CN2446587Y - Intelligent protocol processor - Google Patents
Intelligent protocol processor Download PDFInfo
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- CN2446587Y CN2446587Y CN 00239710 CN00239710U CN2446587Y CN 2446587 Y CN2446587 Y CN 2446587Y CN 00239710 CN00239710 CN 00239710 CN 00239710 U CN00239710 U CN 00239710U CN 2446587 Y CN2446587 Y CN 2446587Y
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Abstract
The utility model relates to an intelligent protocol processor which comprises a microprocessor 1, a photoelectric isolation unit 2 connected with a first serial port of the microprocessor 1, an RS422/485 reporting drive unit 3 connected with the photoelectric isolation unit 2, and an intelligent device communications unit connected with a second serial port of the microprocessor 1, wherein the intelligent communications unit comprises intelligent device interface units with RS232 and RS484/422 interfaces, and a control device which limits the interface units to connect to the second serial port according to commands of the microprocessor 1. The intelligent protocol processor can convert protocols of different types of intelligent devices to uniform protocols, the junction can be realized; serial ports and transmission resources can be saved, the system structure is order, and the expansion and the maintenance are convenient.
Description
The utility model relates to Communication Control Technology, is specifically related to a kind of intelligent protocol processor.
In monitoring and control system, run into the access problem of smart machine through regular meeting.Described smart machine be meant have RS-232, the equipment of RS-422 or RS-485 communication interface, for example intelligent power, intelligent oil engine, intelligent air condition, intelligent UPS, intelligent kilowatt-hour meter, general collector, battery meter, intelligent entrance guard, Intellight voltage-stabilizing device, intelligent cigarette sense, air pressure automatically-controlled door, controller for solar, high-low pressure equipment etc.The characteristics of this smart machine be can be by its communication interface readout equipment running status and parameter etc., some smart machine can also come the running status of opertaing device by communication interface.In in early days the monitoring and control system, the mode of ' computing machine+multi-serial-port card ' is mainly adopted in the access of smart machine, the major defect of this mode is: 1) can not solve the problem that smart machine can not be altogether effectively, often can not communicate by letter or burn communication interface even equipment when ground wire is uneven; 2) each equipment need take a serial port; Even, make each equipment need take a serial port, and computing machine does not often have enough serial ports or cause the transfer resource wretched insufficiency because most smart machines mainly provides the RS-232 mouth; 3) because long line will be considered electrostatic induction and problem such as lightning-arrest when inserting, often to increase an isolation module, make the with high costs of smart machine access in equipment end; 4) system architecture is in disorder, expansion and difficult in maintenance; 5) can not solve the access of nonstandard traffic rate smart machine; 6) can not solve the access problem of special smart equipment.
In existing monitoring and control system, the major defect that has a kind of access way (OCI-5) access way to exist is: 1) system response time is lower, and signal reaction is blunt when system is huge; 2) can not solve the access problem of special smart equipment.In addition, some monitoring and control system have also been used UPC-32, and the major defect of this mode is: 1) different smart machines adopt different software (will change software chip), software maintenance difficulty; Do not consider problems such as static, induction thunder when 2) long line inserts; 3) there are not remote maintenance, remote debugging function; 4) there is not the data filter function; 5) there is not the EMC protection.
The purpose of this utility model is to provide a kind of intelligent protocol processor, can overcome the various shortcoming that above-mentioned prior art exists, except the various dissimilar smart machines of applicable access, also have the system response time height, structure flexibly, advantages such as easy to use and maintenance.
The purpose of this utility model is to realize like this, construct a kind of intelligent protocol processor, comprise microprocessor 1, the watchdog unit 6 that is connected with microprocessor 1, program storage unit (PSU) 7 and data storage cell 8, and the photoelectricity isolated location 2 that is connected with described microprocessor 1 first serial respectively and the RS422/485 that is connected with described photoelectricity isolated location 2 report driver element 3, and the smart machine communication unit that is connected with described microprocessor 1 second serial, described intelligence communication unit comprise RS232 interface smart machine interface unit 4 and RS484/422 interface smart machine interface unit 5 and according to from the order decision of described microprocessor 1 with a control device that is connected to the second serial of described microprocessor 1 in RS232 interface smart machine interface unit 4 and the described RS484/422 interface smart machine interface unit 5.
Described microprocessor 1 adopts and comprises that the model of 2 serial ports is the cpu chip of INTEL386EX.
Described program storage unit (PSU) 7 comprises board software and device driver.
Board software in the described program storage unit (PSU) 7 comprises main task program, resource manager and multiple-task management, wherein multiple-task management is used for multitask is dispatched, the main task program is responsible for host computer communication and system's control, described multiple task management adopts the timeslice of 200 μ S to dispatch, and adopts the timeslice of 200 μ S to control the receipts of RS-485/send out and switch.
Device driver in the described program storage unit (PSU) 7 can manage smart machine.
Implement the intelligent protocol processor that the utility model provides, have the following advantages: (1) can become the protocol conversion of dissimilar smart machines unified agreement, has the function of tandem, has not only saved serial ports and transfer resource greatly, make that also system architecture is neat, be convenient to expansion and maintenance; (2) but every can insert the smart machine that networking is distinguished in same class band address; (3) adopt photoelectric isolation technology, make smart machine and supervisory system network isolate fully electric; (4) adopt multi-tasking, make smart machine and supervisory system network on information, isolate fully; (5) the acquisition interface traffic rate can be provided with arbitrarily between 110bps-38400bps, therefore can support the access of nonstandard traffic rate smart machine; (6) access of support specific installation; (7) have remote maintenance functions, can the remote equipment debugging, system maintenance and software upgrading; (8) have the real time data hold function, the data filter function is arranged; (9) different smart machines use identical product, download the corresponding driving program; (10) communication self check, self-starting, restore funcitons; (11) have the EMC protection, meet the IEC1000-4 standard.
In conjunction with the accompanying drawings and embodiments, further specify characteristics of the present utility model, in the accompanying drawing:
Fig. 1 is the logic diagram of the utility model intelligent protocol processor hardware;
Fig. 2 is the block diagram of the institutional framework of expression the utility model intelligent protocol processor software;
Fig. 3 is the circuit theory diagrams of house dog part in the utility model intelligent protocol processor;
Fig. 4 is the circuit theory diagrams of light isolated part in the utility model intelligent protocol processor;
Fig. 5 is the circuit theory diagrams of program storage unit (PSU) in the utility model intelligent protocol processor;
Fig. 6 is the circuit theory diagrams of communications interface unit in the utility model intelligent protocol processor.
Fig. 7 is the complete circuit schematic diagram of the utility model intelligent protocol processor.
As shown in Figure 1, the utility model intelligent protocol processor comprises that microprocessor unit MCU1, the photoelectricity isolated location 2 that is connected with MCU input/outgoing interface and the RS422/485 that is connected with photoelectricity isolated location 2 report driver element 3, the same RS232 that is connected with described MCU1 gathers driver element 4 and RS485/422 gathers driver element 5, also comprises the watchdog unit 6, program memory cell 7 and the data storage cell 8 that are connected with described MCU1.
In the hardware block diagram shown in Fig. 1, microprocessor unit MCU1 can adopt INTEL386EX as processor, minimum control system of the structure of using.And two serial ports that use INTEL386EX to provide, one of them connects smart machine (RS232 gathers driver element 4, RS485/422 gathers driver element 5), and one by reporting driver element 3 to communicate by letter with control center.
In software organization's synoptic diagram of the intelligent protocol processor of the present utility model shown in Fig. 2, resource management module 201 switches between two modules by task dispatch 202, promptly or the device driver 203 or the executive director that carry out to download be engaged in 204.
In order to guarantee the reliability of system; system has increased hardware monitoring circuit WATCHDOG (watchdog circuit) as shown in Figure 3; when CPU moves just often; CPU periodic refreshing watchdog circuit; when CPU operation exception or deadlock; watchdog circuit does not overflow because of there being refresh signal, and output level-RES is with cpu reset.
In the telecommunication circuit link, adopted photoelectric isolating circuit as shown in Figure 4, optocoupler is isolated signal of communication with light signal, to avoid because of do not cause the damage of supervisory system or smart machine altogether.
Fig. 5 has shown eeprom circuit, and all configuration datas in the utility model device all are placed among the EEPROM, have improved the security of system configuration data greatly.
In the communication interface circuit shown in Fig. 6, communication interface has adopted the compatible design of RS-232/422/485, and as shown in the figure, several diodes have constituted and gate logic, and interface directly inserts at the different communication resources, without dial-up or selection is set.
The parameter of total system is all used the software mode setting in addition, does not use dial-up or wire jumper equally.Systematic parameter adopts serial EEPROM to preserve separately, has increased the reliability of system.The whole veneer of system is contained in the metal shell, helps the shielding of disturbing.
In the intelligent protocol processor of the present utility model, its software work principle is such, constructs its software and comprises two relatively independent parts, i.e. board software and device driver.Wherein, board software immobilizes, and device driver is different because of the difference of equipment, but its framework is identical.Board software comprises resource manager, multiple-task management and main task program; Wherein multiple-task management is responsible for the scheduling of multitask, and the main task program is responsible for operations such as upper machine communication and system's controls.Device driver is finished the management function of smart machine, and it need be downloaded according to the distinct device that connected, and as of system from task run.The driver of smart machine is an independently program, writes and debugged the corresponding equipment driver according to the type of smart machine earlier on PC, re-uses specific purpose tool and becomes file destination, downloads to OCE48 by serial port.Because the running environment of device driver is identical, so can adopt identical support resource, identical translation and compiling environment and identical debugging enironment, apparatus for establishing driver storehouse and shared platform (built-in function platform, compiling platform, debug platform), thereby save software development cost greatly, satisfy user's demand apace.
Multitask in the software of the present utility model adopts the timeslice of 200uS to dispatch, and makes task executions seem very level and smooth.Control the receipts/switching of RS-485 in addition with the timeslice of 200uS, make OCE48 can guarantee the access of the smart machine of various response speeds.
Communication clock is directly taken from the clock of CPU, and the crystal oscillator of 40MHz provides the communication clock of 10MHz for serial ports, when making off-gauge traffic rate between 110～38400bps, can both directly insert according to the error that allows.
The secondary protocol data type of flow of a kind of compatibility that the utility model provides can be carried out remote debugging, software remote debugging and the remote maintenance functions of equipment.Software of the present utility model has adopted storehouse to monitor verification, communication monitoring, interrupt monitoring back-to-back, stop safety techniques such as the overtime startup in back from task run supervision, device driver with main task, it cooperates with hardware WATCHDOG, and the system that makes occurs having self-starting, self-recovering function after the abnormality.
Claims (5)
1, a kind of intelligent protocol processor, comprise microprocessor 1, it is characterized in that, also comprise: the watchdog unit 6 that is connected with microprocessor 1, program storage unit (PSU) 7 and data storage cell 8, and the photoelectricity isolated location 2 that is connected with described microprocessor 1 first serial and the RS422/485 that is connected with described photoelectricity isolated location 2 report driver element 3, and the smart machine communication unit that is connected with described microprocessor 1 second serial, described intelligence communication unit comprise RS232 interface smart machine interface unit 4 and RS484/422 interface smart machine interface unit 5 and according to from the order decision of described microprocessor 1 with a control device that is connected to the second serial of described microprocessor 1 in RS232 interface smart machine interface unit 4 and the described RS484/422 interface smart machine interface unit 5.
According to the described intelligent protocol processor of claim 1, it is characterized in that 2, described microprocessor 1 adopts and comprises that the model of 2 serial ports is the cpu chip of INTEL386EX.
According to the described intelligent protocol processor of claim 1, it is characterized in that 3, described program storage unit (PSU) 7 comprises board software and device driver.
4, according to the described intelligent protocol processor of claim 3, it is characterized in that, board software in the described program storage unit (PSU) 7 comprises main task program, resource manager and multiple-task management, wherein multiple-task management is used for multitask is dispatched, the main task program is responsible for host computer communication and system's control, described multiple task management adopts the timeslice of 200 μ S to dispatch, and adopts the timeslice of 200 μ S to control the receipts of RS-485/send out and switch.
According to the described intelligent protocol processor of claim 3, it is characterized in that 5, the device driver in the described program storage unit (PSU) 7 can manage smart machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00239710 CN2446587Y (en) | 2000-09-28 | 2000-09-28 | Intelligent protocol processor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00239710 CN2446587Y (en) | 2000-09-28 | 2000-09-28 | Intelligent protocol processor |
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| CN2446587Y true CN2446587Y (en) | 2001-09-05 |
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| CN 00239710 Expired - Lifetime CN2446587Y (en) | 2000-09-28 | 2000-09-28 | Intelligent protocol processor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101827105A (en) * | 2010-05-03 | 2010-09-08 | 北京大学 | Optimization method of protocol processor design |
| CN101208678B (en) * | 2005-06-30 | 2010-11-17 | Nxp股份有限公司 | Software layer for communication between RS-232 to I2C translation IC and a host |
| CN103760810A (en) * | 2014-01-30 | 2014-04-30 | 中国石油集团东方地球物理勘探有限责任公司 | Remote measuring terminal controller |
| CN107370738A (en) * | 2017-07-27 | 2017-11-21 | 上海艺巢信息技术有限公司 | Main frame is controlled in a kind of multi-protocols based on arm processor |
| CN107577633A (en) * | 2017-07-31 | 2018-01-12 | 彩虹无人机科技有限公司 | A kind of unmanned aerial vehicle onboard Mission Management Computer |
-
2000
- 2000-09-28 CN CN 00239710 patent/CN2446587Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101208678B (en) * | 2005-06-30 | 2010-11-17 | Nxp股份有限公司 | Software layer for communication between RS-232 to I2C translation IC and a host |
| CN101827105A (en) * | 2010-05-03 | 2010-09-08 | 北京大学 | Optimization method of protocol processor design |
| CN101827105B (en) * | 2010-05-03 | 2013-02-06 | 北京大学 | Optimization method of protocol processor design |
| CN103760810A (en) * | 2014-01-30 | 2014-04-30 | 中国石油集团东方地球物理勘探有限责任公司 | Remote measuring terminal controller |
| CN107370738A (en) * | 2017-07-27 | 2017-11-21 | 上海艺巢信息技术有限公司 | Main frame is controlled in a kind of multi-protocols based on arm processor |
| CN107577633A (en) * | 2017-07-31 | 2018-01-12 | 彩虹无人机科技有限公司 | A kind of unmanned aerial vehicle onboard Mission Management Computer |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: EMERSON NETWORK POWER CO., LTD Free format text: FORMER NAME OR ADDRESS: HUAWEI ELECTRIC TECHNOLOGY CO LTD, SHENZHEN CITY |
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| CP03 | Change of name, title or address |
Address after: Floor 3 floor, Huadian floor, Huadian building, Shenzhen District, Longgang Patentee after: EMERSON NETWORK POWER Co.,Ltd. Address before: Longgang district production center factory building, third stories, sixth layers, Shenzhen Patentee before: Shenzhen Huawei Electric Technology Co.,Ltd. |
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| C56 | Change in the name or address of the patentee |
Owner name: NO. 1, KEJIGONGYEYUANKEFA ROAD, NANSHAN DISTRICT, Free format text: FORMER NAME OR ADDRESS: 518129 WANGYUZHONG, 3/F, BLOCK 1, HUADIAN WORKSHOP BUILDING, BANXUEGANG INDUSTRIAL ZONE, LONGGANG DISTRICT, SHENZHEN, GUANGDONG |
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| CP03 | Change of name, title or address |
Patentee address after: 518057 No. 1, FA Lu, Nanshan District science and Technology Industrial Park, Guangdong, Shenzhen Patentee address before: 518129, Wang Yuzhong, 3rd floor, Huadian Power Plant, Shenzhen, Longgang, Guangdong |
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| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20100928 Granted publication date: 20010905 |