CN113033726A - Underground cable inspection system and method - Google Patents

Underground cable inspection system and method Download PDF

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Publication number
CN113033726A
CN113033726A CN202110098873.0A CN202110098873A CN113033726A CN 113033726 A CN113033726 A CN 113033726A CN 202110098873 A CN202110098873 A CN 202110098873A CN 113033726 A CN113033726 A CN 113033726A
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CN
China
Prior art keywords
underground
receiving
information
sending
signal receiving
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Pending
Application number
CN202110098873.0A
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Chinese (zh)
Inventor
黄建华
赵鹏
李坚
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Beijing Rxg Technology Co ltd
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Beijing Rxg Technology Co ltd
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Filing date
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Priority claimed from CN2020116266227 external-priority
Application filed by Beijing Rxg Technology Co ltd filed Critical Beijing Rxg Technology Co ltd
Publication of CN113033726A publication Critical patent/CN113033726A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KGRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K17/00Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
    • G06K17/0022Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device
    • G06K17/0029Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device the arrangement being specially adapted for wireless interrogation of grouped or bundled articles tagged with wireless record carriers
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06QDATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00Administration; Management
    • G06Q10/20Product repair or maintenance administration

Abstract

The invention discloses an underground cable inspection system and an underground cable inspection method. The system comprises: the inspection terminal sends an inspection instruction to the ground signal receiving and sending device and receives information returned by the ground signal receiving and sending device; the ground signal receiving and sending device is used for sending the inspection instruction to the underground wireless transmitting and receiving device and sending the read information to the inspection terminal; the underground wireless transmitting and receiving device controls underground RFID reader equipment to read RFID label information; the received information is transmitted to a ground signal receiving and transmitting device; the underground RFID reader reads the RFID label information; sending the read label information to an underground wireless transmitting receiver; and the RFID tag records attribute information, use condition information and environment information of the cable. The inspection personnel can inspect the underground cable in the same area on the ground; the safety and efficiency of patrolling and examining are improved, and the operation process of patrolling and examining the underground cable is simplified.

Description

Underground cable inspection system and method
Technical Field
The invention relates to the field of RFID (radio frequency identification) tag application, in particular to an underground cable inspection system and an underground cable inspection method.
Background
With the rapid development of urban construction, cables are applied more and more, the current cables are mainly laid in a buried mode and an overhead mode, and due to the requirements on urban appearance and safety considerations, more and more cables are transferred to the ground. The safety of the cable is an important factor of the safety of the power system, so that the inspection of the cable is very important to guarantee the normal work of the cable.
Present mode of patrolling and examining carries out the cable for going to the underground usually and patrols and examines because the underground environment is complicated, and dangerous factor is more, and personnel go to the underground, also need corresponding safeguard measure, and the process is more complicated, consumes more manpower and materials, and in addition, some underground environment spaces are narrow and small, can't hold personnel and get into, have the problem that can't detect.
In order to facilitate the inspection of the cable, in the prior art, when the cable is laid, a cable identification tag (e.g., an RFID tag) is connected to the cable, and the cable is inspected by reading the cable identification tag.
However, as mentioned above, the problem that the objective environment is complex and the risk factors are more still exists in the routing inspection of the cable located in the underground space, and how to implement safe and efficient routing inspection of the underground cable on the ground is a problem of the current research focus.
Disclosure of Invention
In view of the above, the present invention has been made to provide a system and method for underground cable inspection that overcomes, or at least partially solves, the above-mentioned problems.
In one aspect, an embodiment of the present invention provides an underground cable inspection system, including: the system comprises an inspection terminal, a ground signal receiving and sending device, an underground wireless transmitting and receiving device, an underground RFID reader and an RFID label;
the system comprises a polling terminal, a ground signal receiving and sending device and a ground signal receiving and sending device, wherein the polling terminal is used for sending a polling instruction to the ground signal receiving and sending device and receiving RFID label information returned by the ground signal receiving and sending device;
the ground signal receiving and sending device is arranged on the ground and used for sending the inspection instruction to the underground wireless transmitting and receiving device and sending the RFID label information to the inspection terminal;
the underground wireless transmitting and receiving device is arranged underground and used for forwarding the inspection instruction sent by the ground signal receiving and sending device to the underground RFID reader so as to control the underground RFID reader to read the RFID label information; forwarding the received RFID label information to the ground signal receiving and sending device;
the underground RFID reader is used for reading RFID label information; sending the read label information to an underground wireless transmitting receiver;
and the RFID tag is used for being bundled on the cable to be detected and recording the attribute information, the use condition information and the environment information of the cable.
In one embodiment, the system further comprises:
and the relay equipment is arranged among the ground signal receiving and sending device, the underground wireless transmitting and receiving device and the underground RFID reader and is used for amplifying signals among the ground signal receiving and sending device, the underground wireless transmitting and receiving device and the underground RFID reader.
In one embodiment, the relay device includes: the device comprises a singlechip, a signal amplifier and a power amplifier; the single chip microcomputer carries out thread monitoring; the signal amplifier is used for amplifying a data signal; the power amplifier is used for forwarding the amplified data signal.
In one embodiment, the underground wireless transmitter-receiver comprises: the signal receiving and sending module is used for receiving and sending signals; wherein:
the signal conversion module is used for converting the signal form;
the amplifying module is used for amplifying the signal;
the control module is used for forwarding the inspection instruction to an underground RFID reader so as to control the underground RFID reader to read RFID label information;
and the power supply module is used for providing electric energy for the underground wireless transmitting and receiving device.
In one embodiment, the RFID tag includes: a chip, an antenna and a sensor; wherein, the chip is connected with the antenna and the sensor;
the sensor is used for acquiring the service condition information and the service environment information of the cable and storing the acquired information into the chip;
and the chip is used for storing the self attribute information of the underground cable and the information acquired by the sensor, comparing the data acquired by the sensor with a preset threshold value, marking if the data is abnormal, and correspondingly storing the abnormal mark and the data acquired by the sensor.
In one embodiment, the sensor comprises one or any of:
current sensors, temperature sensors, pressure sensors, smoke sensors and humidity sensors.
In one embodiment, the relay device is used for receiving an ARP message of an inspection instruction sent by a ground signal receiving and sending device through a self thread monitoring relay port, generating a forwarding list according to the ARP message of the inspection instruction, amplifying a data signal, and sending the ARP message of the inspection instruction to an underground wireless transmitting and receiving device through a broadcast mode; if an ARP request replied by the underground wireless transmitting receiver is received, storing the address of the underground wireless transmitting receiver in the received ARP request in a forwarding list;
and the underground wireless transmitting receiver is used for replying the ARP request of the inspection instruction.
In one embodiment, the relay device is further configured to receive, through the thread monitoring relay port, an ARP packet of the RFID tag information sent by the underground wireless transmitter-receiver, and send, through a destination MAC address in the ARP packet of the RFID tag information, the packet to the ground signal transmitting-receiving device.
In a second aspect, an embodiment of the present invention provides a method for inspecting an underground cable, including:
the polling terminal sends a polling instruction to the ground signal receiving and sending device;
the ground signal receiving and sending device encodes the instruction into an electromagnetic wave signal and sends the electromagnetic wave signal to an underground wireless transmitting and receiving device;
the underground wireless transmitting receiver transmits the inspection instruction sent by the ground signal receiving and sending device to the underground RFID reader;
the underground RFID reader reads the RFID label information according to the routing inspection instruction and sends the read label information to an underground wireless transmitting and receiving device;
the underground wireless transmitting and receiving device encodes the RFID label information into an electromagnetic wave signal and forwards the received RFID label information to the ground signal receiving and sending device;
the ground signal receiving and sending device restores the electromagnetic wave signal into RFID label information and sends the RFID label information to the inspection terminal.
In one embodiment, the ground signal receiving and sending device sends the inspection instruction to an underground wireless transmitting and receiving device in a wireless relay mode; and receiving the RFID tag information from the underground wireless transmitter-receiver.
The technical scheme provided by the embodiment of the invention has the beneficial effects that at least:
the embodiment of the invention provides a system and a method for polling an underground cable, which are characterized in that RFID tags are bound on the underground cable, a ground signal receiving and sending device is arranged on the ground, polling personnel holds a polling terminal by hand and sends polling signals to the ground signal receiving and sending device, the ground signal receiving and sending device sends the polling signals to relay equipment or an underground wireless transmitting and receiving device, the underground wireless transmitting and receiving device controls an FRID reader to read RFID tag information, the underground wireless transmitting and receiving device returns the read information to the polling terminal, the polling personnel check cable information through the polling terminal and simultaneously send the RFID tag information to remote monitoring equipment, so that the RFID tag information can be checked both at a remote place and a near place without underground polling; and marking the abnormal information and reminding the inspection personnel. Because the underground RFID reader is arranged underground, the underground cables in the same area can be patrolled only by sending the patrol instruction to the ground signal receiving and sending device on the ground, so that the manufacturing cost and the cost are saved, and the workload of people is reduced.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a system block diagram according to an embodiment of the present invention;
FIG. 2 is a block diagram of an exemplary system in an embodiment of the invention;
fig. 3 is a block diagram of a relay device according to an embodiment of the present invention;
fig. 4 is a flowchart of a polling process in the embodiment of the present invention.
The labels in the figure are:
1. the system comprises an inspection terminal 2, a ground signal receiving and sending device 3, a relay device 4, an underground wireless transmitting and receiving device 5, an underground RFID reader 6 and an RFID tag.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The invention provides an underground cable inspection system which comprises an inspection terminal, a ground signal receiving and sending device, an underground wireless transmitting and receiving device, an underground RFID reader and an RFID label, wherein the underground wireless transmitting and receiving device is arranged on the ground;
the system comprises a polling terminal, a ground signal receiving and sending device and a ground signal receiving and sending device, wherein the polling terminal is used for sending a polling instruction to the ground signal receiving and sending device and receiving RFID label information returned by the ground signal receiving and sending device;
the ground signal receiving and sending device is arranged on the ground and used for sending the inspection instruction to the underground wireless transmitting and receiving device and sending the RFID label information to the inspection terminal;
the underground wireless transmitting and receiving device is arranged underground and used for forwarding the inspection instruction sent by the ground signal receiving and sending device to the underground RFID reader so as to control the underground RFID reader to read the RFID label information; forwarding the received RFID label information to the ground signal receiving and sending device;
the underground RFID reader is used for reading RFID label information; sending the read label information to an underground wireless transmitting receiver;
and the RFID tag is used for being bundled on the cable to be detected and recording the attribute information, the use condition information and the environment information of the cable.
The invention provides a system and a method for polling underground cables, which are implemented specifically, RFID tags are bound on the underground cables, an underground RFID reader is installed underground, a ground signal receiving and sending device is installed on the ground, polling personnel hand-hold a polling terminal, sequentially transmit polling instructions through the ground signal receiving and sending device and an underground wireless transmitting and receiving device so as to control the underground FRID reader to read RFID tag information, and sequentially receive the RFID tag information read by the underground RFID reader through the underground wireless transmitting and receiving device and the ground signal receiving and sending device.
The inspection personnel can inspect the underground cable in the same area on the ground by only using the inspection terminal to send an inspection instruction to the ground signal receiving and sending device on the ground and receive the returned RFID label information, and the inspection personnel does not need to enter the ground on the spot to finish the inspection; the safety and efficiency of the inspection can be improved, and the operation process of the inspection of the underground cable is simplified.
The underground RFID reader can be installed in a reasonable range away from an underground cable according to the reading requirement of the RFID tag, for example, the corresponding installation distance can be selected according to the high frequency and the low frequency of radio frequency, for example, the high frequency or the ultrahigh frequency RFID tag is adopted, the installation distance of the underground RFID reader is far, otherwise, the installation distance is close if the underground RFID reader is the low frequency RFID tag, and the accurate reading of information in the RFID tag can be realized.
The above process is illustrated as an example. Referring to the architecture of the system shown in fig. 2, the equipment located on the ground comprises: the inspection terminal 1 and the ground signal receiving and sending device 2 are underground equipment and comprise at least one underground wireless transmitting and receiving device 4, at least one underground RFID reader 5 and at least one RFID label 6.
Patrol and examine terminal 1 and send the signal of patrolling and examining to ground signal receiving and sending device 2, ground signal receiving and sending device 2 sends the signal of patrolling and examining to underground wireless transceiver 4, and underground wireless transceiver 4 controls FRID reader 5 and reads the information of RFID label 6, and underground wireless transceiver 4 returns the RFID label information of reading to patrol and examine terminal 1, and the personnel of patrolling and examining look over the relevant information of the cable of record in the RFID label through patrolling and examining terminal 1.
In the underground, for example, the ground signal receiving and transmitting device 2 is close to the underground wireless transmitting and receiving device 4, and can directly communicate with the underground wireless transmitting and receiving device 4, in quantity, a plurality of underground wireless transmitting and receiving devices 4 can be arranged, and in such a case, the ground signal receiving and transmitting device 2 can directly communicate with the plurality of underground wireless transmitting and receiving devices 4.
Still referring to fig. 2, if the ground signal receiving and transmitting device 2 is far from the underground wireless transmitting and receiving device 4, the system may further include at least one relay device 3, and the relay device 3 is installed between the ground signal receiving and transmitting device 2, the underground wireless transmitting and receiving device 4, and the underground RFID reader 5, and is configured to amplify signals among the three, increase a signal transmission distance, and avoid the situations of underground signal attenuation and signal loss.
If the transmission distance of the relay device 3 can cover all the underground wireless transceivers 4 in the area, the relay device 3 can directly transmit the instruction and the information with the plurality of underground wireless transceivers 4, otherwise, if the transmission distance of the relay device 3 can not cover all the underground wireless transceivers 4 in the area, the plurality of relay devices 3 can be installed to continuously transmit the signal, so as to further increase the signal transmission distance until the signal transmission distance can cover all the underground wireless transceivers 4 in the area.
The specific process of the signal transmission of the system may be, for example: the ground signal receiving and sending device 2 forwards the patrol inspection instruction sent by the patrol inspection terminal 1 to the relay device 3, the relay device 3 receives the patrol inspection instruction, the patrol inspection instruction is forwarded to the next-stage relay device 3 after the signal is amplified, the next-stage relay device 3 re-amplifies the signal and forwards the signal to the underground wireless receiving and sending device 4, the underground wireless receiving and sending device 4 receives the patrol inspection instruction, sends a control signal to the next-stage relay device 3, the next-stage relay device 3 amplifies the control signal and forwards the amplified control signal to the underground RFID reader 5, and the underground RFID reader 5 reads information of the RFID tag 6 in response to the received control signal. The read information in the RFID tag is sequentially returned to the inspection terminal 1 on the ground, and the path is opposite to the above process, which is not described herein again.
In the embodiment of the present invention, the communication between the relay device 3 and the ground signal receiving and transmitting device 2, the underground wireless transmitting and receiving device 4 and the underground RFID reader 5 can be performed, for example, in the following manner, for convenience of description, the communication between the relay device 3 and the underground wireless transmitting and receiving device 4 is taken as an example, and the interaction process with the other two devices is similar to that.
Specifically, referring to fig. 3, the relay apparatus may include: the system comprises a single chip microcomputer, a signal amplifier and a power amplifier, wherein the single chip microcomputer is used for thread monitoring; the signal amplifier is used for amplifying a data signal; the power amplifier is used for forwarding data signals, in the communication process, the relay equipment receives the ARP messages of the routing inspection instructions sent by the ground signal receiving and sending device through the thread monitoring relay port of the relay equipment, generates a forwarding list according to the ARP messages of the routing inspection instructions, amplifies the data signals through the signal amplifier in the relay equipment, and sends the ARP messages of the routing inspection instructions to the underground wireless transmitting and receiving device through a broadcasting mode.
The method comprises the specific processes of obtaining a target MAC address in an ARP message, obtaining the ARP message according to the target MAC address, generating a forwarding port corresponding to the address in a forwarding list, and forwarding the ARP message to a corresponding underground wireless transmitting receiver through the port.
The power amplifier sends ARP broadcast to the address of each target terminal in the terminal list periodically, the target terminal returns ARP message or does not return ARP message, the terminal list is updated according to the returned message, the updated list is sent to the inspection terminal, and the inspection terminal can check whether the underground wireless transmitting receiver, the relay equipment and the underground RFID reader work normally or not according to the change of the terminal list.
The relay equipment receives the ARP message of the RFID label information sent by the underground wireless transmitting and receiving device through the thread monitoring relay port, and sends the message to the ground signal receiving and sending device through a target MAC address in the ARP message of the RFID label information.
In one embodiment, the inspection terminal receives the RFID tag information and then displays the RFID tag information, for example, if the RFID tag information carries a marker indicating that the ambient temperature is abnormal, the inspection terminal highlights the RFID tag information on a display screen in a preset manner and sends corresponding alarm information.
The result accessible of patrolling and examining is patrolled and examined the terminal and is directly perceived the staff who patrols and examines, makes things convenient for the staff to obtain the result of patrolling and examining fast.
In the embodiment of the invention, as shown in fig. 3, the underground cable inspection system may further include a remote monitoring device, wherein the remote monitoring device is in communication with at least one inspection terminal, and is configured to acquire the RFID tag information obtained by the inspection terminal, and may implement functions of storing, displaying, analyzing and the like on the RFID tag information of a plurality of inspection locations, so that a worker can conveniently remotely check the RFID tag information in a remote access manner, and manage the conditions of the underground cables of the plurality of inspection locations.
In one embodiment, the RFID tag may include, for example: the sensor is used for acquiring the service condition and service environment of the cable and storing the acquired information into the chip; and the chip is used for comparing the acquired data with a preset normal value, marking if the data is abnormal, and simultaneously storing the acquired data, the abnormal mark, the ID of the cable, the production information and the like.
In the embodiment of the invention, the sensor sends the acquired information such as the current and voltage fluctuation of the cable, the environment temperature of the cable, the environment pressure of the cable, the concentration of combustible gas in the environment of the cable and the humidity of the environment of the cable to the chip, compares the acquired data with the normal data value stored in the chip, marks abnormal data, and stores the acquired data, the abnormal marks, the ID of the cable and the production information in the chip.
In one embodiment, the underground wireless transmitter-receiver comprises: an antenna for receiving and transmitting signals; a converter for converting a signal form; the amplifier is used for amplifying the signal and increasing the transmission distance; the controller is used for controlling reader equipment under the RFID to read the RFID label information; and the power supply is used for supplying electric energy to the underground wireless transmitting and receiving device.
In the embodiment of the invention, the underground wireless transmitting and receiving device receives a data electromagnetic wave signal, the electromagnetic wave signal is converted into an instruction code in the converter, the instruction code is amplified by the amplifier, the instruction signal is sent to the controller after amplification is finished, the controller controls the RFID underground reader device to read RFID tag information according to the instruction signal, and the power supply module is a lithium battery and provides electric energy for the underground wireless transmitting and receiving device.
In an embodiment of the present invention, the sensor includes, for example, one or more of the following sensors: current sensors, temperature sensors, pressure sensors, smoke sensors, humidity sensors, and the like.
The current sensor is used for monitoring the current condition of the cable and recording the voltage, the current change, the environmental temperature of the cable, the environmental pressure of the cable, the concentration of the combustible gas of the environment of the cable and the humidity of the environment of the cable.
The embodiments of the present invention are not limited to the above-mentioned various sensors, and the corresponding sensors are preset according to the environment and the content of the detection items of the cable. The sensor can be flexibly configured according to the environment of the cable, so as to monitor the cable at different positions and under different environments.
The operation of the above system is described below in terms of an inspection process, which is shown in fig. 4 and includes: the following steps S1-S6:
step S1, the inspection terminal sends an inspection instruction to the ground signal receiving and sending device;
step S2, the ground signal receiving and sending device encodes the command into an electromagnetic wave signal and sends the electromagnetic wave signal to the underground wireless transmitting and receiving device;
step S3, the underground wireless transmitting receiver transmits the inspection instruction sent by the ground signal receiving and sending device to the underground RFID reader so as to control the underground RFID reader to read the RFID label information;
step S4, reading RFID label information by an underground RFID reader; sending the read label information to an underground wireless transmitting receiver;
step S5, the underground wireless transmitter-receiver encodes the RFID label information into electromagnetic wave signals, and transmits the received RFID label information to the ground signal receiving-transmitting device;
and step S6, the ground signal receiving and sending device restores the electromagnetic wave signal into RFID label information and sends the RFID label information to the inspection terminal.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (10)

1. An underground cable inspection system, comprising: the system comprises an inspection terminal, a ground signal receiving and sending device, an underground wireless transmitting and receiving device, an underground RFID reader and an RFID label;
the system comprises a polling terminal, a ground signal receiving and sending device and a ground signal receiving and sending device, wherein the polling terminal is used for sending a polling instruction to the ground signal receiving and sending device and receiving RFID label information returned by the ground signal receiving and sending device;
the ground signal receiving and sending device is arranged on the ground and used for sending the inspection instruction to the underground wireless transmitting and receiving device and sending the RFID label information to the inspection terminal;
the underground wireless transmitting and receiving device is arranged underground and used for forwarding the inspection instruction sent by the ground signal receiving and sending device to the underground RFID reader so as to control the underground RFID reader to read the RFID label information; forwarding the received RFID label information to the ground signal receiving and sending device;
the underground RFID reader is used for reading RFID label information; sending the read label information to an underground wireless transmitting receiver;
and the RFID tag is used for being bundled on the cable to be detected and recording the attribute information, the use condition information and the environment information of the cable.
2. The system of claim 1, further comprising:
and the relay equipment is arranged among the ground signal receiving and sending device, the underground wireless transmitting and receiving device and the underground RFID reader and is used for amplifying signals among the ground signal receiving and sending device, the underground wireless transmitting and receiving device and the underground RFID reader.
3. The system of claim 2, wherein the relay device comprises: the device comprises a singlechip, a signal amplifier and a power amplifier; the single chip microcomputer carries out thread monitoring; the signal amplifier is used for amplifying a data signal; the power amplifier is used for forwarding the amplified data signal.
4. The system according to claim 2 or 3, wherein the relay device is configured to receive, through its own thread monitoring relay port, an ARP packet of an inspection instruction sent by a ground signal receiving and sending device, generate a forwarding list according to the ARP packet of the inspection instruction, amplify a data signal, and send the ARP packet of the inspection instruction to the underground wireless transmitter-receiver in a broadcast mode; if an ARP request replied by the underground wireless transmitting receiver is received, storing the address of the underground wireless transmitting receiver in the received ARP request in a forwarding list;
and the underground wireless transmitting receiver is used for replying the ARP request of the inspection instruction.
5. The system according to claim 2 or 3, wherein the relay device is further configured to receive, through the thread monitoring relay port, an ARP message of the RFID tag information sent by the underground wireless transmitter-receiver, and send the message to the ground signal transmitter-receiver through a destination MAC address in the ARP message of the RFID tag information.
6. The system of claim 1, wherein the underground wireless transmitter-receiver comprises: the signal receiving and sending module is used for receiving and sending signals; wherein:
the signal conversion module is used for converting the signal form;
the amplifying module is used for amplifying the signal;
the control module is used for forwarding the inspection instruction to an underground RFID reader so as to control the underground RFID reader to read RFID label information;
and the power supply module is used for providing electric energy for the underground wireless transmitting and receiving device.
7. The system of claim 1, wherein the RFID tag comprises: a chip, an antenna and a sensor; wherein, the chip is connected with the antenna and the sensor;
the sensor is used for acquiring the service condition information and the service environment information of the cable and storing the acquired information into the chip;
and the chip is used for storing the self attribute information of the underground cable and the information acquired by the sensor, comparing the data acquired by the sensor with a preset threshold value, marking if the data is abnormal, and correspondingly storing the abnormal mark and the data acquired by the sensor.
8. The system of claim 7, wherein the sensor comprises one or any of:
current sensors, temperature sensors, pressure sensors, smoke sensors and humidity sensors.
9. An underground cable inspection method is characterized by comprising the following steps:
the polling terminal sends a polling instruction to the ground signal receiving and sending device;
the ground signal receiving and sending device encodes the instruction into an electromagnetic wave signal and sends the electromagnetic wave signal to an underground wireless transmitting and receiving device;
the underground wireless transmitting receiver transmits the inspection instruction sent by the ground signal receiving and sending device to the underground RFID reader;
the underground RFID reader reads the RFID label information according to the routing inspection instruction and sends the read label information to an underground wireless transmitting and receiving device;
the underground wireless transmitting and receiving device encodes the RFID label information into an electromagnetic wave signal and forwards the received RFID label information to the ground signal receiving and sending device;
the ground signal receiving and sending device restores the electromagnetic wave signal into RFID label information and sends the RFID label information to the inspection terminal.
10. The method of claim 9, wherein the ground signal receiving and sending device sends the inspection instruction to an underground wireless transmitting and receiving device in a wireless relay mode; and receiving the RFID tag information from the underground wireless transmitter-receiver.
CN202110098873.0A 2020-12-31 2021-01-25 Underground cable inspection system and method Pending CN113033726A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113593072A (en) * 2021-07-23 2021-11-02 江苏电力信息技术有限公司 Mobile inspection equipment and method based on RFID label underground cable line

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113593072A (en) * 2021-07-23 2021-11-02 江苏电力信息技术有限公司 Mobile inspection equipment and method based on RFID label underground cable line

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