CN114387754B - Fire-fighting linkage-based antenna control method and device - Google Patents
Fire-fighting linkage-based antenna control method and device Download PDFInfo
- Publication number
- CN114387754B CN114387754B CN202011112318.0A CN202011112318A CN114387754B CN 114387754 B CN114387754 B CN 114387754B CN 202011112318 A CN202011112318 A CN 202011112318A CN 114387754 B CN114387754 B CN 114387754B
- Authority
- CN
- China
- Prior art keywords
- fire
- antenna
- linkage
- fighting
- height
- 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
- 238000000034 method Methods 0.000 title claims abstract description 51
- 238000004891 communication Methods 0.000 claims abstract description 63
- 238000005192 partition Methods 0.000 claims abstract description 15
- 230000005540 biological transmission Effects 0.000 claims description 14
- 238000004590 computer program Methods 0.000 claims description 9
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 239000000779 smoke Substances 0.000 abstract description 79
- 230000002829 reductive effect Effects 0.000 abstract description 15
- 230000008030 elimination Effects 0.000 abstract description 10
- 238000003379 elimination reaction Methods 0.000 abstract description 10
- 238000011161 development Methods 0.000 description 22
- 239000003595 mist Substances 0.000 description 10
- 239000002245 particle Substances 0.000 description 8
- 239000007921 spray Substances 0.000 description 8
- 238000009434 installation Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 230000005855 radiation Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000013459 approach Methods 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/08—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using communication transmission lines
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
- H01Q3/04—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole for varying one co-ordinate of the orientation
Abstract
The embodiment of the invention provides an antenna control method and device based on fire-fighting linkage, wherein the method comprises the following steps: and receiving linkage control instructions sent by the fire-fighting linkage system through the antenna control device, and adjusting the heights and/or emission parameters of the antennas of the fire-fighting partitions associated with the fire positions according to the linkage control instructions. According to the fire-fighting linkage-based antenna control method and device provided by the embodiment of the invention, the fire-fighting subareas where the fire disaster positions are located and the fire-fighting subareas of the relevant areas where the fire disaster positions are located can penetrate through the smoke residence layer area, the attenuation of smoke to signals can be reduced, the signal energy emitted by the antenna is higher, more concentrated and farther in propagation distance, the communication requirements of people evacuation and escape, trapped people rescue and fire disaster elimination can be met when the fire disaster occurs, and more effective communication guarantee can be provided.
Description
Technical Field
The invention relates to the technical field of communication, in particular to an antenna control method and device based on fire-fighting linkage.
Background
Communication guarantee in the fire scene is very important for fire rescue, and can provide help for people evacuation escape, trapped people rescue and fire disaster elimination.
The high-frequency band communication signal has the phenomenon of attenuation caused by smoke in a fire smoke scene (namely 'smoke attenuation') and particularly has larger smoke attenuation loss in an indoor scene. In addition, in the fire rescue scene, due to factors such as large-flow personnel evacuation, rescue equipment approach, wireless search and rescue development and the like, the demand for wireless communication can be suddenly increased in a short time. Therefore, when a fire disaster occurs, the wireless indoor communication system is difficult to meet the communication requirements of people evacuation and escape, trapped people rescue and fire disaster elimination, and cannot provide effective communication guarantee.
Disclosure of Invention
The embodiment of the invention provides an antenna control method and device based on fire-fighting linkage, which are used for solving the defect of poor wireless communication effect when a fire disaster occurs in the prior art and realizing the guarantee of wireless communication of a fire scene.
The embodiment of the invention provides an antenna control method based on fire-fighting linkage, which comprises the following steps:
receiving a linkage control instruction sent by a fire-fighting linkage control system;
according to the linkage control instruction, adjusting the height and/or the emission parameters of the antenna;
the linkage control instruction is an instruction sent to the antenna control devices of a plurality of fire-fighting subareas associated with the fire position after the fire position is confirmed by the fire-fighting linkage control system.
According to an embodiment of the invention, the fire-fighting linkage-based antenna control method includes: at least one of beam width, antenna weight, and transmit power.
According to an embodiment of the invention, the method for controlling the antenna based on fire-fighting linkage comprises the following specific steps of:
adjusting the height of the antenna;
and if the height adjustment of the antenna is judged to be completed, adjusting the transmitting parameters of the antenna.
According to an embodiment of the invention, the method for controlling the antenna based on fire-fighting linkage comprises the following specific steps of:
adjusting the height of the antenna;
and if the time length from which the linkage control instruction is received is judged to reach a preset time length threshold, adjusting the transmitting parameters of the antenna.
According to an embodiment of the invention, the method for controlling the antenna based on fire-fighting linkage comprises the following specific steps:
and lowering the antenna so that the difference between the height of the antenna after adjustment and the height of the antenna before adjustment meets a preset condition.
According to an embodiment of the invention, the method for controlling the antenna based on fire-fighting linkage comprises the following specific steps:
decreasing beam width, adjusting antenna weights, or increasing transmit power.
According to an embodiment of the invention, after adjusting the height and/or the emission parameters of the antenna according to the linkage control instruction, the method further comprises:
receiving a linkage ending instruction sent by the fire-fighting linkage control system;
restoring the height and/or emission parameters of the antenna to a state before adjustment according to the linkage ending instruction;
the linkage ending instruction is an instruction sent to the antenna control devices of a plurality of fire-fighting partitions associated with the fire position after the fire control linkage control system confirms that the fire is ended.
The embodiment of the invention also provides an antenna control device based on fire-fighting linkage, which comprises:
the communication module is used for receiving the linkage control instruction sent by the fire-fighting linkage control system;
the control module is used for adjusting the height and/or the emission parameters of the antenna according to the linkage control instruction;
the linkage control instruction is an instruction sent to the antenna control devices of a plurality of fire-fighting subareas associated with the fire position after the fire position is confirmed by the fire-fighting linkage control system.
The embodiment of the invention also provides electronic equipment, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor realizes the steps of the fire-fighting linkage-based antenna control method when executing the program.
The embodiment of the invention also provides a non-transitory computer readable storage medium, on which a computer program is stored, which when executed by a processor, implements the steps of the fire-fighting linkage-based antenna control method as described in any one of the above.
According to the fire-fighting linkage-based antenna control method and device, the heights and/or the emission parameters of the antennas of a plurality of fire-fighting subareas related to the fire position are adjusted according to the linkage control instruction sent by the received fire-fighting linkage system, so that the antennas penetrate through a smoke resident layer area and/or emit signals with higher energy and more concentrated energy, the attenuation of smoke to the signals can be reduced, the propagation distance of the signals emitted by the antennas is farther, the anti-interference capability is stronger, the communication requirements of people evacuation and escape, trapped people rescue and fire disaster elimination can be met when a fire disaster occurs, and more effective communication guarantee can be provided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic flow chart of an antenna control method based on fire-fighting linkage according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an antenna control device based on fire-fighting linkage according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the embodiments of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In describing embodiments of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in embodiments of the present invention will be understood in detail by those of ordinary skill in the art.
In order to overcome the problems in the prior art, the embodiment of the invention provides an antenna control method and device based on fire-fighting linkage.
Fig. 1 is a schematic flow chart of an antenna control method based on fire-fighting linkage according to an embodiment of the present invention. The following describes an antenna control method based on fire-fighting linkage according to an embodiment of the present invention with reference to fig. 1. As shown in fig. 1, the method includes: step S101, a linkage control instruction sent by a fire-fighting linkage control system is received.
The linkage control instruction is an instruction sent to the antenna control devices of a plurality of fire-fighting subareas associated with the fire position after the fire position is confirmed by the fire-fighting linkage control system.
The execution main body of the fire-fighting linkage-based antenna control method provided by the embodiment of the invention is a fire-fighting linkage-based antenna control device (hereinafter referred to as an "antenna control device").
Specifically, the fire automatic alarm system can discover fire and alarm at the first time through the triggering device, the fire alarm device, the linkage output device and the device with other auxiliary functions, and transmit the acquired information to the fire alarm control system.
The fire alarm control system may receive information transmitted from the fire automatic alarm system, and may determine a fire location based on the information and record the relevant information. The fire alarm control system can also start the automatic fire extinguishing equipment and the fire control linkage control equipment through the automatic fire control fire extinguishing control system and the fire control linkage control system.
The fire automatic alarm system can convert physical information such as smoke, heat generated by combustion and the position of fire occurrence into an electric signal to be transmitted to the fire alarm controller.
It should be noted that, the apparatus in the wireless indoor communication system may include: an antenna, a transmitter, a transducer, etc. Wherein the antenna is used to transmit the communication signal.
When a fire occurs, smoke generated by the fire rises to form a smoke resident layer on the ceiling of the building. The high-frequency band communication signal has the phenomenon of attenuation caused by smoke in a fire smoke scene. The installation position of the existing antenna and the smoke resident layer are in the same area, and the smoke resident layer directly influences signals emitted by the antenna, so that the signals are attenuated, and further wireless communication is influenced.
In the existing 5G frequency band, the frequency range of 2.6GHz is 2515MHz to 2675MHz, and the frequency range of 4.9GHz is 4800MHz to 4900MHz. The dominant frequency band of millimeter waves is distributed between 30GHz and 300 GHz. The 5G coverage frequency at the present stage is mainly 2.6 GHz.
The mass concentration and density of smoke gradually increased to peak within 6 minutes from the discovery of the fire. The particle size in the smoke increases continuously over time from the discovery of the fire, with the effect of agglomeration, which causes an increasing particle volume. The mass concentration and density of smoke and the particle volume of the smoke generated by the fire reach a peak value within 4 to 5 minutes from the discovery of the fire, and the smoke increases rapidly from the initial stage to the complete development stage of the fire, and the smoke reaches a peak value and then gradually decreases.
When a fire occurs, the 2.6GHz signal decays in the indoor fire environment from 0.3dB to 1.6dB in span. The mass concentration and density of smoke and the particle volume from a fire are determining factors for signal attenuation.
On the one hand, when a fire disaster occurs in a fire-fighting subarea to which an antenna belongs, from an initial smoldering stage of the fire disaster to a complete development stage of the fire disaster, microwave signals and millimeter waves of the high frequency band are attenuated by fire disaster smoke, and the higher the signal frequency band emitted by the antenna is, the larger the attenuation of the signals influenced by the smoke is, so that the wireless indoor communication system cannot provide effective communication guarantee.
On the other hand, under the conventional state, the antenna emission parameters are comprehensively evaluated according to the factors such as application scenes, user demands, the loading capacity of the antenna, investment cost accounting and the like, and the optimal parameter setting is performed. When a fire disaster happens, the wireless communication requirements of the fire scene are suddenly increased due to the fact that trapped people gradually gather in fire channels, refuge layers or other refuge areas, rescue equipment approach, wireless search and rescue and other factors. At this time, the communication signal provided in the conventional state of the wireless indoor communication system cannot meet the wireless communication requirement in the fire scene, so that effective communication guarantee cannot be provided.
For these two reasons, in the event of a fire, a conventional wireless indoor communication system cannot guarantee wireless communication at the fire scene.
The common fire alarm control system and the wireless indoor communication system are two independent systems, and equipment in the wireless indoor communication system does not belong to fire control linkage control equipment. Therefore, the wireless indoor communication system and the fire alarm control system can be linked, equipment in the wireless indoor communication system can be used as one of fire-fighting linkage control equipment, and corresponding adjustment is performed on the occurrence of a fire according to a linkage control instruction transmitted by the fire-fighting linkage control system so as to ensure the signal intensity after the occurrence of the fire, thereby providing more effective communication guarantee on a fire scene.
In order to ensure wireless communication of a fire scene, the smoke attenuation loss of communication signals can be reduced by controlling the position and parameters of the antenna, and the communication requirement of the fire scene is met.
Specifically, the wireless indoor communication system and the fire alarm control system can be linked through the antenna control device, and the antenna in the wireless indoor communication system can be correspondingly adjusted through the antenna control device.
The fire alarm control system can determine the fire position according to the information sent by the fire automatic alarm system and send the fire position information to the fire control linkage control system. After receiving the fire position information and confirming the fire position, the fire control linkage control system can send linkage control instructions to the antenna control devices of a plurality of fire-fighting subareas associated with the fire position according to the fire position information.
The antenna control device of each fire-fighting subarea related to the fire position can receive the linkage control instruction sent by the fire-fighting linkage control system.
It should be noted that, the fire location associated fire protection zones may include: fire zones where the fire is located, and fire zones of the relevant area of the fire location, such as: for fire-fighting partitions such as part or all of halls, rooms and the like, fire-fighting partitions such as evacuation walkways and the like of the upper layer and/or the lower layer corresponding to the fire position in the relevant floors of the fire position in a large market, a large supermarket, a large hotel, a large business building, KTV and the like; for refuge floors and evacuation walkways of all floors of super high-rise and high-rise buildings, the plurality of fire-fighting partitions associated with the fire position can be the floor where the fire position is located, part or all of the fire-fighting partitions of the refuge floors, the evacuation walkways of all floors and other fire-fighting partitions; for movie theatres, concert halls and exhibition centers, the fire disaster position-related fire fighting partitions can be the fire fighting partitions of part or all of the floors, halls, rooms and the like where the fire disaster positions are located, and the fire fighting partitions of evacuation walkways and the like of each layer.
Step S102, adjusting the height and/or the emission parameters of the antenna according to the linkage control instruction.
When a fire occurs, the temperature of smoke generated by the fire is high, the smoke gradually rises on the ceiling of a building to form a smoke resident layer, and the mass concentration and density of the smoke in the smoke resident layer and the particle volume of the smoke are far greater than those of other areas on the fire scene. The antenna and the smoke resident layer are in the same area, and signals emitted by the antenna directly enter the smoke resident layer and can reach the receiving end only by penetrating through the smoke resident layer. The signal decays more during its passage through the smoke resident layer.
By adjusting the height of the antenna, the antenna can penetrate through the smoke residence layer area, and the attenuation of the smoke to wireless signals is reduced.
It can be appreciated that in the embodiments of the present invention, the antenna in the wireless indoor communication system is installed in a height-adjustable manner.
For example, the antenna can be optimally upgraded according to an L-shaped bracket of a common indoor antenna, a start-stop sensor is installed, the antenna is installed and fixed below a screw, and a lifting gear is arranged on the screw, so that the height of the antenna can be adjusted through rotation of the lifting gear.
By adjusting the antenna emission parameters, the energy of the signals emitted by the antenna can be high or more concentrated, and the propagation distance and the anti-interference capability of the signals emitted by the antenna are further, so that the communication requirement of a fire scene is met.
It should be noted that, the attenuation of the smoke to the wireless signal can be reduced by adjusting the height of the antenna or adjusting the transmitting parameter of the antenna alone, or by combining the method of adjusting the height of the antenna and adjusting the transmitting parameter of the antenna.
According to the embodiment of the invention, the heights and/or the emission parameters of the antennas of a plurality of fire-fighting subareas related to the fire position are adjusted according to the received linkage control instruction sent by the fire-fighting linkage system, so that the antennas penetrate through a smoke resident layer area and/or the emitted signal energy is higher and more concentrated, the attenuation of smoke to the signal can be reduced, the propagation distance of the signal emitted by the antennas is longer, the anti-interference capability is stronger, the communication requirements of personnel evacuation and escape, trapped personnel rescue and fire disaster elimination can be met when a fire disaster occurs, and more effective communication guarantee can be provided.
Based on the content of the above embodiments, the transmission parameters include: at least one of beam width, antenna weight, and transmit power.
The intensity of the antenna transmitting signal, the main coverage range of the antenna, the directionality of the signal and the like can be controlled by adjusting the beam width, the antenna weight or the transmitting power, so that the anti-interference capability of the signal is improved, and the wireless communication requirement of a fire scene can be met under the special scene when a fire disaster occurs.
Specifically, the beam width is one of parameters describing the antenna performance, and refers to the angle between two directions in which the radiation power is reduced by 3dB on both sides of the maximum radiation direction. The lobe with the highest radiation intensity is called a main lobe, the rest lobes are called side lobes or side lobes, and the direction of the lobe with the lowest radiation intensity is the maximum radiation direction.
Antenna weights describing the frequency bands and lobes supported by the antenna, and corresponding built-in downtilt angles. The antenna weight can influence the coverage area of the signal through the amplitude and the phase, and particularly, the size of the transmitting power can be adjusted by changing the amplitude, and the transmitting wave beam can be changed by comprehensively using the amplitude and the phase.
The transmitting power refers to the energy of electromagnetic waves transmitted by an antenna within a certain frequency band. The greater the transmit power, the stronger the signal strength and the relatively far away the signal is transmitted.
According to the embodiment of the invention, the beam width, the antenna weight and the transmitting power are independently or combined and adjusted, so that the intensity of an antenna transmitting signal, the main coverage range of the antenna and the directionality of the signal can be controlled, the communication requirements of people evacuation and escape, trapped people rescue and fire disaster elimination can be met when a fire disaster occurs, and more effective communication guarantee can be provided.
Based on the foregoing embodiments, the specific steps of adjusting the height and/or the emission parameter of the antenna according to the linkage control instruction include: the height of the antenna is adjusted.
According to different stages of fire development in a fire scene, the height and the emission parameters of the antenna can be respectively adjusted.
Specifically, the development of fire is divided into four phases: an initial stage, a development stage, a violent stage, and a descent and extinction stage. Wherein, the initial stage and the development stage of the fire development generate smoke and gradually form a smoke resident layer on the ceiling of the building. When the fire is continuously developed to a violent stage, the thickness of the smoke resident layer reaches a critical value, and the phenomenon that the smoke flows back downwards begins to appear.
The height of the antenna is adjusted, so that the attenuation of fire smoke to signals emitted by the antenna can be reduced in the initial and development stages of fire development.
The antenna control device can adjust the height of the antenna so that the antenna can penetrate through the smoke residence layer.
And if the height adjustment of the antenna is judged to be completed, adjusting the transmitting parameters of the antenna.
When the fire disaster progresses to a violent stage and the smoke flows back downwards, the attenuation effect of the smoke on the signal emitted by the antenna cannot be reduced by adjusting the height of the antenna. At this time, the wireless communication of the fire scene can be ensured by adjusting the transmitting parameters of the antenna.
Specifically, the antenna control device may determine whether the height adjustment of the antenna is completed.
If the fire is considered to have progressed to a violent stage, the antenna control device can adjust the transmission parameters of the antenna, can enhance the energy of the signal transmitted by the antenna, and can compensate the signal attenuation caused by smoke.
According to the embodiment of the invention, the antenna penetrates through the smoke resident layer by adjusting the height of the antenna in the initial stage and the development stage of the fire development, so that the attenuation of smoke to signals is reduced, the emission parameters of the antenna are adjusted in the violent stage of the fire development, the energy of the signals emitted by the antenna is enhanced, the attenuation of the signals caused by the smoke is compensated, the communication requirements of people evacuation and escape, trapped people rescue and fire disaster elimination can be met when a fire disaster occurs, and the wireless communication requirements of a fire scene can be better met.
Based on the foregoing embodiments, the specific steps of adjusting the height and/or the emission parameter of the antenna according to the linkage control instruction include: the height of the antenna is adjusted.
According to different stages of fire development in a fire scene, the height and the emission parameters of the antenna can be respectively adjusted.
Specifically, the development of fire is divided into four phases: an initial stage, a development stage, a violent stage, and a descent and extinction stage. Wherein, the initial stage and the development stage of the fire development gradually generate smoke and form a smoke resident layer on the ceiling of the building. When the fire is continuously developed to a violent stage, the thickness of the smoke resident layer reaches a critical value, and the phenomenon of downward backflow begins to appear.
The height of the antenna is adjusted, so that the attenuation of fire smoke to signals emitted by the antenna can be reduced in the initial and development stages of fire development.
The antenna control device can adjust the height of the antenna so that the antenna can penetrate through the smoke residence layer.
And if the time length from which the linkage control instruction is received is judged to reach the preset time length threshold value, adjusting the transmitting parameters of the antenna.
In the event of a fire, certain special areas, such as refuge floors of high-rise buildings, fire-fighting channels, or other refuge areas, are populated with trapped personnel in a short period of time. If the height adjustment of the antenna in the special area is completed, the transmitting parameters of the antenna are adjusted, and the wireless communication requirement of the large-flow personnel gathered in a short time may not be met.
Further, if a fault occurs in the process of adjusting the height of the antenna, the height adjustment of the antenna cannot be completed, and the antenna control device can also adjust the transmitting parameters of the antenna.
Specifically, the time when the antenna control device receives the coordinated control instruction may be recorded, and whether the duration of the current time from the time when the antenna control device receives the coordinated control instruction reaches a preset duration threshold may be determined.
If it is reached, indicating that a lot of people may be gathering, the antenna control means adjusts the transmission parameters of the antenna.
The preset duration threshold may be determined according to practical situations, for example: the time required by the antenna to finish height adjustment in a conventional state can be obtained and used as a preset time threshold; or the shortest time for a large-flow person to reach a certain refuge area can be obtained as a preset time threshold. The embodiment of the present invention is not particularly limited with respect to the specific value of the duration threshold.
According to the embodiment of the invention, the height of the antenna is adjusted in the initial stage and the development stage of the fire development, so that the antenna penetrates through the smoke residence layer, the attenuation of smoke to signals is reduced, and after the time length of receiving the linkage control instruction reaches the preset time length threshold value, the transmitting parameters of the antenna are adjusted, so that the energy of the signals transmitted by the antenna can be enhanced, the communication requirements of people evacuation and escape, trapped people rescue and fire disaster elimination can be met when a fire disaster occurs, and the wireless communication requirements of a fire scene can be better met.
Based on the above embodiments, the specific steps of adjusting the height of the antenna include: the antenna is lowered so that the difference between the height of the antenna after adjustment and the height of the antenna before adjustment satisfies a preset condition.
The antenna is usually arranged at a position below the suspended ceiling; in a suspended ceiling-free environment, the antenna adopts a hanging bracket fixing mode.
When a fire occurs, smoke generated by the fire rises to form a smoke resident layer on the ceiling of the building. The mass concentration and density of smoke and the particle volume within the smoke residence layer are much greater than in other areas of the fire scene. The theoretical thickness range of the smoke resident layer is within 15% of the distance from the ceiling to the terrace, and in the smoke resident layer, the mass concentration and density of the smoke and the particle volume are gradually increased along with the reduction of the distance from the ceiling of the building.
The mounting position of the antenna and the smoke resident layer are in the same area, the antenna is used as a source of signal emission and is directly influenced by the smoke resident layer with high mass concentration and density and large particle volume, and signal attenuation is large.
Through descending the antenna, the antenna can penetrate through the smoke residence area as far as possible and reach the lower part of the smoke residence layer, so that signals emitted by the antenna can be directly emitted into a space with less smoke, and the attenuation of the smoke residence layer to the signals can be avoided to a great extent.
The preset conditions can be determined according to the layer height of the building, the distance between the installation position of the antenna in the fire-fighting partition and the fire-fighting nozzle, the protection area of the fire-fighting nozzle and other factors.
It should be noted that, the installation position of the antenna needs to keep a certain safety distance with the fire-fighting nozzle, so as to avoid the damage to the antenna when the fire-fighting nozzle sprays water. If the fire-fighting nozzle is rectangular, the installation position of the antenna is generally selected as the center position of the rectangle; if the fire sprinklers are arranged in a straight line, the mounting location of the antenna is generally selected at the midpoint between the two fire sprinklers. The space between the antenna and the spray heads is isolated by 1-2 meters, if the spray heads are arranged in a matrix, the spray heads are preferably arranged at the center of the matrix, and if the spray heads are arranged in a straight line, the central installation between every two adjacent spray heads is selected, so that the influence caused by the spray of the spray heads is minimal.
For example: if the floor height of the building is 3 meters, the safety distance between the installation position of the antenna and two adjacent fire-fighting nozzles is about 1.27 meters, and the protection area of the fire-fighting nozzles is 10 square meters. According to the water mist parabola of the fire-fighting nozzle during operation, the water mist sprayed by the two fire-fighting nozzles is overlapped, a zone of anhydrous mist is arranged above the overlapped water mist, and the height of the anhydrous mist zone is as follows: 10% to 15% of the ceiling-to-floor distance, i.e. less than 0.45 meters. The preset conditions that the difference between the height of the antenna after adjustment and the height of the antenna before adjustment needs to be met in the fire fighting area can be determined: the difference between the height of the antenna after adjustment and the height of the antenna before adjustment is 0.3 to 0.45 m.
If the floor height of the building is 6 meters, the safety distance between the installation position of the antenna and two adjacent fire-fighting nozzles is about 2.12 meters, and the protection area of the fire-fighting nozzles is 20 square meters. According to the water mist parabola of the fire-fighting nozzle during operation, the water mist sprayed by the two fire-fighting nozzles is overlapped, a zone of anhydrous mist is arranged above the overlapped water mist, and the height of the anhydrous mist zone is as follows: 10% to 15% of the ceiling-to-floor distance, i.e. less than 0.9 meters. The preset conditions that the difference between the height of the antenna after adjustment and the height of the antenna before adjustment needs to be met in the fire fighting area can be determined: the difference between the height of the antenna after adjustment and the height of the antenna before adjustment is 0.6 to 0.9 m.
Because of the omnidirectional antenna installed in the ceiling-mounted mode, a height adjustment space of about 0.5 m theoretically exists, wherein a certain distance needs to be reserved between the top end of the antenna and the top wall surface, for example, 50mm-70mm is selected, and the actually obtained adjustment height can be greater than or equal to 0.5 m and less than 0.6 m.
According to the embodiment of the invention, the antenna is lowered to the height difference between the height of the antenna after adjustment and the height of the antenna before adjustment through the antenna control device to meet the preset condition, the antenna passes through the smoke residence area to reach the lower part of the smoke residence layer, the signal emitted by the antenna can be directly emitted into the space with less smoke, the attenuation of the signal by the smoke residence layer can be avoided, the communication requirements of people evacuation and escape, trapped people rescue and fire disaster elimination can be met when a fire disaster occurs, and more effective communication guarantee can be provided.
Based on the foregoing content of each embodiment, the specific steps of adjusting the transmission parameters of the antenna include: decreasing beam width, adjusting antenna weights, or increasing transmit power.
The antenna control means may adjust the transmission parameters of the antenna.
Specifically, reducing the beam width can make the energy of the signals transmitted by the antenna more concentrated, the signal directivity transmitted by the antenna is better, the acting distance of the signals can be increased, and the anti-interference capability of the signals can be enhanced.
The antenna weights are typically the phases of the signals. Adjusting the antenna weights may effect changing the coverage of the transmit beam. The antenna weight can be adjusted by adjusting the built-in antenna weight or customizing a new weight according to the weight set by a manufacturer.
The increase of the transmitting power can enhance the strength of the signal transmitted by the antenna, increase the distance of signal transmission and enhance the anti-interference capability of the signal.
The transmission power can be adjusted stepwise according to attenuation values of signals with different frequencies (for example, the attenuation value of 2.7GHz is 1.6 dB), and the transmission power is increased stepwise.
According to the embodiment of the invention, the antenna control device reduces the beam width, adjusts the antenna weight or increases the transmitting power, so that the acting distance of signals can be increased, the anti-interference capability of the signals can be enhanced, the wireless communication of a fire scene can be better ensured, and the requirement of the fire scene on the wireless communication can be better met.
Based on the foregoing embodiments, after adjusting the height and/or the emission parameters of the antenna according to the linkage control instruction, the method further includes: and receiving a linkage ending instruction sent by the fire-fighting linkage control system.
The linkage ending command is a command sent to the antenna control devices of a plurality of fire-fighting subareas associated with the fire position after the fire-fighting linkage control system confirms that the fire is ended.
The fire automatic alarm system can judge whether the fire in a certain fire-fighting zone is ended or not according to the information such as smoke, heat generated by combustion or physical information such as the position of the fire when the fire happens. And if the fire automatic alarm system judges that the fire is ended, sending related information to the fire alarm control system.
The fire alarm control system can receive the information sent by the fire automatic alarm system, and can close the automatic fire extinguishing equipment and restore the fire-fighting linkage control equipment to a normal state through the automatic fire-fighting fire extinguishing control system and the fire-fighting linkage control system.
Specifically, the fire alarm control system can determine that the fire is ended according to the information sent by the fire automatic alarm system, and send relevant information to the fire control linkage control system. After receiving the information, the fire-fighting linkage control system confirms the end of the fire, and sends a linkage end instruction to the antenna control devices of a plurality of fire-fighting partitions associated with the fire position.
And the antenna control devices of the fire fighting partitions associated with the fire disaster positions receive linkage ending instructions sent by the fire fighting linkage control system.
And restoring the height and/or the emission parameters of the antenna to a state before adjustment according to the linkage ending instruction.
In the normal state, if the antenna height is reduced, normal operation of the antenna and the aesthetic appearance of the building are affected. If the signal transmitted by the antenna keeps higher power, narrower beam width or adjusts the antenna weight to be in a special state, the loss of the antenna equipment is larger, the resource waste is caused, the operation and maintenance cost is increased, and the adverse effects such as coverage area of the signal transmitted by the antenna are reduced. Therefore, after determining that the fire is over, the antenna control device needs to restore the antenna height and/or the emission parameters to the pre-adjustment state.
And each antenna control device receiving the linkage ending instruction correspondingly adjusts the antenna according to the linkage ending instruction, and restores the height and/or the emission parameters of the antenna to the state before adjustment.
Specifically, the antenna control device may raise the antenna so that the antenna height is restored to the height before adjustment.
The antenna control device can increase the beam width, adjust the antenna weight or reduce the transmitting power, so that the beam width, the antenna weight or the transmitting power is restored to the value before adjustment.
According to the embodiment of the invention, the heights and/or the emission parameters of the antennas of a plurality of fire-fighting subareas associated with the fire position are restored to the state before adjustment according to the linkage ending instruction sent by the received fire-fighting linkage control system, so that the fire-fighting subareas where the fire position is located and the antennas of the fire-fighting subareas of the relevant area of the fire position can be restored to the normal state after the fire is ended, and the antennas can work in the normal state after the fire is ended.
The fire-fighting linkage-based antenna control device provided by the embodiment of the invention is described below, and the fire-fighting linkage-based antenna control device described below and the fire-fighting linkage-based antenna control method described above can be referred to correspondingly.
Fig. 2 is a schematic structural diagram of an antenna control device based on fire-fighting linkage according to an embodiment of the present invention. Based on the content of the above embodiments, as shown in fig. 2, the apparatus includes a communication module 201 and a control module 202, where:
the communication module 201 is used for receiving a linkage control instruction sent by the fire-fighting linkage control system;
the control module 202 is configured to adjust the height and/or the emission parameter of the antenna according to the coordinated control instruction;
the linkage control instruction is an instruction sent to the antenna control devices of a plurality of fire-fighting subareas associated with the fire position after the fire position is confirmed by the fire-fighting linkage control system.
Specifically, the communication module 201 and the control module 202 are electrically connected.
The communication module 201 of the antenna control device of each fire fighting partition associated with the fire location can receive the linkage control command sent by the fire fighting linkage control system.
The control module 202 may adjust the height of the antenna or adjust the antenna transmission parameters alone, or may adjust the height of the antenna and the adjusted antenna transmission parameters in combination.
The specific method and flow of implementing corresponding functions by each module included in the fire-fighting linkage-based antenna control device are detailed in the embodiments of the fire-fighting linkage-based antenna control method, and are not repeated herein.
The fire-fighting linkage-based antenna control device is used for the fire-fighting linkage-based antenna control method of each embodiment. Therefore, the descriptions and definitions in the fire-fighting linkage-based antenna control method in the foregoing embodiments may be used for understanding the execution modules in the embodiments of the present invention.
According to the embodiment of the invention, the heights and/or the emission parameters of the antennas of a plurality of fire-fighting subareas related to the fire position are adjusted according to the received linkage control instruction sent by the fire-fighting linkage system, so that the antennas penetrate through a smoke resident layer area and/or the emitted signal energy is higher and more concentrated, the attenuation of smoke to the signal can be reduced, the propagation distance of the signal emitted by the antennas is longer, the anti-interference capability is stronger, the communication requirements of personnel evacuation and escape, trapped personnel rescue and fire disaster elimination can be met when a fire disaster occurs, and more effective communication guarantee can be provided.
Fig. 3 illustrates a physical schematic diagram of an electronic device, as shown in fig. 3, where the electronic device may include: a processor (processor) 301, a memory (memory) 302, and a bus 303; wherein the processor 301 and the memory 302 perform communication with each other through the bus 303; the processor 301 is configured to invoke computer program instructions stored in the memory 302 and executable on the processor 301 to perform the fire-fighting linkage-based antenna control method provided by the above method embodiments, the method comprising: and receiving a linkage control instruction sent by the fire-fighting linkage control system, and adjusting the height and/or the emission parameters of the antenna according to the linkage control instruction, wherein the linkage control instruction is an instruction sent to the antenna control devices of a plurality of fire-fighting subareas associated with the fire position after the fire position is confirmed by the fire-fighting linkage control system.
Further, the logic instructions in memory 302 described above may be implemented in the form of software functional units and stored in a computer readable storage medium when sold or used as a stand alone product. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a Read-only memory (ROM), a random access memory (RAM, randomAccessMemory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
In another aspect, embodiments of the present invention further provide a computer program product, including a computer program stored on a non-transitory computer readable storage medium, the computer program including program instructions which, when executed by a computer, enable the computer to perform the fire-fighting linkage-based antenna control method provided in the above method embodiments, the method including: and receiving a linkage control instruction sent by the fire-fighting linkage control system, and adjusting the height and/or the emission parameters of the antenna according to the linkage control instruction, wherein the linkage control instruction is an instruction sent to the antenna control devices of a plurality of fire-fighting subareas associated with the fire position after the fire position is confirmed by the fire-fighting linkage control system.
In still another aspect, an embodiment of the present invention further provides a non-transitory computer readable storage medium having stored thereon a computer program, which when executed by a processor, is implemented to perform the fire-fighting linkage-based antenna control method provided in the above embodiments, the method including: and receiving a linkage control instruction sent by the fire-fighting linkage control system, and adjusting the height and/or the emission parameters of the antenna according to the linkage control instruction, wherein the linkage control instruction is an instruction sent to the antenna control devices of a plurality of fire-fighting subareas associated with the fire position after the fire position is confirmed by the fire-fighting linkage control system.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. An antenna control method based on fire-fighting linkage is characterized by comprising the following steps:
receiving a linkage control instruction sent by a fire-fighting linkage control system;
according to the linkage control instruction, adjusting a transmitting parameter, or adjusting the height of an antenna and the transmitting parameter;
the linkage control instruction is an instruction sent to the antenna control devices of a plurality of fire-fighting subareas associated with the fire position after the fire position is confirmed by the fire-fighting linkage control system.
2. The fire-linkage-based antenna control method of claim 1, wherein the transmission parameters include: at least one of beam width, antenna weight, and transmit power.
3. The fire-fighting linkage-based antenna control method according to claim 1, wherein the specific steps of adjusting the height of the antenna and the transmission parameters include:
adjusting the height of the antenna;
and if the height adjustment of the antenna is judged to be completed, adjusting the transmitting parameters of the antenna.
4. The fire-fighting linkage-based antenna control method according to claim 1, wherein the specific steps of adjusting the height of the antenna and the transmission parameters include:
adjusting the height of the antenna;
and if the time length from which the linkage control instruction is received is judged to reach a preset time length threshold, adjusting the transmitting parameters of the antenna.
5. The fire-fighting linkage-based antenna control method according to claim 1, wherein the specific step of adjusting the height of the antenna comprises:
and lowering the antenna so that the difference between the height of the antenna after adjustment and the height of the antenna before adjustment meets a preset condition.
6. The fire-linkage-based antenna control method according to claim 2, wherein the specific step of adjusting the transmission parameters of the antenna comprises:
decreasing beam width, adjusting antenna weights, or increasing transmit power.
7. The fire-fighting linkage-based antenna control method according to any one of claims 1 to 6, wherein the transmitting parameters are adjusted according to the linkage control instruction; or after adjusting the height of the antenna and the transmission parameters, the method further comprises:
receiving a linkage ending instruction sent by the fire-fighting linkage control system;
restoring the height and/or emission parameters of the antenna to a state before adjustment according to the linkage ending instruction;
the linkage ending instruction is an instruction sent to the antenna control devices of a plurality of fire-fighting partitions associated with the fire position after the fire control linkage control system confirms that the fire is ended.
8. An antenna control device based on fire control linkage, characterized by comprising:
the communication module is used for receiving the linkage control instruction sent by the fire-fighting linkage control system;
the control module is used for adjusting the transmitting parameters or adjusting the height of the antenna and the transmitting parameters according to the linkage control instruction;
the linkage control instruction is an instruction sent to the antenna control devices of a plurality of fire-fighting subareas associated with the fire position after the fire position is confirmed by the fire-fighting linkage control system.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor performs the steps of the fire-fighting linkage based antenna control method according to any one of claims 1 to 7 when the program is executed.
10. A non-transitory computer readable storage medium having stored thereon a computer program, which when executed by a processor, implements the steps of the fire-fighting linkage based antenna control method according to any of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011112318.0A CN114387754B (en) | 2020-10-16 | 2020-10-16 | Fire-fighting linkage-based antenna control method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011112318.0A CN114387754B (en) | 2020-10-16 | 2020-10-16 | Fire-fighting linkage-based antenna control method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114387754A CN114387754A (en) | 2022-04-22 |
| CN114387754B true CN114387754B (en) | 2023-10-27 |
Family
ID=81192744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011112318.0A Active CN114387754B (en) | 2020-10-16 | 2020-10-16 | Fire-fighting linkage-based antenna control method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114387754B (en) |
Citations (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101299289A (en) * | 2008-04-10 | 2008-11-05 | 公安部上海消防研究所 | Independent type short message fire alarm system |
| CN101331503A (en) * | 2005-10-21 | 2008-12-24 | 科罗拉多大学董事会 | Systems and methods for receiving and managing power in wireless devices |
| CN101493981A (en) * | 2009-01-21 | 2009-07-29 | 福建火迪建筑消防工程技术服务有限公司 | Wireless independent fire alarm system |
| CA2665993A1 (en) * | 2008-05-20 | 2009-11-20 | At&T Mobility Ii Llc | Method for geo-targeting wireless emergency alerts |
| CN101925071A (en) * | 2009-06-09 | 2010-12-22 | 中国移动通信集团上海有限公司 | Signal coverage area control system, method and equipment |
| CN101942909A (en) * | 2010-09-10 | 2011-01-12 | 李爱民 | Emergency mobile communication base station device |
| CN102223595A (en) * | 2010-04-19 | 2011-10-19 | 大唐移动通信设备有限公司 | Communication method and device for safety requirements of special area |
| CN102301255A (en) * | 2008-10-03 | 2011-12-28 | 雀莱斯企业股份有限公司 | Mobile millimeter wave imaging radar system |
| CN103077580A (en) * | 2012-11-29 | 2013-05-01 | 上海万康无线智能控制系统有限公司 | Floor smoke alarm system with wireless communication function |
| CN203069778U (en) * | 2012-12-31 | 2013-07-17 | 中国科学技术大学 | Experiment apparatus for researching influences of smokes on radar life detection signal |
| CN103985218A (en) * | 2014-05-16 | 2014-08-13 | 中国矿业大学 | Electromagnetic radiation detection device and method for potential fire danger of mine |
| CN104661314A (en) * | 2013-11-25 | 2015-05-27 | 上海益尚信息科技有限公司 | Novel method for scheduling requests or emergency situations in wireless network based on relay |
| CN105870921A (en) * | 2016-05-12 | 2016-08-17 | 北京动科瑞利文科技有限公司 | Mobile emergency communication vehicle-mounted system |
| CN107073702A (en) * | 2014-09-08 | 2017-08-18 | 史丹利工具（以色列）有限公司 | Working site message center |
| CN206431779U (en) * | 2017-01-09 | 2017-08-22 | 贵州大学 | A kind of low-power consumption forest fire alarm system |
| CN107181042A (en) * | 2017-07-13 | 2017-09-19 | 苏炎杰 | Can radar communication antenna of the accurate adjustment signal reception highly with orientation |
| CN107454606A (en) * | 2017-06-22 | 2017-12-08 | 深圳市盛路物联通讯技术有限公司 | A kind of method of adjustment and system of Internet of Things access node network coverage |
| CN108124265A (en) * | 2016-11-28 | 2018-06-05 | 中国移动通信有限公司研究院 | A kind of method of adjustment and device of network coverage intensity |
| CN207650953U (en) * | 2017-12-28 | 2018-07-24 | 米秀清 | A kind of forest fire protection prior-warning device |
| CN208027532U (en) * | 2017-12-28 | 2018-10-30 | 南京华讯方舟通信设备有限公司 | Outdoor fire monitoring system |
| CN208044797U (en) * | 2018-04-24 | 2018-11-02 | 云南松果科技有限公司 | A kind of fire protection warning broadcast system interacted |
| CN108765862A (en) * | 2018-06-21 | 2018-11-06 | 江苏百舟安全科技有限公司 | It is a kind of based on the ship of wireless telecommunications fire protection warning mechanism |
| CN108872941A (en) * | 2017-05-11 | 2018-11-23 | 日本电产株式会社 | Waveguide device, the antenna assembly and radar installations for having the waveguide device |
| CN108897011A (en) * | 2018-05-11 | 2018-11-27 | 广东石油化工学院 | Dangerous goods store indoor positioning and emergency evacuation system based on wireless sense network |
| JP2019004376A (en) * | 2017-06-16 | 2019-01-10 | 大成建設株式会社 | Communication system and communication method |
| CN109565316A (en) * | 2016-11-07 | 2019-04-02 | 华为技术有限公司 | Method and apparatus in wireless communication system |
| CN109979151A (en) * | 2019-03-28 | 2019-07-05 | 赛特威尔电子股份有限公司 | A kind of smog alarm method, apparatus, smoke alarm device and storage medium |
| CN110011032A (en) * | 2019-02-21 | 2019-07-12 | 成都中技智慧企业管理咨询有限公司 | A kind of open/close control device and method of airborne emergency communication system antenna |
| CN110220979A (en) * | 2019-06-26 | 2019-09-10 | 重庆地质矿产研究院 | High and steep bank slope stability monitoring system and evaluation method based on microseism technology |
| CN111133330A (en) * | 2018-08-29 | 2020-05-08 | 深圳市大疆创新科技有限公司 | Control method and device of laser radar, laser radar and storage medium |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10559982B2 (en) * | 2015-06-10 | 2020-02-11 | Ossia Inc. | Efficient antennas configurations for use in wireless communications and wireless power transmission systems |
| US11385213B2 (en) * | 2017-05-17 | 2022-07-12 | Astronics Advanced Electronic Systems Corp. | Storage bin volume sensor with VOC sensing safety feature |
-
2020
- 2020-10-16 CN CN202011112318.0A patent/CN114387754B/en active Active
Patent Citations (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101331503A (en) * | 2005-10-21 | 2008-12-24 | 科罗拉多大学董事会 | Systems and methods for receiving and managing power in wireless devices |
| CN101299289A (en) * | 2008-04-10 | 2008-11-05 | 公安部上海消防研究所 | Independent type short message fire alarm system |
| CA2665993A1 (en) * | 2008-05-20 | 2009-11-20 | At&T Mobility Ii Llc | Method for geo-targeting wireless emergency alerts |
| CN102301255A (en) * | 2008-10-03 | 2011-12-28 | 雀莱斯企业股份有限公司 | Mobile millimeter wave imaging radar system |
| CN101493981A (en) * | 2009-01-21 | 2009-07-29 | 福建火迪建筑消防工程技术服务有限公司 | Wireless independent fire alarm system |
| CN101925071A (en) * | 2009-06-09 | 2010-12-22 | 中国移动通信集团上海有限公司 | Signal coverage area control system, method and equipment |
| CN102223595A (en) * | 2010-04-19 | 2011-10-19 | 大唐移动通信设备有限公司 | Communication method and device for safety requirements of special area |
| CN101942909A (en) * | 2010-09-10 | 2011-01-12 | 李爱民 | Emergency mobile communication base station device |
| CN103077580A (en) * | 2012-11-29 | 2013-05-01 | 上海万康无线智能控制系统有限公司 | Floor smoke alarm system with wireless communication function |
| CN203069778U (en) * | 2012-12-31 | 2013-07-17 | 中国科学技术大学 | Experiment apparatus for researching influences of smokes on radar life detection signal |
| CN104661314A (en) * | 2013-11-25 | 2015-05-27 | 上海益尚信息科技有限公司 | Novel method for scheduling requests or emergency situations in wireless network based on relay |
| CN103985218A (en) * | 2014-05-16 | 2014-08-13 | 中国矿业大学 | Electromagnetic radiation detection device and method for potential fire danger of mine |
| CN107073702A (en) * | 2014-09-08 | 2017-08-18 | 史丹利工具（以色列）有限公司 | Working site message center |
| CN105870921A (en) * | 2016-05-12 | 2016-08-17 | 北京动科瑞利文科技有限公司 | Mobile emergency communication vehicle-mounted system |
| CN109565316A (en) * | 2016-11-07 | 2019-04-02 | 华为技术有限公司 | Method and apparatus in wireless communication system |
| CN108124265A (en) * | 2016-11-28 | 2018-06-05 | 中国移动通信有限公司研究院 | A kind of method of adjustment and device of network coverage intensity |
| CN206431779U (en) * | 2017-01-09 | 2017-08-22 | 贵州大学 | A kind of low-power consumption forest fire alarm system |
| CN108872941A (en) * | 2017-05-11 | 2018-11-23 | 日本电产株式会社 | Waveguide device, the antenna assembly and radar installations for having the waveguide device |
| JP2019004376A (en) * | 2017-06-16 | 2019-01-10 | 大成建設株式会社 | Communication system and communication method |
| CN107454606A (en) * | 2017-06-22 | 2017-12-08 | 深圳市盛路物联通讯技术有限公司 | A kind of method of adjustment and system of Internet of Things access node network coverage |
| CN107181042A (en) * | 2017-07-13 | 2017-09-19 | 苏炎杰 | Can radar communication antenna of the accurate adjustment signal reception highly with orientation |
| CN207650953U (en) * | 2017-12-28 | 2018-07-24 | 米秀清 | A kind of forest fire protection prior-warning device |
| CN208027532U (en) * | 2017-12-28 | 2018-10-30 | 南京华讯方舟通信设备有限公司 | Outdoor fire monitoring system |
| CN208044797U (en) * | 2018-04-24 | 2018-11-02 | 云南松果科技有限公司 | A kind of fire protection warning broadcast system interacted |
| CN108897011A (en) * | 2018-05-11 | 2018-11-27 | 广东石油化工学院 | Dangerous goods store indoor positioning and emergency evacuation system based on wireless sense network |
| CN108765862A (en) * | 2018-06-21 | 2018-11-06 | 江苏百舟安全科技有限公司 | It is a kind of based on the ship of wireless telecommunications fire protection warning mechanism |
| CN111133330A (en) * | 2018-08-29 | 2020-05-08 | 深圳市大疆创新科技有限公司 | Control method and device of laser radar, laser radar and storage medium |
| CN110011032A (en) * | 2019-02-21 | 2019-07-12 | 成都中技智慧企业管理咨询有限公司 | A kind of open/close control device and method of airborne emergency communication system antenna |
| CN109979151A (en) * | 2019-03-28 | 2019-07-05 | 赛特威尔电子股份有限公司 | A kind of smog alarm method, apparatus, smoke alarm device and storage medium |
| CN110220979A (en) * | 2019-06-26 | 2019-09-10 | 重庆地质矿产研究院 | High and steep bank slope stability monitoring system and evaluation method based on microseism technology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114387754A (en) | 2022-04-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101764088B1 (en) | Antenna having a beam interrupter for increased throughput | |
| US7555261B2 (en) | Repeater system for strong signal environments | |
| US5355520A (en) | In-building microwave communication system permits frequency refuse with external point-to-point microwave systems | |
| US5496966A (en) | Method for controlling indoor electromagnetic signal propagation | |
| US9742060B2 (en) | Ceiling assembly with integrated repeater antenna | |
| CN114387754B (en) | Fire-fighting linkage-based antenna control method and device | |
| KR101797140B1 (en) | Control system for fire-fighting facilities | |
| JP2024505881A (en) | smart repeater system | |
| CN115228030A (en) | Fire extinguishing method and device | |
| KR20010110677A (en) | Method and device at a transmitter and receiver unit in a mobile telephone system | |
| JP3536265B2 (en) | Electromagnetic shielding building | |
| KR102166152B1 (en) | Operation control system of sprinkler based on environment factor and setting factor | |
| JP2581608B2 (en) | Radio relay for indoor wireless communication | |
| KR20110018932A (en) | Auto sprinkler head | |
| CN107256615A (en) | A kind of intelligent energy accumulating firefighting monitoring system | |
| CN109149049A (en) | A kind of new indoor covering antenna | |
| WO2020074967A1 (en) | Floor panel | |
| Alade et al. | Spectral efficiency analysis of distributed antenna system for in-building wireless communication | |
| KR101629955B1 (en) | Apparatus for monitoring relay and method thereof | |
| Lin | Microwave exposure and safety associated with personal wireless telecommunication base stations | |
| KR102496343B1 (en) | Providing method for a fire management system | |
| KR102419690B1 (en) | Fire fighting system for buildings | |
| JP3166023B2 (en) | Wireless zone configuration method | |
| JP2000234403A (en) | Electromagnetic wave shield building prepared for radio lan | |
| US20230030903A1 (en) | Engineered wood panel with connectivity layer |
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 |