CN1953451A - Multiple protocol control machine for on-line monitoring of expressway - Google Patents
Multiple protocol control machine for on-line monitoring of expressway Download PDFInfo
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- CN1953451A CN1953451A CN 200610097860 CN200610097860A CN1953451A CN 1953451 A CN1953451 A CN 1953451A CN 200610097860 CN200610097860 CN 200610097860 CN 200610097860 A CN200610097860 A CN 200610097860A CN 1953451 A CN1953451 A CN 1953451A
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Abstract
The invention relates to a high-speed road network detection multi-protocol controller, formed by CPU, network module, and serial expandable module. Wherein, CPU and network module are communicated with ISA bus; CPU and serial expandable module are communicated via ISA bus; network module is connected to Ethernet; the serial expandable module is connected to analogue video matrix module, digit video matrix module, video keyboard and serial network. The invention can realize inter-connect and inter-control of traditional analogue closed TV detecting system and digit video system.
Description
One, technical field
The present invention is a kind of multi-protocols controller that is applicable to the highway networking monitoring, can compatible multiple analog video matrix, digital video matrix and supervisory keyboard, and network enabled is reported to the police and the multi-protocols controller of multiple networking mode.
Two, background technology
Highway is large-scale networked at present, and the monitor video networking is an inexorable trend.Because the freeway surveillance and control construction builds stage by stage, the video-frequency networking control technology owing to lack unified standard, can not realize interconnected, intercommunication and cross complaint.And the digital video technology fast development, interconnected, the intercommunication and the cross complaint problem of traditional simulation closed-circuit TV monitoring system and Digital Video System must solve.Existing highway networking monitoring product is confined to the networking monitoring based on a kind of brand.
Three, summary of the invention
The present invention has adopted and device-independent design philosophy, realizes interconnected, the intercommunication and the cross complaint of the analog or digital video decoding/encoding device of highway monitoring system different brands.Multiple protocol control machine for on-line monitoring of expressway is the module accessing multi-protocol controller of various device (analog video matrix, digital video matrix and video supervisory keyboard) by special use, the multi-protocols controller is by a kind of standard agreement transmission based on XML, transmission course adopts cryptographic algorithm, guarantees safety of data.The multi-protocols controller links to each other with serial communication by network, and for guaranteeing reliability of data transmission, network and serial communication backup each other.
Multiple protocol control machine for on-line monitoring of expressway of the present invention is made up of CPU module, mixed-media network modules mixed-media, serial ports expansion module, communicates by letter by isa bus between CPU module and the mixed-media network modules mixed-media, communicates by letter by isa bus between CPU module and the serial ports expansion module; Mixed-media network modules mixed-media is connected with Ethernet; The serial ports expansion module connects simulation video matrix module, digital video matrix module, video supervisory keyboard and serial ports network.
Mixed-media network modules mixed-media uses RTL8139 chip and peripheral network transforming circuit to form, and finishes the mutual conversion between networking monitoring standard agreement and the Ethernet.
The serial ports expansion module comprises 16C554 chip, MAX232 chip and MAX485 chip.The MAX232 chip is responsible for the RS232 conversion of signals, and the MAX485 chip is responsible for the RS485 conversion of signals.The serial ports expansion module is finished the access of various rs 232 serial interface signals, finishes the RS485 signal of standard and RS232 signal and networking monitoring standard agreement and changes mutually.
Multiple protocol control machine for on-line monitoring of expressway of the present invention has been realized interconnected, the intercommunication and the cross complaint of traditional simulation closed-circuit TV monitoring system and Digital Video System, has filled up the blank of prior art.The present invention is the module accessing multi-protocol controller of various device (analog video matrix, digital video matrix and video supervisory keyboard) by special use, the multi-protocols controller is by a kind of standard agreement transmission based on XML, transmission course adopts cryptographic algorithm, guarantees safety of data.The multi-protocols controller links to each other with serial communication by network, and for guaranteeing reliability of data transmission, network and serial communication backup each other.
Four, description of drawings
Fig. 1 is the multiple protocol control machine for on-line monitoring of expressway schematic diagram
Fig. 2 is a multiple protocol control machine for on-line monitoring of expressway serial port module schematic diagram
Fig. 3 is a multiple protocol control machine for on-line monitoring of expressway mixed-media network modules mixed-media schematic diagram
Fig. 4 is the task dispatch flow chart
Fig. 5 is that port sends process chart
Fig. 6 is that port receives process chart
Fig. 7 is multi-protocols controller network interconnection figure
Fig. 8 is the interconnected figure of multi-protocols controller serial ports
Fig. 9 is the tree-like connection layout of multi-protocols controller serial ports
Figure 10 is the belt connection layout of multi-protocols controller network
Figure 11 is multi-protocols controller network and serial ports mixing connection layout
Five, embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Embodiment: multiple protocol control machine for on-line monitoring of expressway, form by CPU module, mixed-media network modules mixed-media, serial ports expansion module, communicate by letter by isa bus between CPU module and the mixed-media network modules mixed-media, communicate by letter by isa bus between CPU module and the serial ports expansion module; Mixed-media network modules mixed-media is connected with Ethernet; The serial ports expansion module connects simulation video matrix module, digital video matrix module, video keyboard and serial ports network.
Mixed-media network modules mixed-media uses RTL8139 chip and peripheral network transforming circuit to form, and as shown in Figure 2, finishes the mutual conversion between networking monitoring standard agreement and the Ethernet.
The serial ports expansion module comprises 16C554 chip, MAX232 chip and MAX485 chip.The MAX232 chip is responsible for the RS232 conversion of signals, and the MAX485 chip is responsible for the RS485 conversion of signals.The serial ports expansion module is finished the access of various rs 232 serial interface signals, finishes the RS485 signal of standard and RS232 signal and networking monitoring standard agreement and changes mutually.
Task dispatch
Task dispatch is according to the system port configuration, moves corresponding keyboard or matrix program, program circuit, as shown in Figure 4.
Task dispatch is the read port configuration file at first, judges the port arrangement type, and type is keyboard or computer, then calls the KEYBOARD.EXE application program, and bundling port; Type is an Ethernet, then calls the NETWORK.EXE application program, and bundling port; Type is a matrix, then calls the MATRIX.EXE application program, and bundling port; Type is other multi-protocols controllers, then calls the COMBRIDGE.EXE application program, and bundling port.
The port handling process
The multiple protocol control machine for on-line monitoring of expressway port is divided into: two types of ports of serial ports and network.The multi-protocols controller uses the serial ports port to connect simulation video matrix, digital video matrix, video keyboard, serial ports network etc.; Use the network port to connect ethernet device.Port is handled main task and is finished device protocol and standard agreement conversion exactly.
1) port sends handling process, as shown in Figure 5.
Port sends and at first obtains the order that will send, and generates standard message according to command context; Again according to source address, destination address, serial ports connects table to be waited and calculates the port that passes through, the generation heading; Heading and message body are assembled into a complete message, and send message.
Handling process when 2) receiving, as shown in Figure 6.
Port receives the at first integrality of judgment data bag of flow process, when receiving a complete packet, judge whether the destination address in the heading is local address, if local address, then search port configuration list, packet is transmitted to corresponding ports handles; If not local address, then search serial ports connection table and get next device address, and packet is transmitted to network port processing.
The multiple protocol control machine for on-line monitoring of expressway internetwork connection mode:
In conjunction with the applied environment of multiple protocol control machine for on-line monitoring of expressway, provide 2 kinds of highway networking monitoring networking modes:
1) multiple protocol control machine for on-line monitoring of expressway is by network interconnection mode
Because adopt the ethernet network transmission, transfer of data is very convenient between the multi-protocols controller, can direct data communication between two multi-protocols controllers, the network transmission protocol: udp protocol.Structure such as Fig. 7 by the network connection.
The multi-protocols controller is connected with Ethernet by the Ethernet port, serial ports connects simulation video matrix, digital video matrix and video control serial ports keyboard etc., reserve a serial ports system configuration debugging usefulness, the IP keyboard and the number space video matrix that possess network function can directly be articulated on the network.
2) multiple protocol control machine for on-line monitoring of expressway is by the serial port mutual contact mode
The multi-protocols controller by the serial port mutual contact mode as shown in Figure 8.The multi-protocols controller is formed network by serial ports, and serial ports connects simulation video matrix, digital video matrix, video control serial ports keyboard or multi-protocols controller etc. by configuration, reserves a serial ports system configuration debugging and uses.
Multiple protocol control machine for on-line monitoring of expressway is the module accessing multi-protocol controller of various device (analog video matrix, digital video matrix and video supervisory keyboard) by special use, the multi-protocols controller is by a kind of standard agreement transmission based on XML, transmission course adopts cryptographic algorithm, guarantees safety of data.The multi-protocols controller links to each other with serial communication by network, and for guaranteeing reliability of data transmission, network and serial communication backup each other.
The multi-protocols controller adopts the embedded hardware platform, adopts real-time linux operating system, can connect 8～64 ancillary equipment by port, and port extension realizes by the integrated circuit board expansion.
Multiple protocol control machine for on-line monitoring of expressway has following three kinds of exemplary embodiment
1). multiple protocol control machine for on-line monitoring of expressway is by the tree-like connection of serial ports, as shown in Figure 9.
2) multiple protocol control machine for on-line monitoring of expressway goes in ring by network and connects, as shown in figure 10.
3) mixing is connected multiple protocol control machine for on-line monitoring of expressway with serial ports by network, as shown in figure 11.
Claims (3)
1, a kind of multiple protocol control machine for on-line monitoring of expressway, form by CPU module, mixed-media network modules mixed-media, serial ports expansion module, it is characterized in that: communicate by letter by isa bus between CPU module and the mixed-media network modules mixed-media, communicate by letter by isa bus between CPU module and the serial ports expansion module; Mixed-media network modules mixed-media is connected with Ethernet; The serial ports expansion module connects simulation video matrix module, digital video matrix module, video supervisory keyboard and serial ports network.
2, multiple protocol control machine for on-line monitoring of expressway according to claim 1, it is characterized in that: described mixed-media network modules mixed-media uses RTL8139 chip and peripheral network transforming circuit to form, and finishes the mutual conversion between networking monitoring standard agreement and the Ethernet.
3, multiple protocol control machine for on-line monitoring of expressway according to claim 1 is characterized in that: described serial ports expansion module comprises 16C554 chip, MAX232 chip and MAX485 chip; The MAX232 chip is responsible for the RS232 conversion of signals, and the MAX485 chip is responsible for the RS485 conversion of signals; The serial ports expansion module is finished the access of various rs 232 serial interface signals, finishes the RS485 signal of standard and RS232 signal and networking monitoring standard agreement and changes mutually.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100978607A CN100358328C (en) | 2006-11-16 | 2006-11-16 | Multiple protocol control machine for on-line monitoring of expressway |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2006100978607A CN100358328C (en) | 2006-11-16 | 2006-11-16 | Multiple protocol control machine for on-line monitoring of expressway |
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| CN1953451A true CN1953451A (en) | 2007-04-25 |
| CN100358328C CN100358328C (en) | 2007-12-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106453241A (en) * | 2016-08-26 | 2017-02-22 | 山东高速信息工程有限公司 | Protocol converter for unifying control of highway information boards |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2478180Y (en) * | 2001-01-10 | 2002-02-20 | 吴江 | Network on-line monitor |
| US20040255018A1 (en) * | 2002-10-04 | 2004-12-16 | Brian Taraci | Method and apparatus for providing universal web access functionality with port contention resolution |
| JP4262532B2 (en) * | 2003-06-20 | 2009-05-13 | 株式会社日立産機システム | Monitoring system control method |
| CN1477533A (en) * | 2003-07-01 | 2004-02-25 | 江苏省高速公路经营管理中心 | Network distributed express highway monitoring system based on network interconnected protocol |
| CN2694363Y (en) * | 2004-01-19 | 2005-04-20 | 南京大学 | Flushbonding family life test-control platform |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106453241A (en) * | 2016-08-26 | 2017-02-22 | 山东高速信息工程有限公司 | Protocol converter for unifying control of highway information boards |
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