Radio environment monitoring device for tower crane

Abstract

The utility model discloses a tower crane radio environment monitoring device which comprises a shell installed at the position consistent with the height of a tower crane communication antenna, and a multi-frequency-band signal receiving module, an active frequency spectrum scanning module, a signal filtering processing module and a data aggregation and output module which are arranged in the shell. The multi-frequency-band signal receiving module is used for receiving radio signals of a plurality of preset frequency bands used for normal communication of the tower crane; the active frequency spectrum scanning module is isolated from the multi-band signal receiving module in a physical structure and is used for actively scanning a radio frequency spectrum in a tower crane operation area; the signal filtering processing module is in signal connection with the multi-band signal receiving module and the active spectrum scanning module; the data aggregation and output module is in signal connection with the signal filtering processing module, and the communication interface is in signal connection with the data aggregation and output module. The radio environment monitoring device can sense the radio environment experienced by the tower crane communication antenna in the actual operation process in real time.

Description

TECHNICAL FIELD

[0001] The present application generally relates to the technical field of wireless communication of construction machinery. More particularly, the present application relates to a tower crane radio environment monitoring device. BACKGROUND

[0002] As an important engineering equipment in construction sites, the operation process of a tower crane usually relies on a wireless communication system to achieve control instruction transmission, operation state feedback and data interaction with a construction management system. To ensure communication coverage effect, the communication antenna of the tower crane is generally installed at the top of the tower crane or a high position of a tower crane standard section to avoid being blocked by the steel structure of the tower crane and to rotate as a whole with the tower crane. In high-rise building and large construction sites, there are often multiple construction machinery, intercom systems, wireless remote control devices and various Internet of Things terminals in the tower crane operation area. The frequency bands of different wireless devices overlap, and the signal superposition is obvious, resulting in a complex and frequently changing radio environment.

[0003] The existing tower crane communication system usually focuses on the establishment and maintenance of the communication link, and its perception of the radio environment mainly relies on passive feedback of communication quality changes, which is difficult to reflect the real radio environment status in the tower crane operation area in a timely and comprehensive manner. In addition, the existing radio environment monitoring devices are usually general or fixed devices, which are usually installed at a fixed position on the ground or a building, and the installation height and antenna posture are relatively constant, which is obviously different from the high-altitude position of the tower crane communication antenna and the working state changing with the rotation. Due to the inconsistent installation position, spatial height and antenna posture, the monitoring data obtained by the general radio environment monitoring device is difficult to reflect the electromagnetic environment conditions experienced by the tower crane communication antenna in the actual operation process, thereby limiting the reference value of the monitoring data for the tower crane communication management and operation guarantee.

[0004] Therefore, there is an urgent need to provide a tower crane radio environment monitoring device to realize real-time perception of the radio environment experienced by the tower crane communication antenna in the actual operation process and improve the reference value of the monitoring data for the tower crane communication management and operation guarantee. CONTENT OF THE INVENTION

[0005] In order to at least solve one or more of the above-mentioned technical problems, the present application provides a tower crane radio environment monitoring device.

[0006] The tower crane radio environment monitoring device provided by the present application comprises:

[0007] a shell configured to be installed at a position consistent with the height of the tower crane communication antenna;

[0008] a multi-band signal receiving module arranged inside the shell and configured to receive radio signals of a plurality of preset frequency bands used for normal communication of the tower crane;

[0009] an active spectrum scanning module arranged inside the shell and physically isolated from the multi-band signal receiving module, the active spectrum scanning module being configured to actively scan radio spectrum in the tower operation area;

[0010] a signal filtering processing module arranged inside the shell, the signal filtering processing module being signal connected with the multi-band signal receiving module and the active spectrum scanning module respectively;

[0011] a data aggregation and output module arranged inside the shell and signal connected with the signal filtering processing module; and

[0012] a communication interface arranged on a side wall of the shell and signal connected with the data aggregation and output module.

[0013] In some embodiments, the shell is configured to be fixedly installed at a high position of a tower standard section to obtain wireless radio environment information consistent with the height of a tower communication antenna.

[0014] In some embodiments, the shell is configured to be installed on a tower slewing mechanism so that the tower radio environment monitoring device changes its posture synchronously with the tower slewing operation.

[0015] In some embodiments, the multi-band signal receiving module, the active spectrum scanning module, the signal filtering processing module and the data aggregation and output module are sequentially arranged in the shell along a signal processing direction, and adjacent modules are connected through mutually independent signal channels.

[0016] In some embodiments, an electromagnetic shielding partition is arranged between the multi-band signal receiving module and the active spectrum scanning module inside the shell.

[0017] In some embodiments, the electromagnetic shielding partition is a metal plate body, and the metal plate body is electrically connected with a grounding portion of the shell.

[0018] In some embodiments, the communication interface is a wired communication interface for connecting a communication management system of the tower to transmit monitoring data from the data aggregation and output module to the communication management system.

[0019] In some embodiments, the multi-band signal receiving module is configured to receive wireless signals of at least three different types of standards among Wi-Fi 2.4GHz, Wi-Fi 5GHz, mobile communication 5G, LoRa 230MHz and LoRa 800MHz.

[0020] In some embodiments, the radio environment monitoring device further comprises an antenna support arranged outside the housing and having a first antenna and a second antenna mounted thereon separately; the first antenna is connected to the active spectrum scanning module through an independent first feed line; and the second antenna is connected to the multi-band signal receiving module through an independent second feed line.

[0021] In some embodiments, the signal filtering processing module comprises a plurality of parallel filtering units, each of which corresponds to a preset frequency band of the multi-band signal receiving module or a scanning frequency band of the active spectrum scanning module.

[0022] With the radio environment monitoring device as provided above, the embodiments of the present application construct a dual monitoring mechanism of passive monitoring and active scanning by integrating the multi-band signal receiving module and the active spectrum scanning module in the same housing and isolating them from each other in physical structure. The device can receive radio signals of a plurality of preset frequency bands actually used by the tower crane for communication in real time, while actively scanning the full-band radio spectrum of the tower crane operation area, so as to comprehensively and accurately identify specific frequency bands that are interfered or shielded. Finally, the processed and fused monitoring data is output through the communication interface, providing a direct and reliable decision basis for the active frequency band adjustment and switching of the tower crane communication management system, effectively overcoming the problems of single sensing capability and slow response in the prior art, and significantly improving the stability and anti-interference capability of the wireless communication link.

[0023] In addition, the radio environment monitoring device is installed on the top of the tower crane or at a standard section of the tower crane, so that the monitoring device is consistent with the tower crane communication antenna in terms of spatial height and installation posture, thereby being able to obtain radio environment information under actual working conditions of the tower crane communication link. The monitoring device operates independently without accessing the tower crane communication link or participating in communication control, thereby avoiding affecting the original communication system of the tower crane, and making the obtained radio environment monitoring data more consistent with the actual communication environment of the tower crane, so as to provide more targeted environmental reference for the tower crane communication management system. BRIEF DESCRIPTION OF DRAWINGS

[0024] The above and other objects, features and advantages of the example embodiments of the present application will be readily understood through reading the detailed description of the embodiments of the present application below, with reference to the accompanying drawings. In the drawings, several embodiments of the present application are shown by way of example and not limitation, and the same or corresponding reference numbers indicate the same or corresponding parts, in which:

[0025] Figure 1 An exemplary structural diagram of a tower crane radio environment monitoring device according to some embodiments of the present application is shown;

[0026] Figure 2An installation schematic diagram of a shell of an embodiment of the present application is shown.

[0027] Figure 3 An exemplary structural diagram of a tower crane radio environment monitoring device of another embodiment of the present application is shown.

[0028] Figure 4 An exemplary structural diagram of a tower crane radio environment monitoring device of another embodiment of the present application is shown.

[0029] Figure 5 An exemplary structural diagram of a tower crane radio environment monitoring device of another embodiment of the present application is shown.

[0030] Figure 6 An exemplary structural diagram of a tower crane radio environment monitoring device of another embodiment of the present application is shown.

[0031] Figure 7 An exemplary visual image interface of a comparative analysis result of monitoring data is shown.

[0032] Figure 8 An exemplary visual image interface of a transmission frequency adjustment result is shown.

[0033] In the figure: 101 - shell, 102 - multi-band signal receiving module, 103 - active spectrum scanning module, 104 - signal filtering processing module, 105 - data aggregation and output module, 106 - antenna support, 107 - communication interface, 108 - electromagnetic shielding partition, 109 - first antenna, and 110 - second antenna. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0035] It should be understood that the terms "include" and "contain" used in the specification and claims of the present application indicate the existence of the described features, whole, steps, operations, elements and / or components, but do not exclude the existence or addition of one or more other features, whole, steps, operations, elements, components and / or sets thereof.

[0036] It is also to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used in this specification and the claims, the singular forms "a," "an" and "the" include plural referents unless the context clearly dictates otherwise. It is further to be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items, and that the term "at least one of' as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0037] The tower radio environment monitoring device of the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0038] The tower radio environment monitoring device of the embodiments of the present application is specially adapted to the working environment of the tower crane at the construction site, and is fixed on the tower body as a whole through a reliable mounting structure to realize real-time and comprehensive monitoring of the radio environment of the working area.

[0039] Please refer to Figure 1 , the tower radio environment monitoring device 100 mainly includes a shell 101, a multi-band signal receiving module 102 integrated in the shell, an active spectrum scanning module 103, a signal filtering processing module 104, and a data aggregation and output module 105, and an antenna support 106 and a communication interface 107 arranged outside the shell. These components work cooperatively through optimized spatial layout and clear signal connection relationship, and together realize parallel reception and scanning of multi-band radio signals, processing and fusion of multi-channel signals, and standardized output of final monitoring data.

[0040] The shell 101 as the core bearing and protection structure of the device is designed to be stably installed at a position consistent in height with the communication antenna of the tower crane. Generally, consistent in height means that the installation height of the shell is within the same or adjacent tower standard section range as the installation height of the communication antenna of the tower crane. Such installation enables the radio environment perceived by the monitoring device to truly and directly reflect the actual conditions faced by the main communication link of the tower crane, providing a reliable data basis for subsequent communication quality evaluation and decision-making.

[0041] In an optional embodiment, as shown in Figure 2 , the shell 101 is configured to be fixedly installed at a high position of the tower standard section 200 to obtain radio environment information consistent in spatial height with the communication antenna of the tower crane. The high position generally refers to the installation area on the upper part of the standard section, such as a position within a certain range from the top of the standard section, so that its installation height is as close as possible to the height of the communication antenna located at the top of the tower crane or the upper standard section.

[0042] In another optional embodiment, the shell 101 is configured to be mounted on the slewing mechanism of the tower crane, so that the tower crane radio environment monitoring device changes its posture synchronously with the slewing operation of the tower crane. The lower part of the slewing mechanism is connected to the standard section through a slewing bearing. The standard section provides a stable mounting platform and a bearing foundation for the slewing mechanism.

[0043] In actual manufacture, the shell 101 can be made of high-strength aluminum alloy material through an integral molding process, and has a sealed cuboid structure as a whole. This design not only gives the shell good structural strength, which can effectively resist common vibrations and impacts on the construction site, but also realizes the lightweight of the device, avoiding significant additional load on the tower crane structure.

[0044] Considering that the construction site often has a lot of dust and a large diurnal temperature difference, in order to ensure that the internal electronic components of the device can operate stably for a long time under complex climate conditions, a self-adaptive temperature control, heat dissipation and dust prevention assembly can be integrated on one or more side walls of the shell 101. The assembly mainly includes a strip-shaped heat dissipation port opened on the side wall of the shell, a louvered baffle adapted to cover the outside of the heat dissipation port, a micro stepping motor for driving the opening and closing angle of the baffle blades, a temperature sensor arranged inside the shell to monitor the temperature of the key area, and a controller electrically connected with the temperature sensor and the micro stepping motor respectively. The controller automatically adjusts the action of the micro stepping motor according to the internal temperature data fed back by the temperature sensor in real time, so as to control the opening degree of the louvered baffle. When the internal temperature rises, the opening degree of the baffle increases to enhance heat dissipation; when the temperature decreases or the external dust is large, the opening degree of the baffle decreases or even closes, so as to realize dust prevention and heat preservation.

[0045] Further, to improve the sealing performance in the closed state, a silicon rubber elastic sealing gasket can be attached to the edge of each blade of the louvered baffle. When the baffle is completely closed, the sealing gasket can be tightly pressed with the frame of the heat dissipation port, thereby significantly improving the overall dust and water resistance level of the shell.

[0046] Please continue to refer to Figure 1The core functional modules of the device are arranged inside the shell 101. Among them, the multi-band signal receiving module 102 is used to receive the radio signals of multiple preset frequency bands used by the tower crane in the normal communication process, to realize passive monitoring of the existing communication link. The active spectrum scanning module 103 is used to actively and periodically scan the wide-band radio spectrum in the tower crane operation area to detect various interference signals existing in the environment. The module is physically isolated from the multi-band signal receiving module 102. The signal filtering processing module 104 is connected with the multi-band signal receiving module 102 and the active spectrum scanning module 103 through independent lines, respectively, and is responsible for conditioning the original signals from the two paths. The data aggregation and output module 105 is connected with the signal filtering processing module 104, and is responsible for collecting, analyzing and formatting the processed data.

[0047] Preferably, the multi-band signal receiving module 102, the active spectrum scanning module 103, the signal filtering processing module 104 and the data aggregation and output module 105 are arranged in sequence along the signal processing direction inside the shell 101, and the adjacent modules are connected through independent internal signal channels. This layout is conducive to forming a clear and orderly signal processing pipeline and reducing the mutual influence between different functional circuits.

[0048] In order to ensure the signal purity between key modules, especially to prevent the wide-band scanning signal generated by the active spectrum scanning module 103 from interfering with the multi-band signal receiving module 102 with high sensitivity, as shown in Figure 3 An electromagnetic shielding partition plate 108 can be arranged between the multi-band signal receiving module 102 and the active spectrum scanning module 103 inside the shell 101. The electromagnetic shielding partition plate 108 is a metal plate, such as a galvanized steel plate, and its four edges are electrically connected and grounded with the inner wall of the shell 101 through conductive gaskets. This partition plate forms an effective physical isolation barrier, which can significantly attenuate and block the electromagnetic coupling and signal crosstalk between the two modules, thereby ensuring the accuracy of the passive receiving path signal and the independence of the active scanning data.

[0049] In specific applications, the multi-band signal receiving module 102 can be configured to simultaneously receive and process wireless signals of multiple different standards to adapt to the complex communication needs of the construction site. For example, it can cover frequency bands including Wi-Fi 2.4GHz, Wi-Fi 5GHz, mobile communication 5G, LoRa 230MHz, and LoRa 800MHz, etc. The specific ranges of these frequency bands can be: the Wi-Fi 2.4GHz frequency band covers 2.4 to 2.4835GHz, the Wi-Fi 5GHz frequency band covers 5.15 to 5.85GHz, the mobile communication 5G covers the mainstream sub-frequency bands of 2.6GHz and 3.5GHz, the LoRa 230MHz frequency band covers 223 to 235MHz, and the LoRa 800MHz frequency band covers 800 to 868MHz. Multiple independent signal output ports can be provided on the multi-band signal receiving module 102, each corresponding to a signal of a different frequency band, ensuring that data of each frequency band can be independently and unconfusedly transmitted to the subsequent signal filtering processing module 104.

[0050] The scanning frequency range of the active spectrum scanning module 103 can be set to 80MHz to 6GHz, which is wide enough to cover most possible communication and interference frequency bands on the construction site. The module is connected to the subsequent circuit through an independent signal output interface, and is separated from the multi-band signal receiving module 102 in terms of physical structure and circuit connection, further eliminating the possibility of mutual interference from the source.

[0051] The signal filtering processing module 104 internally contains multiple parallel filtering units, each of which is optimized for a specific output signal of the upstream module.

[0052] As an example, as shown in Figure 4 , the signal filtering processing module 104 can be configured with six independent filtering units (such as the filtering unit 1 to the filtering unit 6 shown in Figure 4 ), of which the filtering unit 1 to the filtering unit 5 are five narrowband filtering units, with their center frequencies respectively aligned with the five communication frequency bands supported by the multi-band signal receiving module 102, for filtering out noise outside each communication channel; the other one, i.e., the filtering unit 6, is a wideband filtering unit, which is used to perform necessary band shaping and conditioning on the wideband scanning signal output by the active spectrum scanning module 103. Therefore, the signal filtering processing module 104 is connected to the multi-band signal receiving module 102 through five independent lines, and is connected to the active spectrum scanning module 103 through one independent line, and the six signals after targeted filtering processing are respectively transmitted to the data aggregation and output module 105.

[0053] The data aggregation and output module 105 serves as the data processing core of the device, receiving all signal data from the signal filtering processing module 104. This module first collects and digitizes each channel of data, and then performs data fusion and format standardization processing. For example, raw data of different sources and formats can be uniformly converted into structured JSON format data packets. Each data packet contains key fields such as signal frequency band type, real-time signal strength, calculated interference indicators, and time stamp. The interference indicators can include the signal-to-noise ratio in a specific frequency band or the signal power value exceeding the noise floor by a certain threshold. This standardization process greatly facilitates the network transmission, storage, and analysis and application of the backend communication management system of the data.

[0054] The communication interface 107 is provided on the side wall of the housing 101, which is preferably a stable and reliable wired communication interface, such as an industrial Ethernet interface or an RS485 bus interface. This interface is signal-connected to the data aggregation and output module 105, responsible for uploading the packaged standardized monitoring data to the communication management system of the tower crane or the construction site Internet of Things platform. After receiving these real-time, passive monitoring and active scanning information integrated environmental data, the communication management system can evaluate and make decisions on communication quality, such as automatically performing switching operations to the standby clean frequency band when identifying strong interference in the current main frequency band.

[0055] Please continue to refer to Figure 2 The antenna support 106 is fixedly installed outside the housing 101, usually at the top of the housing, for supporting the antenna, which is made of lightweight and strong aluminum alloy material. As an example, as shown in Figure 5 The first antenna 109 and the second antenna 110 are physically separated and installed on the antenna support 106. The first antenna 109 serves as a scanning antenna and is directly connected to the active spectrum scanning module 103 inside the housing 101 through an independent first feed line; the second antenna 110 serves as a communication signal receiving antenna and is directly connected to the multi-frequency signal receiving module 102 through an independent second feed line. The design of double-antenna independent feed lines ensures complete isolation of the signal receiving path and the scanning path from the radio frequency front end, which is the basis for ensuring the reliability of the entire device's dual-path monitoring mechanism.

[0056] Based on the tower crane radio environment monitoring device as described above in conjunction with Figures 1 to 5 The typical working process of the tower crane radio environment monitoring device is shown in Figure 6 and described as follows.

[0057] After the tower crane radio environment monitoring device is powered on, the multi-frequency signal receiving module 102 and the active spectrum scanning module 103 inside the device start working in parallel.

[0058] The multi-band signal receiving module 102 continuously receives the signals transmitted by the signal transmitting end through the five channels through the first antenna, and simultaneously monitors the Wi-Fi 2.4G, Wi-Fi 5G, mobile communication 5G, LoRa 230M and LoRa 800M five channels. After these signals are processed by the filter units corresponding to the frequency bands in the signal filtering processing module 104, they are sent to the data aggregation and output module 105. The data aggregation and output module 105 analyzes the instructions or data content carried by each channel signal in real time, calculates the signal strength and quality parameters, and forms passive monitoring data.

[0059] At the same time, the active spectrum scanning module 103 periodically scans the environment around the tower crane through the second antenna, and the scanning data is sent to the data aggregation and output module 105 after being conditioned by the wideband filter unit in the signal filtering processing module 104. The data aggregation and output module 105 performs spectrum analysis on the scanning data and identifies the frequency points with abnormal noise or energy surge in the environment, thereby determining which frequency bands may be interfered with, forming active monitoring data.

[0060] The data aggregation and output module 105 time-aligns and fuses the above two types of monitoring data, and uploads them to the communication management system of the tower crane in real time through the communication interface 107. The communication management system compares the received fusion data and makes decisions, and finally determines whether the tower crane executes the operation instruction. Generally, the tower crane executes the operation instruction from the signal transmitting end, which requires that the operation instruction transmitted through multiple independent channels is consistent and effective, and the communication reliability during the execution of the action is ensured by combining the radio environment assessment. The specific process can be embodied in the following typical scenarios:

[0061] In the first scenario, the passive monitoring data comparison result shows that at least three channels of the five channels transmit operation instructions with consistent content and good signal quality, and the active monitoring data detects that the frequency band has interference channels. At this time, the system can determine that the operation instruction with consistent content is valid. The communication management system can first instruct the signal transmitting end to adjust the transmission frequency of the channel with interference to avoid interference. After that, the communication management system can control the tower crane to execute the operation instruction with verified consistent content.

[0062] In the second scenario, the passive monitoring data comparison result shows that the operation instruction contents of at least three channels are inconsistent, and the active monitoring data detects that the channels with interference in the frequency band are exactly the channels with inconsistent contents. The communication management system infers that the communication anomaly is caused by the identified interference. At this time, the communication management system does not execute the operation instruction with inconsistent contents, but instructs the signal transmitting end to adaptively adjust the transmission frequency of the channels with interference, and requests to resend the operation instruction. When the passive monitoring data confirms that the operation instruction contents of the channels after resending are consistent, and the active monitoring data shows that the interference in the related frequency band has been reduced or avoided, the communication management system determines that the operation instruction is valid and controls the tower crane to execute.

[0063] In the third scenario, the passive monitoring data comparison result shows that the operation instruction contents of multiple channels are inconsistent, but the active monitoring data only detects that the frequency band of part of the multiple channels has interference. For example, the operation instruction contents of three channels are detected to be inconsistent by the passive monitoring data, and the active monitoring data only detects that the signals of two of the three channels have interference. In this case, the communication management system preliminarily judges that there is a conflict in the monitoring data, and temporarily suspends the instruction execution. Next, the communication management system can instruct the signal transmitting end to resend the control instruction. On this basis, the communication management system compares the new and old monitoring data: if the contents tend to be consistent after resending, it is processed and executed in the aforementioned manner; if the inconsistency still exists, the communication management system further compares the frequencies of the channels with the original preset frequencies. By comparing, it is found that the actual working frequency of a channel has deviated, and it is judged that the inconsistent signal contents of the channel are caused by the frequency deviation, and then the signal transmitting end is instructed to jointly adjust the channel with frequency deviation and the interfered channel identified by active scanning, and then request to resend the operation instruction again. This process continues until the passive monitoring confirms that the operation instruction contents of at least three channels are consistent, and the communication management system finally controls the tower crane to execute the instruction.

[0064] Through the above process, the tower crane radio environment monitoring device not only realizes real-time perception of the radio environment and accurate positioning of the interference, supports the communication management system to complete dynamic frequency band or channel switching, and more importantly, it establishes a decision-making mechanism based on multi-path verification and environment perception for the tower crane to safely and reliably execute operation instructions, thereby improving the reliability of wireless control while ensuring the safety of tower crane operation.

[0065] In addition, in actual application scenarios, the communication management system can also output the comparison and analysis results of the monitoring data and the transmission frequency adjustment process and results in the form of a visual image interface in real time, such as Figure 7 and Figure 8The management personnel can intuitively and timely master the overall working state of the tower crane and the signal transmitting end associated therewith and the change of the communication environment.

[0066] Specifically, by observing the visual interface as shown in Figure 7 The management personnel can directly know the radio communication environment in which the tower crane is currently located. For example, the interface can clearly show that the LORA-230M is subjected to strong interference waves or shielding waves, while the Wi-Fi 2.4G, Wi-Fi 5G, mobile communication 5G and LoRa 800M are stable in signal. At the same time, the interface can also synchronously show that the signal transmitting end is detecting and selecting a suitable wave band and is being tuned to a suitable wave band.

[0067] Further, by observing the visual interface as shown in Figure 8 The management personnel can explicitly know the specific frequency adjustment operation that has been completed and its effect. For example, the interface can clearly show that the LORA-230M has been tuned to LORA-270M. This visual information presentation mode provides intuitive state monitoring and decision support for the management personnel.

[0068] Although a plurality of embodiments of the present application have been shown and described herein, it will be apparent to those skilled in the art that such embodiments are provided only in an exemplary manner. Those skilled in the art can think of many changes, alterations and alternative ways without departing from the idea and spirit of the present application. It should be understood that various alternatives to the embodiments of the present application described herein can be employed in practicing the present application. The appended claims are intended to define the scope of protection of the present application and thus cover equivalent or alternative solutions within the scope of the claims.

Claims

1. A tower crane radio environment monitoring device, characterized in that, include: Housing, the housing being configured to be mounted at the same height as the tower crane's communication antenna; A multi-band signal receiving module is installed inside the housing and is used to receive radio signals from multiple preset frequency bands used for normal communication of the tower crane; An active spectrum scanning module is located inside the housing and is physically isolated from the multi-band signal receiving module. The active spectrum scanning module is used to actively scan the radio spectrum within the tower crane's operating area. A signal filtering and processing module is disposed inside the housing, and the signal filtering and processing module is connected to the multi-band signal receiving module and the active spectrum scanning module respectively. The data aggregation and output module is located inside the housing and is connected to the signal filtering and processing module. as well as A communication interface is located on the side wall of the housing and is connected to the data aggregation and output module via signal.

2. The tower crane radio environment monitoring apparatus according to claim 1, characterized in that, The housing is configured to be fixedly installed at a high position on the standard section of the tower crane to obtain radio environment information at the same height as the tower crane's communication antenna.

3. The tower crane radio environment monitoring device of claim 1, wherein, The housing is configured to be installed on the tower crane's slewing mechanism, so that the tower crane's radio environmental monitoring device changes its posture synchronously with the tower crane's slewing operation.

4. The tower crane radio environment monitoring device of claim 1, wherein, The multi-band signal receiving module, the active spectrum scanning module, the signal filtering module, and the data aggregation and output module are arranged sequentially along the signal processing direction inside the housing, and adjacent modules are connected through independent signal channels.

5. The tower crane radio environment monitoring apparatus of claim 4, wherein, Inside the housing, an electromagnetic shielding partition is provided between the multi-band signal receiving module and the active spectrum scanning module.

6. The tower crane radio environment monitoring apparatus of claim 5, wherein, The electromagnetic shielding plate is a metal plate, and the metal plate is electrically connected to the grounding part of the housing.

7. The tower crane radio environment monitoring device of claim 1, wherein, The communication interface is a wired communication interface, used to connect to the tower crane's communication management system and transmit monitoring data from the data aggregation and output module to the communication management system.

8. The tower crane radio environment monitoring device of claim 1, wherein, The multi-band signal receiving module is configured to receive at least three different wireless signals selected from Wi-Fi 2.4GHz, Wi-Fi 5GHz, 5G mobile communication, LoRa 230MHz, and LoRa 800MHz.

9. The tower crane radio environment monitoring device of claim 1, wherein, It also includes an antenna bracket; the antenna bracket is disposed outside the housing, and a first antenna and a second antenna that are separate from each other are mounted on it; the first antenna is connected to the active spectrum scanning module through an independent first feed line; the second antenna is connected to the multi-band signal receiving module through an independent second feed line.

10. The tower crane radio environment monitoring device of claim 1, wherein, The signal filtering processing module includes parallel multi-channel filtering units, each of which corresponds to a preset frequency band of the multi-band signal receiving module or a scanning frequency band of the active spectrum scanning module.

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