CN101231509A - Built-in industrial control machine mainboard being compatible with Zigbee protocol - Google Patents
Built-in industrial control machine mainboard being compatible with Zigbee protocol Download PDFInfo
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- CN101231509A CN101231509A CNA2007100368390A CN200710036839A CN101231509A CN 101231509 A CN101231509 A CN 101231509A CN A2007100368390 A CNA2007100368390 A CN A2007100368390A CN 200710036839 A CN200710036839 A CN 200710036839A CN 101231509 A CN101231509 A CN 101231509A
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Abstract
An embedded mother board compatible with Zigbee protocol for industrial control computers is provided, which comprises a CPU module, a north bridge module and a south bridge module. The embedded mother board is characterized in that the mother board is provided thereon with a wireless access module compatible with the Zigbee protocol and connected with the south bridge module. The wireless gateway module based on the Zigbee protocol is integrated into the mother board of the industrial control computer, so as to avoid the damage due to the repeated access to the external wireless gateway and the inconvenience for carrying the computer, improve the reliability and stability in controlling the computer system, and meet the requirement for on-site supervision outdoors under bad conditions of strong vibration and strong acid/base.
Description
Technical field
The present invention relates to the embedded industrial control computer mainboard, the design and the exploitation of the built-in industrial control single board computer mainboard under the especially compatible Zigbee wireless protocol standard.
Background technology
The Zigbee wireless protocols is a kind of communication protocol standard based on IEEE 802.15.4, comprises Physical layer and two standards of media access control layer of being used for the low-speed wireless PAN (Personal Area Network), and working frequency range comprises 2.4G, and 868M/915M and 433M Hz etc. are multiple.At present 2.4G frequency ranges of using more, its channel data transmission rate can reach 250Kbits/s, support the starlike and multi-hop equity topologic network mode of single-hop, consumed power is minimum in present various communication protocols, be mainly used in fields such as low speed short-distance radio PAN (Personal Area Network), radio sensing network, wireless industrial monitoring, particularly in radio sensing network, have broad application prospects.Compare with other wireless communication protocol, this agreement has the support simple Devices, super low-power consumption, and data transmission is stable, the internet security height, the self-configuring networking can arbitrarily increase and decrease outstanding advantages such as network node.
In the modern industry, the on-the-spot different types of distributed sensing systems of a large amount of uses that need of many Industry Control, carry out field data collection and control, these systems are if adopt the words of mode of connection control, have difficult wiring, system cost height, power consumption is big, difficult in maintenance and problem such as loaded down with trivial details, therefore can only carry out on-site supervision by the form of radio sensing network under the situation mostly.Stability and reliability are most important for industrial control computer and wireless sensing network system.
Common wireless sensing network system comprises several sections such as network sensing node, base station, gateway and opertaing device.Radio network gateway based on the Zigbee agreement is independent of control computer, adopts modes such as network interface or USB interface to carry out data communication more with control computer and is connected, and needs plug repeatedly when radio network gateway uses, and needs to carry with control computer.For the on-site supervision under the rugged surroundings such as field, strong vibration, strong acid-base, this mode is easy to occur the data-interface loose contact, poor stability, and system reliability is low, and carries inconvenience, complex operation etc.For need be for the industrial control computer under the rugged surroundings, this working method obviously be difficult to satisfy actual requirement.
Summary of the invention
Technical matters to be solved by this invention just is, at the increasingly extensive use of wireless sensing network system in Industry Control, provide a kind of wireless access gateway that can compatible Zigbee agreement to be embedded in the method for industrial control computer mainboard, and solution inserts the problems of bringing such as mainboard electromagnetic interference (EMI) because of the high frequency radio network gateway, improve the stability and the reliability of computer system, make this wireless industry control single board computer performance to satisfy fully and be applied under the abominable industrial environment, to radio sensing network etc. based on the real-time monitoring of the wireless industrial control system of Zigbee agreement and the actual requirement of data processing.
The present technique invention solves the technical scheme that its technical matters adopted:
A kind of built-in industrial control machine mainboard of compatible Zigbee agreement, comprise CPU module, north bridge module, south bridge module, video output module, USB mouth, wired lan, audio frequency output module, memory modules, hard disc module, I/O PORT, it is characterized in that the radio access module that a compatible Zigbee agreement is set links to each other with described south bridge module.
More specifically, described radio access module is arranged at the lower right corner of mainboard, as much as possible away from other interfaces and module on the mainboard, and this module is carried out electromagnetic isolation handle.
More specifically, increase an antennal interface in the lower right corner of mainboard, this interface is as far as possible away from other Peripheral Interfaces, to avoid the electromagnetic interference (EMI) of high-frequency signal to other interfaces.
More specifically, described radio access module comprises data processing, wireless radiofrequency transmitting-receiving, power management module and communication serial port four module.
More specifically, data processing module comprises microprocessor, data and program Flash storer, four submodules of communication serial port and I/O mouth; The wireless radiofrequency transceiver module comprises radio-frequency (RF) transceiver and two submodules of antenna, and radio-frequency receiving-transmitting adopts the CC2420 chip; Power management module coordinates to guarantee stable power supply; The communication serial port module is arranged to the pci bus communication modes.
More specifically, the radio access module working method of described industrial control computer mainboard comprises:
A. in receiving course,, will receive in the data-carrier store of radio network gateway based on the on-site supervision information of the wireless industry control network of Zigbee consensus standard by less radio-frequency receiving chip CC2420;
B. the monitor data that receives is input in the data processor, carries out related data and handle;
C. the data of handling well are linked to each other with pci bus by communication serial port;
D. by the mainboard south bridge, enter data among the CPU;
E. process of transmitting is opposite with receiving course, and CPU sends to on-site wireless supervisory systems such as radio sensing network with data, control command or the written program handled well by the less radio-frequency gateway.
More specifically, the system software of control radio access module working method adopts specially based on the open operating system Tiny OS of IEEE 802.15.4 communication standard and C/C++ language as developing instrument, processing capacity, MANET mode and communication protocol stack to wireless module carry out program design, and have developed the configuration Control Software that matches.
More specifically, less radio-frequency access module communication protocol stack comprises physical layer protocol, data link layer medium Access Control (MAC) layer protocol, Routing Protocol, network topology agreement, transport layer protocol and the application layer protocol of compatible Zigbee agreement, the Physical layer of corresponding OSI network model, data link layer, network layer, transport layer, session layer, presentation layer and application layer.
More specifically, described industrial computer radio access module Data Receiving pattern job step is as follows:
A, system program and initialization of register make all programs and register be in original state;
B, system enter holding state, wait for next step order, and constantly detect interrupt request singal;
If the c system receives the wireless receiving interrupt request singal, then system enters the judgement of network system working frequency range, continues to wait for otherwise return waiting status;
D, according to received wireless interrupt request singal, the working frequency range of system is judged, determined the laggard line frequency section locking of the working frequency range of network, and will receive frequency range and be adjusted to corresponding working frequency range that system enters next step operation;
If the interrupt request that e receives is that the network routing failure is surveyed and interrupts, carry out whether detection working properly of network route system, after then system will transfer to the network routing forwarding and reply processing, withdraw from and interrupt returning, wait for again and interrupting; If not, then enter next step operation;
If f detects to data test and reception request interruption, then upgrade the network routing iinformation, and carry out the network path diagnosis, if not data test and reception request interruption, then withdraw from and interrupt returning wait;
G, judge whether local network node, when the path of detecting the interrupt request that sends is the local network node path, then detecting gateway system and whether be in the receive ready state, is not local network node if system detects the node of the request that sends, and then withdraws from and interrupts returning;
If h gateway receive ready, then radio network gateway promptly communicates with node that sends request or gateway and shakes hands beginning receiving radio data bag, and with data storage processing, if system fails receive ready, then return wait, till ready for receiving;
I, after all Data Receiving send successfully, system withdraws from interrupts returning, and returns waiting status again, enters next Data Receiving circulation; Fail if receive, then return the renewal route, restart inquiry and receive.
More specifically, described industrial computer radio access module data transmission modes job step is as follows:
A, network node carry out system initialization, make all registers and program playback in original state;
B, system enter waiting status, wait for next step order, and constantly detect interrupt request singal;
If when the c system detected the interrupt request of transmission control that computing machine sends or programming information data, system entered the route detecting operation, otherwise returns waiting status, continues to wait for;
D, detect by route, decision network working frequency range, and working frequency range determined that the back locks, and will receive frequency range and be adjusted to corresponding working frequency range, system enters next step operation;
E, by the network route diagnosis, if home network system, then the access path diagnostic operation is not a local network information if detect the interrupt request singal that is sent, and then withdraws from interruption, returns waiting status;
Near f, path are diagnosed out local network interdependent node, specified data sending node object, and carry out object lock and decide, if fail to lock successfully, then return path diagnosis continues to determine the sending node object;
G, send to determined node object and to receive interrupt request, and judge whether object has interrupt response and receive ready, if all are ready, then enter next step operation, if do not respond or fail ready, then return path diagnosis selects another to send object, till finding ready node object;
H, communicate and shake hands, packet is modulated into the radiofrequency signal of relevant work frequency range, packet is sent by radio frequency chip with ready node object;
If i sends successfully, then withdraw from interruption, and return waiting status, wait for that data send circulation next time, if fail to send successfully, then return path diagnosis is sought the next object that sends and is resend, till sending successfully.
The present invention thoroughly solved industrial computer commonly used can't with the radio transmission-receiving function problem of Zigbee consensus standard compatibility, to be integrated in the industrial control computer based on the radio network gateway module of this agreement, avoided carrying brought inconvenient and fragile because of the plug repeatedly of radio network gateway with computing machine, greatly improved the reliability and stability of computer system control, can satisfy actual industrial demand for the on-site supervision under the rugged surroundings such as field, strong vibration, strong acid-base.
Description of drawings
Fig. 1 is the built-in industrial control machine mainboard module frame chart of the compatible Zigbee consensus standard of the present invention;
Fig. 2 among the present invention based on the radio access module hardware synoptic diagram of Zigbee consensus standard;
Fig. 3 is radio access module Data Receiving pattern workflow diagram among the present invention;
Fig. 4 is radio access module data transmission modes workflow diagram among the present invention;
Fig. 5 is the workflow schematic diagram of radio access module among the present invention;
Embodiment
Now according to accompanying drawing, the present invention will be further described:
The concrete configuration that a kind of embedded main board of industrial control computer of compatible Zigbee agreement designs with reference to Fig. 1:
Bus type: 5.25 " single plate structures
Processor: Intel Pentium 4 Processor super low-power consumption CPU
North bridge: VIA P4M890/P4M900
South bridge: VIA VT8237A/VT8237S
Installed System Memory: a 200-pin DDR266 internal memory, the maximum 1GB RAM that supports
The PNP BIOS of the new kernel of BIOS:AMI.
The integrated display card of chipset: the dynamic display memory of supporting the two demonstrations of CRT+LVDS, the maximum 64MB of sharing
Plate carries the LAN:10M/100M ethernet controller
Plate carries sound card: AC ' 97 audio frequency, Audio-Out, Mic-IN, Line-IN.
The IDE controller: a 40Pin ATA-100 passage, support 2 EIDE equipment
I/O interface: eight USB2.0 interfaces, parallel port, six serial ports (one of them supports 422/485), a PS/2 keyboard/mouse two-in-one interfaces, a 115Kbps IRDA interface
Solid-state disk interface: the electric board of supporting Compact flash interface
The input of numeral I/O:4 way word, the output of 4 way words
WatchDog Timer: 1-255 level (branch/second is able to programme) house dog clock
Expansion bus: a 124-Pin Mini-PCI expansion bus, three Standard PC I slot expansions
Power supply: standard 20Pin ATX supply socket and 4Pin AT power connection, BIOS discerns power supply automatically
Radio access module: based on the wireless radio frequency modules of the embedded compatible Zigbee agreement of CC2420 chip
Fig. 2 is a radio access module hardware principle synoptic diagram, comprise data processing, wireless radiofrequency transmitting-receiving, communication serial port, power management four module, data processing module comprises microprocessor, data and program Flash storer, four submodules of communication serial port and I/O mouth; The wireless radiofrequency transceiver module comprises radio-frequency (RF) transceiver and two submodules of antenna, and radio-frequency receiving-transmitting adopts the CC2420 chip; Power management module coordinates to guarantee stable power supply; The communication serial port module is arranged to the pci bus communication modes.
Fig. 3 is a radio access module Data Receiving pattern workflow diagram, and its job step is as follows:
A, system program and initialization of register make all programs and register be in original state;
B, system enter holding state, wait for next step order, and constantly detect interrupt request singal;
If the c system receives the wireless receiving interrupt request singal, then system enters the judgement of network system working frequency range, continues to wait for otherwise return waiting status;
D, according to received wireless interrupt request singal, the working frequency range of system is judged, determined the laggard line frequency section locking of the working frequency range of network, and will receive frequency range and be adjusted to corresponding working frequency range that system enters next step operation;
If the interrupt request that e receives is that the network routing failure is surveyed and interrupts, carry out whether detection working properly of network route system, after then system will transfer to the network routing forwarding and reply processing, withdraw from and interrupt returning, wait for again and interrupting; If not, then enter next step operation;
If f detects to data test and reception request interruption, then upgrade the network routing iinformation, and carry out the network path diagnosis, if not data test and reception request interruption, then withdraw from and interrupt returning wait;
G, judge whether local network node, when the path of detecting the interrupt request that sends is the local network node path, then detecting gateway system and whether be in the receive ready state, is not local network node if system detects the node of the request that sends, and then withdraws from and interrupts returning;
If h gateway receive ready, then radio network gateway promptly communicates with node that sends request or gateway and shakes hands beginning receiving radio data bag, and with data storage processing, if system fails receive ready, then return wait, till ready for receiving;
I, after all Data Receiving send successfully, system withdraws from interrupts returning, and returns waiting status again, enters next Data Receiving circulation; Fail if receive, then return the renewal route, restart inquiry and receive.
Fig. 4 is a radio access module data transmission modes workflow diagram, and its job step is as follows:
A, network node carry out system initialization, make all registers and program playback in original state;
B, system enter waiting status, wait for next step order, and constantly detect interrupt request singal;
If when the c system detected the interrupt request of transmission control that computing machine sends or programming information data, system entered the route detecting operation, otherwise returns waiting status, continues to wait for;
D, detect by route, decision network working frequency range, and working frequency range determined that the back locks, and will receive frequency range and be adjusted to corresponding working frequency range, system enters next step operation;
E, by the network route diagnosis, if home network system, then the access path diagnostic operation is not a local network information if detect the interrupt request singal that is sent, and then withdraws from interruption, returns waiting status;
Near f, path are diagnosed out local network interdependent node, specified data sending node object, and carry out object lock and decide, if fail to lock successfully, then return path diagnosis continues to determine the sending node object;
G, send to determined node object and to receive interrupt request, and judge whether object has interrupt response and receive ready, if all are ready, then enter next step operation, if do not respond or fail ready, then return path diagnosis selects another to send object, till finding ready node object;
H, communicate and shake hands, packet is modulated into the radiofrequency signal of relevant work frequency range, packet is sent by radio frequency chip with ready node object;
If i sends successfully, then withdraw from interruption, and return waiting status, wait for that data send circulation next time, if fail to send successfully, then return path diagnosis is sought the next object that sends and is resend, till sending successfully.
Fig. 5 is the flow process that industrial control computer mainboard receives data and handles: antenna captures the data that wireless network sends, commentaries on classics is received by the radio-frequency receiving-transmitting submodule in the radio access module and handles, handle via data processing module, import south bridge into by pci bus, import north bridge into via the V-link bus then, give CPU and handle.
Claims (10)
1. the built-in industrial control machine mainboard of a compatible Zigbee agreement, comprise CPU module, north bridge module, south bridge module, video output module, USB mouth, wired lan, audio frequency output module, memory modules, hard disc module, I/O PORT, it is characterized in that the radio access module that a compatible Zigbee agreement is set links to each other with described south bridge module.
2. industrial control computer mainboard as claimed in claim 1 is characterized in that described radio access module is arranged at the lower right corner of mainboard, as much as possible away from other interfaces and module on the mainboard, and this module is carried out electromagnetic isolation handle.
3. industrial control computer mainboard as claimed in claim 2 is characterized in that, increases an antennal interface in the lower right corner of mainboard, and this interface is as far as possible away from other Peripheral Interfaces, to avoid the electromagnetic interference (EMI) of high-frequency signal to other interfaces.
4. industrial control computer mainboard as claimed in claim 1 is characterized in that, described radio access module comprises data processing, wireless radiofrequency transmitting-receiving, power management module and communication serial port four module.
5. industrial control computer mainboard as claimed in claim 4 is characterized in that data processing module comprises microprocessor, data and program Flash storer, four submodules of communication serial port and I/O mouth; The wireless radiofrequency transceiver module comprises radio-frequency (RF) transceiver and two submodules of antenna, and radio-frequency receiving-transmitting adopts the CC2420 chip; Power management module coordinates to guarantee stable power supply; The communication serial port module is arranged to the pci bus communication modes.
6. industrial control computer mainboard as claimed in claim 1 is characterized in that, the radio access module working method of described industrial control computer mainboard comprises:
A. in receiving course,, will receive in the data-carrier store of radio network gateway based on the on-site supervision information of the wireless industry control network of Zigbee consensus standard by less radio-frequency receiving chip CC2420;
B. the monitor data that receives is input in the data processor, carries out related data and handle;
C. the data of handling well are linked to each other with pci bus by communication serial port;
D. by the mainboard south bridge, enter data among the CPU;
E. process of transmitting is opposite with receiving course, and CPU sends to on-site wireless supervisory systems such as radio sensing network with data, control command or the written program handled well by the less radio-frequency gateway.
7. industrial control computer mainboard as claimed in claim 6, it is characterized in that, the system of control radio access module working method adopts specially based on the open operating system Tiny OS of IEEE 802.15.4 communication standard and C/C++ language as developing instrument, processing capacity, MANET mode and communication protocol stack to wireless module carry out program design, and the configuration Control Software of exploitation.
8. industrial control computer mainboard as claimed in claim 7, it is characterized in that, less radio-frequency access module communication protocol stack comprises physical layer protocol, data link layer medium Access Control (MAC) layer protocol, Routing Protocol, network topology agreement, transport layer protocol and the application layer protocol of compatible Zigbee agreement, the Physical layer of corresponding OSI network model, data link layer, network layer, transport layer, session layer, presentation layer and application layer.
9. industrial control computer mainboard as claimed in claim 7 is characterized in that, described industrial computer radio access module Data Receiving pattern job step is as follows:
A, system program and initialization of register make all programs and register be in original state;
B, system enter holding state, wait for next step order, and constantly detect interrupt request singal;
If the c system receives the wireless receiving interrupt request singal, then system enters the judgement of network system working frequency range, continues to wait for otherwise return waiting status;
D, according to received wireless interrupt request singal, the working frequency range of system is judged, determined the laggard line frequency section locking of the working frequency range of network, and will receive frequency range and be adjusted to corresponding working frequency range that system enters next step operation;
If the interrupt request that e receives is that the network routing failure is surveyed and interrupts, carry out whether detection working properly of network route system, after then system will transfer to the network routing forwarding and reply processing, withdraw from and interrupt returning, wait for again and interrupting; If not, then enter next step operation;
If f detects to data test and reception request interruption, then upgrade the network routing iinformation, and carry out the network path diagnosis, if not data test and reception request interruption, then withdraw from and interrupt returning wait;
G, judge whether local network node, when the path of detecting the interrupt request that sends is the local network node path, then detecting gateway system and whether be in the receive ready state, is not local network node if system detects the node of the request that sends, and then withdraws from and interrupts returning;
If h gateway receive ready, then radio network gateway promptly communicates with node that sends request or gateway and shakes hands beginning receiving radio data bag, and with data storage processing, if system fails receive ready, then return wait, till ready for receiving;
I, after all Data Receiving send successfully, system withdraws from interrupts returning, and returns waiting status again, enters next Data Receiving circulation; Fail if receive, then return the renewal route, restart inquiry and receive.
10. industrial control computer mainboard as claimed in claim 7 is characterized in that, described industrial computer radio access module data transmission modes job step is as follows:
A, network node carry out system initialization, make all registers and program playback in original state;
B, system enter waiting status, wait for next step order, and constantly detect interrupt request singal;
If when the c system detected the interrupt request of transmission control that computing machine sends or programming information data, system entered the route detecting operation, otherwise returns waiting status, continues to wait for;
D, detect by route, decision network working frequency range, and working frequency range determined that the back locks, and will receive frequency range and be adjusted to corresponding working frequency range, system enters next step operation;
E, by the network route diagnosis, if home network system, then the access path diagnostic operation is not a local network information if detect the interrupt request singal that is sent, and then withdraws from interruption, returns waiting status;
Near f, path are diagnosed out local network interdependent node, specified data sending node object, and carry out object lock and decide, if fail to lock successfully, then return path diagnosis continues to determine the sending node object;
G, send to determined node object and to receive interrupt request, and judge whether object has interrupt response and receive ready, if all are ready, then enter next step operation, if do not respond or fail ready, then return path diagnosis selects another to send object, till finding ready node object;
H, communicate and shake hands, packet is modulated into the radiofrequency signal of relevant work frequency range, packet is sent by radio frequency chip with ready node object;
If i sends successfully, then withdraw from interruption, and return waiting status, wait for that data send circulation next time, if fail to send successfully, then return path diagnosis is sought the next object that sends and is resend, till sending successfully.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CNA2007100368390A CN101231509A (en) | 2007-01-25 | 2007-01-25 | Built-in industrial control machine mainboard being compatible with Zigbee protocol |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2007100368390A CN101231509A (en) | 2007-01-25 | 2007-01-25 | Built-in industrial control machine mainboard being compatible with Zigbee protocol |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102111911A (en) * | 2011-03-08 | 2011-06-29 | 南京拓诺传感网络科技有限公司 | Dual-core and multi-terminal interface wireless sensor network base station device |
| CN104317367A (en) * | 2014-11-24 | 2015-01-28 | 天津市中环电子计算机有限公司 | Reinforced military communication portable machine |
| CN105843199A (en) * | 2009-10-02 | 2016-08-10 | 通用电气公司 | Control systems and methods of providing the same |
-
2007
- 2007-01-25 CN CNA2007100368390A patent/CN101231509A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105843199A (en) * | 2009-10-02 | 2016-08-10 | 通用电气公司 | Control systems and methods of providing the same |
| CN102111911A (en) * | 2011-03-08 | 2011-06-29 | 南京拓诺传感网络科技有限公司 | Dual-core and multi-terminal interface wireless sensor network base station device |
| CN104317367A (en) * | 2014-11-24 | 2015-01-28 | 天津市中环电子计算机有限公司 | Reinforced military communication portable machine |
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