CN117952142B - CPC card number detection device and CPC card number detection method - Google Patents
CPC card number detection device and CPC card number detection method Download PDFInfo
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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- G01R33/12—Measuring magnetic properties of articles or specimens of solids or fluids
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- G—PHYSICS
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- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
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- G06M1/27—Design features of general application for representing the result of count in the form of electric signals, e.g. by sensing markings on the counter drum
- G06M1/274—Design features of general application for representing the result of count in the form of electric signals, e.g. by sensing markings on the counter drum using magnetic means; using Hall-effect devices
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- G—PHYSICS
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- G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
- G07B15/00—Arrangements or apparatus for collecting fares, tolls or entrance fees at one or more control points
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Abstract
The application provides a CPC card quantity detection device and a CPC card quantity detection method, and relates to the field of automatic card issuing, wherein the device comprises a card bin, a card slot, a balancing weight and a sensor circuit board; a plurality of sensors arranged on the sensor circuit board are linearly arranged at equal intervals on the rear side of the card bin; the clamping groove is arranged at the front side of the clamping bin; the balancing weight is arranged at the uppermost end of the stacked CPC cards; the card bin is used for placing the balancing weight, the CPC card and the sensor circuit board; the clamping groove is an operation space for manually adding the CPC card; the balancing weight is provided with a bar magnet; and the sensor is used for detecting the magnetic force value of the magnetic field emitted by the balancing weight. The device can detect the magnetic force value that the balancing weight sent through the sensor, confirms card quantity in the card storehouse in real time, has realized the real-time supervision to card quantity in the card storehouse, helps mending card personnel to prepare in advance to mend card work, improves mending card personnel's work efficiency, and then has improved the passing efficiency of vehicle in the lane.
Description
Technical Field
The application relates to the field of automatic card issuing, in particular to a CPC card number detection device and a CPC card number detection method.
Background
The automatic card issuing equipment in the present automatic card issuing robot all adopts vertical card storehouse combination card supply mode, and is current, does not have reliable and stable on-line real-time detection device, acquires the card quantity in every card storehouse in real time, needs the toll station staff to patrol at regular time and examine the back to the card storehouse that card quantity is not enough, leads to staff's work efficiency low, and the staff just discovers card storehouse at regular time when the card is out and lacks the card, and card issuing robot shut down and wait to mend the card this moment, and the vehicle need wait to mend the card and accomplish in the lane when mending the card, influences lane traffic efficiency.
Disclosure of Invention
The embodiment of the application aims to provide a CPC card number detection device and a CPC card number detection method, which are used for solving the problems in the prior art and obtaining the card number with higher accuracy.
In a first aspect, a CPC card quantity detection apparatus is provided, the apparatus including a card bin, a card slot, a balancing weight, and a sensor circuit board;
The sensor circuit board is provided with a plurality of sensors which are linearly arranged at equal intervals, and the sensor circuit board is positioned at the rear side of the card bin; the clamping groove is arranged at the front side of the clamping bin; the balancing weight is arranged at the uppermost end of the stacked CPC cards;
The card bin is used for placing the balancing weight, the CPC card and the sensor circuit board;
The clamping groove is an operation space for manually adding the CPC card;
the balancing weight is provided with a strip magnet and is used for applying gravity to the CPC card and can emit a magnetic field; the balancing weight moves up and down along with the quantity change of the CPC cards;
The central axis of the balancing weight is vertically intersected with the central connecting line of the sensor, and the up-and-down movement track of the central axis of the balancing weight coincides with the central connecting line of the sensor; the central axis of the balancing weight is the central axis of the balancing weight parallel to the long side, namely the central axis of the bar magnet parallel to the long side; the sensor center connecting line is a connecting straight line of center points of all sensors on the sensor circuit board;
the sensor is used for detecting the magnetic force value of the magnetic field emitted by the balancing weight.
In one possible implementation, the sensor circuit board is configured to determine, according to a magnetic force value of a magnetic field emitted by the balancing weight detected by the sensor, a distance between a position of a central axis of the balancing weight and a card end position, so as to determine the number of cards in the card bin.
In one possible implementation, the balancing weight is of a cuboid structure;
the balancing weight comprises a magnet cover, a strip magnet, a balancing weight main body and a plurality of countersunk head screws;
the magnet cover and the plurality of countersunk head screws fix the bar magnet at the center of the balancing weight body.
In a second aspect, a method for detecting the number of CPC cards is provided, which is applied to the apparatus of any one of the first aspects, and the method may include:
When the unknown number of CPC cards exist in the card bin, the balancing weight is positioned at a target position and emits a magnetic field, and a first target magnetic force value and a second target magnetic force value in a target magnetic force value sequence are obtained; the target magnetic force value sequence comprises magnetic force values detected by a plurality of sensors on a magnetic field emitted by the balancing weight; the first target magnetic force value is the maximum value in the target magnetic force value sequence, the second target magnetic force value is the maximum value in other magnetic force values except the first target magnetic force value in the target magnetic force value sequence, a detection sensor corresponding to the first target magnetic force value is set as a first target sensor, a detection sensor corresponding to the second target magnetic force value is set as a second target sensor, and the first target sensor is adjacent to the second target sensor;
when the target positions are any CPC card number, the central axis of the balancing weight is positioned at the position to be measured;
Calculating the first target magnetic force value and the second target magnetic force value by adopting a magnetic force distance algorithm to obtain a target distance of the position of the central axis of the balancing weight relative to the offset of the first target sensor to the second target sensor;
And calculating the first target sensor ID, the first reference sensor ID, the target distance and the reference distance by adopting a card number algorithm to obtain the number of cards, and sending prompt information comprising the number of cards, wherein the reference distance is the distance of the position of the central axis of the balancing weight, when the number of cards is 0, relative to the first reference sensor, to the second reference sensor.
In one possible implementation, the magnetic distance algorithm is:
Sxy=（y-x）×[+/>（1-/>）]×Sq
Wherein Sxy denotes a target distance, y denotes a second target sensor ID, x denotes a first target sensor ID, vmx denotes a magnetic force peak value preliminarily calibrated by the first target sensor, vx denotes a first target magnetic force value detected by the first target sensor, vmy denotes a magnetic force peak value preliminarily calibrated by the second target sensor, vy denotes a second target magnetic force value detected by the second target sensor, and Sq denotes a distance between adjacent sensors.
In one possible implementation, the card quantity algorithm is:
N=[Sq×(x-p)+Sxy+Spr]/a
Wherein N is the number of cards, sq× (x-p) represents the distance between a first target sensor of the balancing weight at the target position and a first reference sensor of the clamped position, x represents a first target sensor ID, p represents a first reference sensor ID, sxy represents the target distance, a is the card thickness, spr represents the reference distance of the position of the central axis of the balancing weight relative to the first reference sensor to the second reference sensor when the number of cards is 0, and Sq represents the distance between adjacent sensors.
In one possible implementation, the location of the central axis of the balancing weight when the number of cards is 0 is a card-out location, and the first reference sensor ID and the reference distance are used for recording.
In one possible implementation, the determining of the card-out position includes:
When the number of cards is 0, a first reference magnetic force value and a second reference magnetic force value in a reference magnetic force value sequence are obtained; the reference magnetic force value sequence comprises magnetic force values detected by a plurality of sensors on a magnetic field emitted by the balancing weight; the first reference magnetic force value is the maximum value in the reference magnetic force value sequence, the second reference magnetic force value is the maximum value in other magnetic force values except the first reference magnetic force value in the reference magnetic force value sequence, the detection sensor corresponding to the first reference magnetic force value is set as a first reference sensor, and the detection sensor corresponding to the second reference magnetic force value is set as a second reference sensor; the first reference sensor is adjacent to the second reference sensor;
Calculating the first reference magnetic force value and the second reference magnetic force value by adopting the magnetic force distance algorithm to obtain a reference distance of the position of the central axis of the balancing weight relative to the offset of the first reference sensor to the second reference sensor;
and setting the reference distance of the first reference sensor to the second reference sensor as the card-out position.
In one possible implementation, the magnetic distance algorithm is:
Spr=（p-r）×[+/>（1-/>）]×Sq
Wherein p represents a first reference sensor ID, r represents a second reference sensor ID, spr represents a reference distance of the position of the central axis of the balancing weight at the clamped position relative to the first reference sensor to the second reference sensor, vmp represents a magnetic peak value calibrated in advance by the first reference sensor, vp represents a first reference magnetic value detected by the first reference sensor, vmr represents a magnetic peak value calibrated in advance by the second reference sensor, vr represents a second reference magnetic value detected by the second reference sensor, and Sq represents a distance between adjacent sensors.
In one possible implementation, the peak magnetic force value of each sensor is the magnetic force value detected by the corresponding sensor when the central axis of the balancing weight coincides with the center point of the corresponding sensor.
In a third aspect, an electronic device is provided, the electronic device comprising a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory are in communication with each other via the communication bus;
A memory for storing a computer program;
a processor for implementing the method steps of any of the above second aspects when executing a program stored on a memory.
In a fourth aspect, a computer-readable storage medium is provided, in which a computer program is stored which, when being executed by a processor, carries out the method steps of any of the above second aspects.
The application provides a CPC card quantity detection device, which comprises a card bin, a card slot, a balancing weight and a sensor circuit board, wherein the card bin is arranged on the card slot; a plurality of sensors arranged on the sensor circuit board are linearly arranged at equal intervals on the rear side of the card bin; the clamping groove is arranged at the front side of the clamping bin; the balancing weight is arranged at the uppermost end of the stacked CPC cards; the card bin is used for placing the balancing weight, the CPC card and the sensor circuit board; the clamping groove is an operation space for manually adding the CPC card; the balancing weight is provided with a strip magnet and is used for applying gravity to the CPC card and can emit a magnetic field; the balancing weight moves up and down along with the quantity change of the CPC cards; the central axis of the balancing weight is vertically intersected with the central connecting line of the sensor, and the up-and-down movement track of the central axis of the balancing weight coincides with the central connecting line of the sensor; and the sensor is used for detecting the magnetic force value of the magnetic field emitted by the balancing weight. The device can detect the magnetic force value that the balancing weight sent through the sensor, confirms card quantity in the card storehouse in real time, has realized the real-time supervision to card quantity in the card storehouse, helps mending card personnel to prepare in advance to mend card work, improves mending card personnel's work efficiency, and then has improved the passing efficiency of vehicle in the lane.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and should not be considered as limiting the scope, and other related drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a CPC card quantity detecting device according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a balancing weight according to an embodiment of the present application;
Fig. 3 is a flow chart of a method for detecting the number of CPC cards according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
For convenience of understanding, the terms involved in the embodiments of the present application are explained below:
CPC card, which is the compound traffic card of expressway; the CPC card can identify the information of the vehicles entering and exiting the toll station, accurately record the actual running path of the vehicles, and provide important basis for traffic billing, clearing and the like.
The automatic card issuing equipment in the present automatic card issuing robot all adopts vertical card storehouse combination card supply mode, and is current, does not have reliable and stable on-line real-time detection device, and the efficient acquires the card quantity in every card storehouse in real time, needs the toll station staff to patrol at regular time and examine the back, supplements the card storehouse that card quantity is not enough, leads to staff's work efficiency low, and the staff often just discovers the card storehouse when card is out and lacks the card, and card issuing robot shut down and wait to mend the card this moment, and the vehicle need wait to mend the card and accomplish in the lane when mending the card, influences lane traffic efficiency.
The preferred embodiments of the present application will be described below with reference to the accompanying drawings of the specification, it being understood that the preferred embodiments described herein are for illustration and explanation only, and not for limitation of the present application, and embodiments of the present application and features of the embodiments may be combined with each other without conflict.
Fig. 1 is a schematic structural diagram of a CPC card quantity detecting device according to an embodiment of the present application. As shown in fig. 1, the apparatus may include: the card bin 4, the draw-in groove 3, balancing weight 2 and sensor circuit board 1, wherein, be provided with the sensor on the sensor circuit board 1, the quantity of sensor is a plurality of.
The card bin 4 is used for placing the sensor circuit board 1, stacking the CPC card 5 and the balancing weight 2, and limiting the CPC card and the balancing weight to move towards two ends of the card bin only; the clamping groove 3 is positioned at the front side of the clamping bin 4 and is an operation space for manually adding the CPC card. For the lower card discharging type card bin, the balancing weight 2 is arranged at the uppermost end of the stacked CPC cards and moves up and down along with the quantity change of the CPC cards. When a card supplementing person executes card adding operation, the balancing weight is pushed to move upwards along the card bin through the card slot 3, and the balancing weight is moved out of the upper opening of the card bin; manually adding CPC cards downwards from the upper opening of the card bin; the balancing weight is pushed downwards at the upper opening of the card bin and is put back into the card bin.
The central axis of the balancing weight is vertically intersected with the central connecting line of the sensor; the up-down movement track of the central axis of the balancing weight coincides with the central connecting line of the sensor. The central axis of the balancing weight is the central axis of the balancing weight parallel to the long side, and is the central axis of the bar magnet parallel to the long side. The center connecting line of the sensor is a connecting straight line of the center points of all sensors on the sensor circuit board.
The sensor circuit board 1 sets up the central point of card storehouse 4 rear side, sets up a plurality of equidistant linear arrangement's sensor in the sensor circuit board 1, and the interval Sq between the adjacent sensor generally sets up to 25mm, and the quantity of sensor depends on the capacity of card storehouse CPC card, ensures that when CPC card full storehouse or card is when full, sensor circuit board goes up the outside that the head and the tail sensor all resides in the effective removal orbit of balancing weight central axis.
And the card bin 4 is used for placing the balancing weight 2, the CPC card 5 and the sensor circuit board 1.
The clamping groove 3 is an operation space for manually adding the CPC card.
The balancing weight 2 is a balancing weight with a bar magnet and is used for applying gravity to the CPC card and can emit a magnetic field; specifically, referring to fig. 2, the counterweight 2 has a rectangular structure, and the length and width of the counterweight are the same as those of the CPC card, and the height of the counterweight is generally about 20 mm; the balancing weight 2 comprises a magnet cover 22, a bar magnet 23, a balancing weight main body 24 and a plurality of countersunk head screws 21; the strip magnet 23 is centrally arranged in the counterweight body 24, the outer surfaces of the two minimum end surfaces (namely the N-pole surface and the S-pole surface) of the strip magnet 23 are parallel to the outer surfaces of the two minimum end surfaces of the counterweight body 24, the shortest vertical distance between the strip magnet and the counterweight body is about 15mm, the central axis of the parallel long side of the strip magnet 23 coincides with the central axis of the counterweight body 24, and the strip magnet 23 is fixed at the central position of the counterweight body 24 by using the magnet cover 22 and a plurality of countersunk head screws 21 (generally 2). The structure of original balancing weight has been changed to this mode, increases bar magnet on original balancing weight cuboid structure's basis to when guaranteeing that the balancing weight reciprocates, the balancing weight is located the magnetic force value of two sides in the front of card storehouse and behind the same, and the magnetic force value that the sensor detected is close unanimously to the front and back exchange or the upper and lower exchange of two sides.
The sensor circuit board 1 is provided with a plurality of sensors, an analog signal processing circuit, a 485 interface circuit, a storage circuit, a power supply circuit and an MCU processor circuit; the analog signal processing circuit is used for collecting signals of all the sensors; the 485 interface circuit is used for being connected with a 485 bus; the storage circuit is used for storing parameters such as each sensor ID, a calibrated magnetic force peak value, a circuit sampling frequency, a communication baud rate, a sensor circuit board address number and the like; the power supply circuit is used for converting the power supply voltage into a required voltage value so as to continuously supply current; and the MCU processor circuit is used for controlling and monitoring the operation of each circuit. The sensor is used for detecting a magnetic force value of a magnetic field emitted by the balancing weight 2, and further determining the position of the central axis of the balancing weight.
Further, generally, 15 sensors are arranged on a sensor circuit board of each card bin of the CPC card quantity detection device, and after the device is assembled, 15 sensors are identified for any card bin, so that each sensor has own sensor ID; the identification process can be set by a matched PC, and a command is issued to the magnetic sensor circuit board through a usb to 485 serial line so as to start and confirm the identification process of 15 sensors.
In some embodiments, take the following card-out card bin as an example, that is, the card-out direction is the bottom, the sensor IDs of the 15 sensors are identified from top to bottom according to 15, 14 … …,2, 1.
The device provided by the application is also suitable for the upper card-discharging type card bin. The device provided by the embodiment of the application is suitable for the card bins with the capacity of less than 90, and the number of the sensors can be increased in an equal ratio for the card bins with the capacity of more than 90.
For any sensor, the closer the central axis of the balancing weight is to the sensor, the larger the detected magnetic force value is; the magnetic force value is the largest when the center axis of the balancing weight coincides with the center point of the sensor. Theoretically, in the case that the central axis of the balancing weight can coincide with the central point of each sensor, the peak value of the magnetic force of each sensor to the balancing weight should be equal; because of individual differences of the sensors, magnetic force peaks of the sensors in the actual use process need to be determined, so that accurate data bases are provided for follow-up, and the card number is accurately determined.
The apparatus may further include a communication circuit board:
The communication circuit board is provided with a 485 bus interface and an Ethernet interface, is communicated with the sensor circuit boards of the CPC card quantity detection devices through the 485 bus, uploads detection results of the detection devices to the card issuing robot host in real time through the Ethernet, and simultaneously receives and forwards communication commands and parameters issued by the card issuing robot host to the detection devices.
In some embodiments, one communication circuit board may manage a plurality of CPC card quantity detection apparatuses, in short, one communication circuit board is connected to a plurality of card pockets to monitor the quantity of cards in the plurality of card pockets. Typically, a card sender contains 4 or more card hoppers.
Further, the circuit of the sensor can be selected from a circuit with the model number of GH39FKSW, and an 8-to-1 analog switch circuit can be arranged due to the fact that the number of the sensors is large, and the model number of the analog switch chip is CD4051BM96. For example, in some embodiments 15 sensors are provided, with a corresponding 15 sensor circuit; at this time, through setting up 28 way analog switch, only need set up 2 analog to digital conversion interface circuit and 28 way analog switch circuit and be connected respectively in the sensor circuit board, can gather the magnetic force value that 15 sensors detected. In the mode, the number of interfaces for connecting the processor with the circuit of the sensor can be reduced, signal interference is reduced, and signal transmission performance is improved.
The main control processors of the sensor circuit board and the communication circuit board can select microprocessor chips with the model STM32F103C8T 6; a memory chip in the memory circuit selects a chip with the model CAT24C 256; a485 driver chip in the driver circuit selects a chip with model number ISL81487 EIBZ-T.
The embodiment of the application also provides a method for detecting the number of CPC cards, and the method is applied to the CPC card number detection device mentioned in the above embodiment, and can include:
Step S310, a first target magnetic force value and a second target magnetic force value in a target magnetic force value sequence are obtained.
The target magnetic force value sequence is a magnetic force value detected by a plurality of sensors sending out magnetic fields to the balancing weight.
Before step S310 is performed, calibration confirmation is performed on the ID and magnetic force peak of the sensor. Referring to the lower card discharging type card bin, the ID of the sensor is identified from top to bottom according to 15, 14 … …,2 and 1; the calibration of the magnetic peak value can send a starting and confirming command to the sensor circuit board through a matched PC.
The determining of the peak magnetic force detected by each sensor may include:
Controlling the balancing weight to slowly move in the clamping bin at a uniform speed, enabling the center axis movement track of the balancing weight to cover the center points of 15 sensors, detecting the magnetic field emitted by the balancing weight in real time by each sensor in the moving process, acquiring a plurality of magnetic force values detected by any sensor after the movement is finished, and storing the largest magnetic force value in the magnetic force values detected by any sensor; the largest magnetic force value in the magnetic force values detected by any sensor is the magnetic force peak value of the corresponding sensor, and 15 sensor IDs and corresponding magnetic force peak values are stored in the chip.
Then, the card-out position needs to be determined, and the card-out position can be understood as the position of the central axis of the balancing weight when the number of cards is 0.
The distance between the target position of the central axis of the balancing weight and the clamped position is determined according to the magnetic force value of the magnetic field emitted by the sensor detection balancing weight, so that the clamped position needs to be determined. The card-out position is the position of the central axis of the balancing weight when the number of cards is 0, and the position is recorded by using the first reference sensor ID and the reference distance.
The determining process of the card-out position specifically comprises the following steps:
and when the number of the cards is 0, acquiring a first reference magnetic force value and a second reference magnetic force value in a reference magnetic force value sequence of the position of the central axis of the balancing weight.
The reference magnetic force value sequence comprises magnetic force values detected by magnetic fields emitted by a plurality of sensors to the balancing weight; the first reference magnetic force value is the maximum value in the reference magnetic force value sequence, and the second reference magnetic force value is the maximum value in other magnetic force values except the first reference magnetic force value in the reference magnetic force value sequence. The detection sensor corresponding to the first reference magnetic force value is set as a first reference sensor, and the detection sensor corresponding to the second reference magnetic force value is set as a second reference sensor. The second reference sensor is adjacent to the first reference sensor.
Calculating a first reference magnetic force value and a second reference magnetic force value by adopting a magnetic force distance algorithm to obtain a reference distance of the position of the central axis of the balancing weight relative to the offset of the first reference sensor to the second reference sensor;
the reference distance of the first reference sensor to the second reference sensor is set as the card-out position.
For example: when the number of the cards is 0, a first reference magnetic force value and a second reference magnetic force value in a reference magnetic force value sequence of the position of the central axis of the balancing weight are obtained; the reference magnetic force value sequence comprises magnetic force values detected by 15 sensors on a magnetic field emitted by the balancing weight; the detection sensor corresponding to the first reference magnetic force value is set as the first reference sensor.
At this time, setting a second reference magnetic force value measured by a second reference sensor as Vr; based on the second reference sensor ID, a pre-stored magnetic force peak Vmr of the second reference sensor is acquired. The first reference magnetic force value detected by the first reference sensor is Vp; based on the first reference sensor ID, a pre-stored magnetic force peak value Vmp, sq of the first reference sensor is acquired to represent the distance between adjacent sensors.
According to a magnetic distance algorithm, vp, vmp, vr, vmr and Sq are calculated to obtain a reference distance of the offset of the first reference sensor to the second reference sensor:
Spr=（p-r）×[+/>（1-/>）]×Sq
Where p denotes the first reference sensor ID, r denotes the second reference sensor ID, spr denotes the reference distance by which the first reference sensor is offset to the second reference sensor.
The reference distance at which the first reference sensor is offset to the second reference sensor is set to the measurement distance origin (0 mm), that is, the stuck-at position.
Then, the device is used for placing a plurality of cards and putting the cards into actual use.
In the actual use process, the magnetic force value of the magnetic field emitted by the detection balancing weight is obtained when the sensor ID provided in the above embodiment is the sensor 15 to the sensor 1.
When the balancing weight is at any target position, the maximum two magnetic force values in the target magnetic force value sequence of the magnetic force values detected by the 15 sensors, namely a first target magnetic force value and a second target magnetic force value, are obtained. The first target magnetic force value is the maximum value in the target magnetic force value sequence, and the second target magnetic force value is the maximum value in other magnetic force values except the first target magnetic force value in the target magnetic force value sequence. The detection sensor corresponding to the first target magnetic force value is set as a first target sensor, the ID number corresponding to the first target magnetic force value is set as x, the detection sensor corresponding to the second target magnetic force value is set as a second target sensor, the ID number corresponding to the second target magnetic force value is set as y, and the first target sensor is adjacent to the second target sensor.
Setting a first target magnetic force value detected by a first target sensor as Vx; based on the first target sensor ID, a pre-stored magnetic force peak Vmx of the first target sensor is acquired. The second target magnetic force value detected by the second target sensor is Vy; based on the second target sensor ID, a pre-stored magnetic force peak Vmy of the second target sensor is acquired.
And step 320, calculating the first target magnetic force value and the second target magnetic force value by adopting a magnetic force distance algorithm to obtain the target distance of the first target sensor shifting to the second target sensor.
Specifically, the magnetic distance algorithm is that
Sxy=（y-x）×[+/>（1-/>）]×Sq
Where Sxy denotes a target distance, sq denotes a distance between adjacent sensors, and is generally set to 25mm.
And step S330, calculating the first target sensor ID, the first reference sensor ID, the target distance and the reference distance by adopting a card number algorithm to obtain the card number.
Specifically, the card number algorithm is:
N=[Sq×(x-p)+Sxy+Spr]/a
Wherein N is the number of cards, sq× (x-p) represents the distance between the first target sensor of the counterweight at the target position and the first reference sensor of the stuck position, x represents the first target sensor ID, p represents the first reference sensor ID, sxy represents the target distance, a is the card thickness, typically 5mm, spr represents the reference distance of the central axis of the counterweight relative to the first reference sensor offset to the second reference sensor when the number of cards is 0, and Sq represents the distance between adjacent sensors. The target position can be understood as the position to be measured where the central axis of the balancing weight is located when any CPC cards are arranged.
It should be noted that the accuracy of the magnetic distance algorithm determines the accuracy of card quantity detection. In theory, when the target distance error calculated by the magnetic distance algorithm is smaller than half of the thickness of the CPC card, namely 2.5mm, the number of the residual cards in the card bin can be accurately calculated. In order to verify the detection error of the magnetic distance algorithm, the following actual measurements are made:
And moving the central axis of the balancing weight to a known target distance of a known sensor, collecting a target magnetic force value sequence of magnetic force values detected by the sensor, extracting a first target magnetic force value and a second target magnetic force value, calculating the target distance, and comparing the target distance with an actual target distance to calculate a measurement error value.
In actual measurement, 10 positions of central axes of balancing weights are selected as test points, the center positions of the No. 5 sensors are used as the test points, the test points are arranged in the direction of the No. 3 sensor at equal intervals of 5mm, and the positions of the No. 4 sensors, which deviate from the No. 3 sensor by 20mm, are finished. The magnetic force values of each test point collected by the sensors numbered 5, 4 and 3 related to the actual measurement calculation are recorded in the following table 1.
TABLE 1
Extracting magnetic force peaks of three sensors: the number 3 sensor is 1002, the number 4 sensor is 943, the number 5 sensor is 935, the data are brought into a magnetic distance calculation formula of the target distance, and the target distance of each test point is calculated and obtained, as shown in the following table 2.
TABLE 2
Comparing the calculated target distance with the actual target distance, the calculated error value is shown in the table 2, and the maximum error is 1.37mm and is far less than 2.5mm, so that the device can accurately calculate the quantity of the residual cards in the card bin.
And step 340, when the number of cards reaches a preset threshold, sending out early warning prompt information comprising the number of cards.
Specifically, a main control processor of the communication circuit board obtains the number of cards in real time on line, sends out card number information in real time, and compares the card number with a preset threshold value;
If the number of the cards is less than or equal to the preset threshold, the main control processor sends prompt information comprising the number of the cards to the terminal of the corresponding processor so that the corresponding processor can immediately fill the cards.
If the number of cards is greater than the preset threshold, the steps S310 to S340 are continuously performed.
In some embodiments, the main control processor of the communication circuit board obtains the number of cards online in real time, sends information of the number of cards in each card bin to the terminal of a corresponding processor in real time, and the processor can know the number Yu Ka of each card bin of each card issuing robot in time, dynamically decides card supplementing time according to the peak condition of traffic flow, and ensures efficient work of the card issuing robot. Meanwhile, related staff measures and counts the CPC card issuing number of each robot and checks the CPC card issuing number with the ex-warehouse number.
In some embodiments, if the number of cards in a card slot is kept unchanged and the card slot associated with the card slot is continuously supplied with cards, a fault indicating that the card slot may have a card lock is issued, and a prompt message including the fault of the card slot is sent to the terminal of the corresponding processor. That is, the method provided by the application not only can detect the number of cards, but also can monitor the service condition of each card bin device of the card issuing robot, and sends out prompt information aiming at the card bin meeting the fault condition.
The application provides a CPC card quantity detection device, which comprises a card bin, a card slot, a balancing weight and a sensor circuit board, wherein the card bin is arranged on the card slot; a plurality of sensors arranged on the sensor circuit board are linearly arranged at equal intervals on the rear side of the card bin; the clamping groove is arranged at the front side of the clamping bin; the balancing weight is arranged at the uppermost end of the stacked CPC cards; the card bin is used for placing the balancing weight, the CPC card and the sensor circuit board; the clamping groove is an operation space for manually adding the CPC card; the balancing weight is provided with a strip magnet and is used for applying gravity to the CPC card and can emit a magnetic field; the balancing weight moves up and down along with the quantity change of the CPC cards; the central axis of the balancing weight is vertically intersected with the central connecting line of the sensor, and the up-and-down movement track of the central axis of the balancing weight coincides with the central connecting line of the sensor; and the sensor is used for detecting the magnetic force value of the magnetic field emitted by the balancing weight. The device can detect the magnetic force value that the balancing weight sent through the sensor, confirms card quantity in the card storehouse in real time, has realized the real-time supervision to card quantity in the card storehouse, helps mending card personnel to prepare in advance to mend card work, improves mending card personnel's work efficiency, and then has improved the passing efficiency of vehicle in the lane.
The embodiment of the present application further provides an electronic device, as shown in fig. 4, including a processor 510, a communication interface 520, a memory 530, and a communication bus 540, where the processor 510, the communication interface 520, and the memory 530 complete communication with each other through the communication bus 540.
A memory 530 for storing a computer program;
the processor 510 is configured to execute the program stored in the memory 530, and implement the following steps:
When the unknown number of CPC cards exist in the card bin, the balancing weight is positioned at a target position and emits a magnetic field, and a first target magnetic force value and a second target magnetic force value in a target magnetic force value sequence are obtained; the target magnetic force value sequence comprises magnetic force values detected by a plurality of sensors on a magnetic field emitted by the balancing weight; the first target magnetic force value is the maximum value in the target magnetic force value sequence, the second target magnetic force value is the maximum value in other magnetic force values except the first target magnetic force value in the target magnetic force value sequence, the detection sensor corresponding to the first target magnetic force value is set as a first target sensor, the detection sensor corresponding to the second target magnetic force value is set as a second target sensor, and the first target sensor is adjacent to the second target sensor;
when the target positions are any CPC card number, the central axis of the balancing weight is positioned at the position to be measured;
Calculating the first target magnetic force value and the second target magnetic force value by adopting a magnetic force distance algorithm to obtain a target distance of the position of the central axis of the balancing weight relative to the offset of the first target sensor to the second target sensor;
And calculating the first target sensor ID, the first reference sensor ID, the target distance and the reference distance by adopting a card number algorithm to obtain the number of cards, and sending prompt information comprising the number of cards, wherein the reference distance is the distance of the position of the central axis of the balancing weight, when the number of cards is 0, relative to the first reference sensor, to the second reference sensor.
The communication bus mentioned above may be a peripheral component interconnect standard (PERIPHERAL COMPONENT INTERCONNECT, PCI) bus or an extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus, or the like. The communication bus may be classified as an address bus, a data bus, a control bus, or the like. For ease of illustration, the figures are shown with only one bold line, but not with only one bus or one type of bus.
The communication interface is used for communication between the electronic device and other devices.
The Memory may include random access Memory (Random Access Memory, RAM) or may include Non-Volatile Memory (NVM), such as at least one disk Memory. Optionally, the memory may also be at least one memory device located remotely from the aforementioned processor.
The processor may be a general-purpose processor, including a central processing unit (Central Processing Unit, CPU), a network processor (Network Processor, NP), etc.; but may also be a digital signal processor (DIGITAL SIGNAL Processing, DSP), application SPECIFIC INTEGRATED Circuit (ASIC), field-Programmable gate array (Field-Programmable GATE ARRAY, FPGA) or other Programmable logic device, discrete gate or transistor logic device, discrete hardware components.
Since the implementation manner and the beneficial effects of the solution to the problem of each device of the electronic apparatus in the foregoing embodiment may be implemented by referring to each step in the embodiment shown in fig. 3, the specific working process and the beneficial effects of the electronic apparatus provided by the embodiment of the present application are not repeated herein.
In yet another embodiment of the present application, a computer readable storage medium is provided, where instructions are stored, which when executed on a computer, cause the computer to perform a method for detecting the number of CPC cards according to any of the foregoing embodiments.
In yet another embodiment of the present application, a computer program product containing instructions that, when executed on a computer, cause the computer to perform a method for detecting the number of CPC cards according to any of the embodiments described above is also provided.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as methods, systems, or computer program products. Accordingly, embodiments of the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present application may take the form of a computer program product on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
Embodiments of the present application are described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, the present embodiments are intended to be construed as including the preferred embodiments and all such alterations and modifications that fall within the scope of the embodiments.
It will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present application without departing from the spirit or scope of the embodiments of the application. Thus, if such modifications and variations of the embodiments in the present application fall within the scope of the embodiments of the present application and the equivalent techniques thereof, such modifications and variations are also intended to be included in the embodiments of the present application.
Claims (9)
1. The CPC card quantity detection device is characterized by comprising a card bin, a card slot, a balancing weight and a sensor circuit board;
The sensor circuit board is provided with a plurality of sensors which are linearly arranged at equal intervals, and the sensor circuit board is positioned at the rear side of the card bin; the clamping groove is arranged at the front side of the clamping bin; the balancing weight is arranged at the uppermost end of the stacked CPC cards;
The card bin is used for placing the balancing weight, the CPC card and the sensor circuit board;
The clamping groove is an operation space for manually adding the CPC card;
the balancing weight is provided with a strip magnet and is used for applying gravity to the CPC card and can emit a magnetic field; the balancing weight moves up and down along with the quantity change of the CPC cards;
The central axis of the balancing weight is vertically intersected with the central connecting line of the sensor, and the up-and-down movement track of the central axis of the balancing weight coincides with the central connecting line of the sensor; the central axis of the balancing weight is the central axis of the balancing weight parallel to the long side, namely the central axis of the bar magnet parallel to the long side; the sensor center connecting line is a connecting straight line of center points of all sensors on the sensor circuit board;
The sensor is used for detecting a magnetic force value of a magnetic field emitted by the balancing weight;
The sensor circuit board is used for determining the distance between the position of the central axis of the balancing weight and the clamped position according to the magnetic force value of the magnetic field emitted by the balancing weight and detected by the sensor so as to determine the number of clamping sheets in the clamping bin.
2. The device of claim 1, wherein the weight is of a cuboid configuration;
the balancing weight comprises a magnet cover, a strip magnet, a balancing weight main body and a plurality of countersunk head screws;
the magnet cover and the plurality of countersunk head screws fix the bar magnet at the center of the balancing weight body.
3. A CPC card quantity detection method, characterized by being applied to the CPC card quantity detection apparatus according to any of claims 1-2, the method comprising:
When the unknown number of CPC cards exist in the card bin, the balancing weight is positioned at a target position and emits a magnetic field, and a first target magnetic force value and a second target magnetic force value in a target magnetic force value sequence are obtained; the target magnetic force value sequence comprises magnetic force values detected by a plurality of sensors on a magnetic field emitted by the balancing weight; the first target magnetic force value is the maximum value in the target magnetic force value sequence, the second target magnetic force value is the maximum value in other magnetic force values except the first target magnetic force value in the target magnetic force value sequence, a detection sensor corresponding to the first target magnetic force value is set as a first target sensor, a detection sensor corresponding to the second target magnetic force value is set as a second target sensor, and the first target sensor is adjacent to the second target sensor;
when the target positions are any CPC card number, the central axis of the balancing weight is positioned at the position to be measured;
Calculating the first target magnetic force value and the second target magnetic force value by adopting a magnetic force distance algorithm to obtain a target distance of the position of the central axis of the balancing weight relative to the offset of the first target sensor to the second target sensor;
And calculating the first target sensor ID, the first reference sensor ID, the target distance and the reference distance by adopting a card number algorithm to obtain the number of cards, and sending prompt information comprising the number of cards, wherein the reference distance is the distance of the position of the central axis of the balancing weight, when the number of cards is 0, relative to the first reference sensor, to the second reference sensor.
4. A method according to claim 3, wherein the magnetic distance algorithm is:
Sxy=（y-x）×[+/>（1-/>）]×Sq
Wherein Sxy denotes a target distance, y denotes a second target sensor ID, x denotes a first target sensor ID, vmx denotes a magnetic force peak value preliminarily calibrated by the first target sensor, vx denotes a first target magnetic force value detected by the first target sensor, vmy denotes a magnetic force peak value preliminarily calibrated by the second target sensor, vy denotes a second target magnetic force value detected by the second target sensor, and Sq denotes a distance between adjacent sensors.
5. The method of claim 3, wherein the card quantity algorithm is:
N=[Sq×(x-p)+Sxy+Spr]/a
Wherein N is the number of cards, sq× (x-p) represents the distance between a first target sensor of the balancing weight at the target position and a first reference sensor of the clamped position, x represents a first target sensor ID, p represents a first reference sensor ID, sxy represents the target distance, a is the card thickness, spr represents the reference distance of the position of the central axis of the balancing weight relative to the first reference sensor to the second reference sensor when the number of cards is 0, and Sq represents the distance between adjacent sensors.
6. The method of claim 5, wherein the location of the center axis of the weight when the number of cards is 0 is a card-out location, recorded using the first reference sensor ID and the reference distance.
7. The method of claim 6, wherein the determining of the card-out position comprises:
When the number of cards is 0, a first reference magnetic force value and a second reference magnetic force value in a reference magnetic force value sequence are obtained; the reference magnetic force value sequence comprises magnetic force values detected by a plurality of sensors on a magnetic field emitted by the balancing weight; the first reference magnetic force value is the maximum value in the reference magnetic force value sequence, the second reference magnetic force value is the maximum value in other magnetic force values except the first reference magnetic force value in the reference magnetic force value sequence, the detection sensor corresponding to the first reference magnetic force value is set as a first reference sensor, and the detection sensor corresponding to the second reference magnetic force value is set as a second reference sensor; the first reference sensor is adjacent to the second reference sensor;
Calculating the first reference magnetic force value and the second reference magnetic force value by adopting the magnetic force distance algorithm to obtain a reference distance of the position of the central axis of the balancing weight relative to the offset of the first reference sensor to the second reference sensor;
and setting the reference distance of the first reference sensor to the second reference sensor as the card-out position.
8. The method of claim 7, wherein the magnetic distance algorithm is:
Spr=（p-r）×[+/>（1-/>）]×Sq
Wherein p represents a first reference sensor ID, r represents a second reference sensor ID, spr represents a reference distance of the position of the central axis of the balancing weight at the clamped position relative to the first reference sensor to the second reference sensor, vmp represents a magnetic peak value calibrated in advance by the first reference sensor, vp represents a first reference magnetic value detected by the first reference sensor, vmr represents a magnetic peak value calibrated in advance by the second reference sensor, vr represents a second reference magnetic value detected by the second reference sensor, and Sq represents a distance between adjacent sensors.
9. The method of claim 4, wherein each sensor's magnetic force peak is the magnetic force value detected by the respective sensor when the center axis of the weight coincides with the center point of the respective sensor.
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