Integrated indoor distribution antenna and intelligent monitoring method thereof
By integrating signal monitoring equipment inside the ceiling antenna, employing frequency-selective shielding and electromagnetic isolation technology, and combining adaptive digital signal processing and low-power communication modules, the installation difficulties and interference problems of traditional antenna monitoring modules are solved, achieving efficient signal monitoring and long battery life, and improving troubleshooting efficiency and user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-05
- Publication Date
- 2026-03-13
AI Technical Summary
Traditional building indoor distribution systems have complex antenna nodes, making it difficult to install monitoring modules, resulting in high power consumption, difficulty in fault detection and location, and mutual interference between independent monitoring equipment and ceiling antennas. This makes it impossible to achieve integrated design, affecting the efficiency of fault diagnosis and the accuracy of signal monitoring.
The signal monitoring equipment is integrated into the ceiling antenna, which uses a frequency-selective shielding layer and electromagnetic isolation technology. Combined with adaptive digital signal processing and low-power communication modules, it achieves interference-free coexistence and enables quick battery replacement through a drawer-type battery compartment design.
It resolves installation conflicts and signal interference issues, improves the accuracy of monitoring data and battery life, simplifies the maintenance process, and enhances the practicality of the equipment and user experience.
Smart Images
Figure CN121663148A_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of mobile communication equipment technology, and in particular relates to an integrated indoor distributed antenna and its intelligent monitoring method. Background Technology
[0002] Traditional building indoor distributed antenna systems have numerous antenna nodes and complex distribution networks. Most of them are hidden installations above the indoor ceiling. Existing monitoring modules are complex to install, consume a lot of power, and are inconvenient to maintain and replace batteries. For a long time, there have been problems with difficulty in fault detection, fault location, and fault monitoring, resulting in an awkward situation where they are invisible, unmanageable, and uncontrollable, which greatly affects the efficiency of fault diagnosis.
[0003] Traditional ceiling-mounted antennas only serve as signal transceivers and have no monitoring capabilities. They cannot detect changes in signal quality within their coverage area and require external equipment for testing.
[0004] The disadvantages of independent monitoring equipment include: installation conflicts: it requires additional indoor space and cannot coexist with the optimal monitoring position of the ceiling antenna; signal interference: when deployed close to the ceiling antenna, the signals on the same frequency interfere with each other, causing the monitoring data to be distorted; poor coordination: there is no linkage mechanism with the ceiling antenna, and the monitoring strategy cannot be dynamically adjusted based on the antenna's working status.
[0005] Currently, there is no truly integrated design in the industry. Some solutions simply attach simple sensors to the outside of the antenna, which has problems such as narrow monitoring frequency band, weak anti-interference ability, and short battery life, and has not yet become a practical product. Summary of the Invention
[0006] To solve the above-mentioned technical problems, this application provides the following technical solution: This application discloses an integrated indoor distributed antenna and its intelligent monitoring method, comprising a ceiling-mounted antenna housing, a ceiling-mounted antenna base plate, a ceiling-mounted antenna mounting knob, a ceiling-mounted antenna cable connector, a ceiling-mounted antenna body, a quick-change battery compartment, a battery compartment cover, a long-life power supply module, and a 4 / 5G indoor distributed signal monitoring module. The integrated design cleverly integrates the signal monitoring equipment inside the ceiling-mounted antenna, requiring optimized structural design. Dedicated installation space is provided for the monitoring equipment without affecting the antenna's signal radiation performance. Reasonable isolation is required between the monitoring equipment and the antenna's radio frequency components to avoid mutual interference. Simultaneously, optimized circuit layout and structural design ensure the compactness and stability of the equipment, enabling it to adapt to the installation and usage requirements of ceiling-mounted antennas in indoor environments. The ceiling-mounted antenna housing has an electromagnetically isolated cavity inside, in which the integrated signal monitoring module, low-power communication module, intelligent control module, and long-term power supply module are integrated. A frequency-selective shielding layer is provided between the integrated signal monitoring module and the radiator of the ceiling-mounted antenna body, and the communication and monitoring functions can coexist without interference through co-frequency signal isolation technology. The integrated signal monitoring module includes a wideband radio frequency front-end and an adaptive digital signal processor. The wideband radio frequency front-end covers the frequency band from 700MHz to 5GHz. The adaptive digital signal processor extracts parameters such as signal strength, reference signal received power, and signal-to-interference-plus-noise ratio in real time through a dynamic gain adjustment algorithm, and has the ability to automatically identify the frequency band. The intelligent control module is connected to the integrated signal monitoring module, the low-power communication module, and the long-term power supply module via an anti-interference bus. It is used to adaptively adjust the sampling period based on the characteristics of the monitoring data and control the low-power communication module to upload data according to priority. The battery compartment adopts a drawer-type design, making the battery replacement process simple and quick. Inside the battery compartment, a reliable electrical connection interface is set to ensure a stable electrical connection between the battery and the equipment, enabling tool-free and efficient battery replacement.
[0007] Furthermore, the frequency-selective shielding layer is composed of a signal coupling attenuation controller, which attenuates the signal in the 4G / 5G operating frequency band by ≥30dB and the signal attenuation in other frequency bands by ≤3dB. This avoids co-channel interference between the radiator and the monitoring module without affecting the normal communication performance of the antenna; the signal coverage index is not lower than the requirements of traditional indoor distributed antennas.
[0008] Furthermore, the dynamic gain adjustment algorithm of the adaptive digital signal processor includes: automatically enabling low-noise amplification mode when the detected signal strength is ≤-110dBm; and automatically switching to attenuation mode when the signal strength is ≥-70dBm, ensuring that -110dBm≤4G RSRP≤-44dBm and -105dBm≤5G RSRP≤-31dBm.
[0009] Furthermore, the quick-swap battery compartment includes: The drawer-type compartment has a mechanical limiter on the surface to prevent accidental insertion. The built-in elastic positioning structure ensures that the mechanical tolerance of the battery pack after installation is ≤0.1mm; The reusable quick-connect electrode interface uses gold-plated contacts, has a plug-in / plug-out life of ≥500 cycles, and a contact resistance of ≤10mΩ.
[0010] Furthermore, the multi-level power consumption regulation mechanism of the intelligent power management unit includes: Monitoring sleep mode: Only the timer wake-up circuit is kept running, with extremely low power consumption, in the 10μA range; Standard monitoring mode: Signal sampling period is set at the hour level, average power consumption is in the 100μA range; High-speed monitoring mode: The signal sampling period can be set at the minute level, triggered by platform commands, with higher power consumption, at the 1mA level.
[0011] This application has the following beneficial effects: 1. This application integrates the signal monitoring function into the ceiling antenna, realizing a co-frequency design for communication and monitoring, effectively solving the installation conflicts and signal interference problems of traditional independent monitoring equipment; by adopting a frequency-selective shielding layer and electromagnetic compatibility optimized layout, it ensures interference-free coexistence between the monitoring module and the antenna radiator, while supporting the acquisition of signal parameters in the full frequency band from 700MHz to 5GHz, improving the accuracy of monitoring data, and avoiding the disadvantages of space occupation and poor coordination caused by the deployment of external equipment.
[0012] 2. This application uses an adaptive sampling algorithm and multi-level power consumption adjustment to dynamically respond to changes in signal quality, controlling the average power consumption to below 500μA. Combined with a lithium-ion battery pack, it achieves a battery life of more than 5 years. This design solves the problems of high power consumption and frequent battery maintenance in traditional monitoring equipment, reducing maintenance costs and energy consumption, while ensuring that critical data is not lost. It is suitable for indoor mobile communication scenarios with high battery life requirements, improving the practicality of the device.
[0013] 3. This application adopts a tool-free quick-change battery compartment design, which enables rapid battery replacement through a drawer-type structure and flexible electrode contacts, reducing maintenance time to minutes. The battery compartment is equipped with anti-misinsertion markings and stable electrical connections, with a plug-in / plug-out life of over 500 cycles and low contact resistance, ensuring continuous power supply and convenient maintenance, thereby improving the efficiency of on-site operation and maintenance and the user experience.
[0014] Of course, any product implementing this application does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the system framework of an integrated indoor distributed antenna and its intelligent monitoring method according to this application; The figure is a flowchart illustrating an integrated indoor distributed antenna and its intelligent monitoring method according to this application; Figure 2This is a schematic diagram of the battery compartment structure of this application; Figure 3 This is a layout diagram of the modular receiving cavity in this application; Figure 4 This is a schematic diagram of the frequency-selective shielding layer structure of this application; Figure 5 This is a schematic diagram of the overall shape of the single-polarized antenna of this application; Figure 6 This is a schematic diagram of the interior of the battery compartment of the single-polarized antenna in this application; Figure 7 This is a schematic diagram of the internal structure of the single-polarized antenna in this application; Figure 8 This is a schematic diagram of the single-polarization quick-swap battery compartment of this application; Figure 9 A schematic diagram illustrating the specific functions of the single / dual polarization indoor signal monitoring module in this application; Figure 10 This is a bottom-view structural diagram of the overall shape of the dual-polarized antenna of this application; Figure 11 This is a top view of the overall shape of the dual-polarized antenna of this application. Figure 12 This is a schematic diagram of the internal structure of the dual-polarized antenna in this application; Figure 13 This is a schematic diagram of the antenna connection in this application.
[0017] The attached diagram lists the components represented by each number as follows: 1. Ceiling antenna housing; 2. Ceiling antenna base plate; 3. Ceiling antenna mounting knob; 4. Ceiling antenna cable connector; 5. Ceiling antenna body; 6. Quick-change battery compartment; 7. Battery compartment cover; 8. Long-life power supply module; 9. Indoor distribution signal monitoring module; 91. Control button; 92. Indicator light; 93. Integrated signal monitoring module; 94. Low-power communication module; 95. Intelligent control module; 96. Wiring terminal; Detailed Implementation The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0018] Please see as follows Figure 1This application discloses an integrated indoor distributed antenna and its intelligent monitoring method, comprising a ceiling-mounted antenna housing, a ceiling-mounted antenna base plate, a ceiling-mounted antenna mounting knob, a ceiling-mounted antenna cable connector, a ceiling-mounted antenna body, a quick-change battery compartment, a battery compartment cover, a long-life power supply module, and a 4 / 5G indoor distributed signal monitoring module. The integrated design cleverly integrates the signal monitoring equipment inside the ceiling-mounted antenna, requiring optimized structural design. Dedicated installation space is provided for the monitoring equipment without affecting the antenna's signal radiation performance. Reasonable isolation is required between the monitoring equipment and the antenna's radio frequency components to avoid mutual interference. Simultaneously, optimized circuit layout and structural design ensure the compactness and stability of the equipment, enabling it to adapt to the installation and usage requirements of ceiling-mounted antennas in indoor environments. The ceiling-mounted antenna housing has an electromagnetically isolated cavity inside, such as... Figure 3 The integrated signal monitoring module, low-power communication module, intelligent control module and long-term power supply module are integrated in the cavity, and a frequency selective shielding layer is provided between the integrated signal monitoring module and the radiator of the ceiling antenna body. The communication and monitoring functions can coexist without interference through the same frequency signal isolation technology. The integrated signal monitoring module includes a wideband RF front-end and an adaptive digital signal processor. The wideband RF front-end covers the frequency band from 700MHz to 5GHz. The adaptive digital signal processor extracts parameters such as signal strength, reference signal received power, and signal-to-interference-plus-noise ratio in real time through a dynamic gain adjustment algorithm, and has the ability to automatically identify the frequency band. The intelligent control module is connected to the integrated signal monitoring module, the low-power communication module, and the long-term power supply module via an anti-interference bus. It is used to adaptively adjust the sampling period based on the characteristics of the monitoring data and control the low-power communication module to upload data according to priority. The battery compartment features a drawer-style design, making battery replacement simple and quick. Inside the battery compartment, reliable electrical connection interfaces are provided to ensure a stable electrical connection between the battery and the device, enabling tool-free and efficient battery replacement.
[0019] The frequency-selective shielding layer is composed of a signal coupling attenuation controller, such as... Figure 4 The signal attenuation for 4G / 5G operating frequency bands is ≥30dB, and the signal attenuation for other frequency bands is ≤3dB. This avoids co-channel interference between the radiator and the monitoring module without affecting the normal communication performance of the antenna. The signal coverage index is not lower than the requirements of traditional indoor distributed antennas.
[0020] The dynamic gain adjustment algorithm of the adaptive digital signal processor includes: automatically turning on the low noise amplification mode when the detected signal strength is ≤-110dBm; and automatically switching to the attenuation mode when the signal strength is ≥-70dBm, ensuring that -110dBm≤4G RSRP≤-44dBm and -105dBm≤5G RSRP≤-31dBm.
[0021] Quick-change battery compartment, such as Figure 2 ,include: The drawer-type compartment has a mechanical limiter on the surface to prevent accidental insertion. The built-in elastic positioning structure ensures that the mechanical tolerance of the battery pack after installation is ≤0.1mm; The reusable quick-connect electrode interface uses gold-plated contacts, has a plug-in / plug-out life of ≥500 cycles, and a contact resistance of ≤10mΩ.
[0022] The multi-level power consumption regulation mechanism of the intelligent power management unit includes: Monitoring sleep mode: Only the timer wake-up circuit is kept running, with extremely low power consumption, in the 10μA range; Standard monitoring mode: Signal sampling period is set at the hour level, average power consumption is in the 100μA range; High-speed monitoring mode: The signal sampling period can be set at the minute level, triggered by platform commands, with higher power consumption, at the 1mA level.
[0023] like Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 A schematic diagram of a new type of wireless network intelligent sensing terminal solution (single-polarization). like Figure 10 , Figure 11 , Figure 12 , Figure 13 This is a schematic diagram of a new type of wireless network intelligent sensing terminal solution (dual polarization).
[0024] One specific application of this embodiment is: An integrated indoor distributed antenna and its intelligent monitoring method are disclosed. The ceiling-mounted antenna housing adopts a circular structure with a diameter of 200mm, and the internal cavity is divided into three independent areas: The signal processing area is equipped with a low-power RF front-end chip and a DSP signal processing chip, with the RF front-end frequency covering the 700MHz-5GHz band. The control and communication area is equipped with an MCU chip and a communication module. The MCU is connected to the DSP chip via a serial interface, and the MCU is also connected to the communication module via a serial interface. The battery compartment adopts a drawer-type design, with electrode contact diameter of 3mm and gold plating thickness of 5μm. After 500 insertion and removal tests, the contact resistance is still ≤8mΩ and the insertion and removal force is ≤5N. When the device is working, the radio frequency front end receives signals and transmits them to the DSP chip. The DSP chip extracts network signal quality parameters such as RSRP and SINR and sends them to the MCU. The MCU analyzes and processes the parameters and packages them to upload them to the monitoring platform through the communication module. The upload cycle is 24 hours by default (which can be adjusted by platform commands).
[0025] In the description of this specification, the references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0026] The preferred embodiments disclosed above are merely illustrative of this application. These preferred embodiments do not exhaustively describe all details, nor do they limit the application to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this application, thereby enabling those skilled in the art to better understand and utilize this application. This application is limited only by the claims and their full scope and equivalents.
Claims
1. An integrated indoor distributed antenna and its intelligent monitoring method, characterized in that: The system includes a ceiling-mounted antenna housing, a ceiling-mounted antenna base plate, a ceiling-mounted antenna mounting knob, a ceiling-mounted antenna cable connector, the ceiling-mounted antenna body, a quick-change battery compartment, a battery compartment cover, a long-life power supply module, and a 4 / 5G indoor signal monitoring module. The integrated design cleverly integrates the signal monitoring equipment inside the ceiling-mounted antenna, requiring optimized structural design. Dedicated installation space must be allocated for the monitoring equipment without affecting the antenna's signal radiation performance. The radio frequency components of the monitoring equipment and the antenna must be properly isolated to avoid mutual interference. Simultaneously, optimized circuit layout and structural design ensure the compactness and stability of the equipment, enabling it to adapt to the installation and usage requirements of ceiling-mounted antennas in indoor environments. The ceiling-mounted antenna housing has an electromagnetically isolated cavity inside, which integrates an integrated signal monitoring module, a low-power communication module, an intelligent control module, and a long-term power supply module. A frequency-selective shielding layer is provided between the integrated signal monitoring module and the radiator of the ceiling-mounted antenna body. Interference-free coexistence of communication and monitoring functions is achieved through co-frequency signal isolation technology. The integrated signal monitoring module includes a wideband radio frequency front-end and an adaptive digital signal processor. The wideband radio frequency front-end covers the frequency band from 700MHz to 5GHz. The adaptive digital signal processor extracts parameters such as signal strength, reference signal received power, and signal-to-interference-plus-noise ratio in real time through a dynamic gain adjustment algorithm, and has the ability to automatically identify the frequency band. The intelligent control module is connected to the integrated signal monitoring module, the low-power communication module, and the long-term power supply module via an anti-interference bus. It is used to adaptively adjust the sampling period based on the characteristics of the monitoring data and control the low-power communication module to upload data according to priority. The battery compartment adopts a drawer-type design; electrical connection interfaces are set inside the battery compartment.
2. The integrated indoor distributed antenna and its intelligent monitoring method according to claim 1, characterized in that, The frequency-selective shielding layer is composed of a signal coupling attenuation controller, which attenuates the signal by ≥30dB for the 4G / 5G operating frequency band and ≤3dB for other frequency bands. This avoids co-channel interference between the radiator and the monitoring module without affecting the normal communication performance of the antenna. The signal coverage index is not lower than the requirements of traditional indoor distributed antennas.
3. The integrated indoor distributed antenna and its intelligent monitoring method according to claim 1, characterized in that, The dynamic gain adjustment algorithm of the adaptive digital signal processor includes: automatically activating low-noise amplification mode when the detected signal strength is ≤ a first signal threshold; and automatically switching to attenuation mode when the signal strength is ≥ a second signal threshold.
4. The integrated indoor distributed antenna and its intelligent monitoring method according to claim 1, characterized in that, The quick-swap battery compartment includes: The drawer-type compartment has a mechanical limiter on the surface to prevent accidental insertion. The built-in flexible positioning structure ensures that the mechanical tolerance of the battery pack after installation is less than or equal to the tolerance threshold. The reusable quick-connect electrode interface uses gold-plated contacts, with a insertion / removal life greater than or equal to the life threshold and a contact resistance less than or equal to the resistance threshold.
5. The integrated indoor distributed antenna and its intelligent monitoring method according to claim 1, characterized in that, The multi-level power consumption adjustment mechanism of the intelligent power management unit includes: Monitoring sleep mode: Only the timer wake-up circuit is kept running, with extremely low power consumption, in the 10μA range; Standard monitoring mode: Signal sampling period is set at the hour level, average power consumption is in the 100μA range; High-speed monitoring mode: The signal sampling period can be set at the minute level, triggered by platform commands, with higher power consumption, at the 1mA level.