Wireless communication method, device, electronic device and storage medium for tunnel construction

Abstract

The present application provides a wireless communication method, device, electronic device and storage medium for tunnel construction, which relate to the field of engineering technology. The method comprises: in the process of tunnel construction equipment construction, real-time collection of tunnel environment data during the construction process and wireless signal data connected to the wireless AP at the tunnel entrance; determining the wireless signal attenuation area during the construction process based on the wireless signal data; determining the installation position of the wireless relay and the coverage direction of the wireless relay's transmission signal based on the wireless signal attenuation area and the tunnel environment data; determining the wireless relay installation strategy during the construction process based on the installation position and coverage direction of the wireless relay to provide wireless communication for the tunnel construction equipment, thereby solving the technical problem that when the wireless communication technology is applied to the shield tunnel construction site, the wireless communication signal may be attenuated due to the change of the tunnel environment data during the collection and construction process, resulting in poor wireless communication signal and unsatisfactory communication effect.

Description

Technical Field

[0001] The present invention relates to the field of engineering technology, and in particular to a wireless communication method, device, electronic device and storage medium for tunnel construction. Background Art

[0002] Compared with fixed workplaces, shield tunnel construction sites have the characteristics of high mobility, harsh environment, complex management objects, many types of engineering machinery, small construction sites, and no communication signals. Traditional signal transmission relies on wired transmission media such as network cables, optical fibers, and coaxial cables to connect terminal equipment with superior management equipment. When used, it has the disadvantages of large wiring volume, poor protection, a wide variety of signals, inconvenient installation and removal, and inability to connect to mobile engineering machinery.

[0003] In order to monitor shield tunnel construction equipment in real time and coordinate operations between various construction equipment, mobile construction machinery including shield machines and rail vehicles need to be connected to the ground monitoring center and other equipment using WLAN networking. Due to the high speed of construction equipment and the complex underground construction environment, the communication methods and communication interfaces used by various equipment are different, so the networking equipment needs to have high waterproof and dustproof levels, good stability, large bandwidth, strong anti-interference ability, long transmission distance, and low latency.

[0004] In some tunnel construction processes, in order to ensure that the construction equipment can communicate normally, the implemented construction data is transmitted to the host computer. However, the environment in tunnel construction is often more complex, and there are many factors that affect the signal quality of wireless signals. For example, the turns of the tunnel and the turns of different diameters have a great influence on the propagation of wireless signals. For example, some structures in the tunnel that can shield the signal also have a great influence on the transmission of wireless signals. In some existing technologies, the layout of wireless communication equipment is often to arrange a wireless relay at a preset distance.

[0005] In the actual construction process, the construction equipment needs to be able to automatically switch between different wireless relays or between wireless relays and wireless APs at the tunnel entrance. The principle of automatic switching is often based on the signal strength, automatically switching from a weak signal to a strong signal wireless network. In order to keep the wireless signal strength of the construction equipment in any area at a certain level, the wireless relays may be arranged more densely. However, the prior art often only considers the arrangement of wireless relays. Due to the tunnel environment and the arrangement of wireless relays, there may be areas covered by multiple wireless signals at the same time. This may cause the wireless signal in this area to switch back and forth between different wireless relays, causing unstable network connection during the wireless network switching process.

[0006] Therefore, how to arrange wireless relays to ensure that construction equipment has good communication quality while avoiding frequent switching of wireless networks has become a technical problem that needs to be solved urgently. Summary of the invention

[0007] In order to solve the technical problem of how to arrange wireless relays in the prior art described in the above background technology to ensure that construction equipment has good communication quality while avoiding frequent switching of wireless networks, the present application proposes a wireless communication method, device, electronic device and storage medium for tunnel construction.

[0008] An embodiment of the present application provides a wireless communication method for tunnel construction, which is applicable to a monitoring system of tunnel construction equipment, wherein at least one of a tunnel environment data acquisition device, a wireless communication device, and a data processing device is arranged on the tunnel construction equipment; during the construction process of the tunnel construction equipment, tunnel environment data and wireless signal data during the construction process are collected in real time, wherein the wireless signal data is a wireless signal emitted by a wireless AP at a tunnel entrance, or a wireless signal emitted by a wireless relay that is in communication with the wireless AP at the tunnel entrance; based on the wireless signal data, a wireless signal attenuation area during the construction process is determined; based on the wireless signal attenuation area, the tunnel environment data, and preset tunnel construction data, an installation position of the wireless relay and a coverage direction of the transmitted signal of the wireless relay are determined; based on the installation position of the wireless relay and the coverage direction, a wireless relay installation strategy during the construction process is determined to provide wireless communication for the tunnel construction equipment.

[0009] Optionally, determining the wireless signal attenuation area during the construction process based on the wireless signal data includes: determining the real-time strength of the wireless signal based on the wireless signal data; judging whether the real-time strength of the wireless signal is less than a preset strength, the preset strength being the strength at which the change in signal strength after the wireless communication device switches to the next wireless signal transmission source is less than a preset value; when the wireless signal strength is less than the preset strength, determining that the current area is a wireless signal attenuation area.

[0010] Optionally, determining the installation position of the wireless relay and the coverage direction of the transmission signal of the wireless relay based on the wireless signal attenuation area, the tunnel environment data and the preset tunnel construction data includes: determining the wireless relay installation area based on the signal attenuation area; determining the bending radius of the tunnel axis bending area of ​​the wireless relay installation area based on the tunnel environment data and the preset tunnel construction data; obtaining the coverage angle of the wireless relay to be installed; determining the installation position and installation angle of the wireless relay based on the bending radius and the coverage angle; and determining the coverage direction based on the installation position and the installation angle.

[0011] Optionally, determining the installation position and installation angle of the wireless relay based on the bending radius and the coverage angle includes: determining the coverage range of the wireless signal in the bending area based on the bending radius and the installation position of the current wireless relay or wireless AP and the coverage angle of the current wireless signal; within the coverage range, determining the installation position and installation angle of the next wireless relay, the installation position being located in a tunnel area behind the bending apex of the bending area, and the installation angle being away from the bending area.

[0012] Optionally, before determining the wireless signal attenuation area during the construction process based on the wireless signal data, the method includes: judging whether the bending radius is less than a preset radius; when the bending radius is less than the preset radius, taking the tunnel area after the bending vertex as the signal attenuation area to be screened; in the attenuation area to be screened, determining the wireless signal attenuation area during the construction process based on the wireless signal data.

[0013] Optionally, the tunnel construction equipment includes a tunneling device and a round-trip device, wherein the round-trip device is used to travel back and forth between the tunnel entrance and the tunneling equipment, and the round-trip device detects the wireless communication status in real time during the round-trip process, and draws a wireless signal strength heat map based on the wireless communication status; determines the influence factor of the tunnel environment data in the constructed tunnel on the wireless signal based on the wireless signal strength heat map and the tunnel environment data; and adjusts the installation position and installation angle of the wireless relay in subsequent tunnel construction based on the influence factor.

[0014] Optionally, the monitoring system also includes: a first video monitoring device, installed on the construction equipment; a second video monitoring device, installed in the tunnel; the first video monitoring device and the second video monitoring device communicate with the wireless communication device through the wireless signal, and the wireless communication method also includes: determining the installation position and installation angle of the second video monitoring device based on the bending radius and the coverage angle, wherein the installation position and installation angle of the second video monitoring device are opposite to the installation position and installation angle of the wireless relay; when the construction equipment switches to the next wireless relay, the second video monitoring device is turned on to obtain the video data in the tunnel, and the video data of the first video monitoring device and the second video monitoring device are spliced ​​to obtain the front and back monitoring video data of the construction equipment.

[0015] According to another aspect of the present application, a wireless communication device for tunnel construction is provided, and the communication device includes: a data acquisition module, which is used to collect tunnel environment data during the construction process and wireless signal data connected to the wireless AP at the tunnel entrance in real time during the construction process of the tunnel construction equipment; an area determination module, which is used to determine the wireless signal attenuation area during the construction process based on the wireless signal data; a direction determination module, which is used to determine the installation position of the wireless relay and the coverage direction of the transmission signal of the wireless relay based on the wireless signal attenuation area and the tunnel environment data; a communication providing module, which is used to determine the wireless relay installation strategy during the construction process based on the installation position of the wireless relay and the coverage direction to provide wireless communication for the tunnel construction equipment.

[0016] According to another aspect of the present application, there is provided an electronic device, comprising a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other via the communication bus, and the memory is used to store a computer program; and the processor is used to execute the steps of the wireless communication method for tunnel construction as described in any one of the above items by running the computer program stored in the memory.

[0017] According to another aspect of the present application, a computer-readable storage medium is provided, in which a computer program is stored, wherein the computer program is configured to execute the steps of the wireless communication method for tunnel construction as described in any one of the above items when running.

[0018] The present application provides a wireless communication method, device, electronic device and storage medium for tunnel construction. The method includes: during the construction process of tunnel construction equipment, real-time collection of tunnel environment data during the construction process and wireless signal data connected to a wireless AP at a tunnel entrance; determining a wireless signal attenuation area during the construction process based on the wireless signal data; determining an installation position of a wireless relay and a coverage direction of a transmission signal of the wireless relay based on the wireless signal attenuation area, tunnel environment data and preset tunnel construction data; determining a wireless relay installation strategy during the construction process based on the installation position and coverage direction of the wireless relay to provide wireless communication for tunnel construction equipment, solving the technical problem that when wireless communication technology is applied to a shield tunnel construction site, the wireless communication signal may be attenuated due to changes in tunnel environment data during the collection and construction process, resulting in poor wireless communication signals and unsatisfactory communication effects. At the same time, the installation position and signal coverage direction of the next wireless relay determined based on the environment data, preset tunnel construction data and the wireless signal attenuation area can ensure that after the construction equipment enters the coverage range of the next wireless relay, the signal strength of the previous wireless relay can be kept strong as the construction process proceeds until switching to the next wireless relay or the wireless AP at the tunnel entrance. This can ensure that construction equipment avoids frequent switching of wireless networks while maintaining good traffic quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0020] Figure 1 A schematic diagram of a hardware environment of a wireless communication method for tunnel construction in one embodiment of the present application;

[0021] Figure 2 A schematic diagram of a flow chart of a wireless communication method for tunnel construction in one embodiment of the present application;

[0022] Figure 3 This is a structural block diagram of a wireless communication device for tunnel construction in an embodiment of the present application;

[0023] Figure 4 This is a structural block diagram of an optional electronic device in an embodiment of the present application. DETAILED DESCRIPTION

[0024] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific embodiments of the present invention are now described with reference to the accompanying drawings. In the drawings, the same reference numerals represent components with the same structure or similar structures but the same functions.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0026] The embodiment of the present application provides a wireless communication method for tunnel construction, which is applicable to a monitoring system of tunnel construction equipment, wherein the tunnel construction equipment is provided with at least one of a tunnel environment data acquisition device, a wireless communication device, and a data processing device. Exemplarily, the tunnel construction equipment is a shield machine, and the wireless communication device provided on the shield machine is a client Client, and the wireless communication device is a wireless access point AP (Access Point) with a directional antenna, to illustrate the technical solution of the present application.

[0027] In the present application, the tunnel environment data acquisition device may be a visual acquisition device, or a device that can detect the environment contour, such as a laser radar or a millimeter wave radar. In addition, the data processing device may be a data processing device with image processing capabilities, such as a processor such as an MCU, a GPU, or a CPU.

[0028] like Figure 2 As shown, the wireless communication method for tunnel construction includes:

[0029] S202. During the construction process of the tunnel construction equipment, tunnel environment data and wireless signal data during the construction process are collected in real time. The wireless signal data is a wireless signal emitted by a wireless AP at the tunnel entrance, or a wireless signal emitted by a wireless relay that is connected to the wireless AP at the tunnel entrance.

[0030] As mentioned above, when wireless communication technology is applied to shield tunnel construction sites, there may be technical problems such as poor wireless communication signals and unsatisfactory communication effects due to attenuation of wireless communication signals due to changes in tunnel environment data during the collection and construction process. In order to solve the above technical problems, the tunnel environment data during the construction process and the wireless signal data connected to the wireless AP at the tunnel entrance are collected in real time, so that the data can be subsequently analyzed based on the wireless signal data of the tunnel environment area and the wireless signal data of the wireless AP at the tunnel entrance.

[0031] Exemplarily, the tunnel environment data can be obtained through a survey before tunnel construction, or it can be obtained based on real-time construction data during the construction process; the wireless signal data of the wireless AP connected to the tunnel entrance can be obtained by testing with wireless signal data testing equipment after the wireless AP is installed, or it can be obtained based on the communication between other devices and the wireless AP during the construction process, without specific restrictions here.

[0032] S204. Determine the wireless signal attenuation area during the construction process based on the wireless signal data;

[0033] The wireless signal attenuation area may be an area where, when the device is located in the attenuation area, the wireless communication signal is attenuated due to changes in tunnel environment data, resulting in technical problems such as poor wireless communication signal and unsatisfactory communication effect; exemplarily, when it is identified that the problem of poor wireless communication signal caused by wireless communication signal attenuation data occurs, it can be determined that the current area is a wireless signal attenuation area.

[0034] S206. Determine the installation position of the wireless relay and the coverage direction of the transmission signal of the wireless relay based on the wireless signal attenuation area, the tunnel environment data and the preset tunnel construction data.

[0035] The inventors have found that wireless signal attenuation is generally caused by the appearance of tunnel environmental data, for example, a change from a straight line to a curve with a larger change amplitude (i.e., the tunnel changes from a straight road to a zone with a certain degree of curvature); therefore, after identifying the wireless signal attenuation area, the installation position of the wireless relay and the coverage direction of the transmission signal of the wireless relay are determined based on the wireless signal attenuation area and the tunnel environmental data.

[0036] In this embodiment, the preset tunnel construction data may be tunnel design data, which may indicate where the tunnel begins to bend and what the radius of the bend is. Therefore, the preset tunnel construction data may be used as data for predicting the future direction of the tunnel. The tunnel environment data may be the actual tunnel construction environment during the actual construction process, for example, the actual bending direction, the actual bending radius, the angle of the tunnel sidewall, whether there is a depression or protrusion, and other actual environmental data that affects the installation angle and coverage direction of the wireless relay.

[0037] In this embodiment, when determining whether a wireless relay is installed in the signal attenuation area, as well as the installation angle, installation position and signal coverage direction, it is necessary to consider whether there will be factors that will weaken the wireless signal in the next installation wireless relay during the current construction process and future construction processes. For example, the current signal attenuation area may be the vertex of the curved area in the preset tunnel construction data. Therefore, the installation direction and coverage angle of the next wireless relay should be based on the future tunnel trend. In addition, the installation position should be determined based on the current tunnel environment data to ensure that there is no obstruction after installation, and after installation, the installation direction and coverage angle can be guaranteed to be facing the future tunnel trend.

[0038] In addition, if the signal attenuation area is a curved area, and the future construction direction is highly consistent with the direction of the previous wireless relay, after the next relay is installed, the signal strength of the next wireless relay in the current construction area may be high. As the construction progresses, after 10-50 meters of excavation, the two signals may have similar strengths, resulting in frequent switching. Therefore, during the construction process, it is always necessary to determine the installation direction of the next wireless relay based on the direction and coverage angle of the previous wireless relay, as well as the current environmental data and the future direction of the tunnel, to ensure that the strength of the next wireless relay in the future tunnel is always greater than the strength of the previous wireless signal. Therefore, it is necessary to ensure that the direction and angle of the next wireless relay are as close to the future construction direction as possible.

[0039] As an optional embodiment, in the present application, the wireless relay can be set as a wireless access point AP. Built-in 13dBi dual-polarized antenna, maximum transmission power 30dBm, maximum transmission distance of 5Km; antenna coverage angle is 45° horizontally and 30° vertically. The bridge AP end and the Client end are respectively at the highest point of the rear of the shield machine trolley and the same height as the tunnel entrance. When installing, adjust the orientation of the front panel to be opposite to ensure that the receiving device is within its signal coverage range. In most cases, the axis of the tunnel is non-straight, and there may be a situation where both direct waves and reflected waves cannot reach. Therefore, the wireless signal attenuation area can be determined. When the wireless signal in the attenuation area reaches the preset attenuation level, that is, the strength that cannot be switched back after switching other wireless signals, a wireless relay can be set in this area, and the orientation of the wireless relay should be in the direction of the attenuation of the previous wireless relay signal. When entering the new wireless relay coverage area, switch to the wireless network of the new wireless relay to ensure the stability of the network connection.

[0040] As an optional embodiment, the mobile construction machinery may be installed with a client terminal to implement wireless communication between the device and the wireless relay.

[0041] Exemplarily, the installation position may be the center of the tunnel, the side wall of the tunnel, the top of the tunnel or the bottom of the tunnel.

[0042] S208. Determine a wireless relay installation strategy during the construction process based on the installation position of the wireless relay and the coverage direction to provide wireless communication for tunnel construction equipment.

[0043] Through the above technical scheme, during the construction process of the tunnel construction equipment, the tunnel environment data during the construction process and the wireless signal data connected to the wireless AP at the tunnel entrance are collected in real time; the wireless signal attenuation area during the construction process is determined based on the wireless signal data; the installation position of the wireless relay and the coverage direction of the transmission signal of the wireless relay are determined based on the wireless signal attenuation area and the tunnel environment data; the wireless relay installation strategy during the construction process is determined based on the installation position of the wireless relay and the coverage direction to provide wireless communication for the tunnel construction equipment, which solves the technical problem that when the wireless communication technology is applied to the shield tunnel construction site, the wireless communication signal may be attenuated due to the change of the tunnel environment data during the collection and construction process, resulting in poor wireless communication signal and unsatisfactory communication effect.

[0044] As an exemplary embodiment, in order to ensure that the wireless signal after switching is not too large and thus causes network instability, the following method may be used when selecting the wireless signal attenuation area:

[0045] Determine the real-time strength of the wireless signal based on the wireless signal data; determine whether the real-time strength of the wireless signal is less than a preset strength, the preset strength being the strength when the change in signal strength after the wireless communication device switches to the next wireless signal transmission source is less than a preset value; when the wireless signal strength is less than the preset strength, determine that the current area is a wireless signal attenuation area.

[0046] For the above technical solution, in order to reduce signal attenuation and avoid signal fluctuations of wireless devices during signal switching, and realize seamless switching of the device when switching between wireless signals provided by two wireless relays, it is determined whether the real-time strength of the wireless signal is less than the preset strength. The preset strength is the strength when the change in signal strength after the device switches to the next wireless signal transmission source is less than the preset value. When the wireless signal strength is less than the preset strength, it indicates that the device will experience signal fluctuations caused by signal attenuation during the signal process, and the current area is determined to be a wireless signal attenuation area.

[0047] Exemplarily, the signal range of the overlapping area between the two wireless signal transmission sources may be at least within the range of 20% dBm-50% dBm.

[0048] Exemplarily, the method of determining the installation position and coverage direction of the wireless relay based on the wireless signal attenuation area, the tunnel environment data and the preset tunnel construction data includes: determining the wireless relay installation area based on the signal attenuation area; determining the bending radius of the tunnel axis bending area of ​​the wireless relay installation area based on the tunnel environment data and the preset tunnel construction data; obtaining the coverage angle of the wireless relay to be installed; and determining the installation position and installation angle of the wireless relay based on the bending radius and the coverage angle.

[0049] Among them, after determining the wireless signal attenuation area, in order to avoid the occurrence of wireless signal attenuation in the area and to cover the entire communication area as much as possible, and reduce the number of wireless relay installations in the entire area, the bending radius of the tunnel axis bending area of ​​the wireless relay installation area is determined based on the tunnel environmental data and the preset tunnel construction data. As an exemplary embodiment, in actual construction, the bending radius of the tunnel axis bending area may have errors due to different geology and construction design. In order to more accurately determine the installation position, the installation position and installation angle of the wireless relay can be determined in combination with the environmental data in the actual construction process and the tunnel design data; exemplarily, the wireless relay is installed in the latter half of the wireless signal attenuation area relative to the previous wireless relay installation area; the installation angle of the wireless relay installation area is toward the minimum signal direction or the direction in which the signal gradually decreases in the wireless signal attenuation area.

[0050] Exemplarily, the installation location may be a top, a side wall, or the like of a tunnel; it is understandable that the higher the installation location, the wider the signal coverage range of the wireless relay corresponding to the installation location.

[0051] As an exemplary embodiment, determining the installation position and installation angle of the wireless relay based on the bending radius and the coverage angle includes: determining the coverage range of the wireless signal in the bending area based on the bending radius and the installation position of the current wireless relay or wireless AP and the coverage angle of the current wireless signal; within the coverage range, determining the installation position and installation angle of the next wireless relay, the installation position being located in a tunnel area behind the bending apex of the bending area, and the installation angle being away from the bending area.

[0052] Since wireless signals propagate in a straight line, there may be reflections in the curved area. Therefore, the coverage area of ​​the current signal in the curved area can be determined based on the bending radius and the coverage angle of the current wireless signal. In this coverage area, the signal strength can often ensure normal communication. Therefore, the installation position and installation angle of the next wireless relay can be found in this coverage area. Since wireless signals propagate in a straight line, although there are reflected signals, some metal structures in the tunnel may absorb or shield the wireless signals. Therefore, a large degree of attenuation often begins to occur after the bending vertex in the coverage area, while before or at the bending vertex, the wireless signal of the previous relay is often stronger. Therefore, in this embodiment, in order to ensure that after switching to the network of the next wireless relay, it will not switch back to the wireless network of the original wireless relay, the installation position is located in the tunnel area after the bending vertex of the bending area, and the installation angle is away from the bending area.

[0053] As a further embodiment, before determining the wireless signal attenuation area during the construction process based on the wireless signal data, the method includes: judging whether the bending radius is less than a preset radius; when the bending radius is less than the preset radius, taking the tunnel area after the bending vertex as the signal attenuation area to be screened; in the attenuation area to be screened, determining the wireless signal attenuation area during the construction process based on the wireless signal data.

[0054] Exemplarily, in order to reduce the calibration process of the wireless relay, before determining the wireless signal attenuation area during the construction process based on the wireless signal data, it includes: judging whether the bending radius is less than a preset radius; exemplarily, the smaller the bending radius, the greater the possibility that the device will experience signal attenuation at the bending radius; based on this, the bending radius of the area where the device experiences signal attenuation can be used as the preset radius, and when the bending radius is less than the preset radius, it indicates that the device may experience signal attenuation in the current area; at this time, the tunnel area after the bending vertex is used as the signal attenuation area to be screened; in the attenuation area to be screened, the wireless signal attenuation area during the construction process is determined based on the wireless signal data.

[0055] As an exemplary embodiment, the tunnel construction equipment includes a tunneling device and a round-trip device, wherein the round-trip device is used to travel back and forth between the tunnel entrance and the tunneling equipment, and the round-trip device detects the wireless communication status in real time during the round-trip process, and draws a wireless signal strength heat map based on the wireless communication status; determines the influence factor of the tunnel environment data in the constructed tunnel on the wireless signal based on the wireless signal strength heat map and the tunnel environment data; and adjusts the installation position and installation angle of the wireless relay in the subsequent tunnel construction based on the influence factor.

[0056] For the above technical solution, the round-trip device performs real-time communication verification during the round-trip process; during the round-trip process of the round-trip device, the wireless signal of the round-trip device is constantly switching and changing, and the switching and changing state of the wireless signal will be more obvious at this time; at this time, a wireless signal strength heat map is drawn based on the wireless communication state, and according to the installation influence or environmental influence on the signal strength of the heat map, the installation position and installation angle of the wireless relay in the subsequent tunnel construction are adjusted based on the influence factor during the next installation.

[0057] As an exemplary embodiment, the excavation equipment may include a shield machine, and the round-trip equipment may include a rail car. In this embodiment, the position and angle of the currently installed wireless can also be adjusted based on the heat map. For example, if the network signal is weak in some areas, the angle, direction and installation position of the previous wireless relay can be adjusted to enhance the wireless signal in the area. If the network signal frequently switches in some locations, the angle, direction and installation position of the previous wireless relay or the next wireless relay can be adjusted to enable the wireless network to switch stably.

[0058] In this embodiment, the wireless signal strength heat map can be tested by sending or receiving test data in real time. In this embodiment, after obtaining the wireless signal heat map, if it is determined that the signal attenuation in a certain area is serious, or the wireless signal is unstable, the tunnel environment data of the current area can be collected and analyzed to determine the influencing factors that affect the wireless signal, such as whether there are temporary interference sources in the subsequent construction process, and whether the subsequent equipment will shield the signal. After obtaining the influencing factors, the current tunnel environment can be improved based on the influencing factors, for example, the interference source is shifted. The installation plan of the current wireless relay or the next wireless relay can also be adjusted according to the above embodiment.

[0059] As an exemplary embodiment, the monitoring system further includes: a first video monitoring device installed on the construction equipment; a second video monitoring device installed in the tunnel; the first video monitoring device and the second video monitoring device communicate with the wireless communication device through the wireless signal, and the wireless communication method further includes:

[0060] Determining an installation position and an installation angle of the second video surveillance device based on the bending radius and the coverage angle, wherein the installation position and the installation angle of the second video surveillance device are opposite to the installation position and the installation angle of the wireless relay;

[0061] When the construction equipment switches to connect to the next wireless relay, the second video monitoring device is turned on to obtain the video data in the tunnel, and the video data of the first video monitoring device and the second video monitoring device are spliced ​​to obtain the front and rear monitoring video data of the construction equipment.

[0062] For the above technical solution, the second video monitoring device is installed in the wireless signal switching area, and the second video monitoring device can interact with the construction equipment to obtain whether the construction equipment has wireless signal switching.

[0063] As an exemplary embodiment, the second video monitoring device can also be turned on based on the trigger of the construction equipment. For example, when the construction equipment enters the monitoring area of ​​the second video monitoring device or leaves the monitoring area of ​​the second video monitoring device, the second video monitoring device is triggered to turn on. In this embodiment, a laser sensor or an infrared sensor can be used to sense the construction equipment to trigger the opening or closing of the second video monitoring device.

[0064] On the one hand, when the construction equipment is performing video monitoring, the viewing angle is blocked after turning, and the video may not be able to identify the image behind the equipment, resulting in a blind spot in the field of vision; therefore, the monitoring system further includes: a first video monitoring device installed on the construction equipment; a second video monitoring device installed in the tunnel; the first video monitoring device and the second video monitoring device communicate with the wireless communication device via the wireless signal, and the wireless communication method further includes: determining the installation position and installation angle of the second video monitoring device based on the bending radius and the coverage angle, wherein the installation position and installation angle of the second video monitoring device are opposite to the installation position and installation angle of the wireless relay;

[0065] When the construction equipment switches to connect to the next wireless relay, it indicates that the construction equipment may not be able to recognize the video behind the equipment, and there is a technical problem of blind spot. At this time, the second video surveillance device is turned on to obtain the video data in the tunnel, and the video data of the first video surveillance device and the second video surveillance device are spliced ​​to obtain the front and rear monitoring video data of the construction equipment.

[0066] Secondly, when the construction equipment is switching wireless signals, the network signal may be unstable for a period of time. Therefore, the second video surveillance device is used to collect surveillance video from the rear of the construction equipment to compensate for the lack of surveillance video due to network instability.

[0067] It should be noted that, for the aforementioned method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the present application is not limited by the described order of actions, because according to the present application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

[0068] Through the description of the above implementation methods, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course it can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM (Read-Only Memory) / RAM (Random Access Memory), a disk, or an optical disk), and includes a number of instructions for a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present application.

[0069] According to another aspect of an embodiment of the present application, a wireless communication device for tunnel construction for implementing the above-mentioned wireless communication method for tunnel construction is also provided. Figure 3 is a schematic diagram of an optional wireless communication device for tunnel construction according to an embodiment of the present application, such as Figure 3 As shown, the device may include:

[0070] The data collection module 301 is used to collect the tunnel environment data and the wireless signal data connected to the wireless AP at the tunnel entrance in real time during the construction process of the tunnel construction equipment;

[0071] An area determination module 302, configured to determine a wireless signal attenuation area during construction based on the wireless signal data;

[0072] A direction determination module 303, configured to determine the installation position of the wireless relay and the coverage direction of the transmission signal of the wireless relay based on the wireless signal attenuation area and the tunnel environment data;

[0073] The communication providing module 304 is used to determine the wireless relay installation strategy during the construction process based on the installation position of the wireless relay and the coverage direction to provide wireless communication for the tunnel construction equipment.

[0074] It should be noted that the examples and application scenarios implemented by the above modules and corresponding steps are the same, but are not limited to the contents disclosed in the above embodiments. It should be noted that the above modules as part of the device can be run in Figure 1 In the hardware environment shown, it can be implemented by software or by hardware, wherein the hardware environment includes a network environment.

[0075] According to another aspect of an embodiment of the present application, an electronic device for implementing the above-mentioned wireless communication method for tunnel construction is also provided. The electronic device may be a server, a terminal, or a combination thereof.

[0076] Figure 4 is a structural block diagram of an optional electronic device according to an embodiment of the present application, such as Figure 4 As shown, it includes a processor 402, a communication interface 404, a memory 406 and a communication bus 408, wherein the processor 402, the communication interface 404 and the memory 406 communicate with each other through the communication bus 408, wherein,

[0077] Memory 406, used to store computer programs;

[0078] The processor 402 is used to implement the following steps when executing the computer program stored in the memory 406:

[0079] During the construction process of the tunnel construction equipment, real-time collection of tunnel environment data during the construction process and wireless signal data connected to the wireless AP at the tunnel entrance;

[0080] Determine a wireless signal attenuation area during the construction process based on the wireless signal data;

[0081] Determine the installation position of the wireless relay and the coverage direction of the transmission signal of the wireless relay based on the wireless signal attenuation area and the tunnel environment data;

[0082] The wireless relay installation strategy during the construction process is determined based on the installation position of the wireless relay and the coverage direction to provide wireless communication for tunnel construction equipment.

[0083] Optionally, in this embodiment, the communication bus may be a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus. The communication bus may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 4 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0084] The communication interface is used for communication between the above electronic device and other devices.

[0085] The memory may include RAM, or may include non-volatile memory, such as at least one disk memory. Optionally, the memory may also be at least one storage device located away from the aforementioned processor.

[0086] The above-mentioned processor can be a general-purpose processor, which can include but not be limited to: CPU (Central Processing Unit), NP (Network Processor), etc.; it can also be DSP (Digital Signal Processing), ASIC (Application Specific Integrated Circuit), FPGA (Field-Programmable Gate Array) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.

[0087] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments, and this embodiment will not be described in detail here.

[0088] It can be understood by those skilled in the art that Figure 4 The structure shown is for illustration only. The device for implementing the wireless communication method for tunnel construction may be a terminal device, which may be a smart phone (such as an Android phone, an iOS phone, etc.), a tablet computer, a PDA, a mobile Internet device (Mobile Internet Devices, MID), a PAD, or other terminal devices. Figure 4 It does not limit the structure of the above electronic device. For example, the terminal device may also include Figure 4 More or fewer components (such as network interfaces, display devices, etc.) shown in, or having Figure 4 Different configurations shown.

[0089] A person of ordinary skill in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructing the hardware related to the terminal device through a program, and the program can be stored in a computer-readable storage medium, which can include: a flash drive, ROM, RAM, a magnetic disk or an optical disk, etc.

[0090] According to another aspect of the embodiment of the present application, a storage medium is also provided. Optionally, in this embodiment, the storage medium can be used to execute the program code of the wireless communication method for tunnel construction.

[0091] Optionally, in this embodiment, the storage medium may be located on at least one network device among a plurality of network devices in the network shown in the above embodiment.

[0092] Optionally, in this embodiment, the storage medium is configured to store program codes for executing the following steps:

[0093] During the construction process of the tunnel construction equipment, real-time collection of tunnel environment data during the construction process and wireless signal data connected to the wireless AP at the tunnel entrance;

[0094] Determine a wireless signal attenuation area during the construction process based on the wireless signal data;

[0095] Determine the installation position of the wireless relay and the coverage direction of the transmission signal of the wireless relay based on the wireless signal attenuation area and the tunnel environment data;

[0096] The wireless relay installation strategy during the construction process is determined based on the installation position of the wireless relay and the coverage direction to provide wireless communication for tunnel construction equipment.

[0097] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments, which will not be described in detail in this embodiment.

[0098] Optionally, in this embodiment, the storage medium may include, but is not limited to, various media that can store program codes, such as a USB flash drive, a ROM, a RAM, a mobile hard disk, a magnetic disk, or an optical disk.

[0099] The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0100] If the integrated units in the above embodiments are implemented in the form of software functional units and sold or used as independent products, they can be stored in the above computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling one or more computer devices (which may be personal computers, servers, or network devices, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.

[0101] In the above embodiments of the present application, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0102] In the several embodiments provided in the present application, it should be understood that the disclosed client can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0103] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution provided in this embodiment.

[0104] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0105] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A wireless communication method for tunnel construction, It is characterized in that A monitoring system applicable to tunnel construction equipment, wherein the tunnel construction equipment is provided with at least one of a tunnel environment data acquisition device, a wireless communication device, and a data processing device; During the construction process of the tunnel construction equipment, the tunnel environment data and wireless signal data during the construction process are collected in real time, wherein the wireless signal data is a wireless signal emitted by a wireless AP at the tunnel entrance, or a wireless signal emitted by a wireless relay connected to the wireless AP at the tunnel entrance; Determining the wireless signal attenuation area during the construction process based on the wireless signal data includes: Determine the real-time strength of the wireless signal based on the wireless signal data; Determine whether the real-time strength of the wireless signal is less than a preset strength, where the preset strength is a strength in which the change in signal strength after the wireless communication device switches to a next wireless signal transmission source is less than a preset value; When the wireless signal strength is less than the preset strength, determining the current area as a wireless signal attenuation area; Determine the installation position of the wireless relay and the coverage direction of the transmission signal of the wireless relay based on the wireless signal attenuation area, the tunnel environment data and the preset tunnel construction data; The wireless relay installation strategy during the construction process is determined based on the installation position of the wireless relay and the coverage direction to provide wireless communication for tunnel construction equipment.

2. The wireless communication method for tunnel construction according to claim 1, It is characterized in that The determining the installation position of the wireless relay and the coverage direction of the transmission signal of the wireless relay based on the wireless signal attenuation area, the tunnel environment data and the preset tunnel construction data includes: Determine the wireless relay installation area based on the signal attenuation area; Determine the bending radius of the tunnel axis bending area of ​​the wireless relay installation area based on the tunnel environment data and the preset tunnel construction data; Obtain the coverage angle of the wireless relay to be installed; Determining an installation position and an installation angle of the wireless relay based on the bending radius and the coverage angle; The covering direction is determined based on the installation position and the installation angle.

3. The wireless communication method for tunnel construction according to claim 2, It is characterized in that The determining the installation position and installation angle of the wireless relay based on the bending radius and the coverage angle comprises: Determine the coverage range of the wireless signal in the bending area based on the bending radius, the installation position of the current wireless relay or wireless AP, and the coverage angle of the current wireless signal; Within the coverage range, the installation position and installation angle of the next wireless relay are determined, the installation position is located in a tunnel area behind the bending apex of the bending area, and the installation angle is away from the bending area.

4. The wireless communication method for tunnel construction according to claim 2, It is characterized in that Determining the wireless signal attenuation area during the construction process based on the wireless signal data includes: Determining whether the bending radius is less than a preset radius; When the bending radius is smaller than the preset radius, the tunnel area after the bending vertex is used as the signal attenuation area to be screened; In the attenuation area to be screened, a wireless signal attenuation area during the construction process is determined based on the wireless signal data.

5. The wireless communication method for tunnel construction according to claim 1, It is characterized in that The tunnel construction equipment includes a tunneling device and a round-trip device, wherein the round-trip device is used to travel back and forth between the tunnel entrance and the tunneling device, and the round-trip device detects the wireless communication state in real time during the round-trip process, and draws a wireless signal strength heat map based on the wireless communication state; Determine the influence factor of the tunnel environment data on the wireless signal in the constructed tunnel based on the wireless signal strength heat map and the tunnel environment data; The installation position and installation angle of the wireless relay in subsequent tunnel construction are adjusted based on the influencing factors.

6. The wireless communication method for tunnel construction according to claim 2, It is characterized in that The monitoring system further includes: a first video monitoring device installed on the construction equipment; a second video monitoring device installed in the tunnel; the first video monitoring device and the second video monitoring device communicate with the wireless communication device via the wireless signal, and the wireless communication method further includes: Determining an installation position and an installation angle of the second video surveillance device based on the bending radius and the coverage angle, wherein the installation position and the installation angle of the second video surveillance device are opposite to the installation position and the installation angle of the wireless relay; When the construction equipment switches to connect to the next wireless relay, the second video monitoring device is turned on to obtain the video data in the tunnel, and the video data of the first video monitoring device and the second video monitoring device are spliced ​​to obtain the front and rear monitoring video data of the construction equipment.

7. A wireless communication device for tunnel construction, It is characterized in that A monitoring system applicable to tunnel construction equipment, wherein the tunnel construction equipment is provided with at least one of a tunnel environment data acquisition device, a wireless communication device, and a data processing device; the communication device comprises: A data acquisition module is used to collect tunnel environment data and wireless signal data connected to the wireless AP at the tunnel entrance in real time during the construction process of the tunnel construction equipment; An area determination module is used to determine the wireless signal attenuation area during the construction process based on the wireless signal data, and is also used to determine the real-time strength of the wireless signal based on the wireless signal data; judge whether the real-time strength of the wireless signal is less than a preset strength, and the preset strength is the strength when the change in signal strength after the wireless communication device switches to the next wireless signal transmission source is less than a preset value; when the wireless signal strength is less than the preset strength, determine that the current area is a wireless signal attenuation area; A direction determination module, used to determine the installation position of the wireless relay and the coverage direction of the transmission signal of the wireless relay based on the wireless signal attenuation area, the tunnel environment data and the preset tunnel construction data; The communication providing module is used to determine the wireless relay installation strategy during the construction process based on the installation position of the wireless relay and the coverage direction to provide wireless communication for the tunnel construction equipment.

8. An electronic device comprising a processor, a communication interface, a memory and a communication bus, in, The processor, the communication interface and the memory communicate with each other via the communication bus, wherein: The memory is used to store computer programs; The processor is used to execute the steps of the wireless communication method for tunnel construction according to any one of claims 1 to 6 by running the computer program stored in the memory.

9. A computer-readable storage medium, It is characterized in that The storage medium stores a computer program, wherein the computer program is configured to execute the steps of the wireless communication method for tunnel construction according to any one of claims 1 to 6 when running.

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