CN103223948B - A kind of locomotive voltage acquisition register system - Google Patents
A kind of locomotive voltage acquisition register system Download PDFInfo
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Abstract
The invention discloses a kind of locomotive voltage acquisition register system, comprising: master control logging modle, power module, conversion isolation module and Operation display module.Power module be input as electrical locomotive power, power module for master control logging modle and conversion isolation module power supply is provided, conversion isolation module is to the tested voltage input signal sampling on 1 to 4 tunnel, and export master control logging modle to after isolation conversion is carried out to tested voltage input signal, when the tested voltage input signal in arbitrary road exceedes the normal range of setting, master control logging modle shows failure alarm signal by Operation display module, and simultaneously buzzer phone is sounded alerting signal.The present invention can show for the vdc of 0V ~ 180V various on locomotive in good time, record, Ground analysis provides solution, be convenient to crew member's Timeliness coverage fault, grasp the service condition of equipment on locomotive, the problem of Timeliness coverage and solution power supply or voltage signal aspect, significantly improves the safety of rail vehicles operation.
Description
Technical field
The present invention relates to a kind of locomotive electric cad system equipment, especially relate to a kind of voltage acquisition record (VCR, VoltageCollectRecord) system being applied to rail vehicles.
Background technology
There is multiple vdc in current locomotive and motor train unit, as battery feed voltage, digital switch quantity voltage etc. between cab signaling equipment and Train Control equipment, if these voltages exceed the voltage range that railway standard or specification specify, will directly affect the normal operation of locomotive.There is the voltage recording unit of Multiple Type in the market, but and be not suitable for being applied to locomotive voltage acquisition and record.Its reason is, its power supply is AC220V, and the power supply of locomotive storage batteries is DC110V, DC75V etc.Meanwhile, existing voltage recording unit also also exists following technological deficiency:
(1) voltage range of existing voltage recording unit normally can not work under the electrical locomotive power voltage range of 0.3Un ~ 1.7Un, can not be applicable to the voltage range of 0 ~ 180V, can not more than continuous 100 hour record 4 tunnels magnitude of voltage;
(2) working temperature range of existing voltage recording unit is only at 0 ~ 50 DEG C, do not meet " GB/T25119-2010 rail transit rolling stock electronics package " to the requirement of locomotive vehicle-mounted equipment working temperature range-25 DEG C ~ 70 DEG C, under the operating temperature of-25 DEG C ~ 70 DEG C, precision can not reach 1V;
(3) existing voltage recording unit can not set the standard value of tested voltage, when tested electric voltage exception, can not alerting signal be sent, audible alarm can not be carried out when voltage exceeds specified value, can not in the passage name of test equipment display abnormal voltage after electric voltage exception;
(4) display of existing voltage recording unit no-voltage log file ground statistics, analysis software or software, query function are complete, voltage log file can not be dumped to ground and carry out statistics and analysis.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of locomotive voltage acquisition register system, can show for the voltage of 0V ~ 180V various on locomotive in good time, to record and analysis provides solution, be convenient to crew member's Timeliness coverage fault, grasp the service condition of equipment on locomotive, and the problem of Timeliness coverage and solution power supply or voltage signal aspect, significantly improve the safety and reliability of rail traffic vehicles electric apparatus mounted on vehicle, thus improve the safety of rail vehicles operation.
In order to realize foregoing invention object, the present invention specifically provides a kind of technic relization scheme of locomotive voltage acquisition register system, and a kind of locomotive voltage acquisition register system, comprising: master control logging modle, power module, conversion isolation module and Operation display module.Power module be input as electrical locomotive power, described power module for described master control logging modle and conversion isolation module power supply is provided, the tested voltage input signal of described conversion isolation module to 1 to 4 tunnel is sampled, and exports described master control logging modle to after carrying out isolation conversion to tested voltage input signal.When the tested voltage input signal in arbitrary road exceedes the normal range of setting, described master control logging modle is by described Operation display module display failure alarm signal.
Preferably, described master control logging modle comprises USB interface, and voltage log file is stored to moveable magnetic disc by USB interface by described master control logging modle, then carries out statistics and analysis by described moveable magnetic disc dump to PC.
Preferably, the input supply voltage scope of described power module is 0.3U
n~ 1.7U
n, U
nfor electrical locomotive power nominal voltage.
Preferably, the tested voltage input signal on described 1 to 4 tunnel is the voltage signal of 0V ~ 180V scope, and described conversion isolation module, to after tested voltage input signal transmitting and converting and isolation, exports the voltage analog signal of 0V ~ 3.3V to described master control logging modle.
Preferably, described power module is by power interface input locomotive battery feed Un, change through described power module, output direct current+5V, direct current+12V are that described master control logging modle is powered, exporting direct current ± 15V is that described conversion isolation module is powered, and exports direct current+12V for described conversion isolation module and provides voltage acquisition passage self-inspection voltage.
Preferably, start buzzer phone after a certain road voltage in the tested voltage input signal on described 1 to 4 tunnel exceeds the scope of 0.8U ~ 1.15U and report to the police, wherein, U is normal voltage value.The background colour of the passage name on described Operation display module interface is changed into warning look to identify abnormal passage simultaneously, during warning, press " confirmation " button stop alarm.
Preferably, unlatching or the closedown of tested voltage input signal sampling channel is set when described locomotive voltage acquisition register system entrucking debugging, and the normal voltage value U of sampling channel is opened in setting, when not setting normal voltage value, start average voltage in rear setting-up time as normal voltage value using voltage acquisition.
Preferably, described power module exports the multi-channel relay normally open port of a road direct current+12V to described conversion isolation module, and tested voltage input signal is connected with the normally closed port of described relay.When described locomotive voltage acquisition register system self-inspection, described master control logging modle exports multi-channel relay described in self-checking command conducting, described conversion isolation module access self-inspection normal voltage direct current+12V, the collection voltage of described master control logging modle is state working properly in the error limit allowed.
Preferably, when the collection voltage of the tested voltage input signal on described 1 to 4 tunnel is all normal, described master control logging modle with the first setting-up time for interval record once gather voltage, to exceed gather voltage range acquisition channel with the second setting-up time being less than described first setting-up time for interval record once gathers voltage, when gathering voltage and exceeding setting amplitude every the 3rd setting-up time change, to record for interval with the setting-up time four being less than described first setting-up time and once gather voltage.
Preferably, when the collection voltage of the tested voltage input signal on described 1 to 4 tunnel is all normal, described master control logging modle is that interval record once gathers voltage with 1s, to exceeding, to gather the acquisition channel of voltage range with 20ms be that interval record once gathers voltage, when gathering voltage when 20ms change is more than 5%, be that interval record once gathers voltage with 20ms.
Preferably, described Operation display module adopts car-mounted display interface, by the normal voltage value of described car-mounted display interface setting time, the tested voltage in each road; When described locomotive voltage acquisition register system normally works, car-mounted display interface display comprises system time, the current voltage of the 4 tested voltages in road, maximum voltage of this operation, the information of minimum voltage; Described master control logging modle comprises clock chip, when described locomotive voltage acquisition register system Installation and Debugging, and the manual initialization system time at car-mounted display interface.
Preferably, described power module produces " power-off early warning " interrupt signal, and exports described master control logging modle to.When supply regular power, " power-off early warning " signal exports normal voltage signal; When described locomotive voltage acquisition register system input power source abnormality or when closing; " power-off early warning " is set to failure voltage signal in setting-up time; other output voltages of described power module continue to export certain hour; to ensure that described locomotive voltage acquisition register system completes gatherer process, and store primary voltage signal and other key messages.
By implementing the technical scheme of a kind of locomotive voltage acquisition register system that the invention described above provides, there is following technique effect:
(1) the present invention normally can work under electrical locomotive power voltage is the wide region of 0.3Un ~ 1.7Un, and in locomotive power supply power supply suddenly abnormal or recording voltage value again when closing, reliability is high;
(2) the present invention when tested power supply occurs abnormal, can carry out automatic alarm, and identifies the passage of et out of order further;
(3) the present invention can use moveable magnetic disc dump voltage log file, and can carry out statistics and analysis by voltage record analysis software;
(4) display interface of the present invention is directly perceived, simple to operate, provides the warning of locomotive electric voltage exception, voltage log file ground statistics, analyzes, provide localization method and the fault verification foundation of locomotive electric voltage exception fast and accurately.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the system architecture diagram of a kind of detailed description of the invention of locomotive voltage acquisition register system of the present invention.
In figure: 1-locomotive voltage acquisition register system, 2-master control logging modle, 3-power module, 4-changes isolation module, 5-Operation display module, 6-PC machine.
Detailed description of the invention
For the purpose of quoting and know, by the technology hereinafter used, write a Chinese character in simplified form or abridge and be described below:
PC: PersonalComputer, Personal Computer;
VCR:VoltageCollectRecord, system voltage acquisition and recording system;
DC:DirectCurrent, direct current (DC);
AC:AlternatingCurrent, alternating current;
USB:UniversalSerialBus, USB;
TFT-LCD:ThinFilmTransistor-LiquidCrystalDisplay, Thin Film Transistor-LCD;
RAM:RandomAccessMemory, random access memory;
LED:LightEmittingDiode, light-emitting diode;
FLASH:FlashMemory, flash memory;
FPGA:FieldProgrammableGateArray, i.e. field programmable gate array;
LVDS:LowVoltageDifferentialSignaling, Low Voltage Differential Signal.
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, give the specific embodiment of a kind of locomotive voltage acquisition of the present invention register system, below in conjunction with the drawings and specific embodiments, the invention will be further described.
The detailed description of the invention of a kind of locomotive voltage acquisition register system as shown in Figure 1, locomotive voltage acquisition register system 1 comprises: master control logging modle 2, power module 3, conversion isolation module 4 and Operation display module 5.Power module 3 be input as electrical locomotive power, power module 3 provides power supply for master control logging modle 2 and conversion isolation module 4.The tested voltage input signal of conversion isolation module 4 to 1 to 4 tunnel is sampled, and exports master control logging modle 2 to after carrying out isolation conversion to tested voltage input signal.When the tested voltage input signal in arbitrary road exceedes the normal range of setting, master control logging modle 2 shows failure alarm signal by Operation display module 5.
Locomotive voltage acquisition register system 1, on interface is arranged, specifically comprises: 3 core power interface X1,10 core signal input interface X2 and 10 core serial communication interface X4(not shown).Locomotive voltage acquisition register system 1 inputs locomotive battery feed Un by 3 core power interface X1,4 road voltage signals are gathered by 10 core signal input interface X2,10 core serial communication interface X4 draw from master control logging modle 2, for the RS485 interface that system is reserved, the information such as acquisition time, kilometer post can be used for as required.Master control logging modle 2 further comprises USB interface X3, voltage log file is stored to moveable magnetic disc by USB interface X3 by master control logging modle 2, carry out statistics and analysis by moveable magnetic disc dump to PC 6 again, master control logging software can also be changed by moveable magnetic disc simultaneously.Be encrypted to prevent abnormal program change when changing master control logging software, can selective dump latest document or all files during file dumping.Locomotive voltage acquisition register system 1 realizes dump voltage log file fast, easily by moveable magnetic disc, can selective dump latest document or all files during file dumping, each voltage acquisition passage is recorded as separately a file, then by voltage record analysis software process voltage log file.Voltage record analysis software is by form, graphics mode display magnitude of voltage, and statistics hurdle display overvoltage number of times, under-voltage number of times etc., provided/under-voltagely wait query composition display mode.
According to different locomotive storage batteries, power module 3 may have 3 kinds of different design plans, and the difference between its 3 kinds of different schemes is that the nominal input voltage of power module 3 is respectively DC24V, DC75V and DC110V.The input supply voltage scope of power module 3 is 0.3U further
n~ 1.7U
n, U
nfor electrical locomotive power nominal voltage.Different automobile types can select different power modules 3, and often kind of power module 3 all can reach the input voltage range requirement of 0.3Un ~ 1.7Un.Meanwhile, the voltage signal that the tested voltage input signal on 1 to 4 tunnel of isolation module 4 is 0V ~ 180V scope is changed in input.The signal sampling of input conversion isolation module 4 adopts the scheme of precision resistance dividing potential drop, high-linearity analogy optocoupler device HCNR201 isolation.Power module exports and has 4 tunnels, respectively: DC ± 15V powers to conversion isolation module 4, DC+12V is to the voltage acquisition recording channel self-inspection of conversion isolation module 4 and relay is powered, DC+5V power supply and DC+12V powers to master control logging modle 2, DC+24V powers to buzzer phone.Power module 3 inputs locomotive battery feed Un by power interface X1, change through power module 3, output direct current+5V, direct current+12V are that master control logging modle 2 is powered, export direct current ± 15V to power for conversion isolation module 4, export direct current+12V and provide voltage acquisition passage self-inspection voltage for changing isolation module 4.Select power module 3 according to concrete cab signal, power module 3 is divided into 3 kinds according to nominal input voltage DC24V, DC75V, DC110V, and often kind of power module 3 all can reach the input voltage range requirement of 0.3Un ~ 1.7Un.Meanwhile, power module 3 is designed with the protection of input overvoltage/undervoltage, input short protection, anti-reverse protection, protecting against shock protection, 5V output over-voltage protection, to guarantee the stable operation of power supply.
The voltage analog signal of 4 road 0V ~ 3.3V after conversion isolation module 4 transmitting and converting, isolation is to master control logging modle 2.Show the current voltage of this 4 road voltage, this maximum voltage, minimum voltage run at the liquid crystal display interface of Operation display module 5 respectively, and exceed the passage of specified value by red circle mark voltage range.Start buzzer phone after a certain road voltage in the tested voltage input signal on 1 to 4 tunnel exceeds the scope of 0.8U ~ 1.15U to report to the police, the background colour of the passage name on Operation display module 5 interface is changed into warning look to identify abnormal passage simultaneously, " confirmation " button stop alarm is pressed during warning, wherein, U is normal voltage value.
Unlatching or the closedown of tested voltage input signal sampling channel is set when the entrucking of locomotive voltage acquisition register system 1 is debugged, and the normal voltage value U of sampling channel is opened in setting, when not setting normal voltage value, start average voltage in rear setting-up time as normal voltage value using voltage acquisition.As typical embodiment a kind of in the present embodiment, when the collection voltage of the tested voltage input signal on 1 to 4 tunnel is all normal, master control logging modle 2 once gathers voltage every 1s record, once voltage is gathered every 20ms record to exceeding the acquisition channel gathering voltage range, when gathering voltage when 20ms change is more than 5%, once gather voltage every 20ms record.Locomotive voltage acquisition register system 1 of the present invention carries 512MByteFLASH and 64MByteRAM, possesses the data acquiring and recording ability of continuous 100 hours, can more than continuous record 100h when 4 road voltages all exceed specialized range.Wherein, voltage file storage 512MByte, primary voltage information is stored according to every 20ms when 4 road voltages are all abnormal, each information of voltage takies 2Byte, namely each second 4 × 2 × 50=400Byte, 1440000Byte per hour, i.e. 1.373MByte, calculate according to 40% other information, per hourly take storage space 1.923MByte, the storage control space of 512MB can store 266 hours information of voltage.
Power module 3 exports a road DC+12V and extremely changes the often ported of 24 passage relays of isolation module 4, and tested voltage input signal is connected with the normally closed port of relay.When locomotive voltage acquisition register system 1 carries out self-inspection, master control logging modle 2 exports self-checking command turn-on relay, conversion isolation module 4 accesses self-inspection normal voltage direct current+12V, and the collection voltage of master control logging modle 2 is state working properly in the error limit allowed.
Operation display module 5 adopts car-mounted display interface, and car-mounted display interface adopts vehicle-mounted liquid crystal display interface further, by the normal voltage value of vehicle-mounted liquid crystal display interface setting time, the tested voltage in each road.When locomotive voltage acquisition register system normally works, vehicle-mounted liquid crystal display interface display comprises system time, the current voltage of the 4 tested voltages in road, maximum voltage of this operation, the information of minimum voltage.Master control logging modle 2 comprises clock chip, and clock chip adopts real-time timepiece chip M41ST85W further.When register system 1 Installation and Debugging of locomotive voltage acquisition, in the vehicle-mounted liquid crystal display interface manual initialization system time.Locomotive voltage acquisition register system 1 adopts 5.7 cun of Liquid Crystal Displays, and master control logging modle 2 is by the Liquid Crystal Display of LVDS Interface Controller Operation display module 5.Locomotive voltage acquisition register system 1 has " RUN " and " setting " two working interfaces, and runnable interface can show " current voltage ", " minimum voltage ", " maximum voltage " of 4 road voltages simultaneously when system is normally run.Setting interface to the system time of locomotive voltage acquisition register system 1, unlatching or can be closed a certain voltage acquisition passage, set the normal voltage of each voltage channel (during locomotive voltage acquisition register system 1 entrucking debugging, set the On/Off of 4 road voltage sample passages, and set the normal voltage value U of open channel; When not setting normal voltage, in locomotive voltage acquisition register system 1, normally work is after 2 minutes, and the average voltage of sampling in 1 minute is as the normal voltage of voltage channel), parameter is once setting can be preserved for a long time.
Operation display module 5 also comprises action button further.Locomotive voltage acquisition register system 1 has " upwards ", " downwards ", " forward ", " backward ", " confirmation " 5 action buttons, five button arrangements in " ten " font, simple, convenient.Operation display module 5 is controlled by the logic control of a slice fpga chip completion system, FLASH and input through keyboard controls.Be interface by the processor chips SPC5200 of master control logging modle 2 with pci bus controller, be connected by SN65LVDS84AQ-Q1 driving chip with the MB86296S of the Liquid Crystal Display printer Fujisu of Operation display module 5, data, the address sharing of pci bus data, address and local bus.
Locomotive voltage acquisition register system 1 realizes dump voltage file and replacing master control logging software fast, easily by the moveable magnetic disc comprising USB flash disk.Locomotive voltage acquisition register system 1 selectes power module 3 according to locomotive storage batteries, normal work can be kept in the wide power voltage input range of 0.3Un ~ 1.7Un, when power module 3 power-off, power module 3 needs to work on 40ms, record once each channel voltage, this function is achieved through the following technical solutions.Power module 3 produces " power-off early warning " interrupt signal, and exports master control logging modle 2 to, and when supply regular power, " power-off early warning " signal exports+5V voltage signal.When locomotive voltage acquisition register system 1 input power source abnormality or when closing; 0V is set in " power-off early warning " 5ms; other output voltages of power module 3 continue to export 40ms, to ensure that locomotive voltage acquisition register system 1 completes gatherer process, and store primary voltage signal and other key messages.
The master control logging modle 2 of locomotive voltage acquisition register system 1 adopts the PowerPC high-performance processor SPC5200 of Freescale, realizes the fast recording of data, dump.Locomotive voltage acquisition register system 1 carries 512MByteFLASH and 64MByteRAM, can continuous record 100 hours under 4 road voltages all exceed the extreme case of specialized range.The Liquid Crystal Display of Operation display module 5 adopts the vehicle-mounted picture processing chip MB86296S of printer Fujisu to carry out display interface graphic plotting, by the TFT-LCD colour liquid crystal display device of the external LED-backlit of LVDS interface.The processor chips SPC5200 of master control logging modle 2 has abundant external interface, the specific embodiment of the invention is circumscribed USB, RS485 two-way external communication circuit also, and utilize the external A/D change-over circuit of the SPI interface of SPC5200B, the digitalisation input of outside tested voltage can be completed.Meanwhile, the present invention utilizes I
2the external real time clock circuit of C bus interface, for system provides high precision clock.
The present invention can show for the voltage of 0V ~ 180V various on locomotive in good time, record, Ground analysis provides solution, reports to the police in good time, be conducive to crew member's Timeliness coverage fault when a certain road electric voltage exception of locomotive.Moveable magnetic disc dump voltage log file can be adopted, and undertaken adding up, analyzing by voltage record analysis software.By the high precision record to input voltage signal, and the high speed dump of voltage log file, make it possible to voltage log file faced by ground and carry out statistical analysis, the service condition of equipment on locomotive can be grasped, be conducive to the problem of Timeliness coverage and solution power supply or voltage signal aspect.The present invention normally can work under the wide region of electrical locomotive power voltage 0.3Un ~ 1.7Un, can realize voltage stabilizing and export, and realize voltage transitions and the isolation of wide-voltage range under the power supply voltage of wide region.When tested voltage signal occurs abnormal, sound automatic alarm, faulty channel mark can be realized.The present invention is suddenly abnormal or when closing at power module 3, can realize power-off early warning, power supply exports time delay, and in power module 3 abnormal or recording voltage value again when closing suddenly, reliability is high.
Conversion isolation module 4 in specific embodiment of the invention technical scheme can also use performance-oriented Hall voltage sensor to substitute and realize.Meanwhile, master control logging modle 2 also can adopt other embedded system schemes to realize.The various chip models described in detailed description of the invention also can adopt other similar devices to substitute, and the telltale of Operation display module 5 also can adopt the read-out of other various different sizes.
In this specification sheets, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
The above is only preferred embodiment of the present invention, not does any pro forma restriction to the present invention.Although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention.Any those of ordinary skill in the art, when not departing from Spirit Essence of the present invention and technical scheme, the Method and Technology content of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solution of the present invention, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from technical solution of the present invention, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent replacement, equivalence change and modification, all still belongs in the scope of technical solution of the present invention protection.
Claims (11)
1. a locomotive voltage acquisition register system, it is characterized in that, described locomotive voltage acquisition register system comprises: master control logging modle (2), power module (3), conversion isolation module (4) and Operation display module (5), described power module (3) be input as electrical locomotive power, described power module (3) for described master control logging modle (2) and conversion isolation module (4) power supply is provided, the tested voltage input signal of described conversion isolation module (4) to 1 to 4 tunnel is sampled, and export described master control logging modle (2) to after isolation conversion is carried out to tested voltage input signal, when the tested voltage input signal in arbitrary road exceedes the normal range of setting, described master control logging modle (2) is by described Operation display module (5) display failure alarm signal, when the collection voltage of the tested voltage input signal on described 1 to 4 tunnel is all normal, described master control logging modle (2) with the first setting-up time for interval record once gather voltage, to exceed gather voltage range acquisition channel with the second setting-up time being less than described first setting-up time for interval record once gathers voltage, when gathering voltage and exceeding setting amplitude every the 3rd setting-up time change, to record for interval with the setting-up time four being less than described first setting-up time and once gather voltage.
2. a kind of locomotive voltage acquisition register system according to claim 1, it is characterized in that: described master control logging modle (2) comprises USB interface (X3), voltage log file is stored to moveable magnetic disc by USB interface (X3) by described master control logging modle (2), then carries out statistics and analysis by described moveable magnetic disc dump to PC (6).
3. a kind of locomotive voltage acquisition register system according to claim 1 and 2, is characterized in that: the input supply voltage scope of described power module (3) is 0.3U
n~ 1.7U
n, U
nfor electrical locomotive power nominal voltage.
4. a kind of locomotive voltage acquisition register system according to claim 3, it is characterized in that: the tested voltage input signal on described 1 to 4 tunnel is the voltage signal of 0V ~ 180V scope, described conversion isolation module (4), to after tested voltage input signal transmitting and converting and isolation, exports the voltage analog signal of 0V ~ 3.3V to described master control logging modle (2).
5. according to a kind of locomotive voltage acquisition register system in claim 1,2,4 described in arbitrary claim, it is characterized in that: described power module (3) inputs locomotive battery feed Un by power interface (X1), change through described power module (3), export direct current+5V, direct current+12V is the power supply of described master control logging modle (2), exporting direct current ± 15V is the power supply of described conversion isolation module (4), and exporting direct current+12V is that described conversion isolation module (4) provides voltage acquisition passage self-inspection voltage.
6. a kind of locomotive voltage acquisition register system according to claim 5, it is characterized in that: start buzzer phone after a certain road voltage in the tested voltage input signal on described 1 to 4 tunnel exceeds the scope of 0.8U ~ 1.15U and report to the police, wherein, U is normal voltage value; The background colour of the passage name on described Operation display module (5) interface is changed into warning look to identify abnormal passage simultaneously, during warning, press " confirmation " button stop alarm.
7. according to a kind of locomotive voltage acquisition register system in claim 1,2,4,6 described in arbitrary claim, it is characterized in that: the unlatching or the closedown that set tested voltage input signal sampling channel when described locomotive voltage acquisition register system (1) entrucking debugging, and the normal voltage value (U) of sampling channel is opened in setting, when not setting normal voltage value, start average voltage in rear setting-up time as normal voltage value using voltage acquisition.
8. a kind of locomotive voltage acquisition register system according to claim 7, it is characterized in that: described power module (3) exports the multi-channel relay normally open port of a road direct current+12V to described conversion isolation module (4), tested voltage input signal is connected with the normally closed port of described relay, when described locomotive voltage acquisition register system self-inspection, described master control logging modle (2) exports multi-channel relay described in self-checking command conducting, the self-inspection voltage of described conversion isolation module (4) access direct current+12V, the collection voltage of described master control logging modle (2) is state working properly in the error limit allowed.
9. according to a kind of locomotive voltage acquisition register system in claim 1,2,4,6,8 described in arbitrary claim, it is characterized in that: when the collection voltage of the tested voltage input signal on described 1 to 4 tunnel is all normal, described master control logging modle (2) is that interval record once gathers voltage with 1s, to exceeding, to gather the acquisition channel of voltage range with 20ms be that interval record once gathers voltage, when gathering voltage when 20ms change is more than 5%, be that interval record once gathers voltage with 20ms.
10. according to a kind of locomotive voltage acquisition register system in claim 1,2,4,6,8 described in arbitrary claim, it is characterized in that: described Operation display module (5) adopts car-mounted display interface, by the normal voltage value of described car-mounted display interface setting time, the tested voltage in each road; When described locomotive voltage acquisition register system normally works, car-mounted display interface display comprises system time, the current voltage of the 4 tested voltages in road, maximum voltage of this operation, the information of minimum voltage; Described master control logging modle (2) comprises clock chip, when described locomotive voltage acquisition register system Installation and Debugging, and the manual initialization system time at car-mounted display interface.
11. according to a kind of locomotive voltage acquisition register system in claim 1,2,4,6,8 described in arbitrary claim, it is characterized in that: described power module (3) produces " power-off early warning " interrupt signal, and export described master control logging modle (2) to, when supply regular power, " power-off early warning " signal exports normal voltage signal; When described locomotive voltage acquisition register system (1) input power source abnormality or when closing; " power-off early warning " is set to failure voltage signal in setting-up time; other output voltages of described power module (3) continue to export certain hour; to ensure that described locomotive voltage acquisition register system (1) completes gatherer process, and store primary voltage signal and other key messages.
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| CN108761185A (en) * | 2018-05-23 | 2018-11-06 | 郑州铁路职业技术学院 | A kind of locomotive multi-point voltage monitoring method and device based on virtual instrument |
| CN113625351A (en) * | 2021-08-17 | 2021-11-09 | 上海亨临光电科技有限公司 | Method for feeding back voltage value of detector channel |
| CN113848447B (en) * | 2021-09-06 | 2024-04-12 | 深圳市长龙铁路电子工程有限公司 | Signal waveform record analysis method, device, system and storage medium |
| CN114019358A (en) * | 2021-10-19 | 2022-02-08 | 杭州行至云起科技有限公司 | Door handle state detection device and method |
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| CN103223948A (en) | 2013-07-31 |
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