CN100468412C - Portable serial number recorder and implementation method - Google Patents
Portable serial number recorder and implementation method Download PDFInfo
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- CN100468412C CN100468412C CNB2007100995310A CN200710099531A CN100468412C CN 100468412 C CN100468412 C CN 100468412C CN B2007100995310 A CNB2007100995310 A CN B2007100995310A CN 200710099531 A CN200710099531 A CN 200710099531A CN 100468412 C CN100468412 C CN 100468412C
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Abstract
The invention discloses a Portable serial data recorder for collecting and recording the data of the industry on-site device, the traffic line on-site device and the geographic exploration on-site device, which comprises the following parts: a RS232 serial line interface receiving modular and a RS422 serial line interface receiving modular for collecting the data of on-site device RS232 interface and RS422 interface, a Secure Digital saving card for saving the acquired data, a FAT16/32 file system for recording the data with the file form in the Secure Digital saving card, an USB communication modular for transferring the data to the computer by USB protocol, a power and a Li-ion battery modular for providing the needed electronic energy. The data recorder achieves the analysis and dealing of the on-site data off the site environment.
Description
Technical field
The present invention relates to a kind of portable serial number recorder and implementation method, belong to and be used for industrial circle, field of traffic, the collection of the on-the-spot electronic equipment generation in geographical mapping field data and the technical field of storage.
Background technology
In industrial circle, field of traffic, the geographical mapping field, the application of computer technology and electronic technology more and more widely, field apparatus has lot of data to need to handle, service data and diagnostic data as industrial control equipment, traffic flow collection device data, chain status data of railway station equipment and interval opertaing device operational data are surveyed and drawn regional GPS and are detected data etc.These equipment much do not have access network, and control center or laboratory obtain these equipment work data if desired, need send someone to go to the scene to gather.
In general, on-site data gathering work comprises the transmission of Data Receiving, data storage, data.So-called Data Receiving obtains data by certain interface or communication protocol from field apparatus exactly; Data storage receives interim recording medium and the recording mode of storing of data exactly; Data transmission is exactly that data are transferred to transmission interface that recording medium adopted or the host-host protocol that the final data user is used for handling from interim recording medium.
Existing on-site data gathering and record scheme emerge in an endless stream, and magnetic medium analog record, computer acquisition card record, network remote collection etc. are arranged.The magnetic medium analog acquisition is to utilize magnetic-media recording analog informations such as tape, and technology is backward relatively; Computer acquisition card record is to insert special-purpose capture card to carry out record on multi-purpose computer, and its cost is higher and carry inconvenience; The network remote collection is to utilize network that data are sent to the direct record of data terminal, and its is dependency network relatively, is not having network or is being not suitable for using under the environment of network and can't realizes.
Site environment is abominable, and equipment disperses, and the region is extensive; The collecting device complexity is difficult to carry, and has increased field staff's labor capacity; The collecting device complicated operation costs an arm and a leg, and has risk, when gathering successively by point, needs the people on duty, inefficiency.The design proposes a kind of portable serial number acquisition and recording instrument and recording method at on-site data gathering and record.
Summary of the invention
The problem that the present invention solves is: under the field conditions such as environment is abominable, equipment point polydispersion, the operational data of industry spot, scene, traffic route, geographical exploration field apparatus is gathered and record.The present invention is simple to operate, be easy to carry, need not post, can stablize, finish efficiently the data acquisition task, reduces labour intensity and human cost.Gathering under many, the widespread situations of target, be fit to place in batches, the flow process of regaining has improved collecting efficiency in batches,
The present invention is achieved in that a kind of portable serial number acquisition and recording instrument, comprise serial communication module, flush bonding processor, Secure Digital memory module, usb communication module, power module, serial communication module receives data from the RS232 mouth or the RS422 mouth of field apparatus, and processor carries out data processing and data-switching; Secure Digital memory module is carried out the storage and the record of data, and usb communication module and computing machine carry out data communication, uploads the data of collection.
Flush bonding processor: based on 32 bit processors of ARM framework, control other module, finish data processing and data-switching;
Serial communication module: be used to receive RS232 and RS422 serial data;
Secure Digital memory module:, finish data storage with file mode for meeting the storage card of Secure Digital calliper model;
Usb communication module: provide registering instrument to be connected, uploaded the data file of record to computing machine by it with the data communication of computing machine; Can also carry out battery charge by USB port;
Power module and Li-ion battery: for registering instrument provides electric energy.
A kind of portable serial number recorder implementation method,
Step by RS232, RS422 serial ports record acquisition device data is arranged;
Step by Secure Digital storage card storage data is arranged;
Have by the FAT16/32 document form data are recorded in step in the Secure Digital storage card;
Step from usb protocol to computing machine that upload record data by is arranged.
External power source or self battery provide work energy.
A kind of portable serial number recorder implementation method, at the scene under the environment, the serial ports of RS232, RS422 serial ports and field apparatus by connecting portable serial number acquisition and recording instrument is realized the collection of field equipment data; By Secure Digital storage card with the document form record data; Under non-at-scene environment, by the processing of usb protocol with data upload computer realization field data.
1) the present invention has following advantage:
2) by RS232, RS422 serial port image data, be widely used in field apparatus.
3) adopt Secure Digital card as the plug-in type storage medium, can change at any time after record is full, support plug and play; Read-write speed height, max cap. can reach the 2G byte; Volume is little and meet the requirement of industry spot, has guaranteed the safety integrity of data.
4) data of Cai Jiing are recorded in the SD card with the FAT16/32 file mode, and data extract is convenient.Computing machine both can pass through the direct reading and recording file of usb communication port of plug and play, also can be from the direct reading and recording file of Secure Digital card.
5) carry battery operatedly not having also can utilize under the external power source, adapt to on-the-spot changeable environment.
6) a kind of novel serial data recording mode is simple to operate, portable easy-to-use.Open the back timing acquiring, regularly close, it is on duty to need not personnel in the middle of the record.
7) gathering under many, the widespread situations of target, be fit to place in batches, the flow process of regaining has improved collecting efficiency in batches, also can be used as standby register instrument with oneself.
Description of drawings
Fig. 1 is the portable serial number recorder structured flowchart, comprises necessary function modules such as flush bonding processor, serial received module, SD card memory module, power module;
Fig. 2 is a portable serial number recorder work main flow chart;
Fig. 3 is serial ports collecting flowchart figure;
Fig. 4 is that process flow diagram is interrupted in the serial ports collection;
Fig. 5 is a SD card data storage process flow diagram;
Fig. 6 is the data file process flow diagram;
Fig. 7 is usb communication and data upload process flow diagram.
Embodiment
Embodiment 1: below in conjunction with accompanying drawing enforcement of the present invention is described as follows: in Fig. 1, registering instrument structurally mainly comprises following parts:
Serial received module: be used to receive RS232 and RS422 serial data;
Fig. 1 is the registering instrument structured flowchart, and an example of flush bonding processor is AT91Sam7S64, and it is based on 32 bit processors of ARM framework, controls other module, finishes data processing and data converting function; Flush bonding processor is connected with Secure Digital memory module by the spi bus that meets the SPI agreement, and the SecureDigital memory module is the storage card that meets Secure Digital calliper model, finishes data storage function with file mode; Flush bonding processor is connected with the usb communication module by the usb bus that meets usb protocol, and the usb communication module provides registering instrument to be connected with the data communication of computing machine, uploads the data file of record to computing machine by it; Flush bonding processor is connected with the serial received module by 2 general serial synchronous asynchronous communication ports, and the serial received module is used to receive RS232 and RS422 serial data; Flush bonding processor is connected with input/output module by input/output signal able to programme, and input/output module is used for the duty and the input working parameter of display recorder; Power supply and Li-ion battery module provide electric energy for registering instrument.
Fig. 2 is the registering instrument workflow diagram.After registering instrument was opened and to be powered on, initialization processor at first was as initialization processor working frequency 48MHz, initialization processor register, initialization interrupt vector, initialization task storehouse etc.; Initialization pilot lamp delivery outlet then, the indication mechanism duty; Key-press status is read in initialization button input port; The initialization peripheral interface, as the spi bus interface of initialization processor and SD card, the bus interface of initialization processor and usb communication module etc.; Then set up 3 tasks: A:SD card storage data task, B: serial ports image data task, the C:USB communication task, the step of three tasks is described in detail in Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7.Begin task at last, all tasks are ready, wait for management and running.
Fig. 3 and Fig. 4 are that process flow diagram is interrupted in serial ports collecting flowchart figure and serial ports collection, and narration is by the step of RS232, RS422 serial ports record acquisition device data, at first from task B inlet test com-state, if test crash sends serial ports test errors information; Extract the serial ports parameter then, these parameters are set by the user, comprise baud rate, start bit, position of rest etc.; Check the baud rate in the parameter, if baud rate has been set direct loading serial ports parameter; If baud rate is not set, then carry out the auto-baud monitoring; If the indication of serial ports parameter detecting mistake is sent in auto-baud monitoring failure,, load the serial ports parameter if auto-baud is monitored successfully; Follow the two cache algorithm of initialization, i.e. 2 512 byte buffer memorys of initialization are respectively buffer memory A and buffer memory B, and data deposit buffer memory A earlier in, and buffer memory B restores after A is full; Direct memory access (DMA) and corresponding interruption are set; Open serial-port, opening entry.
After step shown in Figure 3 was finished, the data that serial ports receives deposited buffer memory A automatically in, and after buffer memory A was filled with 512 bytes, data continued to deposit in buffer memory B and produce serial ports DMA interruption simultaneously.Operate by the Interrupt Process that serial ports DMA interruption inlet enters among Fig. 4; At first the pilot lamp indication enters Interrupt Process; Send metadata cache A then and completely indicate, notice SD card storage data task can be carried out data storage operations; The address of alternate data buffer memory A and B, the address of B before A represents, B represents the address of former A; The pilot lamp indication is had no progeny in withdrawing from, and interrupts outlet from serial ports DMA and withdraws from.
Fig. 5 is a SD card data storage process flow diagram, and narration is by the step of Secure Digital storage card storage data.At first enter SD card data storage flow process from task A inlet, detect SD card slot, if there is not the SD card, sending the SD card does not have ready indication; If the SD card is ready, initialization SD card comprises SPI interface initialization and SD card work initialization; Then SD is sticked into the row test, comprise reading of essential informations such as production firm, capacity, production time, version, product ID, comprise readwrite tests SD card data field; If test crash sends the indication of SD card test crash; If test successfully, then check the data acquisition result, whether the judgment data buffer memory is full; Completely indicate if receive the metadata cache that serial ports collection DMA interrupts sending, then seek the metadata cache address,, continue wait if do not obtain indication then hang-up; After finding the metadata cache address, 512 initial bytes of address are write in the file in the SD card, file operation is described in detail in Fig. 6; After all operations is finished, close the SD card.
Fig. 6 is the data file process flow diagram, and narration is recorded in step in the Secure Digital storage card by the FAT16/32 document form with data.At first enter the data file flow process, read boot section information, seek the FAT table according to the BPB table of boot section from D; Read the FAT table, seek data field blank on the SD card by the information on the FAT table; Upgrade the FAT table, the data that write down in the buffer memory are write blank data area; Read the root directory area data at last, judge whether the file of record data is set up; If the file that does not have discovery to set up, then newly-built one log file; If log file exists, the information of updating file then is as file size, writing time etc.
Fig. 7 is usb communication and data upload process flow diagram, and the step of record data is uploaded in narration to computing machine by usb protocol.Enter the usb communication flow process from task C inlet, at first initialization SD card comprises SPI interface initialization and SD card work initialization; Initialization Mass Storage equipment and agreement then; Initialization USB device port and interruption wait for that the USB master controller and the equipment of computing machine carries out exchanges data; After USB device is inserted computing machine, produce look-at-me, system is provided with different zone bits by the response interrupt service subroutine; The event processing module that circulation is carried out judges whether current event is the USB special event, if the cleaning zone bit is handled USB and plugged and unplugged incident etc.; If not, judge whether it is the reception incident, if clear corresponding zone bit receives data; If not, judge whether it is the transmission incident, if clear corresponding zone bit sends data; If not, do not carry out any operation, enter circular test.After usb communication module and computing machine were finished operations such as the enumerating of equipment, configuration, computing machine was identified as Mass Storage with the SD card, and the SD card is mapped as a disk, allowed in usb protocol and the enterprising line data exchange of Mass Storage agreement.Operating personnel can find the Mass Storage equipment and the disk of SD card correspondence on computers, by duplicate, paste, disk such as shearing operation the carrying out operation of document data record.
Claims (7)
1. a portable serial number recorder implementation method is characterized in that: the step by RS232, RS422 serial ports record acquisition device data is arranged;
Step by Secure Digital storage card storage data is arranged;
Have by FAT16/32 file system form data are recorded in step in the Secure Digital storage card;
Step from usb protocol to computing machine that upload record data by is arranged;
After having registering instrument to open to power on, initialization processor at first, initialization processor register, initialization interrupt vector, initialization task storehouse; Initialization pilot lamp delivery outlet then, the indication mechanism duty; Key-press status is read in initialization button input port; The initialization peripheral interface, the bus interface of initialization processor and usb communication module; Then set up 3 tasks: task A:Secure Digital storage card is SD card storage data tasks, task B: serial ports image data task, and task C:USB communication task begins task at last, and all tasks are ready, wait for the step of management and running.
2. a kind of portable serial number recorder implementation method according to claim 1, it is characterized in that: by the step of RS232, RS422 serial ports record acquisition device data, at first from task B inlet test com-state, if test crash sends serial ports test errors information; Extract the serial ports parameter then, these parameters are set by the user, comprise baud rate, start bit, position of rest; Check the baud rate in the parameter, if baud rate has been set direct loading serial ports parameter; If baud rate is not set, then carry out the auto-baud monitoring; If the indication of serial ports parameter detecting mistake is sent in auto-baud monitoring failure,, load the serial ports parameter if auto-baud is monitored successfully; Follow the two cache algorithm of initialization, i.e. 2 512 byte buffer memorys of initialization are respectively buffer memory A and buffer memory B, and data deposit buffer memory A earlier in, and buffer memory B restores after A is full; Direct memory access DMA and corresponding interruption are set; Open serial-port, opening entry.
3. a kind of portable serial number recorder implementation method according to claim 1 is characterized in that: the data that serial ports receives deposit buffer memory A automatically in, and after buffer memory A was filled with 512 bytes, data continued to deposit in buffer memory B and produce serial ports DMA interruption simultaneously; Interrupt inlet by the direct memory access DMA of serial ports and enter the Interrupt Process operation; At first the pilot lamp indication enters Interrupt Process; Send metadata cache A then and completely indicate, notice SD card storage data task can be carried out data storage operations; The address of alternate data buffer memory A and buffer memory B, buffer memory A represents the address of former buffer memory B, buffer memory B represents the address of former buffer memory A; The pilot lamp indication is had no progeny in withdrawing from, and interrupts outlet from the direct memory access DMA of serial ports and withdraws from.
4. a kind of portable serial number recorder implementation method according to claim 1 is characterized in that: the step of Secure Digital storage card storage data; At first enter SD card data storage flow process from task A inlet, detect SD card slot, if there is not the SD card, sending the SD card does not have ready indication; If the SD card is ready, initialization SD card comprises SPI interface initialization and SD card work initialization; Then SD is sticked into row test, comprise reading of production firm, capacity, production time, version, product ID essential information, comprise readwrite tests SD card data field; If test crash sends the indication of SD card test crash; If test successfully, then check the data acquisition result, whether the judgment data buffer memory is full; Completely indicate if receive the metadata cache that the direct memory access DMA of serial ports collection interrupts sending, then seek the metadata cache address,, continue to wait for if do not obtain indication then hang-up; After finding the metadata cache address, 512 initial bytes of address are write in the file in the SD card, after all operations is finished, close the SD card.
5. a kind of portable serial number recorder implementation method according to claim 1, it is characterized in that: data are recorded in step in the Secure Digital storage card by the FAT16/32 document form, at first enter the data file flow process from the SD card, read boot section information, seek the FAT table according to the BPB table of boot section; Read the FAT table, seek data field blank on the SD card by the information on the FAT table; Upgrade the FAT table, the data that write down in the buffer memory are write blank data area; Read the root directory area data at last, judge whether the file of record data is set up; If the file that does not have discovery to set up, then newly-built one log file; If log file exists, the information of updating file then is as file size, writing time.
6. a kind of portable serial number recorder implementation method according to claim 1, it is characterized in that: step from usb protocol to computing machine that upload record data by, enter the usb communication flow process from task C inlet, at first initialization SD card comprises SPI interface initialization and SD card work initialization; Initialization Mass Storage equipment and agreement then; Initialization USB device port and interruption wait for that the USB master controller and the equipment of computing machine carries out exchanges data; After USB device is inserted computing machine, produce look-at-me, system is provided with different zone bits by the response interrupt service subroutine; The event processing module that circulation is carried out judges whether current event is the USB special event, if the cleaning zone bit is handled USB and plugged and unplugged incident; If not, judge whether it is the reception incident, if clear corresponding zone bit receives data; If not, judge whether it is the transmission incident, if clear corresponding zone bit sends data; If not, do not carry out any operation, enter circular test, after usb communication module and computing machine are finished the enumerating of equipment, configuration operation, computing machine is identified as Mass Storage with the SD card, and the SD card is mapped as a disk, allows in usb protocol and the enterprising line data exchange of Mass Storage agreement.
7. according to a kind of portable serial number acquisition and recording instrument of claim 1 or 2 or 3 or 4 or 5 or 6 described methods, it is characterized in that: comprise serial communication module, flush bonding processor, Secure Digital memory module, usb communication module, power module,
Flush bonding processor: based on 32 bit processors of ARM framework, control other module, finish data processing and data-switching;
Serial communication module: be used to receive RS232 and RS422 serial data;
Secure Digital memory module:, finish data storage with file mode for meeting the storage card of Secure Digital calliper model;
Usb communication module: provide registering instrument to be connected, uploaded the data file of record to computing machine by it with the data communication of computing machine; Can also carry out battery charge by USB port;
Power module and Li-ion battery: for registering instrument provides electric energy;
Flush bonding processor is 32 bit processors, flush bonding processor is connected with the SecureDigital memory module by spi bus, flush bonding processor is connected with the usb communication module by usb bus, the usb communication module provides registering instrument to be connected with the data communication of computing machine, uploads the data file of record to computing machine by it; Flush bonding processor is connected with the serial received module by 2 general serial synchronous asynchronous communication ports, and flush bonding processor is connected with input/output module by input/output signal able to programme.
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| CNB2007100995310A CN100468412C (en) | 2007-05-24 | 2007-05-24 | Portable serial number recorder and implementation method |
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| CNB2007100995310A CN100468412C (en) | 2007-05-24 | 2007-05-24 | Portable serial number recorder and implementation method |
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| CN100468412C true CN100468412C (en) | 2009-03-11 |
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2007
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