CN115236437A - Intelligent detection method for TCR unit function of vehicle-mounted equipment - Google Patents
Intelligent detection method for TCR unit function of vehicle-mounted equipment Download PDFInfo
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- CN115236437A CN115236437A CN202210856161.5A CN202210856161A CN115236437A CN 115236437 A CN115236437 A CN 115236437A CN 202210856161 A CN202210856161 A CN 202210856161A CN 115236437 A CN115236437 A CN 115236437A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/005—Testing of electric installations on transport means
- G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/005—Testing of electric installations on transport means
- G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks
- G01R31/007—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks using microprocessors or computers
Abstract
The invention discloses an intelligent detection method for the functions of a TCR unit of vehicle-mounted equipment, which comprises the following steps: s1, processing a central frequency and low frequency coding sequence through a computer; s2, the computer automatically sends the coding sequence to a track signal code sending unit in a circulating manner, the TCR unit of the vehicle-mounted equipment receives data and sends the data to the host unit, and the host unit receives and analyzes the data and then generates a corresponding track signal and displays the track signal on a display screen of the host unit; s3, the host unit encodes the generated track signal and transmits the encoded track signal to the MVB master station unit, and the MVB master station unit transmits encoded information to a computer, decodes the encoded information and then encodes the encoded information again for processing; s4, automatically comparing the codes of the center frequency and the low frequency in the step S3 with the codes of the center frequency and the low frequency in the step S1 by the computer; the automatic and intelligent detection of the TCR unit function of the vehicle-mounted equipment is realized, the detection efficiency is greatly improved, the detection precision is also improved, and the informatization management of detection data can be realized through a computer.
Description
Technical Field
The invention belongs to the technical field of detection of a TCR unit of a motor train unit, and relates to an intelligent detection method for the function of the TCR unit of vehicle-mounted equipment.
Background
The TCR unit of the vehicle-mounted equipment is used for receiving track signals in the steel rail and transmitting the received information to the corresponding host unit, and finally, the train control vehicle-mounted equipment of the motor train unit can reliably receive the ground track signal.
At present, detection of a TCR unit of a vehicle-mounted equipment unit needs to be manually finished, loading test conditions are manually set, and a receiving result of the TCR unit is manually judged, on one hand, track signals are various, the track signals are FSK signals and comprise 8 central frequencies and 18 carrier frequency frequencies, up to 144 combined signals, the process of manually setting test conditions is complicated, and the working efficiency is low; on the other hand, the test result is judged manually, so that the missed judgment and the erroneous judgment are easy to generate, and the measurement result is unreliable.
Disclosure of Invention
Aiming at the problems, the invention provides an intelligent detection method for the functions of the TCR unit of the vehicle-mounted equipment, which well solves the problems of low manual testing efficiency and easy error in the prior art.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: an intelligent detection method for the TCR unit function of vehicle-mounted equipment is characterized by comprising the following steps:
s1: processing the coding sequence of the central frequency and the low frequency by a computer, wherein the coding of the central frequency is marked as A n And the coding of the low frequency is marked as B m (ii) a n is 1-8,m and 1-18;
s2: automatically and circularly sending the coding sequence of the central frequency and the low frequency in the step S1 to a track signal code sending unit through a computer, wherein the track signal code sending unit transmits data to a vehicle-mounted equipment TCR unit, the vehicle-mounted equipment TCR unit sends the data to a connected host unit after receiving the data, the host unit simultaneously performs receiving processing, and the host unit analyzes and generates a corresponding track signal and displays the track signal on a display screen of the host unit;
s3: the main unit is connected with an MVB master station unit, the master unit encodes the generated track signal and transmits the encoded signal to the MVB master station unit, the MVB master station unit transmits the encoded information to the computer, the computer decodes the received encoded information and then carries out coded sequence processing again, wherein the recoding of the central frequency is recorded as A' n Recoding of Low frequency as B' m (ii) a n is 1-8,m and 1-18;
s4: the computer automatically compares the center frequency and the low frequency codes after the recoding sequence processing in the step S3 with the center frequency and the low frequency codes in the step S1; if the comparison codes are not consistent, the detection is finished, and an error result is displayed; if the comparison codes are consistent, executing the step S5;
s5: the computer judges whether the codes of the central frequency and the low-frequency are circularly executed once, and if the codes are executed, the detection is finished; if the execution is not completed, step S2, step S3, and step S4 are executed in order.
Further, the track signal code sending unit comprises a bus interface unit, a control unit, a digital frequency synthesis unit, a power amplification unit and a power supply unit, wherein the bus interface unit, the control unit, the digital frequency synthesis unit and the power amplification unit are sequentially connected in series, and the power supply unit is connected with the bus interface unit and the power amplification unit; the bus interface unit is electrically connected with the computer, and the power amplification unit is electrically connected with the TCR unit of the vehicle-mounted equipment.
Compared with the prior art, the invention has the following beneficial effects:
the invention can automatically code and send the center frequency and the low frequency, so that the TCR unit of the vehicle-mounted equipment can automatically circularly receive the center frequency and the low frequency, the center frequency and the low frequency are transmitted to the host unit for processing after being received by the TCR unit of the vehicle-mounted equipment, and then the center frequency and the low frequency are transmitted back to the computer for recoding after being received and processed by the MVB master station unit.
Drawings
FIG. 1 is a flow chart of the present invention;
FIG. 2 is an overall schematic block diagram of the present invention;
FIG. 3 is a schematic block diagram of a track signal encoding unit;
FIG. 4 is a detection interface on a computer of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the method for intelligently detecting the TCR unit function of the vehicle-mounted device according to the present invention is characterized by comprising the following steps:
s1: processing the coding sequence of the central frequency and the low frequency by a computer, wherein the coding of the central frequency is marked as A n And the coding of the low frequency is marked as B m (ii) a n is 1-8,m and 1-18;
s2: automatically and circularly sending the coding sequence of the central frequency and the low-frequency in the step S1 to a track signal code sending unit through a computer, transmitting data to a TCR unit of vehicle-mounted equipment by the track signal code sending unit, sending the data to a connected host unit by the TCR unit of the vehicle-mounted equipment after receiving the data, simultaneously receiving and processing the data by the host unit, and analyzing and generating corresponding track signals by the host unit and displaying the corresponding track signals on a display screen of the host unit;
s3: the main unit is connected with an MVB main station unit, the main unit encodes the generated track signals and transmits the encoded track signals to the MVB main station unit, the MVB main station unit transmits the encoded information to the computer, the computer decodes the received encoded information and then processes the encoded track signals, and the recoding of the center frequency is recorded as A' n Recoding of Low frequency as B' m (ii) a n is 1 to 8,m and 1 to 18;
s4: the computer automatically compares the center frequency and the low frequency codes after the recoding sequence processing in the step S3 with the center frequency and the low frequency codes in the step S1; if the comparison codes are not consistent, the detection is finished, and an error result is displayed; if the comparison codes are consistent, executing the step S5;
s5: the computer judges whether the codes of the center frequency and the low-frequency are executed circularly once or not, and if the execution is finished, the detection is finished; if the execution is not completed, step S2, step S3, and step S4 are executed in order.
In the invention, as shown in fig. 4, when a computer automatically and circularly sends codes, each code in the central frequency corresponds to 18 codes in the low-frequency one by one, 144 frequency combinations are sent to a track signal code sending unit one by one, as shown in fig. 4, after one frequency combination is analyzed by a host unit, corresponding lamp codes are displayed on a detection interface, and the color of the lamp codes comprises three colors of yellow, red and green; the information that the frequency combination transmitted is judged to the inspector accessible lamp code, is convenient for the inspector to observe.
In the present invention, as shown in fig. 3, the track signal code sending unit includes a bus interface unit, a control unit, a digital frequency synthesis unit, a power amplification unit and a power supply unit, the bus interface unit, the control unit, the digital frequency synthesis unit and the power amplification unit are sequentially connected in series, and the power supply unit is connected with the bus interface unit and the power amplification unit; the bus interface unit is electrically connected with the computer, and the power amplification unit is electrically connected with the TCR unit of the vehicle-mounted equipment. The computer sends a control instruction generated by central frequency and low-frequency to the control unit through an RS485 bus, the control unit adopts an embedded microcontroller, the model of the embedded microcontroller adopts C8051F120, the control instruction of the computer is received, and a track signal of a corresponding system is generated according to the control instruction; the digital frequency synthesis unit adopts a digital frequency synthesis chip, the model adopts AD9854, FSK track signals of corresponding central frequency and low frequency are generated according to the control of the control unit, the power amplification unit amplifies the FSK track signals of the central frequency and the low frequency, the model of the chip adopts OPA549, and the chip is further output to an interface of a TCR unit of vehicle-mounted equipment, so that the loading of the track signals to the TCR unit is realized. In particular, the method comprises the following steps of,
in the invention, as shown in fig. 2, a computer is connected with a bus interface unit through an RS485 bus, the bus interface unit is an RS485 bus interface, a host unit adopts a 300T motor car host, a TCR unit of vehicle-mounted equipment is one part of the 300T host unit, the bus interface of the host unit in the host unit is connected with an MVB master station unit through an MVB bus, the MVB master station unit is connected with the computer through a network cable, and the whole closed loop for detecting the TCR unit of the vehicle-mounted equipment is formed.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (2)
1. An intelligent detection method for the TCR unit function of vehicle-mounted equipment is characterized by comprising the following steps:
s1: processing the coding sequence of the central frequency and the low frequency by a computer, wherein the coding of the central frequency is marked as A n And the coding of the low frequency is B m (ii) a n is 1 to 8,m and 1 to 18;
s2: automatically and circularly sending the coding sequence of the central frequency and the low frequency in the step S1 to a track signal code sending unit through a computer, wherein the track signal code sending unit transmits data to a vehicle-mounted equipment TCR unit, the vehicle-mounted equipment TCR unit sends the data to a connected host unit after receiving the data, the host unit simultaneously performs receiving processing, and the host unit analyzes and generates a corresponding track signal and displays the track signal on a display screen of the host unit;
s3: the host unit is connected with an MVB master station unit, and generatesThe track signal is coded and simultaneously transmitted to an MVB main station unit, the MVB main station unit transmits the coded information to a computer, the computer decodes the received coded information and then processes the coded sequence, wherein the recoding of the central frequency is marked as A' n Recoding of Low frequency as B' m (ii) a n is 1-8,m and 1-18;
s4: automatically comparing the codes of the center frequency and the low frequency after the recoding sequence processing in the step S3 with the codes of the center frequency and the low frequency in the step S1 by the computer; if the comparison codes are not consistent, the detection is finished, and an error result is displayed; if the comparison codes are consistent, executing the step S5;
s5: the computer judges whether the codes of the central frequency and the low-frequency are circularly executed once, and if the codes are executed, the detection is finished; if the execution is not completed, step S2, step S3, and step S4 are executed in order.
2. The intelligent detection method for the functions of the TCR unit of the vehicle-mounted device according to claim 1, characterized in that: the track signal code sending unit comprises a bus interface unit, a control unit, a digital frequency synthesis unit, a power amplification unit and a power supply unit, wherein the bus interface unit, the control unit, the digital frequency synthesis unit and the power amplification unit are sequentially connected in series, and the power supply unit is connected with the bus interface unit and the power amplification unit; the bus interface unit is electrically connected with the computer, and the power amplification unit is electrically connected with the TCR unit of the vehicle-mounted equipment.
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| CN202210856161.5A CN115236437B (en) | 2022-07-15 | 2022-07-15 | Intelligent detection method for functions of TCR unit of vehicle-mounted equipment |
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| CN202210856161.5A CN115236437B (en) | 2022-07-15 | 2022-07-15 | Intelligent detection method for functions of TCR unit of vehicle-mounted equipment |
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