CN116367084B - Method for installing wireless repeater for fire-fighting detection equipment - Google Patents
Method for installing wireless repeater for fire-fighting detection equipment Download PDFInfo
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- H—ELECTRICITY
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
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- G08B17/00—Fire alarms; Alarms responsive to explosion
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
- G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/04—Terminal devices adapted for relaying to or from another terminal or user
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Abstract
The invention provides an installation method of a wireless repeater for fire-fighting detection equipment, which comprises the following steps: building a building/construction model, and pre-positioning wireless front-end fire-fighting equipment and a fire-fighting control host in the model according to the installation requirement of the fire-fighting equipment; establishing a three-dimensional coordinate system according to a building/construction model, carrying out the optimization design of a tree structure on the installation position and the use quantity of the wireless repeater by establishing a relay signal attenuation vector model through the coordinate information of the positioned wireless front-end fire-fighting equipment and the fire-fighting control host in the three-dimensional coordinate system, and acquiring the coordinate information of the wireless repeater in the three-dimensional coordinate system; mapping coordinate information of the wireless repeater in a three-dimensional coordinate system to an actual building to obtain an actual installation position of the wireless repeater; and installing the wireless repeaters layer by layer, and after each layer of installation is completed, judging the sensitivity of the current layer of wireless repeaters to send and receive signals to debug so as to ensure that the current layer of wireless repeaters are effectively installed until all the wireless repeaters are installed and debugged. By adopting the invention, the optimal installation and the effective use of the on-site wireless fire-fighting equipment are realized on the premise of low equipment cost.
Description
Technical Field
The invention relates to an installation method of a wireless repeater for fire-fighting detection equipment, and belongs to the technical field of wireless fire-fighting equipment installation.
Background
The wireless arrangement of fire-fighting equipment in a spatially wide environment, where the coverage of wireless signals is more important than bandwidth and speed, the use of wireless repeaters to extend the coverage of base stations is certainly a preferred option.
However, in the prior art, for the wireless repeater disposed between the wireless front-end fire protection device and the fire control host, the selection of the installation position and the determination of the number thereof are almost manually experienced, and the installation in this case has the following disadvantages: 1. the wireless repeater is low in installation efficiency; 2. the installer self-defines the installation position, so that the unreasonable installation position is easy to occur, on one hand, the number of the wireless repeaters is increased, the installation cost is increased, and on the other hand, the signal transmission distance is prolonged or the signal transmission is far around, thereby affecting the signal transmission efficiency or accuracy; 3. the wireless repeater is installed without clear relative position relationship, which is inconvenient to manage and maintain.
Disclosure of Invention
The invention provides a high-efficiency and scientific installation method of a wireless repeater for fire-fighting equipment, and aims to realize optimal installation and effective use of on-site fire-fighting wireless equipment on the premise of low equipment cost.
The invention is implemented by the following technical scheme: the installation method of the wireless repeater for the fire-fighting detection equipment is characterized by comprising the following steps of:
building a building/construction model, and pre-positioning wireless front-end fire-fighting equipment and a fire-fighting control host according to fire-fighting equipment installation requirements in the building/construction model;
establishing a three-dimensional coordinate system according to a building/construction model, carrying out the optimization design of a tree structure on the installation position and the use quantity of the wireless repeater by establishing a relay signal attenuation vector model through the coordinate information of the positioned wireless front-end fire-fighting equipment and the fire-fighting control host in the three-dimensional coordinate system, and acquiring the coordinate information of the wireless repeater in the three-dimensional coordinate system;
mapping coordinate information of the wireless repeater in a three-dimensional coordinate system to an actual building to obtain an actual installation position of the wireless repeater;
and installing the wireless repeaters layer by layer according to the sequence from the nth layer to the 1 st layer, and after each layer of installation is completed, judging the sensitivity of the current layer wireless repeater for receiving and transmitting signals with the previous layer of wireless repeater to debug so as to ensure that the current layer wireless repeater is installed effectively until all the wireless repeaters are installed and debugged.
The relay signal attenuation vector model specifically comprises the following steps: pl(s) =pl (s 0) +10αlg (s/s 0) +β+γ, where Pl(s) is the energy path loss of the relay signal through a distance s, s is the propagation distance of the relay signal in the indoor space, s0 is the reference distance, α is the indoor relay signal channel attenuation index, β is the transmission loss factor, and γ is the environmental loss factor.
The beta=β1n1+β2n2+β3n3+ … …, wherein β1, β2, β … … are the transmission loss factors without medium, respectively, and n is the number of corresponding mediums, and the transmission loss factors include but are not limited to floors, elevators, and glass.
The specific method of the step (2) is as follows:
(2.1) embedding building/construction models, fire control hosts and wireless front-end fire control equipment information installed at fixed points into a cloud platform, establishing a three-dimensional coordinate system with the fire control hosts as central origins, and recording coordinate information of each wireless front-end fire control equipment in the three-dimensional coordinate system;
and (2.2) dividing areas according to the positions of the wireless front-end devices in a three-dimensional coordinate system and the design of floor and room units, searching three wireless front-end devices at the most edge of each area, firstly calculating a position center point according to coordinate information of the three wireless front-end devices at the most edge by a cloud platform, setting a monitoring area around the position center point, ensuring that the communication distance between the farthest distance point of the monitoring area and each wireless front-end device does not exceed the communication distance of the wireless repeater, selecting an estimated installation node of the wireless repeater according to a relay signal attenuation vector model, judging whether the estimated installation node is in the monitoring area, installing an n-th layer wireless repeater at the estimated installation node if the estimated installation node is not in the monitoring area, expanding the monitoring area by taking the position center point as the center of a circle, and repeating the steps to obtain the estimated installation node.
(2.3) communicating the nth layer wireless repeater with the fire control host in a tree structure.
The following steps are added between the step (2.1) and the step (2.2): all the wireless front-end fire-fighting equipment respectively and mutually signals with the fire-fighting control host, which wireless front-end equipment can directly communicate with the fire-fighting control host is determined by storing the sending sensitivity and the receiving sensitivity during mutual transmission, which wireless front-end equipment cannot directly communicate with the fire-fighting control host, the coordinate information of the wireless front-end equipment which cannot directly communicate with the fire-fighting control host is uploaded to the cloud platform through the fire-fighting control host and marked, and the marked wireless front-end equipment cannot directly communicate with the fire-fighting control host is subjected to regional division according to the position of the marked wireless front-end equipment in a three-dimensional coordinate system and the design of floor and room units.
The tree structure in the step (2.3) is specifically designed as follows:
(2.3.1) dividing the area again according to the determined positions of all the nth layer wireless repeaters in the three-dimensional coordinate system and the design of the floors and the room units, searching two or three wireless repeaters at the extreme edge of each area, calculating a position center point of the area according to the coordinate information of each area by a cloud platform to define a monitoring area, ensuring that the communication distance between the furthest distance point of the monitoring area and each wireless repeater does not exceed the communication distance of the wireless repeater, selecting an estimated installation node of the nth-1 layer wireless repeater according to a relay signal attenuation vector model, judging whether the estimated installation node is in the monitoring area, if so, installing the nth-1 layer wireless repeater at the estimated installation node, if not, expanding the monitoring area by taking the position center point as the center of a circle, and repeating the steps to obtain the estimated installation node;
(2.3.2) repeating the step (2.3.1), and when the cloud platform calculates that the distance between at least one wireless repeater at the current layer and the position center point of the wireless repeater at the current layer exceeds the communication distance of the wireless repeater, forming a main relay chain by the coordinate information connecting point of the wireless repeater at the current layer, wherein the main relay chain terminal is communicated with the fire control host; and selecting whether to supplement the wireless repeater between two layers of wireless repeaters exceeding the communication distance of the wireless repeater according to the relay signal attenuation vector model on the relay main chain.
And under the same time reference, synchronizing the relay time of all the wireless relays by adopting a mode of timing synchronization time of the fire control host.
The invention has the beneficial effects that: in the invention, the wireless front-end fire-fighting equipment and the wireless repeater form a tree structure, and the wireless front-end fire-fighting equipment and the wireless repeater perform optimization processing in an optimal mode with the least quantity; on the premise of a small number of relays, the communication distance is effectively prolonged, and the reliability of data transmission is improved.
Drawings
Fig. 1 is a tree structure diagram of a wireless repeater according to a first embodiment of the present invention.
Fig. 2 is a tree structure diagram of a wireless repeater according to a second embodiment of the present invention.
Description of the embodiments
Examples
The installation method of the wireless repeater for the fire detection equipment shown in fig. 1 comprises the following steps:
step (1), building a building/construction model, wherein the wireless front-end fire-fighting equipment and a fire control host are pre-positioned according to the installation requirement of the fire-fighting equipment in the building/construction model, and the wireless front-end fire-fighting equipment can be any one or a combination of a plurality of wireless fire detectors, wireless manual fire alarm buttons, wireless fire audible and visual alarms, wireless fire hydrant buttons or other wireless detection/alarm equipment.
And (2) establishing a three-dimensional coordinate system according to the building/construction model, acquiring coordinate information of the positioned wireless front-end fire-fighting equipment and the fire-fighting control host in the three-dimensional coordinate system, optimally designing a tree structure of the installation position and the use number of the wireless repeater by establishing a relay signal attenuation vector model, and acquiring the coordinate information of the wireless repeater in the three-dimensional coordinate system.
In the step (2), the installation position and the number of the wireless repeaters are optimally designed in a tree structure, and the specific method is as follows:
(2.1) embedding building/construction models, fire control hosts and wireless front-end fire control equipment information installed at fixed points into a cloud platform, establishing a three-dimensional coordinate system with the fire control hosts as central origins, and recording coordinate information of each wireless front-end fire control equipment in the three-dimensional coordinate system;
(2.2) dividing the areas according to the positions of the wireless front-end devices in a three-dimensional coordinate system and the design of floor and room units, forming a first area, a second area, a third area, a fourth area, a fifth area and a sixth area as shown in fig. 1, searching three wireless front-end devices at the extreme edges of each area, calculating a position center point by a cloud platform according to the coordinate information of the three wireless front-end devices at the extreme edges, setting a monitoring area around the position center point, ensuring that the communication distance between the furthest distance point of the monitoring area and each wireless front-end device does not exceed the communication distance of the wireless repeater, selecting an estimated installation node of the wireless repeater according to a relay signal attenuation vector model, judging whether the estimated installation node is in the monitoring area, installing a 3 rd layer wireless repeater at the estimated installation node, if not, expanding the monitoring area by taking the position center point as the center of a circle, and repeating the steps to obtain the estimated installation node;
(2.3) carrying out region division again according to the determined positions of all the layer 3 wireless repeaters in a three-dimensional coordinate system and the design of floor and room units, wherein as shown in fig. 1, the layer 3 wireless repeaters in the first region, the second region and the third region form a region, the layer 3 wireless repeaters in the fourth region, the fifth region and the sixth region form a region, in each region, two or three wireless repeaters at the extreme edge of the region are searched, a monitoring region is defined by calculating a position center point according to the coordinate information of the monitoring region, the communication distance between the furthest distance point of the monitoring region and each wireless repeater is not more than that of the wireless repeater, then selecting an estimated installation node of the layer 2 wireless repeater according to a relay signal attenuation vector model, judging whether the estimated installation node is in the monitoring region, if the estimated installation node is in the monitoring region, installing the layer 2 wireless repeater at the estimated installation node, if the estimated installation node is not in the monitoring region, expanding the monitoring region by taking the position center point as a circle center, and repeating the steps to obtain the estimated installation node;
(2.4) aiming at the layer 2 wireless repeater, the cloud platform forms a main relay chain by connecting the coordinate information of the current layer wireless repeater, and the main relay chain terminal is communicated with a fire control host; and selecting whether to supplement the wireless repeater between two layers of wireless repeaters exceeding the communication distance of the wireless repeater according to the relay signal attenuation vector model on the relay main chain.
And (3) mapping the coordinate information of all the wireless repeaters in the three-dimensional coordinate system into an actual building/construction to obtain the actual installation positions of all the wireless repeaters.
And (4) installing the wireless repeaters layer by layer according to the sequence from the 3 rd layer to the 1 st layer, and after each layer of installation is completed, judging the sensitivity of the current layer wireless repeater for receiving and transmitting signals with the previous layer wireless repeater to debug so as to ensure that the current layer wireless repeater is installed effectively until all the wireless repeaters are installed and debugged.
The relay signal attenuation vector model specifically comprises the following steps: pl(s) =pl (s 0) +10αlg (s/s 0) +β+γ, where Pl(s) is the energy path loss of the relay signal through a distance s, s is the propagation distance of the relay signal in the indoor space, s0 is the reference distance, α is the indoor relay signal channel attenuation index, β is the transmission loss factor, and γ is the environmental loss factor.
The beta=β1n1+β2n2+β3n3+ … …, wherein β1, β2, β … … are the transmission loss factors without medium, respectively, and n is the number of corresponding mediums, and the transmission loss factors include but are not limited to floors, elevators, and glass.
The propagation Loss of a radio relay signal with a certain frequency is mainly Path Loss (Path Loss) which varies with distance. The penetration loss and the material of the building are larger, the barrier loss of the partition wall is generally 5-20 dB, the barrier loss of each floor layer is 20dB, the thick glass loss is 6-10 dB, and the penetration loss of the elevator is about 30 dB.
Examples
The installation method of the wireless repeater for the fire detection equipment shown in fig. 2 comprises the following steps:
step (1), building a building/construction model, wherein the wireless front-end fire-fighting equipment and a fire control host are pre-positioned according to the installation requirement of the fire-fighting equipment in the building/construction model, and the wireless front-end fire-fighting equipment can be any one or a combination of a plurality of wireless fire detectors, wireless manual fire alarm buttons, wireless fire audible and visual alarms, wireless fire hydrant buttons or other wireless detection/alarm equipment.
And (2) establishing a three-dimensional coordinate system according to the building/construction model, acquiring coordinate information of the positioned wireless front-end fire-fighting equipment and the fire-fighting control host in the three-dimensional coordinate system, optimally designing the installation position and the number of the wireless repeater in a tree structure, and acquiring the coordinate information of the wireless repeater in the three-dimensional coordinate system.
In the step (2), the installation position and the number of the wireless repeaters are optimally designed in a tree structure, and the specific method is as follows:
(2.1) embedding building/construction models, fire control hosts and wireless front-end fire control equipment information installed at fixed points into a cloud platform, establishing a three-dimensional coordinate system with the fire control hosts as central origins, and recording coordinate information of each wireless front-end fire control equipment in the three-dimensional coordinate system;
(2.2) dividing areas according to the positions of the wireless front-end fire-fighting equipment in a three-dimensional coordinate system and the design of floor and room units to form a first area, a second area, a third area, a fourth area, a fifth area and a sixth area, searching three wireless front-end equipment at the most edge of each area, calculating an effective area of a position center point of a cloud platform according to coordinate information of the three wireless front-end equipment, wherein the effective area is provided with a wireless repeater by the cloud platform, and the distance between the most distant point of the effective area and each wireless front-end equipment is required to be ensured not to exceed the communication distance of the wireless repeater;
(2.3) aiming at the layer 3 wireless repeater and the layer 2 wireless repeater, the cloud platform still adopts a tree structure to communicate with the fire control host, and the specific method is as follows: for all the determined 3 rd layer wireless repeaters, carrying out region division again according to the positions of the wireless repeaters in a three-dimensional coordinate system and the design of floor and room units, as shown in fig. 2, the 3 rd layer wireless repeaters in the first region, the second region and the third region form a region, the 3 rd layer wireless repeaters in the fourth region, the fifth region and the sixth region form a region, in each region, two or three wireless repeaters at the extreme edge of the region are searched, the cloud platform calculates an effective region in which the wireless repeater is installed by the position center point according to the coordinate information, and the distance between the furthest distance point of the effective region and each wireless front-end device is required to be ensured not to exceed the communication distance of the wireless repeater, and the 2 nd layer wireless repeater is installed in the effective region of the wireless repeater;
(2.4) aiming at the layer 2 wireless repeater and the layer 1 wireless repeater, the cloud platform still adopts a tree structure to communicate with the fire control host, and the specific method is as follows: for all the determined layer 2 wireless repeaters, carrying out region division again according to the positions of the wireless repeaters in a three-dimensional coordinate system and the design of floor and room units, as shown in fig. 2, all the layer 2 wireless repeaters form a region, searching two or three wireless repeaters at the most edge of the region, calculating the effective region of the wireless repeater by a position center point division according to coordinate information of the cloud platform, and ensuring that the distance between the most distant point of the effective region and each wireless front-end device is not more than the communication distance of the wireless repeater, wherein the effective region of the wireless repeater is used for installing and arranging the layer 1 wireless repeater;
(2.5) aiming at the layer 1 wireless repeater and the fire control host, the cloud platform calculates whether the distance between the position center point of the layer 1 wireless repeater and the fire control host exceeds the communication distance of the wireless repeater, if so, the wireless repeater is supplemented between the layer 1 wireless repeater and the fire control host, and if not, the layer 1 wireless repeater is directly in communication connection with the fire control host.
Mapping coordinate information of the wireless repeater in a three-dimensional coordinate system to an actual building/construction to obtain an actual installation position of the wireless repeater; the three-dimensional space locator can be used in cooperation when finding the installation position of the wireless repeater in an actual building/construction.
And (4) installing the wireless repeaters layer by layer, and after each layer of installation is completed, debugging according to the sensitivity of the current layer of wireless repeaters for receiving and transmitting signals so as to ensure that the current layer of wireless repeaters are effectively installed until all the wireless repeaters are installed and debugged.
And (5) synchronizing the relay time of all the wireless relays by adopting a fire control host timing synchronization time mode under the same time reference.
Examples
The installation method of the wireless repeater for the fire-fighting detection equipment comprises the following steps:
step (1), building a building/construction model, wherein the wireless front-end fire-fighting equipment and a fire control host are pre-positioned according to the installation requirement of the fire-fighting equipment in the building/construction model, and the wireless front-end fire-fighting equipment can be any one or a combination of a plurality of wireless fire detectors, wireless manual fire alarm buttons, wireless fire audible and visual alarms, wireless fire hydrant buttons or other wireless detection/alarm equipment.
And (2) establishing a three-dimensional coordinate system according to the building/construction model, acquiring coordinate information of the positioned wireless front-end fire-fighting equipment and the fire-fighting control host in the three-dimensional coordinate system, optimally designing the installation position and the number of the wireless repeater in a tree structure, and acquiring the coordinate information of the wireless repeater in the three-dimensional coordinate system.
In the step (2), the installation position and the number of the wireless repeaters are optimally designed in a tree structure, and the specific method is as follows:
(2.1) embedding building/construction models, fire control hosts and wireless front-end fire control equipment information installed at fixed points into a cloud platform, establishing a three-dimensional coordinate system with the fire control hosts as central origins, and recording coordinate information of each wireless front-end fire control equipment in the three-dimensional coordinate system;
and (2.2) all the wireless front-end fire-fighting equipment and the fire-fighting control host are respectively signaled to each other, which wireless front-end equipment can be directly communicated with the fire-fighting control host is determined by storing the transmitting sensitivity and the receiving sensitivity during mutual transmission, which wireless front-end equipment cannot be directly communicated with the fire-fighting control host, the coordinate information of the wireless front-end equipment which cannot be directly communicated with the fire-fighting control host is uploaded to the cloud platform through the fire-fighting control host and marked, and the marked wireless front-end equipment cannot be directly communicated with the fire-fighting control host is subjected to regional division according to the position of the marked wireless front-end equipment in a three-dimensional coordinate system and the design of floor and room units.
(2.3) dividing areas according to the positions of the wireless front-end devices in a three-dimensional coordinate system and the design of floor and room units, searching three wireless front-end devices at the extreme edges of each area, calculating an effective area of a position center point of a cloud platform according to coordinate information of the three wireless front-end devices, wherein the distance between the furthest distance point of the effective area and each wireless front-end device is not more than the communication distance of the wireless repeater, and installing and setting an nth layer of wireless repeater in the effective area of the wireless repeater;
(2.4) aiming at the nth layer wireless repeater and other layers of wireless repeaters needing to be arranged between the nth layer wireless repeater and the fire control host, the cloud platform still adopts a tree structure to communicate with the fire control host, and the specific method is as follows:
(2.4.1) dividing the determined n-th layer wireless repeater into areas again according to the positions of the n-th layer wireless repeater in a three-dimensional coordinate system and the design of floors and room units, searching three wireless repeaters at the extreme edges of each area, calculating the effective area of the wireless repeater installed by the central point of the position according to the coordinate information of the three wireless repeaters, and ensuring that the distance between the furthest distance point of the effective area and each wireless front-end device is not more than the communication distance of the wireless repeater, wherein the n-1-th layer wireless repeater is installed in the effective area of the wireless repeater;
(2.4.2) repeating the step (2.4.1), and when the cloud platform calculates that the distance between at least one wireless repeater at the current layer and the position center point of the wireless repeater at the current layer exceeds the communication distance of the wireless repeater, forming a main relay chain by the coordinate information connecting point of the wireless repeater at the current layer, wherein the main relay chain terminal is communicated with the fire control host; and on the relay main chain, selecting whether to supplement the wireless relay between two layers of wireless relays exceeding the communication distance of the wireless relay according to the requirement.
And (3) mapping the coordinate information of the wireless repeater in the three-dimensional coordinate system into an actual building/construction to acquire the actual installation position of the wireless repeater.
And (4) installing the wireless repeaters layer by layer, and after each layer of installation is completed, judging the sensitivity of the current layer of wireless repeaters for receiving and transmitting signals to debug so as to ensure that the current layer of wireless repeaters are effectively installed until all the wireless repeaters are installed and debugged.
Claims (7)
1. The installation method of the wireless repeater for the fire-fighting detection equipment is characterized by comprising the following steps of:
(1) Building a building/construction model, and pre-positioning wireless front-end fire-fighting equipment and a fire-fighting control host according to fire-fighting equipment installation requirements in the building/construction model;
(2) Establishing a three-dimensional coordinate system according to a building/construction model, optimally designing the installation position and the use quantity of the wireless repeater in a tree structure through the coordinate information of the positioned wireless front-end fire-fighting equipment and the fire-fighting control host in the three-dimensional coordinate system, and acquiring the coordinate information of the wireless repeater in the three-dimensional coordinate system;
(3) Mapping coordinate information of the wireless repeater in a three-dimensional coordinate system to an actual building to obtain an actual installation position of the wireless repeater;
(4) Installing the wireless repeaters layer by layer according to the sequence from the nth layer to the 1 st layer, wherein n is the number of layers of the wireless repeaters, and after the installation of each layer is completed, judging the sensitivity of the current layer wireless repeater to send and receive signals with the previous layer wireless repeater to debug so as to ensure that the installation of the current layer wireless repeater is effective until the installation and debugging of all the wireless repeaters are completed;
the specific method of the step (2) is as follows:
(2.1) in the three-dimensional coordinate system, all the wireless front-end devices are divided into areas according to the positions of the wireless front-end devices in the three-dimensional coordinate system and the design of floor and room units;
(2.2) in each area, searching three wireless front-end devices at the most edge of the area, calculating a position center point according to coordinate information of the three wireless front-end devices at the most edge, setting a spherical monitoring area with the radius of An according to a relay signal attenuation vector model by taking the position center point as a circle center, ensuring that the furthest distance point of each wireless front-end device from the spherical monitoring area does not exceed the communication distance of a wireless repeater, installing An nth layer wireless repeater in the spherical monitoring area with the radius of An, and if the furthest distance point of one wireless front-end device from the spherical monitoring area exceeds the communication distance of the wireless repeater, carrying out area division again on the wireless front-end devices and repeating the steps;
(2.3) communicating the nth layer wireless repeater with the fire control host in a tree structure.
2. The method for installing a wireless repeater for fire detection equipment according to claim 1, wherein the following steps are added between the step (2.1) and the step (2.2): all the wireless front-end fire-fighting equipment respectively and mutually signals with the fire-fighting control host, which wireless front-end equipment can directly communicate with the fire-fighting control host is determined by storing the sending sensitivity and the receiving sensitivity during mutual transmission, which wireless front-end equipment cannot directly communicate with the fire-fighting control host, the wireless front-end equipment which cannot directly communicate with the fire-fighting control host is marked, and the marked wireless front-end equipment which cannot directly communicate with the fire-fighting control host is subjected to regional division according to the position of the marked wireless front-end equipment in a three-dimensional coordinate system and the design of floor and room units.
3. The method for installing a wireless repeater for fire detection equipment according to claim 1, wherein the tree structure in the step (2.3) is designed as follows:
(2.3.1) dividing the determined n-th layer wireless repeater into areas again according to the positions of the determined n-th layer wireless repeater in a three-dimensional coordinate system and the design of floors and room units, searching two or three wireless repeaters at the extreme edge of each area, calculating a position center point according to the coordinate information of the two or three wireless repeaters at the extreme edge, setting a spherical monitoring area with the radius of An-1 by taking the position center point as a center of a circle and according to a relay signal attenuation vector model, and installing the n-1-th layer wireless repeater in the spherical monitoring area with the radius of An-1 by ensuring that the furthest distance point of each wireless repeater from the spherical monitoring area does not exceed the communication distance of the wireless repeater;
(2.3.2) repeating the step (2.3.1), and when the distance between at least one wireless repeater in a layer of wireless repeaters and the position center point of the layer of wireless repeaters exceeds the communication distance of the wireless repeaters, connecting the coordinate information connecting points of the layer of wireless repeaters into a line to form a main relay chain, wherein the tail end of the main relay chain is communicated with a fire control host; and selecting whether to supplement the wireless repeater between two layers of wireless repeaters exceeding the communication distance of the wireless repeater according to the relay signal attenuation vector model on the relay main chain.
4. A method of installing a wireless repeater for fire detection type equipment as claimed in claim 1 or 3, wherein: the relay signal attenuation vector model specifically comprises the following components: pl(s) =Pl (s 0) +10αlg (s/s 0) +β+γ
Where Pl(s) is the energy path loss of the relayed signal over a distance s, s is the propagation distance of the relayed signal in the indoor space, s0 is the reference distance, α is the indoor relayed signal channel attenuation index, β is the transmission loss factor, and γ is the environmental loss factor.
5. The method for installing a wireless repeater for fire detection equipment according to claim 4, wherein:
the beta=β1n1+β2n2+β3n3+ … …
Where β1, β2, β3 … … are the penetration loss factors of the different media, respectively, n1, n2, n3 are the number of corresponding media, respectively, the penetration loss factors including but not limited to floor slab, elevator, glass.
6. The method for installing a wireless repeater for fire detection equipment according to claim 4, wherein: and the radius of the set spherical monitoring area is more than or equal to s.
7. The method for installing a wireless repeater for fire detection equipment according to claim 1, wherein: and under the same time reference, synchronizing the relay time of all the wireless relays by adopting a mode of timing synchronization time of the fire control host.
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