CN102056364A - CAN bus-based sequenced strobe light system - Google Patents
CAN bus-based sequenced strobe light system Download PDFInfo
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- CN102056364A CN102056364A CN2009101883913A CN200910188391A CN102056364A CN 102056364 A CN102056364 A CN 102056364A CN 2009101883913 A CN2009101883913 A CN 2009101883913A CN 200910188391 A CN200910188391 A CN 200910188391A CN 102056364 A CN102056364 A CN 102056364A
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Abstract
The invention discloses a controller area network (CAN) bus-based sequenced strobe light system, and belongs to the technical field of sequenced strobe light systems. The sequenced strobe light system comprises a controller (1), a status indication and address encoder (2), sequenced strobe lights (3), a communication line (4), a signal generator (5), a booster circuit (6), an RS232 bus interface circuit (7), a Can bus interface circuit (8) and a voltage controller power source (9). Compared with the prior art, the CAN bus-based sequenced strobe light system has the advantages that: through centralized control, all strobe light parameters and running conditions can be set and managed in a centralized way; by adopting field remote control of a CAN bus, each field strobe light can be reliably controlled remotely, and can independently report the running condition to a main control cabinet; and the system has high protection capacity and high stability.
Description
Technical field
The invention belongs to the Sequenced Flashing Light System technical field, belong to a kind of Sequenced Flashing Light System in particular based on the CAN bus.
Background technology
The navigational lighting aid system on airport can be under the low visibility condition, for the landing of aircraft provides safety, and guidance by sight reliably.Airport visual approach light to guide article equipment is the flash unit that is used for approach light sys tem, as visual facility, is used to show airfield runway center extended line by the flash of light of control photoflash lamp.High brightness light is done flash of light clocklike, on holding at a distance approach path, runway do not shift to the runway port rapidly, can be under the poor visibility condition, and when having more mixed and disorderly light to disturb in the nearer area of runway, airport visual approach light to guide article equipment can be given the dynamic reminding of a highly significant of pilot, thereby vector aircraft finds the airport center line, smoothly approach.
Airport visual approach light to guide article equipment also requires equipment to search rapidly, to get rid of abnormal conditions and fault except reliability and stability being required the suitable strictness, and can reflect the state of each photoflash lamp at the photoflash lamp main control room in real time.Traditional airport visual approach light to guide article equipment adopts analog signal transmission control or 485 controls.
Analog signal transmission control is sent the pulse train signal by main machinery control room, and each photoflash lamp node is carried out different light indications by the parsing of pulse signals, and sends the transponder pulse signal by an independent feedback line to master controller.Adopt this control mode, find to have two drawbacks in practice: at first, if the pps pulse per second signal that main control room sends causes photoflash lamp to fail normally to receive because of being interfered, it will continue transmission next time, and can not handle this unusual condition; Secondly,, make master controller can't correctly judge the accurate situation of photoflash lamp,, again anti-lightning strike problem is incorporated in the system if feedback line is built on stilts because feedback line is subjected to the interference of power line.
485 traditional controls, its poor anti jamming capability does not have stronger stable control ability, uses software fault-tolerant not have stronger hardware fault-tolerant mechanism for correcting errors fully, can only use the master-slave mode communication mode, and communication efficiency is lower.
Summary of the invention
The present invention has proposed a kind of Sequenced Flashing Light System based on the CAN bus in order to solve above technical problem.
A kind of Sequenced Flashing Light System of the present invention based on the CAN bus comprise controller (1) but, geocoding and positioning indicator, sequence flash lights, communication line, signal generator, booster circuit, RS232 bus interface circuit, CAN bus interface circuit voltage controller power source, spacer assembly, power amplifier and checkout gear; Wherein: described controller links to each other with geocoding and positioning indicator; Described controller links to each other with the sequence flash lights forward with power amplifier by spacer assembly; Described sequence flash lights oppositely links to each other with controller with spacer assembly by checkout gear; Described controller links to each other with signal generator; Described controller links to each other with RS232 bus interface circuit, CAN bus interface circuit respectively; But described voltage controller power source links to each other with controller; But described voltage controller power source links to each other with signal generator; But described voltage controller power source links to each other with booster circuit; Described signal generator links to each other with booster circuit; Described booster circuit links to each other with sequence flash lights.Described controller is a single-chip microcomputer; But the range of regulation of described voltage controller power source is between 80V-220V; Described spacer assembly is the A/D spacer assembly; Described signal generator is the PWM square-wave generator; Described geocoding and positioning indicator comprise memory and LCD two parts.
Described controller is a single-chip microcomputer; But the range of regulation of described voltage controller power source is between 80V-220V; Described spacer assembly is the A/D spacer assembly; Described signal generator is the PWM square-wave generator; Described geocoding and positioning indicator comprise memory and LCD two parts.
Purpose of the present invention is intended to solve the shortcoming of traditional analog control and the total line traffic control of RS485, and makes Sequenced Flashing Light System obtain synchronous, unified, accurate and stable far distance controlled (CAN bus direct communication distance can be reached 10KM/5Kbps farthest).
The Sequenced Flashing Light System based on the CAN bus of the present invention's design comprises main control cabinet and integrated sequence flash lights, main control cabinet is the core of Sequenced Flashing Light System, the inside comprises controller, but geocoding and positioning indicator, communication line, signal generator, booster circuit, RS232 bus interface circuit, CAN bus interface circuit voltage controller power source, spacer assembly, power amplifier and checkout gear; Its function comprises that outside cell controller and light fixture provide power supply, provides lighting level signal and flicker frequency to the outfield cell controller, monitors the running status and the remote monitoring of outfield cell controller and light fixture.Main control cabinet is as the master control node of CAN, make on the CAN bus of integrated light fixture from node carry out timeticks synchronously, and send the control information of lighting level adjustment and flicker frequency.
Sequence flash lights is the execution unit of Sequenced Flashing Light System, and they receive lighting level and the synchronic command that comes from main control cabinet, carries out the control of lighting level adjustment and flicker frequency.When main control cabinet sent a control command, it is one subsynchronous that the photoflash lamp in the system is finished, make like this each photoflash lamp in the system can carry out perfect synchronously and unified control.The sequenced flashing light fixture as CAN from node, initiatively send the running status of this section point light fixture to the CAN of main control cabinet master control node.Make that the running status of each photoflash lamp obtains real-time monitoring in the system.
The present invention compares with prior art and has the following advantages: centralized control makes all Flashing Light Parameters and ruuning situation can access centralized setting and management; Adopt the open-air Long-distance Control of CAN bus, make each open-air photoflash lamp can both obtain reliable at a distance control, and can independently report running status to main control cabinet; The protective capacities of system is strong, good stability.
Description of drawings
Accompanying drawing 1 is a structural representation of the present invention.
Embodiment
Shown in Figure 1 is the structural representation of a kind of Sequenced Flashing Light System based on the CAN bus of the present invention, but described Sequenced Flashing Light System comprises controller 1, geocoding and positioning indicator 2, sequence flash lights 3, communication line 4, signal generator 5, booster circuit 6, RS232 bus interface circuit 7, CAN bus interface circuit 8 voltage controller power sources 9, spacer assembly 10, power amplifier 11 and checkout gear 12; Described controller 1 links to each other with geocoding and positioning indicator 2; Described controller 1 links to each other with sequence flash lights 3 forwards with power amplifier 11 by spacer assembly 10; Described sequence flash lights 3 oppositely links to each other with controller 1 with spacer assembly 10 by checkout gear 12; Described controller 1 links to each other with signal generator 5; Described controller 1 links to each other with RS232 bus interface circuit 7, CAN bus interface circuit 8 respectively; But described voltage controller power source 9 links to each other with controller 1; But described voltage controller power source 9 links to each other with signal generator 5; But described voltage controller power source 9 links to each other with booster circuit 6; Described signal generator 5 links to each other with booster circuit 6; Described booster circuit 6 links to each other with sequence flash lights 3.
Described controller 1 is a single-chip microcomputer; But the range of regulation of described voltage controller power source 9 is between 80V-220V; Described spacer assembly 10 is A/D spacer assemblys; Described signal generator 5 is PWM square-wave generators; Described geocoding and positioning indicator 2 comprise memory and LCD two parts.
The Sequenced Flashing Light System based on the CAN bus of the present invention's design comprises main control cabinet and integrated sequence flash lights, main control cabinet is the core of Sequenced Flashing Light System, but the inside comprises controller 1, geocoding and positioning indicator 2, communication line 4, signal generator 5, booster circuit 6, RS232 bus interface circuit 7, CAN bus interface circuit 8 voltage controller power sources 9, spacer assembly 10, power amplifier 11 and checkout gear 12; Its function comprises that outside cell controller and light fixture provide power supply, provides lighting level signal and flicker frequency to the outfield cell controller, monitors the running status and the remote monitoring of outfield cell controller and light fixture.Main control cabinet is as the master control node of CAN, make on the CAN bus of integrated light fixture from node carry out timeticks synchronously, and send the control information of lighting level adjustment and flicker frequency.Main control cabinet provides power supply for sequence flash lights 3, and as the core control section based on the Sequenced Flashing Light System of CAN bus, it has been finished all sequence flash lights 3 in the same system are carried out synchronous, unified, accurate and stable far distance controlled.
Sequence flash lights 3 is based on the execution unit of the Sequenced Flashing Light System of CAN bus, and they receive lighting level and the synchronic command that comes from main control cabinet, carries out the control of lighting level adjustment and flicker frequency.When main control cabinet sent a control command, it is one subsynchronous that the sequence flash lights 3 in the system is finished, make like this each sequence flash lights 3 in the system can carry out perfect synchronously and unified control.The sequenced flashing light fixture as CAN from node, initiatively send the running status of this section point light fixture to the CAN of main control cabinet master control node, make that the running status of each sequence flash lights 3 obtains real-time monitoring in the system.
The invention provides a kind of Sequenced Flashing Light System, comprise controlled photoflash lamp, power cable and the communications cable in a plurality of systems of main control cabinet based on the CAN bus.
On the photoflash lamp CAN monitoring main circuit board, the toggle switch of being furnished with the ID setting can be provided with the quantity of sequence flash lights 3 in the system and the ID of current sequence flash lights 3 nodes, the sequence flash lights 3 that can not have ID to repeat in the same system network, when main control cabinet is that the host node of CAN is when initiating that order is set, sequence flash lights 3 in all systems (being that CAN is from the intranodal timer) resets simultaneously, finishes the clock synchronization process one time.Sequence flash lights 3 is arranged in same CAN network, and unified operation is finished in the order that main control cabinet is assigned, and the transmission characteristic of CAN bus has guaranteed that message accurately and reliably.
Sequence flash lights 3 is provided with the content of order according to host node, carry out the adjustment of lighting level and flicker frequency, central processing unit in the photoflash lamp carries out independence control to photoflash lamp and adjusts, and after flicker once, it is the CAN host node that transmit status message returns to main control cabinet, central processing unit in the main control cabinet processes demonstration to each sequence flash lights 3 (being the operating state and the signal intelligence of each CAN from node), and is presented in real time on the LCDs of the geocoding of main control cabinet and positioning indicator 2 and makes that the operator can be quick, understand the operating state and the signal intelligence of all sequence flash lights 3 in the whole C AN bus flashing light system easily.
In the Sequenced Flashing Light System based on the CAN bus of the present invention, the CAN bus is in order to guarantee the reliable real time communication of long distance in the open air, its traffic rate need be adjusted and be provided with, we adopt the traffic rate of 10Kbps generally speaking, its theoretical effective communication distance is 6.3km to the maximum, all can meet the demands generally speaking, at master controller is that CAN bus host node place can dynamically adjust traffic rate, if communication distance needs lengthening, the longest assurance guarantees 10km with interior reliable communication at the traffic rate of 5Kbps, and above communication distance is under the situation that does not add any repeater.In the Sequenced Flashing Light System based on the CAN bus of the present invention, because in the long-term work lowered in field environment, just strict more to its reliable and stable requirement, some safeguard procedures below system adds in design:
Overcurrent protection: when short circuit or other overcurrent conditions appearred in external loop, the short-circuiting device meeting automatic disconnection control cubicle power supply in the main control cabinet was in order to avoid result in greater loss.
Loss protecting: unexpected dead electricity when the control cubicle operate as normal, control cubicle will be preserved legacy data automatically.Treat service restoration, controller is directly worked under former lighting level, need not to restart and define the level.
Protection against rodents protection: the control cubicle cabinet has the protection against rodents design, prevents from that toy from entering in the cabinet to cause damage.
Moisture protection: circuit board is all handled through damp proof insulation, avoids moisture to invade corrosion.
The above; only be the preferable embodiment of the present invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, all should be encompassed within protection scope of the present invention.
Claims (6)
1. Sequenced Flashing Light System based on the CAN bus is characterized in that: described Sequenced Flashing Light System comprises controller (1), geocoding and positioning indicator (2), sequence flash lights (3), communication line (4), signal generator (5), booster circuit (6), RS232 bus interface circuit (7), CAN bus interface circuit (8) but voltage controller power source (9), spacer assembly (10), power amplifier (11) and checkout gear (12); Wherein:
Described controller (1) links to each other with geocoding and positioning indicator (2);
Described controller (1) links to each other with sequence flash lights (3) forward with power amplifier (11) by spacer assembly (10);
Described sequence flash lights (3) oppositely links to each other with controller (1) with spacer assembly (10) by checkout gear (12);
Described controller (1) links to each other with signal generator (5);
Described controller (1) links to each other with RS232 bus interface circuit (7), CAN bus interface circuit (8) respectively;
But described voltage controller power source (9) links to each other with controller (1);
But described voltage controller power source (9) links to each other with signal generator (5);
But described voltage controller power source (9) links to each other with booster circuit (6);
Described signal generator (5) links to each other with booster circuit (6);
Described booster circuit (6) links to each other with sequence flash lights (3).
2. the Sequenced Flashing Light System based on the CAN bus according to claim 1 is characterized in that: described controller (1) is a single-chip microcomputer.
3. the Sequenced Flashing Light System based on the CAN bus according to claim 1 is characterized in that: but the range of regulation of described voltage controller power source (9) is between 80V-220V.
4. the Sequenced Flashing Light System based on the CAN bus according to claim 1 is characterized in that: described spacer assembly (10) is the A/D spacer assembly.
5. the Sequenced Flashing Light System based on the CAN bus according to claim 1 is characterized in that: described signal generator (5) is the PWM square-wave generator.
6. the Sequenced Flashing Light System based on the CAN bus according to claim 1 is characterized in that: described geocoding and positioning indicator (2) comprise memory and LCD two parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101883913A CN102056364A (en) | 2009-11-03 | 2009-11-03 | CAN bus-based sequenced strobe light system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101883913A CN102056364A (en) | 2009-11-03 | 2009-11-03 | CAN bus-based sequenced strobe light system |
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| Publication Number | Publication Date |
|---|---|
| CN102056364A true CN102056364A (en) | 2011-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101883913A Pending CN102056364A (en) | 2009-11-03 | 2009-11-03 | CAN bus-based sequenced strobe light system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103491678A (en) * | 2013-09-10 | 2014-01-01 | 湖北华航光电股份有限公司 | Control system of sequence flashing lamps and master control device thereof |
| CN103491677A (en) * | 2013-09-10 | 2014-01-01 | 湖北华航光电股份有限公司 | Control system of sequence flashing lamps and sub control devices thereof |
-
2009
- 2009-11-03 CN CN2009101883913A patent/CN102056364A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103491678A (en) * | 2013-09-10 | 2014-01-01 | 湖北华航光电股份有限公司 | Control system of sequence flashing lamps and master control device thereof |
| CN103491677A (en) * | 2013-09-10 | 2014-01-01 | 湖北华航光电股份有限公司 | Control system of sequence flashing lamps and sub control devices thereof |
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Application publication date: 20110511 |