CN101672989A - Fault warning plane display and fault warning method thereof - Google Patents
Fault warning plane display and fault warning method thereof Download PDFInfo
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- CN101672989A CN101672989A CN200810149597A CN200810149597A CN101672989A CN 101672989 A CN101672989 A CN 101672989A CN 200810149597 A CN200810149597 A CN 200810149597A CN 200810149597 A CN200810149597 A CN 200810149597A CN 101672989 A CN101672989 A CN 101672989A
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Abstract
The invention discloses a fault warning plane display and a fault warning method thereof. The display comprises a backlight module, an anomaly detector, a microprocessor and an anomaly signal transceiver, wherein the anomaly detector is used for detecting the abnormal condition of a flat panel display and generating an anomaly detection signal; and the anomaly signal transceiver receives the anomaly detection signal and transmits the anomaly detection signal to a proper receiver to perform active detection and notify the receiver of current use condition of the flat panel display to facilitatethe dynamic monitoring of the receiver, so that the flat plane display can be effectively repaired when having a fault.
Description
Technical field
The present invention relates to a kind of flat-panel screens and fault warning method, but relate in particular to a kind of flat-panel screens of failure warning, and in order to the fault warning method of the malfunction of display plane display.
Background technology
In recent years, because the low power consumption and the little characteristics of size of flat-panel screens, the market demand in different application field is always constantly in increase, and wherein the electronic bill-board of public display purposes has also occurred in market in a large number, billboard or lamp box such as public fields such as general sales field, department store, boat station or rapid transit stations, all progressively replace, to improve the general common people playing the degree of watching attentively of message with flat-panel screens with dynamic show image.
Yet the liquid crystal electron billboard can cause luminance level to descend because of using for a long time, promptly takes place aging.In addition, the fluorescent tube in the backlight module causes whole group backlight module to end running because of the frequent operation of extinguishing easily, and then makes whole liquid crystal electron billboard stop the broadcast of image, even causes the loss of commercial advertisement interests.
In the prior art, the framework of flat-panel screens comprises an independent power supply device, in order to stable power to be provided, and comprises the plate that boosts, in order to start the fluorescent tube in the backlight module.The example that is set at present LCD TV, when a certain fluorescent tube in the backlight module breaks down and extinguishes, can start internal mechanism all fluorescent tubes are extinguished, cause display to stop the operation of show image, can cause the integral display shut-down operation during promptly a certain abnormal condition of lamp tube.After the user finds fault, generally be to utilize the maintenance private telephone, the notice maintenance center repairs or replaces new product, and required time may surpass a week, and display stops always in this section period, causes user's considerable damage.
The shortcoming of prior art is for lacking effective malfunction notification mechanism, spends many times getting in touch with the round of maintenance center.In addition, the user needs often to note the demonstration situation of display, to notify the maintenance center with abnormality at any time, so just need drop into sizable manpower.
Therefore, be sought after a kind of mechanism that can initiatively detect the abnormal show situation of display, and can real-time informing the maintenance center method of keeping in repair.
Summary of the invention
But the object of the present invention is to provide a kind of flat-panel screens of failure warning and the method for failure warning thereof.This display is directly informed failure message the message of maintenance center fluorescent tube fault, so that real-time maintenance mechanism to be provided.The user mode of the present flat-panel screens of take over party is initiatively detected and notified to this display in addition, makes things convenient for the take over party to carry out dynamic surveillance, and then can effectively keep in repair when the flat-panel screens fluorescent tube breaks down.Method by failure warning reaches shortening malfunction notification time, the purpose of high efficiency maintenance mechanism and real-time monitoring system.
To achieve these goals, but the flat-panel screens of a kind of failure warning provided by the invention, comprise a backlight module, this backlight module comprises a plurality of fluorescent tubes, each these fluorescent tube connects a high-voltage power supply, and two be connected in series electric capacity being connected in parallel with this high-voltage power supply junction, the voltage at these two capacitance series places is a fluorescent tube signal, but the flat-panel screens of being somebody's turn to do failure warning further comprises an abnormity detecting device, one microprocessor and an abnormal signal transmit receiver, this abnormity detecting device receives the fluorescent tube signal that is sent by this backlight module, and convert a digital signal to, and determine according to a proper method whether this fluorescent tube signal shows that a certain fluorescent tube in this backlight module breaks down, to produce a lamp tube status signal; This little processing receives this lamp tube status signal, according to presetting Rule of judgment to produce a fault-signal; This abnormal signal transmits receiver and receives this fault-signal, and convert a failure message with appropriate format to, be sent to cable network or wireless network, and this abnormal signal transmission receiver can receive the command information that cable network or wireless network transmit, to carry out necessary predetermined registration operation, reach the function of two-way passback according to this command information.
This abnormity detecting device comprises an analog-to-digital converter and a controller, this analog-to-digital converter becomes a digital signal with this lamp tube status conversion of signals, after this controller receives this digital signal, carry out a corresponding default processing operation according to this proper method, to produce this fault-signal.
This proper method is a Filtering Processing, comprises that carrying out a digital filtering handled and should defaultly handle operation, produces rub-out signal to avoid the outside noise influence.
This digital filtering is handled and is comprised with a counter and cooperate an internal clocking or external reference clock, the time of this digital signal of accumulative total, when this cumulative time surpasses a critical value, judge that this digital signal is a useful signal, and produce relative fault-signal, and when this cumulative time does not surpass this critical value, judge that this digital signal is an invalid signals, thereby do not produce fault-signal.
This abnormity detecting device can be a microprocessor, and this little processing has simulates to the digital conversion function, and carries out a built-in firmware program that corresponds to this Filtering Processing, defaultly handles operation to finish this.
But the flat-panel screens of described failure warning, further comprise an optical sensing module,, and produce a light sensing signal and send this microprocessor in order to the luminosity of detecting fluorescent tube, this little processing receives this light sensing signal, according to presetting Rule of judgment to produce this fault-signal.
But the flat-panel screens of described failure warning, further comprise a temperature sensing module, in order to detect the temperature of a display interior in this flat-panel screens, and produce a temperature sensing signal and send this microprocessor to, this little processing receives this temperature sensing signal, according to presetting Rule of judgment to produce this fault-signal.
But the flat-panel screens of described failure warning, further comprise a rotation speed of the fan sensing module, in order to detect the rotating speed of a fan in this flat-panel screens, and produce a rotation speed of the fan sensing signal and send this microprocessor to, this little processing receives this rotation speed of the fan sensing signal, according to presetting Rule of judgment to produce this fault-signal.
The invention provides a kind of fault warning method of the malfunction in order to the display plane display, this method may further comprise the steps:
Lamp tube status signal with a plurality of fluorescent tubes of a backlight module in this flat-panel screens is connected to an abnormity detecting device;
Utilize this abnormity detecting device to determine according to a proper method whether this lamp tube status signal shows that a certain fluorescent tube in this backlight module breaks down, to produce a fault-signal;
Utilize this abnormal signal to transmit receiver and receive this fault-signal, and convert a failure message with appropriate format to, see through network and be sent to a long-range take over party; And
This take over party can see through network and transmit a steering order to this flat-panel screens, reaches the function of two-way passback.
In the method, these fluorescent tubes of each of this backlight module connect a high-voltage power supply, and two are connected in series electric capacity being connected in parallel with this high-voltage power supply junction, and the voltage at these two capacitance series places is this lamp tube status signal.
In the method, this abnormity detecting device comprises an analog-to-digital converter and a controller, this analog-to-digital converter becomes a digital signal with this lamp tube status conversion of signals, after this controller receives this digital signal, carry out a corresponding default processing operation according to this proper method, to produce this fault-signal.
This proper method is a Filtering Processing, comprises that carrying out a digital filtering handled and should defaultly handle operation, produces rub-out signal to avoid the outside noise influence.
In the method, this digital filtering is handled and is comprised with a counter and cooperate an internal clocking or external reference clock, the time of this digital signal of accumulative total, when this cumulative time surpasses a critical value, judge that this digital signal is a useful signal, and produce relative fault-signal, and when this cumulative time does not surpass this critical value, judge that this digital signal is an invalid signals, thereby do not produce fault-signal.
In the method, this barrier detector can be a microprocessor, and this little processing has simulates to the digital conversion function, and carries out a built-in firmware program that corresponds to this Filtering Processing, defaultly handles operation to finish this.
The invention has the beneficial effects as follows: described display is directly informed failure message the message of maintenance center fluorescent tube fault, so that real-time maintenance mechanism to be provided.The user mode of the present flat-panel screens of take over party is initiatively detected and notified to this display in addition, makes things convenient for the take over party to carry out dynamic surveillance, and then can effectively keep in repair when the flat-panel screens fluorescent tube breaks down.Method by failure warning reaches shortening malfunction notification time, the purpose of high efficiency maintenance mechanism and real-time monitoring system.
Description of drawings
But Fig. 1 is the system schematic of the flat-panel screens of demonstration first embodiment of the invention failure warning.
But Fig. 2 is the synoptic diagram of the flat-panel screens of demonstration first embodiment of the invention failure warning.
But Fig. 3 is the system schematic of the flat-panel screens of demonstration second embodiment of the invention failure warning.
But Fig. 4 is the system schematic of the flat-panel screens of demonstration third embodiment of the invention failure warning.
But Fig. 5 is the system schematic of the flat-panel screens of demonstration fourth embodiment of the invention failure warning.
Embodiment
Below cooperate graphic and element numbers is done more detailed description to embodiments of the present invention, those skilled in the art can be implemented after studying this instructions carefully according to this.
With reference to figure 1, but the system schematic of the flat-panel screens of first embodiment of the invention failure warning.As shown in Figure 1, this system comprises a flat-panel screens 10, a network 20 and a control center (CTC) 30, wherein but this flat-panel screens 10 has the function of failure warning, and comprises that a backlight module 12, an abnormity detecting device 14 and an abnormal signal transmit receiver 16.Be noted that only to demonstrate the assembly relevant in graphic, do not demonstrate other well-known assembly,, that is,, do not influence the following description though this flat-panel screens 10 also comprises many assemblies with convenient explanation content of the present invention with feature of the present invention.
As shown in Figure 1, this abnormity detecting device 14 can be detected the fluorescent tube signal LS of backlight module 12, and produce lamp tube status signal LPS to microprocessor (MCU) 19, this microprocessor 19 judges by suitable mode whether the fluorescent tube of backlight module 12 is unusual, such as decide with this voltage of signals size light whether luminance shortage, extinguish or glimmer, and carry out the automatic fault analysis and move, and then produce fault-signal ERR to abnormal signal transmission receiver 16 with debug.Usually, fluorescent tube signal LS is a simulating signal, so this abnormity detecting device 14 has the analog signal conversion function, in order to produce the lamp tube status signal LPS of digital signal.This abnormal signal transmits receiver 16 and receives fault-signal ERR, and warp suitably processing produces failure message ERRINF and sends out through network 20, and control center 30 receives the receiving end failure message ERRINF_R of automatic network 20.Be noted that this failure message ERRINF can be a network package, include this fault-signal ERR, on network, transmit in order to convenient.In addition, this network 20 includes spider lines and wireless network.This control center 30 carries out necessary processing according to this receiving end failure message ERRINF_R, such as record data, send news in brief or email notification maintenance center or notify other related personnel, to get rid of and to solve this malfunction.
With reference to figure 2, but shown the synoptic diagram of the flat-panel screens of first embodiment of the invention failure warning.Direct current in the backlight module 12 is delivered the AC power that direct supply that convertor transformer 110 will be generally 24V converts high pressure to, such as 300V, gives fluorescent tube 120 with power supply, and wherein high-pressure side can connect resistance R.This fluorescent tube 120 can be general cold cathode fluorescent lamp (CCFL), but the scope of the invention is not as limit.This fluorescent tube 120 and the junction of high-voltage power supply general also di-capacitor C 1 and C2, and the voltage of the tie point of capacitor C 1 and C2, promptly lamp tube status signal LPS is used as the input signal that detecting fault is used by abnormity detecting device 14.Its principle of operation is, when fluorescent tube 120 normal operations, fluorescent tube signal LS is a ground connection, and when fluorescent tube 120 abnormal operation, such as extinguishing, fluorescent tube signal LS is the voltage that has greater than 0V, its voltage swing apparent capacity C1 and C2 and decide, the i.e. voltage swing of this fluorescent tube signal LS dividing potential drop that is high-voltage power supply on capacitor C 1 and C2.
This abnormity detecting device 14 comprises an analog-to-digital converter 210 and a controller 230, and wherein this analog-to-digital converter 210 converts the fluorescent tube signal LS of simulating signal digital signal to and sends controller 230 to.After controller 230 received this digital signal, the processing operation of presetting was handled such as carrying out digital filtering, influences this digital signal to avoid outside noise, and produces lamp tube status signal LPS.The general practice is, utilize counter to cooperate internal clocking or external reference clock, this digital signal is counted, when this count value surpasses a certain preset critical, then be considered as effective fault-signal, and output lamp tube status signal LPS, that is this digital signal must prolong a certain period and abovely just be regarded as useful signal, otherwise be considered as invalid noise.
Above-mentioned abnormity detecting device 14 can be incorporated in the microprocessor 19, i.e. this little processing has simulates to the digital conversion function, and utilizes the firmware program to carry out aforesaid operations, and realizes the hardware operation of controller 230 with the firmware program.
This abnormal signal transmits receiver 16 and comprises that a data converter 310 and transmits interface 330, wherein this data converter 310 converts the fault-signal ERR of input to the data of appropriate format, require the package form such as the network transmission protocol, then transmit interface 330 and receive these data and on network 20, send out with failure message ERRINF.Be noted that the present invention does not limit the form of failure message ERRINF, as long as can transmit and receiving end can receive and separate and reads the fault message that this information comprises through corresponding network.
With reference to figure 3, but the system schematic of the flat-panel screens of second embodiment of the invention failure warning.Fig. 3 demonstrates optical sensing module (LSM) 13, brightness in order to the detecting fluorescent tube, and generation lighting tube brightness signal LSS sends microprocessor 19 to, by the performed firmware program of microprocessor 19, judge whether lighting tube brightness is unusual, and when generation is unusual, export fault-signal ERR, subsequent operation does not repeat them here as first embodiment.Therefore, present embodiment can detect the unusual situation of lighting tube brightness, and real-time informing control center 30.
With reference to figure 4, but the system schematic of the flat-panel screens of third embodiment of the invention failure warning.Fig. 4 demonstrates temperature sensing module (TSM) 17, temperature in order to the detecting display interior, and generation temperature signal TSS sends microprocessor 19 to, by the performed firmware program of microprocessor 19, whether the temperature of judging display interior is unusual, such as whether overheated, and exports fault-signal ERR when generation is unusual, subsequent operation does not repeat them here as first embodiment.Therefore, present embodiment can detect the situation of display interior temperature anomaly, and real-time informing control center 30.
With reference to figure 5, but the system schematic of the flat-panel screens of fourth embodiment of the invention failure warning.Fig. 5 demonstrates rotation speed of the fan sensing module (FSM) 18, in order to the detecting rotation speed of the fan, and generation fan rotating speed signals FSS sends microprocessor 19 to, by the performed firmware program of microprocessor 19, judge whether rotation speed of the fan is unusual, such as whether too soon or too slow, and output fault-signal ERR when unusual is taking place, subsequent operation does not repeat them here as first embodiment.Therefore, present embodiment can detect the unusual situation of rotation speed of the fan, and real-time informing control center 30.
Be noted that, flat-panel screens of the present invention has by control center's 30 transmission instructions to flat-panel screens 10 functions, because the abnormal signal of flat-panel screens 10 transmits receiver 16 tool transmitted in both directions functions, promptly send a signal to the network 20 except that above-mentioned, also can receive the signal of network 20, and send suitable module to and carry out predetermined registration operation, such as closing all fluorescent tubes by backlight module simultaneously or closing fan and rotate.Therefore, the invention provides the flat-panel screens of function with bi-directional transmission of information.
In sum, but providing, the flat-panel screens of failure warning of the present invention has detecting fluorescent tube operation exception, lighting tube brightness is unusual, the function that display interior temperature anomaly and rotation speed of the fan are unusual, and the dependent failure message is sent to control center by flat-panel screens, maintenance center or managerial personnel, allow control center or maintenance center send the maintenance personal to change operation fast to the scene, improve the efficient of maintenance, control center or maintenance center can be assigned necessary instruction and be given display simultaneously, carry out necessary predetermined registration operation by display, more efficient real-time monitoring and control is provided.
The above only is in order to explain preferred embodiment of the present invention; be not that attempt is done any pro forma restriction to the present invention according to this; therefore, all have in that identical invention spirit is following do relevant any modification of the present invention or change, all must be included in the category that the invention is intended to protect.
Claims (14)
1. but the flat-panel screens of a failure warning, comprise a backlight module, this backlight module comprises a plurality of fluorescent tubes, each these fluorescent tube connects a high-voltage power supply, and two be connected in series electric capacity being connected in parallel with this high-voltage power supply junction, the voltage at these two capacitance series places is a fluorescent tube signal, it is characterized in that
But the flat-panel screens of being somebody's turn to do failure warning further comprises an abnormity detecting device, a microprocessor and an abnormal signal and transmits receiver, this abnormity detecting device receives the fluorescent tube signal that is sent by this backlight module, and convert a digital signal to, and determine according to a proper method whether this fluorescent tube signal shows that a certain fluorescent tube in this backlight module breaks down, to produce a lamp tube status signal;
This little processing receives this lamp tube status signal, according to presetting Rule of judgment to produce a fault-signal;
This abnormal signal transmits receiver and receives this fault-signal, and convert a failure message with appropriate format to, be sent to cable network or wireless network, and this abnormal signal transmission receiver can receive the command information that cable network or wireless network transmit, to carry out necessary predetermined registration operation, reach the function of two-way passback according to this command information.
2. but the flat-panel screens of failure warning as claimed in claim 1, it is characterized in that, this abnormity detecting device comprises an analog-to-digital converter and a controller, this analog-to-digital converter becomes a digital signal with this lamp tube status conversion of signals, after this controller receives this digital signal, carry out a corresponding default processing operation according to this proper method, to produce this fault-signal.
3. but the flat-panel screens of failure warning as claimed in claim 2 is characterized in that, this proper method is a Filtering Processing, comprises that carrying out a digital filtering handled and should defaultly handle operation, produces rub-out signal to avoid the outside noise influence.
4. but the flat-panel screens of failure warning as claimed in claim 3, it is characterized in that, this digital filtering is handled and is comprised with a counter and cooperate an internal clocking or external reference clock, the time of this digital signal of accumulative total, when this cumulative time surpasses a critical value, judge that this digital signal is a useful signal, and produce relative fault-signal, and when this cumulative time does not surpass this critical value, judge that this digital signal is an invalid signals, thereby do not produce fault-signal.
5. but the flat-panel screens of failure warning as claimed in claim 1, it is characterized in that this abnormity detecting device can be a microprocessor, this little processing has simulates to the digital conversion function, and carry out a built-in firmware program that corresponds to this Filtering Processing, defaultly handle operation to finish this.
6. but the flat-panel screens of failure warning as claimed in claim 1, it is characterized in that, further comprise an optical sensing module, luminosity in order to the detecting fluorescent tube, and produce a light sensing signal and send this microprocessor to, this little processing receives this light sensing signal, according to presetting Rule of judgment to produce this fault-signal.
7. but the flat-panel screens of failure warning as claimed in claim 1, it is characterized in that, further comprise a temperature sensing module, in order to detect the temperature of a display interior in this flat-panel screens, and produce a temperature sensing signal and send this microprocessor to, this little processing receives this temperature sensing signal, according to presetting Rule of judgment to produce this fault-signal.
8. but the flat-panel screens of failure warning as claimed in claim 1, it is characterized in that, further comprise a rotation speed of the fan sensing module, in order to detect the rotating speed of a fan in this flat-panel screens, and produce a rotation speed of the fan sensing signal and send this microprocessor to, this little processing receives this rotation speed of the fan sensing signal, according to presetting Rule of judgment to produce this fault-signal.
9. the fault warning method in order to the malfunction of display plane display is characterized in that, this method may further comprise the steps:
Lamp tube status signal with a plurality of fluorescent tubes of a backlight module in this flat-panel screens is connected to an abnormity detecting device;
Utilize this abnormity detecting device to determine according to a proper method whether this lamp tube status signal shows that a certain fluorescent tube in this backlight module breaks down, to produce a fault-signal;
Utilize this abnormal signal to transmit receiver and receive this fault-signal, and convert a failure message with appropriate format to, see through network and be sent to a long-range take over party; And
This take over party can see through network and transmit a steering order to this flat-panel screens, reaches the function of two-way passback.
10. the method for failure warning as claimed in claim 9, it is characterized in that, these fluorescent tubes of each of this backlight module connect a high-voltage power supply, and two are connected in series electric capacity being connected in parallel with this high-voltage power supply junction, and the voltage at these two capacitance series places is this lamp tube status signal.
11. the method for failure warning as claimed in claim 9, it is characterized in that, this abnormity detecting device comprises an analog-to-digital converter and a controller, this analog-to-digital converter becomes a digital signal with this lamp tube status conversion of signals, after this controller receives this digital signal, carry out a corresponding default processing operation according to this proper method, to produce this fault-signal.
12. the method for failure warning as claimed in claim 9 is characterized in that, this proper method is a Filtering Processing, comprises that carrying out a digital filtering handled and should defaultly handle operation, produces rub-out signal to avoid the outside noise influence.
13. the method for failure warning as claimed in claim 12, it is characterized in that, this digital filtering is handled and is comprised with a counter and cooperate an internal clocking or external reference clock, the time of this digital signal of accumulative total, when this cumulative time surpasses a critical value, judge that this digital signal is a useful signal, and produce relative fault-signal, and when this cumulative time does not surpass this critical value, judge that this digital signal is an invalid signals, thereby do not produce fault-signal.
14. the method for failure warning as claimed in claim 9, it is characterized in that this barrier detector can be a microprocessor, this little processing has simulates to the digital conversion function, and carry out a built-in firmware program that corresponds to this Filtering Processing, defaultly handle operation to finish this.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810149597A CN101672989A (en) | 2008-09-12 | 2008-09-12 | Fault warning plane display and fault warning method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810149597A CN101672989A (en) | 2008-09-12 | 2008-09-12 | Fault warning plane display and fault warning method thereof |
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| CN101672989A true CN101672989A (en) | 2010-03-17 |
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| CN200810149597A Pending CN101672989A (en) | 2008-09-12 | 2008-09-12 | Fault warning plane display and fault warning method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107943215A (en) * | 2017-12-11 | 2018-04-20 | 大连锐进科技发展有限公司 | A kind of computer display screen with warning function |
| CN115065933A (en) * | 2022-05-10 | 2022-09-16 | 宁波华讯通信服务有限公司 | Video display method, system, terminal equipment and storage medium |
| CN115140134A (en) * | 2022-09-01 | 2022-10-04 | 卡斯柯信号(北京)有限公司 | Method and device for testing whether head screen is finished or not |
-
2008
- 2008-09-12 CN CN200810149597A patent/CN101672989A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107943215A (en) * | 2017-12-11 | 2018-04-20 | 大连锐进科技发展有限公司 | A kind of computer display screen with warning function |
| CN115065933A (en) * | 2022-05-10 | 2022-09-16 | 宁波华讯通信服务有限公司 | Video display method, system, terminal equipment and storage medium |
| CN115140134A (en) * | 2022-09-01 | 2022-10-04 | 卡斯柯信号(北京)有限公司 | Method and device for testing whether head screen is finished or not |
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Open date: 20100317 |