CN102590611B - Method for avoiding abnormal display, adjusting system and electric meter - Google Patents
Method for avoiding abnormal display, adjusting system and electric meter Download PDFInfo
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- CN102590611B CN102590611B CN201210070054.6A CN201210070054A CN102590611B CN 102590611 B CN102590611 B CN 102590611B CN 201210070054 A CN201210070054 A CN 201210070054A CN 102590611 B CN102590611 B CN 102590611B
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Abstract
The invention provides a method for avoiding abnormal display, an adjusting system and an electric meter. The method includes firstly adjusting a power supply to supply power for a display unit, recording the voltage of the power supply and the adjusting range of the power supply when the display unit can display normally, and then adjusting the current voltage of the power supply on the basis of the current voltage of the power supply, the voltage of the power supply and the adjusting range when the display unit display normally so that the display unit can currently display normally. According to the method, problems of abnormal displays such as ghosting and the like caused by an unstable power supply are avoided. Further, the intelligence electric meter with the adjusting system is capable of solving problems such as ghosting display and the like.
Description
Technical field
The present invention relates to a kind of demonstration field, particularly relate to a kind of avoid showing abnormal method, regulating system and ammeter.
Background technology
Intelligent electric meter of today, generally adopt from electrical network 220V after transformer the mode of rectification again to power, simultaneously in order to guarantee that the data of ammeter record can be kept and show after electric network power-fail, also adopt battery after electric network source power down for ammeter provides power supply.For example, for comprising the ammeter that operating voltage is the SOC chip of 3.3V, line voltage is exported 3.3v supply voltage and is offered SOC chip after overcommutation conventionally, by described SOC chip, drives liquid crystal display; When electric network source power down, by the battery of 3.6v to SOC chip power supply.
Yet, when actual production ammeter, owing to allowing have ± 5% deviation of each comfortable contrast while showing data of different ammeters, the output voltage of also allowing different each self-contained power supply chips of ammeter has ± 5% deviation, otherness between the SOC chip that different ammeters comprise if consider again, the otherness of producing in enormous quantities between each ammeter of may be up to ± 10%, will cause thus the volume production stage after ammeter assembling, and be switched in battery powered situation in electric network source power down, have part ammeter because the driving voltage of operating voltage and liquid crystal display does not mate, and cause such as liquid crystal display, occur that ghost etc. shows abnormal occurrence.
Therefore, in the urgent need to addressly cause showing abnormal problem because of power supply instability.
Summary of the invention
The shortcoming of prior art, the object of the present invention is to provide a kind of abnormal method and system of avoiding showing in view of the above, to avoid causing the showing problems such as abnormal because power supply is unstable.
Another object of the present invention is to provide a kind of demonstration without abnormal ammeters of demonstration such as ghosts.
For achieving the above object and other relevant objects, the invention provides a kind of abnormal method of avoiding showing, it at least comprises step:
A) regulate power supply to display unit power supply, and record described display unit and can show the voltage of power supply when normal and the amplitude of accommodation that power supply is conditioned; And
1) current voltage based on power supply, described display unit can show the voltage of power supply when normal and the current voltage that the amplitude of accommodation regulates described power supply, so as described display unit current can show normal.
Preferably, described step a) also comprises: based on the first command information, regulate power supply to display unit power supply, and record described display unit and can show the voltage of power supply when normal and the amplitude of accommodation that power supply is conditioned.
Preferably, described step 1) also comprise: the current voltage that obtains described power supply based on the second command information, and the current voltage of the power supply based on obtaining, described display unit can show that the voltage of power supply when normal and the amplitude of accommodation that power supply is conditioned determine the current amplitude of accommodation, and based on the described current amplitude of accommodation, regulate the current voltage of described power supply so that described display unit current can show normal.
The invention provides a kind of avoiding and show abnormal regulating system, it at least comprises:
The first regulon, for regulating power supply to display unit power supply, and records described display unit and can show the voltage of power supply when normal and the amplitude of accommodation that power supply is conditioned; And
The second regulon, can show the voltage of power supply when normal and the current voltage that the amplitude of accommodation regulates described power supply for the current voltage based on power supply, described display unit, so as described display unit current can show normal.
Preferably, described the first regulon comprises: the first sub-regulon, for regulating power supply based on the first command information to display unit power supply, and record described display unit and can show the voltage of power supply when normal and the amplitude of accommodation that power supply is conditioned.
Preferably, described the second regulon comprises: the second sub-regulon, for obtain the current voltage of described power supply based on the second command information, and the current voltage of the power supply based on obtained, described display unit can show that the voltage of power supply when normal and the amplitude of accommodation that power supply is conditioned determine the current amplitude of accommodation, and based on the described current amplitude of accommodation, regulate the current voltage of described power supply so that described display unit current can show normal.
The present invention also provides a kind of intelligent electric meter, and it comprises: aforesaid regulating system.
As mentioned above, of the present invention avoiding shows abnormal method, regulating system and ammeter, has following beneficial effect: can avoid the demonstration ghost that causes because power supply is unstable etc. to show abnormal problem.
Accompanying drawing explanation
Fig. 1 is shown as the process flow diagram of avoiding showing abnormal method of the present invention.
Fig. 2 is shown as intelligent electric meter schematic diagram of the present invention.
Fig. 3 is shown as the circuit diagram of the display drive circuit that the intelligent electric meter shown in Fig. 2 comprises.
Fig. 4 is shown as the abnormal regulating system schematic diagram of avoiding showing of the present invention.
Element numbers explanation
1 regulating system
11 first regulons
111 first sub-regulons
12 second regulons
121 second sub-regulons
2 intelligent electric meters
21 storage unit
22 display drive circuits
23 UART interfaces
24 display screens
3 computing machines
S1, S2 step
Embodiment
Below, by specific instantiation explanation embodiments of the present invention, those skilled in the art can understand other advantages of the present invention and effect easily by the disclosed content of this instructions.The present invention can also be implemented or be applied by other different embodiment, and the every details in this instructions also can be based on different viewpoints and application, carries out various modifications or change not deviating under spirit of the present invention.
Refer to Fig. 1 to Fig. 4.It should be noted that, the diagram providing in the present embodiment only illustrates basic conception of the present invention in a schematic way, satisfy and only show with assembly relevant in the present invention in graphic but not component count, shape and size drafting while implementing according to reality, during its actual enforcement, kenel, quantity and the ratio of each assembly can be a kind of random change, and its assembly layout kenel also may be more complicated.
Fig. 1 shows the process flow diagram of avoiding showing abnormal method of the present invention.Wherein, method of the present invention is mainly carried out by regulating system.This regulating system is the device such as application module, operating system, processing controller etc. that is arranged in smart machine and can realizes the present invention program.Wherein, this smart machine includes but not limited to: intelligent electric meter etc.
In step S1, described regulating system regulates power supply to display unit power supply, and records described display unit and can show the voltage of power supply when normal and the amplitude of accommodation that power supply is conditioned.
Wherein, described display unit comprises and anyly can exist may cause showing information because of the spread of voltage of power supply time ghost etc. to show preferably, to include but not limited to abnormal display unit: be installed in display unit in intelligent electric meter etc.
Wherein, described power supply, for the power supply of electric energy is provided to described display unit, includes but not limited to: the power supply by line voltage after transformation rectification; As supplying cell of power supply etc.For example, for the display unit of the SOC chip drives by 3.3v, described power supply comprises by line voltage 3.3v power supply after transformation rectification and the supplying cell of 3.6v.The mode that described regulating system is obtained the voltage of described power supply includes but not limited to: by the voltage of described power supply being carried out to analog-to-digital analog to digital conversion circuit provides etc.
Particularly, after the mode of described regulating system by regulating circuit resistance regulated power supply, offer again described display unit, and record described display unit and can show the voltage of power supply when normal and the amplitude of accommodation that power supply is conditioned.
As a kind of preferred, described regulating system regulates power supply when the system is first powered on automatically to display unit power supply, and the observation personnel's such as interfaces such as man-machine interfaces of the smart machine based on under self indication information records described display unit and can show the voltage of power supply when normal and the amplitude of accommodation that power supply is conditioned.Wherein, the mode of described regulating system by regulating circuit resistance offers described display unit after power supply is regulated again.
For example, described regulating system when display unit Y1 powers on first by the branch road xa that to select respectively the power supply amplitude of accommodation be Va, the branch road xb that is Vb to the power supply amplitude of accommodation and the branch road xc that is Vc to the power supply amplitude of accommodation are communicated with display unit Y1, after being regulated, power supply offers described display unit Y1, when observation personnel think when selecting branch road xa, the image optimum that described display unit Y1 is shown, this observation personnel of described regulating system based on from man-machine interface indication information can show the voltage of power supply when normal using described display unit Y1 supply voltage " V1 " now as display unit Y1, using the amplitude of accommodation " Va " as display unit Y1, can show that the amplitude of accommodation that power supply when normal is conditioned gives record.
Preferred as another kind, the method according to this invention, described step S1 also comprises step S1 ' (not giving diagram).
In step S1 ', described regulating system regulates power supply based on the first command information to display unit power supply, and the indication information based on observation personnel records described display unit and can show the voltage of power supply when normal and the amplitude of accommodation that power supply is conditioned.Wherein, described regulating system regulates power supply by the mode of regulating circuit resistance.
Wherein, the mode of indication information that described regulating system is obtained the first command information and observation personnel includes but not limited to:
1) communication interface being connected with external unit comprising by the smart machine under self obtains, and described external unit includes but not limited to: computing machine, human-computer interaction devices such as keyboard, mouse, speech ciphering equipment, telepilot etc.
For example, the first command information of the observation personnel that the computing machine of described regulating system based on self communication provides is rewritten regulated value that storage unit stores with regulating circuit resistance, and then offer described display unit after power supply is regulated, and the observation personnel's that provide based on this computing machine again indication information records described display unit and can show the voltage of power supply when normal and the amplitude of accommodation that power supply is conditioned again.
As shown in Figure 2, it is a kind of preferred intelligent electric meter schematic diagram.Described intelligent electric meter 2 comprises: regulating system 1, storage unit 21, display drive circuit 22, UART interface 23 and display screen 24.Wherein, the circuit structure of described display drive circuit 22 as shown in Figure 3, voltage VLCD shown in Fig. 3 is the voltage of the power supply of described regulating system 1 access, the bias voltage that Vbias controls for the regulated value of being stored by storage unit 21, thus, the operating voltage that offers display screen 24 is voltage VLCD-bias voltage Vbias.The first command information of the observation personnel that provide when the computing machine 3 of described regulating system 1 based on being connected to UART interface 23 is rewritten the regulated value that described storage unit 21 is stored, the regulated value that the bias voltage control circuit that display drive circuit 22 comprises is stored based on described storage unit 21 regulates variable resistor VR, thereby change bias voltage Vbias, make the operating voltage=voltage VLCD-bias voltage Vbias that offers display screen 24 that corresponding change also occur.When the voltage of power supply is 3.3v, i.e. voltage VLCD=3.3v, is 0100b if described regulating system 1 is rewritten the regulated value that described storage unit 21 stores, amplitude=2 that the predetermined 1bit of bias voltage Vbias=0100b* regulates
2* 0.05=0.2v, offer operating voltage=voltage VLCD-bias voltage Vbias=3.3-0.2=3.1v of display screen 24, if now observation personnel observe the now shown image optimum of display screen 24, this observation personnel of described regulating system 1 based on being sent into by URAT interface command information can show the amplitude of accommodation that power supply when normal is conditioned using current regulated value 0100b as described display unit 24, and the current supply voltage 3.3v that analog to digital conversion circuit is provided can show the voltage of power supply when normal as described display unit 24.
2) by the smart machine configuration under self, such as human-computer interaction devices such as buttons, obtain.For example, the signal that the adjusting button on the smart machine surface of described regulating system under self sends while being pressed is as the first command information, and the signal sending when the ACK button on the smart machine surface under self is pressed is as observation personnel's indication information etc.
It should be noted that, it should be appreciated by those skilled in the art that described abovely only just to list, but not limitation of the present invention, in fact, the mode of any indication information that obtains the first command information and observation personnel all within the scope of the present invention.
In step S2, current voltage, the described display unit of described regulating system based on power supply can show the voltage of power supply when normal and the current voltage that the amplitude of accommodation regulates described power supply, so as described display unit current can show normal.
Wherein, the mode that described regulating system is obtained the current voltage of power supply includes but not limited to: by the voltage of described power supply being carried out to analog-to-digital analog to digital conversion circuit provides etc.
As a kind of preferred, described regulating system is at described display unit duration of work, in the schedule time or periodically obtain the current voltage of power supply, and the current voltage of the power supply based on obtaining, described display unit can show that the voltage of power supply when normal and the amplitude of accommodation that power supply is conditioned determine the current amplitude of accommodation, and based on the described current amplitude of accommodation, regulate the current voltage of described power supply so that described display unit current can show normal.
For example, at display unit Y1 duration of work, described regulating system read the voltage of power supply every 5 minutes, if the current voltage of current detection power supply is V1+Vc-Va, the described display unit Y1 recording in step S1 can show that the voltage of power supply when normal is V1, the amplitude of accommodation is Va (being the described display unit Y1 voltage that can show power supply when operating voltage when normal=can show is normal-can the show amplitude of accommodation=V1-Va when normal), described regulating system determines that current voltage-display unit Y1 of the current amplitude of accommodation=power supply can show operating voltage=(V1+Vc-Va)-(V1-Va)=Vc when normal, described regulating system selects the branch road x13 that is Vc to the power supply amplitude of accommodation to be connected with display unit Y1, so that by after power supply dividing potential drop, offer described display unit Y1, so that the current voltage-amplitude of accommodation=V1-Va of operating voltage=power supply of display unit Y1, can show that with aforementioned display unit Y1 operating voltage when normal is identical.
Preferred as another kind, described regulating system is obtained the current voltage of described power supply based on the second command information, and the current voltage of the power supply based on obtaining, described display unit can show that the voltage of power supply when normal and the amplitude of accommodation that power supply is conditioned determine the current amplitude of accommodation, and based on the described current amplitude of accommodation, regulate the current voltage of described power supply so that described display unit current can show normal.
Wherein, described regulating system obtains the mode of the second command information and the mode of the indication information that described regulating system is obtained the first command information and observation personnel is same or similar, and is contained in by reference this, no longer describes in detail.
For example, regulating system 1 as shown in Figure 2, at display screen 24 duration of works, the current voltage that reads the power supply that analog to digital conversion circuit exports at 11:00 is 3.7v, the described display screen 24 that described regulating system 1 records in step S1 can show that the amplitude of accommodation that power supply when normal is conditioned is 0100b, described display screen 24 can show that the voltage of power supply when normal is 3.3v, described regulating system 1 is determined amplitude=0100b+ (3.7-3.3)/0.05=1100b that the amplitude of accommodation that the current amplitude of accommodation=described display screen 24 can show power supply when normal and be conditioned+(current voltage of power supply-described display screen 24 can show the voltage of power supply when normal)/predetermined 1bit regulates, described regulating system 1 writes described storage unit 21 by the described amplitude of accommodation " 1100b ", thus, the amplitude of accommodation " 1100b " that the bias voltage control circuit that described display drive circuit 22 comprises is stored based on described storage unit 21 regulates variable resistor VR, thereby make bias voltage Vbias be adjusted to 0.6v, the operating voltage that makes to offer display screen 24 still can show that with aforementioned display screen 24 operating voltage (3.1v) when normal is identical, therefore described display screen 24 still shows normally.
Refer to Fig. 4, it is the abnormal regulating system schematic diagram of avoiding showing of the present invention.Wherein, described regulating system 1 comprises: the first regulon 11 and the second regulon 12.
Described the first regulon 11 regulates power supplies to display unit power supply, and records described display unit and can show the voltage of power supply when normal and the amplitude of accommodation that power supply is conditioned.
Wherein, described display unit comprises and anyly can exist may cause showing information because of the spread of voltage of power supply time ghost etc. to show preferably, to include but not limited to abnormal display unit: be installed in display unit in intelligent electric meter etc.
Wherein, described power supply, for the power supply of electric energy is provided to described display unit, includes but not limited to: the power supply by line voltage after transformation rectification; As supplying cell of power supply etc.For example, for the display unit of the SOC chip drives by 3.3v, described power supply comprises by line voltage 3.3v power supply after transformation rectification and the supplying cell of 3.6v.The mode that described the first regulon 11 obtains the voltage of described power supply includes but not limited to: by the voltage of described power supply being carried out to analog-to-digital analog to digital conversion circuit provides etc.
Particularly, after the mode of described the first regulon 11 by regulating circuit resistance regulated power supply, offer again described display unit, and record described display unit and can show the voltage of power supply when normal and the amplitude of accommodation that power supply is conditioned.
As a kind of preferred, described the first regulon 11 regulates power supply when the system is first powered on automatically to display unit power supply, and the observation personnel's such as interfaces such as man-machine interfaces of the smart machine based on under self indication information records described display unit and can show the voltage of power supply when normal and the amplitude of accommodation that power supply is conditioned.Wherein, the mode of described the first regulon 11 by regulating circuit resistance offers described display unit after power supply is regulated again.
For example, described the first regulon 11 when display unit Y1 powers on first by the branch road xa that to select respectively the power supply amplitude of accommodation be Va, the branch road xb that is Vb to the power supply amplitude of accommodation and the branch road xc that is Vc to the power supply amplitude of accommodation are communicated with display unit Y1, after being regulated, power supply offers described display unit Y1, when observation personnel think when selecting branch road xa, the image optimum that described display unit Y1 is shown, the described display unit Y1 that this observation personnel of described the first regulon 11 based on from man-machine interface indication information provides analog to digital conversion circuit supply voltage " V1 " now can show the voltage of power supply when normal as display unit Y1, using the amplitude of accommodation " Va " as display unit Y1, can show that the amplitude of accommodation that power supply when normal is conditioned gives record.
Preferred as another kind, described the first regulon 11 also comprises the first sub-regulon 111.
Described the first sub-regulon 111 regulates power supply based on the first command information to display unit power supply, and the indication information based on observation personnel records described display unit and can show the voltage of power supply when normal and the amplitude of accommodation that power supply is conditioned.Wherein, described the first sub-regulon 111 regulates power supply by the mode of regulating circuit resistance.
Wherein, the mode of indication information that described the first sub-regulon 111 obtains the first command information and observation personnel includes but not limited to:
1) communication interface being connected with external unit comprising by the smart machine under self obtains, and described external unit includes but not limited to: computing machine, human-computer interaction devices such as keyboard, mouse, speech ciphering equipment, telepilot etc.
For example, the first command information of the observation personnel that the computing machine of described the first sub-regulon 111 based on self communication provides is rewritten regulated value that storage unit stores with regulating circuit resistance, and then offer described display unit after power supply is regulated, and the observation personnel's that provide based on this computing machine again indication information records described display unit and can show the voltage of power supply when normal and the amplitude of accommodation that power supply is conditioned again.
As shown in Figure 2, it is a kind of preferred intelligent electric meter schematic diagram.Described intelligent electric meter 2 comprises: regulating system 1, storage unit 21, display drive circuit 22, UART interface 23 and display screen 24.Wherein, the first regulon 11 that described regulating system 1 comprises comprises the first sub-regulon 111; The circuit structure of described display drive circuit 22 as shown in Figure 3, voltage VLCD shown in Fig. 3 is the voltage of the power supply of described regulating system 1 access, the bias voltage that Vbias controls for the regulated value of being stored by storage unit 21, thus, the operating voltage that offers display screen 24 is voltage VLCD-bias voltage Vbias.The first command information of the observation personnel that provide when the computing machine 3 of described the first sub-regulon 111 based on being connected to UART interface 23 is rewritten the regulated value that described storage unit 21 is stored, the regulated value that the bias voltage control circuit that display drive circuit 22 comprises is stored based on described storage unit 21 regulates variable resistor VR, thereby change bias voltage Vbias, make the operating voltage=voltage VLCD-bias voltage Vbias that offers display screen 24 that corresponding change also occur.When the voltage of power supply is 3.3v, i.e. voltage VLCD=3.3v, is 0100b if described the first sub-regulon 111 is rewritten the regulated value that described storage unit 21 stores, amplitude=2 that the predetermined 1bit of bias voltage Vbias=0100b* regulates
2* 0.05=0.2v, offer operating voltage=voltage VLCD-bias voltage Vbias=3.3-0.2=3.1v of display screen 24, if now observation personnel observe the now shown image optimum of display screen 24, this observation personnel of described the first sub-regulon 111 based on being sent into by URAT interface command information can show the amplitude of accommodation that power supply when normal is conditioned using current regulated value 0100b as described display unit 24, the current supply voltage 3.3v that analog to digital conversion circuit is provided can show the voltage of power supply when normal as described display unit 24.
2) by the smart machine configuration under self, such as human-computer interaction devices such as buttons, obtain.For example, the signal that the adjusting button on described the first smart machine surface of sub-regulon 111 under self sends while being pressed is as the first command information, and the signal sending when the ACK button on the smart machine surface under self is pressed is as observation personnel's indication information etc.
It should be noted that, it should be appreciated by those skilled in the art that described abovely only just to list, but not limitation of the present invention, in fact, the mode of any indication information that obtains the first command information and observation personnel all within the scope of the present invention.
Current voltage, the described display unit of described the second regulon 12 based on power supply can show the voltage of power supply when normal and the current voltage that the amplitude of accommodation regulates described power supply, so as described display unit current can show normal.
Wherein, the mode that described the second regulon 12 obtains the current voltage of power supply includes but not limited to: by the voltage of described power supply being carried out to analog-to-digital analog to digital conversion circuit provides etc.
As a kind of preferred, described the second regulon 12 is at described display unit duration of work, in the schedule time or periodically obtain the current voltage of power supply, and the current voltage of the power supply based on obtaining, described display unit can show that the voltage of power supply when normal and the amplitude of accommodation that power supply is conditioned determine the current amplitude of accommodation, and based on the described current amplitude of accommodation, regulate the current voltage of described power supply so that described display unit current can show normal.
For example, at display unit Y1 duration of work, described the second regulon 12 read the voltage of power supply every 5 minutes, if the current voltage of current detection power supply is V1+Vc-Va, the described display unit Y1 that described the first regulon 11 records can show that the voltage of power supply when normal is V1, the amplitude of accommodation is Va (being the described display unit Y1 voltage that can show power supply when operating voltage when normal=can show is normal-can the show amplitude of accommodation=V1-Va when normal), described the second regulon 12 determines that current voltage-display unit Y1 of the current amplitude of accommodation=power supplies can show operating voltage=(V1+Vc-Va)-(V1-Va)=Vc when normal, described the second regulon 12 selects the branch road x13 that is Vc to the power supply amplitude of accommodation to be connected with display unit Y1, so that by after power supply dividing potential drop, offer described display unit Y1, so that the current voltage-amplitude of accommodation=V1-Va of operating voltage=power supply of display unit Y1, can show that with aforementioned display unit Y1 operating voltage when normal is identical.
Preferred as another kind, described the second regulon 12 comprises the second sub-regulon 121.Described the second sub-regulon 121 obtains the current voltage of described power supply based on the second command information, and the current voltage of the power supply based on obtaining, described display unit can show that the voltage of power supply when normal and the amplitude of accommodation that power supply is conditioned determine the current amplitude of accommodation, and based on the described current amplitude of accommodation, regulate the current voltage of described power supply so that described display unit current can show normal.
Wherein, described the second sub-regulon 121 obtains the mode of the second command information and the mode of the indication information that described the first sub-regulon 111 obtains the first command information and observation personnel is same or similar, and is contained in by reference this, no longer describes in detail.
For example, the second regulon 12 as shown in Figure 2, it comprises the second sub-regulon 121, described the second sub-regulon 121 is at display screen 24 duration of works, the current voltage that reads the power supply that analog to digital conversion circuit exports at 11:00 is 3.7v, the described display screen 24 that described the first sub-regulon 111 records can show that the amplitude of accommodation that power supply when normal is conditioned is 0100b, described display screen 24 can show that the voltage of power supply when normal is 3.3v, described the second regulon 12 is determined amplitude=0100b+ (3.7-3.3)/0.05=1100b that the amplitude of accommodation that the current amplitude of accommodation=described display screen 24 can show power supply when normal and be conditioned+(current voltage of power supply-described display screen 24 can show the voltage of power supply when normal)/predetermined 1bit regulates, described the second regulon 12 writes described storage unit 21 by the described amplitude of accommodation " 1100b ", thus, the amplitude of accommodation " 1100b " that the bias voltage control circuit that described display drive circuit 22 comprises is stored based on described storage unit 21 regulates variable resistor VR, thereby make bias voltage Vbias be adjusted to 0.6v, the operating voltage that makes to offer display screen 24 still can show that with aforementioned display screen 24 operating voltage (3.1v) when normal is identical, therefore described display screen 24 still shows normally.
In sum, of the present inventionly avoid showing that abnormal method and regulating system are based on make the voltage that offers display unit keep stable to the control of power supply, and then make display unit can keep showing normally, the abnormal problems of demonstration such as demonstration ghost of avoiding appearance to cause because of spread of voltage.Thus, the intelligent electric meter that comprises regulating system of the present invention also there will not be the abnormal problems of demonstration such as demonstration ghost that cause because of spread of voltage.So the present invention has effectively overcome various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all can, under spirit of the present invention and category, modify or change above-described embodiment.Therefore, such as in affiliated technical field, have and conventionally know that the knowledgeable, not departing from all equivalence modifications that complete under disclosed spirit and technological thought or changing, must be contained by claim of the present invention.
Claims (9)
1. avoid showing an abnormal method, it is characterized in that, described in avoid showing that abnormal method at least comprises step:
A) regulate power supply to display unit power supply, and the voltage of the power supply of the described display unit of record can normally show time and the amplitude of accommodation that power supply is conditioned;
Describedly avoid showing that abnormal method also comprises:
1) voltage of the power supply of the current voltage based on power supply, the described display unit can normally show time and the current voltage that the amplitude of accommodation regulates described power supply, so as described display unit current can show normal.
2. according to claim 1 avoiding shows abnormal method, it is characterized in that: described step a) also comprises:
Based on the first command information, regulate power supply to display unit power supply, and the voltage of the power supply of the described display unit of record can normally show time and the amplitude of accommodation that power supply is conditioned.
3. according to claim 1 avoiding shows abnormal method, it is characterized in that, described step 1) also comprises:
Based on the second command information, obtain the current voltage of described power supply, and the voltage of the power supply of the current voltage of the power supply based on obtaining, the described display unit can normally show time and the amplitude of accommodation that power supply is conditioned are determined the current amplitude of accommodation, and based on the described current amplitude of accommodation, regulate the current voltage of described power supply so that described display unit current can show normal.
4. according to avoiding described in claims 1 to 3 any one, show abnormal method, it is characterized in that: described display unit comprises the display unit being installed in ammeter.
5. avoid showing an abnormal regulating system, it is characterized in that, described in avoid showing that abnormal regulating system at least comprises:
The first regulon, for regulating power supply to display unit power supply, and the voltage of the power supply of the described display unit of record can normally show time and the amplitude of accommodation that power supply is conditioned;
The second regulon, the voltage of the power supply of the described display unit for the current voltage based on power supply, can normally show time and the current voltage that the amplitude of accommodation regulates described power supply so that described display unit current can show normal.
6. according to claim 5 avoiding shows abnormal regulating system, it is characterized in that: described the first regulon also comprises:
The first sub-regulon, for regulating power supply based on the first command information to display unit power supply, and the voltage of the power supply of the described display unit of record can normally show time and the amplitude of accommodation that power supply is conditioned.
7. according to claim 5 avoiding shows abnormal regulating system, it is characterized in that, described the second regulon also comprises:
The second sub-regulon, for obtain the current voltage of described power supply based on the second command information, and the voltage of the power supply of the current voltage of the power supply based on obtained, the described display unit can normally show time and the amplitude of accommodation that power supply is conditioned are determined the current amplitude of accommodation, and based on the described current amplitude of accommodation, regulate the current voltage of described power supply so that described display unit current can show normal.
8. according to avoiding described in claim 5 to 7 any one, show abnormal regulating system, it is characterized in that: described display unit comprises the display unit being installed in ammeter.
9. an intelligent electric meter, is characterized in that comprising: the regulating system in claim 5 to 8 described in any one.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210070054.6A CN102590611B (en) | 2012-03-16 | 2012-03-16 | Method for avoiding abnormal display, adjusting system and electric meter |
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| CN201210070054.6A CN102590611B (en) | 2012-03-16 | 2012-03-16 | Method for avoiding abnormal display, adjusting system and electric meter |
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| CN102590611B true CN102590611B (en) | 2014-04-16 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN1111770A (en) * | 1993-07-21 | 1995-11-15 | 雅考埃普森株式会社 | Power supply device, liquid crystal display device, and method of supplying power |
| CN101907655A (en) * | 2010-07-07 | 2010-12-08 | 江苏斯菲尔电气股份有限公司 | Electric energy metering instrument for multi-power supply system |
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| CN102590611A (en) | 2012-07-18 |
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