CN206921246U - A kind of guiding smoke alarm and the escape system with its structure - Google Patents

A kind of guiding smoke alarm and the escape system with its structure Download PDF

Info

Publication number
CN206921246U
CN206921246U CN201720591709.2U CN201720591709U CN206921246U CN 206921246 U CN206921246 U CN 206921246U CN 201720591709 U CN201720591709 U CN 201720591709U CN 206921246 U CN206921246 U CN 206921246U
Authority
CN
China
Prior art keywords
alarm
escape
guiding
signal lamp
transmission equipment
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.)
Active
Application number
CN201720591709.2U
Other languages
Chinese (zh)
Inventor
蔡激文
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changsha Tengfei Information Technology Co Ltd
Original Assignee
Changsha Tengfei Information Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Changsha Tengfei Information Technology Co Ltd filed Critical Changsha Tengfei Information Technology Co Ltd
Priority to CN201720591709.2U priority Critical patent/CN206921246U/en
Application granted granted Critical
Publication of CN206921246U publication Critical patent/CN206921246U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Fire Alarms (AREA)
  • Alarm Systems (AREA)

Abstract

A kind of escape system the utility model proposes guiding smoke alarm and with its structure, alarm includes the body of polyhedral structure, body has at least two index planes, the color signal lamp of the different information of at least two kinds instructions on each index plane, and wherein at least one color signal lamp instruction route of escape signal;Alarm also includes being connected with processor and installed in temperature sensor, caution bell, broadcast loudspeaker, the Smoke Sensor of body exterior, it is connected with processor and controls caution bell and broadcast loudspeaker alternation installed in timer, reception and the transmission equipment of body interior, timer;Escape system includes N number of alarm being distributed on escape route and is arranged on the central control unit in control room, and alarm is by receiving, transmission equipment and central control unit connect;The utility model causes in emergency evacuation occasion is needed, and can effectively guide people to follow and subscribe route progress emergency evacuation, therefore have clear advantage.

Description

A kind of guiding smoke alarm and the escape system with its structure
Technical field
The system that the utility model is related to the alarm evacuated in an emergency situation to people and its structure, especially It is related to a kind of guiding smog alarm and the system with its structure.
Background technology
In the occasion that some emergencies occur, if fire, earthquake, traffic accident, terrorist activity are, it is necessary to emergency evacuation System, to ensure people within the most short time, without the space for jeopardously leaving the generation of these emergencies;At present, Widely used alarm and emergent identification lamp in the abort escape system for fire, when fire occurs, alarm lamp Sound the alarm, people escape from fire generating region by means of the guide of the identification light on building or prompting pattern;But It is when site environment is more severe, as fire hazard aerosol fog is larger, because the lamplight brightness of emergent identification lamp is weaker, therefore to cause arrow Head direction and prompting pattern more difficult identification in the environment of dense smoke, people's None- identified to correct escape direction;
People are easy to produce the feared state of mind, confusion of thinking in this case simultaneously;Cause the existing escape system in scene System is more difficult to be played a role, and people are burnt, choked due to can not find escape system, and some even makes aggressive behavior, and this is certain It is in degree the main reason for causing casualties, so in the scene of fire of confusion, in the case where everybody thinks escape, this It is clearly inadequate a bit, it is desirable for can allow flurried people according to the equipment for indicating escape in times of crisis or be System;
Therefore, how when emergency occurs, guided by the way of a kind of simple and clear guide evacuation route The personnel being trapped in danger, give its correct safe escape direction, be the technical problems to be solved in the utility model.
Utility model content
The utility model is intended to one of technical problem at least solving in correlation technique to a certain extent.
Therefore, a purpose of the present utility model is to propose a kind of guiding smoke alarm, the alarm includes The body of polyhedral structure, the body have at least two index planes, and at least two kinds indicate not on each index plane With the color signal lamp of information, and wherein at least one color signal lamp indicates route of escape signal;
The alarm also includes being connected with processor and installed in the temperature sensor, caution bell, broadcast of body exterior Loudspeaker, Smoke Sensor, it is connected with processor and installed in timer, reception and the transmission equipment of body interior, the meter When device control the caution bell and the broadcast loudspeaker alternation.
When the utility model is intended to occur fire or other manpowers irresistible accident, people can be helped quickly to have Sequence is fled the scene, and passes through control centre and the evacuation route of default evacuation route and secondary grade(Different color signals Lamp can represent the danger classes of accident spot), reasonable effective tissue evacuation personnel, when the unexpected and optimal fire escape of incident because It is overstaffed and when blocking, evacuating personnel can be carried out by secondary channel, so as to will not cause bigger casualties or Economic loss, and by setting at least two color signal lamps for representing different evacuation route safe classes on each index plane Means of escape is rationally judged according to field condition to give escape personnel;Simultaneously by the timer control the caution bell and The broadcast loudspeaker replaces ring, and the broadcast loudspeaker one should also note that item when can report escape, while can also Report urgency for therapy when fire or other accidents.
Meanwhile additionally provide a kind of escape system being made up of the guiding smoke alarm, the escape system bag Include N number of alarm being distributed on escape route and be arranged on the central control unit in control room, the alarm It is connected by the reception, transmission equipment with the central control unit.
The central control unit controls all alarms, the safety at described its present position of alarm real-time display Situation, and the level of security at its present position is represented by color signal lamp, for the row successively on escape route The alarm of row, the alarm in escape opening direction is set as rear portion alarm, then for alarm each described The color signal lamp shown on the index plane is by the color signal lamp that is shown on the index plane of the alarm at rear portion Color determine, when the color of the color signal lamp that is shown on the index plane of the alarm at rear portion is green or blue When color or yellow, the anterior alarm is controlled by the central control unit, and just can the alarm with An index plane corresponding to the alarm of rear portion displays that green or blueness or yellow, represents that this route can pass through;When rear portion When the color of the color signal lamp shown on the index plane of the alarm is red, the anterior alarm is by described Central control unit controls, and displays that red, table in an alarm index plane corresponding with rear portion alarm Show the danger of this escape route.
According in the utility model background technology to described in prior art, at present, in the abort escape system for fire In widely used alarm and emergent identification lamp, when fire occurs, alarm lamp sounds the alarm, people by means of peace Identification light on building or the guide for prompting pattern, escape from fire generating region, still, when site environment is more severe, As fire hazard aerosol fog is larger, because the lamplight brightness of emergent identification lamp is weaker, therefore cause the direction of arrow and prompting pattern in dense smoke Environment in more difficult identification, people's None- identified to correct escape direction;And the utility model passes through with multiple index planes Recoil simulator, while set on each index plane at least two color signal lamps to represent the safe class of escape direction and set The signal lamp of at least one color instruction route of escape is put, thus represents safe escape route and the dangerous road of early warning Section, the color tips safe class shown according to color signal lamp, enable people to clear judge road of most preferably escaping Line, and prevention it is overstaffed when block escape way so that personnel have little time to withdraw, therefore have clear advantage.
In addition, a kind of guiding smoke alarm and the escape system with its structure may be used also according to disclosed in the utility model With with technical characteristic additional as follows:
Further, the alarm also includes:
Bottom and/or side have hole;And
Bottom and/or side have the shell of grid, and the body is arranged in the shell.
Either grid is used to transmit smog or air temperature in the hole.
Further, the color signal lamp includes the laser line light source of more than one generation laser beam, the laser beam The light of line style is formed in the plane.
From laser penetrability it is strong the characteristics of make it that, when smog is larger, people are in the planar structure such as ground or metope On can interpolate that safe escape direction.
Further, the color signal lamp includes red eye, amber lamp, blue signal lamp and green Lamp;Red eye represents dangerous, and amber lamp risk factor will not form huge injury in the short time, and blue signal lamp represents There is suspicion of danger, greensignal light represents safety.
Further, the alarm also include emergency lamp and any appliance in reserve battery electric power system or Any combination of the said equipment.
The emergency lamp can provide the visual field, the battery is standby in the case where accident occurs and powers off for people Extra power supply guarantee can be provided with system for the alarm or the illuminating lamp.
Further, the reception is that wireless receiving is set with transmission equipment and/or cable network reception with transmission with transmission equipment It is standby.
The reception and transmission equipment can be single wireless receiving and transmission equipment or cable network reception and transmission equipment, Either both combinations.
Further, the alarm also includes adjuster, and the adjuster includes controlling the laser line light source to shine First regulating member of firing angle degree;Irradiation position can be adjusted according to actual conditions.
Further, the adjuster also includes the second regulating member for controlling the fiber lengths;According to residing position The factor light regulating length such as region and geographical environment is put to show instruction icon completely.
Preferably, alarm described in each of which is controlled by central control unit, be able to will be controlled by network Signal delivers to each described alarm, and central control unit is according to the route of escape situation being collected into safe escape road Line is adjusted in real time, closes blocked predetermined evacuation route, and formulate meet actual conditions at that time it is accurate just Near evacuation route.
Preferably, N number of alarm is to be spacedly distributed;It is spacedly distributed and may be such that the well-balanced distribution of alarm, rationally The monitoring range using each alarm, guarantee can either make full use of each alarm will not install again too much, section Resource is saved.
Additional aspect and advantage of the present utility model will be set forth in part in the description, partly by from following description In become obvious, or by it is of the present utility model practice recognize.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become from the following description of the accompanying drawings of embodiments Substantially and it is readily appreciated that, wherein:
Fig. 1 is the schematic diagram of one embodiment of guiding smoke alarm according to disclosed in the utility model;
Fig. 2 is the schematic diagram using one embodiment of the escape system of guiding smoke alarm structure;
Wherein, 1 is body, and 2 be color signal lamp, and 3 be reception and transmission equipment, and 4 be processor, and 5 be timer, and 6 are Temperature sensor, 7 be Smoke Sensor, and 8 be caution bell, and 9 be broadcast loudspeaker, and 10 be alarm.
Embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng The embodiment for examining accompanying drawing description is exemplary, it is intended to for explaining the utility model, and it is not intended that to the utility model Limitation.
Design of the present utility model is as follows, by setting polyhedral alarm and being provided with multiple index planes, and each At least two exit signs signal lamps are provided with index plane, when being burst accident, people can select to escape according to actual conditions Means of livelihood line.
Below with reference to the accompanying drawings a kind of guiding smoke alarm and use according to the utility model embodiment are described in detail Its escape system built.
As illustrated, according to embodiment of the present utility model, the alarm 10 includes the body 1 of polyhedral structure, institute Stating body 1 has at least two index planes, the color signal lamp of the different information of at least two kinds instructions on each index plane 2, and wherein at least one color signal lamp 2 indicates route of escape signal;
The alarm 10 also includes being connected with processor 4 and the temperature sensor 6 installed in body exterior, caution bell 8, Broadcast loudspeaker 9, Smoke Sensor 7, are connected with processor 4 and the timer 5 inside body 1, reception and transmission are set Standby 3, the timer 5 controls caution bell 8 and the broadcast loudspeaker 9 alternation.
When the utility model is intended to occur fire or other manpowers irresistible accident, people can be helped quickly to have Sequence is fled the scene, and passes through control centre and default evacuation route and the evacuation route of secondary(Different color signal lamps 2 The danger classes of accident spot can be represented), it is rationally effective to organize evacuation personnel, when the unexpected and optimal fire escape of accident is because of people When member excessively blocks, evacuating personnel can be carried out by secondary channel, so as to which bigger casualties or warp will not be caused Ji loss, and by setting at least two color signal lamps 2 for representing different evacuation route safe classes on each index plane Means of escape is rationally judged according to field condition to give escape personnel;The caution bell is controlled by the timer 5 simultaneously 88 and the broadcast loudspeaker 9 replace ring, and urgency for therapy when reporting fire or other accidents.
Additionally provide a kind of escape system being made up of the guiding smoke alarm 10, the escape system bag simultaneously Include N number of alarm 10 being distributed on escape route and be arranged on the central control unit in control room, the alarm Device 10 is connected by the reception, transmission equipment with the central control unit.
The central control unit controls all alarms 10, at described its present position of the real-time display of alarm 10 Security situation, and the level of security at its present position is represented by color signal lamp 2, on escape route according to The alarm 10 of secondary arrangement, the alarm 10 in setting escape opening direction is rear portion alarm 10, then for each institute The color signal lamp 2 shown on the index plane of alarm 10 is stated by showing on the index plane of the alarm 10 at rear portion The color of the color signal lamp 2 shown determines, when the color signal shown on the index plane of the alarm 10 at rear portion When the color of lamp 2 is green or blueness or yellow, the anterior alarm 10 is controlled by the central control unit, and Green or blueness or yellow can be displayed that in 10 corresponding index planes of the alarm 10 and rear portion alarm, represented This route can be by, but safe class reduces successively;When the face shown on the index plane of the alarm 10 at rear portion When the color of chrominance signal lamp 2 is red, the anterior alarm 10 is controlled by the central control unit, and in the report Alert device 10 displays that red with 10 corresponding index planes of rear portion alarm, represents that time escape route is dangerous.
According in the utility model background technology to described in prior art, at present, in the abort escape system for fire In widely used alarm 10 and emergent identification lamp, when fire occurs, alarm lamp sounds the alarm, people by means of The guide of identification light or prompting pattern on building, escapes from fire generating region, still, when site environment is more disliked It is bad, as fire hazard aerosol fog is larger, because the lamplight brightness of emergent identification lamp is weaker, therefore cause the direction of arrow and prompting pattern dense More difficult identification in the environment of cigarette, people's None- identified to correct escape direction;And the utility model passes through with multiple instructions The recoil simulator in face, while set on each index plane at least two color signal lamps 2 to represent the safe class of escape direction And the signal lamp of at least one color instruction route of escape is set, thus represent that safe escape route and early warning are dangerous Section, the color tips safe class shown according to color signal lamp 2, enable people to clear judge most preferably to escape Means of livelihood line, and prevention it is overstaffed when block escape way so that personnel have little time to withdraw, therefore have clear advantage.
In addition, according to disclosed in the utility model a kind of guiding smoke alarm 10 and with its structure escape system also There can be technical characteristic additional as follows:
According to some embodiments of the utility model, the alarm 10 also includes:
Bottom and/or side have hole;And
Bottom and/or side have the shell of grid, and the body 1 is arranged in the shell.
Either grid is used to transmit smog or air temperature in the hole.
According to some embodiments of the utility model, the color signal lamp 2 includes swashing for more than one generation laser beam Light light source, the laser beam form the light of line style in the plane.
From laser penetrability it is strong the characteristics of make it that, when smog is larger, people are in the planar structure such as ground or metope The upper escape direction for judging safety.
According to some embodiments of the utility model, the color signal lamp 2 include red eye, amber lamp, Blue signal lamp and greensignal light;Red eye represents dangerous, and amber lamp risk factor will not form huge in the short time Major injury, blue signal lamp indicate suspicion of danger, and greensignal light represents safety.
According to some embodiments of the utility model, the alarm 10 also includes emergency lamp and reserve battery supplies Any combination of any appliance or the said equipment in electric system.
The emergency lamp can provide the visual field, the battery is standby in the case where accident occurs and powers off for people Extra power supply guarantee can be provided with system for the alarm 10 or the illuminating lamp.
According to some embodiments of the utility model, the reception and transmission equipment 3 are wireless receiving and transmission equipment 3 And/or cable network reception and transmission equipment 3.
The reception can be that single wireless receiving is set with transmission equipment 3 or cable network reception with transmission with transmission equipment 3 Standby 3, or both combinations.
According to some embodiments of the utility model, the alarm 10 also includes adjuster, and the adjuster includes control Make the first regulating member of the laser line light source irradiating angle;Irradiation position can be adjusted according to actual conditions.
According to some embodiments of the utility model, the adjuster also includes the second regulation for controlling the fiber lengths Part;Icon is indicated according to the factor light regulating length such as present position region and geographical environment completely to show.
According to some embodiments of the utility model, alarm 10 is controlled by central control unit described in each of which System, can deliver to each described alarm 10, central control unit is according to the safety being collected into by network by control signal Evacuation route situation is adjusted in real time to route of escape, closes blocked predetermined evacuation route, and formulate Meet the accurate evacuation route nearby of actual conditions at that time.
Preferably, N number of alarm 10 is to be spacedly distributed;It is spacedly distributed and may be such that well-balanced point of the alarm 10 Cloth, reasonably using the monitoring range of each alarm 10, guarantee can either make full use of each alarm 10 and will not Installation is too many, saves resource.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width Degree ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " suitable The orientation or position relationship of the instruction such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " are based on orientation shown in the drawings Or position relationship, be for only for ease of description the utility model and simplify and describe, rather than instruction or imply signified device or Element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limit of the present utility model System.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or Implicitly include one or more this feature.In description of the present utility model, " multiple " are meant that two or more, remove It is non-separately to have clearly specific limit.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu It is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally;Can be Mechanically connect or electrically connect;Can be joined directly together, can also be indirectly connected by intermediary, can be two The connection of element internal or the interaction relationship of two elements.For the ordinary skill in the art, can basis Concrete condition understands concrete meaning of the above-mentioned term in the utility model.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description Point is contained at least one embodiment or example of the present utility model.In this manual, to the schematic table of above-mentioned term State and be necessarily directed to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be with Combined in an appropriate manner in any one or more embodiments or example.In addition, in the case of not conflicting, this area Technical staff the different embodiments or example and the feature of different embodiments or example described in this specification can be entered Row combines and combination.
Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is Exemplary, it is impossible to it is interpreted as to limitation of the present utility model, one of ordinary skill in the art is in the scope of the utility model It is interior above-described embodiment to be changed, changed, replaced and modification.

Claims (10)

1. a kind of guiding alarm, it is characterised in that the alarm includes the body of polyhedral structure, and the body has At least two index planes, each at least two kinds color signal lamps for indicating different information on the index plane, and wherein at least A kind of color signal lamp indicates route of escape signal;
The alarm also includes being connected with processor and amplified installed in the temperature sensor, caution bell, broadcast of body exterior Device, Smoke Sensor, it is connected with processor and installed in timer, reception and the transmission equipment of body interior, the timer Control the caution bell and the broadcast loudspeaker alternation.
2. guiding alarm according to claim 1, it is characterised in that the alarm also includes:
Bottom and/or side have hole;And
Bottom and/or side have the shell of grid, and the body is arranged in the shell.
3. guiding alarm according to claim 1, it is characterised in that the color signal lamp produces including more than one The laser line light source of raw laser beam, the laser beam form the light of line style in the plane.
4. guiding alarm according to claim 1, it is characterised in that the color signal lamp includes danger signal Lamp, amber lamp, blue signal lamp and greensignal light.
5. guiding alarm according to claim 1, it is characterised in that the alarm also include emergency lamp with And any appliance or any combination of the said equipment in reserve battery electric power system.
6. guiding alarm according to claim 1, it is characterised in that described receive with transmission equipment is wireless receiving With transmission equipment and/or cable network reception and transmission equipment.
7. guiding alarm according to claim 3, it is characterised in that the alarm also includes adjuster, described Adjuster includes the first regulating member for controlling the laser line light source irradiating angle.
8. guiding alarm according to claim 7, it is characterised in that the adjuster also includes controlling the light Second regulating member of length.
9. a kind of usage right requires the escape system of any described guiding alarm structures of 1-8, it is characterised in that described Escape system includes N number of alarm being distributed on escape route and is arranged on the central control unit in control room, The alarm is connected by the reception, transmission equipment with the central control unit.
10. escape system according to claim 9, it is characterised in that N number of alarm is to be spacedly distributed.
CN201720591709.2U 2017-05-25 2017-05-25 A kind of guiding smoke alarm and the escape system with its structure Active CN206921246U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720591709.2U CN206921246U (en) 2017-05-25 2017-05-25 A kind of guiding smoke alarm and the escape system with its structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720591709.2U CN206921246U (en) 2017-05-25 2017-05-25 A kind of guiding smoke alarm and the escape system with its structure

Publications (1)

Publication Number Publication Date
CN206921246U true CN206921246U (en) 2018-01-23

Family

ID=61308526

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720591709.2U Active CN206921246U (en) 2017-05-25 2017-05-25 A kind of guiding smoke alarm and the escape system with its structure

Country Status (1)

Country Link
CN (1) CN206921246U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108877115A (en) * 2018-08-15 2018-11-23 深圳市烽焌信息科技有限公司 Evacuate guidance method and robot
CN108961628A (en) * 2018-06-29 2018-12-07 贵州省仁怀市西科电脑科技有限公司 Security alarm and guidance system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108961628A (en) * 2018-06-29 2018-12-07 贵州省仁怀市西科电脑科技有限公司 Security alarm and guidance system
CN108961628B (en) * 2018-06-29 2020-01-17 贵州省仁怀市西科电脑科技有限公司 Security alarm and guide system
CN108877115A (en) * 2018-08-15 2018-11-23 深圳市烽焌信息科技有限公司 Evacuate guidance method and robot

Similar Documents

Publication Publication Date Title
CN206921246U (en) A kind of guiding smoke alarm and the escape system with its structure
KR101841761B1 (en) fire sensing and evacuation guiding system for use in temporary fire fighting equipment at construction site
KR20170079124A (en) mono type firefighting sensor of based IoT
CN108648382A (en) A kind of guiding of escape route and management system, method
CN109816912A (en) Fire evacuation method, apparatus and readable storage medium storing program for executing
KR101783825B1 (en) emergency exit lamp and control system of the same
CN210225815U (en) Anti-congestion fire emergency guidance system
CN110491065A (en) A kind of wisdom fire-fighting alarm system based on LoRa technology
CN103247125A (en) Expressway tunnel fire control linkage system and control method
CN112581714A (en) Fire timely alarm system based on transmission of Internet of things
CN116052350A (en) Fire disaster early warning and rescue system and method based on road-asking guiding navigation mode
CN105894710B (en) Temperature monitoring warning device and fire control warning system
CN110992651A (en) False alarm prevention emergency early warning issuing system
KR20170001480U (en) Portable fire fighting system
CN112242048B (en) Intelligent fire-fighting early warning emergency system
KR102049083B1 (en) Smart emergency light system with guidance function using laser
CN113720851A (en) Dangerous rock body acousto-optic combined intelligent monitoring and early warning method
CN201984602U (en) Intelligent system for complete alarm and escape indication of fire
KR20170079166A (en) fire-prevention system possible earthquake observation
CN208128610U (en) The indicating lamp for emergency of automatic identification escape route density of personnel
CN209525730U (en) A kind of system automatically generating escape route
CN104376662A (en) Indicating system for escape from smoke
KR101783826B1 (en) exit lamp and control system of the same
CN213458362U (en) Emergency danger-avoiding signal system for fire-fighting rescue scene
CN208521421U (en) One kind having channel mask intelligent smog alarm device

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant