CN106227111A - A kind of crane monitoring data collection equipment - Google Patents

Abstract

A kind of crane monitoring data collection equipment, including CPU, RS 232 interface, USB interface, RS 485 interface, RJ45 interface, SD card module, EEPROM module, RAM module, SPC3 module, PHY module；RS 232 interface, USB interface, SD card module, EEPROM module, RAM module, SPC3 module, PHY module are all connected with CPU；RS 485 interface is connected with SPC3 module；RJ45 interface is connected with PHY module.This patent achieves the collection that the data high-speed of crane monitoring system is stable, achieve the data sampling requirement of the 100ms each cycle that national standard requires, and because extending data cached district and monitoring data that external SD storage card is can be carried out continuously storage, will not interrupt because of the reason of PC system, it is ensured that crane monitoring system everyway is greatly improved.

Description

A kind of crane monitoring data collection equipment

Technical field

This patent belongs to technical field of automatic control, relates to a kind of crane monitoring data collection equipment.

Background technology

State Council puts into effect " State Council is about the notice strengthening enterprise safety operation work further " (state in July, 2010 Send out (2010) No. 23).Wherein Article 9 requires that " large scale hoisting machinery security monitoring management system to be installed " is to lifting apparatus Security control proposes and is distinctly claimed.In March, 2011, in order to carry out, " State Council is about strengthening enterprise safety operation further The notice of work " requirement, improve large scale hoisting machinery essential safety, prevent and reduce hoisting machinery severe and great casualty to occur, On March 25th, 2011, State General Administration for Quality Supervision and national security supervision general bureau combine and print and distribute that " (large scale hoisting machinery is pacified about printing and distributing Dress security monitoring management system embodiment) notice " (state quality inspection spy join (2011) No. 137), to arrangement with carry out large-scale Hoisting machinery installs security monitoring management system, is arranged, specify that guiding theory, target, pilot scope, it is proposed that Compulsive requirement, 2013, progressively the large scale hoisting machinery in all coming of new all installed security monitoring management system, from 2014 Year start, all large scale hoisting machinery on security monitoring management system, the end of the year 2015 are all installed, peace is not yet installed The large scale hoisting machinery of full monitoring management system, will not use.On its tangible port machine of crane monitoring system or shipbuilding door machine Already have and be widely applied, but the HMI software being mainly also based on Ge great PLC manufacturer and providing has realized, but at universal crane, On ordinary bridge crane, application is seldom, even if the application of the large-scale metallurgical crane of steel mill is also less.Main cause Or complexity is low in port machine and shipbuilding door machine, demand is not the strongest.But the appearance of the standard along with country, at general On heavy-duty machine, ordinary bridge crane, on crane for steelworks use, also begin to promote the application of crane monitoring system.

The domestic R&D work also having many manufacturers to start crane monitoring system, and have many products to put into effect , and start to promote and use in little scope.But, the software of these manufacturers exploitation is substantially also based on Ge great PLC manufacturer and carries For OPC service interface come.I.e. use pure software means to realize the data between crane monitoring system and PLC to lead to News.And in " GBT 28264-2012 hoisting machinery security monitoring management system ", 6.8.5 bar explicitly points out " at cycle of operation The sampling period of interior system not should be greater than 100ms ", due to the characteristic of of PC operating system itself, this mode exists relatively Greatly delayed and the situation that there is cycle instability, so be to ensure that long-time stable is reliable under with pure software means Data acquisition is carried out for the cycle with 100ms.Simultaneously because the unstable and uncertain factor of PC itself is it is possible that count According to obstruction, card, machine of delaying, the situation of system crash even occurs, the most just cannot ensure to monitor the seriality of data.

Patent content

In order to solve the problems referred to above, this patent provides one to efficiently solve scheme, it is achieved crane monitoring data collection Equipment, for crane monitoring system data acquisition.This patent uses embedded control system, for autonomous device, it is provided that can mesh The Profibus interface being most widely used on front market, can carry out communication with the PLC of multiple producer and be connected.There is high speed number According to acquisition function, it is achieved the data acquisition of national standard 100ms each cycle.Have caching function may caching 10 minutes former Beginning data, it is ensured that in unstable networks, blocking occurs in host computer monitoring software, restart in the case of initial data do not lose.And And itself there is SD card as external memory, the initial data no less than 1 week can be preserved.Even if should be at no supervision In the case of, host computer occurs in the case of the machine of delaying, collapse it is also ensured that the seriality of initial data.These measures are at host computer After being restored, the data of monitoring system can be made after being carried out resynchronisation operation by host computer to keep seriality, do not lose Data.

This patent solves its technical problem and be the technical scheme is that

In main crane monitoring system, it is also based on pure software mode realizes crane data Gather.Wherein the crane monitoring system of 80% is the HMI software exploitation provided with PLC manufacturer.15% is soft with general HMI Part is developed, and other 5% is the crane monitoring system software using domestic manufacturers recently to develop.1 example is not the most also had to adopt The mode combined with software develops crane monitoring system.This results in the self character because of PC system, and cannot stably may be used Lean on, carry out the collection of plc data for a long time.Even if having employed the data communication card of the CP5612 of Siemens, it is impossible to meet country The sampling request being not more than 100ms each cycle of standard regulation, because the upper computer software of Siemens can only configuration minimum 250ms Sampling period, and when the circle collection variable that configuration is too much, the whole-sample cycle of system will increase considerably.

Because the inherent character of PC, its work being not suitable for doing high-speed data acquisition.Because a PC operating system peace After installing into, even if not running any software, its backstage also has more or less a hundred process running, and adds the service routine on backstage, Foot has nearly 200 programs to run.Even if using industry special-purpose computer, this situation also cannot be avoided.When installing After application software, after the most large-scale HMI configuration software, PLC programming software, system whole progress can reach at peak value Nearly 300, because PC system uses timeslice mode to run, i.e. CPU is the operation time of each process of mean allocation , even if using the CPU of Multi-core, also it is can not to control certain process to carry out the operation of high speed high priority.And because of For cost and the reason of data capacity, jumbo mechanical hard disk can only be used as storage device, and mechanical hard disk is to vibrations Very sensitive, and crane shakes strongly in running, can in order to ensure data at the beginning of mechanical hard disk design By property, having done many precautions against earthquakes, and these precautions against earthquakes are all to sacrifice speed as cost, this results in, at crane In running, hard disk is it is possible that block situation about timing, and the response that the card of hard disk will result directly in PC system is slow, this The data collection cycle resulting in crane monitoring system software is extended, and becomes uncertain, even occurs that collection period is lost Situation, so crane monitoring system cannot realize at a high speed in PC operating system, stable, reliable data acquisition.

The collecting device of based on embedded system the pure hardware of this patent, solves the problems referred to above.

A kind of crane monitoring data collection equipment, including CPU, RS-232 interface, USB interface, RS-485 interface, RJ45 Interface, SD card module, EEPROM module, RAM module, SPC3 module, PHY module；RS-232 interface, USB interface, SD snap gauge Block, EEPROM module, RAM module, SPC3 module, PHY module are all connected with CPU；RS-485 interface is connected with SPC3 module； RJ45 interface is connected with PHY module.

RS232 interface uses as exterior arrangement interface, connects PC and can carry out parameter configuration by hyper terminal, with Shi Zuowei communication interface and some PLC carry out data communication.

SD card, as the port of connection PC, is mapped as USB flash disk, by computer by SD card by USB interface

Data derive and back up；SD card module monitors data as backing storage, the PLC preserving about a week.

EEPROM module is used as the memorizer that configuration parameter preserves.

Memory expansion bus is connected to extend out RAM and SPC3 module；RAM module is as data cache

Memorizer；The two module CPU will be conducted interviews by memory bus；Iic bus is connected to EEPROM module, CPU accesses EEPROM module by iic bus；SDIO bus is connected to SD card, and CPU passes through SDIO bus access SD card；RMII Interface is connected to PHY module, and CPU will carry out ethernet communication by RMII monitoring.SPC3 module coordinates RS-485 interface to realize Profibus communication, carries out data exchange with the PLC of all support Profibus master station modes；SPC3 chip be for The intelligent substation interface chip of Profibus, identifies the baud rate in the range of 9.6Kbps～12Mbps, operating temperature :-40 automatically ～85 DEG C, carry out data exchange by 8 bit data bus with CPU；The memory expansion bus utilizing CPU is led to this module News coordinate RS-485 interface to realize Profibus communication.

PHY module and RJ45 interface constitute ethernet communication network, with the PLC number supporting ethernet communication

According to exchange, also serve as carrying out the means of data exchange with host computer simultaneously.

There is inside this CPU memory expansion bus, iic bus, SDIO bus, usb bus, RMII interface, built-in RTC Clock；External high-frequency clock enters the high-frequency clock interface of CPU, provides work clock source for CPU；Low-speed clock enters RTC and returns Road, as the clock source of RTC work.

Wherein, CPU uses embedded high-speed CPU, for data acquisition tracking work, use Profibus and with Too net Peripheral Interface realizes the data communication with PLC.The data/address bus of PLC mainly has two big classes, Profibus in the market Industrial field bus and Ethernet industrial field bus.Both buses occupy the share in market more than 70%.Use both Interface can realize and on market the overwhelming majority PLC between data communication.And this patent also extends RS-232 interface, In particular cases can realize the data communication with some PLC by this interface.In order to ensure the seriality of data acquisition, extend out Large Copacity RAM memory, for caching the initial data of PLC.With the main monitoring data heap(ed) capacity of current crane as base Standard, carries out RAM Capacity Selection, can at least ensure the data buffer storage of 10 minutes.These configuration ensure that PC monitoring system Occur that the short time blocks, card, when even restarting, can ensure the seriality of data.In order to avoid the most extreme situation goes out Existing, i.e. there is system crash in PC monitoring system, when needing system of reinstalling and monitoring software, also can guarantee that the continuous of data Property, this patent also extends external Large Copacity SD card, it is ensured that the Coutinuous store of the PLC initial data at least 1 week.No matter PC There is any unexpected situation in monitoring system, can ensure the seriality of data.

Owing to using pure hardware device directly and PLC carries out the mode of communication and realizes data acquisition, CPU only need to be performed number According to collection, caching, unloading, the work of upper machine communication, do not have incoherent task to take CPU, and embedded system also may be used To set the priority of task, there is preemptive type operational mode, it is ensured that the process of data acquisition has limit priority, no Can be interrupted because CPU to complete other tasks or postpone, thus ensure that the data sampling work of 100ms each cycle can be steady Determine to carry out reliably.

Owing to this patent equipment all uses solid-state hardware to realize, there is no machine operation equipment, so in anti-seismic performance There is the performance of this excellence, the problem of data acquisition interruption, delay etc. will be caused to occur because of the vibrations of crane.

In order to ensure the versatility of this patent equipment, this equipment is provided with multiple operational factor, can be connect by RS-232 Mouthful be configured, thus meet different occasion under operation demand, in order to ensure the reliable in parameters storage set, and power down Not losing, it extends eeprom memory, arranges parameter for preservation.

This patent achieves the collection that the data high-speed of crane monitoring system is stable, it is achieved that national standard requires The data sampling requirement of 100ms each cycle, and because extend data cached district and monitoring data that external SD storage card is Storage can be carried out continuously, will not because of PC system reason and interrupt.Thus ensure that crane monitoring system is fitted at environment Ying Xing, reliability, stability aspect all have increased significantly, and therefore effectively solving monitoring system in the market cannot Meet the sampling request of 100ms each cycle and long-time stable cannot carry out this difficult problem of data acquisition reliably.

Accompanying drawing explanation

Fig. 1 is this patent electrical systematic drawing.

Fig. 2 is this patent CPU structure chart.

Fig. 3 is this patent SPC3 function structure chart.

Detailed description of the invention

Specific implementation of the patent example is described in detail below in conjunction with technical scheme and accompanying drawing.

Embodiment:

Fig. 1 is the electrical systematic drawing of this patent, uses STMicw Electronics of Italy technical grade embedded type CPU, and model is STM32F407, this CPU have 168MHz dominant frequency, the program storage of built-in 1MB and the RAM of 192kB, have the highest 210MIPS Arithmetic speed, the most per second can perform 210,000,000 instructions, there is stability high, the advantage that operating temperature range is high.Such as Fig. 1 This patent uses this CPU as core processor, has extended out RS232 interface, USB interface, RS-485 interface, RJ45 interface, SD Card module, EEPROM module, RAM module, SPC3 module, PHY module.RS232 interface uses as exterior arrangement interface, connects PC can carry out parameter configuration to this equipment by hyper terminal.Simultaneously some occasion be also used as communication interface and certain A little PLC carry out data communication.The SD card of this equipment, as the port of connection PC, can be mapped as USB flash disk by USB interface, permissible By computer, the data derivation in SD card is backed up.SD card module, as the backing storage of this equipment, can preserve one PLC about week monitors data.EEPROM module is used as the memorizer that configuration parameter preserves.RAM module is as high speed number According to buffer memory, owing to CPU built-in RAM is less, it is impossible to meet the demand of cache, so this patent extends out 4MB byte SRAM memory, be used as PLC monitoring data cache.SPC3 module coordinates RS-485 interface to realize Profibus communication, can carry out data exchange with the PLC of all support Profibus master station modes.PHY module and RJ45 connect Mouth constitutes ethernet communication network, can carry out data exchange with the PLC of most of support ethernet communication, also make simultaneously For carrying out the means of data exchange with host computer.

Fig. 2 is the CPU structure chart that this patent uses.Have inside this CPU memory expansion bus (Address Bus and Data Bus), iic bus, SDIO bus, usb bus, RMII interface, built-in RTC clock.External high-frequency clock enters CPU's High-frequency clock interface, provides work clock source for CPU.Low-speed clock enters RTC loop, as the clock source of RTC work.

Memory expansion bus is connected to extend out RAM and SPC3 module.The two module CPU will be entered by memory bus Row accesses.Iic bus is connected to EEPROM module, and CPU accesses EEPROM module by iic bus.SDIO bus is connected to SD Card, CPU passes through SDIO bus access SD card.RMII interface is connected to PHY module, and CPU will carry out Ethernet by RMII monitoring Communication.

Fig. 3 is the structure chart of the SPC3 module that this patent uses.SPC3 chip be Siemens Company research and development for The intelligent substation interface chip of Profibus, can identify the baud rate in the range of 9.6Kbps～12Mbps, work temperature automatically Degree :-40～85 DEG C, carries out data exchange by 8 bit data bus with CPU.Can easily design intelligence substation device.This is specially Profit utilizes the memory expansion bus of CPU to carry out communication with this module to coordinate RS-485 interface to realize Profibus communication.In figure XT1 is the clock source of this module, and TXD, RTS, RXD are connected to RS-485 interface and realize Profibus communication.

Claims (1)

1. a crane monitoring data collection equipment, connects including CPU, RS-232 interface, USB interface, RS-485 interface, RJ45 Mouth, SD card module, EEPROM module, RAM module, SPC3 module, PHY module；It is characterized in that,

Described RS-232 interface, USB interface, SD card module, EEPROM module, RAM module, SPC3 module, PHY module all with CPU is connected；RS-485 interface is connected with SPC3 module；RJ45 interface is connected with PHY module；

RS232 interface uses as exterior arrangement interface, connects PC and can carry out parameter configuration by hyper terminal, makees simultaneously Data communication is carried out with some PLC for communication interface；

SD card, as the port of connection PC, is mapped as USB flash disk by USB interface, the data derivation in SD card is carried out by computer Backup；SD card module monitors data as backing storage, the PLC preserving about a week；

EEPROM module is used as the memorizer that configuration parameter preserves；

Memory expansion bus is connected to extend out RAM and SPC3 module；RAM module is as data cache memorizer；These are two years old Individual module CPU will be conducted interviews by memory bus；Iic bus is connected to EEPROM module, and CPU is accessed by iic bus EEPROM module；SDIO bus is connected to SD card, and CPU passes through SDIO bus access SD card；RMII interface is connected to PHY module, CPU will carry out ethernet communication by RMII monitoring.SPC3 module coordinates RS-485 interface to realize Profibus communication, with all The PLC supporting Profibus master station mode carries out data exchange；SPC3 chip is the intelligent substation interface core for Profibus Sheet, automatically identifies the baud rate in the range of 9.6Kbps～12Mbps, operating temperature :-40～85 DEG C, by 8 bit data bus with CPU carries out data exchange；The memory expansion bus utilizing CPU carries out communication and coordinates RS-485 interface to realize with this module Profibus communication；

PHY module and RJ45 interface constitute ethernet communication network, carry out data exchange with the PLC supporting ethernet communication, with Time also serve as carrying out the means of data exchange with host computer；

There is memory expansion bus, iic bus, SDIO bus, usb bus, RMII interface, during built-in RTC inside this CPU Clock；External high-frequency clock enters the high-frequency clock interface of CPU, provides work clock source for CPU；Low-speed clock enters RTC loop, Clock source as RTC work.