CN113438560B - Application method of mesh voice and public and private network interphone voice fusion communication based on intelligent gateway - Google Patents
Application method of mesh voice and public and private network interphone voice fusion communication based on intelligent gateway Download PDFInfo
- Publication number
- CN113438560B CN113438560B CN202110654727.1A CN202110654727A CN113438560B CN 113438560 B CN113438560 B CN 113438560B CN 202110654727 A CN202110654727 A CN 202110654727A CN 113438560 B CN113438560 B CN 113438560B
- Authority
- CN
- China
- Prior art keywords
- voice
- public
- private network
- application method
- mesh
- 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
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
- H04Q5/24—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange for two-party-line systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention provides an application method of mesh voice and public and private network interphone voice fusion communication based on an intelligent gateway, which comprises the following steps: the interconnection of 2 talkback groups of any system is realized by adopting a physical layer transparent transmission mode, the PTT buttons of other ports of the same group are controlled by intelligently detecting voice information corresponding to a half-duplex talkback system, when 2 groups of different networks are interconnected talk at the same time, the priority of the ports can be set, each device provides 4 wireless voice interfaces, each voice interface is connected with a vehicle-mounted station or a mobile station, namely a host radio station, the voice interconnection system can combine the radio stations of different systems and different frequencies of any port into a group, and the application method of the fusion communication of the mesh voice based on the intelligent gateway and the voice of the public and private network interphone is reasonable in design and can comprehensively support the realization of interconnection and intercommunication among various terminals.
Description
Technical Field
The invention relates to the technical field of communication, in particular to an application method of fusion communication of mesh voice and public and private network interphone voice based on an intelligent gateway.
Background
When an emergency event occurs, such as an earthquake, a flood, forest fire prevention and other emergency states, the situations that different rescue teams need to conduct and communicate in a unified mode exist, unified access and unified scheduling of various terminals are rapidly achieved, timely and efficient conducting scheduling is provided for field commanders, two-way real-time voice communication is established with all the terminals on the field, and the rescue search task can be completed as soon as possible when each rescue team makes the best responsibility;
the domestic intercom system has the problems of multiple systems and multiple frequency bands, so that the intercom system cannot be interconnected and intercommunicated, the interconnection and intercommunion of communication terminals of the systems are regarded as indispensable communication guarantee requirements in all industries such as current public safety management, emergency disaster relief, combined law enforcement, large-scale activity guarantee, forest fire prevention, airport management, railway management and the like, the communication terminals of the systems cannot be simply and easily intercommunicated with high quality at present, and in an emergency situation, an interface of a gateway is easy to enter dust and loosen, so that the normal use is affected, and even the progress of an event is affected.
Therefore, the invention provides an application method of mesh voice and public and private network interphone voice fusion communication based on an intelligent gateway.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an application method of mesh voice and public and private network interphone voice fusion communication based on an intelligent gateway, which aims to solve the problems in the background art. Therefore, the problem that when law enforcement and emergency communication are combined, interphones of all units cannot be communicated with one another, the number of the effective interphones is insufficient, and the command efficiency is low is effectively solved.
In order to achieve the purpose, the invention is realized by the following technical scheme: an application method of mesh voice and public and private network interphone voice fusion communication based on an intelligent gateway specifically comprises the following steps: the interconnection of 2 talkback groups of any system is realized by adopting a physical layer transparent transmission mode, corresponding to a half-duplex talkback system, PTT buttons of other ports of the same group are controlled by intelligently detecting voice information, when 2 groups of different networks are interconnected to talk simultaneously, port priority can be set, each device provides 4 wireless voice interfaces, each voice interface is connected with a vehicle-mounted station or a mobile station, namely a host radio station, the voice interconnection system can combine radio stations of different systems and different frequencies of any port into a group, the intercommunication of the radio stations of different systems or frequencies of the group of devices connected with each port is realized, the management and configuration of the device are operated through a WEB interface, the connection or disconnection configuration among the ports is realized, the device encapsulates all language packets into standard SIP protocol packets, the exchange can be carried out through an SIP switch, the intercommunication of private networks between cities or nationwide and the intercommunication between the private networks and the public networks are realized, the equipment comprises a gateway body, wherein both the front side and the rear side of the gateway body are fixedly provided with a protective frame, the front side of the gateway body is provided with a voice interface, the top and the bottom of the protective frame at the front side of the gateway body are fixedly provided with air storage tanks at positions corresponding to the voice interface, a movable plugging seat is movably arranged in the voice interface, 2 telescopic air supply cavities are arranged at positions corresponding to the voice interface in the gateway body, air supply pistons are movably arranged in the telescopic air supply cavities, one side of each air supply piston is fixedly connected with a coupling rod, a through hole is arranged between each voice interface and each telescopic air supply cavity, one end of each coupling rod passes through the through hole and is fixedly connected with the movable plugging seat, and connecting channels are arranged on the inner side wall at one end of each telescopic air supply cavity and in the protective frame, the connecting pipe is fixedly connected to one side of the top of the gas storage tank and communicated with the connecting channel, a clamping piston is movably mounted in the gas storage tank, through holes are formed in the inner side wall of the bottom of the gas storage tank and the protective frame, one end of a clamping rod penetrates through the through holes and is fixedly connected with the clamping piston, a rubber jacket is fixedly mounted at the other end of the clamping rod, a through hole is formed in the top of the gas storage tank at the top of the protective frame, and one end of a pull rod penetrates through the through holes and is fixedly connected with the clamping piston.
In one embodiment: and an indicator light is arranged on one side of the voice interface.
In one embodiment: and the other end of the pull rod is fixedly provided with a round handle.
In one embodiment: the bottom fixed mounting of the protection frame of gateway body rear side has a plurality of supporting leg.
In one embodiment: the rubber jacket is provided with a clamping groove.
In one embodiment: the inner diameter of the telescopic air supply cavity is the same as the diameter of the air supply piston.
In one embodiment: the diameter of the clamping piston is the same as the inner diameter of the air storage tank.
In one embodiment: the quantity of voice interface is 4, the WAN mouth is installed to the front side of gateway body.
In one embodiment: one side of the rubber jacket is tightly attached to the gateway body.
By adopting the technical scheme, the method can comprehensively support the realization of interconnection and intercommunication among various terminals, and can realize the voice interconnection and intercommunication of a configurable grouping mode for 4 paths of interphone talk groups which can not be intercommunicated at most. Therefore, the problem that when law enforcement and emergency communication are combined, interphones of all units cannot be communicated with one another, the number of the effective interphones is insufficient, and the command efficiency is low is effectively solved.
On the other hand, the movable plugging seat can plug an unused voice interface, can effectively prevent the voice interface from entering dust to cause poor contact in an emergency and prevent adverse effects on the progress of the event, when the connector is inserted into the voice interface, the movable plugging seat is pressed into the voice interface and pushes the air supply piston to the telescopic air supply cavity through the linkage rod, the air supply piston extrudes air in the telescopic air supply cavity to enter the top of the air storage tank through the connecting channel and the connecting pipe and pushes the clamping rod and the rubber jacket to move to the voice interface through the clamping piston, the two rubber jackets clamp the connector tightly and completely seal the voice interface, so that the connector can be effectively prevented from being separated and the voice interface from entering dust, the safety is high, when the plug needs to be pulled out, the pull rod is directly pulled, the air reversely moves, and the movable plugging seat is ejected through the air supply piston and the linkage rod, and then the joint is ejected out, which is convenient and fast.
Drawings
Fig. 1 is a schematic diagram of an apparatus structure of an application method of voice fusion communication between mesh voice and a public and private network interphone based on an intelligent gateway according to the present invention;
FIG. 2 is a schematic cross-sectional view of an apparatus for implementing a method for integrating voice communication between a mesh voice and a public/private network interphone based on an intelligent gateway according to the present invention;
FIG. 3 is a schematic diagram of a rubber jacket structure of an application method of the invention based on mesh voice of an intelligent gateway and voice fusion communication of a public and private network interphone;
in the figure: 1. a gateway body; 2. a protective frame; 3. a voice interface; 4. an indicator light; 5. a gas storage tank; 6. a movable plugging seat; 7. a telescopic air supply cavity; 8. an air supply piston; 9. a linkage rod; 10. a connecting channel; 11. a connecting pipe; 12. clamping the piston; 13. a clamping bar; 14. a rubber jacket; 15. a pull rod; 16. a round handle; 17. supporting legs; 18. a clamping groove.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Referring to fig. 1 to 3, the present invention provides a technical solution: an application method of mesh voice and public and private network interphone voice fusion communication based on an intelligent gateway specifically comprises the following steps: the interconnection of 2 talkback groups of any system is realized by adopting a physical layer transparent transmission mode, corresponding to a half-duplex talkback system, PTT buttons of other ports of the same group are controlled by intelligently detecting voice information, when 2 groups of different networks are interconnected to talk simultaneously, port priority can be set, each device provides 4 wireless voice interfaces, each voice interface is connected with a vehicle-mounted station or a mobile station, namely a host radio station, the voice interconnection system can combine radio stations of different systems and different frequencies of any port into a group, the intercommunication of the radio stations of different systems or frequencies of the group of devices connected with each port is realized, the management and configuration of the device are operated through a WEB interface, the connection or disconnection configuration among the ports is realized, the device encapsulates all language packets into standard SIP protocol packets, the exchange can be carried out through an SIP switch, the intercommunication of private networks between cities or nationwide and the intercommunication between the private networks and the public networks are realized, the equipment comprises a gateway body 1, wherein protective frames 2 are fixedly arranged on the front side and the rear side of the gateway body 1, a voice interface 3 is arranged on the front side of the gateway body 1, air storage tanks 5 are fixedly arranged at positions, corresponding to the voice interface 3, of the top and the bottom of the protective frame 2 on the front side of the gateway body 1, movable plugging seats 6 are movably arranged in the voice interface 3, 2 telescopic air supply cavities 7 are arranged at positions, corresponding to the voice interface 3, in the gateway body 1, air supply pistons 8 are movably arranged in the telescopic air supply cavities 7, a linkage rod 9 is fixedly connected to one side of each air supply piston 8, a through hole is formed between each voice interface 3 and each telescopic air supply cavity 7, and one end of each linkage rod 9 penetrates through the through hole and is fixedly connected with each movable plugging seat 6, connecting channels 10 are formed in the inner side wall of one end of the telescopic air supply cavity 7 and the protective frame 2, a connecting pipe 11 is fixedly connected to one side of the top of the air storage tank 5, the connecting pipe 11 is communicated with the connecting channel 10, a clamping piston 12 is movably mounted in the air storage tank 5, through holes are formed in the inner side wall of the bottom of the air storage tank 5 and the protective frame 2, one end of a clamping rod 13 penetrates through the through holes and is fixedly connected with the clamping piston 12, a rubber jacket 14 is fixedly mounted at the other end of the clamping rod 13, a through hole is formed in the top of the air storage tank 5 at the top of the protective frame 2, and one end of a pull rod 15 penetrates through the through holes and is fixedly connected with the clamping piston 12.
In this embodiment, an indicator lamp 4 is installed on one side of the voice interface 3.
Further, a round handle 16 is fixedly mounted at the other end of the pull rod 15.
Further, a plurality of supporting legs 17 are fixedly installed at the bottom of the protection frame 2 on the rear side of the gateway body 1.
Further, a clamping groove 18 is formed on the rubber jacket 14.
Further, the inner diameter of the telescopic air supply chamber 7 is the same as the diameter of the air supply piston 8.
Further, the diameter of the clamping piston 12 is the same as the inner diameter of the air tank 5.
Further, the number of the voice interfaces 3 is 4, and a WAN port is installed on the front side of the gateway body 1.
Further, one side of the rubber jacket 14 is tightly attached to the gateway body 1.
By adopting the technical scheme, the method can comprehensively support the realization of interconnection and intercommunication among various terminals, and can realize the voice interconnection and intercommunication of a configurable grouping mode for 4 paths of interphone talk groups which can not be intercommunicated at most. Therefore, the problem that the command efficiency is low due to the fact that interphones of all units cannot be communicated with each other and the number of the effective interphones is insufficient when law enforcement and emergency communication are combined is effectively solved, the movable plugging seat 6 can plug the unused voice interface 3, poor contact caused by the fact that the voice interface 3 enters dust in the event of emergency can be effectively prevented, and adverse effects on the progress of the event are prevented, when the connector is inserted into the voice interface 3, the movable plugging seat 6 is pressed into the voice interface 3, the air supply piston 8 is pushed into the telescopic air supply cavity 7 through the linkage rod 9, the air supply piston 8 extrudes the air in the telescopic air supply cavity 7 into the top of the air storage tank 5 through the connecting channel 10 and the connecting pipe 11, the clamping rod 13 and the rubber jacket 14 are pushed to move towards the voice interface 3 through the clamping piston 12, the two rubber jackets 14 clamp the connector tightly and completely seal the voice interface 3, thereby can prevent effectively that the joint from breaking away from and voice interface 3 gets into the dust, the security is high, when the plug is extracted to needs, directly stimulates pull rod 15, gaseous reverse motion to it is ejecting with activity shutoff seat 6 through air feed piston 8 and trace 9, and then will connect ejecting, convenient and fast.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (9)
1. An application method of mesh voice and public and private network interphone voice fusion communication based on an intelligent gateway is characterized by comprising the following steps: the interconnection of 2 talkback groups of any system is realized by adopting a physical layer transparent transmission mode, corresponding to a half-duplex talkback system, PTT buttons of other ports of the same group are controlled by intelligently detecting voice information, when 2 groups of different networks are interconnected to talk simultaneously, port priority can be set, each device provides 4 wireless voice interfaces, each voice interface is connected with a vehicle-mounted station or a mobile station, namely a host radio station, the voice interconnection system can combine radio stations of different systems and different frequencies of any port into a group, the intercommunication of the radio stations of different systems or frequencies of the group of devices connected with each port is realized, the management and configuration of the device are operated through a WEB interface, the connection or disconnection configuration among the ports is realized, the device encapsulates all language packets into standard SIP protocol packets, the exchange can be carried out through an SIP switch, the intercommunication of private networks between cities or nationwide and the intercommunication between the private networks and the public networks are realized, the equipment comprises a gateway body (1), wherein protective frames (2) are fixedly arranged on the front side and the rear side of the gateway body (1), a voice interface (3) is arranged on the front side of the gateway body (1), gas storage tanks (5) are fixedly arranged at positions, corresponding to the voice interface (3), of the top and the bottom of the protective frame (2) on the front side of the gateway body (1), movable plugging seats (6) are movably arranged in the voice interface (3), 2 telescopic gas supply cavities (7) are arranged at positions, corresponding to the voice interface (3), in the gateway body (1), gas supply pistons (8) are movably arranged in the telescopic gas supply cavities (7), a linkage rod (9) is fixedly connected to one side of each gas supply piston (8), and through holes are formed between each voice interface (3) and each telescopic gas supply cavity (7), one end of the linkage rod (9) passes through the through hole and is fixedly connected with the movable plugging seat (6), a connecting channel (10) is arranged on the inner side wall of one end of the telescopic air supply cavity (7) and in the protective frame (2), one side of the top of the gas storage tank (5) is fixedly connected with a connecting pipe (11), the connecting pipe (11) is communicated with a connecting channel (10), a clamping piston (12) is movably arranged in the gas storage tank (5), through holes are arranged on the inner side wall of the bottom of the gas storage tank (5) and the protective frame (2), one end of a clamping rod (13) penetrates through the through holes and is fixedly connected with the clamping piston (12), the other end of the clamping rod (13) is fixedly provided with a rubber jacket (14), the top of the gas storage tank (5) at the top of the protective frame (2) is provided with a through hole, and one end of the pull rod (15) penetrates through the through hole and is fixedly connected with the clamping piston (12).
2. The application method of the fusion communication of the mesh voice and the voice of the interphone of the public and private network based on the intelligent gateway as claimed in claim 1 is characterized in that: and an indicator lamp (4) is installed on one side of the voice interface (3).
3. The application method of the fusion communication of the mesh voice and the voice of the interphone of the public and private network based on the intelligent gateway as claimed in claim 1 is characterized in that: the other end of the pull rod (15) is fixedly provided with a round handle (16).
4. The application method of the fusion communication of the mesh voice and the voice of the interphone of the public and private network based on the intelligent gateway as claimed in claim 1 is characterized in that: the bottom of the protective frame (2) on the rear side of the gateway body (1) is fixedly provided with supporting legs (17).
5. The application method of the fusion communication of the mesh voice and the voice of the interphone of the public and private network based on the intelligent gateway as claimed in claim 1 is characterized in that: the rubber jacket (14) is provided with a clamping groove (18).
6. The application method of the fusion communication of the mesh voice and the voice of the interphone of the public and private network based on the intelligent gateway as claimed in claim 1 is characterized in that: the inner diameter of the telescopic air supply cavity (7) is the same as the diameter of the air supply piston (8).
7. The application method of the fusion communication of the mesh voice and the voice of the interphone of the public and private network based on the intelligent gateway as claimed in claim 1 is characterized in that: the diameter of the clamping piston (12) is the same as the inner diameter of the air storage tank (5).
8. The application method of the fusion communication of the mesh voice and the voice of the interphone of the public and private network based on the intelligent gateway as claimed in claim 1 is characterized in that: the WAN port is installed on the front side of the gateway body (1).
9. The application method of the fusion communication of the mesh voice and the voice of the interphone of the public and private network based on the intelligent gateway as claimed in claim 1 is characterized in that: one side of the rubber jacket (14) is tightly attached to the gateway body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110654727.1A CN113438560B (en) | 2021-06-11 | 2021-06-11 | Application method of mesh voice and public and private network interphone voice fusion communication based on intelligent gateway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110654727.1A CN113438560B (en) | 2021-06-11 | 2021-06-11 | Application method of mesh voice and public and private network interphone voice fusion communication based on intelligent gateway |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113438560A CN113438560A (en) | 2021-09-24 |
| CN113438560B true CN113438560B (en) | 2022-08-16 |
Family
ID=77755806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110654727.1A Active CN113438560B (en) | 2021-06-11 | 2021-06-11 | Application method of mesh voice and public and private network interphone voice fusion communication based on intelligent gateway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113438560B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20004406U1 (en) * | 1999-04-16 | 2000-06-08 | Tuenkers Maschinenbau Gmbh | Toggle lever clamping device, in particular for use in body construction in the motor vehicle industry |
| CN105983926A (en) * | 2015-02-13 | 2016-10-05 | 大连光洋科技集团有限公司 | Unpowered adjustable type connecting rod clamping device |
| CN107276919A (en) * | 2017-08-04 | 2017-10-20 | 合肥不止信息科技有限公司 | A kind of interchanger mounting shell |
| CN109936007A (en) * | 2017-12-16 | 2019-06-25 | 胡学朋 | A kind of protective device of Network plug |
| CN108443657A (en) * | 2018-03-23 | 2018-08-24 | 电子科技大学中山学院 | OpenStack-based switch for campus cloud platform |
| CN211047100U (en) * | 2019-11-15 | 2020-07-17 | 兰州金科计算机信息技术有限公司 | Computer network router dust-proof equipment |
| CN111786910A (en) * | 2020-06-03 | 2020-10-16 | 肇庆市小凡人科技有限公司 | Switch with dustproof function |
| CN112736553A (en) * | 2020-12-15 | 2021-04-30 | 王凤萍 | Router with dustproof function |
-
2021
- 2021-06-11 CN CN202110654727.1A patent/CN113438560B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN113438560A (en) | 2021-09-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105245302A (en) | Multifunctional telephone broadcast system for train | |
| CN108243021A (en) | A kind of disaster tolerance emergency set and system | |
| CN113438560B (en) | Application method of mesh voice and public and private network interphone voice fusion communication based on intelligent gateway | |
| CN201336665Y (en) | Optical fiber communication system device | |
| CN102333282B (en) | Group patching method based on digital cluster telecommunication system, device and system | |
| CN103945180A (en) | Video monitoring and wireless communication combined system for mining | |
| CN203167276U (en) | A wide-area emergency interconnecting device convenient for communication between a disaster site and a command center | |
| CN101145822B (en) | Flexible master station device for satellite communication | |
| CN205031800U (en) | Scene of a fire rescue system | |
| CN101565140A (en) | Remote wireless alarm system of an elevator | |
| CN111111067A (en) | Communication and power supply water hose for fire rescue | |
| CN107733723B (en) | Double-network wire communication system host | |
| CN206422860U (en) | A kind of communication truck with intelligent video conferencing system | |
| CN203522786U (en) | Switch convenient for maintenance | |
| CN201201831Y (en) | Elevator remote wireless alarm system | |
| CN204652385U (en) | Universal audio service tester | |
| CN210958578U (en) | Movable integrated audio and video command platform with mutual backup mechanism | |
| CN205541234U (en) | Subway fire safety monitored control system | |
| CN208386555U (en) | A kind of tunnel emergency communication system | |
| CN217985075U (en) | Three-level cascade communication system with protection link | |
| CN116723494A (en) | Emergency command integration communication system | |
| CN108880967A (en) | Fire Control system | |
| CN202535377U (en) | Interphone system | |
| CN220156562U (en) | Communication quick response guarantee equipment and system | |
| CN202455361U (en) | Underground emergency broadcasting system |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |