CN201903780U - Light-emitting diode (LED) display screen power management system based on optical fiber and controller area network (CAN) bus - Google Patents
Light-emitting diode (LED) display screen power management system based on optical fiber and controller area network (CAN) bus Download PDFInfo
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- CN201903780U CN201903780U CN2010206335082U CN201020633508U CN201903780U CN 201903780 U CN201903780 U CN 201903780U CN 2010206335082 U CN2010206335082 U CN 2010206335082U CN 201020633508 U CN201020633508 U CN 201020633508U CN 201903780 U CN201903780 U CN 201903780U
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 56
- 230000005540 biological transmission Effects 0.000 claims description 24
- 238000004891 communication Methods 0.000 description 2
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The utility model provides a light-emitting diode (LED) display screen power management system based on an optical fiber and a controller area network (CAN) bus, which comprises a controller, an optical fiber transmitting board, an optical fiber receiving board near an LED display screen end and CAN nodes connected with the CAN bus, wherein a signal is transmitted between the optical fiber transmitting board and the optical fiber receiving board by the optical fiber; received data are transmitted to each CAN node by the optical fiber receiving board through the CAN bus; the data of the node are received by the CAN nodes; and a corresponding control signal is sent out to an LED display screen distribution box connected with the CAN nodes according to the data. By adopting the LED display screen power management system, parameters transmitted to the LED display screen end from the controller end not only are reliable but also have higher error correcting capability, and the remote operation is realized on an LED display screen.
Description
Technical field
The utility model relates to electronic technology field, relates in particular to a kind of LED display power-supply management system that adds the CAN bus based on optical fiber.
Background technology
At present, the user requires very high to the automaticity of LED display, not only require the LED display image effect good, and requires the electric power system of LED display can straighforward operation.
But during LED display work, its current transformation is bigger, therefore the magnetic field around the LED display is very strong, if think the electric power system of straighforward operation LED display, must guarantee that the controller end is very reliable to the mode that the LED display end passes a parameter, and will have stronger error correcting capability.
The utility model content
For this reason, technical problem to be solved in the utility model is: provide a kind of and add the LED display power-supply management system of CAN bus based on optical fiber, make the controller end not only reliable to the mode that the LED display end passes a parameter, and have stronger error correcting capability.
So, the utility model provides a kind of LED display power-supply management system that adds the CAN bus based on optical fiber, be used for the power distribution cabinet of LED display is carried out power management, this system comprises: the controller that is used for sending to LED display the power management control signal, the optical fiber transmission board that is connected with controller by serial ports or USB interface at the controller end, and near the optical fiber dash receiver of LED display end be connected the CAN node that is used to control each road power supply of LED display on the CAN bus, wherein, use optical fiber transmission signal between optical fiber transmission board and the optical fiber dash receiver, the optical fiber dash receiver sends the data that receive by the CAN bus to the CAN node of each, the CAN node receives this node data, and sends control signal corresponding according to these data and give connected LED display power distribution cabinet.
Wherein, described CAN node comprises: be used to receive on the CAD bus mutually should node data go forward side by side CAN bus driver that line level transforms, is connected with the CAN bus driver and is used for that the data that receive are carried out frame and judges and export the CAN bus controller of correct data and be used to and receive the data that the CAN bus controller is exported, and the power distribution cabinet of its connection is sent the microcontroller of control signal.
The CAN node also comprises: be used to be cascaded to the output interface of next CAN node, described microcontroller can send it back control signal on the CAN bus by described output interface by CAN bus controller, CAN bus driver successively.
Described controller is connected with the optical fiber transmission board by serial ports or USB interface.
Because it is reliable that optical fiber and CAN bus all have the transmission data, and the characteristics that antijamming capability is strong, so LED display power-supply management system that adds the CAN bus based on optical fiber described in the utility model, by the mode that adopts optical fiber to add the CAN bus instruction of controller end is sent to the CAN node, by the CAN node data that receive are carried out the power distribution cabinet that LED display is judged and correct control signal is sent to again to frame again, make the controller end not only reliable to the parameter that the LED display end transmits, and have stronger error correcting capability, realized straighforward operation to LED display.
Description of drawings
Fig. 1 is the described power-supply management system block diagram of the utility model embodiment;
Fig. 2 is a CAN node composition function block diagram shown in Figure 1.
Embodiment
Below, in conjunction with the accompanying drawings the utility model is described in detail.
As shown in Figure 1, present embodiment provides a kind of and has added CAN(Controller Area Networ, controller local area network based on optical fiber) the LED display power-supply management system of bus, be used for the power distribution cabinet of LED display is carried out power management.
This system comprises: the controller 11 that is used for sending to LED display the power management control signal, the optical fiber transmission board 12 that is connected with controller 11 at controller 11 ends, and near the optical fiber dash receiver 13 of LED display end be connected the CAN node 14 that is used to control each road power supply of LED display on the CAN bus, wherein, use optical fiber transmission signal between optical fiber transmission board 12 and the optical fiber dash receiver 13, optical fiber dash receiver 13 sends the data that receive by the CAN bus to the CAN node 14 of each, CAN node 14 receives this node data, and sends control signal corresponding according to these data and give connected LED display power distribution cabinet (not indicating among the figure).
Described controller 11 can be connected with optical fiber transmission board 12 by serial ports or USB interface.
Because optical fiber transmission signal, its antijamming capability is strong, and long transmission distance; CAN bus transfer signal, it exports distance, and transmission stability is strong.Therefore, the described LED display power-supply management system of present embodiment sends to the CAN node by the mode that adopts optical fiber to add the CAN bus with the instruction of controller end, by the CAN node data that receive are carried out the power distribution cabinet that LED display is judged and correct control signal is sent to again to frame again, make the controller end not only reliable, and have stronger error correcting capability to the parameter that the LED display end transmits.
For example, controller 11 sends the power requirement to the LED display power distribution cabinet, promptly require the whole energized of power distribution cabinet, perhaps require the whole deenergizations of power distribution cabinet, perhaps require power distribution cabinet middle part subchannel is carried out power management, so, after optical fiber transmission board 12 receives the control command of controller 11, this order is handled, and sent control command to optical fiber dash receiver 13 by optical fiber.Optical fiber transmission board 13 is near controllers 11, and it is indoor generally to be placed on Long-distance Control, so communicating by letter between optical fiber transmission board 12 and the controller 11 can be adopted the mode of serial ports or USB.Controller 11 generally is exactly a controlling computer.
After optical fiber dash receiver 13 receives the data that optical fiber transmission board 12 sends, send data to each CAN node 14 by the CAN bus.Whether each node is this node data according to data characteristic judgment data on the bus, if this node data then receives these data.After CAN node 14 receives this node data, send control signal corresponding according to these data and give connected LED display power distribution cabinet, power distribution cabinet respective branch power supply is controlled.If CAN node 14 judges that the data on the CAN bus are not this node datas, then do not accept, promptly do not do any processing.
Adopt the optical fiber communication mode between optical fiber transmission board 12 and the optical fiber dash receiver 13, because this communication mode transmitting range is far away, anti-jamming capacity is strong, and because vision signal also adopts Optical Fiber Transmission, therefore, the data that can utilize the remaining optical fiber of transmission vision signal to carry out the power supply relational system between controller 11 and LED display transmit.
As shown in Figure 2, CAN node 14 comprises: be used to receive on the CAD bus mutually should node data go forward side by side CAN bus driver 141 that line level transforms, is connected with CAN bus driver 141 and is used for that the data that receive are carried out frame and judges and export the CAN bus controller 142 of correct data and be used to receive the data that CAN bus controller 142 is exported, and the power distribution cabinet of its connection is sent the microcontroller 143 of control signal.Wherein, CAN bus driver 141 by accessing port 145 receive on the CAD buses mutually should node data.
Further, CAN node 14 also comprises: be used to be cascaded to the output interface of next CAN node, described microcontroller can send it back control signal on the CAN bus by described output interface by CAN bus controller, CAN bus driver successively.
For example, after CAN bus driver 141 receives the data that controller 11 sends by accessing port 145, these data are carried out the level conversion processing, and the data after will handling send to CAN bus controller 142, after 142 pairs of data that receive of CAN bus controller are carried out the frame judgement, correct data are sent to microcontroller 143 again, and microcontroller 143 sends the control signal to the LED display power distribution cabinet according to the data that receive.It can be controlled each road power supply of power distribution cabinet, thereby has realized the straighforward operation to LED display.
As seen, the described LED display power-supply management system that adds the CAN bus based on optical fiber of present embodiment, realized true-time operation to the LED display power distribution cabinet, when emergency situations occurring, for example certain part of LED display is short-circuited, the LED display image is made mistakes, in the time of need in time handling, just can handle timely emergency situations by operation control 11.Use the described LED display power-supply management system of present embodiment, also can realize control to the LED display power distribution cabinet working time, for example opening the LED display power distribution cabinet in the morning the time starts working LED display, turn-off the LED display power distribution cabinet when temperature is high at noon, stop the work of LED display etc.
In sum, because it is reliable that optical fiber and CAN bus all have the transmission data, and the characteristics that antijamming capability is strong, so described LED display power-supply management system that adds the CAN bus based on optical fiber of present embodiment, by the mode that adopts optical fiber to add the CAN bus instruction of controller end is sent to the CAN node, by the CAN node data that receive are carried out the power distribution cabinet that LED display is judged and correct control signal is sent to again to frame again, make the controller end not only reliable to the parameter that the LED display end transmits, and have stronger error correcting capability, realized straighforward operation to LED display.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (4)
1. LED display power-supply management system that adds the CAN bus based on optical fiber, be used for the power distribution cabinet of LED display is carried out power management, it is characterized in that, comprise: the controller that is used for sending the power management control signal to LED display, the optical fiber transmission board that is connected with controller at the controller end, and near the optical fiber dash receiver of LED display end be connected the CAN node that is used to control each road power supply of LED display on the CAN bus, wherein, use optical fiber transmission signal between optical fiber transmission board and the optical fiber dash receiver, the optical fiber dash receiver sends the data that receive by the CAN bus to the CAN node of each, the CAN node receives this node data, and sends control signal corresponding according to these data and give connected LED display power distribution cabinet.
2. LED display power-supply management system according to claim 1, it is characterized in that, described CAN node comprises: be used to receive on the CAD bus mutually should node data go forward side by side CAN bus driver that line level transforms, is connected with the CAN bus driver and is used for that the data that receive are carried out frame and judges and export the CAN bus controller of correct data and be used to and receive the data that the CAN bus controller is exported, and the power distribution cabinet of its connection is sent the microcontroller of control signal.
3. LED display power-supply management system according to claim 2, it is characterized in that, the CAN node also comprises: be used to be cascaded to the output interface of next CAN node, described microcontroller can send it back control signal on the CAN bus by described output interface by CAN bus controller, CAN bus driver successively.
4. LED display power-supply management system according to claim 1 is characterized in that, described controller is connected with the optical fiber transmission board by serial ports or USB interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206335082U CN201903780U (en) | 2010-11-30 | 2010-11-30 | Light-emitting diode (LED) display screen power management system based on optical fiber and controller area network (CAN) bus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206335082U CN201903780U (en) | 2010-11-30 | 2010-11-30 | Light-emitting diode (LED) display screen power management system based on optical fiber and controller area network (CAN) bus |
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| Publication Number | Publication Date |
|---|---|
| CN201903780U true CN201903780U (en) | 2011-07-20 |
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| CN2010206335082U Expired - Fee Related CN201903780U (en) | 2010-11-30 | 2010-11-30 | Light-emitting diode (LED) display screen power management system based on optical fiber and controller area network (CAN) bus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105262660A (en) * | 2015-11-19 | 2016-01-20 | 衡阳泰豪通信车辆有限公司 | Bus control device for communication command vehicle |
-
2010
- 2010-11-30 CN CN2010206335082U patent/CN201903780U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105262660A (en) * | 2015-11-19 | 2016-01-20 | 衡阳泰豪通信车辆有限公司 | Bus control device for communication command vehicle |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110720 Termination date: 20161130 |
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| CF01 | Termination of patent right due to non-payment of annual fee |