CN115236437B - Intelligent detection method for functions of TCR unit of vehicle-mounted equipment - Google Patents
Intelligent detection method for functions of TCR unit of vehicle-mounted equipment Download PDFInfo
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- CN115236437B CN115236437B CN202210856161.5A CN202210856161A CN115236437B CN 115236437 B CN115236437 B CN 115236437B CN 202210856161 A CN202210856161 A CN 202210856161A CN 115236437 B CN115236437 B CN 115236437B
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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
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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 center frequency and low frequency coding sequence by a computer; s2, the computer automatically and circularly transmits the coding sequence to a track signal code transmitting unit, the vehicle-mounted equipment TCR unit receives data and transmits the data to a host unit, and the host unit receives and analyzes the data to generate a corresponding track signal and displays the corresponding track signal on a display screen of the host unit; s3, the host unit encodes and transmits the generated track signal to the MVB master station unit, and the MVB master station unit transmits the encoded information to a computer for decoding and then re-encodes the sequence; s4, the computer automatically compares 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; the intelligent detection device has the advantages that the functions of the TCR unit of the vehicle-mounted equipment are automatically and intelligently detected, 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 TCR units of motor train units, and relates to an intelligent detection method for functions of TCR units of vehicle-mounted equipment.
Background
The vehicle-mounted device TCR unit is used for receiving the track signals in the steel rail, transmitting the received information to the corresponding host unit, and finally realizing reliable ground track signal receiving of train control vehicle-mounted devices of the train.
At present, the detection of the TCR unit of the vehicle-mounted equipment unit is required to be completed manually, loading test conditions are set manually, and the receiving result of the TCR unit is judged manually, on one hand, the track signals are various, the track signals are FSK signals, 8 kinds of center frequencies, 18 kinds of carrier frequency frequencies and up to 144 kinds of combined signals are used, the process of manually setting the process test conditions is complicated, and the working efficiency is low; on the other hand, the test result is manually judged, so that missed judgment and false 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 above purpose, the technical scheme adopted by the invention is as follows: the intelligent detection method for the functions of the TCR unit of the vehicle-mounted equipment is characterized by comprising the following steps of:
s1: the central frequency and the low frequency are processed by the computer in coding sequence, wherein the coding of the central frequency is marked as A n The code of the low frequency is denoted as B m The method comprises the steps of carrying out a first treatment on the surface of the n is 1 to 8, m is 1 to 18;
s2: the method comprises the steps that a computer automatically and circularly sends a coding sequence with center frequency and low frequency in the step S1 to a track signal code sending unit, the track signal code sending unit transmits data to a vehicle-mounted device TCR unit, the vehicle-mounted device TCR unit receives the data and then sends the data to a connected host unit, the host unit simultaneously receives the data, and the host unit analyzes and generates corresponding track signals and displays the corresponding track signals on a display screen of the host unit;
s3: the host machineThe unit is connected with an MVB master station unit, the host unit encodes the generated track signal and simultaneously transmits the encoded signal to the MVB master station unit, the MVB master station unit transmits the encoded information to a computer, the computer decodes the received encoded information and then processes a recoding sequence, wherein recoding of the center frequency is recorded as A' n Recoding of low frequency frequencies is denoted as B' m The method comprises the steps of carrying out a first treatment on the surface of the n is 1 to 8, m is 1 to 18;
s4: the computer automatically compares 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; if the comparison codes are inconsistent, the detection is finished, and an error result is displayed; if the comparison codes are consistent, executing a step S5;
s5: the computer judges whether the coding of the center frequency and the low frequency is circularly executed for one time, if the execution is finished, the detection is finished; if the execution is not completed, step S2, step S3, and step S4 are sequentially executed.
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 power amplification unit and the vehicle-mounted equipment TCR unit.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the center frequency and the low frequency can be automatically encoded and coded, so that the vehicle-mounted device TCR unit can automatically and circularly receive the center frequency and the low frequency, and the center frequency and the low frequency are transmitted to the host unit for processing after being received by the vehicle-mounted device TCR unit, and then are transmitted back to the computer for recoding after being received by the MVB master station unit, and the front center frequency, the rear center frequency and the low frequency are automatically compared by the computer for coding, thereby realizing the automatic and intelligent detection of the functions of the vehicle-mounted device TCR unit, greatly improving the detection efficiency, improving the detection precision, and realizing the informatization management of detection data by the computer.
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FIG. 1 is a flow chart of the present invention;
FIG. 2 is a block diagram of the overall principle of the invention;
FIG. 3 is a schematic block diagram of a track signal coding unit;
FIG. 4 is a diagram of a detection interface on a computer according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only 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 be within the scope of the invention.
As shown in fig. 1, the intelligent detection method for the functions of the TCR unit of the vehicle-mounted equipment is characterized by comprising the following steps:
s1: the central frequency and the low frequency are processed by the computer in coding sequence, wherein the coding of the central frequency is marked as A n The code of the low frequency is denoted as B m The method comprises the steps of carrying out a first treatment on the surface of the n is 1 to 8, m is 1 to 18;
s2: the method comprises the steps that a computer automatically and circularly sends a coding sequence with center frequency and low frequency in the step S1 to a track signal code sending unit, the track signal code sending unit transmits data to a vehicle-mounted device TCR unit, the vehicle-mounted device TCR unit receives the data and then sends the data to a connected host unit, the host unit simultaneously receives the data, and the host unit analyzes and generates corresponding track signals and displays the corresponding track signals on a display screen of the host unit;
s3: the host unit is connected with an MVB master station unit, the host unit encodes the generated track signals and simultaneously transmits the encoded signals to the MVB master station unit, the MVB master station unit transmits the encoded information to a computer, the computer decodes the received encoded information and then processes the recoding sequence, wherein recoding of the center frequency is recorded asA′ n Recoding of low frequency frequencies is denoted as B' m The method comprises the steps of carrying out a first treatment on the surface of the n is 1 to 8, m is 1 to 18;
s4: the computer automatically compares 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; if the comparison codes are inconsistent, the detection is finished, and an error result is displayed; if the comparison codes are consistent, executing a step S5;
s5: the computer judges whether the coding of the center frequency and the low frequency is circularly executed for one time, if the execution is finished, the detection is finished; if the execution is not completed, step S2, step S3, and step S4 are sequentially executed.
In the invention, as shown in fig. 4, when the computer automatically circulates and sends codes, each code in the center frequency corresponds to 18 codes in the low frequency one by one, 144 frequency combinations are sent to a track signal code sending unit, as shown in fig. 4, after one frequency combination is analyzed by a host unit, a corresponding lamp code is displayed on a detection interface, and the lamp code comprises three colors of yellow, red and green; the inspector can judge the information transmitted by the frequency combination through the lamp codes, so that the inspector can observe conveniently.
In the invention, as shown in fig. 3, the track signal code transmitting unit comprises a bus interface unit, a control unit, a digital frequency synthesis unit, a power amplifying unit and a power supply unit, wherein the bus interface unit, the control unit, the digital frequency synthesis unit and the power amplifying unit are sequentially connected in series, and the power supply unit is connected with the bus interface unit and the power amplifying unit; the bus interface unit is electrically connected with the power amplification unit and the vehicle-mounted equipment TCR unit. The computer sends control instructions generated by the center frequency and the low-frequency to the control unit through the RS485 bus, the control unit adopts an embedded microcontroller, the model of the embedded microcontroller adopts C8051F120, the control instructions of the computer are received, and track signals of corresponding systems are generated according to the control instructions; the digital frequency synthesis unit adopts a digital frequency synthesis chip, the model adopts AD9854, the FSK track signals with corresponding center frequency and low frequency are generated according to the control of the control unit, the power amplification unit amplifies the FSK track signals with the center frequency and the low frequency, the model adopts OPA549, the chip model is further output to an interface of the TCR unit of the vehicle-mounted equipment, and the track signals are loaded to the TCR unit. In particular, the method comprises the 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 vehicle-mounted device TCR unit is a 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, and the MVB master station unit is connected with the computer through a network cable, so that a closed loop for detecting the TCR unit of the vehicle-mounted device is integrally formed.
Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.
Claims (2)
1. The intelligent detection method for the functions of the TCR unit of the vehicle-mounted equipment is characterized by comprising the following steps of:
s1: the central frequency and the low frequency are processed by the computer in coding sequence, wherein the coding of the central frequency is marked as A n The code of the low frequency is denoted as B m The method comprises the steps of carrying out a first treatment on the surface of the n is 1 to 8, m is 1 to 18;
s2: the method comprises the steps that a computer automatically and circularly sends a coding sequence with center frequency and low frequency in the step S1 to a track signal code sending unit, the track signal code sending unit transmits data to a vehicle-mounted device TCR unit, the vehicle-mounted device TCR unit receives the data and then sends the data to a connected host unit, the host unit simultaneously receives the data, and the host unit analyzes and generates corresponding track signals and displays the corresponding track signals on a display screen of the host unit;
s3: the host unit is connected with an MVB master station unit, and is a hostThe unit encodes the generated track signal and simultaneously transmits the encoded signal to the MVB master unit, the MVB master unit transmits the encoded information to a computer, and the computer decodes the received encoded information and processes the recoding sequence, wherein the recoding of the center frequency is recorded as A' n Recoding of low frequency frequencies is denoted as B' m The method comprises the steps of carrying out a first treatment on the surface of the n is 1 to 8, m is 1 to 18;
s4: the computer automatically compares 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; if the comparison codes are inconsistent, the detection is finished, and an error result is displayed; if the comparison codes are consistent, executing a step S5;
s5: the computer judges whether the coding of the center frequency and the low frequency is circularly executed for one time, if the execution is finished, the detection is finished; if the execution is not completed, step S2, step S3, and step S4 are sequentially executed.
2. The intelligent detection method for TCR unit functions of vehicle-mounted equipment according to claim 1, wherein: the track signal code transmitting unit comprises a bus interface unit, a control unit, a digital frequency synthesis unit, a power amplifying unit and a power supply unit, wherein the bus interface unit, the control unit, the digital frequency synthesis unit and the power amplifying unit are sequentially connected in series, and the power supply unit is connected with the bus interface unit and the power amplifying unit; the bus interface unit is electrically connected with the power amplification unit and the vehicle-mounted equipment TCR unit.
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