CN114636962A - Automatic calibration equipment, method, device and medium for driving power panel - Google Patents
Automatic calibration equipment, method, device and medium for driving power panel Download PDFInfo
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- CN114636962A CN114636962A CN202210546406.4A CN202210546406A CN114636962A CN 114636962 A CN114636962 A CN 114636962A CN 202210546406 A CN202210546406 A CN 202210546406A CN 114636962 A CN114636962 A CN 114636962A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/02—Testing or calibrating of apparatus covered by the other groups of this subclass of auxiliary devices, e.g. of instrument transformers according to prescribed transformation ratio, phase angle, or wattage rating
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G01R31/2851—Testing of integrated circuits [IC]
- G01R31/2855—Environmental, reliability or burn-in testing
- G01R31/2872—Environmental, reliability or burn-in testing related to electrical or environmental aspects, e.g. temperature, humidity, vibration, nuclear radiation
- G01R31/2879—Environmental, reliability or burn-in testing related to electrical or environmental aspects, e.g. temperature, humidity, vibration, nuclear radiation related to electrical aspects, e.g. to voltage or current supply or stimuli or to electrical loads
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Abstract
The invention discloses automatic calibration equipment, method, device and medium of a driving power panel, and is suitable for the technical field of automatic calibration. The system back plate is connected with the driving power supply plate and the channel switching plate, the source meter is connected with the channel switching plate, and the PC upper computer is connected with the system back plate through an RS422 communication line and connected with the source meter. The method comprises the steps of obtaining a plurality of output parameters of the current output channel type of the current output channel of the driving power panel, determining a plurality of actual parameters corresponding to a source table according to the plurality of output parameters, establishing a linear fitting relation between the plurality of output parameters and the plurality of actual parameters to obtain a KB coefficient, and writing the KB coefficient into the driving power panel to finish automatic calibration of the current output channel type, so that automatic calibration of the output channel of the driving power panel is realized. The problem of the current artifical calibration bring waste time and energy and the calibration expense is high is solved, the degree of accuracy of calibration is improved through automatic calibration.
Description
Technical Field
The present invention relates to the field of automatic calibration technologies, and in particular, to an automatic calibration apparatus, method, device, and medium for driving a power board.
Background
In the optical communication industry, a main circuit board of an aging system of a Chip (Chip On Chip, COC) built in a laser Chip is a driving power supply board of the COC Chip, and is used for providing a stable and accurate driving current source for the COC Chip in the aging process of the COC Chip and accurately detecting the current and voltage change of the COC Chip in the aging process so as to meet various accurate test conditions required by the aging process. In order to improve the aging COC capacity to improve the aging efficiency and reduce the aging cost, therefore, an accurate, stable and reliable driving power supply is an important guarantee that various aging conditions can be accurately achieved.
At present, the drive power supply boards of a plurality of COC aging systems are usually calibrated once only when leaving a factory, and cannot be regularly calibrated in the using process, the source meters can generate certain linear deviation when leaving the factory, manual calibration can be performed under most conditions in the using process, and because the number of the drive power supply boards in the aging systems is large, time and labor are wasted, the calibration cost is high, and the calibration accuracy is not greatly improved.
Therefore, it is necessary to solve the problem of how to improve the calibration accuracy of the driving power board.
Disclosure of Invention
The invention aims to provide automatic calibration equipment, method, device and medium for driving a power panel, which solve the problems of time and labor waste and high calibration cost caused by the conventional manual calibration and improve the calibration accuracy through automatic calibration.
In order to solve the technical problem, the invention provides automatic calibration equipment for a driving power supply board, which comprises a system back board, a PC upper computer, the driving power supply board, a channel switching board and a source meter; the driving power panel is connected with the laser chip through a clamp and used for supplying power to the laser chip and sampling current and voltage parameters of the laser chip, and the accuracy of the voltage and the current of the source meter is 6-bit half resolution;
the system back plate is connected with the driving power supply plate, is connected with the channel switching plate and is used for receiving a plurality of output parameters of the driving power supply plate and correspondingly sending the output parameters to the channel switching plate, wherein the output parameters are parameters of a current output channel type corresponding to a current output channel of the driving power supply plate, and the current output channel type is any one of a current source output type, a voltage source output type, a current sampling type and a voltage sampling type;
the source table is connected with the channel switching board and is used for receiving a plurality of actual parameters which are correspondingly output according to a plurality of output parameters;
the PC upper computer is connected with the system back plate through an RS422 communication line, is connected with the source table, and is used for acquiring a plurality of output parameters and a plurality of actual parameters and establishing a linear fitting relation to obtain a KB coefficient of the current output channel type; writing the KB coefficient into the driving power panel through the system backboard so as to finish the automatic calibration of the current output channel type of the current output channel;
the RS422 communication line is used for receiving and transmitting control frames, command frames, and data frames, and is distinguished by different frame formats.
Preferably, the PC upper computer is connected with the source table through a GPIB bus.
Preferably, the source table is a Keithely series source table.
In order to solve the technical problems, the invention also provides an automatic calibration method of the driving power panel, which is applied to automatic calibration equipment of the driving power panel comprising a system back panel, a PC upper computer, the driving power panel, a channel switching panel and a source meter, wherein the driving power panel is connected with the laser chip through a clamp, and the accuracy of the voltage and the current of the source meter is 6-bit half resolution; the system backplate is connected with the drive power supply board, and switches the board with the passageway and be connected, and the source table switches the board with the passageway and is connected, and PC host computer passes through RS422 communication line with the system backplate and is connected, and with the source table, include:
acquiring a plurality of output parameters of the driving power panel, wherein the plurality of output parameters are parameters of a current output channel type corresponding to a current output channel of the driving power panel, and the current output channel type is any one of a current source output type, a voltage source output type, a current sampling type and a voltage sampling type;
determining a plurality of actual parameters of the current output channel type corresponding to the source table according to the plurality of output parameters;
establishing a linear fitting relation between the plurality of output parameters and the plurality of actual parameters to obtain a KB coefficient of the current output channel type;
and writing the KB coefficient into the driving power panel through the system backboard to finish the automatic calibration of the current output channel type of the current output channel.
Preferably, before obtaining the plurality of output parameters for driving the power supply board, the method further includes:
initializing a driving power panel, a channel switching panel and a source table;
judging whether the driving power panel is inserted;
if yes, entering a step of acquiring a plurality of output parameters of the driving power panel;
if not, checking the working state of the driving power panel, and returning to the step of judging whether the driving power panel is inserted or not when the working state is normal work.
Preferably, after writing the KB coefficient to the driving power board through the system backplane, the method further includes:
judging whether all output channels of the driving power panel are automatically calibrated;
if yes, controlling power down;
if not, returning to the step of acquiring a plurality of output parameters of the driving power panel.
In order to solve the technical problem, the invention also provides an automatic calibration device of the driving power panel, which is applied to automatic calibration equipment of the driving power panel comprising a system back panel, a PC upper computer, the driving power panel, a channel switching panel and a source meter, wherein the driving power panel is connected with the laser chip through a clamp, and the accuracy of the voltage and the current of the source meter is 6-bit half resolution; the system backplate is connected with the drive power supply board, and switches the board with the passageway and be connected, and the source table switches the board with the passageway and is connected, and PC host computer passes through RS422 communication line with the system backplate and is connected, and is connected with the source table, include:
the acquisition module is used for acquiring a plurality of output parameters of the driving power panel, wherein the plurality of output parameters are parameters of a current output channel type corresponding to a current output channel of the driving power panel, and the current output channel type is any one of a current source output type, a voltage source output type, a current sampling type and a voltage sampling type;
the determining module is used for determining a plurality of actual parameters of the current output channel type corresponding to the source table according to the plurality of output parameters;
the establishing module is used for establishing a linear fitting relation between the plurality of output parameters and the plurality of actual parameters to obtain a KB coefficient of the current output channel type;
and the writing module is used for writing the KB coefficient into the driving power panel through the system backboard so as to finish the automatic calibration of the current output channel type of the current output channel.
In order to solve the above technical problem, the present invention further provides an automatic calibration device for a driving power board, including:
a memory for storing a computer program;
and the processor is used for realizing the steps of the automatic calibration method of the driving power panel when executing the computer program.
In order to solve the above technical problem, the present invention further provides a computer-readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements the steps of the automatic calibration method for the driving power strip.
The invention provides automatic calibration equipment for a driving power panel, which comprises a system back panel, a PC upper computer, the driving power panel, a channel switching panel and a source meter, wherein the driving power panel is connected with a laser chip through a clamp, and the accuracy of voltage and current of the source meter is 6-bit half resolution; the system back plate is connected with the driving power supply plate and the channel switching plate, the source meter is connected with the channel switching plate, and the PC upper computer is connected with the system back plate through an RS422 communication line and connected with the source meter. The device obtains a plurality of output parameters of the current output channel type of the current output channel of the driving power panel, determines a plurality of actual parameters corresponding to the source table according to the plurality of output parameters, establishes a linear fitting relation between the plurality of output parameters and the plurality of actual parameters to obtain a KB coefficient, and writes the KB coefficient into the driving power panel to finish automatic calibration of the current output channel type, so that automatic calibration of the output channel of the driving power panel is realized. The problem of the current artifical calibration bring waste time and energy and the calibration expense is high is solved, the degree of accuracy of calibration is improved through automatic calibration.
In addition, the invention also provides an automatic calibration method, device and medium of the driving power panel, which have the same beneficial effects as the automatic calibration equipment of the driving power panel.
Drawings
In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained by those skilled in the art without inventive effort.
Fig. 1 is a structural diagram of an automatic calibration device for driving a power board according to an embodiment of the present invention;
fig. 2 is a flowchart of an automatic calibration method for a driving power board according to an embodiment of the present invention;
fig. 3 is a structural diagram of an automatic calibration device for a driving power board according to an embodiment of the present invention;
fig. 4 is a structural diagram of another automatic calibration apparatus for a driving power board according to an embodiment of the present invention;
fig. 5 is a flowchart of another automatic calibration method for a driving power board according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative work belong to the protection scope of the present invention.
The core of the invention is to provide automatic calibration equipment, method, device and medium for driving a power panel, which solve the problems of time and labor waste and high calibration cost caused by the existing manual calibration and improve the calibration accuracy through automatic calibration.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
It should be noted that, according to the automatic calibration device for the driving power board provided by the present invention, the driving power board is periodically removed from the aging system of the COC chip and installed in the automatic calibration device provided by the present invention, and after the automatic calibration of the driving power board is completed, the driving power board is installed in the aging system to provide a stable and accurate driving current source and accurately monitor the current and voltage changes of the COC chip in the aging process, so as to meet various accurate test conditions required in the aging process.
Fig. 1 is a structural diagram of an automatic calibration device for a driving power board according to an embodiment of the present invention, and as shown in fig. 1, the device includes a system backplane 1, a PC upper computer 2, a driving power board 3, a channel switching board 4, and a source table 5; the driving power panel 3 is connected with the laser chip through a clamp and used for supplying power to the laser chip and sampling current and voltage parameters of the laser chip, and the accuracy of the voltage and the current of the source table 5 is 6-bit half resolution;
the system back plate 1 is connected with the driving power supply board 3, connected with the channel switching board 4, and configured to receive a plurality of output parameters of the driving power supply board 3 and correspondingly send the plurality of output parameters to the channel switching board 4, where the plurality of output parameters are parameters of a current output channel type corresponding to a current output channel of the driving power supply board 3, and the current output channel type is any one of a current source output type, a voltage source output type, a current sampling type, and a voltage sampling type;
the source table 5 is connected with the channel switching board 4 and is used for receiving a plurality of actual parameters which are correspondingly output according to a plurality of output parameters;
the PC upper computer 2 is connected with the system backboard 1 through an RS422 communication line and is connected with the source table 5, and is used for acquiring a plurality of output parameters and a plurality of actual parameters and establishing a linear fitting relation to obtain a KB coefficient of the current output channel type; the KB coefficients are written to the driving power board 3 through the system backplane 1 to complete the automatic calibration of the current output channel type of the current output channel.
Specifically, the system backplane 1 is connected to a driving power board 3 and a channel switching board 4, and is used for supplying power to the driving power board 3 and the channel switching board 4, and is also used for communication connection between the driving power board 3 and the channel switching board 4 and a Personal Computer (PC) upper computer. The PC upper computer 2 is connected with the system backboard 1 and respectively controls the operation of the driving power panel 3 and the channel switching panel 4. The PC upper computer 2 is connected with the source table 5 and is used for controlling the source table 5.
Under the control of the PC upper computer 2, the plurality of channels of the driving power board 3 can be configured independently to be the output of a current source or a voltage source, and can also be used as an ammeter or a voltmeter of the plurality of channels to sample the current and the voltage. For example, the driving power supply board 3 has 32 channels, and the 32 channels are configured as current sources or voltage source data independently from each other, and may be used as a 32-way ammeter or voltmeter to sample current and voltage.
It can be understood that the PC upper computer 2 obtains a plurality of output parameters of the driving power board 3, where the output parameters are parameters of a current output channel type of a current output channel, and the current output channel type is any one of four types of the source table 5. For example, the obtained multiple output parameters are parameters of a current source output class of the current output channel, the multiple parameters are obtained according to preset time, the parameters of the current source output class are obtained in 1 st to 5 th s, the parameters of the voltage source output class are obtained in 6 th to 10 th s, the parameters of the current sampling class are obtained in 11 th to 15 th s, the parameters of the voltage sampling class are obtained in 16 th to 20 th s, and different output channel types can be obtained in a conversion sequence.
And correspondingly acquiring a plurality of actual parameters from the acquired data parameters, establishing a linear fitting relationship to obtain a KB coefficient of the current output channel type, writing the KB coefficient into the driving power panel 3 through the system backboard 1, completing automatic calibration of the current output channel type, and continuously acquiring parameters of other output channel types to calibrate the current output channel according to the same method. In combination with the above example, the driving power board 3 has 32 output channels, until the 32 output channels are automatically calibrated to achieve the automatic calibration of the driving circuit board.
In addition, the current range of the current source output class and the current sampling class of the current output channel class is 1010 muA-80 mA, and the precision is 0.02%; the voltage range of the voltage source output class and the voltage sampling class is 100 muV-2V.
The accuracy of the voltage and current of the source table 5 is 6-bit half precision, which is higher than that of a 5-bit half precision source table.
It should be noted that, in order to avoid parallel connection of multiple channels, the connection of channel lines is reduced between the driving power supply board 3 and the channel switching board 4, which creates connection between the two through the system backplane 1.
It can be understood that the PC upper computer is connected to the system backplane, which is specifically connected via an RS422 communication line. Unlike RS422 and RS232, the data signal is transmitted differentially using a pair of twisted pair wires, which is common in early PC communication, and the maximum transmission distance of RS422 is 4000 feet, and the maximum transmission rate is 10 Mb/s. Compared with RS232 communication lines, the distance of signal transmission is long and the speed is high.
The RS485 and RS422 circuits are basically the same in principle, and both transmit and receive in a differential mode without a digital ground wire. The differential operation is the fundamental reason of long transmission distance under the condition of the same speed, which is the fundamental difference between the two and RS232, because RS232 is single-ended input and output, three lines of digital ground line, sending line and receiving line (asynchronous transmission) are at least needed in duplex operation, and other control lines can be added to complete the functions of synchronization and the like. RS422 can receive and transmit without mutual influence through full duplex operation of two pairs of twisted-pair lines, while RS485 can only work in half duplex mode, and can not simultaneously transmit and receive, but only needs one pair of twisted-pair lines. RS422 and RS485 can transmit 1200 meters under 19kpbs, and equipment can be connected on a novel transceiver line. The RS422 communication line is used for receiving and transmitting control frames, command frames and data frames, and is distinguished by different frame formats.
The invention can use RS422 and RS232, and can be set according to the actual situation, without specific limitation.
The invention provides automatic calibration equipment for a driving power panel, which comprises a system back panel, a PC upper computer, the driving power panel, a channel switching panel and a source meter, wherein the driving power panel is connected with a laser chip through a clamp, and the accuracy of voltage and current of the source meter is 6-bit half resolution; the system back plate is connected with the driving power supply plate and the channel switching plate, the source meter is connected with the channel switching plate, and the PC upper computer is connected with the system back plate through an RS422 communication line and connected with the source meter. The device obtains a plurality of output parameters of the current output channel type of the current output channel of the driving power panel, determines a plurality of actual parameters corresponding to the source table according to the plurality of output parameters, establishes a linear fitting relation between the plurality of output parameters and the plurality of actual parameters to obtain a KB coefficient, and writes the KB coefficient into the driving power panel to finish automatic calibration of the current output channel type, so that automatic calibration of the output channel of the driving power panel is realized. The problem of the current artifical calibration bring waste time and energy and the calibration expense is high is solved, the degree of accuracy of calibration is improved through automatic calibration.
On the basis of the above embodiment, the PC upper computer is connected to the source table, specifically via the GPIB bus.
It is understood that a General Purpose Interface Bus (GPIB) is basically found in electronic test instruments and is mainly used to connect electronic instruments and meters. The GPIB bus provides the necessary specification and protocol management communications, its primary purpose is to provide computer control of the instrument during the inspection measurements, and its use is extended to computer-to-computer communications, multimeter, scanner and oscilloscope control.
The GPIB interface increases the transmission rate and total number of devices simultaneously supported over serial control. The present invention may be a Local Area Network (LAN) interface or a Universal Serial Bus (USB) interface, etc. other than the GPIB Bus connection, and is not particularly limited. It is only necessary to use different interfaces and adapt the source table and the PC upper computer to change the interface parameters.
The PC upper computer provided by the embodiment of the invention is connected with the source table through the GPIB bus, so that the transmission rate and the total number of simultaneously supported devices are improved.
On the basis of the above embodiments, the source meter refers to a measuring instrument which can synchronously measure the current value or the voltage value and is used as a voltage source or a current source of four quadrants to provide voltage or current. When the power supply is used, the power supply can be used as a programmable voltage source or a programmable current source; when the universal meter is used, the universal meter can be used as a digital voltmeter (a current source, the output current is 0, and the voltage value is measured), a digital ammeter (a voltage source, the output voltage is 0, and the current value is measured), or a digital ohmmeter (a current source, the output current is a certain value, and the voltage value is measured). When the electronic load is used, the load can be used as an editable constant voltage load or an editable constant current load; when the power supply/measuring meter is combined, the current is measured for the voltage or the voltage is measured for the current, so that multiple measurements can be carried out by using one instrument.
The invention uses Keithely series source tables, and can also use other types of source tables, which is just a preferred embodiment.
The source table provided by the embodiment of the invention is a Keithely series source table, has low noise and readback function, and has high repeatability.
The above detailed description is provided for the embodiment of the automatic calibration device for the driving power board provided by the present invention, and the present invention further provides an automatic calibration method for the driving power board corresponding to the device.
Fig. 2 is a flowchart of an automatic calibration method for a driving power board according to an embodiment of the present invention, where the method is applied to an automatic calibration device for a driving power board including a system backplane, a PC upper computer, a driving power board, a channel switching board, and a source table, the driving power board is connected to a laser chip through a clamp, and the accuracy of voltage and current of the source table is 6 bits and half resolution; the system back plate is connected with the driving power supply plate and the channel switching plate, the source meter is connected with the channel switching plate, the PC upper computer is connected with the system back plate through an RS422 communication line and the source meter, as shown in figure 2, the method comprises the following steps:
s11: acquiring a plurality of output parameters of the driving power panel, wherein the plurality of output parameters are parameters of a current output channel type corresponding to a current output channel of the driving power panel, and the current output channel type is any one of a current source output type, a voltage source output type, a current sampling type and a voltage sampling type;
s12: determining a plurality of actual parameters of the current output channel type corresponding to the source table according to the plurality of output parameters;
s13: establishing a linear fitting relation between the plurality of output parameters and the plurality of actual parameters to obtain a KB coefficient of the current output channel type;
s14: and writing the KB coefficient into the driving power panel through the system backboard to finish the automatic calibration of the current output channel type of the current output channel.
It can be understood that a plurality of output parameters of the driving power panel are obtained, and the plurality of output parameters are parameters of the current output channel type of the current output channel of the driving power panel. Before obtaining the output parameters, the current output channel type of the current output channel needs to be determined, and then the channel switching board performs configuration and corresponds to the specified current output channel. For example, the driving power board has 32 output channels, and the channel switching board needs to switch the 32 output channels into one channel, only outputs the value of the current output channel, and sequentially completes the calibration of the 32 output channels.
The driving power panel sends the parameters of the current output channel and the type of the current output channel to the system back plate, the system back plate sends the parameters to the configured channel switching plate, the PC upper computer obtains the parameters, meanwhile, the channel switching plate sends the parameters to the source table to obtain actual parameters, and the PC upper computer reads the actual parameters of the source table.
Specifically, the actual parameter is a parameter for the current output channel type, for example, the output parameter of the current source output type of the first output channel of the driving power board is obtained, and then the actual parameter corresponding to the output parameter is obtained in the source table. The number of the parameters is multiple, so that a fitting relation can be established according to the multiple parameters.
The method comprises the steps of establishing a linear fitting relation according to output parameters and actual parameters, wherein the linear fitting relation is simply established in a form that a linear function is y = kx + b, the functional relation is at least two output parameters (x) and actual parameters (y), a KB coefficient serving as a KB coefficient of a current output channel type can be obtained according to the function, and in order to enable the linear fitting function to be descriptive, the linear fitting function obtains a plurality of output parameters and a plurality of actual parameters.
After the KB coefficients of the current output channel type are obtained, 4 KB coefficients of the current output channel can be obtained to correspond to 4 output channel types, respectively, and thus, the automatic calibration of the current output channel is completed. And writing the obtained KB coefficient into a driving power panel through a system backboard to finish the automatic calibration of the current output channel.
For example: the channel outputs 100mA output parameters, the actual parameters are 100.2mA, the channel outputs 80mA, the actual parameters are 80.2mA, the KB coefficient is obtained and then written into the driving power panel for inverse calculation, the actual parameters are 99.8mA, and the actual output is 100mA, so that the purpose of automatic calibration is achieved.
The invention provides an automatic calibration method of a driving power panel, which comprises the steps of obtaining a plurality of output parameters of the current output channel type of the current output channel of the driving power panel, determining a plurality of actual parameters corresponding to a source table according to the output parameters, establishing a linear fitting relationship between the output parameters and the actual parameters to obtain a KB coefficient, and writing the KB coefficient into the driving power panel to finish the automatic calibration of the current output channel type, so as to realize the automatic calibration of the output channel of the driving power panel. The problem of the current artifical calibration bring waste time and energy and the calibration expense is high is solved, the degree of accuracy of calibration is improved through automatic calibration.
On the basis of the above embodiment, before acquiring the plurality of output parameters of the driving power supply board in step S11, the method further includes:
initializing a driving power panel, a channel switching panel and a source table;
judging whether the driving power panel is inserted;
if yes, entering a step of acquiring a plurality of output parameters of the driving power panel;
if not, checking the working state of the driving power panel, and returning to the step of judging whether the driving power panel is inserted or not when the working state is normal work.
And the driving power supply board is detached from the COC aging system, initialized and installed in the automatic calibration equipment, the channel switching board is initialized so as to be configured to the corresponding output channel setting of the driving power supply board, and the source table is initialized.
Judging whether the driving power panel is inserted into the automatic calibration device, if so, entering step S11 of the above embodiment, if not, further checking the working state of the driving power panel, and if the working state is normal, further judging whether the driving power panel is inserted, or checking whether the driving power panel completes the initialization program, and continuing to judge whether the driving power panel is inserted, so as to facilitate the subsequent calibration work.
The embodiment of the invention carries out system initialization, judges whether the driving board is inserted or not, and obtains the output parameters when the driving board is inserted, thereby facilitating the subsequent automatic calibration of the driving power board.
On the basis of the above embodiment, after writing the KB coefficient to the driving power board through the system backplane in step S14, the method further includes:
judging whether all output channels of the driving power panel are automatically calibrated;
if yes, controlling power down;
if not, returning to the step of acquiring a plurality of output parameters of the driving power panel.
It can be understood that, the types of the driving power boards are different, the number of the output channels is different, after the KB coefficient is written into the driving power board, it needs to be determined whether the driving power board completes the automatic calibration of all the output channels, and if so, the power down is controlled so as to insert the driving power board into the COC aging system. If not, the output parameters are continuously obtained, i.e. the process returns to step S11.
The judgment that whether all the output channels of the driving power panel are automatically calibrated is completed, if yes, power down is controlled, and if not, the step S11 is returned to continue to acquire a plurality of output parameters of other output channels for automatic calibration, so that the experience of a user is improved, and the completion of the automatic calibration work of each output channel of the driving power panel is facilitated.
On the basis of the detailed description of each embodiment corresponding to the automatic calibration equipment of the driving power panel, the invention also discloses an automatic calibration device of the driving power panel corresponding to the equipment, which is applied to the automatic calibration equipment of the driving power panel comprising a system back panel, a PC upper computer, the driving power panel, a channel switching panel and a source meter, wherein the driving power panel is connected with a laser chip through a clamp, and the accuracy of the voltage and the current of the source meter is 6-bit half resolution; the system back plate is connected with the driving power supply plate and connected with the channel switching plate, the source meter is connected with the channel switching plate, the PC upper computer is connected with the system back plate through an RS422 communication line and connected with the source meter, and FIG. 3 is a structural diagram of an automatic calibration device of the driving power supply plate provided by the embodiment of the invention. As shown in fig. 3, the automatic calibration apparatus of the driving power board includes:
the obtaining module 11 is configured to obtain a plurality of output parameters of the driving power panel, where the plurality of output parameters are parameters of a current output channel type corresponding to a current output channel of the driving power panel, and the current output channel type is any one of a current source output type, a voltage source output type, a current sampling type, and a voltage sampling type;
a determining module 12, configured to determine, according to the multiple output parameters, multiple actual parameters of the current output channel type corresponding to the source table;
the establishing module 13 is configured to establish a linear fitting relationship between the multiple output parameters and the multiple actual parameters to obtain a KB coefficient of the current output channel type;
and a write module 14, configured to write the KB coefficient to the driving power board through the system backplane to complete automatic calibration of the current output channel type of the current output channel.
Since the embodiment of the apparatus portion corresponds to the above-mentioned embodiment, please refer to the above-mentioned embodiment of the method portion for describing the embodiment of the apparatus portion, and details are not repeated herein.
The automatic calibration device for the driving power panel provided by the invention has the advantages that a plurality of output parameters of the current output channel type of the current output channel of the driving power panel are obtained, a plurality of actual parameters corresponding to a source table are determined according to the output parameters, a linear fitting relation is established between the output parameters and the actual parameters to obtain a KB coefficient, and the KB coefficient is written into the driving power panel to finish the automatic calibration of the current output channel type, so that the automatic calibration of the output channel of the driving power panel is realized. The problem of the current artifical calibration bring waste time and energy and the calibration expense is high is solved, the degree of accuracy of calibration is improved through automatic calibration.
Fig. 4 is a structural diagram of another automatic calibration apparatus for a driving power board according to an embodiment of the present invention, as shown in fig. 4, the apparatus includes:
a memory 21 for storing a computer program;
and a processor 22 for implementing the steps of the automatic calibration method of the driving power board when executing the computer program.
The automatic calibration device for driving the power supply board provided by the embodiment may include, but is not limited to, a smart phone, a tablet computer, a notebook computer, or a desktop computer.
The processor 22 may include one or more processing cores, such as a 4-core processor, an 8-core processor, and so on. The Processor 22 may be implemented in hardware using at least one of a Digital Signal Processor (DSP), a Field-Programmable Gate Array (FPGA), and a Programmable Logic Array (PLA). The processor 22 may also include a main processor and a coprocessor, the main processor is a processor for Processing data in an awake state, and is also called a Central Processing Unit (CPU); a coprocessor is a low power processor for processing data in a standby state. In some embodiments, the processor 22 may be integrated with a Graphics Processing Unit (GPU) that is responsible for rendering and rendering content that the display screen needs to display. In some embodiments, processor 22 may also include an Artificial Intelligence (AI) processor for processing computational operations related to machine learning.
Memory 21 may include one or more computer-readable storage media, which may be non-transitory. Memory 21 may also include high speed random access memory, as well as non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices. In this embodiment, the memory 21 is at least used for storing the following computer program 211, wherein after the computer program is loaded and executed by the processor 22, the relevant steps of the automatic calibration method for driving the power supply board disclosed in any one of the foregoing embodiments can be implemented. In addition, the resources stored in the memory 21 may also include an operating system 212, data 213, and the like, and the storage manner may be a transient storage manner or a permanent storage manner. Operating system 212 may include Windows, Unix, Linux, etc., among others. Data 213 may include, but is not limited to, data related to an auto-calibration method of driving a power strip, and the like.
In some embodiments, the automatic calibration device for driving the power panel may further include a display 23, an input/output interface 24, a communication interface 25, a power supply 26, and a communication bus 27.
Those skilled in the art will appreciate that the configuration shown in fig. 4 does not constitute a limitation of the automatic calibration means of the drive power supply board and may include more or fewer components than those shown.
The processor 22 calls the instructions stored in the memory 21 to implement the automatic calibration method for driving the power supply board provided by any of the above embodiments.
The automatic calibration device for the driving power panel provided by the invention has the advantages that a plurality of output parameters of the current output channel type of the current output channel of the driving power panel are obtained, a plurality of actual parameters corresponding to a source table are determined according to the output parameters, a linear fitting relation is established between the output parameters and the actual parameters to obtain a KB coefficient, and the KB coefficient is written into the driving power panel to finish the automatic calibration of the current output channel type, so that the automatic calibration of the output channel of the driving power panel is realized. The problem of the current artifical calibration bring waste time and energy and the calibration expense is high is solved, the degree of accuracy of calibration is improved through automatic calibration.
Further, the present invention also provides a computer readable storage medium, on which a computer program is stored, and the computer program, when executed by the processor 22, implements the steps of the automatic calibration method for the driving power board as described above.
It is to be understood that if the method in the above embodiments is implemented in the form of software functional units and sold or used as a stand-alone product, it can be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and executes all or part of the steps of the methods according to the embodiments of the present invention, or all or part of the technical solution. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
For the introduction of the computer readable storage medium provided by the present invention, please refer to the above method embodiment, which is not described herein again, and has the same beneficial effects as the above automatic calibration method for the driving power board.
As a preferred embodiment, fig. 5 is a flowchart of another method for automatically calibrating a driving power board according to an embodiment of the present invention, where the method includes:
s20: controlling power-on, and initializing a driving power panel, a channel switching panel and a source table;
s21: judging whether the driving power panel is inserted, if so, entering step S23, otherwise, entering step S22;
s22: checking the working state of the driving power panel, and returning to the step S21 when the working state is normal work;
s23: configuring a channel switching board to a specified channel, and acquiring current output channel parameters;
s24: current source calibration, namely scanning a calibration interval according to a set interval, acquiring actual parameters corresponding to a source table, and establishing a linear fitting relation with current source output parameters to acquire corresponding KB coefficients;
s25: voltage source calibration, namely scanning a calibration interval according to a set interval, acquiring actual parameters corresponding to a source table, and establishing a linear fitting relation with voltage source output parameters to acquire corresponding KB coefficients;
s26: calibrating the ammeter, scanning a calibration interval according to a set interval, acquiring actual parameters corresponding to the source meter, and establishing a linear fitting relationship with output parameters of the ammeter to acquire corresponding KB coefficients;
s27: calibrating the voltmeter, scanning a calibration interval according to a set interval, acquiring actual parameters corresponding to the source meter, and establishing a linear fitting relation with output parameters of the voltmeter to acquire corresponding KB coefficients;
s28: saving KB coefficients corresponding to the four calibration types, and writing the KB coefficients into an EEPROM of the driving power panel;
s29: judging whether all the set channels of the driving power panel are calibrated, if so, going to step S30, and if not, going to step S23;
s30: and controlling the power down.
Specifically, in step S24, configuring the driving power board channel as a current source output, and the source meter as an ammeter; in step S25, configuring the driving power board channel as a voltage source output, and the source meter as a voltmeter; in step S26, configuring the driving power board channel as a current sampling mode, and the source table as a current source output; in step S27, the driving power board channel is configured to be in a voltage re-feeding mode, and the source table is a voltage source output.
The above description is provided by the flowchart of another automatic calibration method for a driving power board according to an embodiment of the present invention, which has the same beneficial effects as the above-mentioned automatic calibration method for a driving power board.
The automatic calibration device for the driving power panel, the automatic calibration method for the driving power panel, the automatic calibration device for the driving power panel and the medium are described in detail above. The embodiments are described in a progressive mode in the specification, the emphasis of each embodiment is on the difference from the other embodiments, and the same and similar parts among the embodiments can be referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Claims (9)
1. An automatic calibration device of a driving power supply board is characterized by comprising a system back board, a PC upper computer, the driving power supply board, a channel switching board and a source meter; the driving power supply board is connected with the laser chip through a clamp and used for supplying power to the laser chip and sampling parameters of current and voltage of the laser chip, and the accuracy of the voltage and the current of the source meter is 6-bit half resolution;
the system back plate is connected with the driving power supply plate, connected with the channel switching plate and used for receiving a plurality of output parameters of the driving power supply plate and correspondingly sending the output parameters to the channel switching plate, wherein the output parameters are parameters of a current output channel type corresponding to a current output channel of the driving power supply plate, and the current output channel type is any one of a current source output type, a voltage source output type, a current sampling type and a voltage sampling type;
the source table is connected with the channel switching board and is used for receiving a plurality of actual parameters which are correspondingly output according to a plurality of output parameters;
the PC upper computer is connected with the system backboard through an RS422 communication line and is connected with the source table, and is used for acquiring a plurality of output parameters and a plurality of actual parameters and establishing a linear fitting relationship to obtain a KB coefficient of the current output channel type; writing the KB coefficients to the driving power board through the system backplane to complete automatic calibration of the current output channel type of the current output channel;
the RS422 communication line is used for receiving and transmitting a control frame, a command frame, and a data frame, and is distinguished by different frame formats.
2. The automatic calibration device for driving a power supply board according to claim 1, wherein the PC upper computer and the source table are connected through a GPIB bus.
3. The automatic calibration device for driving a power supply board according to claim 2, wherein the source table is a Keithely series source table.
4. The automatic calibration method of the driving power panel is characterized by being applied to automatic calibration equipment of the driving power panel comprising a system back panel, a PC upper computer, the driving power panel, a channel switching panel and a source meter, wherein the driving power panel is connected with a laser chip through a clamp, and the accuracy of voltage and current of the source meter is 6-bit half resolution; the system backplate with the drive power supply board is connected, and with the passageway switches the board and connects, the source table with the passageway switches the board and connects, the PC host computer with the system backplate passes through RS422 communication line and connects, and with the source table is connected, includes:
acquiring a plurality of output parameters of the driving power panel, wherein the plurality of output parameters are parameters of a current output channel type corresponding to a current output channel of the driving power panel, and the current output channel type is any one of a current source output type, a voltage source output type, a current sampling type and a voltage sampling type;
determining a plurality of actual parameters of the current output channel type corresponding to the source table according to the plurality of output parameters;
establishing a linear fitting relation between the plurality of output parameters and the plurality of actual parameters to obtain a KB coefficient of the current output channel type;
writing the KB coefficients to the driving power board through the system backplane to complete the auto-calibration of the current output channel class of the current output channel.
5. The method for automatically calibrating a driving power board according to claim 4, further comprising, before the obtaining the plurality of output parameters of the driving power board:
initializing the driving power panel, the channel switching panel and the source table;
judging whether the driving power panel is inserted;
if yes, entering the step of acquiring a plurality of output parameters of the driving power panel;
if not, checking the working state of the driving power panel, and returning to the step of judging whether the driving power panel is inserted or not when the working state is normal work.
6. The method for auto-calibrating a driving power board according to claim 4 or 5, further comprising, after writing the KB coefficient to the driving power board through the system backplane:
judging whether all output channels of the driving power panel are automatically calibrated;
if yes, controlling power down;
if not, returning to the step of acquiring the plurality of output parameters of the driving power panel.
7. An automatic calibration device of a driving power panel is characterized by being applied to automatic calibration equipment of the driving power panel comprising a system back panel, a PC upper computer, the driving power panel, a channel switching panel and a source meter, wherein the driving power panel is connected with a laser chip through a clamp, and the accuracy of voltage and current of the source meter is 6-bit half resolution; the system backplate with the drive power supply board is connected, and with the passageway switches the board and connects, the source table with the passageway switches the board and connects, the PC host computer with the system backplate passes through RS422 communication line and connects, and with the source table is connected, includes:
the acquisition module is used for acquiring a plurality of output parameters of the driving power panel, wherein the plurality of output parameters are parameters of a current output channel type corresponding to a current output channel of the driving power panel, and the current output channel type is any one of a current source output type, a voltage source output type, a current sampling type and a voltage sampling type;
a determining module, configured to determine, according to the plurality of output parameters, a plurality of actual parameters of the current output channel type corresponding to the source table;
the establishing module is used for establishing a linear fitting relation between the plurality of output parameters and the plurality of actual parameters to obtain a KB coefficient of the current output channel type;
a write module for writing the KB coefficients to the driving power board through the system backplane to complete the auto-calibration of the current output channel type of the current output channel.
8. An automatic calibration device for driving a power strip, comprising:
a memory for storing a computer program;
a processor for implementing the steps of the method of automatic calibration of a drive power supply board according to any one of claims 4 to 6 when executing said computer program.
9. A computer-readable storage medium, characterized in that a computer program is stored thereon, which computer program, when being executed by a processor, carries out the steps of the method for automatic calibration of a drive power supply board according to any one of claims 4 to 6.
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| CN112230128A (en) * | 2020-12-14 | 2021-01-15 | 深圳市迅特通信技术有限公司 | Device and method for testing high-frequency performance of laser chip and storage medium |
| CN212675134U (en) * | 2020-07-10 | 2021-03-09 | 中山市科卓尔电器有限公司 | IH electromagnetic heating power panel test calibration system |
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| CN107121656A (en) * | 2017-04-28 | 2017-09-01 | 茂硕电源科技股份有限公司 | A kind of power supply automatic calibrating method and device |
| CN110426645A (en) * | 2019-08-22 | 2019-11-08 | 深圳市洛仑兹技术有限公司 | Multichannel charge-discharge parameter calibration method and system |
| CN212675134U (en) * | 2020-07-10 | 2021-03-09 | 中山市科卓尔电器有限公司 | IH electromagnetic heating power panel test calibration system |
| CN112230128A (en) * | 2020-12-14 | 2021-01-15 | 深圳市迅特通信技术有限公司 | Device and method for testing high-frequency performance of laser chip and storage medium |
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