CN107819487B - Portable transponder message reading tool and method - Google Patents
Portable transponder message reading tool and method Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/50—Circuits using different frequencies for the two directions of communication
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L1/00—Devices along the route controlled by interaction with the vehicle or train
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
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- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/20—Administration of product repair or maintenance
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- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H04B17/00—Monitoring; Testing
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
A portable transponder message reading tool and method mainly solves the problems that in the maintenance process of a transponder, a railway department relates to transponder message detection, LEU message and cable detection, management and remote transmission of detection information, detection positioning and the like. The device comprises a detection unit, an antenna unit, a digital signal unit, a battery and a shell. The invention has the advantages that satellite positioning technology, wireless communication technology, wireless radio frequency technology, FSK signal decoding technology and the like are adopted, wireless reading can be carried out on the transponder message, LEU signals, cables and the like can be detected, and the detection and maintenance of transponder equipment and LEU equipment by a railway electric service department are convenient; the problems of daily management such as the position positioning, message checking and transponder information maintenance of the conventional transponder equipment in the use process of a user are effectively solved by adopting satellite positioning and remote wireless transmission.
Description
Technical Field
The invention belongs to the technical field of railway signal equipment application, and particularly relates to a portable transponder message reading tool and method capable of carrying out transponder message detection, LEU signal detection, positioning and remote transmission under different environments.
Background
In a railway system, a transponder is an important component of safe driving, whether the transponder is normal or not involves driving safety, and detection of the transponder ensures that the transponder works normally is an important guarantee of safe driving. At present, the original transponder message reading tool solves the problems of inconvenient detection and maintenance of transponder equipment because of the inconvenient use of detection record data which cannot be transmitted wirelessly and remotely, the incapability of positioning by detection personnel, inconvenient real-time checking of transponder messages and the like, and the new generation of transponder message reading equipment needs to be developed.
The portable transponder message reading tool is used for solving the requirements of transponder message detection, LEU signal detection, transmission and management of detection data, detection and positioning and the like in railway departments, and the transponder message detection, LEU message and cable detection, transmission and management of detection data, detection and positioning are realized by utilizing a wireless transmitting technology, a radio frequency receiving and decoding technology, a GPS positioning technology, a wireless communication technology, a digital processing technology and the like, so that the maintenance, detection and analysis of transponders and LEU equipment are facilitated for users.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a portable transponder message reading tool and a portable transponder message reading method, which can effectively solve the problems of transponder message detection, LEU message and cable detection, management of detection information, remote transmission, detection and positioning, thereby facilitating the maintenance, detection and analysis of a user on a transponder and LEU equipment.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a portable transponder message reading tool comprises a detection unit, an antenna unit, a digital signal unit, a battery and a shell; the detection unit is electrically connected with the antenna unit and the digital signal unit respectively; the battery is electrically connected with the detection unit and the digital signal unit; the digital signal unit is in communication connection with an external remote server through wireless; the digital signal unit is in communication connection with an external client through a cable;
the detection unit is used for LEU signal acquisition, transponder 27MHZ activation signal output, transponder FSK signal receiving analysis and power management;
the antenna unit is used for transmitting a transponder 27MHZ activation signal and receiving a transponder FSK signal;
the digital signal unit is used for receiving the transponder message signals, LEU cable detection, LEU signal amplitude detection, detection information display, detection information remote transmission, equipment positioning, information storage and power management which are sent and processed by the detection unit, and providing a man-machine operation interface;
the battery is used for providing electric energy for equipment;
the shell is used for mounting, fixing and protecting the electronic part of the equipment.
The detection unit comprises a power management module, an LEU receiving module, a 27MHz transmitting module, a 4.2MHz receiving module, an interface module and a signal processing module; the LEU receiving module, the 27MHz transmitting module, the 4.2MHz receiving module, the storage module and the interface module are electrically connected with the signal processing module; the LEU receiving module, the 27MHz transmitting module, the 4.2MHz receiving module, the interface module and the signal processing module are electrically connected with the power management module;
the LEU receiving module is used for filtering, shaping and transmitting the received LEU modulation signal to the signal processing module for signal analysis;
the 27MHz transmitting module is used for generating 27.095MHz sine wave activating signals;
the 4.2MHz receiving module is used for demodulating and shaping the received FSK message modulation signal of the transponder and transmitting the signal to the signal processing module for signal analysis;
the interface module is used for realizing the electric signal switching between the antenna unit and the digital signal unit;
the signal processing module is used for LEU message modulation signal receiving processing, 27MHz transponder activation signal transmitting processing and 4.2MHz transponder message modulation signal receiving processing, and transmitting the processed signals to the digital signal unit;
the power management module is used for converting the input power supply voltage into the working power supply voltage required by each module of the detection unit and managing the power supply output.
The antenna unit comprises a transponder activation signal resonance transmitting module and a transponder message modulation signal resonance receiving module;
the transponder activation signal resonance transmitting module is used for wireless coupling transmission of 27MHZ activation signals; the transponder activation signal resonance transmitting module comprises a wireless coupling coil, a resonance circuit and an interface circuit; the resonance circuit resonates to present a low-resistance state near the receiving 27MHZ signal, so that the 27MHZ activation signal is emitted through the wireless coupling coil; the wireless coupling coil adopts an annular PCB wiring mode;
and the resonance receiving module of the transponder message modulation signal receives the 4.2MHz message modulation signal transmitted by the transponder through the wireless coupling unit and transmits the signal to the 4.2MHz receiving module of the detecting unit for demodulation.
The digital signal unit comprises a power management module, a detection unit signal interface circuit, a wireless communication module, a positioning module, a USB interface module, an acousto-optic indication module, a man-machine interaction interface module, an LEU cable detection module, an LEU signal amplitude detection module, a CPU processing module and a storage module; the detection unit signal interface circuit, the wireless communication module, the positioning module, the USB interface module, the acousto-optic indication module, the man-machine interaction interface module, the LEU cable detection module, the LEU signal amplitude detection module and the storage module are electrically connected with the CPU processing module;
the detection unit signal interface circuit is used for receiving the transponder message signals and the LEU message signals transmitted by the detection unit;
the wireless communication module is used for transmitting the equipment detection information to a remote server through GSM/GPRS; the wireless communication module comprises, but is not limited to, a GSM/GPRS communication mode;
the positioning module is used for acquiring GPS longitude and latitude information and real-time information and transmitting the GPS longitude and latitude information and the real-time information to the CPU processing module;
the USB interface module is used for realizing information transmission between the equipment and the client;
the sound-light indication module is used for indicating the running state of equipment, equipment detection or key sound prompt;
the man-machine interaction interface module comprises a display screen and a key interface module; the display screen is used for displaying the detected transponder information and LEU information; the key interface module is used for selecting detected items, inquiring information and remotely transmitting the information;
the LEU cable detection module is used for detecting on-off signals of the LEU cable;
the LEU signal amplitude detection module is used for carrying out AD conversion processing on the received LEU signal and transmitting the received LEU signal to the CPU processing module;
the CPU processing module is used for processing the information transmitted by each module, transmitting the information to the display module for display, and simultaneously transmitting the information to the storage module for information storage;
the storage module is used for storing equipment detection information;
the power supply management module is used for controlling a power supply switch, detecting a power supply state and controlling power supply output; the power management module is connected with each module of the digital signal unit and provides working power.
A method of a portable transponder message reading tool comprising the steps of:
(1) the device is electrified and selects a detection item, the portable transponder message reading tool detects an external transponder message signal through a digital signal unit, a detection unit and an antenna unit, and detects an LEU message signal through the detection unit;
(2) the portable transponder message reading tool detection unit processes the received external transponder message signal and LEU message signal and transmits the processed external transponder message signal and LEU message signal to the digital signal unit;
(3) the digital signal unit processes and stores the received transponder message information and LEU information and displays the information in a numerical and graphic mode;
(4) the digital signal unit performs position location through the location module, and transmits detection information to a remote server or a client in a wireless or wired mode.
In the step 1, the equipment is powered on, and the power-on starting is performed through an external power switch button of the equipment;
after the equipment is electrified, different detection items are selected to operate through a button keyboard of a man-machine interaction interface of a portable transponder message reading tool; the man-machine interaction interface comprises a power switch button, a button keyboard, a display screen and a power charging input interface;
the external transponder message signal detection comprises the following implementation processes: after the equipment is electrified and started, a portable transponder message reading tool is placed in a specified distance range right above an external transponder, then transponder message detection is selected through a button keyboard, and a digital signal unit sends a detection instruction to a detection unit; the detection unit receives a command of reading a transponder message, generates a 27MHZ energy activation signal, amplifies the 27MHZ energy activation signal, transmits the 27MHZ energy activation signal to the antenna unit through a cable, and transmits the 27MHZ energy signal to an external transponder through the antenna unit; the external transponder receives the 27MHZ energy signal and then activates and transmits a 4.2MHZ transponder FSK message signal; the antenna unit of the portable transponder message reading tool receives the transponder FSK message signal, analyzes the signal by the detection unit and transmits the signal to the digital signal unit for subsequent processing and display;
the LEU signal detection is realized as follows: after the equipment is electrified and started, an LEU detection probe is inserted into a detected LEU signal detection point, LEU signal detection is selected through a portable transponder message reading tool button keyboard, and a digital signal unit sends an LEU signal detection instruction to a detection unit; when receiving the LEU message reading command, the detection unit starts a channel control switch of the LEU message, and the detection unit filters, shapes and analyzes the received LEU message signal and sends the LEU message signal to the digital signal unit for subsequent processing and display.
In step 2, the signal processing of the transponder message received by the detection unit demodulates and reshapes the received transponder message modulation signal by the transponder message receiving module and then transmits the signal to the signal processing module of the detection unit, the signal processing module carries out DBPL decoding, multiple sampling and filtering processing of FSK message on the received message signal, then carries out crc75 checksum message analysis, and transmits the transponder message information to the digital signal unit after the analysis is successful; if the FSK message cannot be analyzed correctly all the time because of transmission failure or other reasons of the FSK message, the detection unit starts a subsequent return command after setting waiting time and prompts failure of message reading;
the LEU message signal processing is carried out on the received LEU message modulation signal by the detection unit, the received LEU message modulation signal is filtered and shaped by the detection unit LEU receiving module and then is transmitted to the detection unit signal processing module to carry out DBPL decoding of the LEU message, multiple sampling and filtering processing of the FSK message, CRC75 checksum analysis and the analysis; if the LEU message cannot be analyzed correctly all the time because of LEU message transmission failure or other reasons, the detection unit starts a subsequent return command after setting waiting time and prompts message reading failure.
In step 3, the receiving processing of the transponder message information or the LEU message information of the digital signal unit firstly carries out caching and checking processing on the receiving transponder message information or the LEU message information, and after successful checking, the data is returned and stored or sent; the data verification content comprises, but is not limited to, head and tail information, annular queue information, check bit information and frame length information;
the detection information is stored, and the information after receiving and processing is written into a flash memory;
the portable transponder message reading tool information display comprises, but is not limited to, navigation display, transponder reading display, LEU reading display, data viewing display, time display, GSM/GPRS signal quality display and battery power display;
and displaying the current page, and calling a corresponding display program to display when the page is switched each time.
In step 4, the position location is realized by receiving latitude and longitude information and real-time in real time through a GPS/Beidou positioning module, and then the acquired location information and message information are combined together to determine the position of a portable transponder message tool;
after the wireless information transmission is successful, the digital signal unit remote transmission module is connected with the registration network, and then communication connection is established with a remote server and information uploading is carried out;
the information uploading comprises information registered to a remote server and information stored in a detection mode; after the information is uploaded to the remote server, the equipment waits for confirmation of the information by the remote server; if the response of the remote server is not received within the set time, the equipment performs timeout retransmission;
the remote transmission module is communicated with the remote server and is connected with the remote server in a UDP mode;
the portable transponder message reading tool is connected with the client, establishes communication connection in a wired mode through a USB interface and uploads information.
The invention adopting the technical scheme has the following advantages:
(1) The invention adopts satellite positioning technology, wireless communication technology, wireless radio frequency technology, FSK signal decoding technology and the like, can perform wireless reading on the transponder message, and detects LEU signals, cables and the like, and is convenient for the railway electric service department to detect and maintain the transponder equipment and LEU equipment.
(2) The invention has satellite positioning and wireless transmission capability, and effectively solves the problems of positioning the position of the existing transponder equipment, checking the message and maintaining the daily management of the transponder information in the use process of a user.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required in the prior art and the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of a portable transponder message reading tool provided by the present invention;
FIG. 2 is a block diagram of a detection unit of a portable transponder message reading tool according to the present invention;
FIG. 3 is a block diagram of a digital signal unit of a portable transponder message reading tool provided by the present invention;
fig. 4 is a signal processing flow chart of a portable transponder message reading tool provided by the invention.
Detailed Description
The following describes the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention, where the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
As shown in fig. 1, a portable transponder message reading tool comprises a detection unit, an antenna unit, a digital signal unit, a battery and a shell; the detection unit is electrically connected with the antenna unit and the digital signal unit respectively; the battery is electrically connected with the detection unit and the digital signal unit; the digital signal unit is in communication connection with an external remote server through wireless; the digital signal unit is in communication connection with an external client through a cable;
the detection unit is used for LEU signal acquisition, transponder 27MHZ activation signal output, transponder FSK signal receiving analysis and power management;
the antenna unit is used for transmitting a transponder 27MHZ activation signal and receiving a transponder FSK signal;
the digital signal unit is used for receiving the transponder message signals, LEU cable detection, LEU signal amplitude detection, detection information display, detection information remote transmission, equipment positioning, information storage and power management which are sent and processed by the detection unit, and providing a man-machine operation interface;
the battery is used for providing electric energy for equipment;
the shell is used for mounting, fixing and protecting the electronic part of the equipment.
As shown in fig. 2, the detection unit includes a power management module, an LEU receiving module, a 27MHz transmitting module, a 4.2MHz receiving module, an interface module and a signal processing module; the LEU receiving module, the 27MHz transmitting module, the 4.2MHz receiving module, the storage module and the interface module are electrically connected with the signal processing module; the LEU receiving module, the 27MHz transmitting module, the 4.2MHz receiving module, the interface module and the signal processing module are electrically connected with the power management module;
the LEU receiving module is used for filtering, shaping and transmitting the received LEU modulation signal to the signal processing module for signal analysis;
the 27MHz transmitting module is used for generating 27.095MHz sine wave activating signals;
the 4.2MHz receiving module is used for demodulating and shaping the received FSK message modulation signal of the transponder and transmitting the signal to the signal processing module for signal analysis;
the interface module is used for realizing the electric signal switching between the antenna unit and the digital signal unit;
the signal processing module is used for LEU message modulation signal receiving processing, 27MHz transponder activation signal transmitting processing and 4.2MHz transponder message modulation signal receiving processing, and transmitting the processed signals to the digital signal unit;
the power management module is used for converting the input power supply voltage into the working power supply voltage required by each module of the detection unit and managing the power supply output.
The antenna unit comprises a transponder activation signal resonance transmitting module and a transponder message modulation signal resonance receiving module;
the transponder activation signal resonance transmitting module is used for wireless coupling transmission of 27MHZ activation signals; the transponder activation signal resonance transmitting module comprises a wireless coupling coil, a resonance circuit and an interface circuit; the resonance circuit resonates to present a low-resistance state near the receiving 27MHZ signal, so that the 27MHZ activation signal is emitted through the wireless coupling coil; the wireless coupling coil adopts an annular PCB wiring mode;
and the resonance receiving module of the transponder message modulation signal receives the 4.2MHz message modulation signal transmitted by the transponder through the wireless coupling unit and transmits the signal to the 4.2MHz receiving module of the detecting unit for demodulation.
As shown in fig. 3, the digital signal unit includes a power management module, a detection unit signal interface circuit, a wireless communication module, a positioning module, a USB interface module, an acousto-optic indication module, a man-machine interaction interface module, an LEU cable detection module, an LEU signal amplitude detection module, a CPU processing module, and a storage module; the detection unit signal interface circuit, the wireless communication module, the positioning module, the USB interface module, the acousto-optic indication module, the man-machine interaction interface module, the LEU cable detection module, the LEU signal amplitude detection module and the storage module are electrically connected with the CPU processing module;
the detection unit signal interface circuit is used for receiving the transponder message signals and the LEU message signals transmitted by the detection unit;
the wireless communication module is used for transmitting the equipment detection information to a remote server through GSM/GPRS; the wireless communication module comprises, but is not limited to, a GSM/GPRS communication mode;
the positioning module is used for acquiring GPS longitude and latitude information and real-time information and transmitting the GPS longitude and latitude information and the real-time information to the CPU processing module;
the USB interface module is used for realizing information transmission between the equipment and the client;
the sound-light indication module is used for indicating the running state of equipment, equipment detection or key sound prompt;
the man-machine interaction interface module comprises a display screen and a key interface module; the display screen is used for displaying the detected transponder information and LEU information; the key interface module is used for selecting detected items, inquiring information and remotely transmitting the information;
the LEU cable detection module is used for detecting on-off signals of the LEU cable;
the LEU signal amplitude detection module is used for carrying out AD conversion processing on the received LEU signal and transmitting the received LEU signal to the CPU processing module;
the CPU processing module is used for processing the information transmitted by each module, transmitting the information to the display module for display, and simultaneously transmitting the information to the storage module for information storage;
the storage module is used for storing equipment detection information;
the power supply management module is used for controlling a power supply switch, detecting a power supply state and controlling power supply output; the power management module is connected with each module of the digital signal unit and provides working power.
As shown in fig. 4, when the transponder message detection or the LEU signal detection is performed, a detected item is selected manually through the digital signal unit of the portable transponder message reading tool and a detection instruction is sent to the detection unit, and the detection unit opens corresponding detection channels according to different detection types after receiving the detection instruction; when a transponder is selected for detection, the detection unit outputs a 27MHZ signal and transmits the 27MHZ signal to the detected transponder through the antenna unit, the transponder receives the 27MHZ energy signal for activation and transmits a 4.2MHZ transponder message signal, the antenna unit receives the 4.2MHZ transponder message signal and transmits the 4.2MHZ transponder message signal to the detection unit for analysis, and the analyzed transponder message signal is transmitted to the digital signal unit for decoding, checking, displaying and storing; when LEU signal detection is selected, the detection unit opens an LEU signal detection channel to filter, shape and analyze a received LEU signal and then sends the received LEU signal to the digital signal unit, and the digital signal unit decodes, checks, displays and stores the received LEU message;
the portable transponder message reading tool detects information, the information is transmitted to a remote server through the digital signal unit wireless transmission module, and the information is transmitted to a client through the digital signal unit USB interface module.
A method of a portable transponder message reading tool comprising the steps of:
(1) the device is electrified and selects a detection item, the portable transponder message reading tool detects an external transponder message signal through a digital signal unit, a detection unit and an antenna unit, and detects an LEU message signal through the detection unit;
(2) the portable transponder message reading tool detection unit processes the received external transponder message signal and LEU message signal and transmits the processed external transponder message signal and LEU message signal to the digital signal unit;
(3) the digital signal unit processes and stores the received transponder message information and LEU information and displays the information in a numerical and graphic mode;
(4) the digital signal unit performs position location through the location module, and transmits detection information to a remote server or a client in a wireless or wired mode.
In the step 1, the equipment is powered on, and the power-on starting is performed through an external power switch button of the equipment;
after the equipment is electrified, different detection items are selected to operate through a button keyboard of a man-machine interaction interface of a portable transponder message reading tool; the man-machine interaction interface comprises a power switch button, a button keyboard, a display screen and a power charging input interface;
the external transponder message signal detection comprises the following implementation processes: after the equipment is electrified and started, a portable transponder message reading tool is placed in a specified distance range right above an external transponder, then transponder message detection is selected through a button keyboard, and a digital signal unit sends a detection instruction to a detection unit; the detection unit receives a command of reading a transponder message, generates a 27MHZ energy activation signal, amplifies the 27MHZ energy activation signal, transmits the 27MHZ energy activation signal to the antenna unit through a cable, and transmits the 27MHZ energy signal to an external transponder through the antenna unit; the external transponder receives the 27MHZ energy signal and then activates and transmits a 4.2MHZ transponder FSK message signal; the antenna unit of the portable transponder message reading tool receives the transponder FSK message signal, analyzes the signal by the detection unit and transmits the signal to the digital signal unit for subsequent processing and display;
the LEU signal detection is realized as follows: after the equipment is electrified and started, an LEU detection probe is inserted into a detected LEU signal detection point, LEU signal detection is selected through a portable transponder message reading tool button keyboard, and a digital signal unit sends an LEU signal detection instruction to a detection unit; when receiving the LEU message reading command, the detection unit starts a channel control switch of the LEU message, and the detection unit filters, shapes and analyzes the received LEU message signal and sends the LEU message signal to the digital signal unit for subsequent processing and display.
In step 2, the signal processing of the transponder message received by the detection unit demodulates and reshapes the received transponder message modulation signal by the transponder message receiving module and then transmits the signal to the signal processing module of the detection unit, the signal processing module carries out DBPL decoding, multiple sampling and filtering processing of FSK message on the received message signal, then carries out crc75 checksum message analysis, and transmits the transponder message information to the digital signal unit after the analysis is successful; if the FSK message cannot be analyzed correctly all the time because of transmission failure or other reasons of the FSK message, the detection unit starts a subsequent return command after setting waiting time and prompts failure of message reading;
the LEU message signal processing is carried out on the received LEU message modulation signal by the detection unit, the received LEU message modulation signal is filtered and shaped by the detection unit LEU receiving module and then is transmitted to the detection unit signal processing module to carry out DBPL decoding of the LEU message, multiple sampling and filtering processing of the FSK message, CRC75 checksum analysis and the analysis; if the LEU message cannot be analyzed correctly all the time because of LEU message transmission failure or other reasons, the detection unit starts a subsequent return command after setting waiting time and prompts message reading failure.
In step 3, the receiving processing of the transponder message information or the LEU message information of the digital signal unit firstly carries out caching and checking processing on the receiving transponder message information or the LEU message information, and after successful checking, the data is returned and stored or sent; the data verification content comprises, but is not limited to, head and tail information, annular queue information, check bit information and frame length information;
the detection information is stored, and the information after receiving and processing is written into a flash memory;
the portable transponder message reading tool information display comprises, but is not limited to, navigation display, transponder reading display, LEU reading display, data viewing display, time display, GSM/GPRS signal quality display and battery power display;
and displaying the current page, and calling a corresponding display program to display when the page is switched each time.
In step 4, the position location is realized by receiving latitude and longitude information and real-time in real time through a GPS/Beidou positioning module, and then the acquired location information and message information are combined together to determine the position of a portable transponder message tool;
after the wireless information transmission is successful, the digital signal unit remote transmission module is connected with the registration network, and then communication connection is established with a remote server and information uploading is carried out;
the information uploading comprises information registered to a remote server and information stored in a detection mode; after the information is uploaded to the remote server, the equipment waits for confirmation of the information by the remote server; if the response of the remote server is not received within the set time, the equipment performs timeout retransmission;
the remote transmission module is communicated with the remote server and is connected with the remote server in a UDP mode;
the portable transponder message reading tool is connected with the client, establishes communication connection in a wired mode through a USB interface and uploads information.
The invention has the advantages that: the satellite positioning technology, the wireless communication technology, the wireless radio frequency technology, the FSK signal decoding technology and the like are adopted, so that wireless reading can be carried out on the transponder message, the LEU message, the cable and the like can be detected, and the detection and maintenance of the transponder device and the LEU device by a railway electric service department can be facilitated; the problems of positioning the position of the existing transponder equipment, checking the message and maintaining the transponder information in daily management in the using process of a user are effectively solved by adopting satellite positioning and remote wireless transmission.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The portable transponder message reading tool is characterized by comprising a detection unit, an antenna unit, a digital signal unit, a battery and a shell; the detection unit is electrically connected with the antenna unit and the digital signal unit respectively; the battery is electrically connected with the detection unit and the digital signal unit; the digital signal unit is in communication connection with an external remote server through wireless; the digital signal unit is in communication connection with an external client through a cable;
the detection unit is used for LEU signal acquisition, transponder 27MHZ activation signal output, transponder FSK signal receiving analysis and power management;
the antenna unit is used for transmitting a transponder 27MHZ activation signal and receiving a transponder FSK signal;
the digital signal unit is used for receiving the transponder message signals and the LEU message signals which are sent and processed by the detection unit, detecting LEU cables, detecting LEU signal amplitude, displaying detection information, remotely transmitting the detection information, positioning equipment, storing information and managing power supply, and providing a man-machine operation interface;
the battery is used for providing electric energy for equipment;
the shell is used for mounting, fixing and protecting the electronic part of the equipment;
the digital signal unit comprises a power management module, a detection unit signal interface circuit, a wireless communication module, a positioning module, a USB interface module, an acousto-optic indication module, a man-machine interaction interface module, an LEU cable detection module, an LEU signal amplitude detection module, a CPU processing module and a storage module; the detection unit signal interface circuit, the wireless communication module, the positioning module, the USB interface module, the acousto-optic indication module, the man-machine interaction interface module, the LEU cable detection module, the LEU signal amplitude detection module and the storage module are electrically connected with the CPU processing module;
the detection unit signal interface circuit is used for receiving the transponder message signals and the LEU message signals transmitted by the detection unit;
the wireless communication module is used for transmitting the equipment detection information to a remote server through GSM/GPRS; the communication mode of the wireless communication module comprises a GSM/GPRS communication mode;
the positioning module is used for acquiring GPS longitude and latitude information and real-time information and transmitting the GPS longitude and latitude information and the real-time information to the CPU processing module;
the USB interface module is used for realizing information transmission between the equipment and the client;
the sound-light indication module is used for indicating the running state of equipment, equipment detection or key sound prompt;
the man-machine interaction interface module comprises a display screen and a key interface module; the display screen is used for displaying the detected transponder information and LEU information; the key interface module is used for selecting detected items, inquiring information and remotely transmitting the information;
the LEU cable detection module is used for detecting on-off signals of the LEU cable;
the LEU signal amplitude detection module is used for carrying out AD conversion processing on the received LEU signal and transmitting the received LEU signal to the CPU processing module;
the CPU processing module is used for processing the information transmitted by each module, transmitting the information to the display screen for display, and simultaneously transmitting the information to the storage module for information storage;
the storage module is used for storing equipment detection information;
the power supply management module is used for controlling a power supply switch, detecting a power supply state and controlling power supply output; the power management module is connected with each module of the digital signal unit and provides working power.
2. A portable transponder message reading tool as claimed in claim 1, wherein: the detection unit comprises a power management module, an LEU receiving module, a 27MHz transmitting module, a 4.2MHz receiving module, a storage module, an interface module and a signal processing module; the LEU receiving module, the 27MHz transmitting module, the 4.2MHz receiving module, the storage module and the interface module are electrically connected with the signal processing module; the LEU receiving module, the 27MHz transmitting module, the 4.2MHz receiving module, the interface module and the signal processing module are electrically connected with the power management module;
the LEU receiving module is used for filtering, shaping and transmitting the received LEU modulation signal to the signal processing module for signal analysis;
the 27MHz transmitting module is used for generating 27.095MHz sine wave activating signals;
the 4.2MHz receiving module is used for demodulating and shaping the received FSK message modulation signal of the transponder and transmitting the signal to the signal processing module for signal analysis;
the interface module is used for realizing the electric signal switching between the antenna unit and the digital signal unit;
the signal processing module is used for LEU message modulation signal receiving processing, 27MHz transponder activation signal transmitting processing and 4.2MHz transponder message modulation signal receiving processing, and transmitting the processed signals to the digital signal unit;
the power management module is used for converting the input power supply voltage into the working power supply voltage required by each module of the detection unit and managing the power supply output.
3. A portable transponder message reading tool as claimed in claim 1, wherein: the antenna unit comprises a transponder activation signal resonance transmitting module and a transponder message modulation signal resonance receiving module;
the transponder activation signal resonance transmitting module is used for wireless coupling transmission of 27MHZ activation signals; the transponder activation signal resonance transmitting module comprises a wireless coupling coil, a resonance circuit and an interface circuit; the resonance circuit resonates to present a low-resistance state near receiving the 27MHZ activation signal, so that the 27MHZ activation signal is emitted through the wireless coupling coil; the wireless coupling coil adopts an annular PCB wiring mode;
and the resonance receiving module of the transponder message modulation signal receives the 4.2MHz message modulation signal transmitted by the transponder through the wireless coupling unit and transmits the signal to the 4.2MHz receiving module of the detecting unit for demodulation.
4. A message reading method based on a portable transponder message reading tool according to any one of claims 1-3, comprising the steps of:
step 1, powering up equipment and selecting a detection item, wherein a portable transponder message reading tool detects an external transponder message signal through a digital signal unit, a detection unit and an antenna unit, and detects an LEU message signal through the detection unit;
step 2, the portable transponder message reading tool detection unit processes the received external transponder message signals and LEU message signals and transmits the processed external transponder message signals and LEU message signals to the digital signal unit;
step 3, the digital signal unit processes, stores and displays the received transponder message information and LEU information in a numerical value and graphic mode;
and 4, the digital signal unit performs position location through the location module, and transmits the detection information to a remote server or a client in a wireless or wired mode.
5. The method for reading a message as claimed in claim 4, wherein: in step 1, the powering up of the device specifically includes: starting the power-on through an external power switch button of the equipment;
the detection item selection specifically comprises: after the equipment is electrified, different detection items are selected to operate through a button keyboard of a man-machine interaction interface module of the portable transponder message reading tool; the man-machine interaction interface module comprises a power switch button, a button keyboard, a display screen and a power charging input interface;
the external transponder message signal detection comprises the following implementation processes: after the equipment is electrified and started, a portable transponder message reading tool is placed in a specified distance range right above an external transponder, then transponder message detection is selected through a button keyboard, and a digital signal unit sends a detection instruction to a detection unit; the detection unit generates a 27MHZ activation signal after receiving a command of reading a transponder message, the 27MHZ activation signal is amplified and then transmitted to the antenna unit through a cable, and the antenna unit transmits the 27MHZ activation signal to an external transponder; the external transponder receives the 27MHZ activation signal and then activates and transmits a 4.2MHZ transponder FSK message modulation signal; the antenna unit of the portable transponder message reading tool receives the transponder FSK message modulation signal, analyzes the signal by the detection unit and transmits the signal to the digital signal unit for subsequent processing and display;
the LEU signal detection is realized as follows: after the equipment is electrified and started, an LEU detection probe is inserted into a detected LEU signal detection point, LEU signal detection is selected through a button keyboard, and a digital signal unit sends an LEU signal detection instruction to a detection unit; when receiving the LEU message reading command, the detection unit starts a channel control switch of the LEU message, and the detection unit filters, shapes and analyzes the received LEU message signal and sends the LEU message signal to the digital signal unit for subsequent processing and display.
6. The method for reading a message as claimed in claim 4, wherein: in step 2, the processing the received transponder message signal by the detection unit specifically includes: the received transponder message modulation signal is demodulated and shaped by a transponder message receiving module and then is transmitted to a signal processing module of a detection unit, the signal processing module carries out DBPL decoding, multi-sampling and filtering processing on the received message signal and FSK message, then the received message signal is analyzed by a crc75 checksum message, and after analysis is successful, the transponder message information is transmitted to a digital signal unit; if the FSK message cannot be analyzed correctly all the time because of transmission failure or other reasons of the FSK message, the detection unit starts a subsequent return command after setting waiting time and prompts failure of message reading;
the detecting unit processes the received LEU message signal specifically includes: filtering and shaping the received LEU message modulation signal by an LEU receiving module of a detection unit, transmitting the LEU message modulation signal to a signal processing module of the detection unit to perform DBPL decoding of the LEU message, multi-sampling and filtering processing of the FSK message, CRC75 checksum analysis, and transmitting the analyzed TGM message to a digital signal unit by an interface module of the detection unit; if the LEU message cannot be analyzed correctly all the time because of LEU message transmission failure or other reasons, the detection unit starts a subsequent return command after setting waiting time and prompts message reading failure.
7. The method for reading a message as claimed in claim 4, wherein: in step 3, the receiving process of the digital signal unit on the transponder message information or the LEU message information specifically includes: firstly, caching and checking the received transponder message information or LEU message information, returning data and storing or transmitting the data after successful checking; the data verification content comprises head and tail information, annular queue information, check bit information and frame length information;
the information storage specifically comprises: writing the information after receiving processing into a flash memory;
the information display comprises navigation display, transponder reading display, LEU reading display, data viewing display, time display, GSM/GPRS signal quality display and battery power display;
the display specifically includes: and calling a corresponding display program for display when the page is switched every time.
8. The method for reading a message as claimed in claim 4, wherein: in step 4, the positioning specifically includes: the longitude and latitude information and the real-time are received in real time through the positioning module, real-time positioning is realized, and the acquired positioning information and the message information are combined together to determine the position of the portable transponder message tool;
the wireless information transmission specifically includes: after the remote transmission module of the digital signal unit is successfully connected with the registration network, communication connection is established with a remote server, and information transmission is carried out;
the information transmission comprises information registered to a remote server and information stored in a detection mode; after the information is transmitted to the remote server, the equipment waits for confirmation of the information by the remote server; if the response of the remote server is not received within the set time, the equipment performs timeout retransmission;
the remote transmission module is communicated with the remote server and is connected with the remote server in a UDP mode;
the portable transponder message reading tool is connected with the client, establishes communication connection in a wired mode through a USB interface and transmits information.
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| CN110138466B (en) * | 2019-05-31 | 2024-02-13 | 沈阳铁路信号有限责任公司 | Portable point type answering positioner state detector |
| CN110460353A (en) * | 2019-07-24 | 2019-11-15 | 柳州铁道职业技术学院 | A kind of railway active balise message generating device of hand-held |
| CN110928274B (en) * | 2019-12-09 | 2021-03-02 | 通号(北京)轨道工业集团有限公司轨道交通技术研究院 | Test system of LEU equipment |
| CN114079524B (en) * | 2020-08-11 | 2023-07-25 | 北京交大微联科技有限公司 | LEU safety comparison device and method based on time difference |
| CN113741399A (en) * | 2021-09-14 | 2021-12-03 | 北京铁路信号有限公司 | Test equipment and method |
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