CN201341253Y - Control device and automatic fault reporting system - Google Patents
Control device and automatic fault reporting system Download PDFInfo
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- CN201341253Y CN201341253Y CNU200820123845XU CN200820123845U CN201341253Y CN 201341253 Y CN201341253 Y CN 201341253Y CN U200820123845X U CNU200820123845X U CN U200820123845XU CN 200820123845 U CN200820123845 U CN 200820123845U CN 201341253 Y CN201341253 Y CN 201341253Y
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Abstract
The utility model discloses a control device, comprising a host decoding module, a slave decoding module, a host coding module, a slave coding module, a display control module and a local clock module used for providing clock signals for the modules.
Description
Technical field
The utility model relates to LED control field, in particular a kind of control device of LED control system and use the system that this device carries out Trouble Report.
Background technology
Along with being extensive use of of LED, adopting LED emission three primary colors to be made in a large number, and be used for message panel or billboard in sports ground, building, the railway station with the LED display unit, the lamp decoration that form image according to pixel.
LED display unit and lamp decoration mainly comprise control circuit and some LED.In LED control field, mainly exist the scheme that 3 kinds of monobus parallel transmission structure, multi-thread (as two lines, four lines) serial transmission structure and single serial transmission structures etc. are used for cascade control signal transmission in the system.
Be illustrated in figure 1 as the single serial transmission plan schematic diagram of prior art, adopt single holding wire to connect shown in the figure in the system between each light fixture, the control signal of light fixture is sent by the controller of left end, and the light fixture 1 of transmission process successively is to light fixture n from left to right.This cascade system will adopt single signal wire transmits data, with respect to monobus parallel transmission structure and multi-thread serial transmission structure, under the prerequisite that has guaranteed system's cascade performance, greatly reduce the cost that system complexity and system realize.In the middle of each grade light fixture, control device is finished the input and output of cascade data, and generates display control signal ctrl and control LED chip for driving 1～m, by chip for driving by drive R, G, the demonstration of B lamp point.Yet, when certain the one-level light fixture in the middle of the cascade chain of whole system hinder for some reason disconnect or cascade chain in the LED chip for driving controlled of certain tandem node device and LED lamp point when fault occurring, whole cascade chain will be at a standstill, if manually carry out fault detect, time-consuming, press for a kind of Trouble Report generation system that can judge and the position of fault point is write down fault type, so that carry out accident analysis and eliminating.
Prior art is not is not also researched and developed such failure reporting system.
Therefore, there is defective in prior art, needs to improve.
The utility model content
The utility model provides a kind of control device.
The utility model also provides a kind of Trouble Report generation system that can judge fault type automatically and the position of fault point is write down.
The utility model provides a kind of control device, and it comprises: be used to provide the local clock module of clock signal, and respectively coupled main decoder module, from decoder module, chief editor's sign indicating number module with from coding module;
Described control device also comprises the display control module that is connected with above-mentioned each module, is used to judge the validity and the signal validity of master and slave cascade channel, handles the input signal of master and slave cascade channel;
Described main decoder module is used to receive the serial input signals in main UNICOM road, sends to described display control module after the decoding;
Describedly be used to receive serial input signals, send to described display control module after the decoding from cascade channel from decoder module;
Described chief editor's sign indicating number module is used for the main UNICOM road serial output signal of described display control module is encoded, and transmits by main UNICOM road;
Describedly be used for to the encoding of described display control module, by transmitting from cascade channel from cascade channel serial output signal from coding module.
Described control device, wherein, described display control module comprises:
First judging unit is used to judge the signal whether stabilized frequency is arranged in the master and slave cascade channel;
Second judging unit is used to judge whether signal is effective in the master and slave cascade channel;
And data processing unit, be used to intercept local data, adding set state bag.
Described control device, wherein, described main decoder module adopts identical decoding protocol element with described from decoder module, and described chief editor's sign indicating number module adopts identical coding protocol unit with described from coding module.
Described control device wherein, in described decoding protocol element and the described coding protocol unit, adopts the pulse signal of a complete cycle to represent 1 signal, and wherein, the high level time of logical one is greater than the high level time of logical zero.
The utility model also provides a kind of system of automatic fault reporting, comprising: master controller, at least one and the control device of master controller cascade, the slave controller that level is associated in the control device tail end; Master controller and control device constitute main UNICOM road, and slave controller and control device constitute from cascade channel; Described master controller is used to send main connection input signal, receives from the cascade channel output signal; Described slave controller is used to send from the cascade input signal, receives main UNICOM road output signal; Described control device comprises: be used to provide the local clock module of clock signal, and respectively coupled main decoder module, from decoder module, chief editor's sign indicating number module with from coding module; Also comprise the display control module that is connected with above-mentioned each module, be used to judge the validity and the signal validity of master and slave cascade channel, handle the input signal of master and slave cascade channel; Described main decoder module is used to receive the serial input signals in main UNICOM road, sends to described display control module after the decoding; Describedly be used to receive serial input signals, send to described display control module after the decoding from cascade channel from decoder module; Described chief editor's sign indicating number module is used for the main UNICOM road serial output signal to described display control module, encodes, and transmits by main UNICOM road; Described from coding module be used for to described display control module from cascade channel serial output signal, encode, by transmitting from cascade channel.
Described system, wherein, described main decoder module adopts identical decoding protocol element with described from decoder module, and described chief editor's sign indicating number module adopts identical coding protocol unit with described from coding module.
Described system, wherein, in described decoding protocol element and the coding protocol unit: adopt the pulse signal of a complete cycle to represent 1 signal, the high level time of logical one is greater than the high level time of logical zero.
Described system also comprises the LED lamp point that at least one and described display control module is connected, and described display control module receives the fault message of each LED lamp point, is used to handle main UNICOM road and from the input signal of cascade channel.
Described system, also comprise at least one drive unit, each drive unit connects a LED lamp point at least, described display control module is by each LED lamp point of each driving device controls, described display control module receives the fault message of each drive unit and the fault message of each LED lamp point, is used to handle main UNICOM road and from the input signal of cascade channel.
Adopt such scheme, the utility model has increased a slave controller by the end at former transmission cascade chain, and controller sends control signal thus, thereby increased a reverse cascade channel, make the malfunction of master and slave cascade channel can feed back to master and slave controller in real time, generate Trouble Report, in time fix a breakdown, improve system works stability.
Description of drawings
Fig. 1 is the schematic diagram of prior art single line transmission plan;
Fig. 2 is the schematic diagram of a kind of execution mode of the present utility model;
Fig. 3 is the structural representation of a kind of execution mode of the present utility model;
Fig. 4 is the schematic diagram of the utility model display control module;
Fig. 5 is the schematic diagram of a kind of embodiment of the utility model;
Fig. 6 is the schematic diagram of a kind of embodiment of the utility model;
Fig. 7 is the utility model cascade signal schematic diagram;
Fig. 8 is a signal schematic representation in a kind of embodiment main of the utility model UNICOM road;
Fig. 9 signal schematic representation that is a kind of embodiment of the utility model in the cascade channel;
Figure 10 is the flow chart of the utility model method.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
As shown in Figure 2, the utility model provides a kind of control device of LED light fixture, this control device comprises: comprise the local clock module that is used to provide clock signal, and respectively coupled main decoder module, from decoder module, chief editor's sign indicating number module with from coding module.
Described control device also comprises the display control module that is connected with above-mentioned each module, is used to judge the validity and the signal validity of master and slave cascade channel, handles the input signal of master and slave cascade channel;
Described main decoder module is used to receive the serial input signals in main UNICOM road, sends to described display control module after the decoding;
Describedly be used to receive serial input signals, send to described display control module after the decoding from cascade channel from decoder module;
Described chief editor's sign indicating number module is used for the main UNICOM road serial output signal of described display control module is encoded, and transmits by main UNICOM road;
Describedly be used for to the encoding of described display control module, by transmitting from cascade channel from cascade channel serial output signal from coding module.
For example, main decoder module, the road serial input signals msin of main UNICOM that is used to decode, output signal m_data; From decoder module, be used for decoding from cascade channel serial input signals ssin, output signal s_data; Chief editor's sign indicating number module is used for the road serial output signal m_datal of the main UNICOM coding output to handling through display control module; From coding module, be used for exporting of handling through display control module from cascade channel serial output signal s_datal coding; Display control module is used to receive main connection signal m_data and from cascade signal s_data, judges main UNICOM road and from cascade channel validity and signal validity, handles main UNICOM road and from the cascade channel input signal according to different situations; And the local clock module, be used for providing clock signal to above-mentioned module.
Define channel effectively is the signal that stabilized frequency is arranged in each passage in the utility model, otherwise passage is invalid; Definition signal effectively is to be main connection signal in the main UNICOM road, and then main connection signal is effective, is from cascade signal in cascade channel, and is then effective from cascade signal, otherwise invalidating signal.
Describe below that display control module is judged main UNICOM road in detail and from cascade channel validity and signal validity and concrete signal processing method.
Receiving the road signal m_data of main UNICOM and behind cascade channel signal s_data, the frame that detects m_data and s_data respectively begins bag, begin bag if only detect the frame of signal in the main UNICOM road, think that then main UNICOM is effective and invalid from cascade channel; The frame of signal begins bag in the cascade channel if only detect, and then thinks from cascade channel effectively and main UNICOM road is invalid, begins bag if all detect correct frame in the master and slave cascade channel, then thinks main UNICOM road and all effective from cascade channel.
Situation one: effectively and invalid from cascade channel promptly there is the signal of stabilized frequency in main UNICOM road in the main UNICOM road, does not have the signal of stabilized frequency in the cascade channel.Read the frame state bag of signal m_data in the main UNICOM road, the some local frame data bag of signal is as local display control signal in the intercepting main UNICOM road, the number of concrete data intercept bag is determined according to the number of lamp point that control device is controlled, adding set state bag behind the residue frame packet of main UNICOM road signal afterwards, this unit state bag comprised the state information of current control device, chip for driving that it is controlled and with the state information of the LED lamp point that is connected; More than in each signal processing link, only handle the signal m_data in the main UNICOM road, for from cascade channel, do not begin bag owing to detect frame, so this passage is in disarmed state,, above-mentioned treated main UNICOM road signal assignment should be given from cascade channel at this passage, in chief editor's sign indicating number module with from coding module encoded in main UNICOM road and the signal in cascade channel, export to next stage cascade control device.
Situation two: main UNICOM road is invalid and effective from cascade channel, and the signal of stabilized frequency is promptly arranged in the cascade channel, and the signal of no stabilized frequency in the main UNICOM road.At this moment, read the frame state bag of signal s_data in the cascade channel, several frame data bags of intercepting signal in the cascade channel are as local display control signal, the concrete number of data intercept bag is determined according to the number of lamp point that control device is controlled, afterwards at adding set state bag behind the residue frame packet of cascade channel signal, this unit state bag has comprised the state information of the state information of current control device, chip for driving that it is controlled and coupled LED lamp point; More than in each signal processing link, only handle the signal s_data in the cascade channel, for main UNICOM road, do not begin bag owing to detect frame, so this passage is in disarmed state,, should treatedly give main UNICOM road with above-mentioned from cascade channel signal assignment at this passage, in chief editor's sign indicating number module with from coding module encoded in main UNICOM road and the signal in cascade channel, export to next stage cascade control device.
Situation three: main UNICOM road, all effective, i.e. main UNICOM road and the signal of stabilized frequency is all arranged in the cascade channel from cascade channel.Read main UNICOM road signal respectively and from the frame state bag of cascade channel signal, it is main UNICOM road signal or from the state information of cascade channel signal that the frame state bag contains current demand signal, therefore can judge main UNICOM road according to the frame state bag and from cascade channel signal validity.If main UNICOM road signal and all effective from the cascade channel signal, then intercept main UNICOM road signal respectively and from the frame data bag of cascade channel signal, frame data bag output display control signal ctrl according to main UNICOM road signal, the LED lamp point number that the number of same data intercept bag is controlled according to control device is determined, afterwards main UNICOM road signal and from the cascade channel signal adding set state bag behind the remaining frame data bag, chief editor sign indicating number module and from coding module with above-mentioned main UNICOM's road signal with from the cascade channel signal encoding, export to the next stage control device; If main UNICOM road signal is effectively and from the cascade channel invalidating signal, then only intercept the frame data bag of main UNICOM road signal, frame data bag output display control signal ctrl according to main UNICOM road signal, adding set state bag behind the remaining frame data bag of main UNICOM road signal afterwards, and be left intact for the signal in cascade channel, former state is transmitted and is got final product, chief editor sign indicating number module and from coding module with above-mentioned main UNICOM's road signal with from the cascade channel signal encoding, export to the next stage control device; If main UNICOM road invalidating signal and effective from the cascade channel signal, then only intercept frame data bag from the cascade channel signal, according to frame data bag output display control signal ctrl from the cascade channel signal, adding set state bag behind remaining frame data bag afterwards from the cascade channel signal, and be left intact for the signal in the main UNICOM road, former state is transmitted and is got final product, chief editor sign indicating number module and from coding module with above-mentioned main UNICOM's road signal with from the cascade channel signal encoding, export to the next stage control device.
Employing has been finished the Signal Processing process at current control device with upper type.Like this, control device can normally be exported display control signal equally, and the state information of this stage arrangement and chip for driving thereof in time can be returned under the situation that a cascade channel disconnects, make control end can grasp the system works situation in real time, in time fix a breakdown.
Need to prove, control device of the present utility model must be under the effective situation at least one cascade channel, the ability operate as normal, the production method of the state information of chip for driving of controlling for state information and it of current control device and LED lamp point thereof in addition, belong to known technology, needn't give unnecessary details at this.
On the basis of embodiment 1, display control module can adopt such structure to realize its function, as shown in Figure 4, this display control module comprises: first judging unit, be used to judge the signal whether stabilized frequency is arranged in the master and slave cascade channel, thereby judge the validity in main UNICOM road and from the validity of cascade channel; Second judging unit is used to judge master and slave cascade signal validity, judges promptly whether signal is effective in the master and slave cascade channel; This display control module also comprises data processing unit, is used to handle the signal in the master and slave cascade channel, promptly intercepts local data, adding set state bag.Finished the data processing function of display control module like this, very easily.
Embodiment 3
On the basis of embodiment 1, for the main decoder module, adopt identical decoding protocol element to decode from decoder module, chief editor's sign indicating number module and adopt identical coding protocol unit to encode from coding module.Can improve the system data treatment effeciency like this.
Embodiment 4
On the basis of embodiment 3, can adopt such decoding protocol element and coding protocol unit: in decoding protocol element and coding protocol unit, agreement is represented a signal with the pulse signal of a complete cycle, wherein the long signal of high level time is a logical one, and the short signal of high level time is a logical zero.This special signal agreement can be easy to realize data sampling, and then makes things convenient for Code And Decode.
Embodiment 5
And the utility model also provides a kind of system of automatic fault reporting, and it comprises: master controller, at least one and the control device of master controller cascade, the slave controller that level is associated in the control device tail end; Master controller and control device constitute main UNICOM road, and slave controller and control device constitute from cascade channel; Wherein, described control device is the described control device of above-mentioned arbitrary embodiment.
For example, this system also comprises the LED lamp point that at least one and described display control module is connected, and described display control module receives the fault message of each LED lamp point, is used to handle main UNICOM road and from the input signal of cascade channel.
And for example, this system also comprises at least one drive unit, each drive unit connects a LED lamp point at least, described display control module is its LED lamp point that is connected by each driving device controls, described display control module receives the fault message of each drive unit and the fault message of each LED lamp point, is used to handle main UNICOM road and from the input signal of cascade channel.
An example as shown in Figure 5, this system comprises: the control device of master controller 501, three and master controller cascade, comprise control device 503, control device 504, control device 505, be numbered control device s00, control device s01, control device s02 respectively, level is associated in a slave controller 502 of control device tail end; Master controller 501 and control device s00, control device s01, control device s02 constitute main UNICOM road, and slave controller 502 and control device s00, control device s01, control device s02 constitute from cascade channel; Wherein master controller 501, send main connection input signal msin, receive from cascade channel output signal sbout_s00; Slave controller sends from cascade input signal ssin, receives the main road output signal saout_s02 of UNICOM; Control device s00, control device s01, control device s02 26S Proteasome Structure and Function are identical with embodiment 1 described control device, do not repeat them here.
Application as a kind of this system, control device s00 control three-stage cascade chip for driving, comprise chip for driving 506, chip for driving 507, chip for driving 508, control device s01 control three-stage cascade chip for driving, comprise chip for driving 509, chip for driving 510, chip for driving 511, control device s02 control three-stage cascade chip for driving comprises chip for driving 512, chip for driving 513, chip for driving 514, and each chip for driving drives some LED lamp points respectively.
As the application of another kind of this system, as shown in Figure 6, control device s00 directly controls some R, G, B lamp point, and control device s01 directly controls some R, G, B lamp point, and control device s02 directly controls some R, G, B lamp point.
A kind of method that realizes automatic fault reporting also is provided in addition, has been applied in the system as shown in Figure 5.It comprises following steps.
A, to joint control system devices at different levels, carry out following steps in regular turn respectively:
A1: to the input signal decoding of master and slave cascade channel; Wherein said input signal is made up of frame signal, and every frame signal comprises: frame begins bag, frame state bag and frame data bag;
A2: the frame that detects each frame signal begins bag, judges respectively whether master and slave cascade channel is effective; All be, then carry out A3, arbitrary for not, then carry out A4.If for not, then can't obtain Trouble Report simultaneously.
A3: to each input signal, reading its frame state bag, judge its whether useful signal, is then to obtain its frame data bag, is its adding set state bag, otherwise directly transmits; Carry out A5; Wherein, described adding set state bag specifically can be carried out following steps: B1: receive control device at the corresponding levels and the status signal that is subjected to the device of its control; B2: according to described status signal generating apparatus state bag; This step can generate one or more unit state bags by actual needs; B3: adding set state bag after the frame data bag of frame signal.
A4: to the input signal in effective passage, read its frame state bag, obtain its frame data bag, be its adding set state bag; To invalid passage, the output signal that then adopts effective passage is as output;
A5: the master and slave cascade channel signal of coding output;
B, analyze the output signal of final master and slave cascade channel, obtain Trouble Report.
For example, in each control device, all carry out following operation in regular turn, master and slave cascade channel input signal decoding; The frame of detection signal begins bag; Judge master and slave cascade channel validity, wherein passage effectively is meant the signal that stabilized frequency is arranged in each passage; If master and slave cascade channel is all effectively then according to the following step processing signals: the frame state bag that reads each channel signal; Judge signal validity, it is from cascade signal for main joins signal in cascade channel that signal effectively is meant in main UNICOM the road in; The frame data bag of intercepting useful signal; Be useful signal adding set state bag; Invalid signals is not carried out any operation; Afterwards to the output of encoding respectively of master and slave cascade channel signal.
If following operation is then carried out: the frame state bag that reads signal in effective passage in main UNICOM road or invalid from cascade channel; Intercept the frame data bag of signal in effective passage; Be signal adding set state bag in effective passage; Invalid passage uses the output signal of effective passage as output; Master and slave cascade channel signal encoding output; Later joint control system device at different levels repeats above step; At the cascade chain tail end, master and slave controller is analyzed master and slave cascade channel output signal and is obtained Trouble Report.
Below in conjunction with system schematic as shown in Figure 5, main UNICOM road signal schematic representation shown in Figure 8, shown in Figure 9 from the cascade channel signal schematic representation, and method flow diagram shown in Figure 10, method of the present utility model is described in detail in detail.
System is by master controller 501, slave controller 502 as shown in Figure 5,3 grades of control device, comprise control device 503, control device 504, control device 505, be numbered control device s00, control device s01, control device s02 respectively, and the chip for driving of being controlled separately 506 is formed to chip for driving 514 and LED lamp point R that each chip for driving drove, G, B.Master and slave cascade channel all carries out the signal transmission according to each bag of frame signal shown in Figure 7 order from left to right, and frame begins to wrap the data into immobilized substance, is used for determining the beginning of a frame signal; The information that comprises in the frame state bag comprises: current frame signal is main or from frame data bag number that cascade signal, current frame signal comprised; The frame data bag comprises the control information to chip for driving; In the present embodiment, each control device control three-stage cascade chip for driving, each chip for driving need intercept 1 frame data bag, all comprises 9 frame data bags in the middle of the frame signal of sending in master controller 501 and the slave controller 502.
Situation one:
When main UNICOM road between master controller, slave controller and each control device with from cascade channel when all working properly.
Concerning control device s00, the input cascade signal that it receives is respectively the output signal msin and the sbout_s01 of master controller, sbout_s01 is the slave controller output signal ssin that process two-stage control device s02 and s01 handled, as shown in Figure 9, after ssin process s02 and s01 intercept required separately frame data bag adding set state bag, remain three frame data bag D7, D8, D9,6 frame state bag S1 have been increased, S2, S3, S4, S5 and S6, wherein, S1 has comprised state information and chip for driving 512 and its R that is driven of control device s02, G, the state information of B lamp point, S2, S3 has then comprised chip for driving 513, chip for driving 514 and corresponding R, G, the state information of B lamp point, S4 has comprised state information and chip for driving 509 and its R that is driven of control device s01, G, the state information of B lamp point, S5, S6 has then comprised chip for driving 510, chip for driving 511 and corresponding R, G, the state information of B lamp point; Through the main decoder module with after the decoder module decoding, the first step, the display control module of s00 begin bag to the frame of msin and sbout_s01 and detect, when detecting frame and beginning to wrap, confirm main UNICOM road and all effective, and confirm the beginning of each frame signal from cascade channel; Second step, carry out reading of msin and sbout_s01 frame state bag, thereby learn that the msin signal is a main signal, the sbout_s01 signal is from signal, this main UNICOM road signal and all effective from the cascade channel signal, frame data bag number is 9; The 3rd, msin and sbout_s01 are carried out the intercepting of packet, preceding 3 frame data bag D1, D2, the D3 of intercepting msin, last three frame data bag D7, D8, the D9 of intercepting sbout_s01; The 4th, msin is increased by 3 unit state bag S1, S2, S3, wherein, S1 has comprised the state information of control device s00 and the state information of chip for driving 01 and its R that is driven, G, B lamp point, and S2, S3 have then comprised R, the G of chip for driving 02,03 and correspondence, the state information of B lamp point; Sbout_s01 is increased by 3 unit state bag S7, S8, S9, wherein, S7 has comprised the state information of control device s00 and the state information of chip for driving 01 and its R that is driven, G, B lamp point, and S8, S9 have then comprised R, the G of chip for driving 02,03 and correspondence, the state information of B lamp point.Meanwhile, the display control module of control device s00 is exported to its chip for driving of controlling 506,507,508 according to the chip for driving control signal ctrl that main connection input signal msin is generated, at last, chief editor sign indicating number module and from coding module with treated main connection signal with from the cascade signal recompile, output saout_s00 and sbout_s00.
Concerning control device s01, input signal is the output signal saout_s00 of control device s00 and the output sbout_s02 of control device s02, as Fig. 8 and the frame signal structure that Figure 9 shows that saout_s00 and sbout_s02, the remainder data processing procedure is identical with control device s00, repeats no more.
Concerning control device s02, input signal is the output signal saout_s01 of control device s01 and the output signal ssin of slave controller 502, as Fig. 8 and the frame signal structure that Figure 9 shows that saout_s01 and ssin, the remainder data processing procedure is identical with control device s00, repeats no more.
The road signal msin of main UNICOM and after cascade channel signal ssin handles through the three-stage cascade control device, be output as saout_s02 and sbout_s00 respectively, at master controller and slave controller end at the slave controller end, receive respectively as Fig. 8 and saout_s02 and sbout_s00 shown in Figure 9, by analysis to the state bag, can know, this signal of saout_s02 is a main connection signal, illustrate that main UNICOM road is working properly, by analysis to unit state bag 1 to 9, can know 9 chip for driving 506 to 514 and corresponding R thereof in the cascade chain, G, the malfunction of B lamp point has obtained Trouble Report.
Situation two:
When fault appears in the main UNICOM road between control device s00 and the s01.
Concerning control device s00, the input cascade signal that it receives is respectively the output signal msin and the sbout_s01 of master controller, control device s00 is identical to the processing procedure to msin and sbout_s01 in the processing procedure of msin and sbout_s01 and the situation one, needn't give unnecessary details.
Concerning control device s01, input signal should be the output sbout_s02 of control device s02 and the output signal saout_s00 of control device s00, but because fault appears in the main UNICOM road between control device s00 and the s01, therefore, do not receive the road signal saout_s00 of main UNICOM this moment; Sbout_s02 is the slave controller output signal ssin that handled through control device s02, as shown in Figure 9, after ssin intercepts frame data bag and adding set state bag through s02, remain 6 frame data bag D4, D5, D6, D7, D8, D9,3 frame state bag S1, S2, S3 have been increased, wherein, S1 has comprised the state information of control device s02 and the state information of chip for driving 512 and its R that is driven, G, B lamp point, and S2, S3 have then comprised chip for driving 513, chip for driving 514 and corresponding R, G, the state information of B lamp point; After the decoder module decoding of associating, the first step, the display control module of s01 begins bag to the frame of sbout_s02 and detects, the frame that detects sbout_s02 begins bag, and the frame that detects less than signal in the main UNICOM road begins bag, affirmation is effective from cascade channel, and main UNICOM road is invalid, and confirms the beginning of main UNICOM road one frame signal; In second step, carry out reading of sbout_s02 frame state bag; The 3rd, sbout_s02 is carried out the intercepting of frame data bag, preceding 3 frame data bag D4, D5, the D6 of intercepting sbout_s02, meanwhile, the display control module of control device s01 is exported to its chip for driving of controlling 509,510,511 according to generate chip for driving control signal ctrl from cascade channel signal sbout_s02; The 4th, sbout_s02 is increased by 3 unit state bag S4, S5, S6, wherein, S4 has comprised the state information of control device s01 and the state information of chip for driving 509 and its R that is driven, G, B lamp point, and S5, S6 have then comprised R, the G of chip for driving 510,511 and correspondence, the state information of B lamp point.The 5th because no signal in this moment main UNICOM road is in disarmed state, use above-mentioned treated from the output signal of cascade channel signal as main UNICOM road, also promptly in Fig. 5 the value of the output saout_s01 of control device s01 be sbout_s01; At last, chief editor sign indicating number module and treated signal sbout_s01 recompile in cascade signal and main UNICOM road is exported sbout_s01 and saout_s01 from coding module.
Concerning control device s02, input signal is the output signal saout_s01 of control device s01 and the output signal ssin of slave controller 502, be illustrated in figure 9 as the frame signal structure of ssin, as from the foregoing, signal saout_s01 is sbout_s01 in fact, so its signal structure is shown in sbout_s01 among Fig. 9.After master and slave decoder module decoding, the first step, the display control module of s02 begin bag to the frame of ssin and saout_s01 and detect, and the frame that detects ssin and saout_s01 begins bag, confirm that master and slave cascade channel is all effective, and confirm the beginning of master and slave cascade channel one frame signal; Second step, read the frame state bag of ssin and saout_s01, thereby confirm that the signal main UNICOM road in is from cascade signal sbout_s01, the signal in cascade channel is from cascade signal, so main joins invalidating signal and effective from cascade signal; The 3rd, effective cascade signal ssin is carried out the intercepting of frame data bag, preceding 3 frame data bag D1, D2, the D3 of intercepting ssin, meanwhile, the display control module of control device s01 is exported to its chip for driving of controlling 512,513,514 according to generate chip for driving control signal ctrl from cascade channel signal ssin; The 4th, ssin is increased by 3 unit state bag S1, S2, S3, wherein, S1 has comprised the state information of control device s02 and the state information of chip for driving 512 and its R that is driven, G, B lamp point, and S2, S3 have then comprised chip for driving 513, chip for driving 514 and corresponding R, G, the state information of B lamp point.It may be noted that, because invalidating signal in the main UNICOM road, above-mentioned steps does not all relate to Signal Processing in the main UNICOM road, its former state is transmitted each packet, also i.e. as shown in Figure 9 sbout_s01, it comprises that frame begins bag, frame state bag, frame data bag D7, D8, D9 and unit state bag S1, S2, S3, S4, S5, S6; At last, chief editor sign indicating number module and treated signal sbout_s01 recompile in cascade signal and main UNICOM road is exported sbout_s02 and saout_s02 from coding module.
The road signal msin of main UNICOM and after cascade channel signal ssin handles through the three-stage cascade control device, be output as saout_s02 and sbout_s00 respectively, should be noted that, this moment, saout_s02 was sbout_s01 in fact, at master controller, receive sbout_s00 as shown in Figure 9, by analysis to the frame state bag, can know, the sbout_s00 signal is from cascade signal, illustrates from cascade channel working properlyly, receives as shown in Figure 9 sbout_s01 in the slave controller termination, by analysis to the frame state bag, can know that the sbout_s01 signal is from cascade signal, illustrate that fault appears in main UNICOM road; At master controller or slave controller end, by analysis, can know in the cascade chain malfunction of 9 chip for driving 506 to 514 and corresponding R, G, B lamp point to unit state bag 1 to 9, so just obtained Trouble Report.
For other faults of system shown in Figure 5, processing method all can obtain Trouble Report all as mentioned above, does not repeat them here.
On the basis of embodiment 5, each packet in the frame signal can be set, begin bag as frame, the frame state bag, the frame data bag all comprises identical data bits.In each packet, comprise the identical data figure place, the beginning of packet and end only need judge by data bits, reduce the logic determines difficulty, reduce failure rate.
Embodiment 7
On the basis of embodiment 5, method as a kind of adding set state bag, can realize like this: receive control device at the corresponding levels and the status signal err that is subjected to the device of its control, as directly controlling LED lamp point or controlling LED lamp point by chip for driving, according to status signal err generating apparatus state bag, at last said apparatus state bag is added on the coding output afterwards of frame data bag.This unit state bag can comprise the state information of LED lamp point separately, perhaps comprises the state information of LED lamp point and chip for driving simultaneously, and this unit state bag is added on the coding output afterwards of frame data bag, convenient control device deal with data at different levels.
On the basis of embodiment 7, control device at the corresponding levels can directly be controlled some LED lamp points, and can only generate a unit state bag this moment, and this unit state bag has comprised the state information of control device at the corresponding levels and the state information of LED lamp point.
Embodiment 9
On the basis of embodiment 7, control device at the corresponding levels can the multistage chip for driving of cascade, each chip for driving drives some LED lamp points, can generate multiple arrangement state bag this moment, S1, S2......Sn, unit state bag S1 has comprised the state information of control device at the corresponding levels and first order chip for driving and institute's driving LED lamp point thereof, and S2 to Sn has comprised the state information of second level chip for driving to the n level chip for driving and the LED lamp point that each is self-driven thereof.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improvement and conversion all should belong to the protection range of the utility model claims.
Claims (9)
1, a kind of control device is characterized in that, comprises the local clock module that is used to provide clock signal, and respectively coupled main decoder module, from decoder module, chief editor's sign indicating number module with from coding module;
Described control device also comprises the display control module that is connected with above-mentioned each module, is used to judge the validity and the signal validity of master and slave cascade channel, handles the input signal of master and slave cascade channel;
Described main decoder module is used to receive the serial input signals in main UNICOM road, sends to described display control module after the decoding;
Describedly be used to receive serial input signals, send to described display control module after the decoding from cascade channel from decoder module;
Described chief editor's sign indicating number module is used for the main UNICOM road serial output signal of described display control module is encoded, and transmits by main UNICOM road;
Describedly be used for to the encoding of described display control module, by transmitting from cascade channel from cascade channel serial output signal from coding module.
2, control device according to claim 1 is characterized in that, described display control module comprises:
First judging unit is used to judge the signal whether stabilized frequency is arranged in the master and slave cascade channel;
Second judging unit is used to judge whether signal is effective in the master and slave cascade channel;
And data processing unit, be used to intercept local data, adding set state bag.
3, control device according to claim 1 is characterized in that, described main decoder module adopts identical decoding protocol element with described from decoder module, and described chief editor's sign indicating number module adopts identical coding protocol unit with described from coding module.
4, control device according to claim 3, it is characterized in that, in described decoding protocol element and the described coding protocol unit, adopt the pulse signal of a complete cycle to represent 1 signal, wherein, the high level time of logical one is greater than the high level time of logical zero.
5, a kind of system of automatic fault reporting is characterized in that, comprising: master controller, at least one and the control device of master controller cascade, the slave controller that level is associated in the control device tail end; Master controller and control device constitute main UNICOM road, and slave controller and control device constitute from cascade channel;
Described master controller is used to send main connection input signal, receives from the cascade channel output signal;
Described slave controller is used to send from the cascade input signal, receives main UNICOM road output signal;
Described control device comprises: be used to provide the local clock module of clock signal, and respectively coupled main decoder module, from decoder module, chief editor's sign indicating number module with from coding module; Also comprise the display control module that is connected with above-mentioned each module, be used to judge the validity and the signal validity of master and slave cascade channel, handle the input signal of master and slave cascade channel;
Described main decoder module is used to receive the serial input signals in main UNICOM road, sends to described display control module after the decoding;
Describedly be used to receive serial input signals, send to described display control module after the decoding from cascade channel from decoder module;
Described chief editor's sign indicating number module is used for the main UNICOM road serial output signal to described display control module, encodes, and transmits by main UNICOM road;
Described from coding module be used for to described display control module from cascade channel serial output signal, encode, by transmitting from cascade channel.
6, system according to claim 5 is characterized in that, described main decoder module adopts identical decoding protocol element with described from decoder module, and described chief editor's sign indicating number module adopts identical coding protocol unit with described from coding module.
7, system according to claim 5 is characterized in that, in described decoding protocol element and the coding protocol unit: adopt the pulse signal of a complete cycle to represent 1 signal, the high level time of logical one is greater than the high level time of logical zero.
8, system according to claim 5, it is characterized in that, also comprise the LED lamp point that at least one and described display control module is connected, described display control module receives the fault message of each LED lamp point, is used to handle main UNICOM road and from the input signal of cascade channel.
9, system according to claim 5, it is characterized in that, also comprise at least one drive unit, each drive unit connects a LED lamp point at least, described display control module is its LED lamp point that is connected by each driving device controls, described display control module receives the fault message of each drive unit and the fault message of each LED lamp point, is used to handle main UNICOM road and from the input signal of cascade channel.
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|---|---|---|---|
| CNU200820123845XU CN201341253Y (en) | 2008-11-20 | 2008-11-20 | Control device and automatic fault reporting system |
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| CNU200820123845XU CN201341253Y (en) | 2008-11-20 | 2008-11-20 | Control device and automatic fault reporting system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102945653A (en) * | 2012-11-09 | 2013-02-27 | 深圳市晟碟半导体有限公司 | Method and system for realizing internal control display of cascade LED (light-emitting diode) chip |
| WO2013040736A1 (en) * | 2011-09-19 | 2013-03-28 | 东莞勤上光电股份有限公司 | Dc high voltage power supply led street lamp system and realization method thereof |
| CN104064150A (en) * | 2014-07-08 | 2014-09-24 | 苏州卓能微电子技术有限公司 | Two-channel signal transmitting method for LED driving chips |
| CN114203102A (en) * | 2021-11-04 | 2022-03-18 | 东莞阿尔泰显示技术有限公司 | Display data distribution method and system of display module |
-
2008
- 2008-11-20 CN CNU200820123845XU patent/CN201341253Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013040736A1 (en) * | 2011-09-19 | 2013-03-28 | 东莞勤上光电股份有限公司 | Dc high voltage power supply led street lamp system and realization method thereof |
| CN102945653A (en) * | 2012-11-09 | 2013-02-27 | 深圳市晟碟半导体有限公司 | Method and system for realizing internal control display of cascade LED (light-emitting diode) chip |
| CN104064150A (en) * | 2014-07-08 | 2014-09-24 | 苏州卓能微电子技术有限公司 | Two-channel signal transmitting method for LED driving chips |
| CN114203102A (en) * | 2021-11-04 | 2022-03-18 | 东莞阿尔泰显示技术有限公司 | Display data distribution method and system of display module |
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