CN113126472A - Method, device and equipment for calibrating indication value error of charging pile clock - Google Patents
Method, device and equipment for calibrating indication value error of charging pile clock Download PDFInfo
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- CN113126472A CN113126472A CN202110421582.0A CN202110421582A CN113126472A CN 113126472 A CN113126472 A CN 113126472A CN 202110421582 A CN202110421582 A CN 202110421582A CN 113126472 A CN113126472 A CN 113126472A
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Abstract
The invention discloses a method, a device and equipment for calibrating a clock indication value error of a charging pile, and relates to the technical field of error calibration. The charging pile clock indication error calibration equipment provided by the invention is used for calibrating time through the GPS, and the program is used for reading the absolute time scale through the pulse per second + serial port of the GPS, so that the accuracy of 1us can be realized, and the time accuracy is high. In addition, the detected charging pile clock is read through a video unit of the charging pile clock indication error verification equipment, the delay error is not more than 100ms, the time difference between the charging pile clock and the charging pile clock indication error verification equipment can be effectively judged, and the judgment of the accuracy of the charging pile clock is improved. The method and the device for calibrating the indication error of the charging pile clock can automatically acquire the time reading of the charging pile clock and the standard time reading, automatically compare the time reading and the standard time reading, avoid errors caused by manual comparison, and improve the calibration precision and efficiency.
Description
Technical Field
The invention relates to the technical field of error verification, in particular to a method, a device and equipment for verifying a charge pile clock indication error.
Background
The function of the charging pile is similar to that of an oiling machine in a gas station, and the charging pile can be fixed on the ground or on the wall, is installed in public buildings (public buildings, shopping malls, public parking lots and the like) and residential area parking lots or charging stations, and can charge various types of electric vehicles according to different voltage levels. The input end of the charging pile is directly connected with an alternating current power grid, and the output end of the charging pile is provided with a charging plug for charging the electric automobile. Fill electric pile and generally provide two kinds of charging methods of conventional charging and quick charge, people can use specific charging card to swipe the card and use on the human-computer interaction operation interface that fills electric pile and provide, carry out operations such as corresponding charging method, charging time, expense data printing, fill electric pile display screen and can show data such as the charge volume, expense, charging time.
In the detection process of the charging pile, the accuracy of the clock of the charging pile needs to be checked, the current clock accuracy check mainly depends on manual reading of the charging pile clock, and then the charging pile clock and the standard clock are manually compared, so that the accuracy of the charging pile clock is determined.
However, the method for calibrating the indication value error of the charging pile clock uses a mode of manually reading the charging pile time and the standard time for comparison, and has the problems of manual reaction time error, low efficiency and poor accuracy; meanwhile, the situation that manual comparison of the charging pile clocks cannot be performed due to the fact that the standard clocks are not around can occur, and inconvenience is brought to calibration of indication errors of the charging pile clocks.
Disclosure of Invention
The invention aims to solve at least one technical problem in the prior art, provides a method, a device and equipment for calibrating a indicating value error of a charging pile clock, and solves the technical problems of poor precision, low efficiency and inconvenience in manual detection in the prior art.
In a first aspect, the invention provides a method for calibrating a clock indication error of a charging pile, which comprises the following steps:
acquiring a first image of a clock display interface of the charging pile; the clock display interface is used for displaying a clock indication value of the charging pile;
determining charging pile time corresponding to a clock of a charging pile according to the first image;
determining standard time meeting preset precision;
and determining the error of the charging pile time compared with the standard time.
As a further improvement, the specific process of acquiring the first image of the clock display interface of the charging pile is as follows:
shooting a clock display interface of the charging pile through the imaging equipment so as to obtain a first image of the clock display interface of the charging pile.
As a further improvement, the specific process of determining the charging pile time corresponding to the clock of the charging pile according to the first image is as follows:
identifying numbers appearing in the first image by using a preset image identification algorithm;
and determining the charging pile time corresponding to the clock of the charging pile according to the number identified from the first image.
As a further improvement, the specific process of determining the standard time meeting the preset precision is as follows:
determining standard time meeting preset precision through a GPS receiving module; or
And determining standard time meeting preset precision through a network.
In a second aspect, the present invention provides a device for calibrating a clock indication error of a charging pile, the device comprising:
the image acquisition module is used for acquiring a first image of a clock display interface of the charging pile; the clock display interface is used for displaying a clock indication value of the charging pile;
the charging pile time determining module is used for determining charging pile time corresponding to a clock of the charging pile according to the first image;
the standard time determining module is used for determining standard time meeting preset precision;
and the error determination module is used for determining the error of the charging pile time compared with the standard time.
As a further improvement, the image acquisition module is further configured to:
shooting a clock display interface of the charging pile through the imaging equipment so as to obtain a first image of the clock display interface of the charging pile.
As a further improvement, the charging pile time determination module comprises the following units:
the image recognition unit is used for recognizing numbers appearing in the first image by using a preset image recognition algorithm;
and the charging pile time determining unit is used for determining the charging pile time corresponding to the clock of the charging pile according to the number identified from the first image.
As a further improvement, the standard time determination module comprises the following units:
the GPS standard time determining unit is used for determining standard time meeting preset precision through the GPS receiving module;
and the network standard time determining unit is used for determining the standard time meeting the preset precision through the network.
In a third aspect, the invention provides a device for calibrating the indication value error of a charging pile clock, which comprises a controller, a video unit and a GPS receiving module, wherein the video unit and the GPS receiving module are respectively and electrically connected with the controller;
the video unit is used for shooting a clock display interface of the charging pile to generate a first image of the clock display interface of the charging pile; the clock display interface is used for displaying a clock indication value of the charging pile;
the GPS receiving module is used for determining standard time meeting preset precision;
the controller is used for:
acquiring a first image of a clock display interface of the charging pile;
determining charging pile time corresponding to a clock of a charging pile according to the first image;
determining standard time meeting preset precision;
and determining the error of the charging pile time compared with the standard time.
As a further improvement, the video unit comprises an imaging device and a microscope module which forms an imaging light path together with the imaging device.
In a fourth aspect, the present invention provides a computer-readable storage medium having stored thereon computer-executable instructions for causing a computer to perform the method as described above.
Compared with the prior art, the method, the device and the equipment for calibrating the indicating value error of the charging pile clock have the following beneficial effects that:
1. the charging pile clock indication error calibration equipment provided by the invention is used for calibrating time through the GPS, and the program is used for reading the absolute time scale through the pulse per second + serial port of the GPS, so that the accuracy of 1us can be realized, and the time accuracy is high. In addition, the detected charging pile clock is read through a video unit of the charging pile clock indication error verification equipment, the delay error is not more than 100ms, the time difference between the charging pile clock and the charging pile clock indication error verification equipment can be effectively judged, and the judgment of the accuracy of the charging pile clock is improved.
2. The method and the device for calibrating the indication error of the charging pile clock can automatically acquire the time reading of the charging pile clock and the standard time reading, automatically compare the time reading and the standard time reading, avoid errors caused by manual comparison, and improve the calibration precision and efficiency.
Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The invention is further described below with reference to the figures and examples.
Fig. 1 is a schematic flow chart of a method for calibrating a indicating value error of a charging pile clock in an embodiment.
Fig. 2 is a block diagram of a device for calibrating a clock indication error of a charging pile according to an embodiment.
Fig. 3 is a block diagram of a device for calibrating a clock indication error of a charging pile according to an embodiment.
Fig. 4 is a schematic diagram illustrating a principle that a calibration device for calibrating a display error of a charging pile clock acquires standard time in one embodiment.
FIG. 5 is a block diagram of a computer device in one embodiment.
Reference numerals:
100. a controller; 110. an image acquisition module; 120. a charging pile time determining module; 130. a standard time determination module; 140. an error determination module; 210. a GPS receiving module; 220. an imaging device; 300. fill electric pile.
Detailed Description
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
The method, the device and the equipment for calibrating the indication error of the charging pile clock provided by the invention are described in detail below with reference to the accompanying drawings and a plurality of embodiments.
The method comprises the following steps:
as shown in fig. 1, in one example, there is provided a method for calibrating a registration error of a charging pile clock, the method including the steps of:
step S100: the controller 100 acquires a first image of a clock display interface of the charging pile 300; wherein, the clock display interface is used for showing the clock indicating value of electric pile 300.
Specifically, in step S100, the specific process of acquiring the first image of the clock display interface of the charging pile 300 is as follows:
the clock display interface of the charging pile 300 is photographed through the imaging device 220 to obtain a first image of the clock display interface of the charging pile 300.
It is understood that the imaging device 220 may be a CCD camera or a CMOS camera, which functions to photograph the clock display interface of the charging pile 300 and generate a first image.
Step S110: the controller 100 determines a charging pile 300 time corresponding to the clock of the charging pile 300 according to the first image.
Specifically, in step S110, the specific process of determining the charging pile 300 time corresponding to the clock of the charging pile 300 according to the first image is as follows:
step S111: the number appearing in the first image is identified using a preset image recognition algorithm.
Step S112: and determining the charging pile 300 time corresponding to the clock of the charging pile 300 according to the number identified from the first image.
It is to be understood that the image recognition algorithm for recognizing the number on the first image may be implemented by using the prior art, and will not be described in detail in this example. In the step, the image recognition algorithm is adopted to recognize the time of the charging pile 300 on the clock display interface of the charging pile 300, and the time of the charging pile 300 is directly used for comparing with standard time, so that the problem of accuracy reduction caused by untimely reaction in manual comparison is solved.
Step S120: the controller 100 determines the standard time meeting the preset accuracy.
Specifically, in step S120, the specific process of determining the standard time meeting the preset accuracy is as follows:
determining standard time meeting preset precision through a GPS receiving module 210; or
And determining standard time meeting preset precision through a network.
It should be noted that, the method for determining the standard time through the GPS receiving module 210 or the network is the prior art, and details are not described in this example.
Step S130: the controller 100 determines an error of the charging pile 300 time compared to the standard time.
In this embodiment, the controller 100 can automatically acquire the time reading of the clock of the charging pile 300 and automatically acquire the reading of the standard time by executing steps S100 to S130, and automatically compare the time reading and the reading of the standard time, thereby avoiding errors caused by manual comparison and improving the precision and efficiency of verification.
The embodiment of the device is as follows:
as shown in fig. 2, in one embodiment, there is provided a charging pile clock indication error calibrating apparatus, including:
the image acquisition module 110 is configured to acquire a first image of a clock display interface of the charging pile 300; the clock display interface is used for displaying a clock indication value of the charging pile 300;
the charging pile time determining module 120 is configured to determine, according to the first image, a charging pile 300 time corresponding to a clock of the charging pile 300;
a standard time determining module 130, configured to determine a standard time meeting a preset precision;
and an error determination module 140, configured to determine an error of the time of the charging pile 300 compared to the standard time.
As a further improvement, the image acquisition module 110 is further configured to:
the clock display interface of the charging pile 300 is photographed through the imaging device 220 to obtain a first image of the clock display interface of the charging pile 300.
As a further improvement, the charging pile time determination module 120 includes the following units:
the image recognition unit is used for recognizing numbers appearing in the first image by using a preset image recognition algorithm;
and a charging pile time determining unit for determining the charging pile 300 time corresponding to the clock of the charging pile 300 according to the number identified from the first image.
As a further improvement, the standard time determination module 130 includes the following units:
a GPS standard time determination unit for determining standard time meeting a preset accuracy through the GPS receiving module 210;
and the network standard time determining unit is used for determining the standard time meeting the preset precision through the network.
It should be noted that the device embodiment provided by the present invention and the method embodiment are based on the same inventive concept, and are not described herein again.
The embodiment of the equipment comprises:
as shown in fig. 3, in one embodiment, there is provided a charging pile clock indication error calibration apparatus, which includes a power supply module, a controller 100, and a video unit, a GPS receiving module 210, electrically connected to the controller 100, respectively; the video unit is used for shooting a clock display interface of the charging pile 300 to generate a first image of the clock display interface of the charging pile 300; the clock display interface is used for displaying a clock indication value of the charging pile 300; the power supply module is connected with an input power line and provides power for the GPS receiving module 210, the video unit, the controller 100 and the display unit; the GPS receiving module 210 is connected to the data processing unit by using an RS232 bus, and is used for timing with a GPS satellite, and serving as a standard clock of the calibrating apparatus, and determining standard time meeting a preset accuracy; the video unit is provided with a microscope with adjustable high magnification, so that the video unit can acquire image information of a clock on a clock display interface of the charging pile 300 by adjusting the focusing position of the microscope, and is communicated with the controller 100 through a USB bus. In particular, the device may be connected to a keyboard, which may be used to adjust the microscope focus distance of the video unit. Optionally, the communication modes of the GPS receiving module 210 and the processor include an RS485 bus, an RS232 bus, a CAN bus, a USB bus, and the like.
Specifically, the controller 100 is configured to process image information acquired by the video unit, determine whether to effectively acquire time of the charging pile 300 according to the image information, and read the time of the charging pile 300 according to the image information, the controller 100 is configured to read data from the GPS receiving module 210, acquire PPS (pulse per second, in chinese) of hardware by using a timer of the controller 100, establish a standard clock with an accuracy of us level, and the controller 100 is configured to determine a time difference between the standard clock and the charging pile 300, determine whether the time difference is within a reasonable range, and display a determination result on the display unit (i.e., display an LCD). Wherein 1 PPS-1 Hz-1 times/second; a one second pulse signal indicating the entire second time, which is usually indicated by the rising edge of the second pulse; the pulse per second precision can reach ns level and has no accumulated error.
The controller 100 is configured to perform the flow steps in the above method embodiment:
step S200: a first image of a clock display interface of the charging pile 300 is acquired.
Step S210: and determining the charging pile 300 time corresponding to the clock of the charging pile 300 according to the first image.
Step S220: a standard time meeting a preset accuracy is determined (it is understood that the order of step S210 and step S220 is not limited when performed).
Step S230: an error in the charging pile 300 time compared to the standard time is determined.
A preferred embodiment is provided below to illustrate the method flow of calibrating the indication error of the charging pile clock by using the apparatus for calibrating the indication error of the charging pile clock:
the preparation process comprises the following steps:
s1: firstly, manually reading the year, month, day, hour and minute on the charging pile 300 clock, and judging that the accuracy of the charging pile 300 clock does not meet the requirement if any one of the year, month, day, hour and minute is inconsistent with the year, month, day, hour and minute of the standard clock on the verification equipment;
s2: and if the year, month, day, hour and minute of the charging pile 300 clock are consistent with the year, month, day, hour and minute of the standard clock on the verification equipment, judging the time difference between the charging pile 300 clock and the standard clock by using the verification equipment.
Further, the specific flow of step S220 is as follows:
a1: the controller 100 sends a clock acquisition instruction to the GPS receiving module 210, and the GPS receiving module 210 updates standard clock data and returns standard clock information to the controller 100;
a2: to obtain clock synchronization of the us stage, the timer of the DSP processor in the controller 100 is set to an external event capture mode (capturing PPS second pulses), and when capturing of PPS pulses of one cycle is completed, the timer pulse width is made equal to the cycle of the PPS second pulses;
a3: in the external event capturing mode of the timer, the period and the pulse width of the timer are determined by a timer counter, the accuracy of the timer counter is determined by an internal 100MHz crystal oscillator of the DSP processor, and the accuracy of the crystal oscillator is high, so that the capturing time precision of the timer can reach 1/100M-10 ns, and the clock synchronization requirement of 1us can be met.
Specifically, in this example, the standard clock acquires the PPS of the hardware through the timer to establish the standard clock with the internal accuracy of us basic, and how to establish the standard clock with the accuracy of us level is an important contribution of the present invention. The microscope module is realized through the microscope of USB interface, and this microscope can be put 1 ~ 1000 times, and the definition is very high.
As shown in fig. 4, the standard clock is obtained as follows:
1) the time, the month, the day, the hour, the minute and the second directly reads the GPSTIme through the GPS receiving module 210.
Second time, which is sent after second pulse through UART.
2) The us-level clock implementation steps are as follows:
the timer is set to an external event capture mode (capturing PPS second pulses).
When the capture of a PPS pulse for one cycle is completed,
WIDTH is the WIDTH of the PPS pulse.
PERIOD is the PERIOD of a PPS second pulse. (through SCLK measurement, SCLK is 100MHz, as known in the art, SCLK is a serial clock signal, which is the basis of sequential logic, having a fixed clock frequency, which is the reciprocal of the clock period, and is not repeated here.)
At any time Tn in the capture of the PPS pulse.
Tn＝COUNTER*1/SCLK；
Tn ═ COUNTER × 10 ns; SCLK is 100 MHz;
since the accuracy of SCLK is determined by the crystal of the CPU, it can be calibrated by PERIOD.
The calibration coefficient x is 100M/PERIOD;
the calibrated Tnx values are:
Tnx＝COUNTER*1/SCLK*x；
COUNTER 10ns x; generally, the closer the value of x is to 1, the smaller the deviation of the accuracy of the crystal.
The processor reads the calculator value at any time as COUNTER and calculates Tnx as above.
TnX has a clock skew of 1/100M 0.01ppm 1 second 10ns relative to the gps.
The accuracy of tracking a global GPS clock at any time can be considered.
(4) Algorithmic recognition of time of second
The simplest method of a priori knowledge base can be used, the image of 0,1,2,3,4,5,6,7,8,9 is stored in a database for a plurality of font versions, then the cosine similarity formula is used for comparing the numbers of 0,1,2,3,4,5,6,7,8,9 of the plurality of font versions respectively, and the smallest value of t (n) (similarity) is the corresponding number.
During the test, the magnification of the microscope is adjusted to exactly align the tens and units of the second portion. Thus, we only need to take the first pixel to be the tens digit, and the later pixel to be the ones digit.
Let pixel f (n) of the image of each word (decimal or units of a second).
f (n): the image data of one word of the nth frame is represented as an array of M multiplied by N on the data architecture, wherein M is the number of video row points, and N is the number of video column points.
The cosine similarity is used to calculate the similarity T (n) of two frames of video.
The formula is as follows:
m: the number of lines shot by a microscope;
n: the number of column points shot by a microscope;
f (n): a pixel array of one word of an nth frame;
bxi: the pixel group of 0,1,2,3,4,5,6,7,9, the pixel group of the alphabets of the charging pile 300, which may be pre-registered in the field, x is 0 to 9 or more.
n: the number of video frames is n is more than or equal to 1;
t (n) value range: [ -1,1], the larger the value, the smaller the similarity.
The letter is the letter with the smallest t (n) value compared to Bxi.
f (n) to compare with all Bx, the smallest value of Tn is Bxi.
Bxi at least one image of letters 0-9 may be predicted, or multiple images may be predicted.
If 4 different version fonts are pre-stored, x of Bx is 0 to 39.
Further, the process of determining the charging pile 300 time corresponding to the clock of the charging pile 300 by using the image recognition algorithm in step S210 is as follows:
b1: because the year, month, day, hour and minute on the clock of the charging pile 300 are manually read and judged, the calibrating device does not judge the accuracy of the year, month, day, hour and minute on the clock of the charging pile 300 any more, but only judges the accuracy of the second on the clock of the charging pile 300;
b2: the video unit comprises an imaging device 220 and a microscope module which forms an imaging light path together with the imaging device 220, records clock information displayed on a screen of the charging pile 300, filters information of year, month, day, hour and minute through an algorithm, and only aims at a second identification algorithm;
b3: because a certain time error is allowed between the 300 clock of the charging pile and the standard clock in the detection of the charging pile 300, the allowed clock error is recorded as Y seconds, in order to avoid the verification error caused by the fact that the 300 clock of the charging pile jumps to 00 seconds from a time close to 59 seconds in the clock verification process, the second value interval of the 300 clock second value of the charging pile from 00 to 2Y is recorded as a first closing threshold value, and the second value interval of the 300 clock second value of the charging pile from (60-2Y) to 59 is recorded as a second closing threshold value. Therefore, in the algorithm, it can be determined that the clock accuracy of the charging pile 300 is judged only when the charging pile 300 second value read by the video unit is within the interval from the first closing threshold value to the second closing threshold value;
b4: the method for reading the 300 clock second value of the charging pile comprises the following steps: in the testing process, the magnification of the video unit microscope module is adjusted, so that the video unit is well focused to align to ten bits and one bit of a 300-clock-second part of the charging pile, and therefore, in an image acquired by the video unit, the former pixel is ten bits, and the latter pixel is corresponding to the latter one bit;
b5: the second value obtained by analyzing the pixels is checked by checking a database, namely, database images of 0,1,2,3,4,5,6,7,8 and 9 are stored in a plurality of fonts and a plurality of versions, then the data of 0,1,2,3,4,5,6,7,8 and 9 are compared by using a cosine similarity formula, and the data with the maximum similarity is judged as a corresponding numerical value, so that the second value of the charging pile 300 is judged.
In this embodiment, when the clock of the device is synchronized by the GPS, the program reads the absolute time scale by the pulse per second + serial port of the GPS, so that the accuracy of 1us can be achieved. Accuracy relative to 1 second can be considered a true value. The detected clock of the charging pile 300 is read through the video unit, and if the video has 60 frames per second, the delay is 16.7ms + the algorithm delay and is not more than 100 ms. Total error: the criterion is 1us + is checked as 100ms, fully meeting the requirements of 5 seconds accuracy and 1 second resolution.
In another embodiment, the GPS receiving module 210 in the calibration equipment for error indication of the charging pile clock is replaced by a network time synchronization mode, that is, the controller 100 obtains the standard time as the standard time of the calibration equipment by accessing the internet.
In summary, the inventive aspects of the present invention can be summarized as follows:
(1) the hardware capture of the DSP timer is combined with the algorithm to realize the standard clock (the accuracy is 0.01ppm x 1 second) of the global positioning system clock, establish the clock standard consistent with the global positioning, and realize the reading at any instruction and any time of the program, as long as the value of the COUNTER is read, the Tnx is calculated according to the algorithm.
(2) Verification step
1) Reading standard clock by GPS
If the value of the standard clock is greater than 50 seconds or less than 10 seconds,
the method waits until the second value of the standard clock is more than 50 seconds or less than 10 seconds when the time is matched.
2) Reading video images via USB
Dividing a video image into ten parts and one part;
setting letter images as f (n);
extracting a second value Seconddx through an algorithm;
comparing the second value with the second of the standard clock;
since the standard clock (secondb) can be accurate to us.
secondb＝Tnx/1000000+GPSTime.Second；
The clock verification error is
SecondErr＝INT(Secondx-(secondb+0.5))；
Remarking:
second Err: a calibrated clock error;
second: a clock value for the charge pile 300 to be tested (read by a camera);
second: 0.5 is to carry out rounding after the subtraction of the Secondx and the secondb;
INT: taking an integer.
In conclusion, the charging pile clock indication error calibration equipment provided by the invention can achieve the accuracy of 1us and has high time accuracy by using the absolute time scale read by the second pulse plus serial port of the GPS through the program when the GPS is used for time calibration. In addition, the detected charging pile clock is read through a video unit of the charging pile clock indication error verification equipment, the delay error is not more than 100ms, the time difference between the charging pile clock and the charging pile clock indication error verification equipment can be effectively judged, and the judgment of the accuracy of the charging pile clock is improved. The standard clock of the global positioning system clock is completely clocked through the hardware capture combination algorithm of the DSP timer, a clock system which is consistent with the global positioning is established, and the reading of any instruction and any time of a program is realized.
FIG. 5 is a diagram illustrating an internal structure of a computer device in one embodiment. The computer device may specifically be the controller 100 in fig. 2 or the BF609 chip in fig. 3. As shown in fig. 5, the computer device includes a processor, a memory, and a network interface connected by a system bus. Wherein the memory includes a non-volatile storage medium and an internal memory. The nonvolatile storage medium of the computer device stores an operating system and also stores a computer program, and when the computer program is executed by the processor, the processor can realize the method for calibrating the indication error of the charging pile clock. The internal memory may also store a computer program, and when the computer program is executed by the processor, the processor may execute the method for calibrating the indication error of the charging pile clock. Those skilled in the art will appreciate that the configuration shown in fig. 5 is a block diagram of only a portion of the configuration associated with aspects of the present invention and is not intended to limit the computing devices to which aspects of the present invention may be applied, and that a particular computing device may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, the charging pile clock indication error calibrating device provided by the application can be implemented in the form of a computer program, and the computer program can be run on computer equipment as shown in fig. 5. The memory of the computer device may store various program modules constituting the charging pile clock indication error verification apparatus, such as the image acquisition module 110, the charging pile time determination module 120, the standard time determination module 130, and the error determination module 140 shown in fig. 2. The computer program formed by the program modules enables the processor to execute the steps of the charging pile clock indication error calibration method of the embodiment of the application described in the specification.
For example, the computer device shown in fig. 5 may perform the step of acquiring the first image of the clock display interface of the charging pile 300 through the image acquiring module 110 in the charging pile clock indication error determination apparatus shown in fig. 2; wherein, the clock display interface is used for showing the clock indicating value of electric pile 300. The charging pile time determination module 120 performs a step of determining a charging pile 300 time corresponding to a clock of the charging pile 300 according to the first image. The standard time determination module 130 performs a step of determining a standard time that meets a preset precision. The error determination module 140 performs the step of determining an error of the charging pile 300 time compared to the standard time.
In one embodiment, there is provided an electronic device including: the device comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the processor executes the steps of the charging pile clock indication error calibration method when executing the program. The steps of the method for calibrating the indication error of the charging pile clock may be steps of the method for calibrating the indication error of the charging pile clock in each of the embodiments.
In one embodiment, a computer-readable storage medium is provided, which stores computer-executable instructions for causing a computer to perform the steps of the charging pile clock indication error calibration method. The steps of the method for calibrating the indication error of the charging pile clock may be steps of the method for calibrating the indication error of the charging pile clock in each of the embodiments.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a non-volatile computer-readable storage medium, and can include the processes of the embodiments of the methods described above when the program is executed. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), synchronous Link (Synchlink) DRAM (SLDRA), Rambus Direct RAM (RDRA), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
Claims (10)
1. A method for calibrating a clock indication error of a charging pile is characterized by comprising the following steps:
acquiring a first image of a clock display interface of the charging pile; the clock display interface is used for displaying a clock indication value of the charging pile;
determining charging pile time corresponding to a clock of a charging pile according to the first image;
determining standard time meeting preset precision;
and determining the error of the charging pile time compared with the standard time.
2. The method for calibrating the indication error of the charging pile clock according to claim 1, wherein the specific process of acquiring the first image of the clock display interface of the charging pile is as follows:
shooting a clock display interface of the charging pile through the imaging equipment so as to obtain a first image of the clock display interface of the charging pile.
3. The method for calibrating the indication error of the charging pile clock according to claim 1, wherein the specific process of determining the charging pile time corresponding to the charging pile clock according to the first image comprises the following steps:
identifying numbers appearing in the first image by using a preset image identification algorithm;
and determining the charging pile time corresponding to the clock of the charging pile according to the number identified from the first image.
4. The method for calibrating the indication error of the charging pile clock according to claim 1, wherein the specific process of determining the standard time meeting the preset precision is as follows:
determining standard time meeting preset precision through a GPS receiving module; or
And determining standard time meeting preset precision through a network.
5. The utility model provides a fill electric pile clock indication error calibrating installation which characterized in that, the device includes:
the image acquisition module is used for acquiring a first image of a clock display interface of the charging pile; the clock display interface is used for displaying a clock indication value of the charging pile;
the charging pile time determining module is used for determining charging pile time corresponding to a clock of the charging pile according to the first image;
the standard time determining module is used for determining standard time meeting preset precision;
and the error determination module is used for determining the error of the charging pile time compared with the standard time.
6. The charging pile clock indication error calibrating apparatus according to claim 5, wherein the image obtaining module is further configured to:
shooting a clock display interface of the charging pile through the imaging equipment so as to obtain a first image of the clock display interface of the charging pile.
7. The charging pile clock indication error calibrating apparatus according to claim 5, wherein the charging pile time determination module comprises the following units:
the image recognition unit is used for recognizing numbers appearing in the first image by using a preset image recognition algorithm;
and the charging pile time determining unit is used for determining the charging pile time corresponding to the clock of the charging pile according to the number identified from the first image.
8. The calibrating device for calibrating the indication error of the charging pile clock as claimed in claim 5, wherein the standard time determining module comprises the following units:
the GPS standard time determining unit is used for determining standard time meeting preset precision through the GPS receiving module;
and the network standard time determining unit is used for determining the standard time meeting the preset precision through the network.
9. The equipment for calibrating the indication error of the charging pile clock is characterized by comprising a controller, a video unit and a GPS receiving module, wherein the video unit and the GPS receiving module are respectively and electrically connected with the controller;
the video unit is used for shooting a clock display interface of the charging pile to generate a first image of the clock display interface of the charging pile; the clock display interface is used for displaying a clock indication value of the charging pile;
the GPS receiving module is used for determining standard time meeting preset precision;
the controller is used for:
acquiring a first image of a clock display interface of the charging pile;
determining charging pile time corresponding to a clock of a charging pile according to the first image;
determining standard time meeting preset precision;
and determining the error of the charging pile time compared with the standard time.
10. The charging pile clock indication error verification device as claimed in claim 9, wherein the video unit comprises an imaging device and a microscope module which forms an imaging optical path together with the imaging device.
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| CN202110421582.0A CN113126472A (en) | 2021-04-19 | 2021-04-19 | Method, device and equipment for calibrating indication value error of charging pile clock |
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| CN202110421582.0A CN113126472A (en) | 2021-04-19 | 2021-04-19 | Method, device and equipment for calibrating indication value error of charging pile clock |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113702737A (en) * | 2021-08-25 | 2021-11-26 | 山东省计量科学研究院 | Charging pile and testing method, device and equipment applied to charging pile |
| CN113702737B (en) * | 2021-08-25 | 2024-04-23 | 山东省计量科学研究院 | Charging pile and inspection method, device and equipment applied to charging pile |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050151849A1 (en) * | 2004-01-13 | 2005-07-14 | Andrew Fitzhugh | Method and system for image driven clock synchronization |
| US20130163822A1 (en) * | 2006-04-04 | 2013-06-27 | Cyclops Technologies, Inc. | Airborne Image Capture and Recognition System |
| CN104503221A (en) * | 2014-11-18 | 2015-04-08 | 深圳市金立通信设备有限公司 | Clock calibration method |
| US20190049904A1 (en) * | 2016-02-26 | 2019-02-14 | Eta Sa Manufacture Horlogere Suisse | Method for automatically adjusting a piece of time information on a watch |
| US20190250567A1 (en) * | 2015-12-16 | 2019-08-15 | Shenzhen Smartmovt Data Services Co., Ltd. | Automatic regular time service method and time service system for pointer type intelligent clock |
-
2021
- 2021-04-19 CN CN202110421582.0A patent/CN113126472A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050151849A1 (en) * | 2004-01-13 | 2005-07-14 | Andrew Fitzhugh | Method and system for image driven clock synchronization |
| US20130163822A1 (en) * | 2006-04-04 | 2013-06-27 | Cyclops Technologies, Inc. | Airborne Image Capture and Recognition System |
| CN104503221A (en) * | 2014-11-18 | 2015-04-08 | 深圳市金立通信设备有限公司 | Clock calibration method |
| US20190250567A1 (en) * | 2015-12-16 | 2019-08-15 | Shenzhen Smartmovt Data Services Co., Ltd. | Automatic regular time service method and time service system for pointer type intelligent clock |
| US20190049904A1 (en) * | 2016-02-26 | 2019-02-14 | Eta Sa Manufacture Horlogere Suisse | Method for automatically adjusting a piece of time information on a watch |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113702737A (en) * | 2021-08-25 | 2021-11-26 | 山东省计量科学研究院 | Charging pile and testing method, device and equipment applied to charging pile |
| CN113702737B (en) * | 2021-08-25 | 2024-04-23 | 山东省计量科学研究院 | Charging pile and inspection method, device and equipment applied to charging pile |
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Application publication date: 20210716 |