CN208508933U - A kind of multichannel transponder message transmitting device - Google Patents
A kind of multichannel transponder message transmitting device Download PDFInfo
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- CN208508933U CN208508933U CN201821346921.3U CN201821346921U CN208508933U CN 208508933 U CN208508933 U CN 208508933U CN 201821346921 U CN201821346921 U CN 201821346921U CN 208508933 U CN208508933 U CN 208508933U
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Abstract
A kind of multichannel transponder message transmitting device is realized to ground transponder energy transmitting, ground transponder message information wireless receiving, information reliable transmission；The automatic guide secure side when some unit failure of equipment, equipment loses the control for influencing train operation control system to train by the onboard control devices of other normal channel real-time Transmissions to rear end, to avoid receiving transponder message information caused by because of individual equipment failure.Equipment includes on-vehicle host, car antenna, and on-vehicle host is connect with car antenna by coaxial cable；Wherein on-vehicle host includes binary channels power amplifier module, multichannel receiving module, band-wise processing module, data board, power panel and bus board, and each module of on-vehicle host is connected by bus board；The utility model advantage, equipment are designed using multi-channel moduleization, and on-vehicle host processing module takes two and Dual-path backup architecture design using two, are improved device security, reliability, can be safeguarded.
Description
Technical field
The invention belongs to rail traffic security control application fields, are specifically related to a kind of multichannel transponder message transmissions
Device.
Background technique
In the development process of railway transportation, transportation safety is the topic that people most pay close attention to always.With national economy pair
Railway transportation requires to be continuously improved, and railroad train operational management and security control requirements are also continuously improved.Railroad reference
BisexualArtemiapopulations from China has been worked out in the requirement of ERTMS/ETCS (Europe transportation management system/European Train Control System)
Standard (CTCS standard).In this standard, BTM (Balise Transmission Module) is as activation, reception, solution
Analysis ground transponder send message information and safe and reliable, real-time Transmission to onboard control device (such as: LKJ or ATP) play to
Close important role.
Currently, when train running speed, density are continuously improved, to the accuracy of BTM equipment, safety, reliable
Property and availability improve higher requirement.Because transmission channel is few, the single unit failure of equipment may will be led existing BTM equipment
BTM global failure is caused, and due to the problems such as BTM device components quantity is more and external interference, BTM is deposited at work
It is received in transponder message and transmits undesirable probability, may cause loss transponder information.And transponder information loss will affect
Control of the train operation control system to train, can trigger train braking when serious, to influence the traffic safety and fortune of railway
Defeated efficiency.
Summary of the invention
The object of the present invention is to provide a kind of multichannel transponder message transmitting devices, realize and send out ground transponder energy
It penetrates, ground transponder message information wireless receiving, information reliable transmission；The automatic guide safety when some unit failure of equipment
Side, equipment is by the onboard control devices of other normal channel real-time Transmissions to rear end, to avoid making because of individual equipment failure
The control for influencing train operation control system to train is lost at transponder message information is received.
To achieve the above object, the invention adopts the following technical scheme:
A kind of multichannel transponder message transmitting device, including on-vehicle host, car antenna, wherein on-vehicle host includes double
Channel power amplifier module, multichannel receiving module, band-wise processing module, data board, power panel and bus board；The on-vehicle host
It is connect with car antenna by coaxial cable；Binary channels power amplifier module, the multichannel receiving module, multichannel of the on-vehicle host
Processing module, data board and power panel are electrically connected by bus board；
The on-vehicle host is sent to ground transponder through car antenna for generating 27.095Mhz energy signal, simultaneously
The ground transponder of car antenna transmission is sent into 4.2Mhz transponder message signals and is transmitted to external vehicle-mounted control after processing
Equipment；
The car antenna receives ground transponder and sends 4.2Mhz for receiving 27.095Mhz energy signal and emitting
Radiofrequency signal is simultaneously converted to electric signal transmission to on-vehicle host；
The binary channels power amplifier module will connect for generating 27.095Mhz energy signal and exporting to car antenna
It receives transponder message signals and is transmitted to multichannel receiving module after binary channels filters；
The multichannel receiving module is used to each channel transmission signal of binary channels power amplifier module carrying out two-way solution respectively
Four road demodulating informations are exported after tune and are transmitted to band-wise processing module；
The band-wise processing module is used to transmit multichannel receiving module four road demodulating informations through eight channel-decodeds, every
External onboard control device is transmitted to after two-way output judgement；
The data board, for recording each module self-test information, communications status information, message information, device status information,
The order control power board for receiving maintenance software simultaneously is switched on or off RF energy；
Working power needed for the power panel is used to vehicle-mounted input power being converted to each module of on-vehicle host, while to electricity
The input voltage in source, output voltage, power panel environment temperature be acquired and be transmitted to data board；The power panel is taken double
Link redundancy backup mode designs, and every road power supply can stand alone as complete machine power supply；
The bus board is for data communication, the switching of power supply power supply channel interface between each module of on-vehicle host.
The binary channels power amplifier module, by interface circuit, Detection & Controling circuit, power circuit, power amplification circuit and
Binary channels filter circuit composition；
The interface circuit is respectively car antenna interface, multichannel receiving module interface, bus card and board shape
State indicates interface；The car antenna interface, is electrically connected by cable and car antenna；The multichannel receiving module connects
Mouthful, for the fsk signal after accepting filter to be transmitted to multichannel receiving module；The bus card is used for and other plates
Cartoon letters and power input；The board state indicates interface, is used to indicate the working condition of power board；
The binary channels power amplifier module Detection & Controling circuit, including current detection circuit, power tube temperature sensing circuit,
Ouput power detection circuit for the operating status of real-time monitoring power amplifier link, while will test and be sent to data board in information, inspection
Power amplifier output is closed when measurement information exception；
The power amplification circuit, including the amplification of signal generating circuit, level-one amplifying circuit, second amplifying circuit, three-level
Circuit, transmission channel filter circuit, for generating 27.095MHz signal, and to generation 27.095MHz signal after multistage amplification
It is transmitted to transmission channel bandpass filter, transmission channel bandwidth-limited circuit filters out the harmonic signal of frequency of oscillation and prevents to receive
To centre frequency be 4.2MHz signal enter transmission channel, be then transmitted to car antenna through antenna cables；
The binary channels filter circuit, for receiving car antenna transmission 4.2Mhz signal, protection electrostatic impact, interference letter
Fsk signal is simultaneously transmitted to multichannel receiving module after being filtered to the 27.095MHz signal of setting bandwidth by number filtering.
The multichannel receiving module shares two-way input using Redundancy Design, and every road input is divided into after two-way respectively
Signal demodulation shaping is carried out, demodulation tetra- road signal of Hou is then transmitted to band-wise processing module by bus board；Simultaneously
Every road input signal filtered, demodulate after make decisions, for carrying out transponder detection, physical cross talk and threshold value judgement；
The multichannel receiving module, including filter circuit, demodulator circuit, shaping circuit, interface conversion circuit and signal
Decision circuit；
The filter circuit, including electrostatic discharge protective circuit, bandwidth-limited circuit；The electrostatic discharge protective circuit uses low capacitor
Bi-directional electrostatic protection diode is protected；The filter circuit uses active bandpass filiter circuit；
The shaping circuit puts shaping circuit using four road transports, respectively to the amplification of original demodulated signal, clutter filtering, letter
Number secondary amplification and voltage compare output, final output standardized digital signal；
The signal decision circuit is sentenced according to demodulator circuit output signal level size or FSK message signals quality
It is disconnected whether to there is transponder to be detected；The signal decision circuit, will be defeated according to setting threshold value by double threshold comparator
Enter two paths of signals to be compared respectively, give up if FSK message signals all the way are unsatisfactory for setting value, while using instead in addition all the way
FSK message input signal；
It is connected between the multichannel receiving module and binary channels power amplifier module by coaxial cable.
The band-wise processing module, use two take two framework, by four pieces of independent process board groups at two pieces of processing boards are made
For a pair, failure all the way in each pair of processing board is switched to another pair of processing board by manual or automatic；
The processing board has two-way input channel, including decoding circuit, CPU processing circuit, external interface circuit, bottom plate
Interface circuit and power circuit；
The processing board, every road input signal is transmitted to decoding circuit through backplane interface circuitry and is decoded, decoded
Signal is transmitted to CPU processing circuit and is handled, while CPU processing circuit receives the transponder inputted from multichannel receiving module
Detectable signal, CPU processing circuit by defined communications protocol pass through external interface circuit after being handled the signal received
It is transmitted to external onboard control device；
The decoding circuit, using the decoding to two-way incoming message level signal respectively of two panels high speed processing chip, warp
Decoded signal is transmitted to CPU processing circuit；
The CPU processing circuit, using dual processors handle and meanwhile export, single processing module in such a way that two take two, and
It is designed using Dual-path backup, two CPU are exported simultaneously；
The external interface circuit, including isolation circuit and interface circuit；The isolation circuit, for inside and outside communication interface
The isolation of portion's control line；The interface circuit is converted for communication interface format；
The backplane interface circuitry is used to the signal that multichannel receiving module transmits changing into level signal, and level is believed
Number it is output to decoding circuit；Meanwhile band-wise processing module by backplane interface circuitry, bus board and binary channels power amplifier module,
Data board is communicatively coupled；
Further, the backplane interface circuitry include data transfer, transponder detection input, transponder CAN it is total
Line conversion circuit, RS485 bus switching circuit, power input, address input；The data transfer, is divided into two-way, will be more
The signal level of channel reception module output is converted to decoding circuit desired signal level；The CAN bus conversion circuit, will
The two-way incoming level signal of CPU is converted to the CAN bus level signal of standard；The CAN bus is distinguished by backplane bus
It is connected with binary channels power amplifier module, data board；The RS-485 bus switching circuit, by the output serial ports level signal of CPU
Be converted to the RS-485 bus level signal of standard；The address inputs, and configures differently on bus board in processing board interface
Location, processing board CPU determine the slot position of processing board by reading the address information on bus board；
The band-wise processing module, when receiving the order of external onboard control device control power amplifier switch, by CPU
Control command information is transmitted to multi-channel power amplifier module by bus board by processing circuit, controls power amplifier by multi-channel power amplifier module
Output.
The data board, including backplane interface circuitry, storage circuit, CPU processing circuit, external interface circuit, power supply electricity
Road；The data board, by backplane interface circuitry through bus board respectively with binary channels power amplifier module, multichannel receiving module, more
Channel processing module is communicatively coupled；
The backplane interface circuitry, for data board power interface input, with the other module communication interfaces of on-vehicle host and
Interface conversion；The backplane interface circuitry, including CAN bus conversion circuit, RS-485 bus switching circuit, power input；Institute
CAN bus conversion circuit is stated, realizes the conversion between the CAN signal and standard CAN bus of CPU two-way level；The RS-485
Bus switching circuit realizes the conversion between the rs 232 serial interface signal and standard RS-485 bus of mono- road Transistor-Transistor Logic level of CPU；
The storage circuit records the status information and data information of each module of on-vehicle host；Preferably, the storage electricity
Road selects solid state hard disk as memory device；
The CPU processing circuit, for realizing communicating with each module of on-vehicle host, recording information processing and record data
Read-write operation；
The external interface circuit, including ethernet interface circuit, usb circuit；The ethernet interface circuit, if
Be equipped with network transformer, protective device to transmission signal be isolated, electrostatic protection handle, for carrying out letter with external host computer
Breath interaction；The USB circuit is used for data download operation, reads the equipment operation information that data board saves, while can pass through
The interface realizes the program upgrading of equipment correlation module；
The power circuit, design have circuit capable of delaying disconnection that can provide the standby of short time after device powers down for veneer
Power supply guarantees logging modle working condition and records the integrality of information；Preferably, the circuit capable of delaying disconnection is super capacitor
Charge-discharge circuit, for providing the backup power supply of short time when module power-off, to complete the ongoing operation of system, closing system
It unites and records shutdown information and electric energy is provided.
The present invention by adopting the above technical scheme, it has the advantage that
(1) present invention is passed using multi-channel redundant technology, signal control technology, multiple spot automatic measurement technique, signals security
Transferring technology etc. realizes and to reception transponder message signals reliable, safe transmission, guarantee energy activated to ground transponder signal
Equipment is oriented to secure side when single component breaks down, while meeting equipment high reliability, availability, maintainable demand.
(2) on-vehicle host processing module of the present invention takes two and Dual-path backup design using two, by decoded output data
Two take two comparative analyses to improve output data accuracy, safety, are designed by Dual-path backup, improve equipment availability.
(3) present invention uses modularization open structure design, and each module uses single or multiple independent board plug structures, easily
With correlation system interface, while facilitate plant maintenance, maintenance.
(4) present invention design multilayer detects safeguard procedures, carries out detection judgement automatically when some unit failure of equipment, prevents
Only because equipment failure itself causes output error message to be transferred to external onboard control device.
(5) present invention designs multiple and different maintenance interfaces, can be convenient by dedicated maintenance tool and maintenance software
Inquiry, downloading fault message, are convenient for plant maintenance.
(6) power circuit design of the present invention has circuit capable of delaying disconnection, and equipment system is caused when preventing external power supply from powering off suddenly
The problems such as system file corruption, data write operation abnormal interrupt cause error in data or cause equipment damage.
Detailed description of the invention
Fig. 1 is device structure Fig. 1 of the invention.
Fig. 2 is device structure Fig. 2 of the invention.
Fig. 3 is flow chart of data processing figure of the invention.
Specific embodiment
With reference to the attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention is described, and is retouched
The embodiment stated is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
As shown in Figure 1 and Figure 2, a kind of multichannel transponder message transmitting device, including on-vehicle host 101, car antenna
102, wherein on-vehicle host 101 include binary channels power amplifier module 103, multichannel receiving module 104, band-wise processing module 105,
Data board 106, power panel 107 and bus board 108；The on-vehicle host 101 is connect with car antenna 102 by coaxial cable；
The binary channels power amplifier module 103 of the on-vehicle host 101, multichannel receiving module 104, band-wise processing module 105, data board
106 and power panel 107 be electrically connected by bus board 108；
The on-vehicle host 101 is sent to ground response through car antenna 102 for generating 27.095Mhz energy signal
Device 109, while the ground transponder 109 that car antenna 102 transmits is sent into 4.2Mhz transponder message signals and is passed after processing
Transport to external onboard control device 110；
The car antenna 102 receives ground transponder 109 and sends for receiving 27.095Mhz energy signal and emitting
4.2Mhz radiofrequency signal is simultaneously converted to electric signal transmission to on-vehicle host 101；
The binary channels power amplifier module 103 is for generating 27.095Mhz energy signal and exporting to car antenna 102, together
When by receive transponder message signals multichannel receiving module 104 is transmitted to after binary channels filters；
The multichannel receiving module 104 for carrying out each channel transmission signal of binary channels power amplifier module 103 respectively
Four road demodulating informations are exported after two-way demodulation and are transmitted to band-wise processing module 105；
The band-wise processing module 105 is used to multichannel receiving module 104 transmitting four road demodulating informations through eight channels
External onboard control device 110 is transmitted to after decoding, the output judgement of every two-way；
The data board 106, for recording each module self-test information, communications status information, message information, equipment state letter
Breath, while the order control power board for receiving maintenance software is switched on or off RF energy；
The power panel 107 is for working power needed for vehicle-mounted input power is converted to each module of on-vehicle host 101, together
When the environment temperature of the input voltage of power supply, output voltage, power panel 107 is acquired and is transmitted to data board 106；It is described
Power panel 107 takes two-way redundancy backup mode to design, and every road power supply can stand alone as complete machine power supply；
The bus board 108 is for data communication, the switching of power supply power supply channel interface between each module of on-vehicle host 101.
The binary channels power amplifier module 103, by interface circuit, Detection & Controling circuit, power circuit, power amplification circuit
It is formed with binary channels filter circuit；
The interface circuit is respectively car antenna interface, multichannel receiving module interface, bus card and board shape
State indicates interface；The car antenna interface, is electrically connected by cable and car antenna 102；The multichannel receives mould
Block interface, for the fsk signal after accepting filter to be transmitted to multichannel receiving module 104；The bus card, for and
Other board communications and power input；The board state indicates interface, is used to indicate the working condition of power board；
The 103 Detection & Controling circuit of binary channels power amplifier module, including current detection circuit, power tube temperature detection electricity
Road, ouput power detection circuit for the operating status of real-time monitoring power amplifier link, while will test and be sent to data board in information
106, power amplifier output is closed when detection information exception；
The power amplification circuit, including the amplification of signal generating circuit, level-one amplifying circuit, second amplifying circuit, three-level
Circuit, transmission channel filter circuit, for generating 27.095MHz signal, and to generation 27.095MHz signal after multistage amplification
It is transmitted to transmission channel bandpass filter, transmission channel bandwidth-limited circuit filters out the harmonic signal of frequency of oscillation and prevents to receive
To centre frequency be 4.2MHz signal enter transmission channel, be then transmitted to car antenna 102 through antenna cables；
The binary channels filter circuit transmits 4.2Mhz signal for receiving car antenna 102, and protection electrostatic impact is done
Fsk signal is transmitted to multichannel receiving module after disturbing signal filtering and being filtered to the 27.095MHz signal of setting bandwidth
104；Preferably, the binary channels filter circuit filters interference signal, especially filters to 27.095Mhz interference signal
Wave.
The multichannel receiving module 104 shares two-way input using Redundancy Design, and every road input divides after being divided into two-way
Not carry out signal demodulation shaping, demodulation tetra- road signal of Hou is then transmitted to band-wise processing module by bus board 108
105；Simultaneously every road input signal filtered, demodulate after make decisions, sentence for carrying out transponder detection, physical cross talk and threshold value
Certainly；
The multichannel receiving module 104, including filter circuit, demodulator circuit, shaping circuit, interface conversion circuit and letter
Number decision circuit；
The filter circuit, including electrostatic discharge protective circuit, bandwidth-limited circuit；The electrostatic discharge protective circuit uses low capacitor
Bi-directional electrostatic protection diode is protected；The filter circuit uses active bandpass filiter circuit；
The shaping circuit puts shaping circuit using four road transports, respectively to the amplification of original demodulated signal, clutter filtering, letter
Number secondary amplification and voltage compare output, final output standardized digital signal；
The signal decision circuit is sentenced according to demodulator circuit output signal level size or FSK message signals quality
It is disconnected whether to there is transponder to be detected；The signal decision circuit, will be defeated according to setting threshold value by double threshold comparator
Enter two paths of signals to be compared respectively, give up if FSK message signals all the way are unsatisfactory for setting value, while using instead in addition all the way
FSK message input signal；
It is connected between the multichannel receiving module 104 and binary channels power amplifier module 103 by coaxial cable.
The band-wise processing module 105, use two take two framework, by four pieces of independent process board groups at two pieces of processing
For plate as a pair of, failure all the way in each pair of processing board is switched to another pair of processing board by manual or automatic；
The processing board has two-way input channel, including decoding circuit, CPU processing circuit, external interface circuit, bottom plate
Interface circuit and power circuit；
The processing board, every road input signal is transmitted to decoding circuit through backplane interface circuitry and is decoded, decoded
Signal is transmitted to CPU processing circuit and is handled, while the reception of CPU processing circuit is answered from what multichannel receiving module 104 inputted
Answer device detectable signal, CPU processing circuit by defined communications protocol passes through external interface after being handled the signal received
Circuit transmission is to external onboard control device 110；
The decoding circuit, using the decoding to two-way incoming message level signal respectively of two panels high speed processing chip, warp
Decoded signal is transmitted to CPU processing circuit；Preferably, the decoding circuit high speed processing chip is FPGA signal processing core
Piece；
The CPU processing circuit, using dual processors handle and meanwhile export, single processing module in such a way that two take two, and
It is designed using Dual-path backup, two CPU are exported simultaneously；
The external interface circuit, including isolation circuit and interface circuit；The isolation circuit, for inside and outside communication interface
The isolation of portion's control line；The interface circuit is converted for communication interface format；
Preferably, the interface circuit, including CAN communication interface circuit, RS485 communication interface circuit, wherein CAN communication
Interface is communicated with external onboard control device 110 respectively, and RS485 communication interface is external debugging interface；The CAN communication interface
CAN TX/RX signal is converted into the CAN bus format of standard by circuit；The RS485 communication interface circuit, RS-485TX/
RX signal is converted into RS-485 bus format；
The backplane interface circuitry is used to the signal that multichannel receiving module transmits changing into level signal, and level is believed
Number it is output to decoding circuit；Meanwhile band-wise processing module by backplane interface circuitry, bus board and binary channels power amplifier module,
Data board is communicatively coupled；
Further, the backplane interface circuitry include data transfer, transponder detection input, transponder CAN it is total
Line conversion circuit, RS485 bus switching circuit, power input, address input；The data transfer, is divided into two-way, will be more
The signal level that channel reception module 104 exports is converted to decoding circuit desired signal level；The CAN bus conversion circuit,
The two-way incoming level signal of CPU is converted to the CAN bus level signal of standard；The CAN bus passes through backplane bus point
It is not connected with binary channels power amplifier module 103, data board 106；The RS-485 bus switching circuit, by the output serial ports of CPU
Level signal is converted to the RS-485 bus level signal of standard；The address inputs, in processing board interface on bus board 108
Different address is configured, processing board CPU determines the slot position of processing board by reading the address information on bus board 108；
The band-wise processing module 105, when the order for receiving the external control of onboard control device 110 power amplifier switch
When, control command information is transmitted to by multi-channel power amplifier module by bus board 108 by CPU processing circuit, by multi-channel power amplifier
Module controls power amplifier output.
The data board 106, including backplane interface circuitry, storage circuit, CPU processing circuit, external interface circuit, power supply
Circuit；The data board 106, by backplane interface circuitry through bus board 108 respectively with binary channels power amplifier module 103, multichannel
Receiving module 104, band-wise processing module 105 are communicatively coupled；
The backplane interface circuitry, for data board power interface input, with the other module communication interfaces of on-vehicle host and
Interface conversion；The backplane interface circuitry, including CAN bus conversion circuit, RS-485 bus switching circuit, power input；Institute
CAN bus conversion circuit is stated, realizes the conversion between the CAN signal and standard CAN bus of CPU two-way level；The RS-485
Bus switching circuit realizes the conversion between the rs 232 serial interface signal and standard RS-485 bus of mono- road Transistor-Transistor Logic level of CPU；
The storage circuit records the status information and data information of each module of on-vehicle host 101；Preferably, described to deposit
Storage road selects solid state hard disk as memory device, and reading and writing data speed is fast, and high reliablity, service life are long；
The CPU processing circuit, for realizing being communicated with each module of on-vehicle host 101, recording information processing and record number
According to read-write operation；
The external interface circuit, including ethernet interface circuit, usb circuit；The ethernet interface circuit, if
Be equipped with network transformer, protective device to transmission signal be isolated, electrostatic protection handle, for carrying out letter with external host computer
Breath interaction, guarantees the stability and reliability of communication；The USB circuit is used for data download operation, reads data board 106 and protects
The system operation information deposited, while can realize that the program of equipment correlation module upgrades by the interface；The USB circuit increases
Protection chip is added to guarantee stable data communication；
The power circuit, design have circuit capable of delaying disconnection that can provide the standby of short time after device powers down for veneer
Power supply guarantees logging modle working condition and records the integrality of information；Preferably, the circuit capable of delaying disconnection is super capacitor
Charge-discharge circuit, for providing the backup power supply of short time when module power-off, to complete the ongoing operation of system, closing system
It unites and records shutdown information and electric energy is provided.
As shown in figure 3, step 201, on-vehicle host binary channels power amplifier module generates 27.095Mhz energy signal and passes through vehicle
It carries antenna to emit to ground transponder, ground transponder activates after receiving 27.095Mhz energy signal and emits 4.2Mhz response
Device message signals；Step 202, car antenna receives transponder message information and is converted to electric signal and passed by car antenna cable
Transport to on-vehicle host binary channels power amplifier module；Step 203, binary channels power amplifier module receives 4.2Mhz by binary channels filter circuit
Transponder message signals are simultaneously filtered 27.095Mhz signal, are then transmit to multichannel receiving module；Step 204, multi-pass
Road receiving module is divided into that four tunnels are demodulated, filter, amplify, voltage compares and level turns to receiving two-way input 4.2Mhz signal
It changes after processing and band-wise processing module is transmitted to by bus board；Step 205, band-wise processing module will input four tunnels demodulation letter
Number being divided into every two-way after eight tunnels are decoded, handle makes decisions, and judgement exports transponder message information and according to fixed after passing through
The communication protocol of justice is transmitted to external onboard control device.
The present invention also provides a kind of multichannel transponder message transmitting methods, comprising the following steps:
1., on-vehicle host binary channels power amplifier module power-on self-test pass through after generate 27.095Mhz energy signal, then pass through
Car antenna is launched；
2., car antenna real-time reception transponder transmitting message information, through binary channels power amplifier module binary channels filtering, multi-pass
Band-wise processing module is transmitted to after the demodulation of road receiving module four-way to be handled；
3., band-wise processing module will input four tunnel demodulated signals and is divided into every two-way progress after eight tunnels are decoded, handles
Judgement, judgement export transponder message information and are transmitted to external onboard control device according to the communication protocol of definition after passing through；
Binary channels power amplifier module detects power amplifier output simultaneously, and data board carries out detection to each module status information of equipment and to inspection
Measurement information, transmission information carry out record preservation, and export analysis is carried out in plant maintenance or maintenance.
In step 1, the on-vehicle host binary channels power amplifier module power-on self-test, after device power, binary channels power amplifier module
The self-test order of band-wise processing module transfer is received, binary channels power amplifier module self-test opens and supplies car antenna self-test power supply electricity
Pressure, binary channels power amplifier module antenna self-checking circuit start to emit the self-test message of 4.2M；Car antenna ring receives 4.2Mhz letter
By cable transmission to BTM on-vehicle host after number, the processing of BTM on-vehicle host judges whether self-test passes through, and self-test is by turning off certainly
It examines supply voltage and opens the output of 27.095Mhz energy signal, binary channels power amplifier module starts to work normally；Otherwise self-test is turned off
Supply voltage and external onboard control device is reported by on-vehicle host processing module；
The binary channels power amplifier module 27.095Mhz energy signal generates, and generates 27.095MHz electricity by crystal oscillator
Ordinary mail number, the level signal are connected to first order amplifier and amplify buffering, be then fed into second after LC low-pass filtering
The amplification of grade driving amplifier signal, the ultimate amplifier of the third level carry out signal amplification, and amplified 27.095Mhz signal is through power
Transmission channel bandpass filter is sent into after coupler, transmission channel bandpass filter filters out the harmonic signal of frequency of oscillation, simultaneously
Preventing the centre frequency that receives is that the signal of 4.2MHz enters transmission channel, after emitted channel bandpass filter
27.095MHZ signal is transmitted to car antenna by antenna cables and emits to ground transponder.
In step 2, the binary channels power amplifier module binary channels filtering, electrostatic discharge protective circuit, passive low pass including two-way
Filter circuit, active low-pass filter circuit；The binary channels power amplifier module binary channels filtering, the course of work are as follows: through car antenna
The transponder message signals of transmission are transmitted to passive low-pass filter circuit after electrostatic discharge protective circuit protection impact, through passive low pass
9 rank LC low-pass filters in filter circuit are transmitted to active filter circuit after being filtered to interference signal, by active power filtering
Circuit carries out the 27.095MHz signal of setting bandwidth to inhibit filter transmission at most channel reception module；The electrostatic protection is adopted
Electrostatic impact is protected with low-capacitance bidirectional electrostatic protection diode；The active filter circuit uses the voltage-controlled low pass filtered of second order active
Wave circuit；
The multichannel receiving module signal demodulation when work, receives power amplifier module by filter circuit and exports two-way
4.2Mhz signal is transmitted to demodulator circuit after fsk signal matching, filtering, amplification/attenuation and interface electrostatic protection；Solution
Adjust circuit the fsk signal of transmission is demodulated, transponder message information is reduced to digital signal and be transmitted to shaping circuit,
Signal decision circuit；The shaping circuit is filtered demodulated signal, amplifies, voltage compares processing, arranges the number for standard
Interface conversion circuit is transmitted to after word signal；Interface conversion circuit passes through bottom plate after Transistor-Transistor Logic level is converted to bus level signal
Bus transfer is to multichannel processing module；Meanwhile signal decision circuit samples input signal, is converted to level signal and send
Enter band-wise processing module to make decisions, judges whether transponder detection and FSK message signals quality meet established standards requirement.
In step 3, the band-wise processing module, to four tunnel of multichannel receiving module demodulation after transponder message data into
Row decodes and does two and takes two, and decoded message data packet is verified through CRC75, look for header, message filtering, TGM be converted into UDF and
After correlation data processing is errorless, is communicated according to the communications protocol and external onboard control device of definition and transmit data；
The band-wise processing module, use two take two framework, by four pieces of independent process board groups at two are used as one
Right, failure all the way in each pair of processing board is switched to another pair of processing board by manual or automatic；The processing board, there is two-way
Input channel, including decoding circuit, CPU processing circuit, external interface circuit, backplane interface circuitry and power circuit；
The processing board, every road input signal is transmitted to decoding circuit through backplane interface circuitry and is decoded, decoded
Signal is transmitted to CPU processing circuit and is handled, while CPU processing circuit receives the transponder inputted from multichannel receiving module
The signal received is repacked, is handled by detectable signal, CPU processing circuit, is assisted after CPU is handled by defined communication
View is transmitted to external onboard control device by external interface circuit；
Further, the decoding circuit, using two panels high speed processing chip respectively to two-way incoming message level signal
Decoding, message packet is converted into after decoded and is transmitted to CPU processing circuit；
Further, the CPU processing circuit is handled while being exported using dual processors, and single processing module takes two using two
Mode, and designed using Dual-path backup, two CPU export simultaneously；The CPU processing circuit is received when receiving multichannel
When the transponder monitoring signals of module input, CPU processing circuit is calculated the message package informatin that decoding circuit two-way exports and ratio
Compared with, than it is more consistent it is errorless after according to the communication format of regulation be sent to external interface circuit；If CPU is to the data after Message processing
It is less consistent, then give up；
Further, the CPU processing circuit controls the reset and configuration of decoding circuit, controls and monitors interface circuit
Input and output are enabled, supply voltage；
Further, the external interface circuit, including isolation circuit and interface circuit；The interface circuit, including CAN
Communication interface circuit, RS485 communication interface circuit, wherein CAN communication interface is communicated with external onboard control device respectively,
RS485 communication interface is external debugging interface；CAN TX/RX signal is converted into the CAN of standard by the CAN communication interface circuit
Bus format；RS-485TX/RX signal is converted into RS-485 bus format by the RS485 communication interface circuit；
Further, the backplane interface circuitry include data transfer, transponder detection input, transponder CAN it is total
Line conversion circuit, RS485 bus switching circuit, power input, address input；The data transfer, is divided into two-way, will be more
The signal level of channel reception module output is converted to decoding circuit desired signal level；The CAN bus conversion circuit, will
The two-way incoming level signal of CPU is converted to the CAN bus level signal of standard；The CAN bus is distinguished by backplane bus
It is connected with binary channels power amplifier module, data board；The RS-485 bus switching circuit, by the output serial ports level signal of CPU
Be converted to the RS-485 bus level signal of standard；The address inputs, and configures differently on bus board in processing board interface
Location, processing board CPU determine the slot position of processing board by reading the address information on bus board；
The band-wise processing module, when receiving the order of external onboard control device control power amplifier switch, by CPU
Control command information is transmitted to multi-channel power amplifier module by bus board by processing circuit, controls power amplifier by multi-channel power amplifier module
Output.
In step 3, the binary channels power amplifier module exports power amplifier and detects, including power amplifier output electric current measure, power tube
Temperature detection, power detection；The power amplifier output electric current measure, by concatenating accurate fixed resistance on the power line, by electric current
The voltage difference at detector acquisition precision resistance both ends is then fed into binary channels power amplifier module control circuit processor, by binary channels function
Amplification module control circuit processor calculates the supply current of power amplifier, when detect power amplifier supply current be more than setting limit value
When binary channels power amplifier module control circuit processor upload warning information to data board, binary channels power amplifier module receives data board
Power amplifier output is closed after closing power amplifier output order；
The power tube temperature detection, the temperature detector by designing installation near power tube acquire the hair of power tube
Hot temperature is simultaneously converted to electric signal, is then transmit to binary channels power amplifier module control circuit processor and is handled, when detecting
Control circuit processor uploads warning information to data board, binary channels power amplifier module when power tube heating temperature is more than setting limit value
It receives after data board closes power amplifier output order and closes power amplifier output；
The power detection, the transimission power and reflection power exported using three line directional couplers to power amplifier are sent to detection
Pipe carries out detection, and binary channels power amplifier module control circuit processor is then transmitted to after filter and amplification and is handled, if transmission
Power is less than or greater than setting value, then the output of binary channels power amplifier module control circuit processor uploads corresponding alarm signal to note
Plate is recorded, binary channels power amplifier module receives after data board closes power amplifier output order and closes power amplifier output；Preferably, the record
Plate monitors the switching information of power amplifier by 1 tunnel CAN communication, and software realization can be safeguarded to binary channels power amplifier mould by host computer
The operation of block close power amplifier；
The data board receives each module of on-vehicle host by communication interface on data board and uploads data information and state letter
Breath records system data information and carries out attended operation to system；The record information includes recording and saving the system runtime
Between communications status and message data, each single board state information, equipment self-inspection information and power amplifier open and close information；It is described to set
Standby attended operation, including system software or data upgrading, data are downloaded, operating status indicates and pass through maintenance software control bilateral
Road power amplifier module power amplifier output switch；The system software or data upgrading, data downloading, pass through the Ethernet interface of data board
Circuit or usb circuit realize vehicle-mounted data downloading and program upgrading；
Preferably, the data board safeguards that mouth can carry out associated maintenance operation, system work to system by Ethernet
Period, logging modle can read storage information upload to PC machine in real time analysis shows that, realize it is intuitively clear to system operation information
Clear grasp；
Preferably, the carry out data download operation that the data board can be convenient by USB interface reads logging modle and protects
The system operation information deposited, dump to after PC machine carry out analysis shows that；System correlation module can be realized by USB interface simultaneously
Program upgrading, realize the convenience of system operation and maintenance.
The present invention transmits skill using multi-channel redundant technology, signal control technology, multiple spot automatic measurement technique, signals security
Art etc., realization is energy activated to ground transponder signal and to transponder message signals reliable decoding, safe transmission is received, and guarantees
Equipment is oriented to secure side when single component breaks down, while meeting equipment high reliability, availability, maintainable demand.
On-vehicle host processing module of the present invention takes two and Dual-path backup design using two, by taking to decoded output data two
Two comparative analyses improve output data accuracy, safety, are designed by Dual-path backup, improve equipment availability.
The present invention use modularization open structure design, each module use single or multiple independent board plug structures, easily with
Relevant device interface, while facilitating plant maintenance, maintenance.
The present invention designs multilayer and detects safeguard procedures, carries out detection judgement automatically when some unit failure of equipment, prevents
Because equipment failure itself causes output error message to be transferred to external onboard control device.
The present invention designs multiple and different maintenance interfaces, can easily be looked by dedicated maintenance tool and maintenance software
It askes, downloading fault message, is convenient for plant maintenance.
Power circuit design of the present invention has circuit capable of delaying disconnection circuit, and equipment system is caused when preventing external power supply from powering off suddenly
The problems such as system file corruption, data write operation abnormal interrupt cause error in data or cause equipment damage.
It should be noted that in the present specification, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments are it will be apparent that as defined herein one for those skilled in the art
As principle can realize in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention will
It will not be intended to be limited to the embodiments shown herein, and be to fit to consistent with the principles and novel features disclosed herein
Widest range.
Claims (5)
1. a kind of multichannel transponder message transmitting device, including on-vehicle host, car antenna, which is characterized in that described vehicle-mounted
Host includes binary channels power amplifier module, multichannel receiving module, band-wise processing module, data board, power panel and bus board；Institute
It states on-vehicle host and is connect with car antenna by coaxial cable；Binary channels power amplifier module, the multichannel of the on-vehicle host receive
Module, band-wise processing module, data board and power panel are electrically connected by bus board；
The on-vehicle host is sent to ground transponder through car antenna for generating 27.095Mhz energy signal, while by vehicle
The ground transponder for carrying antenna transmission sends 4.2Mhz transponder message signals and is transmitted to external onboard control device after processing；
The car antenna receives ground transponder and sends 4.2Mhz radio frequency for receiving 27.095Mhz energy signal and emitting
Signal is simultaneously converted to electric signal transmission to on-vehicle host；
The binary channels power amplifier module answers reception for generating 27.095Mhz energy signal and exporting to car antenna
It answers device message signals and is transmitted to multichannel receiving module after binary channels filters；
The multichannel receiving module is for after carrying out two-way demodulation respectively for each channel transmission signal of binary channels power amplifier module
It exports four road demodulating informations and is transmitted to band-wise processing module；
The band-wise processing module is used to multichannel receiving module transmitting four road demodulating informations through eight channel-decodeds, every two-way
External onboard control device is transmitted to after output judgement；
The data board, for recording each module self-test information, communications status information, message information, device status information, simultaneously
The order control power board for receiving maintenance software is switched on or off RF energy；
Working power needed for the power panel is used to vehicle-mounted input power being converted to each module of on-vehicle host, while to power supply
Input voltage, output voltage, power panel environment temperature be acquired and be transmitted to data board；The power panel takes two-way superfluous
Remaining backup mode design, every road power supply can stand alone as complete machine power supply；
The bus board is for data communication, the switching of power supply power supply channel interface between each module of on-vehicle host.
2. a kind of multichannel transponder message transmitting device according to claim 1, it is characterized in that: the binary channels power amplifier
Module is made of interface circuit, Detection & Controling circuit, power circuit, power amplification circuit and binary channels filter circuit；
The interface circuit is respectively that car antenna interface, multichannel receiving module interface, bus card and board state refer to
Show interface；The car antenna interface, is electrically connected by cable and car antenna；The multichannel receiving module interface,
For the fsk signal after accepting filter to be transmitted to multichannel receiving module；The bus card, for logical with other boards
Letter and power input；The board state indicates interface, is used to indicate the working condition of power board；
The binary channels power amplifier module Detection & Controling circuit, including current detection circuit, power tube temperature sensing circuit, output
Power-sensing circuit for the operating status of real-time monitoring power amplifier link, while will test and be sent to data board in information, detection letter
Power amplifier output is closed when breath is abnormal；
The power amplification circuit, including signal generating circuit, level-one amplifying circuit, second amplifying circuit, three-stage amplifier,
Transmission channel filter circuit transmits after multistage amplification for generating 27.095MHz signal, and to generation 27.095MHz signal
To transmission channel bandpass filter, transmission channel bandwidth-limited circuit filters out the harmonic signal of frequency of oscillation and prevention receives
Centre frequency is that the signal of 4.2MHz enters transmission channel, is then transmitted to car antenna through antenna cables；
The binary channels filter circuit, for receiving car antenna transmission 4.2Mhz signal, protection electrostatic impact, interference signal filter
Fsk signal is simultaneously transmitted to multichannel receiving module after being filtered to the 27.095MHz signal of setting bandwidth by wave.
3. a kind of multichannel transponder message transmitting device according to claim 1, it is characterized in that: the multichannel receives
Module shares two-way input using Redundancy Design, and every road input is divided into after two-way carries out signal demodulation shaping respectively, then
Demodulation tetra- road signal of Hou is transmitted to band-wise processing module by bus board；Every road input signal is filtered, is demodulated simultaneously
After make decisions, for carry out transponder detection, physical cross talk and threshold value judgement；
The multichannel receiving module, including filter circuit, demodulator circuit, shaping circuit, interface conversion circuit and signal decision
Circuit；
The filter circuit, including electrostatic discharge protective circuit, bandwidth-limited circuit；The electrostatic discharge protective circuit uses low-capacitance bidirectional
Electrostatic protection diode is protected；The filter circuit uses active bandpass filiter circuit；
The shaping circuit puts shaping circuit using four road transports, respectively to the amplification of original demodulated signal, clutter filtering, signal two
Secondary amplification and voltage compare output, final output standardized digital signal；
The signal decision circuit, carrying out judgement according to demodulator circuit output signal level size or FSK message signals quality is
It is no to there is transponder to be detected；The signal decision circuit will input two according to setting threshold value by double threshold comparator
Road signal is compared respectively, is given up if FSK message signals all the way are unsatisfactory for setting value, while using other FSK all the way instead
Message input signal；
It is connected between the multichannel receiving module and binary channels power amplifier module by coaxial cable.
4. a kind of multichannel transponder message transmitting device according to claim 1, it is characterized in that: the band-wise processing
Module, use two take two framework, by four pieces of independent process board groups at two pieces of processing boards conducts are a pair of, one in each pair of processing board
Road failure is switched to another pair of processing board by manual or automatic；
The processing board has two-way input channel, including decoding circuit, CPU processing circuit, external interface circuit, backplane interface
Circuit and power circuit；
The processing board, every road input signal are transmitted to decoding circuit through backplane interface circuitry and are decoded, decoded signal
It is transmitted to CPU processing circuit to be handled, while CPU processing circuit receives the transponder detection inputted from multichannel receiving module
Signal, CPU processing circuit are transmitted by defined communications protocol by external interface circuit after being handled the signal received
To external onboard control device；
The decoding circuit, it is decoded using the decoding to two-way incoming message level signal respectively of two panels high speed processing chip
Signal is transmitted to CPU processing circuit afterwards；
The CPU processing circuit is handled while being exported using dual processors, and single processing module uses in such a way that two take two
Dual-path backup design, two CPU are exported simultaneously；
The external interface circuit, including isolation circuit and interface circuit；The isolation circuit is controlled for communication interface inside and outside
The isolation of line processed；The interface circuit is converted for communication interface format；
The backplane interface circuitry is used to the signal that multichannel receiving module transmits changing into level signal, and level signal is defeated
Decoding circuit is arrived out；Meanwhile band-wise processing module passes through backplane interface circuitry, bus board and binary channels power amplifier module, record
Plate is communicatively coupled；Further, the backplane interface circuitry includes data transfer, transponder detection input, response
Device CAN bus conversion circuit, RS485 bus switching circuit, power input, address input；
The band-wise processing module is handled when receiving the order of external onboard control device control power amplifier switch by CPU
Control command information is transmitted to multi-channel power amplifier module by bus board by circuit, defeated by multi-channel power amplifier module control power amplifier
Out.
5. a kind of multichannel transponder message transmitting device according to claim 1, it is characterized in that: the data board, packet
Include backplane interface circuitry, storage circuit, CPU processing circuit, external interface circuit, power circuit；The data board, passes through bottom plate
Interface circuit carries out communication link with binary channels power amplifier module, multichannel receiving module, band-wise processing module respectively through bus board
It connects；
The backplane interface circuitry, for the input of data board power interface and the other module communication interfaces of on-vehicle host and interface
Conversion；The backplane interface circuitry, including CAN bus conversion circuit, RS-485 bus switching circuit, power input；
The storage circuit records the status information and data information of each module of on-vehicle host；
The CPU processing circuit, for realizing the read-write of data is communicated, records information processing and recorded with each module of on-vehicle host
Operation；
The external interface circuit, including ethernet interface circuit, usb circuit；The ethernet interface circuit, is provided with
Transmission signal is isolated in network transformer, protective device, electrostatic protection is handled, for carrying out information friendship with external host computer
Mutually；The USB circuit is used for data download operation, reads the system operation information that data board saves, while can connect by this
Cause for gossip shows the program upgrading of system correlation module；
The power circuit, design have circuit capable of delaying disconnection that can provide the standby electricity of short time after device powers down for veneer
Source guarantees logging modle working condition and records the integrality of information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821346921.3U CN208508933U (en) | 2018-08-21 | 2018-08-21 | A kind of multichannel transponder message transmitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821346921.3U CN208508933U (en) | 2018-08-21 | 2018-08-21 | A kind of multichannel transponder message transmitting device |
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| Publication Number | Publication Date |
|---|---|
| CN208508933U true CN208508933U (en) | 2019-02-15 |
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ID=65300700
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|---|---|---|---|
| CN201821346921.3U Withdrawn - After Issue CN208508933U (en) | 2018-08-21 | 2018-08-21 | A kind of multichannel transponder message transmitting device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110294000A (en) * | 2019-04-30 | 2019-10-01 | 北京交大思诺科技股份有限公司 | A kind of LKJ system of the novel mode that changes the outfit |
| CN110880944A (en) * | 2018-08-21 | 2020-03-13 | 河南蓝信科技有限责任公司 | Multi-channel transponder message transmission device and method |
| CN111016973A (en) * | 2019-12-28 | 2020-04-17 | 卡斯柯信号有限公司 | Interconnection subway beacon positioning processing system |
| CN113232641A (en) * | 2021-06-04 | 2021-08-10 | 北京车和家信息技术有限公司 | Vehicle braking method, system, storage medium, electronic device and vehicle |
-
2018
- 2018-08-21 CN CN201821346921.3U patent/CN208508933U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110880944A (en) * | 2018-08-21 | 2020-03-13 | 河南蓝信科技有限责任公司 | Multi-channel transponder message transmission device and method |
| CN110880944B (en) * | 2018-08-21 | 2024-05-10 | 河南蓝信科技有限责任公司 | Multi-channel transponder message transmission device and method |
| CN110294000A (en) * | 2019-04-30 | 2019-10-01 | 北京交大思诺科技股份有限公司 | A kind of LKJ system of the novel mode that changes the outfit |
| CN110294000B (en) * | 2019-04-30 | 2021-03-16 | 北京交大思诺科技股份有限公司 | Novel LKJ system of mode of reloading |
| CN111016973A (en) * | 2019-12-28 | 2020-04-17 | 卡斯柯信号有限公司 | Interconnection subway beacon positioning processing system |
| CN113232641A (en) * | 2021-06-04 | 2021-08-10 | 北京车和家信息技术有限公司 | Vehicle braking method, system, storage medium, electronic device and vehicle |
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