Railway platform field intensity monitoring device in train running process and train

Abstract

The utility model relates to a railway platform field intensity monitoring device in train running and a train, the field intensity monitoring device is arranged in a train CIR, and the field intensity monitoring device comprises a signal coupler arranged between a CIR antenna and a radio station and used for capturing digital talkback wireless communication signals between the train and a base station; the output end of the signal coupler is in signal connection with a field intensity monitoring module, a micro-control unit and an upper computer in sequence. Compared with the prior art, the system can monitor the field intensity of frequency points of a plurality of base stations in real time in the train communication process, and guarantees the reliability of train communication.

Description

Technical Field

[0001] The utility model relates to the technical field of train signal monitoring, in particular to a railway platform field strength monitoring device during a moving train and a train. Background Art

[0002] The railway's 400MHz digital wireless train dispatching communication system will be a crucial communication system for the next generation of railway dispatching. The communication standard is also transitioning from analog to digital. Trains frequently traverse different sections of the railway, necessitating the measurement of field strength at railway platforms along the route to monitor communication signal coverage and the effectiveness of the dispatching system. A locomotive antenna can receive three useful signals at a fixed point, each with varying intensities and channel frequencies. As the train travels, the strength of these three signals varies with the distance between the train and the base station. However, since the radio cannot simultaneously collect and analyze signal strength at other frequencies while transmitting, it cannot guarantee real-time monitoring of communication signals along the route, hindering reliable communication. Utility Model Content

[0003] The purpose of the utility model is to overcome the defects of the above-mentioned prior art and provide a railway platform field strength monitoring device and a train when a train is moving.

[0004] The purpose of the utility model can be achieved through the following technical solutions:

[0005] As a first aspect of the present invention, a device for monitoring the electric field strength of a railway platform during a train movement is provided. The device is arranged inside a CIR of the train and comprises:

[0006] The signal coupler is placed between the CIR antenna and the radio station to capture the digital intercom wireless communication signal between the train and the base station;

[0007] The output end of the signal coupler is sequentially connected to the field intensity monitoring module, the micro control unit and the host computer.

[0008] As an optimal technical solution, the field strength monitoring module is a 400MHz digital intercom wireless signal field strength monitoring module.

[0009] As an optimal technical solution, the field strength monitoring module is a 450MHz digital intercom wireless signal field strength monitoring module.

[0010] As an optimal technical solution, the field strength monitoring module is an 800MHz digital intercom wireless signal field strength monitoring module.

[0011] As a preferred technical solution, one or more field strength monitoring modules are provided.

[0012] As a preferred technical solution, the plurality of field strength monitoring modules are respectively digital intercom wireless signal field strength monitoring modules of different frequency bands.

[0013] As a preferred technical solution, the signal input end of the signal coupler faces the direction of receiving signals and is used to monitor the receiving signal of the train CIR.

[0014] As a preferred technical solution, the signal input end of the signal coupler faces the direction of the transmitted signal and is used to monitor the transmitted signal of the train CIR.

[0015] As an optimal technical solution, signal couplers are provided in both the receiving and transmitting signal directions of the train CIR, and both signal couplers are connected to the field strength monitoring module.

[0016] As a second aspect of the present invention, a train is provided, wherein the CIR of the train is provided with the above-mentioned railway platform field strength monitoring device during train movement.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The utility model installs a digital intercom wireless signal field strength monitoring module between the CIR antenna inside the train CIR and the communication radio station, uses the signal coupling module to receive the downlink signal transmitted by the base station of the 400M digital wireless train modulation system along the railway, and scans the frequency points of each base station through the field strength monitoring module, so as to realize real-time monitoring of the field strength of multiple base station frequencies during the train communication process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the arrangement of a railway platform field strength monitoring device during a moving train according to the utility model;

[0020] Figure 2 This is a schematic structural diagram of a device for monitoring field strength on a railway platform during a moving train according to the present invention;

[0021] The numbers in the figure are as follows: 1. Field strength monitoring device, 11. Signal coupler, 12. Field strength detection module, 13. Micro control unit, 14. Host computer, 2. Train CIR, 21. CIR antenna, 22. Radio station, 3. Base station. DETAILED DESCRIPTION

[0022] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not require further definition or explanation in subsequent drawings.

[0024] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0025] Example 1

[0026] As one of the specific implementation examples of the utility model of a railway platform field strength monitoring device during train movement, Figure 1 As shown, the present invention installs a 400MHz digital intercom wireless signal field strength monitoring module 12 inside the train locomotive integrated wireless communication equipment CIR 2, and uses the CIR antenna 21 to receive the downlink signal transmitted by the 400M digital wireless train modulation system base station 3 along the railway.

[0027] like Figure 2 As shown, the field strength monitoring device 1 is arranged inside the train CIR 2 and consists of a 400MHz digital intercom wireless signal field strength monitoring module 12, an MCU microcontroller unit 13 and a signal coupler 11; the signal coupler is arranged between the CIR antenna and the 400M radio station, and is used to capture the digital intercom wireless communication signal between the train and the base station 3. The output end of the signal coupler is sequentially connected to the field strength monitoring module 12, the microcontroller unit 13 and the host computer 14.

[0028] The following is the working process and principle of the device provided by the utility model:

[0029] 1) A monitoring system is composed of a 400MHz digital intercom wireless signal field strength monitoring module 12, an MCU microcontroller unit 13 and a signal coupler 11;

[0030] 2) Setting the frequency points F1, F2, and F3 to be scanned via the host computer 14;

[0031] 3) The MCU controls the field strength monitoring module 12 to switch channels F1, F2, and F3 in sequence and query the field strength;

[0032] 4) After the three channel inquiries are completed, the scanning results are output to the host computer 14, and the process loops back to step 3).

[0033] Among them, the scanning frequency of the field strength detection module 12 is controlled by the host computer 14 and the MCU microcontroller unit 13 based on the needs. It is a conventional technical manual that can be implemented by technical personnel in this field without creative labor according to the specific field strength detector model. The purpose of the utility model is to provide a multi-frequency signal field strength detection device that can realize train communication signals, and through the hardware and layout of the above-mentioned device, the utility model overcomes the defect that the existing technology cannot monitor the field strength of multiple frequencies in real time during the train communication process.

[0034] Example 2

[0035] As other implementations of the present invention, the implementation scope of the present invention is not limited to querying field strength only, and can also be applied to receiving control signaling blocks CSBK, packet data, voice data, etc.

[0036] The implementation scope of the field strength monitoring module 12 in the present invention is not limited to scanning three channels, and can be freely set in different application scenarios.

[0037] The implementation scope of the field strength monitoring module 12 in the present invention is not limited to being applied to the 400M frequency band, and the field strength monitoring module 12 of the 450M frequency band and the 800M frequency band can also be used.

[0038] The implementation scope of the present invention is not limited to using only one field strength monitoring module 12, and multiple field strength monitoring modules 12 of different frequency bands may also be used to simultaneously monitor the signal field strength of different frequency bands.

[0039] The scope of implementation of the present invention is not limited to directing the signal input end of the signal coupler 11 toward the receiving signal direction to monitor the train CIR 2 receiving signal. The signal input end of the signal coupler 11 can also be directed toward the transmitting signal direction to monitor the train CIR 2 transmitting signal; or signal couplers 11 are provided in both the receiving signal and transmitting signal directions of the train CIR 2, and both signal couplers 11 are connected to the field strength monitoring module 12 to monitor the receiving and transmitting signals of the equipment at the same time.

[0040] Example 3

[0041] As another embodiment of the present invention, the present invention further provides a train having a railway platform field strength monitoring device for a moving train as described in the above embodiment 1 or 2 installed inside a CIR.

[0042] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art based on the concepts of the present invention through logical analysis, reasoning, or limited experimentation based on the existing technology should be within the scope of protection defined by the claims.

Claims

1. A device for monitoring the field strength of a railway platform during a train movement, characterized in that: The field strength monitoring device (1) is arranged inside the train CIR (2) and comprises: A signal coupler (11) is provided between the CIR antenna (21) and the radio station (22) and is used to capture a digital intercom wireless communication signal between the train and the base station; The output end of the signal coupler (11) is sequentially connected to a field intensity monitoring module (12), a micro control unit (13), and a host computer (14).

2. The device for monitoring field strength of a railway platform during a train movement according to claim 1, characterized in that: The field strength monitoring module (12) is a 400MHz digital intercom wireless signal field strength monitoring module.

3. The device for monitoring field strength of a railway platform during a train movement according to claim 1, characterized in that: The field strength monitoring module (12) is a 450MHz digital intercom wireless signal field strength monitoring module.

4. The device for monitoring field strength of a railway platform during a train movement according to claim 1, characterized in that: The field strength monitoring module (12) is an 800MHz digital intercom wireless signal field strength monitoring module.

5. A device for monitoring field strength of a railway platform during a train movement according to any one of claims 2 to 4, characterized in that: One or more field intensity monitoring modules (12) are provided.

6. The device for monitoring field strength of a railway platform during a train movement according to claim 5, characterized in that: The plurality of field strength monitoring modules (12) are respectively digital intercom wireless signal field strength monitoring modules of different frequency bands.

7. The device for monitoring field strength of a railway platform during a moving train according to claim 1, characterized in that: The signal input end of the signal coupler (11) faces the direction of receiving signals and is used to monitor the receiving signal of the train CIR (2).

8. The device for monitoring field strength of a railway platform during a train movement according to claim 1, characterized in that: The signal input end of the signal coupler (11) faces the direction of the transmitted signal and is used to monitor the transmitted signal of the train CIR (2).

9. The device for monitoring field strength of a railway platform during a moving train according to claim 1, characterized in that: Signal couplers (11) are provided in both the receiving signal and transmitting signal directions of the train CIR (2), and both signal couplers (11) are connected to a field strength monitoring module (12).

10. A train, characterized in that: The CIR of the train is provided with a railway platform field strength monitoring device (1) for a moving train as described in any one of claims 1 to 9.

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