Straddle type monorail vehicle antenna anti-leakage and detection alarm structure

Abstract

The utility model discloses a straddle type monorail vehicle antenna anti-leakage and detection alarm structure, a monorail vehicle comprises an external device and a device wire harness, and the external device is fixedly installed on a vehicle body through an installation base; the equipment wire harness penetrates through the through holes of the mounting base and the vehicle body top plate to enter the vehicle body; the upper surface of the mounting base is provided with an annular water retaining ring structure which takes the center of a through hole through which the equipment wire harness passes as the center of a circle. By the adoption of the technical scheme, the reliability and sensitivity of the waterproof and detection alarm structure are greatly improved, the supplementary waterproof effect is achieved when slight leakage happens to a vehicle, an alarm can be given out immediately, a worker can take measures rapidly for treatment, and the working efficiency is improved. Therefore, larger faults caused by further deterioration of the leakage problem are avoided, and the method is of great significance in guaranteeing long-term stable operation of equipment outside the vehicle and the vehicle.

Description

Technical Field

[0001] The utility model belongs to the technical field of operation safety of straddle-type monorail vehicles, and more specifically relates to an antenna anti-leakage and detection alarm structure for straddle-type monorail vehicles. Background Art

[0002] Straddle-type monorail vehicles differ significantly from typical urban subways. Operating on elevated, open-air tracks, they are fully exposed to a variety of climatic conditions and susceptible to natural factors such as wind, rain, and temperature and humidity fluctuations. Straddle-type monorail vehicles are designed with antennas mounted outside the vehicle and connected to other onboard equipment via electrical wiring harnesses. Although a waterproof mounting structure is employed, gaps left during installation or failure of the waterproof design due to aging can allow water droplets to seep into the vehicle, potentially causing vehicle failure. After the antenna is installed, a hole must be drilled in the vehicle body to route wiring to the onboard equipment. This hole is hidden behind the vehicle's roof, making leaks difficult to detect in a timely manner.

[0003] The problems and defects of the prior art are:

[0004] While waterproofing is often employed to prevent water infiltration when installing external equipment, there are still two significant risks in actual operation. First, new waterproof structural designs have not been verified in actual applications, so it is impossible to determine whether they are truly effective in waterproofing. This uncertainty poses a hidden danger to the long-term stable operation of the equipment.

[0005] Secondly, even those waterproof designs that have been verified and believed to be able to play a waterproof role will gradually reduce their waterproof performance or even completely fail during long-term operation due to factors such as material aging and environmental erosion. What is more serious is that when such waterproof failure occurs, it is usually accompanied by more serious hidden dangers of failure, posing a great threat to the normal operation and safety of the equipment.

[0006] Using keywords such as "straddle type; antenna; waterproof" to search existing public technical literature, the following search results were obtained:

[0007] 1. Chinese patent document: "Online Monorail Pantograph Monitoring System", patent (application) number: 201310096938.3; the technical solution described therein is:

[0008] "Online monorail pantograph monitoring system, comprising a detection box arranged on the rail, a bent contact wire, a PLC, a dual ultrasonic detection device, a photoelectric switch, a lateral contact pressure measuring device, a pantograph detection device, and an automatic opening and closing protective door";

[0009] The technical effects recorded are:

[0010] "The structural design is ingenious and reasonable. The dual ultrasonic probe design effectively prevents the erroneous extraction of vehicle information, avoids misjudgment, and ensures the smooth operation and safety of rail transit. The curved contact line adopts a curved structure design, which facilitates a clearer, more intuitive and accurate determination of the wear of the slide. The entire detection process of the lateral contact pressure measuring device is fast and flexible, which improves the measurement accuracy and stability of the product as a whole. The automatic opening and closing protective door can open or close the detection window, and achieve waterproof and dustproof effects on the basis of ensuring that the detection equipment's detection field of view is not blocked during operation, thereby ensuring the normal operation of the detection equipment."

[0011] 2. Chinese patent document: "A straddle-type monorail antenna mounting structure", patent (application) number: 202221514649.1; the technical solution described therein is:

[0012] "A straddle-type monorail antenna mounting structure, comprising a fixing rod, a feeder, and a directional antenna; the fixing rod is fixedly connected to a first steel truss girder of the straddle-type monorail bridge structure, the fixing rod is fixedly connected to a second steel truss girder of the straddle-type monorail bridge structure, the first steel truss girder being disposed below the second steel truss girder; the feeder is disposed on the fixing rod, the feeder is disposed above the second steel truss girder, and the feeder is fixedly connected to the fixing rod by bolts; the directional antenna is fixedly disposed on the fixing rod, and the directional antenna is connected to the feeder."

[0013] The technical effects recorded are:

[0014] "By fixing the fixing rods to the straddle-type monorail bridge structure, we effectively avoid the problem of constructing external frames on both sides of the cap beam and fixing the LTE antenna on the external frames on both sides of the cap beam, which greatly reduces the difficulty of construction."

[0015] However, the technical solutions recorded in the above-mentioned technical documents and the related technical solutions currently in public application have not been able to solve the problems and defects of the existing technology, such as "poor waterproof and anti-leakage performance and serious potential fault hazards". Utility Model Content

[0016] The utility model provides a straddle-type monorail vehicle antenna anti-leakage and detection alarm structure, which aims to improve the anti-leakage effect.

[0017] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0018] The utility model relates to a straddle-type monorail vehicle antenna anti-leakage and detection alarm structure. The monorail vehicle includes off-board equipment and equipment wiring harnesses. The off-board equipment is fixedly mounted on the vehicle body via a mounting base. The equipment wiring harnesses pass through through holes in the mounting base and the vehicle body roof to enter the vehicle body. An annular water retaining ring structure is provided on the upper surface of the mounting base, with the center of the through hole through which the equipment wiring harness passes as the center of the circle.

[0019] The water retaining ring structure and the mounting base are an integral structure.

[0020] A sealing surface is formed at the connection between the external vehicle equipment and the mounting base; a humidity sensor is arranged between the water retaining ring structure and the sealing surface.

[0021] The humidity sensor is connected to the train management system through a signal circuit.

[0022] The signal circuit connecting the humidity sensor to the train management system and the equipment harness are integrated into a vehicle body bus harness at a position passing through the vehicle body roof.

[0023] The train management system sets a maximum humidity threshold.

[0024] A sealing gasket is provided between the sealing surfaces.

[0025] The humidity sensor uses a high-precision AD converter to convert weak analog signals into digital signals.

[0026] The humidity sensor adopts a capacitive or resistive sensor, which reflects the change of humidity through the change of capacitance value or resistance value of the medium.

[0027] In order to achieve the same invention purpose as the above technical solution, the present invention also provides a detection and alarm method for the above-mentioned straddle-type monorail vehicle antenna anti-leakage and detection and alarm structure, and its technical solution is that the detection and alarm method is:

[0028] When a train is exposed to water leakage, changes in ambient humidity will cause the physical properties of the humidity sensor's detection element to change, resulting in changes in its capacitance or resistance value. This change is converted into an analog electrical signal.

[0029] A high-precision AD converter is used to convert weak analog electrical signals into digital electrical signals. This digital information is then quickly transmitted to the train management system via the train's control bus.

[0030] After receiving the signal, the train management system uses preset algorithms and logical judgments to quickly analyze the humidity anomaly;

[0031] Once the train management system confirms a water leak, it immediately sends an alert to the operation and maintenance monitoring platform and the onboard staff monitoring panel via wireless communication technology.

[0032] The train's operations and maintenance staff responded quickly, placing the train into maintenance mode and promptly repairing the waterproofing function;

[0033] During this period, the water retaining ring structure effectively intercepted the continued leakage of liquid, serving as a key temporary protective measure to ensure that the leakage did not affect the important systems of the train until it was repaired.

[0034] The utility model adopts the above-mentioned technical solution, and the reliability and sensitivity of its waterproof and detection alarm structure are greatly improved. It plays a supplementary waterproofing effect when a slight leakage occurs in the vehicle, and can immediately issue an alarm so that the staff can quickly take measures to deal with it, thereby avoiding further deterioration of the leakage problem and causing a larger fault. It is of great significance for ensuring the long-term stable operation of external equipment and vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The contents shown in the accompanying drawings and the symbols in the drawings are briefly described as follows:

[0036] Figure 1 It is a structural diagram of the utility model;

[0037] Figure 2 This is a flowchart of the detection alarm method of the present utility model.

[0038] The following are marked in the figure:

[0039] 1. External equipment, 2. Mounting base, 3. Equipment wiring harness, 4. Water retaining ring structure, 5. Humidity sensor, 6. Sealing gasket, 7. Vehicle body. DETAILED DESCRIPTION

[0040] The following is a further detailed description of the specific implementation methods of the present invention by describing the embodiments with reference to the accompanying drawings, so as to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention.

[0041] like Figure 1 The structure of the present invention is a leakage prevention and detection alarm structure for antennas on straddle-type monorail vehicles. The monorail vehicle includes an external device 1 and a device wiring harness 3. The external device 1 is fixedly mounted on the vehicle body 7 via a mounting base 2. The device wiring harness 3 passes through a through-hole in the mounting base 2 and the top plate of the vehicle body 7 and enters the vehicle body 7. This utility model is a novel structure for leakage detection and alarm of external devices on straddle-type monorail vehicles, primarily for detecting and alarming leakage.

[0042] In order to solve the problems existing in the prior art and overcome its defects and achieve the invention purpose of improving the anti-leakage effect, the technical solution adopted by the utility model is:

[0043] like Figure 1 As shown, the anti-leakage and detection alarm structure of the straddle-type monorail vehicle antenna of the present invention is provided with an annular water retaining ring structure 4 on the upper surface of the mounting base 2 with the center of the through hole through which the equipment harness 3 passes as the center of the circle.

[0044] The water retaining ring structure 4 and the mounting base 2 are an integral structure.

[0045] The water retaining ring structure 4 adopted in the above technical solution is to add a water retaining structure on the mounting base 2. This structure is an annular ring structure and is an integral part of the mounting base. It can effectively prevent water from seeping into the wiring harness hole and can provide the final waterproof protection when the waterproof installation design of the equipment fails. Water droplets that leak into the interior from the edge of the equipment will be blocked between the water retaining ring and the equipment casing. Even if leakage occurs, sufficient time can be left for the vehicle to be offline for inspection and maintenance.

[0046] The connection between the external equipment 1 and the mounting base 2 forms a sealing surface; between the water retaining ring structure 4 and the sealing surface, a humidity sensor 5 is provided. The functions of the system can be realized by simply adding the humidity sensor 5 to the original train management system.

[0047] Humidity sensor 5 is installed in Figure 1 At the position shown, when leakage occurs, the humidity sensor 5 located here can transmit the alarm signal to the train management system through the equipment harness 3, thereby realizing rapid offline maintenance of the leakage.

[0048] The humidity sensor 5 is connected to the train management system via a signal circuit.

[0049] The humidity sensor 5 used for detection cooperates with the internal water retaining ring 4. After leakage occurs, it can not only quickly alarm to determine the leakage location, but also provide leakage redundancy for leakage failure, so that there is enough time for maintenance, avoiding the leakage being discovered only after it causes major failure.

[0050] The signal circuit connecting the humidity sensor 5 to the train management system is integrated with the equipment harness 3 into a vehicle body bus harness at a position passing through the vehicle body roof.

[0051] The wiring harness of the humidity sensor 5 is routed into the vehicle together with the wiring harness 3 of the external device, and there is no need to add wiring holes and wiring harness fixing structures, thus simplifying the structure.

[0052] The train management system sets a maximum humidity threshold. Once the humidity sensor 5 detects that the humidity exceeds the threshold, an alarm is immediately issued, and the instant alarm is pushed to the operation and maintenance monitoring platform and the on-board staff monitoring panel for timely processing.

[0053] A sealing gasket 6 is provided between the sealing surfaces. The sealing gasket 6 is used to improve the sealing effect. The sealing gasket 6 is made of a relatively flexible material to overcome the unevenness of the relative sealing surfaces and the resulting gaps that affect the sealing effect.

[0054] The humidity sensor 5 uses a high-precision AD converter to convert weak analog signals into digital signals. Digital signals are easy to process, have faster transmission speeds, and improve anti-interference capabilities to avoid the influence of the external environment.

[0055] The humidity sensor 5 is a capacitive or resistive sensor, which reflects the change of humidity through the change of capacitance or resistance of the medium.

[0056] like Figure 2 As shown:

[0057] In order to achieve the same invention purpose as the above technical solution, the present invention also provides a detection and alarm method for the above-mentioned straddle-type monorail vehicle antenna anti-leakage and detection and alarm structure, and its technical solution is that the detection and alarm method is:

[0058] When a train is exposed to water leaks, its built-in safety protection mechanism is activated immediately. The core of this system is the application of humidity sensor 5 technology, which works based on capacitance or resistance principles. Changes in ambient humidity cause changes in the physical properties of the humidity sensor 5's detection element, such as changes in capacitance or resistance. This change is converted into an analog electrical signal.

[0059] A high-precision AD converter is used to convert weak analog electrical signals into digital electrical signals. This digital information is then quickly transmitted to the train management system via the train's control bus.

[0060] After receiving the signal, the train management system uses preset algorithms and logical judgments to quickly analyze the humidity anomaly;

[0061] Once the train management system confirms a water leak, it immediately sends an alert to the operation and maintenance monitoring platform and the onboard staff monitoring panel via wireless communication technology.

[0062] The train's operations and maintenance staff responded quickly, placing the train into maintenance mode and promptly repairing the waterproofing function;

[0063] During this period, the water retaining ring structure 4 effectively intercepted the continuous leakage of liquid, serving as a key temporary protective measure to ensure that the leakage did not affect the important systems of the train until it was repaired.

[0064] This new design features low manufacturing costs, a simple, flexible, and reliable structure. It immediately issues an alarm when a water leak occurs on a train, and the addition of a water retaining structure provides a certain degree of leakage redundancy, allowing the train to be taken offline for repairs within a certain timeframe after a leak occurs. This low-cost, highly reliable fixed structural belt improves the economic efficiency and safety of vehicle system operations.

[0065] The above is an exemplary description of the present invention in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A straddle-type monorail vehicle antenna leakage prevention and detection alarm structure, the monorail vehicle comprising an off-board device (1) and an equipment wiring harness (3), the off-board device (1) being fixedly mounted on a vehicle body (7) via a mounting base (2); the equipment wiring harness (3) passing through a through hole in the mounting base (2) and a top plate of the vehicle body (7) and entering the vehicle body (7); characterized in that: On the upper surface of the mounting base (2), an annular water retaining ring structure (4) is provided, with the center of the through hole through which the equipment harness (3) passes as the center of the circle.

2. The anti-leakage and detection alarm structure for the straddle-type monorail vehicle antenna according to claim 1, characterized in that: The water retaining ring structure (4) and the mounting base (2) are an integral structure.

3. The anti-leakage and detection alarm structure for the straddle-type monorail vehicle antenna according to claim 1, characterized in that: A sealing surface is formed at the connection between the external vehicle equipment (1) and the mounting base (2); and a humidity sensor (5) is provided between the water retaining ring structure (4) and the sealing surface.

4. The anti-leakage and detection alarm structure for the straddle-type monorail vehicle antenna according to claim 3, characterized in that: The humidity sensor (5) is connected to the train management system via a signal circuit.

5. The anti-leakage and detection alarm structure for the straddle-type monorail vehicle antenna according to claim 4, characterized in that: The humidity sensor (5) is connected to a signal circuit of a train management system and is integrated with an equipment harness (3) into a vehicle body bus harness at a position passing through a vehicle body roof.

6. The anti-leakage and detection alarm structure for the straddle-type monorail vehicle antenna according to claim 4, characterized in that: The train management system sets a maximum humidity threshold.

7. The anti-leakage and detection alarm structure for the straddle-type monorail vehicle antenna according to claim 3, characterized in that: A sealing gasket (6) is provided between the sealing surfaces.

8. The anti-leakage and detection alarm structure for the straddle-type monorail vehicle antenna according to claim 3, characterized in that: The humidity sensor (5) uses a high-precision AD converter to convert weak analog signals into digital signals.

9. The anti-leakage and detection alarm structure for the straddle-type monorail vehicle antenna according to claim 3, characterized in that: The humidity sensor (5) is a capacitive or resistive sensor, which reflects the change of humidity through the change of capacitance or resistance of the medium.

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