CN117523687A - Anti-cheating method and device for taximeter, taximeter and medium - Google Patents
Anti-cheating method and device for taximeter, taximeter and medium Download PDFInfo
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- CN117523687A CN117523687A CN202410006014.8A CN202410006014A CN117523687A CN 117523687 A CN117523687 A CN 117523687A CN 202410006014 A CN202410006014 A CN 202410006014A CN 117523687 A CN117523687 A CN 117523687A
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- 238000000034 method Methods 0.000 title claims abstract description 45
- 238000001514 detection method Methods 0.000 claims abstract description 58
- 238000006243 chemical reaction Methods 0.000 claims abstract description 46
- 238000012360 testing method Methods 0.000 claims description 22
- 238000007689 inspection Methods 0.000 claims description 6
- 230000029305 taxis Effects 0.000 claims description 3
- 238000004590 computer program Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000002265 prevention Effects 0.000 description 5
- 230000004044 response Effects 0.000 description 5
- 230000006870 function Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 230000006399 behavior Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000004422 calculation algorithm Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
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- 238000012545 processing Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
- G07B13/00—Taximeters
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
Abstract
The invention discloses a method and a device for preventing cheating of a taximeter, the taximeter and a medium, wherein the method comprises the following steps: responding to stopping charging of the taximeter, and acquiring the driving mileage from the start of charging to the stop of charging based on the detection data of the taxies; acquiring the display mileage of the meter when the charging is stopped; calculating the product of a pre-calibrated mileage conversion coefficient and the mileage to obtain a converted mileage, wherein the mileage conversion coefficient is used for representing the proportional relation between the mileage and the display mileage of the valuator; calculating the ratio between the display mileage and the converted mileage, and generating and outputting an alarm signal when the ratio exceeds a preset threshold value. Whether the price meter is cheating or not can be effectively judged according to the deviation degree of the display mileage and the converted mileage of the price meter.
Description
Technical Field
The invention relates to the technical field of taximeter, in particular to a method and a device for preventing cheating of a taximeter, the taximeter and a medium.
Background
The taximeter is used as a metering device for measuring duration and mileage according to signals transmitted by the mileage measuring sensor, and calculates and displays the charge paid by the passenger during the taxi based on the measured time and mileage.
Some people use cheating means such as accessing a pulse generator, replacing small tires, reducing the number of teeth of a driving wheel connected with a mileage measuring sensor, and the like to increase the driving mileage and obtain more charges. These cheating means are hidden and difficult to directly detect.
At present, the driving mileage of a taxi is calculated by adopting satellite positioning, and then the driving mileage is compared with the mileage of a taximeter to determine whether the taximeter is cheated. However, satellite signals may be obscured, resulting in deviations in calculated mileage, and an inability to effectively determine whether the meter is cheating.
Accordingly, there is a need for improvement and advancement in the art.
Disclosure of Invention
The invention mainly aims to provide a method and a device for preventing cheating of a taximeter, the taximeter and a computer readable storage medium, and aims to solve the problem that whether the taximeter is cheated or not cannot be effectively judged.
To achieve the above object, a first aspect of the present invention provides a method for preventing cheating in a taximeter, the method including:
responding to stopping charging of the taximeter, and acquiring the driving mileage from the start of charging to the stop of charging based on the detection data of the taxies;
acquiring the display mileage of the meter when the charging is stopped;
calculating the product of a pre-calibrated mileage conversion coefficient and the mileage to obtain a converted mileage, wherein the mileage conversion coefficient is used for representing the proportional relation between the mileage and the display mileage of the valuator;
calculating the ratio between the display mileage and the converted mileage, and generating and outputting an alarm signal when the ratio exceeds a preset threshold value.
Optionally, the acquiring the driving mileage from charging start to charging stop based on the detection data of the taxi includes:
based on a preset time interval, acquiring the real-time speed of the taxi from the start of charging to the stop of charging through a CAN bus;
and calculating the integral area of all the real-time vehicle speeds to obtain the driving mileage.
Optionally, the step of pre-calibrating the mileage conversion coefficient includes:
and when the taximeter is subjected to inspection, calculating the ratio between the mileage obtained according to the detection data of the taximeter and the mileage obtained according to the detection data of the taximeter under the same mileage, and obtaining the mileage conversion coefficient.
Optionally, the calculating the ratio between the mileage obtained according to the detection data of the taximeter and the mileage obtained according to the detection data of the taxi under the same mileage to obtain the mileage conversion coefficient includes:
the method comprises the steps that a taxi respectively runs on a plurality of roads with different road conditions for a preset period of time, a first test mileage is obtained according to detection data of a taximeter, a second test mileage is obtained according to detection data of the taxi, and the ratio of the first test mileage to the second test mileage is calculated to obtain a plurality of coefficients;
and calculating the average value of all the coefficients to obtain the mileage conversion coefficient.
Optionally, obtaining mileage according to the detection data of the taxi includes:
and connecting a vehicle odometer through a CAN bus to obtain the mileage.
The second aspect of the present invention provides a device for preventing cheating in a taximeter, comprising:
the driving mileage module is used for responding to stopping charging of the taximeter and acquiring driving mileage from the start of charging to the stop of charging based on the detection data of the taxies;
the meter display mileage module is used for acquiring the display mileage of the meter when the charging is stopped;
the mileage conversion module is used for calculating the product of a pre-calibrated mileage conversion coefficient and the driving mileage to obtain the converted mileage, and the mileage conversion coefficient is used for representing the proportional relation between the driving mileage and the display mileage of the valuator;
and the comparison module is used for calculating the ratio between the display mileage and the converted mileage, and generating and outputting an alarm signal when the ratio exceeds a preset threshold value.
Optionally, the driving mileage module includes a real-time vehicle speed unit and an area solving unit, the real-time vehicle speed unit is used for acquiring the real-time vehicle speed of the taxi from the start of charging to the stop of charging through the CAN bus based on a preset time interval, and the area solving unit is used for calculating the integral area of all the real-time vehicle speeds to obtain the driving mileage.
Optionally, the system further comprises a calibration module, wherein the calibration module is used for calculating the ratio between the mileage obtained according to the detection data of the taximeter and the mileage obtained according to the detection data of the taximeter under the same mileage when the taximeter is sent for inspection, so as to obtain the mileage conversion coefficient.
The third aspect of the present invention provides a taximeter, the taximeter including a memory, a processor, and a taximeter anti-cheating program stored in the memory and operable on the processor, the taximeter anti-cheating program implementing any one of the steps of the taximeter anti-cheating method when executed by the processor.
A fourth aspect of the present invention provides a computer readable storage medium, on which a taximeter anti-cheating program is stored, the taximeter anti-cheating program implementing the steps of any one of the taximeter anti-cheating methods when executed by a processor
From the above, the invention calibrates the mileage conversion coefficient between the display mileage of the meter and the driving mileage calculated according to the detection data of the taxi in advance, and converts the driving mileage calculated according to the detection data of the taxi into the converted mileage which the meter should display in the taxi charging period through the mileage conversion coefficient, thereby effectively judging whether the meter is cheating according to the display mileage of the meter and the deviation degree of the converted mileage.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments or the description of the prior art 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 other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic flow chart of a method for preventing cheating of a taximeter according to an embodiment of the invention;
FIG. 2 is a flow chart of an embodiment of calculating a range from a vehicle speed;
FIG. 3 is a flow chart of an embodiment of calibrating mileage conversion coefficients;
FIG. 4 is a functional block diagram of a device for preventing cheating of a taximeter according to an embodiment of the present invention;
fig. 5 is a schematic block diagram of an internal structure of a taximeter according to an embodiment of the present invention.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, techniques, etc., in order to provide a thorough understanding of the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
It should be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
As used in this specification and the appended claims, the term "if" may be interpreted in context as "when …" or "upon" or "in response to a determination" or "in response to detection. Similarly, the phrase "if a condition or event described is determined" or "if a condition or event described is detected" may be interpreted in the context of meaning "upon determination" or "in response to determination" or "upon detection of a condition or event described" or "in response to detection of a condition or event described".
The following description of the embodiments of the present invention will be made more fully hereinafter with reference to the accompanying drawings, in which embodiments of the invention are shown, it being evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
The metering of the display mileage of the taximeter is realized by the pulse signal of the sensor, and a plurality of cheating phenomena of multi-meter mileage and multi-charge of the taximeter are currently realized by disturbing the pulse signal of the sensor. Common examples are: the pulse generator is connected, the small tyre is replaced, the number of teeth of a driving wheel connected with the mileage measuring sensor is reduced, and the like.
Aiming at the problem that the existing anti-cheating method for taxies cannot effectively judge whether a price meter is cheated or not, the invention is based on the vehicle running data recorded by a vehicle Engine Control Unit (ECU), such as the detection data of the speed, the rotation speed of the engine and the like, the cheating cannot be performed, and the mileage calculated according to the detection data is accurate. An internal connection between the method of calculating mileage by the taximeter and the method of calculating mileage based on the detection data of the taxicab has been found through the study. The specific relation between the mileage calculated by the meter and the mileage calculated according to the detection data of the taxi is calibrated in advance, and the mileage calculated according to the detection data of the taxi is converted into the correct mileage which the meter should display through the specific relation in the taxi charging time period, so that whether the meter is cheated or not is effectively judged according to the deviation degree of the mileage calculated by the meter and the correct mileage.
The embodiment of the invention provides a method for preventing cheating of a taximeter, which runs on a main control chip of the taximeter and can judge whether the taximeter is cheated or not in real time, as shown in fig. 1, the specific steps comprise:
step S100: responding to stopping charging of the taximeter, and acquiring the driving mileage from the start of charging to the stop of charging based on the detection data of the taxies;
the detection data of the taxi comprises the following steps: speed, acceleration, etc. of the taxi, which may be obtained via CAN (Controller Area Network) bus. After the driver presses a stop button in the taximeter or lifts a meter to stop charging, the driving mileage from the start of charging to the stop of charging can be calculated according to the detection data of the taxi.
In this embodiment, as shown in fig. 2, the driving mileage is calculated by the vehicle speed, and the specific steps include:
step S110: based on a preset time interval, acquiring the real-time speed of the taxi from the start of charging to the stop of charging through a CAN bus;
step S120: and calculating the integral area of all the real-time vehicle speeds to obtain the driving mileage.
The method comprises the steps of connecting a vehicle engine control unit through a CAN bus, continuously acquiring real-time vehicle speed of a taxi from the vehicle engine control unit (for example, acquiring the real-time vehicle speed every 2 seconds) during the period from the start of charging to the stop of charging, establishing a coordinate system by taking time as an abscissa and taking the vehicle speed as an ordinate, displaying all recorded real-time vehicle speeds in the coordinate system and connecting the recorded real-time vehicle speeds into a curve, and calculating the area between the curve and the abscissa according to an integral area calculating method, namely calculating the integral area of all real-time vehicle speeds, so that the driving mileage CAN be obtained. Specifically, the vehicle mileage can be calculated by integrating each real-time vehicle speed, calculating the distance traveled by the vehicle in each time interval, and accumulating the calculated distances.
The mileage recorded in the vehicle odometer is obtained by measuring the rotation calculation of the vehicle tyre through the vehicle sensor, and the change of the diameter and circumference of the wheel, the change of the tyre pressure, the refitting of the hub, the replacement of the tyres of different types and the abrasion of the tyres can directly influence the data accuracy of the vehicle odometer. That is, when a small tire is replaced, data in the vehicle odometer is also affected by cheating, and whether the price meter is cheated cannot be accurately determined; and the vehicle speed is calculated by calculating the number of rotations of the drive shaft. Even if the cheating means is adopted, the speed of the vehicle is not influenced. Therefore, the driving mileage is directly calculated from the vehicle speed, so that the accuracy of the driving mileage can be ensured, and the driving mileage is not influenced by cheating behaviors.
Step S200: acquiring the display mileage of the meter when the charging is stopped;
the anti-cheating method of the taximeter is operated on the main control chip of the taximeter, and can directly obtain the display mileage of the taximeter when the charging is stopped; if running on the control unit of the vehicle (engine control unit, body control unit, etc.), the display mileage of the meter at the time of stopping the charging can be obtained by accessing the background system for monitoring and managing the taxis; and the wireless data communication and the hardware interface of various short-distance and long-distance wireless data communication such as Bluetooth, wifi and zigbee can be used for carrying out wired data communication so as to read mileage numbers displayed on a display screen of the meter and obtain the display mileage of the meter when the meter stops being charged.
Step S300: calculating the product of a pre-calibrated mileage conversion coefficient and a mileage to obtain a converted mileage, wherein the mileage conversion coefficient is used for representing the proportional relation between the mileage and the display mileage of the price meter;
the mileage calculation formula of the taximeter is: target value = number of pulse signals collected by the sensor/standard pulse value k (1 km). The number of pulse signals is determined by the size of the vehicle tire and the rotational speed of the vehicle tire. The calculation formula of the display mileage of the taximeter can be equivalently: s=knl, wherein: k is a coefficient, N is the number of turns of the wheel, and L is the circumference of the wheel.
The vehicle speed is also related to the number of turns of the wheel and the circumference of the wheel, and therefore, when calculating the driving range from the vehicle speed, it can be equivalently expressed as: s ' =k ' NL, where K ' is a coefficient, N is the number of turns of the wheel, and L is the circumference of the wheel. From the two formulas, a proportional relationship, namely a mileage conversion coefficient, exists between the method of calculating the mileage by the taximeter and the method of calculating the mileage according to the detection data of the taxi. And obtaining the mileage conversion coefficient by solving the ratio between K and K' under the same mileage.
Specifically, the taximeter belongs to a metering device for forced verification, and a taxi operator must periodically send the vehicle to legal metering technical institutions designated by local quality supervision departments every year to periodically verify the taximeter. Only the taximeter meeting the requirement of the metering verification rule can be used continuously, and the unqualified taximeter is not allowed to be used. Therefore, in the embodiment, the mileage conversion coefficient is marked when the taximeter is sent to be inspected, namely, the ratio between the mileage obtained according to the detection data of the taximeter and the mileage obtained according to the detection data of the taximeter under the same mileage is calculated, and the mileage conversion coefficient is obtained.
In order to improve the accuracy of the mileage conversion factor, considering that there is a certain error in the data captured by the vehicle sensor, in one embodiment, as shown in fig. 3, the specific steps of calibrating the mileage conversion factor include:
step S310: the method comprises the steps that a taxi respectively runs on a plurality of roads with different road conditions for a preset period of time, a first test mileage is obtained according to detection data of a taximeter, a second test mileage is obtained according to the detection data of the taxi, and the ratio of the first test mileage to the second test mileage is calculated to obtain a plurality of coefficients;
step S320: and calculating the average value of all the coefficients to obtain the mileage conversion coefficient.
When the mileage conversion coefficient is calibrated, the taxi is allowed to run on roads with different road conditions, the first test mileage is read from the detection data of the taximeter, and the second test mileage is obtained according to the detection data of the taxi. Because the taxi meter is verified, the mileage data in the vehicle odometer is accurate, the second test mileage can be calculated by adopting the steps of the steps S110-S120, and the mileage read in the vehicle odometer at the end of driving can be subtracted from the mileage read in the vehicle odometer at the beginning of driving to obtain the second test mileage. And then calculating the ratio of the first test mileage to the second test mileage under each road condition to obtain a plurality of coefficients, and taking the average value of all the coefficients to obtain mileage conversion coefficients. It should be noted that the preset duration of running on the road of each road condition may be the same or different.
The mileage conversion coefficient is calibrated under different road conditions, so that the influence of different road conditions on factors such as tire pressure, vehicle speed, a braking system and the like can be considered, the mileage conversion coefficient is more accurate, and different driving environments can be better adapted.
After obtaining the mileage conversion coefficient, the mileage conversion coefficient is multiplied by the mileage, so that the mileage can be converted into a converted mileage (i.e., the correct mileage that should be displayed on the meter).
Step S400: calculating the ratio between the display mileage of the price meter and the converted mileage, and generating and outputting an alarm signal when the ratio exceeds a preset threshold value.
The aim of cheating the taximeter is to enable the taximeter to display a larger mileage value, the converted mileage is the correct mileage which the taximeter should display, when the ratio between the displayed mileage of the taximeter and the converted mileage exceeds a preset threshold value, the cheating behavior of the taximeter is indicated, at this time, an alarm signal is generated and sent to an alarm device of a monitoring background and/or the taximeter, wherein the alarm device of the taximeter is not limited, and can be a loudspeaker for sending out prompt tones or a display screen for displaying warning characters.
As described above, the present embodiment determines in advance the ratio between the driving distance calculated by these data and the displayed distance of the taximeter based on the vehicle detection data that is not to be cheated and then calculates the driving distance when the taximeter stops charging each time, and compares it with the displayed distance of the taximeter, thereby effectively determining whether the taximeter is cheated and reminding the customer in time.
The invention also provides a cheating prevention device of the taximeter, as shown in fig. 4, the device comprises:
a driving mileage module 600 for acquiring driving mileage from start of charging to stop of charging based on detection data of the taxi in response to stop of charging by the meter;
a meter display mileage module 610 for acquiring a display mileage of the meter when the charging is stopped;
the converted mileage module 620 is configured to calculate a product of a pre-calibrated mileage conversion coefficient and the mileage to obtain a converted mileage, where the mileage conversion coefficient is used to characterize a proportional relationship between the mileage and a displayed mileage of the meter;
and the comparison module 630 is used for calculating the ratio between the display mileage and the converted mileage, and generating and outputting an alarm signal when the ratio exceeds a preset threshold value.
Optionally, the driving mileage module 600 includes a real-time vehicle speed unit and an area solving unit, where the real-time vehicle speed unit is configured to obtain, based on a preset time interval, a real-time vehicle speed of the taxi from charging start to charging stop through the CAN bus, and the area solving unit is configured to calculate an integrated area of all the real-time vehicle speeds, so as to obtain the driving mileage.
Optionally, the system further comprises a calibration module, wherein the calibration module is used for calculating the ratio between the mileage obtained according to the detection data of the taximeter and the mileage obtained according to the detection data of the taximeter under the same mileage when the taximeter is sent for inspection, so as to obtain the mileage conversion coefficient.
Specifically, in this embodiment, the specific function of the anti-cheating device of the taximeter may refer to the corresponding description in the anti-cheating method of the taximeter, which is not described herein again.
Based on the above embodiment, the present invention also provides a taximeter, and a schematic block diagram thereof may be shown in fig. 5. The taximeter comprises a processor, a memory, a network interface and a display screen which are connected through a system bus. Wherein the processor of the taximeter is used to provide computing and control capabilities. The memory of the taximeter comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a cheating prevention program for a taximeter. The internal memory provides an environment for the operation of the operating system and the anti-cheating program of the taximeter in the nonvolatile storage medium. The network interface of the taximeter is used for communicating with an external terminal through network connection. The method for preventing cheating of the taximeter comprises the step of realizing any one of the method for preventing cheating of the taximeter when the program for preventing cheating of the taximeter is executed by a processor. The display of the meter may be a liquid crystal display or an electronic ink display.
It will be appreciated by those skilled in the art that the schematic block diagram shown in fig. 5 is merely a block diagram of some of the structures associated with the present inventive arrangements and is not limiting of the tariffs to which the present inventive arrangements are applied, and that a particular tariff may include more or fewer components than shown, or may combine some of the components, or have a different arrangement of components.
In one embodiment, a taximeter is provided, the taximeter including a memory, a processor, and a taximeter anti-cheating program stored on the memory and operable on the processor, the taximeter anti-cheating program executing by the processor with instructions to:
responding to stopping charging of the taximeter, and acquiring the driving mileage from the start of charging to the stop of charging based on the detection data of the taxies;
acquiring the display mileage of the meter when the charging is stopped;
calculating the product of a pre-calibrated mileage conversion coefficient and the mileage to obtain a converted mileage, wherein the mileage conversion coefficient is used for representing the proportional relation between the mileage and the display mileage of the valuator;
calculating the ratio between the display mileage and the converted mileage, and generating and outputting an alarm signal when the ratio exceeds a preset threshold value.
Optionally, the acquiring the driving mileage from charging start to charging stop based on the detection data of the taxi includes:
based on a preset time interval, acquiring the real-time speed of the taxi from the start of charging to the stop of charging through a CAN bus;
and calculating the integral area of all the real-time vehicle speeds to obtain the driving mileage.
Optionally, the step of pre-calibrating the mileage conversion coefficient includes:
and when the taximeter is subjected to inspection, calculating the ratio between the mileage obtained according to the detection data of the taximeter and the mileage obtained according to the detection data of the taximeter under the same mileage, and obtaining the mileage conversion coefficient.
Optionally, the calculating the ratio between the mileage obtained according to the detection data of the taximeter and the mileage obtained according to the detection data of the taxi under the same mileage to obtain the mileage conversion coefficient includes:
the method comprises the steps that a taxi respectively runs on a plurality of roads with different road conditions for a preset period of time, a first test mileage is obtained according to detection data of a taximeter, a second test mileage is obtained according to detection data of the taxi, and the ratio of the first test mileage to the second test mileage is calculated to obtain a plurality of coefficients;
and calculating the average value of all the coefficients to obtain the mileage conversion coefficient.
Optionally, obtaining mileage according to the detection data of the taxi includes:
and connecting a vehicle odometer through a CAN bus to obtain the mileage.
The embodiment of the invention also provides a computer readable storage medium, wherein the computer readable storage medium stores a cheating prevention program of the taximeter, and the cheating prevention program of the taximeter realizes the steps of any one of the cheating prevention methods of the taximeter provided by the embodiment of the invention when being executed by a processor.
It should be understood that the sequence number of each step in the above embodiment does not mean the sequence of execution, and the execution sequence of each process should be determined by its function and internal logic, and should not be construed as limiting the implementation process of the embodiment of the present invention.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions. The functional units and modules in the embodiment may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit, where the integrated units may be implemented in a form of hardware or a form of a software functional unit. In addition, the specific names of the functional units and modules are only for distinguishing from each other, and are not used for limiting the protection scope of the present invention. The specific working process of the units and modules in the above system may refer to the corresponding process in the foregoing method embodiment, which is not described herein again.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and in part, not described or illustrated in any particular embodiment, reference is made to the related descriptions of other embodiments.
Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus/terminal device and method may be implemented in other manners. For example, the apparatus/terminal device embodiments described above are merely illustrative, e.g., the division of the modules or units described above is merely a logical function division, and may be implemented in other manners, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed.
The integrated modules/units described above, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer-readable storage medium. Based on such understanding, the present invention may implement all or part of the flow of the method of the above embodiment, or may be implemented by a computer program to instruct related hardware, where the computer program may be stored in a computer readable storage medium, and when the computer program is executed by a processor, the steps of each method embodiment may be implemented. The computer program comprises computer program code, and the computer program code can be in a source code form, an object code form, an executable file or some intermediate form and the like. The computer readable medium may include: any entity or device capable of carrying the computer program code described above, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer Memory, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), an electrical carrier signal, a telecommunications signal, a software distribution medium, and so forth. The content of the computer readable storage medium can be appropriately increased or decreased according to the requirements of the legislation and the patent practice in the jurisdiction.
The above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that; the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions are not intended to depart from the spirit and scope of the various embodiments of the invention, which are also within the spirit and scope of the invention.
Claims (10)
1. The anti-cheating method for the taximeter is characterized by comprising the following steps of:
responding to stopping charging of the taximeter, and acquiring the driving mileage from the start of charging to the stop of charging based on the detection data of the taxies;
acquiring the display mileage of the meter when the charging is stopped;
calculating the product of a pre-calibrated mileage conversion coefficient and the mileage to obtain a converted mileage, wherein the mileage conversion coefficient is used for representing the proportional relation between the mileage and the display mileage of the valuator;
calculating the ratio between the display mileage and the converted mileage, and generating and outputting an alarm signal when the ratio exceeds a preset threshold value.
2. The method for preventing cheating in a taximeter as in claim 1, wherein the acquiring the mileage from the start of the billing to the stop of the billing based on the detection data of the taxis comprises:
based on a preset time interval, acquiring the real-time speed of the taxi from the start of charging to the stop of charging through a CAN bus;
and calculating the integral area of all the real-time vehicle speeds to obtain the driving mileage.
3. The anti-cheating method of a taximeter as in claim 1, wherein the step of pre-calibrating the mileage conversion factor comprises:
and when the taximeter is subjected to inspection, calculating the ratio between the mileage obtained according to the detection data of the taximeter and the mileage obtained according to the detection data of the taximeter under the same mileage, and obtaining the mileage conversion coefficient.
4. The anti-cheating method of a taximeter according to claim 3, wherein the calculating a ratio between the mileage obtained according to the detection data of the taximeter and the mileage obtained according to the detection data of the taximeter under the same mileage to obtain the mileage conversion coefficient includes:
the method comprises the steps that a taxi respectively runs on a plurality of roads with different road conditions for a preset period of time, a first test mileage is obtained according to detection data of a taximeter, a second test mileage is obtained according to detection data of the taxi, and the ratio of the first test mileage to the second test mileage is calculated to obtain a plurality of coefficients;
and calculating the average value of all the coefficients to obtain the mileage conversion coefficient.
5. The anti-cheating method of a taximeter as in claim 3, wherein obtaining mileage based on detection data of a taxi comprises:
and connecting a vehicle odometer through a CAN bus to obtain the mileage.
6. Anti-cheating device of taximeter, which is characterized by comprising:
the driving mileage module is used for responding to stopping charging of the taximeter and acquiring driving mileage from the start of charging to the stop of charging based on the detection data of the taxies;
the meter display mileage module is used for acquiring the display mileage of the meter when the charging is stopped;
the mileage conversion module is used for calculating the product of a pre-calibrated mileage conversion coefficient and the driving mileage to obtain the converted mileage, and the mileage conversion coefficient is used for representing the proportional relation between the driving mileage and the display mileage of the valuator;
and the comparison module is used for calculating the ratio between the display mileage and the converted mileage, and generating and outputting an alarm signal when the ratio exceeds a preset threshold value.
7. The anti-cheating device of the taximeter according to claim 6, wherein the driving mileage module comprises a real-time vehicle speed unit and an area solving unit, the real-time vehicle speed unit is used for acquiring the real-time vehicle speed of the taxis from the start of charging to the stop of charging through the CAN bus based on a preset time interval, and the area solving unit is used for calculating the integral area of all the real-time vehicle speeds to obtain the driving mileage.
8. The anti-cheating device of the taximeter as in claim 6, further comprising a calibration module for calculating a ratio between a mileage obtained from detection data of the taximeter and a mileage obtained from detection data of the taximeter at the same mileage when the taximeter is sent for inspection, and obtaining the mileage conversion coefficient.
9. A taximeter comprising a memory, a processor, and a taximeter anti-cheating program stored on the memory and operable on the processor, the taximeter anti-cheating program when executed by the processor implementing the steps of the taximeter anti-cheating method of any of claims 1-5.
10. A computer readable storage medium, wherein a taximeter anti-cheating program is stored on the computer readable storage medium, and the taximeter anti-cheating program, when executed by a processor, implements the steps of the taximeter anti-cheating method according to any one of claims 1-5.
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