Urban rail transit multi-system fusion wireless coverage system and control method

Abstract

The invention provides an urban rail transit multi-system fusion wireless coverage system and a control method, and relates to the technical field of communication transmission, and the system comprises a central network management device, a machine room multi-system fusion device, a multi-system fusion wireless terminal device and a full-band antenna which are connected in sequence. Various radio frequency signals can be converted into digital signals, the digital signals and WIFI signals are integrated through a three-layer switching module, unified output of digital optical signals is achieved, and the digital optical signals are connected to multi-system fusion wireless terminal equipment through a wired link. Digital optical signals are converted into required wireless signals of various systems through the multi-system fusion wireless terminal, and multi-system fusion wireless coverage is achieved through the multi-band antenna. According to the method, complex wireless link budget is avoided, and the deployment efficiency of the urban rail transit wireless system is improved; the problems of resource waste and disordered arrangement of equipment terminals caused by repeated construction of an urban rail transit wireless system are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of communication transmission, and particularly to a wireless coverage system for multi-mode integration in urban rail transit and a control method for the wireless coverage system for multi-mode integration in urban rail transit. Background Art

[0002] In currently opened urban rail transit lines, the wireless coverage system has formats such as LTE, WIFI, TETRA, PDT, etc. The wireless coverage systems of various formats are independent of each other in the subway, and there are various indoor small ceiling ceiling-mounted units and APs of various formats everywhere in the station hall. This results in a mess of terminals on the station hall ceiling, which is not conducive to the aesthetic appearance of the overall station decoration; secondly, it is the repeated construction of the wireless coverage system, which causes a certain degree of waste of resources; finally, the traditional wireless antenna-feeder system consists of "antenna + feeder + passive components", and the deployment of the wireless coverage system requires complex link budget to complete, and the deployment is relatively difficult. Summary of the Invention

[0003] In view of the above problems, the present invention proposes a wireless coverage system for multi-mode integration in urban rail transit, which realizes the integration of multi-mode wireless at the site level and solves the problem of resource waste caused by repeated construction.

[0004] In a first aspect, a wireless coverage system for multi-mode integration in urban rail transit is provided, including a central network management device, a multi-mode integration device in the computer room, a multi-mode integration wireless terminal device, and a full-band antenna connected in sequence;

[0005] The central network management device is used to configure the data of the types of signal sources required by the multi-mode integration wireless terminal device;

[0006] The multi-mode integration device in the computer room is used to receive external signal sources, digitize the external signal sources, and at the same time send the digitized signals to the multi-mode integration wireless terminal device;

[0007] The multi-mode integration wireless terminal device is used to selectively receive the signals sent by the multi-mode integration device in the computer room according to the data of the types of signal sources required, and at the same time convert the received digitized signals into radio frequency signals and transmit them to the full-band antenna;

[0008] The full-band antenna is used to receive the radio frequency signals sent by the multi-mode integration wireless terminal device and radiate signals outward.

[0009] Further, the multi-mode integration wireless terminal device includes a three-layer switching module, a digital signal radio frequency conversion module, a management module, and a power supply module;

[0010] The three-layer switching module is respectively connected to the management module and the digital signal radio frequency conversion module, and the power supply module is respectively connected to the management module and the digital signal radio frequency conversion module;

[0011] The three-layer switching module is used to unpack the received digitalized signal and transmit it to the digital signal radio frequency conversion module;

[0012] The management module is used to send a power on / off command to the power supply module according to the required signal source type data;

[0013] The power supply module is used to control the digital signal radio frequency conversion module to select and connect the corresponding signal channels according to the power on / off command, so as to realize sending the required signal source type to the full-band antenna.

[0014] Further, the multi-mode fusion device in the computer room at least includes a radio frequency signal digital conversion module and a three-layer switching module connected to each other;

[0015] The radio frequency signal digital conversion module is used to receive the external signal source, convert the external signal source from a radio frequency signal into a digital signal, and transmit it to the three-layer switching module;

[0016] The three-layer switching module is used to receive the digital signal and transmit it to the multi-mode fusion wireless terminal device.

[0017] Further, the multi-mode fusion device in the computer room further includes a control module, and the control module is connected to the three-layer switching module and is used to summarize the working states of the multi-mode fusion wireless terminal devices.

[0018] Further, the three-layer switching module can be a three-layer switch or an internal three-layer switch board.

[0019] Further, the mode fusion wireless terminal device and the full-band antenna are in one-to-one correspondence.

[0020] Further, each of the full-band antennas can radiate multiple different types of radio frequency signals.

[0021] Further, there are multiple full-band antennas, and the multiple full-band antennas are arranged at intervals.

[0022] Further, the central network management device is also used to collect the working states and fault information of the multi-mode fusion device in the computer room and the multi-mode fusion wireless terminal devices.

[0023] Second, a control method for a multi-mode fusion wireless coverage system of urban rail transit is provided, including:

[0024] The central network management device configures the types of signal sources required for the multi-mode integrated wireless terminal device;

[0025] The multi-mode integrated device in the computer room receives the external signal sources, digitizes the external signal sources, and simultaneously sends the digitized signals to the multi-mode integrated wireless terminal device;

[0026] The multi-mode integrated wireless terminal device selectively receives the signals sent by the multi-mode integrated device in the computer room according to the required signal source type data, and simultaneously converts the received digitized signals into radio frequency signals and transmits them to the full-band antenna;

[0027] The full-band antenna receives the radio frequency signals sent by the multi-mode integrated wireless terminal device and radiates the signals outward.

[0028] One or more technical solutions provided by the present application have at least the following technical effects or advantages:

[0029] It can convert various radio frequency signals into digital signals, and at the same time integrate with WIFI signals through a three-layer switching module to achieve unified output of digital optical signals. The digital optical signals are connected to the multi-mode integrated wireless terminal device through a wired link. The multi-mode integrated wireless terminal converts the digital optical signals into various required wireless signals, and realizes multi-mode integrated wireless coverage through a multi-band antenna. The present invention avoids complex wireless link budgeting and improves the deployment efficiency of the urban rail transit wireless system; it solves the problems of resource waste and messy arrangement of equipment terminals caused by repeated construction of the urban rail transit wireless system.

[0030] Other features and advantages of the present invention will be described in the following specification, and, in part, will become obvious from the specification, or will be understood by implementing the present invention. The objectives and other advantages of the present invention can be realized and obtained by the structures pointed out in the specification, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0032] Figure 1 It is a schematic structural diagram of a wireless coverage system for multi-mode integration of urban rail transit provided by an embodiment of the present invention;

[0033] Figure 2Schematic flowchart of the control method for the wireless coverage system with multi - mode integration in urban rail transit provided by the embodiments of the present invention. Detailed implementation manners

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0035] Figure 1 Schematic structural diagram of the wireless coverage system with multi - mode integration in urban rail transit provided by the embodiments of the present invention. As Figure 1 shown, the wireless coverage system with multi - mode integration in urban rail transit according to the embodiments of the present invention specifically includes a central network management device, a multi - mode integration device in the machine room, a multi - mode integration wireless terminal device, and a full - band antenna that are connected in sequence.

[0036] The central network device is used to configure the data of the types of signal sources required by the multi - mode integration wireless terminal device, and collect the working status and fault information of the multi - mode integration device in the machine room and the multi - mode integration wireless terminal device.

[0037] Among them, the management module in the multi - mode integration device in the machine room collects the working status and fault information of the multi - mode integration device in the machine room, and transmits it to the central network management device through the three - layer switching module in the multi - mode integration device in the machine room. The management module in the multi - mode integration wireless terminal device collects the working status and fault information of the multi - mode integration wireless terminal device, and transmits it to the three - layer switching module in the multi - mode integration device in the machine room through the three - layer switching module in the multi - mode integration wireless terminal device, and then transmits it to the central network management device.

[0038] The multi - mode integration device in the machine room is used to receive external signal sources, digitize the external signal sources, and at the same time send the digitized signals to the multi - mode integration wireless terminal device.

[0039] Specifically, the multi - mode integration device in the machine room at least includes a radio frequency signal digital conversion module and a three - layer switching module that are connected to each other; the radio frequency signal digital conversion module is used to receive external signal sources, convert the external signal sources from radio frequency signals into digital signals, and transmit them to the three - layer switching module; the three - layer switching module is used to receive digital signals, pack the digital signals and transmit them to the multi - mode integration wireless terminal device.

[0040] External signal sources may include LTE-RRU signals, TETRA signals, PDT signals, WIFI signals, etc. LTE-RRU signals, TETRA signals, and PDT signals are radio frequency signals, which need to be first converted into digital signals by a radio frequency signal digital conversion module and then transmitted to a three-layer switching module. While WIFI signals are digital signals and are thus directly transmitted to the three-layer switching module.

[0041] The multi-mode fusion device in the computer room further includes a control module, which is connected to the three-layer switching module and is used to summarize the working states of multi-mode fusion wireless terminal devices and send them to the central network device.

[0042] The multi-mode fusion wireless terminal device is used to selectively receive the signals sent by the multi-mode fusion device in the computer room according to the required signal source type data, and at the same time convert the received digital signals into radio frequency signals and transmit them to the full-band antenna.

[0043] Specifically, the multi-mode fusion wireless terminal device includes a three-layer switching module, a digital signal radio frequency conversion module, a management module, and a power supply module.

[0044] The three-layer switching module is respectively connected to the management module and the digital signal radio frequency conversion module, and the power supply module is respectively connected to the management module and the digital signal radio frequency conversion module.

[0045] The three-layer switching module is used to unpack the received digital signals and transmit them to the digital signal radio frequency conversion module.

[0046] The management module is used to send power on / off instructions to the power supply module according to the required signal source type data.

[0047] The power supply module is used to control the digital signal radio frequency conversion module to select and connect the corresponding signal channels according to the power on / off instructions, so as to realize sending the required signal source types to the full-band antenna.

[0048] It should be noted here that the multi-mode fusion device in the computer room always receives multiple radio frequency signals and digital signals, converts the received radio frequency signals into digital signals, and at the same time sends the converted digital signals and the directly received digital signals to the multi-mode fusion wireless terminal device. The digital signal radio frequency module in the multi-mode fusion wireless terminal device selects and disconnects the channels of the signal types according to the control of the power supply module to realize outputting specific types of radio frequency signals to the full-band antenna.

[0049] In this embodiment, the three-layer switching module can be a three-layer switch or an internal three-layer switch board.

[0050] Among them, the multi-mode fusion device in the computer room and the multi-mode fusion wireless terminal device are connected by optical fiber or network cable.

[0051] A full-band antenna is used to receive radio frequency signals emitted by a multi-mode integrated wireless terminal device and radiate signals outward.

[0052] In specific applications, there are multiple full-band antennas, and the multiple full-band antennas are arranged at intervals.

[0053] There is a one-to-one correspondence between the multi-mode integrated wireless terminal device and the full-band antenna, that is, each multi-mode integrated wireless terminal device is connected to one full-band antenna.

[0054] Among them, the full-band antenna is connected to the multi-mode integrated wireless terminal device through a feeder.

[0055] Figure 2 It is a schematic flowchart of the control method for a multi-mode integrated wireless coverage system in urban rail transit provided by an embodiment of the present invention. As Figure 2 shown, the control method for a multi-mode integrated wireless coverage system in urban rail transit according to an embodiment of the present invention includes:

[0056] Step S101: The central network management device configures the data of the types of signal sources required by the multi-mode integrated wireless terminal device;

[0057] Step S102: The multi-mode integrated device in the machine room receives the external signal source, digitizes the external signal source, and at the same time sends the digitized signal to the multi-mode integrated wireless terminal device;

[0058] Step S103: The multi-mode integrated wireless terminal device selectively receives the signal sent by the multi-mode integrated device in the machine room according to the data of the types of signal sources required, and at the same time converts the received digitized signal into a radio frequency signal and transmits it to the full-band antenna;

[0059] Step S104: The full-band antenna receives the radio frequency signal emitted by the multi-mode integrated wireless terminal device and radiates the signal outward.

[0060] It should be noted here that the above multi-mode integrated wireless coverage system in urban rail transit corresponds to steps S101 to S104 of the control method for the multi-mode integrated wireless coverage system in urban rail transit. The examples and application scenarios implemented by the above system and the corresponding steps are the same, but are not limited to the content disclosed in the above embodiments.

[0061] The technical solutions in the embodiments of the present application at least have the following technical effects or advantages:

[0062] It can convert various radio frequency signals into digital signals, and at the same time integrate with WIFI signals through a three-layer switching module to achieve unified output of digital optical signals. The digital optical signals are connected to multi-mode integrated wireless terminal devices through a wired link. The multi-mode integrated wireless terminal converts the digital optical signals into various required wireless signals of different modes, and realizes multi-mode integrated wireless coverage through multi-band antennas. The present invention avoids complex wireless link budgets, improves the deployment efficiency of urban rail transit wireless systems, and solves the problems of resource waste and messy arrangement of equipment terminals caused by repeated construction of urban rail transit wireless systems.

[0063] Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A wireless coverage system for the multi-modal integration of urban rail transit, characterized in that, It includes a central network management device, a multi-mode fusion device in the computer room, a multi-mode fusion wireless terminal device, and a full-band antenna connected in sequence; The central network management device is used to configure the data of the types of signal sources required by the multi-mode fusion wireless terminal device; The multi-mode fusion device in the computer room is used to receive external signal sources, digitize the external signal sources, and at the same time send the digitized signals to the multi-mode fusion wireless terminal device; The multi-mode fusion wireless terminal device is used to selectively receive the signals sent by the multi-mode fusion device in the computer room according to the data of the types of signal sources required, and at the same time convert the received digitized signals into radio frequency signals and transmit them to the full-band antenna; The full-band antenna is used to receive the radio frequency signals sent by the multi-mode fusion wireless terminal device and radiate signals outward.

2. The wireless coverage system for multi-modal integration of urban rail transit according to claim 1, characterized in that The multi-mode fusion wireless terminal device includes a three-layer switching module, a digital signal radio frequency conversion module, a management module, and a power supply module; The three-layer switching module is respectively connected to the management module and the digital signal radio frequency conversion module, and the power supply module is respectively connected to the management module and the digital signal radio frequency conversion module; The three-layer switching module is used to unpack the received digitized signals and transmit them to the digital signal radio frequency conversion module; The management module is used to send a power on / off command to the power supply module according to the data of the types of signal sources required; The power supply module is used to control the digital signal radio frequency conversion module to select and connect the corresponding signal channels according to the power on / off command, so as to realize sending the required types of signal sources to the full-band antenna.

3. The wireless coverage system for multi-mode integration of urban rail transit according to claim 1, wherein, The multi-mode fusion device in the computer room at least includes a radio frequency signal digital conversion module and a three-layer switching module connected to each other; The radio frequency signal digital conversion module is used to receive the external signal source and convert the external signal source from a radio frequency signal into a digital signal and transmit it to the three-layer switching module; The three-layer switching module is used to receive the digital signal and transmit it to the multi-mode fusion wireless terminal device.

4. The wireless coverage system for multi-modal integration of urban rail transit according to claim 3, wherein, The multi-mode fusion device in the computer room further includes a control module, and the control module is connected to the three-layer switching module and is used to summarize the working states of the multi-mode fusion wireless terminal devices.

5. The wireless coverage system for multi-modal integration of urban rail transit according to claim 2 or 3, characterized in that, The three-layer switching module can be a three-layer switch or an internal three-layer switch board.

6. The wireless coverage system for multi-modal integration of urban rail transit according to claim 1, characterized in that, The multi-mode fusion wireless terminal devices and the full-band antennas are in one-to-one correspondence.

7. The wireless coverage system for multi-modal integration of urban rail transit according to claim 1, wherein Each of the full-band antennas can radiate multiple different types of radio frequency signals.

8. The wireless coverage system for multi - mode integration of urban rail transit according to claim 1, characterized in that, There are multiple full-band antennas, and the multiple full-band antennas are arranged at intervals.

9. The wireless coverage system for multi-modal integration of urban rail transit according to claim 1, characterized in that The central network management device is also used to collect the working states and fault information of the multi-mode fusion device in the computer room and the multi-mode fusion wireless terminal devices.

10. The control method of the wireless coverage system for multi-modal integration of urban rail transit is characterized in that, It includes: The central network management device configures the data of the types of signal sources required by the multi-mode fusion wireless terminal device; The multi-mode fusion device in the computer room receives the external signal source, digitizes the external signal source, and at the same time sends the digitized signal to the multi-mode fusion wireless terminal device; The multi-mode integrated wireless terminal device selectively receives the signals sent by the multi-mode integrated device in the computer room according to the required signal source type data, and at the same time converts the received digital signals into radio frequency signals and transmits them to the all-band antenna; The all-band antenna receives the radio frequency signals sent by the multi-mode integrated wireless terminal device and radiates signals outward.

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