Underground pipe gallery communication node and underground pipe gallery communication network system

Abstract

The invention discloses an underground pipe gallery communication node and an underground pipe gallery communication network system. The underground pipe gallery communication node comprises a circuit function layer; the perovskite photovoltaic layer is located on the circuit function layer, electrically connected with the circuit function layer and used for converting light energy into electric energy and supplying power to the circuit function layer; and the packaging protection layer is located on the perovskite photovoltaic layer. According to the underground pipe gallery communication node, the perovskite photovoltaic layer is electrically connected with the circuit function layer, the perovskite photovoltaic layer can convert light energy into electric energy and supply power to the circuit function layer, the efficient power generation capacity of the perovskite photovoltaic layer under the weak light condition is utilized, power can be continuously supplied to the underground pipe gallery communication node, and the communication efficiency of the underground pipe gallery communication node is improved. And meanwhile, the flexibility of underground pipe gallery communication node deployment is not influenced.

Description

Technical Field

[0001] This application relates to the field of wireless communication technology, and in particular to an underground utility tunnel communication node and an underground utility tunnel communication network system. Background Technology

[0002] The communication node in an underground utility tunnel is the core unit of the underground utility tunnel communication network system, responsible for data acquisition, transmission, and processing. In related technologies, underground utility tunnel communication nodes typically rely on external power supply or battery power.

[0003] However, external power supply methods are wired, which are costly and inflexible; battery power supply has limited battery life and requires periodic replacement. The power supply solutions in these technologies cannot simultaneously meet the requirements of underground utility tunnel communication nodes for both long-term stable power supply and flexible deployment. Summary of the Invention

[0004] The purpose of this application is to provide an underground utility tunnel communication node and an underground utility tunnel communication network system, which can meet the requirements of long-term stable power supply and flexible deployment of the underground utility tunnel communication node.

[0005] In response to the existing problems, this application provides the following solutions: Firstly, this application provides an underground utility tunnel communication node, including: Circuit functional layer; A perovskite photovoltaic layer, located on and electrically connected to the circuit functional layer, is used to convert light energy into electrical energy and supply power to the circuit functional layer. An encapsulation and protective layer is located on the perovskite photovoltaic layer.

[0006] In one embodiment, the perovskite photovoltaic layer is made of CH3NH3PbI3, and the perovskite photovoltaic layer is prepared by a solution method; and / or The encapsulation protective layer is made of a transparent fluoropolymer material and is prepared by atomic layer deposition.

[0007] In one embodiment, the thickness of the encapsulation protective layer is 0.1 mm; and / or The length and width of the underground utility tunnel communication node are both 50 mm, and the thickness of the underground utility tunnel communication node is less than or equal to 1 mm.

[0008] In one embodiment, the circuit functional layer integrates a microprocessor module, a wireless communication module, and a signal conditioning circuit, wherein the wireless communication module supports the 2.4 GHz band and the 5 GHz band.

[0009] In one embodiment, the circuit functional layer and the perovskite photovoltaic layer, as well as the perovskite photovoltaic layer and the encapsulation protective layer, are bonded together by a flexible adhesive.

[0010] Secondly, this application provides an underground utility tunnel communication network system, comprising: Multiple underground utility tunnel communication nodes, and the multiple underground utility tunnel communication nodes establish communication connections with each other through wireless links; Multiple inspection robots are connected to the underground utility tunnel communication node via a wireless link.

[0011] In one embodiment, the operation process of the underground utility tunnel communication network system includes an initialization phase, a network topology self-organization construction phase, a stable operation phase, and an energy collaborative management phase, wherein: When the underground utility tunnel communication network system is in the initialization phase, each underground utility tunnel communication node automatically powers on, initializes, and enters the domain discovery state. When the underground utility tunnel communication network system is in the self-organizing construction phase of the network topology, the underground utility tunnel communication network system uses a distributed algorithm to elect cluster head nodes based on the received signal strength and quality assessment of each underground utility tunnel communication node, forming a hierarchical network structure. When the underground utility tunnel communication network system is in the stable operation phase, each underground utility tunnel communication node automatically adjusts its working mode based on the light intensity of its environment. When the underground utility tunnel communication network system is in the energy collaborative management phase, the perovskite photovoltaic layer of each underground utility tunnel communication node continuously supplies power to each underground utility tunnel communication node, and the underground utility tunnel communication network system dynamically adjusts the communication frequency and transmission power of each underground utility tunnel communication node based on the energy status of each underground utility tunnel communication node.

[0012] In one embodiment, the operation of the underground utility tunnel communication network system further includes a network maintenance phase. When the underground utility tunnel communication network system is in the network maintenance phase, the underground utility tunnel communication network system continuously monitors the status of the wireless link through each underground utility tunnel communication node. When a communication interruption of the wireless link is detected, and / or when one or more underground utility tunnel communication nodes are detected to be in failure, the network connectivity of the wireless link is restored through local topology reconstruction and routing update.

[0013] In one embodiment, each of the underground utility tunnel communication nodes automatically adjusts its operating mode based on the ambient light intensity, including: When the light intensity of the environment where the underground utility tunnel communication node is located is greater than the first preset threshold, the working mode of the underground utility tunnel communication node is the normal working mode. When the light intensity of the environment where the underground utility tunnel communication node is located is less than or equal to the first preset threshold and greater than the second preset threshold, the working mode of the underground utility tunnel communication node is the energy-saving working mode. When the light intensity of the environment where the underground utility tunnel communication node is located is less than or equal to the second preset threshold, the working mode of the underground utility tunnel communication node is the extreme power saving working mode. Wherein, if the first preset threshold is greater than the second preset threshold, the communication frequency and transmission power of the underground utility tunnel communication node decrease sequentially in the normal working mode, the energy-saving working mode, and the extreme power-saving working mode.

[0014] In one embodiment, the first preset threshold is 200 lux and the second preset threshold is 50 lux.

[0015] According to the specific embodiments provided in this application, the following technical effects are disclosed: This application provides an underground utility tunnel communication node and an underground utility tunnel communication network system. The perovskite photovoltaic layer in the underground utility tunnel communication node is electrically connected to the circuit functional layer. The perovskite photovoltaic layer can convert light energy into electrical energy and supply power to the circuit functional layer. By utilizing the high-efficiency power generation capability of the perovskite photovoltaic layer under low light conditions, it can continuously supply power to the underground utility tunnel communication node without affecting the flexibility of the deployment of the underground utility tunnel communication node. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a cross-sectional schematic diagram of an underground utility tunnel communication node in one embodiment of this application; Figure 2 This is a schematic diagram of the architecture of an underground utility tunnel communication network system in one embodiment of this application; Figure 3 This is a schematic diagram of the network topology self-organization process of an underground utility tunnel communication network system in one embodiment of this application.

[0018] Figure label: 100 - Underground utility tunnel communication node, 110 - Circuit function layer, 120 - Perovskite photovoltaic layer, 130 - Encapsulation protection layer, 200 - Inspection robot. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] It should be understood that when an element or layer is referred to as "on," "adjacent to," "connected to," or "coupled to" other elements or layers, it may be directly on, adjacent to, connected to, or coupled to other elements or layers, or there may be intervening elements or layers. Conversely, when an element is referred to as "directly on," "directly adjacent to," "directly connected to," or "directly coupled to" other elements or layers, there are no intervening elements or layers. It should be understood that although the terms first, second, third, etc., may be used to describe various elements, components, areas, layers, and / or portions, these elements, components, areas, layers, and / or portions should not be limited by these terms. These terms are only used to distinguish one element, component, area, layer, or portion from another element, component, area, layer, or portion. Therefore, without departing from the teachings of this invention, the first element, component, area, layer, or portion discussed below may be referred to as the second element, component, area, layer, or portion.

[0021] Spatial relation terms such as “below,” “under,” “below,” “under,” “above,” “above,” etc., are used herein for convenience of description to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms are intended to also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, then the element or feature described as “below” or “under” the other element or feature will be oriented “above” the other element or feature. Therefore, the exemplary terms “below” and “under” can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or otherwise) and the spatial descriptive terms used herein will be interpreted accordingly.

[0022] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. When used herein, the singular forms “a,” “an,” and “the” are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprise” and / or “comprising,” when used in this specification, identify the presence of the stated features, integers, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups. When used herein, the term “and / or” includes any and all combinations of the associated listed items.

[0023] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Therefore, in view of the aforementioned technical problems, this application provides an underground utility tunnel communication node, such as... Figure 1 As shown, the underground utility tunnel communication node 100 of this application includes: Circuit functional layer 110; The perovskite photovoltaic layer 120 is located on the circuit functional layer 110 and electrically connected to the circuit functional layer 110, and is used to convert light energy into electrical energy and supply power to the circuit functional layer 110. The encapsulation protective layer 130 is located on the perovskite photovoltaic layer 120.

[0025] Among them, the circuit functional layer 110 is the core functional layer of the underground utility tunnel communication node 100, which realizes data acquisition, transmission and processing, and wireless communication with the outside world and between nodes. It is the foundation for the underground utility tunnel communication node 100 to complete communication tasks. The perovskite photovoltaic layer 120 is the core power supply unit of the underground utility tunnel communication node 100. The perovskite photovoltaic layer 120 can utilize the excellent photoelectric conversion characteristics of perovskite materials to achieve efficient energy conversion in the low light environment of the underground utility tunnel, so as to provide sustainable power for the circuit functional layer 110. At the same time, the perovskite photovoltaic layer 120 is set in the underground utility tunnel communication node 100, which does not rely on external wired power supply and will not affect the deployment flexibility of the underground utility tunnel communication node 100. The encapsulation protection layer 130 is the external protection structure of the underground utility tunnel communication node 100, which undertakes multiple protection functions such as physical protection, environmental isolation, and structural support.

[0026] In the underground utility tunnel communication node of this application embodiment, the perovskite photovoltaic layer in the underground utility tunnel communication node is electrically connected to the circuit functional layer. The perovskite photovoltaic layer can convert light energy into electrical energy and supply power to the circuit functional layer. Utilizing the high-efficiency power generation capability of the perovskite photovoltaic layer under low light conditions, it can continuously supply power to the underground utility tunnel communication node without affecting the deployment flexibility of the underground utility tunnel communication node.

[0027] Below, for reference Figure 1 The underground utility tunnel communication node 100 of this application embodiment will be described in detail, wherein, Figure 1 This is a cross-sectional schematic diagram of an underground utility tunnel communication node in one embodiment of this application.

[0028] In one exemplary embodiment of this application, the underground utility tunnel communication node 100 may be used in the underground utility tunnel communication network system described below or other types of underground utility tunnel communication network systems, and this application does not limit this.

[0029] In one exemplary embodiment of this application, the underground utility tunnel communication node 100 is adapted to be fixed to the inner wall of the underground utility tunnel or other areas of the underground utility tunnel, and this application does not limit this. Exemplarily, the underground utility tunnel communication node 100 can be fixed to the inner wall of the underground utility tunnel by a combination of magnetic attraction and adhesive; specifically, a thermally conductive adhesive layer can be provided between the underground utility tunnel communication node 100 and the inner wall surface of the underground utility tunnel to facilitate heat dissipation of the underground utility tunnel communication node 100; more specifically, the underground utility tunnel communication node 100 is adapted to be fixed to the inner wall of the underground utility tunnel through the side where the circuit functional layer 110 is located, and a thermally conductive adhesive layer is provided between the circuit functional layer 110 and the inner wall surface of the underground utility tunnel.

[0030] In an exemplary embodiment of this application, the circuit functional layer 110, the perovskite photovoltaic layer 120, and the encapsulation protection layer 130 in the underground utility tunnel communication node 100 all adopt a flexible structure design (for example, the perovskite photovoltaic layer 120 can be made of flexible perovskite material), which enables the underground utility tunnel communication node 100 to be attached to curved structures, thereby enhancing the adaptability and deployment flexibility of the underground utility tunnel communication node 100 in the underground utility tunnel environment.

[0031] In one exemplary embodiment of this application, the circuit functional layer 110 and the perovskite photovoltaic layer 120, as well as the perovskite photovoltaic layer 120 and the encapsulation protection layer 130, are bonded together by a flexible adhesive, thereby improving the adhesion between the film layers and further enhancing the flexibility of the underground utility tunnel communication node 100.

[0032] In one exemplary embodiment of this application, the perovskite photovoltaic layer 120 is made of CH3NH3PbI3, which is used for energy conversion in low-light environments. In other embodiments, the perovskite photovoltaic layer 120 may be made of any other suitable perovskite material, and this application does not impose any limitations on this.

[0033] In one exemplary embodiment of this application, the perovskite photovoltaic layer 120 is prepared by a solution method. The perovskite photovoltaic layer 120 prepared by the solution method exhibits better uniformity and is more suitable for the miniaturized design of the underground utility tunnel communication node 100; simultaneously, the solution method also facilitates the fabrication of flexible perovskite photovoltaic layers 120. Specifically, the solution method used in this application to prepare the perovskite photovoltaic layer 120 is a broad preparation method, encompassing all techniques for processing perovskite precursor solutions into thin films. For example, the solution method in this application may include various processes such as slot coating and spin coating.

[0034] In one exemplary embodiment of this application, the perovskite photovoltaic layer 120 can power the circuit functional layer 110 via a DC-DC conversion circuit, wherein the DC-DC conversion circuit can be integrated into the circuit functional layer 110. In other embodiments, the perovskite photovoltaic layer 120 can also be electrically connected to the circuit functional layer 110 via other power transmission structures.

[0035] In one exemplary embodiment of this application, the circuit functional layer 110 integrates a microprocessor, a wireless communication module, and a signal conditioning circuit, wherein the wireless communication module supports the 2.4 GHz and 5 GHz frequency bands. In other embodiments, the wireless communication module may also support other frequency bands, which are not limited in this application. Exemplarily, the circuit functional layer 110 may also include other commonly used modules, which will not be described in detail here.

[0036] In one exemplary embodiment of this application, the microprocessor is the control core of the circuit functional layer 110, responsible for coordinating the operation and logic scheduling of hardware modules. It can acquire and process data, execute control instructions and programs, issue control instructions to other modules, and realize the collaborative management of various modules. Exemplarily, the microprocessor can be an ARM Cortex-M series chip, or other chips can be used; this application does not impose any limitations on this.

[0037] In one exemplary embodiment of this application, the wireless communication module is a key component for realizing data interaction between nodes and the outside world, as well as between nodes. Its functions include, but are not limited to, modulation and demodulation, radio frequency transmission, protocol adaptation, and link management.

[0038] In one exemplary embodiment of this application, the signal conditioning circuit is responsible for processing the signal, including but not limited to signal amplification, filtering and noise reduction, interference suppression, signal conversion, calibration compensation, and level matching.

[0039] In one exemplary embodiment of this application, the encapsulation protective layer 130 is made of a transparent fluoropolymer material. In other embodiments, the encapsulation protective layer 130 may be made of any other suitable material, and this application does not impose any limitations on this.

[0040] In one exemplary embodiment of this application, the encapsulation protective layer 130 is formed using an atomic layer deposition (ALD) process. In other embodiments, the encapsulation protective layer 130 may also be formed using any other suitable process, and this application does not impose any limitations on this.

[0041] In one exemplary embodiment of this application, the thickness of the encapsulation protective layer 130 is 0.1 mm. In other embodiments, the thickness of the encapsulation protective layer 130 can be reasonably set based on actual needs, and this application does not impose any limitations on this.

[0042] In one exemplary embodiment of this application, the length and width of the underground utility tunnel communication node 100 are both 50 mm, and the thickness of the underground utility tunnel communication node is less than or equal to 1 mm. It is worth noting that when the underground utility tunnel communication node 100 is fixed to the inner wall of the underground utility tunnel, the length and width directions of the underground utility tunnel communication node 100 are parallel to the inner wall surface, and the thickness direction of the underground utility tunnel communication node 100 is perpendicular to the inner wall surface. In other embodiments, the length, width, and thickness of the underground utility tunnel communication node 100 can be reasonably set based on actual needs, and this application does not impose any limitations on this.

[0043] This concludes the description of the structure of the underground utility tunnel communication node according to the embodiments of this application. It is understood that the underground utility tunnel communication node of this application includes not only the structure described above, but may also include other necessary structures, all of which are included within the scope of the underground utility tunnel communication node of this application. When the underground utility tunnel communication node of this application also includes other structures requiring power supply, the perovskite photovoltaic layer can also be electrically connected to these structures to supply power to them.

[0044] In summary, the underground utility tunnel communication node of this application has a perovskite photovoltaic layer electrically connected to the circuit functional layer. The perovskite photovoltaic layer can convert light energy into electrical energy and supply power to the circuit functional layer. By utilizing the high-efficiency power generation capability of the perovskite photovoltaic layer under low light conditions, it can continuously supply power to the underground utility tunnel communication node without affecting the flexibility of the deployment of the underground utility tunnel communication node.

[0045] This application also provides an underground utility tunnel communication network system, such as... Figure 2As shown, the underground utility tunnel communication network system includes: multiple underground utility tunnel communication nodes 100 as described above, which establish communication connections with each other via wireless links; and multiple inspection robots 200, which establish communication connections with the underground utility tunnel communication nodes 100 via wireless links. Exemplarily, the underground utility tunnel communication nodes 100 in the underground utility tunnel communication network system are adapted to be fixed to the inner wall of the underground utility tunnel, and the multiple underground utility tunnel communication nodes 100 are spaced apart along the extension direction of the inner wall, with the spacing between adjacent underground utility tunnel communication nodes 100 being 5 to 10 meters; the inspection robots 200 can move along the bottom of the underground utility tunnel. Exemplarily, any two inspection robots 200 can directly communicate with each other via a wireless link (for example, when the distance between two inspection robots 200 is close, the two inspection robots 200 can directly communicate with each other), or they can establish communication connections through the underground utility tunnel communication nodes 100.

[0046] It is understood that the underground utility tunnel communication node 100 in the underground utility tunnel communication network system of this application embodiment has been described in detail above. In order to avoid repetition, it will not be described again here. For explanations and descriptions of the content related to the underground utility tunnel communication node 100, please refer to the description above.

[0047] The underground utility tunnel communication network system of this application embodiment includes a perovskite photovoltaic layer as the underground utility tunnel communication node. By utilizing the high-efficiency power generation capability of the perovskite photovoltaic layer under low light conditions, it can continuously power the underground utility tunnel communication node without affecting the deployment flexibility of the underground utility tunnel communication node. This solves the problems of energy limitation and inflexible deployment of the underground utility tunnel communication node in the underground utility tunnel communication network system.

[0048] In one exemplary embodiment of this application, the operation process of the underground utility tunnel communication network system of this application includes an initialization phase, a network topology self-organization construction phase, a stable operation phase, and an energy collaborative management phase, wherein: When the underground utility tunnel communication network system is in the initialization phase, each underground utility tunnel communication node 100 automatically powers on, initializes, and enters the domain discovery state. At this time, each underground utility tunnel communication node 100 periodically broadcasts detection signals including node identifiers and energy status to establish a neighbor relationship table.

[0049] When the underground utility tunnel communication network system is in the self-organizing construction phase of network topology, such as Figure 3 As shown, the underground utility tunnel communication network system evaluates the received signal strength and quality of each underground utility tunnel communication node 100, and uses a distributed algorithm to elect cluster head nodes to form a hierarchical network structure, that is, to form a self-organizing network through the network topology self-organizing process; among them, the cluster head nodes are responsible for data aggregation and routing forwarding.

[0050] When the underground utility tunnel communication network system is in a stable operation phase, each underground utility tunnel communication node 100 automatically adjusts its working mode according to the light intensity of its environment.

[0051] When the underground utility tunnel communication network system is in the energy collaborative management stage, the perovskite photovoltaic layer of each underground utility tunnel communication node 100 continuously supplies power to each underground utility tunnel communication node 100. The underground utility tunnel communication network system dynamically adjusts the communication frequency and transmission power of each underground utility tunnel communication node 100 based on the energy status of each underground utility tunnel communication node 100.

[0052] Thus, the underground utility tunnel communication network system of this application embodiment achieves intelligent networking through network self-organizing topology, and solves the problems of limited energy of communication nodes, unstable signal transmission and poor network reliability in the underground utility tunnel communication network system by combining energy collaborative management and the application of perovskite photovoltaic layers in underground utility tunnel communication nodes.

[0053] In one exemplary embodiment of this application, the operation of the underground utility tunnel communication network system further includes a network maintenance phase. During this phase, the system continuously monitors the status of the wireless links through the various underground utility tunnel communication nodes 100. When a wireless link communication interruption is detected, and / or when one or more underground utility tunnel communication nodes 100 fail, network connectivity is restored through local topology reconstruction and route updates. In other words, the underground utility tunnel communication network system of this application can also automatically reconstruct communication links through a self-organizing network architecture, achieving autonomous maintenance and further improving network reliability.

[0054] In an exemplary embodiment of this application, the above-described operational phases can be carried out in parallel without conflict. For example, during the operation of the underground utility tunnel communication network system, the initialization phase is entered first; then, the network topology self-organization construction phase is entered; then, the stable operation phase, energy collaborative management phase, and network maintenance phase are entered simultaneously.

[0055] In one exemplary embodiment of this application, each underground utility tunnel communication node 100 includes multiple operating modes. Each underground utility tunnel communication node 100 automatically adjusts its operating mode based on the ambient light intensity, including: when the ambient light intensity of the underground utility tunnel communication node 100 is greater than a first preset threshold, the operating mode of the underground utility tunnel communication node 100 is a normal operating mode; when the ambient light intensity of the underground utility tunnel communication node 100 is less than or equal to the first preset threshold but greater than a second preset threshold, the operating mode of the underground utility tunnel communication node 100 is an energy-saving operating mode; when the ambient light intensity of the underground utility tunnel communication node 100 is less than or equal to the second preset threshold, the operating mode of the underground utility tunnel communication node 100 is an extreme power-saving operating mode; wherein, when the first preset threshold is greater than the second preset threshold, the communication frequency and transmission power of the underground utility tunnel communication node 100 decrease sequentially in the normal operating mode, energy-saving operating mode, and extreme power-saving operating mode.

[0056] Specifically, when the ambient light intensity of the underground utility tunnel communication node 100 is greater than the first preset threshold, sufficient light is confirmed, and the underground utility tunnel communication node 100 maintains normal communication frequency and transmission power. The underground utility tunnel communication node 100 has high power consumption to maximize network performance and communication reliability. When the ambient light intensity of the underground utility tunnel communication node 100 is less than or equal to the first preset threshold but greater than the second preset threshold, weak light is confirmed, and the underground utility tunnel communication node 100 switches to energy-saving mode, reducing communication frequency (e.g., reducing broadcast or data reporting frequency) and transmission power. When the ambient light intensity of the underground utility tunnel communication node 100 is less than or equal to the second preset threshold, weak light is confirmed, and the underground utility tunnel communication node 100 switches to extreme power-saving mode, reducing communication frequency and transmission power to the minimum. The underground utility tunnel communication node 100 only maintains heartbeat signals or responds to network wake-up calls, with extremely short communication distances.

[0057] In this way, by adjusting the working mode of the underground utility tunnel communication node 100 based on the light intensity, it is beneficial to the long-term self-sustaining operation of the underground utility tunnel communication node 100, and at the same time, it can achieve the optimal energy allocation of the underground utility tunnel communication network system.

[0058] In one exemplary embodiment of this application, each underground utility tunnel communication node 100 infers the ambient light intensity based on the voltage and current data generated by photovoltaics, thereby switching its working mode.

[0059] In one exemplary embodiment of this application, the first preset threshold is 200 lux and the second preset threshold is 50 lux. In other embodiments, the first and second preset thresholds may be any other suitable values, and this application does not impose any limitations on them.

[0060] In an exemplary embodiment of this application, when the energy collaborative management phase and the stable operation phase are carried out in parallel, on the one hand, each underground utility tunnel communication node 100 automatically adjusts its operating mode based on the ambient light intensity, such as adjusting to a normal operating mode, an energy-saving operating mode, or an extreme power-saving operating mode; on the other hand, the underground utility tunnel communication network system dynamically adjusts the communication frequency and transmission power of each underground utility tunnel communication node 100 in its current operating mode based on the energy status of each underground utility tunnel communication node 100. For example, when the underground utility tunnel communication node 100 is in the normal operating mode, the underground utility tunnel communication network system further dynamically adjusts the communication frequency and transmission power of the underground utility tunnel communication node 100 based on factors such as the amount of data transmitted and the transmission distance of the underground utility tunnel communication node 100, on the basis of the reference communication frequency and reference transmission power of the normal operating mode.

[0061] In summary, the underground utility tunnel communication network system of this application realizes intelligent networking and autonomous maintenance through network self-organizing topology, and solves the problems of limited energy of communication nodes, unstable signal transmission and poor network reliability in the underground utility tunnel communication network system by combining energy collaborative management and the application of perovskite photovoltaic layers in underground utility tunnel communication nodes.

[0062] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A communication node for an underground utility tunnel, characterized in that, include: Circuit functional layer; A perovskite photovoltaic layer, located on and electrically connected to the circuit functional layer, is used to convert light energy into electrical energy and supply power to the circuit functional layer. An encapsulation and protective layer is located on the perovskite photovoltaic layer.

2. The underground utility tunnel communication node according to claim 1, characterized in that, The perovskite photovoltaic layer is made of CH3NH3PbI3 and is prepared by a solution method; and / or The encapsulation protective layer is made of a transparent fluoropolymer material and is prepared by atomic layer deposition.

3. The underground utility tunnel communication node according to claim 1, characterized in that, The thickness of the encapsulation protective layer is 0.1 mm; and / or The length and width of the underground utility tunnel communication node are both 50 mm, and the thickness of the underground utility tunnel communication node is less than or equal to 1 mm.

4. The underground utility tunnel communication node according to claim 1, characterized in that, The circuit functional layer integrates a microprocessor module, a wireless communication module, and a signal conditioning circuit. The wireless communication module supports the 2.4 GHz band and the 5 GHz band.

5. The underground utility tunnel communication node according to claim 1, characterized in that, The circuit functional layer and the perovskite photovoltaic layer, as well as the perovskite photovoltaic layer and the encapsulation protective layer, are bonded together with flexible adhesives.

6. An underground utility tunnel communication network system, characterized in that, include: The underground utility tunnel communication nodes according to any one of claims 1-5, wherein the underground utility tunnel communication nodes establish a communication connection with each other via a wireless link; Multiple inspection robots are connected to the underground utility tunnel communication node via a wireless link.

7. The underground utility tunnel communication network system according to claim 6, characterized in that, The operation of the underground utility tunnel communication network system includes an initialization phase, a network topology self-organization construction phase, a stable operation phase, and an energy collaborative management phase, wherein: When the underground utility tunnel communication network system is in the initialization phase, each underground utility tunnel communication node automatically powers on, initializes, and enters the domain discovery state. When the underground utility tunnel communication network system is in the self-organizing construction phase of the network topology, the underground utility tunnel communication network system uses a distributed algorithm to elect cluster head nodes based on the received signal strength and quality assessment of each underground utility tunnel communication node, forming a hierarchical network structure. When the underground utility tunnel communication network system is in the stable operation phase, each underground utility tunnel communication node automatically adjusts its working mode based on the light intensity of its environment. When the underground utility tunnel communication network system is in the energy collaborative management phase, the perovskite photovoltaic layer of each underground utility tunnel communication node continuously supplies power to each underground utility tunnel communication node, and the underground utility tunnel communication network system dynamically adjusts the communication frequency and transmission power of each underground utility tunnel communication node based on the energy status of each underground utility tunnel communication node.

8. The underground utility tunnel communication network system according to claim 7, characterized in that, The operation of the underground utility tunnel communication network system also includes a network maintenance phase. When the underground utility tunnel communication network system is in the network maintenance phase, the underground utility tunnel communication network system continuously monitors the status of the wireless link through each underground utility tunnel communication node. When a wireless link communication interruption is detected, and / or one or more underground utility tunnel communication nodes are detected to be in failure, the network connectivity of the wireless link is restored through local topology reconstruction and routing update.

9. The underground utility tunnel communication network system according to claim 7, characterized in that, The underground utility tunnel communication nodes automatically adjust their operating modes based on the ambient light intensity, including: When the light intensity of the environment where the underground utility tunnel communication node is located is greater than the first preset threshold, the working mode of the underground utility tunnel communication node is the normal working mode. When the light intensity of the environment where the underground utility tunnel communication node is located is less than or equal to the first preset threshold and greater than the second preset threshold, the working mode of the underground utility tunnel communication node is the energy-saving working mode. When the light intensity of the environment where the underground utility tunnel communication node is located is less than or equal to the second preset threshold, the working mode of the underground utility tunnel communication node is the extreme power saving working mode. Wherein, if the first preset threshold is greater than the second preset threshold, the communication frequency and transmission power of the underground utility tunnel communication node decrease sequentially in the normal working mode, the energy-saving working mode, and the extreme power-saving working mode.

10. The underground utility tunnel communication network system according to claim 9, characterized in that, The first preset threshold is 200 lux, and the second preset threshold is 50 lux.

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