CN102030018B - Attached peripheral data acquisition and distribution device for axis counting system - Google Patents
Attached peripheral data acquisition and distribution device for axis counting system Download PDFInfo
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Abstract
The invention discloses an attached peripheral data acquisition and distribution device and an attached peripheral data acquisition and distribution method for an axis counting system. The device comprises a high-speed embedded microprocessor module and at least one series-parallel interface conversion module, wherein at least two channels are formed inside every series-parallel interface conversion module; every channel is used for receiving the data of a path of operation units of the axis counting system, reading the data through the high-speed embedded microprocessor module and outputting the data to the high-speed embedded microprocessor module; the high-speed embedded microprocessor module is used for setting a timing period of a system clock for every corresponding operation units to ensure that the first-in first-out buffer area of the channel in the corresponding series-parallel interface conversion module, which receives the data of the operation units, has a non-full set memory space when the timing period is reached; and when every timing period is reached, the data in the set memory space are acquired from the channel of the series-parallel interface conversion module corresponding to the operation units. The method disclosed by the invention can solve the problem of data packet loss when a plurality of paths of operation units are subjected to data acquisition at the same time.
Description
Technical field
The present invention relates to railway microcomputer axle counting system technical field, particularly attached peripheral data collection and the distributing device of axle counting system.
Background technology
The railway microcomputer axle counting system is used for automatic monitoring interval circuit and station circuit, take the state of detection line section, track switch and station track etc. as " free time " or " taking ".The microcomputer axle-counting system mainly comprises: arithmetic element and the axle-counting points that is assigned to the some of setting section.Send out when train brings out from one between certain detection zone of setting section, sail between this detection zone, when holding axle-counting points through dispatching a car, arithmetic element is processed the axis signal that the end axle-counting points sensor of dispatching a car produces; When train rolls away between this detection zone, when process connects car end axle-counting points, the axis signal that arithmetic element docking car end axle-counting points sensor produces is processed, by relatively entering the number of axle between this detection zone and leaving the number of axle between this detection zone, provide between this detection zone the free time/take indication.
Detect by the free time/seizure condition to each zone detection interval, can monitor the train road conditions, train is dispatched.Correspondingly, for each arithmetic element is obtained the free time/take indication information to utilize and process, axle counting system also has corresponding attached peripheral subsystem.As shown in Figure 1, this attached peripheral subsystem mainly comprises: data acquisition and distributing device, the aobvious equipment of axle and diagnostic computer.Simultaneously, also can comprise other system equipment, for example, microcomputer monitoring equipment.
Wherein, data acquisition and distributing device are mainly used in gathering the output data of multichannel (Ru Balu) arithmetic element, and described data based needs are processed, and the corresponding data after processing is exported to respectively microcomputer monitoring equipment and diagnostic computer.Simultaneously, also the corresponding data after processing can be exported to the aobvious equipment of axle, for example, the aobvious equipment of some axle may need that certain two-way in the multichannel data is carried out the number of axle and show, sends to the aobvious equipment of axle after certain two-way in the multichannel data need to being processed this moment.During specific implementation, the output data of arithmetic element are generally the data of RS-232 form, therefore for the data that need short range transmission, can be after the arithmetic element data of this RS-232 form be processed, still with the data mode output of RS-232 form, for example export to respectively microcomputer monitoring equipment and the diagnostic computer of close together.For the data of the longer Distance Transmission of needs, then need the RS-232 data are converted to the output of RS-485 data, such as exporting to the aobvious equipment of distant axle or microcomputer monitoring equipment etc.
Microcomputer monitoring equipment is used for the main running state of monitoring and record railway signals equipment, for grasping the current running state of signalling set and carry out accident analysis, railway interests provides scientific basis, has simultaneously the mathematical logic arbitration functions, when signalling set work departs from predetermined threshold or occurs when unusual, can reach alarm, avoid because of breakdown of equipment or operate safety, the running on time affect train against regulations.For axle counting system, microcomputer monitoring equipment be used for the monitoring track section the free time/take indication, train enters the number of axle of section, the state of communication, the running state of system.And when the axle counting system fault, microcomputer monitoring can obtain and alarm, so that the signal personnel can in time repair, assurance equipment uninterruptedly uses.Diagnostic computer is used for according to the data that receive the operation conditions of axle counting system being monitored.The aobvious equipment of axle is used for carrying out the train number of axle according to the data that receive and shows, with the operation conditions of monitoring train.
In the prior art, the inner structure of data acquisition and distributing device comprises as shown in Figure 2: the level switch module of single chip processing module and corresponding each arithmetic element.Wherein, level switch module is used for carrying out electrical level match between arithmetic element and single chip processing module.Single chip processing module is used for according to the mode of timesharing repeating query the serial data of each arithmetic element being carried out acquisition and processing, afterwards, with the data transmission after processing to other external equipment.
But in the method, because the data of each arithmetic element are to be in the state that continuously sends, the data packet that is each arithmetic element continuously sends according to certain time interval, and owing to be subject to the restriction of mcu resource, when micro controller system gathers the data of one of them arithmetic element at poll, the data of other arithmetic elements will can be lost inevitably.As seen, data acquisition of the prior art and distributing device can be made losing of paired data, and portable relatively poor.
Summary of the invention
In order to overcome the above problems, one aspect of the present invention provides a kind of attached peripheral data collection and distributing device and method of axle counting system, to solve the data-bag lost problem that data acquisition was brought of multiplex arithmetric unit.
Attached peripheral data collection and the distributing device of axle counting system provided by the present invention comprise: high speed embedded microprocessor module and at least one string-and interface modular converter, wherein,
Each the string-and the inside of interface modular converter be provided with at least two passages, each passage has the first-in first-out buffer zone and the first-in first-out buffer zone that is used for being ready for sending data that are used for receive data, each passage is used for receiving the output data of axle counting system one tunnel arithmetic element, and when high speed embedded microprocessor module reads described data, described data are exported to described high speed embedded microprocessor module;
Described high speed embedded microprocessor module is used for arranging for each corresponding arithmetic element according to the baud rate of every road arithmetic element data transmission the timing cycle of system clock, so that when described timing cycle arrives, corresponding string-and interface modular converter in receive the passage of described arithmetic element output data the first-in first-out buffer zone have non-full setting storage content; When each timing cycle arrives, from the string that receives corresponding arithmetic element output data-and the interface modular converter passage gather the data of described setting storage content.
Preferably, described high speed embedded microprocessor module further arranges certain reception buffer zone according to the setting storage content of the every road of correspondence arithmetic element for each arithmetic element, and the arithmetic element data that gather are stored in the corresponding reception buffer zone; The data based needs of each arithmetic element in each reception buffer zone that gathers are carried out respective handling, with the corresponding data output after processing.
Preferably, described high speed embedded microprocessor module is further used for the data after processing are converted to the formatted data output that corresponding external equipment is supported.
Preferably, described high speed embedded microprocessor module is further used for the data behind the sampling and processing are externally carried out back-up storage with the form of daily record in the memory device.
Preferably, described high speed embedded microprocessor module comprises: timed task trigger module and timed task processing module, wherein,
Described timed task trigger module is used for arranging for each corresponding arithmetic element according to the baud rate of every road arithmetic element data transmission the timing cycle of system clock, so that described timing cycle is when arriving, corresponding string-and interface modular converter in receive the passage of described arithmetic element output data the first-in first-out buffer zone can have non-full setting storage content; When described timing cycle arrives, specify the timed task processing module that the data of described arithmetic element are gathered;
The timed task processing module is used for when each timing cycle of timed task trigger module arrives, according to the indication of timed task trigger module, from corresponding string-and interface modular converter gather corresponding arithmetic element data.
Preferably, described timed task processing module is further used for for each corresponding arithmetic element certain reception buffer zone being set according to the setting storage content of every road arithmetic element data, and the arithmetic element data that gather are stored in the corresponding reception buffer zone; The data based needs of each arithmetic element in each reception buffer zone that gathers are carried out respective handling, with the corresponding data output after processing.
Preferably, described high speed embedded microprocessor module further comprises:
Format converting module is used for the data after the described timed task processing module processing are converted to the formatted data output that corresponding external equipment is supported.
Preferably, the data after described timed task processing module is processed are the data of RS232 form; Described format converting module comprises:
The first format conversion submodule, being used for the data after the described timed task processing module processing is the RS485 formatted output by the RS232 format conversion; And/or,
The second format converting module, being used for the data after the described timed task processing module processing is the formatted output that the LCD/TS display equipment is supported by the RS232 format conversion; And/or,
The 3rd format converting module, being used for the data after the described timed task processing module processing is the formatted output that Ethernet protocol is supported by the RS232 format conversion.
Preferably, described string-and interface modular converter employing asynchronism transceiver TL16C554 realization, described high speed embedded microprocessor module adopts the ARM9 embedded microprocessor.
Attached peripheral data collection and the distribution method of axle counting system provided by the present invention, the method be applied to comprise high speed embedded microprocessor module and at least one string-and the data acquisition and distributing device of interface modular converter in, wherein, each the string-and the inside of interface modular converter be provided with at least two passages, each passage has the first-in first-out buffer zone and the first-in first-out buffer zone that is used for being ready for sending data that are used for receive data, and each passage is used for receiving the output data of axle counting system one tunnel arithmetic element; Comprise:
High speed embedded microprocessor module arranges the timing cycle of system clock for each corresponding arithmetic element according to the baud rate of every road arithmetic element data transmission, so that when described timing cycle arrives, corresponding string-and interface modular converter in receive the passage of described arithmetic element output data the first-in first-out buffer zone have non-full setting storage content;
Start timer, each string-and interface modular converter receive data from each arithmetic element, the data that receive are stored in the first-in first-out buffer zone of respective channel;
When each timing cycle arrives, high speed embedded microprocessor module from the string that receives corresponding arithmetic element output data-and the interface modular converter passage gather the data of described setting storage content.
Preferably, the method further comprises: high speed embedded microprocessor module arranges certain reception buffer zone according to the setting storage content of every road arithmetic element data for each corresponding arithmetic element, and the arithmetic element data that gather are stored in the corresponding reception buffer zone; The data based needs of each arithmetic element in each reception buffer zone that gathers are carried out respective handling, with the corresponding data output after processing.
Preferably, the method further comprises: the data after high speed embedded microprocessor module will be processed are converted to the formatted data output that corresponding external equipment is supported.
Can find out from such scheme, in the embodiment of the invention, by string-and interface modular converter is set, receive when can realize the multiplex arithmetric unit, in addition, by setting make string-and interface modular converter in receive the time cycle that the first-in first-out buffer zone of the passage of each arithmetic element has non-full setting storage content, can guarantee high speed embedded microprocessor module according to this time cycle when gathering the data of one tunnel arithmetic element wherein, the data of other arithmetic element can not lost, thereby have solved the data-bag lost problem that the data acquisition of multiplex arithmetric unit brings.
In addition, the technical scheme in the embodiment of the invention has also increased a lot of expanded functions, has improved user's experience.
Description of drawings
The below will make the clearer elaboration of the present invention of those of ordinary skill in the art and other feature and advantage by describe exemplary embodiment of the present invention in detail with reference to accompanying drawing, in the accompanying drawing:
Fig. 1 is the structural representation of the attached peripheral subsystem of axle counting system;
Fig. 2 is the data acquisition of subsystem shown in Figure 1 in the prior art and the inner structure scheme drawing of distributing device;
Fig. 3 is the data acquisition of subsystem shown in Figure 1 in the embodiment of the invention and the inner structure scheme drawing of distributing device;
Fig. 4 is the inner structure scheme drawing of device high speed embedded microprocessor module shown in Figure 3 in the embodiment of the invention;
Fig. 5 is the exemplary process diagram of data acquisition and distribution method in the embodiment of the invention.
The specific embodiment
For making purpose of the present invention, technical scheme and advantage clearer, referring to the accompanying drawing embodiment that develops simultaneously, the present invention is described in more detail.
Fig. 3 is the inner structure scheme drawing of data acquisition and distributing device in the embodiment of the invention.As shown in Figure 3, this device comprises: high speed embedded microprocessor module and at least one string-and interface modular converter.
Wherein, each the string-and the inside of interface modular converter be provided with at least two passages, each passage has first-in first-out (FIFO) buffer zone and the fifo buffer that is used for being ready for sending data that are used for receive data, each passage is used for receiving the output data of one tunnel arithmetic element, and when high speed embedded microprocessor module reads described data, described data are exported to described high speed embedded microprocessor module.This string-and interface modular converter can have the programmable Baud rate generator so that select flexibly the transmitting-receiving frequency of data.
String-and the quantity of the quantity of the interface modular converter arithmetic element that can gather as required determine that for example, if need to gather the data of eight tunnel arithmetic elements, and each interface modular converter has four passages, then string-and the quantity of interface modular converter be two.
For example, during specific implementation, this string-and interface modular converter can adopt asynchronism transceiver TL16C554, it has four passages, can with four road serial signal communications, its each passage is with the fifo buffer of two 16 bytes, and one of them is used for receive data, and one is used for being ready for sending data.When being operated in fifo mode lower time, needn't or send frame data for every reception and just produce once and interrupt, thereby reduce and interrupt the number of times that occurs, improve and receive efficient and the reliability that sends serial signal.
High speed embedded microprocessor module is used for arranging for each corresponding arithmetic element according to the baud rate of every road arithmetic element data transmission the timing cycle of system clock, so that when described timing cycle arrives, corresponding string-and interface modular converter in receive the passage of described arithmetic element output data fifo buffer (for example have non-full setting storage content, it is half-full time gap that fifo buffer can be set), when each timing cycle arrives, from the string that receives corresponding arithmetic element output data-and the interface modular converter passage gather the data of described setting storage content.
During specific implementation, high speed embedded microprocessor module can also arrange certain reception buffer zone for each arithmetic element according to the setting storage content of the every road of correspondence arithmetic element, and the arithmetic element data that gather are stored in the corresponding reception buffer zone.Afterwards, high speed embedded microprocessor module is carried out respective handling to the data based needs of each arithmetic element in each reception buffer zone that gathers, corresponding data after processing is exported to subsequent processing device, the external equipment such as microcomputer monitoring equipment as previously described and diagnostic computer.In addition, if the data after processing need to be carried out format conversion, then this high speed embedded microprocessor module can further be converted to the formatted data that corresponding external equipment is supported with the data after processing, and then exports to corresponding external equipment.
For example, if the data after processing are the data of RS232 form, if then data need to be carried out long-distance transmissions, then can carry out protocol conversion to data, export after the data of RS232 form being converted to the data of RS485 form.Further, in order to improve the testing staff to comprehensive, the real-time monitoring of axle counting system, data acquisition in the present embodiment and distributing device can also be supported the external equipment of LCD (liquid crystal display) and/or TS (touch-screen), can by the LCD/TS display equipment in the external equipment show the train number of axle in the track section that axle counting system monitors, track section the free time/take indication etc., visualization interface in a variety of forms, the real-time status information of demonstration axle counting system.Correspondingly, the high speed embedded microprocessor module in the present embodiment also is used for the corresponding data after processing is converted into formatted output that LCD (liquid crystal) and/or TS (touch-screen) support to peripheral LCD/TS display equipment.Simultaneously, in order to improve network extension function, satisfy networking requirement, data acquisition in the present embodiment and distributing device can also be supported ethernet communication, and namely the high speed embedded microprocessor module in the present embodiment also is used for the corresponding data after processing is converted into the formatted output of procotol support to the ether network.
During specific implementation, the core of this high speed embedded microprocessor module can adopt the ARM9 embedded microprocessor, such as the EP9315 of Cirrus Logic, and the ARM920T kernel, dominant frequency is 200MHz, embedded MaverickCrunchTM math co-processor.
Wherein, if string-and interface modular converter employing asynchronism transceiver TL16C554, and the timing cycle of each arithmetic element is that the situation of half-full (namely taking 8 bytes of reception buffer zone) arranges according to each FIFO passage, then high speed embedded microprocessor module can be each arithmetic element and arranges one more than or equal to the reception buffer zone of 8 bytes, in order to the arithmetic element data that gather are stored.
Further, for the data to this data acquisition and distributing device sampling and processing back up, in order to follow-up checking, high speed embedded microprocessor module in the present embodiment can be carried out back-up storage with the form of daily record with the data behind the sampling and processing, for example can be stored in the external memory storage, in external SDRAM and FLASH.Correspondingly, data acquisition and distributing device can further comprise: data memory module is used for the data behind the form storing high-speed embedded microprocessor module sampling and processing of daily record.
In the embodiment of the invention, adopted information loop buffer technology, by regularly collection string of high speed embedded microprocessor module-and interface modular converter in be in the buffer data of non-full state, so that high speed embedded microprocessor module is when processing the data of current arithmetic element, the data of other arithmetic element can not lost.
During specific implementation, the inside of the high speed embedded microprocessor module in the present embodiment realizes that multiple specific implementation form can be arranged, and the below only enumerates wherein that a kind of specific implementation form realizes being described in detail to its inside.
Fig. 4 shows a kind of inner structure scheme drawing of embodiment of the invention high speed embedded microprocessor module.As shown in Figure 4, this high speed embedded microprocessor module can comprise timed task trigger module and timed task processing module.
Wherein, the timed task trigger module is used for arranging for each corresponding arithmetic element according to the baud rate of every road arithmetic element data transmission the timing cycle of system clock, so that when described timing cycle arrives, corresponding string-and interface modular converter in receive the passage of described arithmetic element output data fifo buffer can have non-full setting storage content, when described timing cycle arrived, indication timed task processing module gathered the data of described arithmetic element.
The timed task processing module is used for when each timing cycle of timed task trigger module arrives, according to the indication of timed task trigger module, from corresponding string-and interface modular converter gather corresponding arithmetic element data.
During specific implementation, the timed task processing module can also arrange certain reception buffer zone for each corresponding arithmetic element according to the setting storage content of every road arithmetic element data, and the data that gather are stored in the reception buffer zone of correspondence, afterwards, the data based needs of each arithmetic element in each reception buffer zone that gathers are carried out respective handling, the corresponding data after processing is exported to peripheral subsequent processing device.
Further, if the data after processing need to be carried out format conversion, then this high speed embedded microprocessor module can further comprise: format converting module, be used for the data after the processing of timed task processing module are converted to the formatted data that corresponding external equipment is supported, then export to corresponding external equipment.
For example, data among Fig. 4 after to process as the situation of RS232 form as example, correspondingly, high speed embedded microprocessor module in the present embodiment can further comprise: the first format converting module, being used for the data after the processing of timed task processing module is the RS485 formatted output by the RS232 format conversion.The second format converting module, being used for the data after the processing of timed task processing module is the formatted output that the LCD/TS display equipment is supported by the RS232 format conversion.The 3rd format converting module, being used for the data after the processing of timed task processing module is the formatted output that Ethernet protocol is supported by the RS232 format conversion.
In addition, if high speed embedded microprocessor module further with the data behind the sampling and processing with the form back-up storage of daily record externally in the memory device, then this timed task processing module also can further be stored in the form of the data behind the sampling and processing with daily record in the memory device of high speed embedded microprocessor module-external.
Above-mentioned only is a kind of specific implementation form of the inside realization of high speed embedded microprocessor module, those skilled in the art can go out other specific implementation form according to this specific implementation formal argument, for example, the inside implementation structure of high speed embedded microprocessor module can also be divided from another angle, as comprises: hardware driving layer module, inner nuclear layer module and application layer module.
Wherein, hardware driving layer module mainly comprises the serial port drive submodule, and LCD/TS driven element module, ethernet driven element module and the employed USB driven element of the expanded function module etc. of expansion.
The inner nuclear layer module mainly comprises management of process submodule, file management submodule, memory management submodule, interruption and interruption processing submodule, system initialization submodule etc.
The application layer module mainly comprises the application operating submodule of the display operation submodule of serial communication application program submodule, LCD/TS and communications protocol conversion and employed other application program submodule of expanded function etc.
Mutually coordinate between the modules, jointly realize the function of high speed embedded microprocessor module, give unnecessary details no longer one by one herein.
More than the data acquisition in the embodiment of the invention and distributing device are described in detail, the below is described in detail the data acquisition in the embodiment of the invention and distribution method again, the method is applied in the data acquisition and distributing device in the present embodiment.
Fig. 5 is the exemplary process diagram of data acquisition and distribution method in the embodiment of the invention.As shown in Figure 5, this flow process comprises the steps:
In this step, specifically can comprise: to the string-and interface modular converter carry out initialization.In addition, if also there is other peripheral data input interface, such as LCD/TS interface and network interface etc., then also these interfaces are carried out initialization.
In this step, can also for each corresponding arithmetic element certain reception buffer zone be set according to the setting storage content of every road arithmetic element data.
Step 503 starts timer, each string-and interface modular converter receive data from each arithmetic element, the data that receive are stored in the fifo buffer of respective channel.
In this step, the data that gather can be stored in the corresponding reception buffer zone.Further, this method can also comprise step 505, and namely high speed embedded microprocessor module is carried out respective handling to the data based needs of each arithmetic element in each reception buffer zone that gathers, and the corresponding data after processing is exported to subsequent processing device.
In this step 505, if the data after processing need to be carried out format conversion, then this high speed embedded microprocessor module can further be converted to the formatted data that corresponding external equipment is supported with the data after processing, and then exports to corresponding external equipment.
Further, high speed embedded microprocessor module can be stored in the form of the data behind the sampling and processing with daily record in the external memory storage, as is stored among CDROM, the FLASH etc.
The above is preferred embodiment of the present invention only, is not for limiting protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to and replace and improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. attached peripheral data collection and the distributing device of an axle counting system is characterized in that this device comprises: high speed embedded microprocessor module and at least one string-and interface modular converter, wherein,
Each the string-and the inside of interface modular converter be provided with at least two passages, each passage has the first-in first-out buffer zone and the first-in first-out buffer zone that is used for being ready for sending data that are used for receive data, each passage is used for receiving the output data of axle counting system one tunnel arithmetic element, and when high speed embedded microprocessor module reads described data, described data are exported to described high speed embedded microprocessor module;
Described high speed embedded microprocessor module is used for arranging for each corresponding arithmetic element according to the baud rate of every road arithmetic element data transmission the timing cycle of system clock, so that when described timing cycle arrives, corresponding string-and interface modular converter in receive the passage of described arithmetic element output data the first-in first-out buffer zone have non-full setting storage content; When each timing cycle arrives, from the string that receives corresponding arithmetic element output data-and the interface modular converter passage gather the data of described setting storage content.
2. attached peripheral data collection and the distributing device of axle counting system according to claim 1, it is characterized in that, described high speed embedded microprocessor module further arranges certain reception buffer zone according to the setting storage content of the every road of correspondence arithmetic element for each arithmetic element, and the arithmetic element data that gather are stored in the corresponding reception buffer zone; The data based needs of each arithmetic element in each reception buffer zone that gathers are carried out respective handling, with the corresponding data output after processing.
3. attached peripheral data collection and the distributing device of axle counting system according to claim 2 is characterized in that, described high speed embedded microprocessor module is further used for the data after processing are converted to the formatted data output that corresponding external equipment is supported.
4. attached peripheral data collection and the distributing device of axle counting system according to claim 2, it is characterized in that described high speed embedded microprocessor module is further used for the data behind the sampling and processing are externally carried out back-up storage with the form of daily record in the memory device.
5. attached peripheral data collection and the distributing device of axle counting system according to claim 1 is characterized in that, described high speed embedded microprocessor module comprises: timed task trigger module and timed task processing module, wherein,
Described timed task trigger module is used for arranging for each corresponding arithmetic element according to the baud rate of every road arithmetic element data transmission the timing cycle of system clock, so that described timing cycle is when arriving, corresponding string-and interface modular converter in receive the passage of described arithmetic element output data the first-in first-out buffer zone can have non-full setting storage content; When described timing cycle arrives, specify the timed task processing module that the data of described arithmetic element are gathered;
The timed task processing module is used for when each timing cycle of timed task trigger module arrives, according to the indication of timed task trigger module, from corresponding string-and interface modular converter gather corresponding arithmetic element data.
6. attached peripheral data collection and the distributing device of axle counting system according to claim 5, it is characterized in that, described timed task processing module is further used for for each corresponding arithmetic element certain reception buffer zone being set according to the setting storage content of every road arithmetic element data, and the arithmetic element data that gather are stored in the corresponding reception buffer zone; The data based needs of each arithmetic element in each reception buffer zone that gathers are carried out respective handling, with the corresponding data output after processing.
7. attached peripheral data collection and the distributing device of axle counting system according to claim 6 is characterized in that, described high speed embedded microprocessor module further comprises:
Format converting module is used for the data after the described timed task processing module processing are converted to the formatted data output that corresponding external equipment is supported.
8. attached peripheral data collection and the distributing device of axle counting system as claimed in claim 7 is characterized in that, the data after described timed task processing module is processed are the data of RS232 form; Described format converting module comprises:
The first format conversion submodule, being used for the data after the described timed task processing module processing is the RS485 formatted output by the RS232 format conversion; And/or,
The second format converting module, being used for the data after the described timed task processing module processing is the formatted output that the LCD/TS display equipment is supported by the RS232 format conversion; And/or,
The 3rd format converting module, being used for the data after the described timed task processing module processing is the formatted output that Ethernet protocol is supported by the RS232 format conversion.
9. according to claim 1-8 attached peripheral data collection and the distributing device of the described axle counting system of any one, it is characterized in that, described string-and interface modular converter employing asynchronism transceiver TL16C554 realization, described high speed embedded microprocessor module adopts the ARM9 embedded microprocessor.
10. attached peripheral data collection and the distribution method of an axle counting system, it is characterized in that, the method be applied to comprise high speed embedded microprocessor module and at least one string-and the data acquisition and distributing device of interface modular converter in, wherein, each the string-and the inside of interface modular converter be provided with at least two passages, each passage has the first-in first-out buffer zone and the first-in first-out buffer zone that is used for being ready for sending data that are used for receive data, and each passage is used for receiving the output data of axle counting system one tunnel arithmetic element; The method comprises:
High speed embedded microprocessor module arranges the timing cycle of system clock for each corresponding arithmetic element according to the baud rate of every road arithmetic element data transmission, so that when described timing cycle arrives, corresponding string-and interface modular converter in receive the passage of described arithmetic element output data the first-in first-out buffer zone have non-full setting storage content;
Start timer, each string-and interface modular converter receive data from each arithmetic element, the data that receive are stored in the first-in first-out buffer zone of respective channel;
When each timing cycle arrives, high speed embedded microprocessor module from the string that receives corresponding arithmetic element output data-and the interface modular converter passage gather the data of described setting storage content.
11. attached peripheral data collection and the distribution method of axle counting system according to claim 10, it is characterized in that, the method further comprises: high speed embedded microprocessor module arranges certain reception buffer zone according to the setting storage content of every road arithmetic element data for each corresponding arithmetic element, and the arithmetic element data that gather are stored in the corresponding reception buffer zone; The data based needs of each arithmetic element in each reception buffer zone that gathers are carried out respective handling, with the corresponding data output after processing.
12. attached peripheral data collection and the distribution method of axle counting system according to claim 11, it is characterized in that the method further comprises: the data after high speed embedded microprocessor module will be processed are converted to the formatted data output that corresponding external equipment is supported.
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| CN103327012A (en) * | 2013-05-30 | 2013-09-25 | 江西洪都航空工业集团有限责任公司 | All-purpose RS232/422/485 data receiving method based on communication protocol |
| CN103986462B (en) * | 2014-05-30 | 2017-01-04 | 中国电子科技集团公司第五十八研究所 | Possesses the Fast Frequency Estimation circuit of high-speed interface |
| CN106428113A (en) * | 2016-10-27 | 2017-02-22 | 上海自仪泰雷兹交通自动化系统有限公司 | On-line axle counter monitoring system |
| CN110539779B (en) * | 2019-08-20 | 2021-08-24 | 深圳科安达电子科技股份有限公司 | Visual axle counting system based on monitoring |
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