Cable-free turnout state on-line monitoring system

Abstract

The invention relates to a cable-free turnout state on-line monitoring system. The monitoring system comprises a monitoring host and a plurality of sensing units which are installed on a turnout and used for monitoring the turnout state. The monitoring host comprises a signal receiving module and an electric energy electromagnetic wave transmitting module; the sensing unit comprises a sensing unit, a signal transmitting module and an electric energy electromagnetic wave receiving module; the monitoring host wirelessly charges the sensing unit in a long distance through the electric energy electromagnetic wave transmitting module and the electric energy electromagnetic wave receiving module which are matched with each other. Turnout state parameters collected by the sensing unit are received through mutually matched signal receiving and sending modules. Compared with the prior art, the turnout state on-line monitoring system provided by the invention can continuously monitor the state of a single turnout on line, and also can movably monitor the states of different turnouts.

Description

Technical Field

[0001] The present invention relates to the technical field of railway turnout status monitoring, and in particular to a cable-free turnout status online monitoring system. Background Art

[0002] Switches guide trains between different tracks and are crucial railway infrastructure. Currently, switch maintenance is primarily performed by operators and maintenance personnel through routine inspections, which requires a large number of personnel and a high workload. Therefore, new technologies are urgently needed to reduce the labor intensity of manual inspection and maintenance.

[0003] The turnout monitoring system currently used by railway electrical departments monitors parameters such as switching current, switching power, and switch indication gap, helping to analyze turnout status and guide turnout maintenance. Further monitoring is needed for additional turnout status parameters, including contact, travel, vibration, frame, switching force, locking force, locking amount, and creep.

[0004] Patent CN112550369A discloses an online turnout status monitoring system that monitors parameters such as turnout contact, opening, creep, and frame. However, it uses external cables for power supply, resulting in high system cost and a long installation time. It can only be used for monitoring a single turnout. Patents CN117125112A and CN 118144844 A disclose detachable turnout status detection systems that use wireless transmission between devices, reducing some installation workload. They are battery-powered and use solar panels as a supplementary energy source. They can be used portably to measure multiple groups of turnsouts. However, they still use cables for power supply and signal transmission between sensors and acquisition equipment, resulting in a large installation workload and a short battery-powered operating time. Summary of the Invention

[0005] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and provide a cable-free on-line monitoring system for turnout status.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] A cable-free on-line monitoring system for turnout status, comprising a monitoring host and a plurality of sensing units installed on the turnout for monitoring the turnout status;

[0008] The monitoring host includes a signal receiving module and an electric energy electromagnetic wave transmitting module; the sensing unit includes a sensing unit, a signal sending module and an electric energy electromagnetic wave receiving module;

[0009] The monitoring host wirelessly charges the sensing unit over a long distance through mutually matched electric energy electromagnetic wave transmitting and receiving modules; and receives the switch status parameters collected by the sensing unit through mutually matched signal receiving and sending modules.

[0010] As a preferred technical solution, the monitoring host further includes: a first microprocessor, a first power chip, and a storage unit;

[0011] The first microprocessor is signal-connected to the signal receiving module, the electric energy electromagnetic wave transmitting module and the storage unit respectively;

[0012] The first power chip is connected to an external power supply, and converts 220V AC power into the power supply voltage corresponding to each module in the monitoring host and supplies power to each module.

[0013] As an optimal technical solution, the electric energy electromagnetic wave transmission module includes a transmitting unit connected to the first microprocessor and the first power supply chip, and a transmitting antenna connected to the transmitting unit; the transmitting antenna adopts a microstrip array antenna to emit the signal generated by the transmitting unit into space through electromagnetic wave energy.

[0014] As a preferred technical solution, the transmitting frequency of the transmitting antenna is 2.4 GHz.

[0015] As a preferred technical solution, the signal receiving module includes a first communication unit connected to the first microprocessor and the first power chip, and a first communication antenna connected to the first communication unit.

[0016] As a preferred technical solution, the perception unit further includes a second microprocessor, which is signal-connected to the sensing unit and the signal sending module respectively;

[0017] The electric energy electromagnetic wave receiving module receives the high-frequency electric energy electromagnetic waves emitted by the electric energy electromagnetic wave transmitting module, and provides power for the second microprocessor, the sensing unit and the signal sending module.

[0018] As a preferred technical solution, the electric energy electromagnetic wave receiving module includes a second power chip, a battery, a rectifying and charging unit, and a receiving antenna connected in sequence;

[0019] The receiving antenna receives the electric energy electromagnetic waves emitted by the electric energy electromagnetic wave transmitting module, and charges the battery after rectification and conversion through the rectifying and charging unit; the output of the battery is converted into the power supply voltage corresponding to each module in the sensing unit through the second power chip, providing power for the second microprocessor, the sensing unit and the signal sending module respectively.

[0020] As a preferred technical solution, the signal sending module includes a second communication unit and a second communication antenna;

[0021] The second communication unit is connected to the second communication antenna and is used to send the detection status parameter data collected by the sensor unit to the monitoring host.

[0022] As an optimal technical solution, the sensing unit includes a displacement sensor, a vibration sensor and a stress sensor, and the collected state parameter data include turnout close contact, opening distance, vibration, frame, conversion force, locking force, locking amount and creep.

[0023] As a preferred technical solution, the monitoring system further includes an operation terminal connected to the monitoring host via a wireless communication network, so that operation and maintenance personnel can access monitoring status information from the operation terminal.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] This invention proposes a cable-free online switch status monitoring system. This system eliminates cables between devices and between devices and sensors, significantly reducing system installation workload and facilitating installation and removal. It can monitor the status of a single switch continuously online, as well as monitor the status of different switches on the move. Furthermore, the sensing unit is wirelessly recharged, with an internal battery used for energy conversion, resulting in a compact device and greater flexibility. This system can monitor the status of a single switch continuously online, as well as monitor the status of different switches on the move. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a structural schematic diagram of a cable-free on-line switch status monitoring system according to the present invention;

[0027] Figure 2 This is a schematic diagram of the monitoring host composition in the present invention;

[0028] Figure 3 Schematic diagram of the composition of the sensing unit in the present invention;

[0029] The numbers in the figure are as follows: 1. Monitoring host, 11. First microprocessor, 12. First power chip, 13. Transmitting unit, 14. Transmitting antenna, 15. First communication unit, 16. First communication antenna, 17. Storage unit, 2. Sensing unit, 21. Second microprocessor, 22. Sensing unit, 23. Second power chip, 24. Battery, 25. Rectifier charging unit, 26. Receiving antenna, 27. Second communication unit, 28. Second communication antenna. DETAILED DESCRIPTION

[0030] 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.

[0031] Example 1

[0032] The present invention proposes a cable-free online switch status monitoring system, which consists of a monitoring host 1 arranged at the trackside, a number of sensing units 2 installed on the switch for monitoring the switch status, and an operation terminal for operation and maintenance personnel to access the monitoring status information.

[0033] like Figure 1 As shown, this embodiment is explained by taking a two-machine traction turnout as an example. A pair of sensing units 2 are installed at the bottom of each base rail at the two point rail traction points. A monitoring host 1 is installed next to the turnout. In addition, the required type of sensors can be installed at other positions of the turnout according to the status of the monitored turnout. Wireless communication methods such as WLAN, Bluetooth, and mobile communication are used for data transmission between all sensing units 2 and the monitoring host 1. The sensing unit 2 monitors the turnout status data and transmits it to the monitoring host 1 through the wireless network. The turnout monitoring host 1 receives the data from nearby sensors, stores, processes and analyzes them, and presents them to the user through the operation terminal.

[0034] like Figure 2 As shown, the monitoring host 1 internally includes a first microprocessor 11, a first power chip 12, a transmitter unit 13, a transmitter antenna 14, a first communication unit 15, a first communication antenna 16, and a storage unit 17. The first microprocessor 11 is signal-connected to the transmitter unit 13, the first communication unit 15, and the storage unit 17. The first power chip 12 receives an external 220V AC power supply, converts it into the corresponding supply voltage for each module, and supplies power to the first microprocessor 11, the transmitter unit 13, the first communication unit 15, and the storage unit 17. The transmitter unit 13 is control-connected to the transmitter antenna 14, converting the power supply into high-frequency electromagnetic waves that are transmitted into space. The first communication unit 15 is connected to the first communication antenna 16 to receive the detection parameter data sent by the sensing unit 2.

[0035] like Figure 3As shown, the sensing unit 2 includes a second microprocessor 21, a sensing unit 22, a second power chip 23, a battery 24, a rectifier and charging unit 25, a receiving antenna 26, a second communication unit 27, and a second communication antenna 28. The second microprocessor 21 is signal-connected to the sensing unit 22 and the second communication unit 27. The receiving antenna 26 is used to receive electromagnetic waves from the transmitting antenna 14 and, after rectification and conversion by the rectifier and charging unit 25, charges the battery 24. The output of the battery 24 is converted into corresponding supply voltages for each module via the second power chip 23, providing power to the second microprocessor 21, the sensing unit 22, and the second communication unit 27. The sensing unit 22 is equipped with the required sensor type based on the switch status parameters to be monitored. These can be displacement sensors, vibration sensors, and stress sensors. The collected data includes, but is not limited to, switch status parameters such as contact, opening distance, vibration, frame, switching force, locking force, locking amount, and creep, enabling comprehensive monitoring of the switch's operational status. The second communication unit 27 is connected to the second communication antenna 28 and is used to send the collected detection status parameter data to the monitoring host 1.

[0036] The monitoring host 1 continuously transmits high-frequency electromagnetic waves through its transmitting antenna 14, wirelessly charging the nearby sensing unit 2 over long distances. The sensing unit 2 receives the electromagnetic waves from its receiving antenna 26, rectifies them through the rectifier-charging unit 25, and then charges its internal battery 24. Specifically, the monitoring host 1 receives 220V AC power, which is converted by the power chip 12 into the corresponding supply voltage for each module. The transmitting antenna 14 of the monitoring host 1 is a microstrip array antenna, which transmits the signal generated by the transmitting unit 13 into space through electromagnetic wave energy. The transmission frequency is 2.4 GHz and the transmission power is 5 W. The receiving antenna 26 of the sensing unit 2 is also a microstrip array antenna. It receives the electromagnetic waves emitted by the transmitting antenna 14 and converts them into high-frequency electrical energy, which is then transmitted to the rectifier-charging unit 25. The rectifier-charging unit 25 converts the 2.4 GHz high-frequency electrical signal into DC voltage to charge the battery 24, thus ensuring uninterrupted operation of the sensing unit 2. The sensing unit 2 is wirelessly charged, and the internal battery 24 is used for energy conversion, resulting in a compact device and greater flexibility. There are no cables between the devices or between the devices and sensors in the turnout status monitoring system, which significantly reduces the system installation workload and facilitates installation and removal. It can not only continuously monitor the status of a single turnout online, but also monitor the status of different turnouts on the move.

[0037] When the online monitoring system is running, the sensing unit 2 collects the static data of the turnout and the dynamic data of the sensors during turnout conversion and turnout passing, and transmits the relevant data to the monitoring host 1; the monitoring host 1 receives, processes and saves the dynamic and static status information transmitted by the sensing unit 2, analyzes the dynamic and static status information of each traction point of the turnout received, and provides maintenance guidance.

[0038] The operating terminal can be a desktop computer, mobile computer, tablet computer, mobile phone, or other device. It connects to the monitoring host 1 via a wireless communication network such as WLAN, Bluetooth, or mobile communication. Switch operation and maintenance personnel access monitoring status information and maintenance instructions from the operating terminal, allowing them to perform maintenance operations and verify the results of the operations.

[0039] Furthermore, the portable railway turnout detection system proposed by the present invention can be dismantled after completing the monitoring purpose, and can also continuously monitor the operating status of a certain turnout.

[0040] 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 through logical analysis, reasoning, or limited experimentation based on the concepts of the present invention and the prior art should be within the scope of protection defined by the claims.

Claims

1. A cable-free on-line monitoring system for turnout status, characterized in that: The monitoring system comprises a monitoring host (1) and a plurality of sensing units (2) installed on the turnout for monitoring the turnout status; The monitoring host (1) includes a signal receiving module and an electric energy electromagnetic wave transmitting module; the sensing unit (2) includes a sensing unit (22), a signal sending module and an electric energy electromagnetic wave receiving module; The monitoring host (1) wirelessly charges the sensing unit (2) over a long distance through mutually matched electric energy electromagnetic wave transmitting and receiving modules; and receives the switch state parameters collected by the sensing unit (2) through mutually matched signal receiving and sending modules.

2. A cable-free on-line switch status monitoring system according to claim 1, characterized in that: The monitoring host (1) further includes: a first microprocessor (11), a first power chip (12), and a storage unit (17); The first microprocessor (11) is signal-connected to the signal receiving module, the electric energy electromagnetic wave transmitting module, and the storage unit (17) respectively; The first power chip (12) is connected to an external power supply, and converts 220V AC power into a power supply voltage corresponding to each module in the monitoring host (1) and supplies power to each module.

3. The cable-free on-line switch status monitoring system according to claim 2, characterized in that: The electric energy electromagnetic wave transmitting module comprises a transmitting unit (13) connected to a first microprocessor (11) and a first power chip (12), and a transmitting antenna (14) connected to the transmitting unit (13); the transmitting antenna (14) adopts a microstrip array antenna and emits the signal generated by the transmitting unit (13) into space through electromagnetic wave energy.

4. The cable-free on-line switch status monitoring system according to claim 3, characterized in that: The transmitting antenna (14) has a transmitting frequency of 2.4 GHz.

5. The cable-free on-line switch status monitoring system according to claim 2, characterized in that: The signal receiving module comprises a first communication unit (15) connected to a first microprocessor (11) and a first power chip (12), and a first communication antenna (16) connected to the first communication unit (15).

6. The cable-free on-line switch status monitoring system according to claim 1, characterized in that: The sensing unit (2) further comprises a second microprocessor (21) therein, and the second microprocessor (21) is respectively connected to the sensing unit (22) and the signal sending module; The electric energy electromagnetic wave receiving module receives high-frequency electric energy electromagnetic waves emitted by the electric energy electromagnetic wave transmitting module, and provides power for the second microprocessor (21), the sensing unit (22) and the signal sending module.

7. The cable-free on-line switch status monitoring system according to claim 6, characterized in that: The electric energy electromagnetic wave receiving module comprises a second power chip (23), a battery (24), a rectifying and charging unit (25), and a receiving antenna (26) which are connected in sequence; The receiving antenna (26) receives the electric energy electromagnetic waves emitted by the electric energy electromagnetic wave transmitting module and charges the battery (24) after rectification and conversion by the rectifying and charging unit (25); the output of the battery (24) is converted into the power supply voltage corresponding to each module in the sensing unit (2) through the second power chip (23), and provides power for the second microprocessor (21), the sensing unit (22) and the signal sending module respectively.

8. The cable-free on-line switch status monitoring system according to claim 6, characterized in that: The signal sending module includes a second communication unit (27) and a second communication antenna (28); The second communication unit (27) is connected to the second communication antenna (28) and is used to send the detection status parameter data collected by the sensor unit (22) to the monitoring host (1).

9. The cable-free on-line switch status monitoring system according to claim 6, characterized in that: The sensing unit (22) includes a displacement sensor, a vibration sensor and a stress sensor, and the collected state parameter data include turnout close contact, opening distance, vibration, frame, conversion force, locking force, locking amount and creep.

10. The cable-free on-line switch status monitoring system according to claim 1, characterized in that: The monitoring system also includes an operation terminal connected to the monitoring host (1) via a wireless communication network, so that operation and maintenance personnel can access monitoring status information from the operation terminal.

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