Non-contact wireless data transmission detection system and application thereof

Abstract

The invention discloses a non-contact wireless data transmission detection system and application thereof.The detection system comprises a signal acquisition module and a signal receiving module, and the signal acquisition module comprises an electromagnetic detection probe, a signal transmitting and processing unit, a transmitting antenna and a distance sensor; the electromagnetic detection probe is used for collecting an electromagnetic field signal of a to-be-detected object, the distance sensor is used for detecting the distance between the probe and the to-be-detected object, and the transmitting antenna is connected with the distance sensor and the signal transmitting and processing unit; the signal receiving module comprises a receiving antenna in wireless connection with the transmitting antenna and a signal receiving and processing unit, and the signal receiving and processing unit is used for processing signals received by the receiving antenna to obtain a detection result. According to the non-contact wireless data transmission detection system and the application thereof, the electromagnetic detection probe and the signal receiving and processing unit are separated from each other, and the receiving antenna is wirelessly connected with the transmitting antenna, so that simple, quick and efficient non-contact detection can be realized.

Description

Technical Field

[0001] The present invention relates to the technical field of non-destructive testing, and more specifically, to a non-contact wireless data transmission detection system and its application. Background Art

[0002] Magnetic detection technology has a wide range of applications, and is widely used in the fields of power electronics, current detection, and non-destructive testing. The current mainstream non-destructive testing technologies, such as ultrasonic, magnetic particle, magnetic flux leakage, eddy current, etc., are all contact detection, and some are bulky, such as X-rays. In many non-destructive testing application scenarios with large volumes, such as large steel structure buildings such as bridges, steel structure supports of stadiums, ships, large pressure vessels, storage tanks, and strain clamps used to fix transmission lines in the ultra-high voltage lines of the national power grid, which usually have a height of dozens of meters. For the non-destructive testing operations of these steel structure buildings, a large amount of manpower and material resources are required. It takes several days to build scaffolding, and then relevant testing personnel carry instruments to climb up for various testing operations, which is not only time-consuming and laborious, but also the high-altitude operation poses a threat to the personal safety of relevant testing personnel.

[0003] Therefore, there is an urgent need for a non-contact wireless data transmission detection system and its application. Summary of the Invention

[0004] The purpose of the present invention is to provide a non-contact wireless data transmission detection system and its application to solve the above problems in the prior art. The electromagnetic detection probe of the signal acquisition module and the signal reception and processing unit of the signal reception module are separated from each other, and the receiving antenna is wirelessly connected to the transmitting antenna, which can achieve simple, fast, and efficient non-contact detection.

[0005] The present invention provides a non-contact wireless data transmission detection system, which includes:

[0006] A signal acquisition module and a signal reception module, wherein,

[0007] The signal acquisition module includes an electromagnetic detection probe, a signal transmission and processing unit, and a transmitting antenna arranged in sequence. The electromagnetic detection probe is used to collect the magnetic field signal around the object to be measured. The signal transmission and processing unit is used to process the magnetic field signal collected by the electromagnetic detection probe. The electromagnetic detection probe is also connected with a distance sensor for detecting the distance between the electromagnetic detection probe and the object to be measured. The transmitting antenna is respectively connected to the distance sensor and the signal transmission and processing unit for sending the signal processing result of the signal transmission and processing unit and the detected distance of the distance sensor to the signal reception module;

[0008] The signal receiving module includes a receiving antenna and a signal receiving and processing unit. The receiving antenna is wirelessly connected to the transmitting antenna and is used to receive the transmission signal of the transmitting antenna. The signal receiving and processing unit is connected to the receiving antenna and is used to process the signal received by the receiving antenna to obtain the detection result of the object to be measured.

[0009] For the non-contact wireless data transmission detection system as described above, preferably, the signal acquisition module is arranged at a position close to the object to be measured.

[0010] For the non-contact wireless data transmission detection system as described above, preferably, the signal acquisition module is mounted on a movable mounting tool, and the movable mounting tool includes a drone, a robotic gripper, a trolley or a handheld tool.

[0011] For the non-contact wireless data transmission detection system as described above, preferably, the movable mounting tool includes a camera for searching and determining the preliminary position of the object to be measured.

[0012] For the non-contact wireless data transmission detection system as described above, preferably, the transmitting antenna performs wireless data transmission with the receiving antenna through a 3G network, a 4G network, a 5G network, wifi, Bluetooth or LoRa.

[0013] For the non-contact wireless data transmission detection system as described above, preferably, the signal acquisition module further includes a battery unit.

[0014] For the non-contact wireless data transmission detection system as described above, preferably, the distance sensor includes a laser ranging sensor, an ultrasonic ranging sensor or a radar sensor.

[0015] For the non-contact wireless data transmission detection system as described above, preferably, the electromagnetic detection probe includes a Hall sensor, an anisotropic magnetoresistive sensor, a giant magnetoresistive sensor, a tunneling magnetoresistive sensor, an electromagnetic induction coil type sensor or a fluxgate.

[0016] For the non-contact wireless data transmission detection system as described above, preferably, the signal receiving and processing unit includes a host computer.

[0017] The present invention also provides an application of the above non-contact wireless data transmission detection system, which is applied to the real-time fault monitoring of transformers in the UHV power grid of the State Grid, the real-time current monitoring of motors or power equipment, the damage detection of rails, steel pipes or steel plates of high-speed railways or subways, and the damage detection of tall steel structure buildings.

[0018] The present invention provides a detection system for non-contact wireless data transmission and its application. The electromagnetic detection probe of the signal acquisition module and the signal receiving and processing unit of the signal receiving module are separated from each other. The receiving antenna is wirelessly connected to the transmitting antenna. The magnetic detection probe can be independently placed in the fields and occasions that need to be monitored key points. Through signal analysis by the signal receiving and processing unit, real-time monitoring of the detection object is achieved. It has the characteristics of miniaturization, low power consumption, non-contact, and wireless data transmission, and can realize simple, fast, and efficient non-contact detection. It can also be combined with any movable carrying tool such as a drone to realize dynamic movable detection of the object to be measured and achieve fast and convenient scanning detection. Description of the Drawings

[0019] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described below in conjunction with the drawings, where:

[0020] Figure 1 It is a structural block diagram of an embodiment of the detection system for non-contact wireless data transmission provided by the present invention.

[0021] Description of the reference numerals in the drawings: 1 - signal acquisition module, 11 - distance sensor, 12 - electromagnetic detection probe, 13 - signal transmitting and processing unit, 14 - transmitting antenna, 15 - battery unit, 2 - signal receiving module, 21 - receiving antenna, 22 - signal receiving and processing unit, 3 - movable carrying tool. Detailed Embodiments

[0022] Now, various exemplary embodiments of the present disclosure will be described in detail with reference to the drawings. The description of the exemplary embodiments is merely illustrative and in no way limits the present disclosure and its application or use. The present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present disclosure thorough and complete and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that: Unless otherwise specifically stated, the relative arrangements of components and steps, the components of materials, numerical expressions, and numerical values set forth in these embodiments should be construed as merely exemplary and not as limitations.

[0023] The "first", "second", and similar terms used in the present disclosure do not denote any order, quantity, or importance, but are only used to distinguish different parts. Terms such as "including" or "comprising" mean that the elements before the term cover the elements listed after the term and do not exclude the possibility of also covering other elements. Terms such as "upper" and "lower" are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0024] In the present disclosure, when it is described that a specific component is located between a first component and a second component, there may or may not be an intermediate component between the specific component and the first component or the second component. When it is described that a specific component is connected to other components, the specific component may be directly connected to the other components without an intermediate component, or may not be directly connected to the other components but have an intermediate component.

[0025] All terms used in the present disclosure (including technical terms or scientific terms) have the same meaning as understood by those of ordinary skill in the art to which the present disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in a general dictionary, such as those, should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and should not be interpreted in an idealized or overly formal sense, unless specifically defined as such here.

[0026] Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be regarded as part of the specification.

[0027] As Figure 1 shown, the detection system for non-contact wireless data transmission provided in this embodiment includes: a signal acquisition module 1 and a signal reception module 2, where

[0028] The signal acquisition module 1 includes an electromagnetic detection probe 12, a signal transmission processing unit 13, and a transmission antenna 14 arranged in sequence. The electromagnetic detection probe 12 is used to collect the magnetic field signal around the object to be measured. The signal transmission processing unit 13 is used to process the magnetic field signal collected by the electromagnetic detection probe 12. The electromagnetic detection probe 12 is also connected to a distance sensor 11 for detecting the distance between the electromagnetic detection probe 12 and the object to be measured. The transmission antenna 14 is respectively connected to the distance sensor 11 and the signal transmission processing unit 13 for sending the signal processing result of the signal transmission processing unit 13 and the detected distance of the distance sensor 11 to the signal reception module 2;

[0029] The signal reception module 2 includes a reception antenna 21 and a signal reception processing unit 22. The reception antenna 21 is wirelessly connected to the transmission antenna 14 for receiving the transmission signal of the transmission antenna 14. The signal reception processing unit 22 is connected to the reception antenna 21 for processing the signal received by the reception antenna 21 to obtain the detection result of the object to be measured.

[0030] Among them, the signal reception module 2 is located on the ground, and among them, the reception antenna 21 and the signal reception processing unit 22 perform data interaction through a data line.

[0031] Further, the transmitting antenna 14 performs wireless data transmission with the receiving antenna 21 through a 3G network, a 4G network, a 5G network, wifi, Bluetooth, or LoRa.

[0032] In an embodiment of the present invention, the signal acquisition module 1 is disposed at a position close to the object to be measured.

[0033] In another embodiment of the present invention, the signal acquisition module 1 is carried on the movable carrying tool 3. In the present invention, the movable carrying tool 3 includes a drone, a robotic gripper, a cart, or a handheld tool. Among them, the drone can be any flying object such as a drone or an unmanned airship that precisely controls the flight trajectory. The drone is small in size and light in weight (not exceeding 200 grams), can easily carry the signal acquisition module 1 to move, and can realize movable detection of different detection positions.

[0034] Further, the movable carrying tool 3 includes a camera for searching and determining the preliminary position of the object to be measured. In an embodiment of the present invention, first, the camera of the movable carrying tool 3 searches for the preliminary position of the object to be measured, and then the distance sensor 11 detects the precise distance between the electromagnetic detection probe 12 and the object to be measured. After obtaining the optimal detection position, the electromagnetic detection probe 12 starts to detect and collect data. In a specific implementation, the electromagnetic detection probe 12 of the signal acquisition module 1 can be made into different lengths according to requirements and different application scenarios, and can be placed at different parts of the movable carrying tool 3. Exemplarily, the electromagnetic detection probe 12 can be installed on the top, bottom, side, etc. of the drone. It should be noted that the present invention does not specifically limit the type, model of the movable carrying tool 3, the installation position and installation method of the electromagnetic detection probe 12 on the movable carrying tool 3.

[0035] Further, the electromagnetic detection probe 12 can be, for example, a magnetic memory detection probe. The electromagnetic detection probe 12 includes a Hall sensor, an anisotropic magnetoresistive sensor, a giant magnetoresistive sensor, a tunneling magnetoresistive sensor, an electromagnetic induction coil type sensor, or a fluxgate. In the present invention, the electromagnetic detection probe 12 uses a high-precision magnetic sensor. In an embodiment of the present invention, the electromagnetic detection probe 12 can be a single-channel probe or a multi-channel probe, and the present invention does not specifically limit this.

[0036] Furthermore, the distance sensor 11 includes a laser ranging sensor, an ultrasonic ranging sensor, or a radar sensor. Since the strength and quality of the acquisition signal of the electromagnetic detection probe 12 are closely related to the distance (lift-off distance) between the electromagnetic detection probe 12 and the object to be measured, during the acquisition of the magnetic field signal by the electromagnetic detection probe 12, the distance between the electromagnetic detection probe 12 and the object to be measured can be measured by the distance sensor 11, so as to ensure that the signal receiving module 2 can correctly judge the characteristics of the detected material reflected by the detection signal of the electromagnetic detection probe 12.

[0037] Further, the signal receiving and processing unit 22 includes a host computer, which can be a computer, a tablet, etc., and various touch screens. It should be noted that the present invention does not specifically limit the types and models of the electromagnetic detection probe 12, the distance sensor 11, and the signal receiving and processing unit 22.

[0038] Further, the signal transmitting and processing unit 13 is composed of elements such as an adjustable gain operational amplifier, an A / D conversion chip, a digital signal processing chip, and various resistors and capacitors. It should be noted that the present invention does not specifically limit the components and circuit structure of the signal transmitting and processing unit 13. In an embodiment of the present invention, the electromagnetic detection probe 12 and the transmitting antenna 14 can be installed on the signal transmitting and processing unit 13 through pin headers.

[0039] Furthermore, the signal acquisition module 1 further includes a battery unit 15, wherein the battery unit 15 includes a rechargeable battery or a replaceable battery. In an embodiment of the present invention, the battery unit 15 can be charged through a TYPEC interface, or a lithium battery or a lead-acid battery can be used, or a solar panel can be configured for power supply according to requirements.

[0040] Correspondingly, the present invention also provides an application of the above non-contact wireless data transmission detection system, which is applied to the real-time fault monitoring of transformers in the ultra-high voltage power grid of the State Grid, the real-time current monitoring of motors or power equipment, the damage detection of railway tracks, steel pipes or steel plates of high-speed trains or subways, and the damage detection of tall steel structure buildings such as bridges.

[0041] Specifically, in the application of real-time fault monitoring of transformers in the UHV power grid of State Grid, since the voltage of the UHV power grid is often as high as several hundred kilovolts, UHV transformers work under extreme conditions all year round and often experience abnormal operation, leading to accidents, causing losses of billions of yuan every year. At present, there is no effective technical means to monitor UHV transformers and predict accidents. The current in UHV transformers in the State Grid is 50 Hz and several hundred amperes in magnitude. The precursors of general transformer accidents are often accompanied by abnormal current. The detection system of non-contact wireless data transmission of the present invention can detect very weak magnetic field changes and transmit data wirelessly. In this way, by collecting the magnetic field data generated by the transformer current in real time, the current information in the transformer can be analyzed. By comparing with the current data information during normal operation, the working state of the transformer can be diagnosed. In specific implementation, using the non-contact wireless data transmission detection system of the present invention, as long as the electromagnetic detection probe 12 is placed at the key positions around the transformer, the magnetic field signal generated by the transformer current can be collected, and the data can be wirelessly transmitted to the signal receiving and processing unit 22 of the signal receiving module 2 for analysis, and the real-time monitoring of the working state of the transformer can be realized.

[0042] In the application of real-time current monitoring of motors or electrical equipment, in the industrial production field, for motors and some electrical equipment such as transformers and distribution cabinets, by installing the non-contact wireless data transmission detection system of the present invention at relevant positions, the current state of the motors and electrical equipment during operation can be monitored and the data can be uploaded to the signal receiving and processing unit 22 of the signal receiving module 2 for analysis, and problems such as motor overload, locked rotor, and equipment load, overheating and short circuit can be detected in time, thus preventing accidents from occurring.

[0043] In the application of damage detection of high-speed rail or subway tracks, steel pipes or steel plates, by mounting the non-contact wireless data transmission detection system of the present invention at the lower end of the movable carrier 3, the structures such as high-speed rail or subway tracks, steel pipes, and steel plates can be detected.

[0044] In the application of damage detection of large steel structure buildings such as bridges, by mounting the non-contact wireless data transmission detection system of the present invention at the front end of the movable carrier 3, large steel structure buildings such as large storage tanks, bridges, ships or strain clamps of fixed transmission lines in the UHV power grid can be detected. By mounting the non-contact wireless data transmission detection system of the present invention at the upper end of the movable carrier 3, the lower structure of large steel structure buildings such as large bridges can be detected.

[0045] The detection system for non-contact wireless data transmission provided by the embodiments of the present invention and its applications. The electromagnetic detection probe of the signal acquisition module and the signal receiving and processing unit of the signal receiving module are separated from each other. The receiving antenna is wirelessly connected to the transmitting antenna. The electromagnetic detection probe can be independently placed in the areas and occasions that need to be monitored key points. Through the signal receiving and processing unit for signal analysis, real-time monitoring of the detection object is realized. It has the characteristics of miniaturization, low power consumption, non-contact, and wireless data transmission, and can realize simple, fast, and efficient non-contact detection; it can also be combined with a movable carrying tool to realize dynamic movable detection of the object to be measured, and realize fast and convenient scanning detection.

[0046] So far, the embodiments of the present disclosure have been described in detail. To avoid obscuring the concept of the present disclosure, some details known in the art are not described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0047] Although some specific embodiments of the present disclosure have been described in detail by way of examples, those skilled in the art should understand that the above examples are only for illustration and not for limiting the scope of the present disclosure. Those skilled in the art should understand that the above embodiments can be modified or partial technical features can be equivalently replaced without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims

1. A detection system for non-contact wireless data transmission, characterized in that, Including: A signal acquisition module and a signal reception module, where the signal acquisition module includes an electromagnetic detection probe, a signal transmission processing unit, and a transmitting antenna arranged in sequence. The electromagnetic detection probe is used to collect the magnetic field signal around the object to be measured. The signal transmission processing unit is used to process the magnetic field signal collected by the electromagnetic detection probe. The electromagnetic detection probe is also connected to a distance sensor for detecting the distance between the electromagnetic detection probe and the object to be measured. The transmitting antenna is respectively connected to the distance sensor and the signal transmission processing unit, and is used to send the signal processing result of the signal transmission processing unit and the detected distance of the distance sensor to the signal reception module; the signal reception module includes a receiving antenna and a signal reception processing unit. The receiving antenna is wirelessly connected to the transmitting antenna and is used to receive the transmitted signal of the transmitting antenna. The signal reception processing unit is connected to the receiving antenna and is used to process the signal received by the receiving antenna to obtain the detection result of the object to be measured.

2. The detection system for non-contact wireless data transmission according to claim 1, characterized in that The signal acquisition module is arranged at a position close to the object to be measured.

3. The detection system for non-contact wireless data transmission according to claim 1, characterized in that The signal acquisition module is carried on a movable carrying tool, and the movable carrying tool includes a drone, a robotic gripper, a trolley, or a handheld tool.

4. The detection system for non-contact wireless data transmission according to claim 3, characterized in that, The movable carrying tool includes a camera for searching and determining the preliminary position of the object to be measured.

5. The detection system for non-contact wireless data transmission according to claim 1, characterized in that, The transmitting antenna performs wireless data transmission with the receiving antenna through a 3G network, a 4G network, a 5G network, wifi, Bluetooth, or lora.

6. The detection system for non-contact wireless data transmission according to claim 1, characterized in that, The signal acquisition module further includes a battery unit.

7. The detection system for non-contact wireless data transmission according to claim 1, characterized in that, The distance sensor includes a laser ranging sensor, an ultrasonic ranging sensor, or a radar sensor.

8. The detection system for non-contact wireless data transmission according to claim 1, characterized in that The electromagnetic detection probe includes a Hall sensor, an anisotropic magnetoresistive sensor, a giant magnetoresistive sensor, a tunneling magnetoresistive sensor, an electromagnetic induction coil type sensor, or a fluxgate.

9. The detection system for non-contact wireless data transmission according to claim 1, wherein, The signal reception processing unit includes a host computer.

10. Application of a detection system for non-contact wireless data transmission according to any one of claims 1-9, characterized in that, It is applied to the real-time fault monitoring of transformers in the UHV power grid of the State Grid, the real-time current monitoring of motors or power equipment, the damage detection of rails, steel pipes, or steel plates of high-speed trains or subways, and the damage detection of tall steel structure buildings.

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