CN209208784U - A kind of railway signals equipment mobile monitoring device based on DSP - Google Patents
A kind of railway signals equipment mobile monitoring device based on DSP Download PDFInfo
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- CN209208784U CN209208784U CN201821780757.7U CN201821780757U CN209208784U CN 209208784 U CN209208784 U CN 209208784U CN 201821780757 U CN201821780757 U CN 201821780757U CN 209208784 U CN209208784 U CN 209208784U
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Abstract
The utility model provides a kind of railway signals equipment mobile monitoring device based on DSP, it includes Railway Signal Acquisition plate, mainboard and display screen；The Railway Signal Acquisition plate is used to acquire railway signal parameters for transmission in real time to the mainboard with the mainboard；The mainboard is connected with the display screen, exports and shows the railway signal parameter；The Railway Signal Acquisition plate includes dsp processor, and if the main line analog quantity sampling channel, several way switch amount acquisition channels, power isolation circuit and the power-switching circuit that are connected with the dsp processor.The railway signals equipment mobile monitoring device based on DSP has the advantages that design science, practical, easy to remove, operation is convenient, monitoring efficiency is high low with production cost.
Description
Technical field
The utility model relates to monitor of the railway signal equipment technical fields, specifically, relate to a kind of iron based on DSP
Road signalling arrangement mobile monitoring device.
Background technique
The railway signal centralized monitoring system currently promoted the use of can be realized measurement to railway signals equipment and
The diagnosis of failure is made that very big contribution for the safety of railway transportation.
But the larger workload of the installation and debugging of centralized signal supervision system, required investment is also bigger, ends mesh
It is preceding still to have on the station of a large amount of non-main lines there are no equipment railway signal centralized monitoring system, and it is some recessive, intermittent
Failure, with general conventional instrument instrument again be difficult find and record；Meanwhile even if being equipped with centralized signal supervision system
Station, monitoring range is also limited, and will often find that the point to be measured not within the scope of monitoring, it is some special to cause
Equipment fault be very difficult to exclude.
In order to solve the above problems, people are seeking always a kind of ideal technical solution.
Summary of the invention
The purpose of this utility model is in view of the deficiencies of the prior art, to provide a kind of design science, practical, just
In movement, operate convenient, the high railway signals equipment mobile monitoring device based on DSP low with production cost of monitoring efficiency.
To achieve the goals above, the technical scheme adopted by the utility model is a kind of railway signal based on DSP is set
Standby mobile monitoring device, including Railway Signal Acquisition plate, mainboard and display screen；
The Railway Signal Acquisition plate is used to acquire railway signal parameters for transmission in real time to the master with the mainboard
Plate；
The mainboard is connected with the display screen, exports and shows the railway signal parameter；
The Railway Signal Acquisition plate includes dsp processor, and if the main line analog quantity that is connected with the dsp processor
Sampling channel, several way switch amount acquisition channels, power isolation circuit and power-switching circuit.
Based on above-mentioned, every road analog quantity sampling channel include the analog quantity sample circuit being sequentially connected in series, range from
Dynamic switching circuit and analog quantity conditioning circuit.
Based on above-mentioned, the analog quantity sample circuit includes fuse FUSE1, fuse FUSE2, thermistor PTC1, temperature-sensitive
Resistance PTC2, current-limiting resistance R1 and current-limiting resistance R2, the fuse FUSE1, the thermistor PTC1 and the current-limiting resistance
R1 is sequentially connected in series, and the fuse FUSE2, the thermistor PTC2 and the current-limiting resistance R2 are sequentially connected in series；
The range automatic switching circuit include sampling resistor R4, sampling resistor R5, sampling resistor R6, sampling resistor R7 and
Electronic switch；The sampling resistor R4, the sampling resistor R5, the sampling resistor R6 and the sampling resistor R7 are connected in parallel
Afterwards, one end connects the current-limiting resistance R1, and the other end connects the electronic switch；The electronic switch is also connected with the current limliting electricity
Hinder R2；
The analog quantity conditioning circuit includes resistance R3, resistance R8, resistance R9, operational amplifier N1, operational amplifier N2
And linear optical coupling；The one end the resistance R3 connects the current-limiting resistance R1, and the other end connects the input of the operational amplifier N1
The output pin of pin, the operational amplifier N1 is drawn by the isolation signals input that the resistance R8 connects the linear optical coupling
Foot；The feedback pin of the linear optical coupling is separately connected the other end and the resistance R2 of the resistance R3, the linear optical coupling
Output pin connect the input pin of the operational amplifier N2；The resistance R9 is connected in series in the operational amplifier N2
Input pin and output pin between, the output pin of the operational amplifier N2 connects the dsp processor.
Based on above-mentioned, every way switch amount acquisition channel includes diode, zener diode, current-limiting resistance R10 and high speed
Optocoupler；The cathode of the positive connection switch amount signal input part of the diode, the diode connects the zener diode
Cathode, the anode of the zener diode connects one end of the current-limiting resistance R10；The anode of the high speed photo coupling connects institute
State the other end of current-limiting resistance R10, the cathode connection switch amount signal ground of the high speed photo coupling, the output end of the high speed photo coupling
Connect the dsp processor.
Based on above-mentioned, the Railway Signal Acquisition plate includes 8 tunnel analog quantity sampling channels and 16 way switch amount acquisition channels.
Based on above-mentioned, which further includes cabinet, and is arranged on the cabinet
Component mounting plate and detection panel；
The mainboard is also connected with interface board, the interface board setting CAN interface, serial ports, network interface and USB interface；It is described
CAN interface, the serial ports, the network interface and the USB interface Interface Terminal be arranged in the detection panel.
Based on above-mentioned, the mainboard model PCM-3587.
Based on above-mentioned, the dsp processor signal is TMS320F28335.
Based on above-mentioned, the display screen is touch screen.
Based on above-mentioned, the mainboard is also connected with acousto-optic indicator board.
The utility model has substantive features and progress compared with the prior art, specifically:
1) the utility model provides a kind of railway signals equipment mobile monitoring device based on DSP, including railway signal
Collection plate, mainboard and display screen；The Railway Signal Acquisition plate acquires railway signal parameter simultaneously for real-time with the mainboard
It is transmitted to the mainboard；The mainboard is connected with the display screen, exports and shows the railway signal parameter；Compensate for iron
Deficiency on road centralized signal supervision system and conventional instrument instrument function, provided for equipment fault analysis more refer to according to
According to；
2) the railway signals equipment mobile monitoring device further includes cabinet, and the component peace being arranged on the cabinet
Loading board and detection panel；The CAN interface, the serial ports, the network interface and the USB interface Interface Terminal be arranged at institute
It states in detection panel；Therefore the utility model is easy to remove, and it is convenient to operate, and can have been equipped with centralized signal supervision system
Station is expanded in conjunction with centralized signal supervision system using railway signals equipment mobile monitoring device as centralized signal supervision system
The acquisition project of the harvester of exhibition, the acquisition project being temporarily increased and the configuration of centralized signal supervision system standard is incorporated in one
It rises, quickly excludes signalling arrangement failure for signal maintenance department and help is provided；
In conclusion the utility model has, design science, practical, easy to remove, operation is convenient, monitoring efficiency is high
The advantage low with production cost.
Detailed description of the invention
Fig. 1 is the circuit principle structure schematic diagram of the utility model.
Fig. 2 is the circuit diagram of the analog quantity sampling channel of the utility model.
Fig. 3 is the circuit diagram in the switch acquisition channel of the utility model.
Fig. 4 is the structural schematic diagram of the utility model.
Wherein, 1. cabinet；2. component mounting plate；3. detection panel；4. battery fixing piece.
Specific embodiment
Below by specific embodiment, the technical solution of the utility model is described in further detail.
Embodiment 1
As shown in attached drawing 1- attached drawing 4, a kind of railway signals equipment mobile monitoring device based on DSP, it includes railway letter
Number collection plate, mainboard and display screen；
The Railway Signal Acquisition plate is used to acquire railway signal parameters for transmission in real time to the master with the mainboard
Plate；
The mainboard is connected with the display screen, exports and shows the railway signal parameter；
The Railway Signal Acquisition plate includes dsp processor, and if the main line analog quantity that is connected with the dsp processor
Sampling channel, several way switch amount acquisition channels, power isolation circuit and power-switching circuit.
In use, measured signal is logical by the analog quantity sampling channel or switch acquisition of the Railway Signal Acquisition plate
After road, into the A/D module of the dsp processor, railway signal parameter is periodically sent to the mainboard by dsp processor.Institute
It states mainboard to store the railway signal parameter monitored, and is shown by the display screen user oriented.
Specifically, the mainboard model PCM-3587；The dsp processor signal is TMS320F28335；It is described aobvious
Display screen is touch screen.TMS320F28335 type digital signal processor is used in the railway signals equipment mobile monitoring device,
The characteristic parameter of coherent signal can be calculated according to channel type, the high speed processing ability with 150MHz has 32 floating-points
Processing unit, 6 DMA channels support ADC, McBSP and EMIF, have the PWM on up to 18 tunnels to export, wherein there is 6 road TI distinctive
The PWM of higher precision exports (HRPWM), 16 12, tunnel ADC；The mainboard provides man-machine interactive interface, touching with by touch screen
Screen is touched as man-machine interface (HMI), realizes Measurement channel configuration, real time data monitoring.
Embodiment 2
The present embodiment the difference from embodiment 1 is that: every road analog quantity sampling channel includes the mould being sequentially connected in series
Analog quantity sample circuit, range automatic switching circuit and analog quantity conditioning circuit.
This gives a kind of specific embodiments of analog quantity sampling channel:
The analog quantity sample circuit include fuse FUSE1, fuse FUSE2, thermistor PTC1, thermistor PTC2,
Current-limiting resistance R1 and current-limiting resistance R2, the fuse FUSE1, the thermistor PTC1 and the current-limiting resistance R1 are sequentially connected in series
Connection, the fuse FUSE2, the thermistor PTC2 and the current-limiting resistance R2 are sequentially connected in series；The analog quantity is adopted
Sample circuit is provided with fuse, thermistor and the triple isolating means of current-limiting resistance, and fuse is arranged between input terminal, can be super in electric current
It is instanteously blown when crossing 200mA, prevents short circuit between input terminal；PTC thermistor component is sealed in, is more than in input terminal loop current
It plays a role when 64mA, resistance value is become greater to a few M Ω until itself burning open circuit in tens to several hundred milliseconds；Current-limiting resistance is adopted
With the oxidized metal film resistance of 1M Ω, 2W, the input of forceful electric power high voltage is reduced to weak voltage signal (several hundred millivolts of magnitudes) into rear class
Processing circuit may insure that acquisition probe can work normally in the environment of acquiring signal no more than AC1000V in this way；
The range automatic switching circuit include sampling resistor R4, sampling resistor R5, sampling resistor R6, sampling resistor R7 and
Electronic switch；The sampling resistor R4, the sampling resistor R5, the sampling resistor R6 and the sampling resistor R7 are connected in parallel
Afterwards, one end connects the current-limiting resistance R1, and the other end connects the electronic switch；The electronic switch is also connected with the current limliting electricity
Hinder R2；The sampling resistor value in access analog quantity sampling channel is controlled by the electronic switch, to make analog quantity conditioning electricity
Sample voltage value is amplified to the maximum value inputted close to A/D by road as far as possible, to obtain the maximum resolution of A/D conversion；
The analog quantity conditioning circuit includes resistance R3, resistance R8, resistance R9, operational amplifier N1, operational amplifier N2
And linear optical coupling；The one end the resistance R3 connects the current-limiting resistance R1, and the other end connects the input of the operational amplifier N1
The output pin of pin, the operational amplifier N1 is drawn by the isolation signals input that the resistance R8 connects the linear optical coupling
Foot；The feedback pin of the linear optical coupling is separately connected the other end and the resistance R2 of the resistance R3, the linear optical coupling
Output pin connect the input pin of the operational amplifier N2；The resistance R9 is connected in series in the operational amplifier N2
Input pin and output pin between, the output pin of the operational amplifier N2 connects the dsp processor；It is described linear
Optocoupler can use HCNR201 photoelectrical coupler；It ensure that in the case where analog quantity sampling channel breaks down, it will not be to this
Railway signals equipment mobile monitoring device has an impact.
This gives a kind of specific embodiment in switch acquisition channel, every way switch amount acquisition channel is wrapped
Include diode, zener diode, current-limiting resistance R10 and high speed photo coupling；The positive connection switch amount signal of the diode inputs
End, the cathode of the diode connect the cathode of the zener diode, and the anode of the zener diode connects the current limliting
One end of resistance R10；The anode of the high speed photo coupling connects the other end of the current-limiting resistance R10, the yin of the high speed photo coupling
The output end of pole connection switch amount signal ground, the high speed photo coupling connects the dsp processor；The high speed photo coupling can use
6N137.The switch acquisition channel realizes acquisition to specific voltage switching value and switching value level conversion and switch
Being isolated between amount signal and DSP control system.
Specifically, the Railway Signal Acquisition plate includes 8 tunnel analog quantity sampling channels and 16 way switch amount acquisition channels, tool
The standby function of measuring 8 road analog signals and 16 way switch amount signals simultaneously, the channel configuration provided by PC104 mainboard connect
Mouthful, the test-types of Measurement channel are configured.
Embodiment 3
The present embodiment the difference from embodiment 1 is that: the railway signals equipment mobile monitoring device further includes cabinet 1, with
And the component mounting plate 2 on the cabinet 1 and detection panel 3 are set；
The mainboard is also connected with interface board, the interface board setting CAN interface, serial ports, network interface and USB interface；It is described
CAN interface, the serial ports, the network interface and the USB interface Interface Terminal be arranged in the detection panel 3.The iron
Road signalling arrangement mobile monitoring device externally provides CAN interface, serial ports, Ethernet interface and USB interface by the mainboard,
To realize the export of storing data.
Specifically, the mainboard is also connected with acousto-optic indicator board, sound optical deictic function is externally provided, DSP can be handled
The operating status of device, the transmitting and receiving state of CAN bus, lithium battery mould group power supply state externally shown.
Specifically, the power supply of the railway signals equipment mobile monitoring device is provided by lithium battery mould group, lithium battery mould group is logical
Battery fixing piece 3 is crossed to be mounted on the component mounting plate 2；The power isolation circuit is isolated using B0505S DC power supply
Module, the power-switching circuit use LM1117 low difference voltage regulator, pass through the electricity on the Railway Signal Acquisition plate
Power supply after conversion is supplied respectively to dsp processor, analog quantity sampling channel, switch by source isolation circuit and power-switching circuit
It measures acquisition channel, the mainboard and touch screen and device external power supply interface uses.Lithium battery mould group under full state for
Device, which runs without interruption, to be greater than 24 hours, and the power demand of device is met.
Finally it should be noted that: above embodiments are only to illustrate the technical solution of the utility model rather than limit it
System；Although the utility model has been described in detail with reference to the preferred embodiment, those of ordinary skill in the art should
Understand: specific implementation of the utility model can still be modified or is equally replaced to some technical characteristics
It changes；Without departing from the spirit of technical solutions of the utility model, should all cover in the claimed technical solution of the utility model
In range.
Claims (10)
1. a kind of railway signals equipment mobile monitoring device based on DSP, it is characterised in that: including Railway Signal Acquisition plate, master
Plate and display screen；
The Railway Signal Acquisition plate is used to acquire railway signal parameters for transmission in real time to the mainboard with the mainboard；
The mainboard is connected with the display screen, exports and shows the railway signal parameter；
The Railway Signal Acquisition plate includes dsp processor, and if be connected with the dsp processor main line analog quantity sampling
Channel, several way switch amount acquisition channels, power isolation circuit and power-switching circuit.
2. the railway signals equipment mobile monitoring device according to claim 1 based on DSP, it is characterised in that: every road mould
Analog quantity sampling channel includes analog quantity sample circuit, range automatic switching circuit and analog quantity the conditioning electricity being sequentially connected in series
Road.
3. the railway signals equipment mobile monitoring device according to claim 2 based on DSP, it is characterised in that: the mould
Analog quantity sample circuit includes fuse FUSE1, fuse FUSE2, thermistor PTC1, thermistor PTC2, current-limiting resistance R1 and limit
Leakage resistance R2, the fuse FUSE1, the thermistor PTC1 and the current-limiting resistance R1 are sequentially connected in series, the fuse
FUSE2, the thermistor PTC2 and the current-limiting resistance R2 are sequentially connected in series；
The range automatic switching circuit includes sampling resistor R4, sampling resistor R5, sampling resistor R6, sampling resistor R7 and electronics
Switch；After the sampling resistor R4, the sampling resistor R5, the sampling resistor R6 and the sampling resistor R7 are connected in parallel,
One end connects the current-limiting resistance R1, and the other end connects the electronic switch；The electronic switch is also connected with the current-limiting resistance
R2；
The analog quantity conditioning circuit includes resistance R3, resistance R8, resistance R9, operational amplifier N1, operational amplifier N2 and line
Property optocoupler；The one end the resistance R3 connects the current-limiting resistance R1, and the other end connects the input pin of the operational amplifier N1,
The output pin of the operational amplifier N1 connects the isolation signals input pin of the linear optical coupling by the resistance R8；Institute
The feedback pin for stating linear optical coupling is separately connected the other end and the resistance R2 of the resistance R3, the output of the linear optical coupling
Pin connects the input pin of the operational amplifier N2；The resistance R9 is connected in series in the input of the operational amplifier N2
Between pin and output pin, the output pin of the operational amplifier N2 connects the dsp processor.
4. the railway signals equipment mobile monitoring device according to claim 1 based on DSP, it is characterised in that: open on every road
It includes diode, zener diode, current-limiting resistance R10 and high speed photo coupling that acquisition channel is measured in pass；The anode of the diode is even
On-off model input terminal is connect, the cathode of the diode connects the cathode of the zener diode, the zener diode
Anode connects one end of the current-limiting resistance R10；The anode of the high speed photo coupling connects the other end of the current-limiting resistance R10,
The output end of the cathode connection switch amount signal ground of the high speed photo coupling, the high speed photo coupling connects the dsp processor.
5. the railway signals equipment mobile monitoring device according to claim 1 based on DSP, it is characterised in that: the iron
Road signal acquiring board includes 8 tunnel analog quantity sampling channels and 16 way switch amount acquisition channels.
6. the railway signals equipment mobile monitoring device according to claim 1 based on DSP, it is characterised in that: the railway
Signalling arrangement mobile monitoring device further includes cabinet, and the component mounting plate and detection panel that are arranged on the cabinet；
The mainboard is also connected with interface board, the interface board setting CAN interface, serial ports, network interface and USB interface；The CAN connects
The Interface Terminal of mouth, the serial ports, the network interface and the USB interface is arranged in the detection panel.
7. the railway signals equipment mobile monitoring device according to claim 1 based on DSP, it is characterised in that: the master
Plate model PCM-3587.
8. the railway signals equipment mobile monitoring device according to claim 1-7 based on DSP, feature exist
In: the dsp processor signal is TMS320F28335.
9. the railway signals equipment mobile monitoring device according to claim 8 based on DSP, it is characterised in that: described aobvious
Display screen is touch screen.
10. the railway signals equipment mobile monitoring device according to claim 8 based on DSP, it is characterised in that: the master
Plate is also connected with acousto-optic indicator board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821780757.7U CN209208784U (en) | 2018-10-31 | 2018-10-31 | A kind of railway signals equipment mobile monitoring device based on DSP |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821780757.7U CN209208784U (en) | 2018-10-31 | 2018-10-31 | A kind of railway signals equipment mobile monitoring device based on DSP |
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| Publication Number | Publication Date |
|---|---|
| CN209208784U true CN209208784U (en) | 2019-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821780757.7U Active CN209208784U (en) | 2018-10-31 | 2018-10-31 | A kind of railway signals equipment mobile monitoring device based on DSP |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112234590A (en) * | 2020-10-10 | 2021-01-15 | 绵阳市维博电子有限责任公司 | Switch point machine action voltage detection device and PCB (printed circuit board) distribution mode thereof |
| CN112506114A (en) * | 2020-12-29 | 2021-03-16 | 河南辉煌科技股份有限公司 | Railway signal external power network monitoring device based on DSP chip |
| CN112799322A (en) * | 2020-12-28 | 2021-05-14 | 卡斯柯信号有限公司 | Multi-way switching value acquisition and processing device |
-
2018
- 2018-10-31 CN CN201821780757.7U patent/CN209208784U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112234590A (en) * | 2020-10-10 | 2021-01-15 | 绵阳市维博电子有限责任公司 | Switch point machine action voltage detection device and PCB (printed circuit board) distribution mode thereof |
| CN112799322A (en) * | 2020-12-28 | 2021-05-14 | 卡斯柯信号有限公司 | Multi-way switching value acquisition and processing device |
| CN112506114A (en) * | 2020-12-29 | 2021-03-16 | 河南辉煌科技股份有限公司 | Railway signal external power network monitoring device based on DSP chip |
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