CN104598943B - Transponder reading-writing method and device - Google Patents
Transponder reading-writing method and device Download PDFInfo
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- CN104598943B CN104598943B CN201510052626.1A CN201510052626A CN104598943B CN 104598943 B CN104598943 B CN 104598943B CN 201510052626 A CN201510052626 A CN 201510052626A CN 104598943 B CN104598943 B CN 104598943B
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Abstract
The invention discloses a transponder reading-writing method and device. The method comprises reading operation under a conventional mode and reading-writing operation under a programming mode. The reading-writing operation under the programming mode comprises the following steps: (1) the transponder reading-writing device opens a first frequency wireless signal to provide a power supply to a transponder and a second frequency wireless signal is opened; (2) after the transponder detects a wireless signal in a second frequency range, the transponder enters the programming mode and transmits a fixed sequence FSK handshaking signal to the transponder reading-writing device; (3) after the transponder reading-writing device receives the FSK handshaking signal, an instruction and data, which need to be transmitted, are coded and are modulated with the first frequency wireless signal; (4) the transponder reading-writing device transmits the modulated signal to the transponder through the first frequency wireless signal; and (5) after the transponder receives the first frequency wireless signal with the instruction and the data, the first frequency wireless signal is demodulated and decoded, and information of first frequency is restored and then is subjected to reading or writing operation according to instruction information.
Description
Technical field
The present invention relates to railway transponder technology field.
Background technology
Effect of the transponder in China railways operation in recent years is more and more important, application more and more extensively, and can not or
The maintenance work of scarce transponder becomes more and more important, and transponder is safeguarded for convenience, needs special transponder
Reading and writing instrument such as is read accordingly, is write at the maintenance work to it.At present, transponder and the response supporting with transponder are produced
The producer of device Reading and writing instrument is more and more, for the reliability and safety for ensureing to communicate, needs special transponder read and write work
Tool is written and read operation to transponder, while have between special transponder read and write device and supporting transponder specifically communicating
Mode, it is to avoid the transponder read and write device of other producers carries out rewriting operation to transponder.
If the wireless signal that existing transponder read and write device sends is unstable, such as signal energy is too small, and it is right to cause
The write operation of transponder is unsuccessful, or mistake occurs in the information of reading transponder；And energy is excessive, the wave of electric energy can be caused
Expense can cause crosstalk simultaneously, cause other transponder mistake read-write operations, affect normally using for transponder.
The content of the invention
The technical problem to be solved is to provide a kind of transponder read and write method and its read-write equipment, energy of the present invention
The wireless signal that enough control sends is in certain energy range, it is ensured that signal stabilization, read-write is accurate, it is ensured that the safety of read-write communication
Property and reliability, it is ensured that transponder normal work；So that it is guaranteed that the normal operation of Railroad Communication System；Present configuration and operation
Simply, conveniently, it is safe and reliable.
To solve above-mentioned technical problem, the technical solution used in the present invention is：
A kind of transponder read and write method, including the read operation under normal mode and the read-write operation under programming mode；
Read operation under the normal mode is：Transponder read and write device sends the wireless signal of first frequency to transponder,
For activating transponder, while the fsk signal that transponder read and write device receives transponder transmission is demodulated, and according to message
Coding rule carries out decoding process；
Read-write operation under the programming mode is：
（1）Transponder read and write device opens the first frequency range wireless signal and provides power supply for transponder, while opening the second frequency
Rate wireless signal；
（2）Transponder enters programming mode after the wireless signal for detecting second frequency scope, to transponder read and write dress
Put the FSK handshake for sending fixed sequence program；
（3）Transponder read and write device is received after FSK handshake, it would be desirable to which the instruction and data of transmission is encoded, and
It is modulated with the wireless signal of first frequency；
（4）Signal after modulation is sent to transponder by transponder read and write device by the wireless signal of first frequency；
（5）Transponder is received and demodulated and decoded after the wireless signal of the first frequency with instruction and data, and
After by the information reverting of first frequency, read or write is performed according to command information.
Further technical scheme, the first frequency is 27.095MHz, and second frequency is 9.032MHz.
Further technical scheme, the step（3）In be modulated to ASK modulation.
Further technical scheme, in coding, the coding formula of " 1 " is 10t≤T≤18t in step (3), the volume of " 0 "
Code formula is 24t≤T≤32t, wherein " T " is low level time width, " t " is the μ s of unit time width 1.77.
A kind of transponder read and write device, including host computer and electronic box, the electronic box includes that power subsystem, detection are single
Unit, power amplifier unit, antenna element, processor unit, demodulating unit, interface unit and man-machine interaction unit；The power subsystem
Power for unit；The processor unit is connected by interface unit with host computer, the power amplifier unit, demodulating unit,
Man-machine interaction unit is connected respectively with processor unit, and the antenna element is connected respectively with power amplifier unit and demodulating unit；Institute
State detector unit to be connected with power amplifier unit, the energy for sending power amplifier unit signal is detected, and testing result is sent out
Give processor unit.
Further technical scheme, the antenna element include 27.095MHz and 4.234MHz duplexed antennas and
9.032MHz antenna.
Further technical scheme, the detector unit includes that 27.095MHz energy extraction units, 9.032MHz energy are carried
The input for taking unit and AD sampling units, the 27.095MHz energy extraction units and 9.032MHz energy extraction units is equal
It is connected with the output end of power amplifier unit, the output end of 27.095MHz energy extraction units and 9.032MHz energy extraction units is equal
It is connected with the input of AD sampling units, the output end of AD sampling units is connected with processor unit.
Further technical scheme, the demodulating unit includes that bandpass filtering unit, demodulation control unit, data are relatively put
Big unit compares amplifying unit with point is crossed, and the bandpass filtering unit input is connected with antenna element, and bandpass filtering unit is defeated
Go out end to be connected with demodulation control unit, the output end of the demodulation control unit compares respectively amplifying unit with data and crosses point ratio
Compared with amplifying unit connection, data compare amplifying unit and mistake point compares amplifying unit and is connected with processor unit respectively.
Further technical scheme, the demodulation control unit is using MC13055D as demodulation chip.
It is using the beneficial effect produced by above-mentioned technical proposal：The transponder of the present invention exists with transponder read and write device
Sending carries out again the communication of data and instruction after handshake, improve the operating efficiency and availability of equipment, it is ensured that communication
Safety and reliability；It is modulated again after the instruction of transponder read and write device transmission is encoded, on the one hand improves communication
Safety and reliability, while also providing stable energy for transponder, it is ensured that the normal work of transponder；The present invention
Transponder read and write device be provided with detector unit, can the energy size of signal that sends of real-time detection power amplifier unit, will detect
As a result it is sent to after processor unit, processor unit can detect the wireless signal of transmission in certain energy range, it is ensured that
The signal of communication energy normal in size that programming tool sends, so that it is guaranteed that the stability and reliability of communication.Present configuration and
It is simple, convenient, it is safe and reliable.
Description of the drawings
Fig. 1 is not carry out code modulated oscillogram；
Fig. 2 is coding principle figure of the present invention；
Fig. 3 is that the present invention carries out code modulated oscillogram；
Fig. 4 is transponder read and write apparatus structure schematic diagram of the present invention；
Fig. 5 is detector unit structural representation of the present invention；
Fig. 6 is demodulating unit structural representation of the present invention；
Fig. 7 is inventive antenna structural representation；
In the accompanying drawings：1st, 27.095MHz and 4.234MHz duplexed antennas, 2,9.032MHz antennas.
Specific embodiment
With reference to the accompanying drawings and detailed description the present invention is further detailed explanation.
A kind of communication means under transponder read and write method, including the communication means and programming mode under normal mode.
Only carry out message reading under normal mode, i.e., transponder read and write device sends the wireless signal of 27.095MHz to should
Device is answered, for activating transponder, while the fsk signal that transponder read and write device receives transponder transmission is demodulated, and according to
The coding rule of message carries out decoding process.
Write operation and read operation can be carried out under programming mode：
（1）Transponder read and write device opens 27.095MHz wireless signals and provides power supply for transponder, while opening
9.032MHz wireless signals, 9.032MHz signals enter the indication signal of programming mode as transponder；
（2）Transponder enters programming mode after the wireless signal for detecting 9.032MHz scopes, to transponder read and write dress
Put the FSK handshake for sending " 11000000 ... 11000000 " sequence immediately；
(3) transponder read and write device is received after FSK handshake, starts to send instruction and data to transponder.Due to letter
Breath is sent by the signal of ASK, while carrier frequency is 27.095MHz signals, this signal is simultaneously to provide power supply for transponder
Wireless energy signal.As shown in figure 1,（a）For base band data,（b）For the signal after ASK modulation, when ASK is modulated number is being sent
According to for 1 when, have a 27.095MHz signals, and when data 0 are sent, without 27.095MHz signals.So may result in as transponder
The energy of offer reduces, and affects transponder normal work.Therefore be designed for this kind of situation, by the instruction sum of required transmission
According to being encoded in advance, will data " 1 " and " 0 " encoded according to Fig. 2, the coding formula of " 1 " is 10t≤T≤18t, " 0 "
Coding formula be 24t≤T≤32t, wherein " T " represents low level time width, " t " represents the μ s of unit time width 1.7.
This reduces dutycycle when " 0 ", it is ensured that provide enough and stable energy for transponder.Waveform after coded modulation is such as
Shown in Fig. 3, in Fig. 3,（a）For base band data,（c）For coded data, it would be desirable to the instruction and data and 27.095MHz of transmission
Wireless signal encoded in the manner described above after, then ASK modulation is carried out, in the such as Fig. 3 of the signal after modulation（d）Institute
Show；
(4) signal after modulation is sent to transponder by transponder read and write device；
(5) transponder is received and demodulated and decoded after the 27.095MHz wireless signals with instruction and data, and will
According to command information after base-band information reduction, read or write is performed.
Transponder read and write device has text of reading the newspaper, writes message, write company-information, read company-information, initialization transponder work(
Energy.Text of wherein reading the newspaper refers to reading transponder message in normal mode, writes message, writes company-information, initialization transponder all
It is to refer to the write operation under programming mode in the write operation of programming mode.Write message mainly to complete that message coding rule will be met
Message write transponder；Company-information is write mainly by the information write such as production numbering, version number, date transponder；Initialization
The message storage area of transponder is mainly initialized as " 1001 ... 1001 ... 100 " specific non-effective message numbers by transponder
According to effective message of removing transponder memory block.It is the read operation under programming mode to read company-information, mainly completes to read
Company-information in transponder.
As shown in figure 4, a kind of transponder read and write device, including host computer and electronic box, electronic box includes power subsystem, inspection
Survey unit, power amplifier unit, antenna element, processor unit, demodulating unit, interface unit and man-machine interaction unit.Host computer is
Main frame, electronic box is slave.
Host computer mainly realizes that man-machine interaction, data processing, data and control command send.The order that host computer will be gathered
Framing process is carried out, and command frame is sent to into electronic box by serial ports, performed after the order of electronic box reception host computer corresponding
Operation.
Power subsystem realizes Power convert, mainly the cell voltage of 16.8V is converted to into each required for other modules
Magnitude of voltage, is that unit is powered.
Interface unit provides the interface circuit of host computer and electronic box, and interface unit is RS232 serial ports, and baud rate is
38400bps。
Processor unit is connected by interface unit with host computer, detector unit, power amplifier unit, demodulating unit, man-machine friendship
Mutually unit is connected respectively with processor unit.Processor unit mainly completes the communication with host computer, and foundation by FPGA realizations
The order control unit that host computer sends completes corresponding operation.
Detector unit realizes 27.095MHz wireless signals, the energy inspection of 9.032MHz wireless signals that power amplifier unit sends
Survey, it is ensured that the wireless signal normal in size that power amplifier unit sends.As shown in figure 5, detector unit includes 27.095MHz Energy extractions
Unit, 9.032MHz energy extraction units, AD sampling units, 27.095MHz energy extraction units and 9.032MHz Energy extractions
The input of unit is connected with the output end of power amplifier unit, and output end is connected with the input of AD sampling units, AD samplings
The output end of unit is connected with processor unit.Detector unit is sampled to the energy of 27.095MHz and 9.032MHz signals,
And judge whether the energy size that power amplifier is exported is normal according to sampled data.27.095MHz energy extraction units and
9.032MHz energy extraction units are respectively completed and 27.095MHz power amplifier units and 9.032MHz power amplifier unit output signals are carried
Take and convert thereof into direct current signal；AD sampling units mainly carry 27.095MHz energy extraction units and 9.032MHz energy
The direct current signal for taking unit output is sampled respectively, and output digit signals amount is sent to processor unit.
Demodulating unit completes the demodulation function that the transponder to receiving sends the fsk signal of 4.234MHz, while output connects
Receive the indication signal of transponder fsk signal.Power amplifier unit be mainly used in the 27.095MHz that amplification processor unit sends and
The signal of 9.032MHz, including 27.095MHz power amplifiers and 9.032MHz power amplifiers, are respectively used to amplification and are supplied to response
The 27.095MHz signals of device energy and the 9.032MHz signal powers for indicating programming mode.Demodulating unit is adopted
MC13055D completes the demodulation of transponder fsk signal as demodulation master chip, and output indication receives transponder FSK letters
Number indication signal.As shown in fig. 6, demodulating unit includes that bandpass filtering unit, demodulation control unit, data compare amplifying unit
With cross point compare amplifying unit, wherein demodulation control unit control chip be MC13055D, bandpass filtering unit input with
Antenna element connect, bandpass filtering unit output end with demodulation control unit be connected, demodulation control unit output end respectively with
Data compare amplifying unit and cross point compare amplifying unit connection, data compare amplifying unit and cross point compare amplifying unit difference
It is connected with processor unit.Wherein bandpass filtering unit mainly completes the interference signal for filtering 27.095MHz, extracts 4.234MHz
Fsk signal；MC13055D demodulating units complete the demodulation of the FSK to 4.234MHz, and the FSK letters of output indication 4.234MHz
Number strength signal；Data compare amplifying unit and complete to put the stablizing for base-band data signal of MC13055D demodulating units output
Compare greatly, final output digital baseband signal；Cross a little compare amplifying unit complete to MC13055D demodulating units export
The stable amplification of the fsk signal strength signal of 4.234MHz, and point switching value was exported by comparator, indicate whether to receive
The fsk signal of sufficiently large 4.234MHz.
Man-machine interaction unit is used to show battery electric quantity, the working condition of programming tool；Processor unit controls AD to electricity
Pond electricity carries out Real-time Collection, and indicates electricity according to sampled data, and simultaneous processor unit is according to whether open 27.095MHz
And 9.032MHz signals are showing the mode of operation of programming tool.
Antenna element is connected respectively with power amplifier unit and demodulating unit, and antenna element includes that 27MHz and 4.234MHz is duplexing
Antenna and 9.032MHz antennas, duplexed antenna mainly realizes the transmission of 27.095MHz signals, and receives what transponder sent
The fsk signal of 4.234MHz, and the fsk signal for receiving is sent to into demodulating unit is demodulated；9.032MHz antenna is main
Realize sending the 9.032MHz signals for indicating programming state during programming, in order to anti-interference, this antenna using the realization of eight word antennas, such as
Shown in Fig. 7.Interface unit is wave point, and host computer is wirelessly connected with electronic box.
The principle of this device is：
When being operated, command information is sent to processor unit by host computer by interface unit, and processor will refer to
Information is made to be sent to power amplifier unit, power amplifier unit is sent to command information by antenna element after being amplified to command information
Transponder, while power amplifier unit sends command information to detector unit carries out energy measuring, detector unit is by the big brief summary of energy
Fruit sends processor unit to, and processor unit completes the judgement of energy size, so as to detect that the energy that power amplifier unit sends is
It is no in certain energy range；
When read operation is carried out, antenna element receives the transponder information that transponder sends, and transponder information is sent
To demodulating unit, demodulating unit is sent to processor unit and processes after being demodulated to transponder information.
Claims (9)
1. a kind of transponder read and write method, it is characterised in that the read-write behaviour including the read operation under normal mode and under programming mode
Make；
Read operation under the normal mode is：Transponder read and write device sends the wireless signal of first frequency to transponder, uses
In activation transponder, while the fsk signal that transponder read and write device receives transponder transmission is demodulated, and according to the volume of message
Code rule carries out decoding process；
Read-write operation under the programming mode is：
（1）Transponder read and write device open the first frequency range wireless signal provide power supply for transponder, while opening second frequency without
Line signal；
（2）Transponder enters programming mode after the wireless signal for detecting second frequency scope, sends out to transponder read and write device
Send the FSK handshake of fixed sequence program；
（3）Transponder read and write device is received after FSK handshake, it would be desirable to which the instruction and data of transmission is encoded, and with
The wireless signal of one frequency is modulated；
（4）Signal after modulation is sent to transponder by transponder read and write device by the wireless signal of first frequency；
（5）Transponder is received and demodulated and decoded after the wireless signal of the first frequency with instruction and data, and by
Read or write is performed according to command information after the information reverting of one frequency.
2. a kind of transponder read and write method according to claim 1, it is characterised in that the first frequency is
27.095MHz, second frequency is 9.032MHz.
3. a kind of transponder read and write method according to claim 1, it is characterised in that the step（3）In be modulated to
ASK is modulated.
4. a kind of transponder read and write method according to claim 1, it is characterised in that in step (3) in coding " 1 "
Coding formula is 10t≤T≤18t, and the coding formula of " 0 " is 24t≤T≤32t, wherein " T " is low level time width,
" t " is the μ s of unit time width 1.77.
5. a kind of transponder read and write device that a kind of transponder read and write method as claimed in claim 1 is used, including it is upper
Machine and electronic box, it is characterised in that the electronic box includes power subsystem, detector unit, power amplifier unit, antenna element, processor
Unit, demodulating unit, interface unit and man-machine interaction unit；The power subsystem is powered for unit；The processor list
Unit be connected with host computer by interface unit, the power amplifier unit, demodulating unit, man-machine interaction unit respectively with processor unit
It is connected, the antenna element is connected respectively with power amplifier unit and demodulating unit；The detector unit is connected with power amplifier unit, is used for
The energy that signal is sent to power amplifier unit is detected, and testing result is sent to into processor unit.
6. a kind of transponder read and write device according to claim 5, it is characterised in that the antenna element includes
27.095MHz and 4.234MHz duplexed antennas and 9.032MHz antennas.
7. a kind of transponder read and write device according to claim 5, it is characterised in that the detector unit includes
27.095MHz energy extraction units, 9.032MHz energy extraction units and AD sampling units, the 27.095MHz Energy extractions
The input of unit and 9.032MHz energy extraction units is connected with the output end of power amplifier unit, 27.095MHz Energy extractions
The output end of unit and 9.032MHz energy extraction units is connected with the input of AD sampling units, the output of AD sampling units
End is connected with processor unit.
8. a kind of transponder read and write device according to claim 5, it is characterised in that the demodulating unit includes band logical filter
Ripple unit, demodulation control unit, data compare amplifying unit and excessively point compares amplifying unit, the bandpass filtering unit input
It is connected with antenna element, bandpass filtering unit output end is connected with demodulation control unit, the output end of the demodulation control unit
Compare amplifying unit with data respectively and cross point and compare amplifying unit and be connected, data compare amplifying unit and cross point and compare amplification list
Unit is connected respectively with processor unit.
9. a kind of transponder read and write device according to claim 8, it is characterised in that the demodulation control unit is adopted
MC13055D is used as demodulation chip.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510052626.1A CN104598943B (en) | 2015-02-02 | 2015-02-02 | Transponder reading-writing method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510052626.1A CN104598943B (en) | 2015-02-02 | 2015-02-02 | Transponder reading-writing method and device |
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| CN104598943A CN104598943A (en) | 2015-05-06 |
| CN104598943B true CN104598943B (en) | 2017-05-10 |
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| CN201510052626.1A Active CN104598943B (en) | 2015-02-02 | 2015-02-02 | Transponder reading-writing method and device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107819487B (en) * | 2017-11-30 | 2023-07-25 | 河南蓝信科技有限责任公司 | Portable transponder message reading tool and method |
| CN113022643B (en) * | 2021-03-23 | 2022-09-27 | 上海电气泰雷兹交通自动化系统有限公司 | Fault-oriented safety transponder detection system and method |
| CN113645659B (en) * | 2021-09-13 | 2024-03-01 | 北京铁路信号有限公司 | Transponder transmission system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201323574Y (en) * | 2008-12-31 | 2009-10-07 | 中国铁道科学研究院通信信号研究所 | Responder |
| CN102043977A (en) * | 2010-12-28 | 2011-05-04 | 深圳市远望谷信息技术股份有限公司 | Electronic tag for automatic identification of high-speed train |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2010303188B2 (en) * | 2009-10-09 | 2014-12-04 | Allflex Australia Pty Limited | HDX demodulator |
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2015
- 2015-02-02 CN CN201510052626.1A patent/CN104598943B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201323574Y (en) * | 2008-12-31 | 2009-10-07 | 中国铁道科学研究院通信信号研究所 | Responder |
| CN102043977A (en) * | 2010-12-28 | 2011-05-04 | 深圳市远望谷信息技术股份有限公司 | Electronic tag for automatic identification of high-speed train |
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