 connected with the intelligent oxygen measuring module 1, a fixing plate 41 and a clamp 42 are connected onto the connecting rod 43, the fixing plate 41 is provided with a screw hole, and the most suitable installation mode can be carried out according to the structure of a building wall.
The light early warning module 3 is arranged in any area inside a building or is connected with the intelligent oxygen measuring module 1, and the light early warning module 3 is a strip diode array or a strip display screen.
The information processing module 2 is in wireless communication connection with the intelligent oxygen measurement module 1 and the light early warning module 3, collects an oxygen test value obtained by the intelligent oxygen measurement module 1 in real time, and instructs the light early warning module 3 in a specific area to perform light early warning. The information processing module 2 includes a second microprocessor, a second wireless signal transceiver, and a memory. The information processing module 2 stores the oxygen values of all the areas at the same time, the oxygen values are analyzed and compared through the second microprocessor, when the oxygen values are lower than a preset threshold value, the second microprocessor analyzes an optimal personnel evacuation path according to a preset indoor map, and instructs the light early warning module 3 to perform corresponding light display, indicate early warning/warning information and display evacuation prompts, so that emergency warning/early warning of personnel gathering spaces is realized, and emergency and ordered evacuation of personnel is guaranteed.
When the intelligent oxygen measuring module is used specifically, the intelligent oxygen measuring module 1 provides an alarm for the oxygen content of 20.9% of normal air to public place personnel, if the oxygen content is less than 20.9%, the light early warning module 3 can give a yellow alarm and a red alarm to prompt the public place to improve the air quality of the environment where the intelligent oxygen measuring module is located.
The oxygen alarm interval of the oxygen alarm is 20.9 percent, green, normal and high-quality air value is displayed, and the oxygen alarm is suitable for the health state of crowd gathering and oxygen inhalation; 2) less than or equal to 20.9% -19.9% is poor air, and yellow warning signals for people gathering danger, the air environment is in sub-health condition, and people are uncomfortable to breathe. 3) Orange color at 19.9% -18.9% indicates that the environment is in a condition of severe hypoxia for the crowds with adverse symptoms such as dizziness. 4) And the color red between 18.9% and 16.9% below the value indicates that the environment is very serious and anoxic, and various serious symptoms of cold sweat and headache are easy to occur to people in the place. Cough and severe shock occur, and at the moment, the light early warning module 3 displays the optimal evacuation path according to the planning result of the information processing module 2.
The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (10)
1. An oxygen alarm for a public space personnel gathering space, comprising:
the intelligent oxygen measuring modules (1) are distributed on visible positions on wall surfaces of all areas in the building and can give out sound alarm;
the light early warning module (3) is arranged in any area inside the building or is connected with the intelligent oxygen measuring module (1);
the information processing module (2) is in wireless communication connection with the intelligent oxygen measurement module (1) and the light early warning module (3), collects an oxygen test value obtained by the intelligent oxygen measurement module (1) in real time, and instructs the light early warning module (3) in a specific area to perform light early warning.
2. An oxygen alarm for a public space personnel gathering space according to claim 1, wherein the intelligent oxygen measuring module (1) comprises an inhalation assembly, an oxygen sensor (11), an analog-to-digital converter (17) and a first microprocessor (18);
the suction assembly sucks air in a specific area inside a building;
the testing end of the oxygen sensor (11) is arranged in the suction assembly;
the oxygen sensor (11) is electrically connected with the analog-to-digital converter (17) and the first microprocessor (18) in sequence.
3. An oxygen alarm for a public space personnel gathering space according to claim 2, characterized in that the intelligent oxygen measuring module (1) further comprises an audible alarm (16), the audible alarm (16) being electrically connected with the first microprocessor (18).
4. An oxygen alarm for a public space personnel gathering space according to claim 2, characterized in that the intelligent oxygen measuring module (1) further comprises a first wireless signal transceiver (19), the first wireless signal transceiver (19) being electrically connected with the first microprocessor (18).
5. The oxygen alarm for the public place personnel gathering space as claimed in claim 2, wherein a fixing component (4) is arranged at the top of the intelligent oxygen measuring module (1), and the intelligent oxygen measuring module (1) is fixed on the wall of a specific area through the fixing component (4).
6. The oxygen alarm for the public place personnel gathering space is characterized in that the fixing assembly (4) comprises a connecting rod (43) connected with the intelligent oxygen measuring module (1), a fixing plate (41) and a clamp (42) are connected onto the connecting rod (43), and the fixing plate (41) is provided with a screw hole.
7. An oxygen alarm for a space where persons gather in a public place according to claim 2, characterised in that the suction assembly comprises an air flow channel (12) and an air suction pump (13), the test end of the oxygen sensor (11) is placed in the air flow channel (12), the air suction pump (13) sucks air outside the air flow channel (12) into the air flow channel (12) to make the air sensor (11) obtain the test value in real time.
8. An oxygen alarm for a space where persons gather in a public place according to claim 7, characterised in that the air inlet of the air flow channel (12) is of wide mouth construction and the air outlet (15) of the air flow channel (12) is of narrow mouth construction.
9. An oxygen alarm for a space occupied by persons in a public place according to claim 1, characterised in that said information processing module (2) comprises a second microprocessor, a second wireless signal transceiver and a memory.
10. The oxygen alarm for the space where people gather in the public places is characterized in that the light early warning module (3) is a diode array in a strip shape or a display screen in a strip shape.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110211740.XA CN112863142A (en) | 2021-02-25 | 2021-02-25 | Oxygen alarm for public place personnel gathering space |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110211740.XA CN112863142A (en) | 2021-02-25 | 2021-02-25 | Oxygen alarm for public place personnel gathering space |
Publications (1)
Publication Number | Publication Date |
---|---|
CN112863142A true CN112863142A (en) | 2021-05-28 |
Family
ID=75989921
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202110211740.XA Pending CN112863142A (en) | 2021-02-25 | 2021-02-25 | Oxygen alarm for public place personnel gathering space |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN112863142A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114047297A (en) * | 2021-11-17 | 2022-02-15 | 惠州凯美特气体有限公司 | Workshop oxygen-containing monitoring method and device |
-
2021
- 2021-02-25 CN CN202110211740.XA patent/CN112863142A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114047297A (en) * | 2021-11-17 | 2022-02-15 | 惠州凯美特气体有限公司 | Workshop oxygen-containing monitoring method and device |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN107038826A (en) | Possesses the building locating system of emergency evacuation function | |
CN206946650U (en) | A kind of intelligent and safe indoor locating system | |
CN106534779A (en) | Intelligent monitoring system for early warning of security of scenic spot | |
CN107490537A (en) | Environmental monitoring system and monitoring method | |
CN112863142A (en) | Oxygen alarm for public place personnel gathering space | |
CN107705494A (en) | A kind of fire alarm fire-fighting system | |
CN215298441U (en) | Oxygen alarm for public place personnel gathering space | |
CN210083199U (en) | Subway platform passenger flow statistics early warning device | |
CN107798805A (en) | A kind of safety monitoring system based on information technology | |
CN111063358A (en) | Early fire early warning and escape indicating system with life recognition function | |
CN202288266U (en) | Central monitoring and positioning system based on wireless network technology | |
CN113611072A (en) | Fire control passageway monitoring security protection early warning system | |
CN105741483A (en) | Safety alert device for people's policeman in prison management department | |
CN105549656B (en) | A kind of safety-protection system of intelligent building | |
CN110570634A (en) | Fire emergency management alarm device for community property | |
CN111882791A (en) | Laser fence for transformer substation | |
CN115171321B (en) | BIM-based intelligent fire control management system and method | |
CN110675522A (en) | Multipurpose electronic security inspection system based on unmanned aerial vehicle technology | |
CN208172857U (en) | A kind of Meteorological Risk Analysis early warning system of urban waterlogging disaster | |
CN106382955B (en) | A kind of monitoring and protecting system of power supply-distribution system operation under low-oxygen environment | |
CN113920623A (en) | Mobile personnel health identification access control device for epidemic prevention and control system thereof | |
CN214151927U (en) | Fire control passageway detection device | |
CN112783024A (en) | Intelligent monitoring system for public buildings | |
KR101909589B1 (en) | The apparatus and method of the electric display for inforing and display of the concentration of fine dust | |
CN107065696B (en) | Bedroom monitoring method and 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 |