CN108180936B - Oblique vibration recording device and method for express delivery transportation - Google Patents
Oblique vibration recording device and method for express delivery transportation Download PDFInfo
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Abstract
The invention discloses an inclined vibration recording device and method for express delivery transportation, wherein the device comprises the following steps: the device comprises a shell, wherein an inclined digital indicating tube and a vibration digital indicating tube are arranged on the surface of the shell, a power switch is arranged on the side wall of the shell, a pasting structure is arranged at the bottom of the shell, a triaxial digital accelerometer for sensing inclination and vibration is arranged in the shell, the triaxial digital accelerometer is connected with a single chip microcomputer through a wire, the single chip microcomputer is connected with the inclined digital indicating tube and the vibration digital indicating tube through wires, the single chip microcomputer is further used for controlling the inclined digital indicating tube and the vibration digital indicating tube to display numbers, and a power module for supplying power to other components in the shell is further arranged in the shell; the three-axis digital accelerometer is used for sampling the inclination and vibration conditions of the express mail in the transportation process, and the numerical value is displayed on the corresponding digital indicator tube after being calculated by the singlechip, so that the aim of effectively monitoring the state of the express mail in the transportation process and guaranteeing the benefits of consumers is fulfilled.
Description
Technical Field
The invention relates to a monitoring technology in the express delivery transportation process, in particular to an inclined vibration recording device and method for express delivery transportation.
Background
With the rapid development of the Internet and the Internet of things, online shopping becomes a part of life of people, and various shopping websites regularly develop sales promotion shopping activities, so that the logistics quantity is greatly increased, however, during express delivery transportation, violent sorting in the express delivery industry occurs, package rolling in the express delivery process is not limited, and due to the lack of effective supervision measures, the quality of service of the express delivery transportation is difficult to improve, and if the express delivery is damaged during transportation, the responsibility of the express delivery is difficult to be identified, so that great inconvenience is brought to merchants and consumers.
Disclosure of Invention
In order to solve the technical problems, the invention provides an inclined vibration recording device and an inclined vibration recording method for express delivery transportation, which have the advantages of simple structure, convenient use and low cost, so as to achieve the purpose of effectively monitoring the state of express items in the transportation process and guaranteeing the benefits of consumers.
In order to achieve the above purpose, the technical scheme of the invention is as follows: an oblique shock recording device for express delivery transportation, the device comprising: the intelligent quick-action intelligent alarm device comprises a shell, wherein an inclined digital indicating tube and a vibration digital indicating tube are arranged on the surface of the shell, the inclined digital indicating tube and the vibration digital indicating tube are arranged in parallel, a power switch is arranged on the side wall of the shell, a pasting structure is arranged at the bottom of the shell, a triaxial digital accelerometer used for sensing inclination and vibration is arranged inside the shell, the triaxial digital accelerometer is connected with a singlechip used for calculating inclination angle and vibration intensity through a wire, the singlechip is connected with the inclined digital indicating tube and the vibration digital indicating tube through wires, the singlechip is further used for controlling the inclined digital indicating tube to display figures and controlling the vibration digital indicating tube to display figures, the inclined digital indicating tube is used for displaying the inclination angle of a express mail during transportation, the vibration digital indicating tube is used for displaying the vibration intensity of the express mail during transportation, and a power module used for supplying power for other components in the shell is further arranged inside the shell.
Further, the three-axis digital accelerometer adopts an ADXL345 three-axis accelerometer, and the ADXL345 three-axis accelerometer is small, exquisite, portable, ultra-low in power consumption, power-saving and capable of improving the working time of the device. The triaxial accelerometer is not limited to use with ADXL345.
Further, the single chip microcomputer adopts the MSP430 single chip microcomputer, the MSP430 single chip microcomputer is low in power consumption, electricity consumption can be saved, and the working time of the device is prolonged. The single chip microcomputer is not limited to using the MSP430.
Furthermore, the inclined digital indicator tube and the vibration digital indicator tube are 1-bit digital tubes, and the 1-bit digital tubes can display ten numbers of 0-9.
Further, the pasting structure is a sucking disc structure, the sucking disc structure is arranged on four corners of the bottom surface of the shell, and the sucking disc structure can be replaced by pasting structures such as double faced adhesive tape.
Embedding an optimized inclination angle calculation algorithm and a vibration intensity calculation algorithm into a singlechip, and setting an inclination angle comparison table and a vibration intensity comparison table; turning on a power switch; the system automatically ignores the first N samples; reading N samples at the next time, calculating an average value to obtain v0, and calculating the modular square of v 0; initializing a current inclination indication value to be 0 and displaying the current inclination indication value on an inclination digital indicating tube, initializing a current vibration indication value to be 0 and displaying the current vibration indication value on the vibration digital indicating tube; circularly reading the readings of the triaxial digital accelerometer, and sampling in real time to obtain v1; calculating the modular square of v1; judging whether the current inclination indicated value is smaller than 9, if so, calculating a signed cosine square value of the included angle; comparing the square value of the signed cosine of the included angle with the value in the inclination angle comparison table, and if the square value of the signed cosine of the included angle is smaller than the square value of the signed cosine corresponding to the current inclination indication value, adding 1 to the inclination indication value, and updating the inclination digital indicator tube; if the inclination angle is equal to 9, skipping an inclination included angle calculation step, wherein the inclination indication value of the inclination digital indicating tube is 9; judging whether the current vibration indication value is smaller than 9, if so, comparing the modulus square of v1 with the value in the vibration intensity comparison table, and if the modulus square of v1 is larger than the vibration intensity modulus square value corresponding to the current vibration indication value, adding 1 to the vibration indication value, and updating the vibration digital indicator tube; if the vibration digital indicator tube is equal to 9, skipping the comparison step, wherein the vibration indication value of the vibration digital indicator tube is 9; and stopping the accelerometer and keeping the nixie tube to display when the values of the two nixie indicator tubes are 9.
Further, v0 is an initial vector, denoted as v0 (x 0, y0, z 0), v1 is a real-time sampling vector, denoted as v1 (x 1, y1, z 1), and the formula of the optimized inclined included angle signed cosine square value calculation algorithm is as follows: (x0x1+y0y1+z0z1)/((x02+y02+z02)/((x12+y12+z12)), sign of (x0x1+y0y1+z0z1) is taken, and the sign is compared with a cosine square value with sign in the inclination angle comparison table by using the sign, so as to obtain an indication value of the inclination digital indicator tube, wherein the formula of the vibration intensity calculation algorithm is ((x1+y12+z12)), and the indication value of the vibration digital indicator tube is obtained by comparing the sign with a module square value in the vibration intensity comparison table.
Further, the inclination angle comparison table is characterized in that the inclination angle comparison table divides 0-180 degrees into nine values by taking 18 degrees as a unit, signed cosine square values of the values are calculated respectively, and the vibration intensity comparison table takes the accelerometer reading module square values when nine heights with 1-9 meters interval fall from 1 meter.
Further, the inclined digital indicator tube and the vibration digital indicator tube can only display 10 numbers of 0 to 9, the rule of displaying the numbers by the inclined digital indicator tube is that the number is divided into ten sections by 18 degrees as a unit, the number is corresponding to each section between 0 and 180 degrees, the rule of displaying the numbers by the vibration digital indicator tube is that the number is divided into ten sections by 1 meter, the number is corresponding to 1 to 9 meters and more than 9 meters, and the vibration strength corresponding to the corresponding height is represented by one number.
The invention has the following advantages:
(1) The invention utilizes the triaxial digital accelerometer to sample the inclination and vibration conditions of the express mail in the transportation process, and the numerical value is displayed on the corresponding digital indicator tube after being calculated by the singlechip, so that the invention has simple structure and low cost, can simply and effectively monitor the inclination and vibration conditions of the express mail in the transportation process, and protects the interests of merchants and consumers.
(2) The algorithm of the triaxial digital accelerometer is optimized, the calculation complexity of the singlechip is reduced, the power consumption of the singlechip is also reduced, resources are saved, and the working efficiency of the device is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
Fig. 1 is a schematic structural diagram of an oblique vibration recording device for express delivery according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an internal structure of an oblique vibration recording device for express delivery according to an embodiment of the present invention;
FIG. 3 is a flowchart of an oblique shock recording method for express delivery according to an embodiment of the present invention;
corresponding part names are indicated by numerals and letters in the drawings:
1. a housing; 2. tilting the digital indicating tube; 3. vibrating the digital indicating tube; 4. a power switch; 5. a pasting structure; 101. a three-axis digital accelerometer; 102. a single chip microcomputer; 103. and a power supply module.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
The invention provides an inclined vibration recording device and method for express delivery transportation, wherein the working principle is that an inclined and vibration condition of a express delivery in the transportation process is sampled through a triaxial digital accelerometer, and numerical values are displayed on corresponding digital indicating tubes after being calculated through a singlechip, so that the purposes of effectively monitoring the state of the express delivery in the transportation process and guaranteeing benefits of consumers are achieved.
The present invention will be described in further detail with reference to examples and embodiments.
As shown in fig. 1 to 3, an oblique vibration recording device for express delivery, the device comprising: the intelligent electronic device comprises a shell 1, wherein an inclined digital indicating tube 2 and a vibration digital indicating tube 3 are arranged on the surface of the shell 1, the inclined digital indicating tube 2 and the vibration digital indicating tube 3 are arranged in parallel, a power switch 4 is arranged on the side wall of the shell 1, a pasting structure 5 is arranged at the bottom of the shell 1, a triaxial digital accelerometer 101 for sensing inclination and vibration is arranged in the shell 1, the triaxial digital accelerometer 101 is connected with a single chip microcomputer 102 for calculating inclination angle and vibration degree through a wire, the single chip microcomputer 102 is connected with the inclined digital indicating tube 2 and the vibration digital indicating tube 3 through wires, the single chip microcomputer 102 is further used for controlling the inclined digital indicating tube 2 to display numerals and controlling the vibration digital indicating tube 3 to display the numerals, the inclined digital indicating tube 2 is used for displaying the inclination angle of a express mail in the transportation process, the vibration digital indicating tube 3 is used for displaying the vibration intensity of the express mail in the transportation process, and a power module 103 for supplying power for other components in the shell 1 is also arranged in the shell 1.
The three-axis digital accelerometer 101 adopts an ADXL345 three-axis accelerometer, and the ADXL345 three-axis accelerometer is small, exquisite, portable, ultra-low in power consumption, power-saving and capable of improving the working time of the device. The triaxial accelerometer is not limited to use with ADXL345.
Wherein, the singlechip 102 adopts MSP430 singlechip 102, MSP430 singlechip 102 low power consumption can save the power consumption, promotes the operating time of device. The single chip microcomputer is not limited to using the MSP430.
Wherein, the inclined digital indicator tube 2 and the vibration digital indicator tube 3 are 1-bit digital indicator tubes, and the 1-bit digital indicator tubes can display ten numbers of 0-9.
The adhesive structure 5 is a sucking disc structure, the sucking disc structure is arranged on four corners of the bottom surface of the shell 1, and the sucking disc structure can be replaced by the adhesive structure 5 such as double faced adhesive tape.
Embedding an optimized inclination angle calculation algorithm and a vibration acceleration calculation algorithm into the singlechip 102, and setting an inclination angle comparison table and a vibration intensity comparison table; turning on a power switch 4; the system automatically ignores the first N samples; reading N samples at the next time, calculating an average value to obtain v0, and calculating the modular square of v 0; initializing a current inclination indication value to be 0, displaying the current inclination indication value on the inclination digital indicator tube 2, initializing a current vibration indication value to be 0, and displaying the current vibration indication value on the vibration digital indicator tube 3; circularly reading the reading of the triaxial digital accelerometer 101, and sampling in real time to obtain v1; calculating the modular square of v1; judging whether the current inclination indicated value is smaller than 9, if so, calculating a signed cosine square value of the included angle; comparing the square value of the signed cosine of the included angle with the value in the inclination angle comparison table, and if the square value of the signed cosine of the included angle is smaller than the square value of the signed cosine corresponding to the current inclination indication value, adding 1 to the inclination indication value, and updating the inclination digital indicator tube 2; if the inclination angle is equal to 9, skipping an inclination included angle calculation step, wherein the inclination indication value of the inclination digital indicating tube 2 is 9; judging whether the current vibration indication value is smaller than 9, if so, comparing the modulus square of v1 with the value in the vibration intensity comparison table, and if the modulus square of v1 is larger than the vibration intensity modulus square value corresponding to the current vibration indication value, adding 1 to the vibration indication value, and updating the vibration digital indicator tube 3; if the vibration digital indicator tube 3 is equal to 9, skipping the comparison step, wherein the vibration indicator value of the vibration digital indicator tube 3 is 9; and stopping the accelerometer and keeping the nixie tube to display when the values of the two nixie indicator tubes are 9.
The method comprises the steps of taking v0 as an initial vector, marking v0 (x 0, y0, z 0), taking v1 as a real-time sampling vector, marking v1 (x 1, y1, z 1), and taking an optimized inclined included angle with a symbol cosine square value calculation algorithm as follows: (x0x1+y0y1+z0z1)/((x02+y02+z02)/((x12+y12+z12)), the sign is given the sign of (x0x1+y0y1+z0z1), and the value is compared with the square value of the cosine with the sign in the inclination angle comparison table to obtain the indication value of the inclination digital indicator tube 2, and the formula of the vibration intensity calculation algorithm is ((x1+y12+z12)), and the indication value of the vibration digital indicator tube 3 is obtained by comparing the value with the square value of the module in the vibration intensity comparison table.
Wherein, the inclination angle comparison table divides between 0 degree and 180 degrees into nine values by taking 18 degrees as a unit, and calculates signed cosine square values of the values respectively, as shown in table one:
| Index | angle of | Cosine value | Signed cosine square value |
| 0 | 18 | 0.95105652 | 0.90450850 |
| 1 | 36 | 0.80901699 | 0.65450850 |
| 2 | 54 | 0.58778525 | 0.34549150 |
| 3 | 72 | 0.30901699 | 0.09549150 |
| 4 | 90 | 0.00000000 | 0.00000000 |
| 5 | 108 | -0.30901699 | -0.09549150 |
| 6 | 126 | -0.58778525 | -0.34549150 |
| 7 | 144 | -0.80901699 | -0.65450850 |
| 8 | 162 | -0.95105652 | -0.90450850 |
List one
The vibration intensity comparison table adopts the accelerometer reading module square value when the accelerometer falls at nine heights with the interval of 1-9 meters, wherein the vibration intensity comparison table adopts the accelerometer reading module square value when the accelerometer falls at nine heights with the interval of 1-9 meters. The maximum vibration of various heights falling can be obtained through experiments, and the concrete method is that an experimental device similar to the device is adopted, the maximum value of the module square of the reading vector of the accelerometer is displayed through multi-bit digital display, the experimental device is placed at the height of 1 meter above the hard ground, the vibration reading at the height of 1 meter can be obtained by free falling body impacting the ground, the average value is obtained through multiple experiments, the vibration values corresponding to other heights are obtained through the same method, and the vibration intensity comparison table is obtained through the experiments.
The rule that the inclined digital indicating tube 2 and the vibration digital indicating tube 3 can only display 10 numbers of 0 to 9 is that the inclined digital indicating tube 2 displays the numbers is that the number is divided into ten sections by taking 18 degrees as a unit, between 0 degrees and 180 degrees, each section corresponds to one number, the rule that the vibration digital indicating tube 3 displays the numbers is that the number is divided into ten sections by taking 1 meter as a unit, and 1 to 9 meters and more than 9 meters, each section corresponds to one number, as shown in a table two and a table three:
watch II
Watch III
After the system is started, the singlechip can acquire acceleration readings in three directions from the accelerometer at a certain frequency and record the acceleration readings as (x, y and z), namely a three-dimensional vector, and the readings of the accelerometer are the earth gravity acceleration in a static state.
The device is started in a static state, after the system is started, an initial vector v0 (x 0, y0, z 0) is recorded, and during operation, a real-time sampling vector is v1 (x 1, y1, z 1).
Included angle between v1 and v 0: the invention optimizes the included angle algorithm to obtain the formula (x0x1+y0y1+z0z1)/((x0x2+y0x1+z0z1) x/v (x0x2+y0x2+z0x2), and the invention simplifies the algorithm of arccos and root number, reduces the computational complexity, saves the hardware resources and improves the efficiency by optimizing the included angle algorithm.
Obtaining v0 (x 0, y0, z 0) and v1 (x 1, y1, z 1), calculating the modular square MM0 of v0, namely x0x 2+ y0y 2+ z0z 2, calculating the modular square of v1, namely x1 x 2+ y1 y 2+ z1, calculating (x0x1 + y0y1+ z0z 1) 2/((x 0 + y0y 2+ z 0) 2) x (x1 + y1+ z 1) 2), taking the sign of (x0x1 + y0y1+ z0z 1), and comparing the sign with the signed square in (table one) to obtain the indication value of the inclined nixie tube, namely the number in (table two).
The module square of the vector ((x1+2+y1+2+z1+2)) reflects the vibration to which the device is subjected, compares this value with the module square value in the vibration intensity comparison table, the indicated value of the vibration nixie tube, namely the number in the table III, can be obtained.
While the invention has been described with respect to the preferred embodiments of an oblique vibration recording apparatus and method for express delivery, it should be noted that modifications and improvements can be made by those skilled in the art without departing from the inventive concept.
Claims (7)
1. An oblique vibration recording method for express delivery transportation adopts an oblique vibration recording device for express delivery transportation, the device comprises: the intelligent quick-action intelligent alarm device comprises a shell, wherein an inclined digital indicating tube and a vibration digital indicating tube are arranged on the surface of the shell, the inclined digital indicating tube and the vibration digital indicating tube are arranged in parallel, a power switch is arranged on the side wall of the shell, a pasting structure is arranged at the bottom of the shell, a triaxial digital accelerometer used for sensing inclination and vibration is arranged in the shell, the triaxial digital accelerometer is connected with a singlechip used for calculating inclination angle and vibration intensity through a wire, the singlechip is connected with the inclined digital indicating tube and the vibration digital indicating tube through wires, the singlechip is further used for controlling the inclined digital indicating tube to display figures and controlling the vibration digital indicating tube to display figures, the inclined digital indicating tube is used for displaying the inclination angle of a express mail during transportation, the vibration digital indicating tube is used for displaying the vibration intensity of the express mail during transportation, and a power module used for supplying power for other components in the shell is also arranged in the shell; embedding an optimized inclination angle calculation algorithm and a vibration intensity calculation algorithm into a singlechip, and setting an inclination angle comparison table and a vibration intensity comparison table; turning on a power switch; the system automatically ignores the first N samples; reading N samples at the next time, calculating an average value to obtain v0, and calculating the modular square of v 0; initializing a current inclination indication value to be 0, displaying the current inclination indication value on an inclination digital indicating tube, initializing a current vibration indication value to be 0, and displaying the current vibration indication value on the vibration digital indicating tube; circularly reading the readings of the triaxial digital accelerometer, and sampling in real time to obtain v1; calculating the modular square of v1; judging whether the current inclination indicated value is smaller than 9, if so, calculating a signed cosine square value of the included angle; comparing the square value of the signed cosine of the included angle with the value in the inclination angle comparison table, and if the square value of the signed cosine of the included angle is smaller than the square value of the signed cosine corresponding to the current inclination indication value, adding 1 to the inclination indication value, and updating the inclination digital indicator tube; if the inclination angle is equal to 9, skipping an inclination included angle calculation step, wherein the inclination indication value of the inclination digital indicating tube is 9; judging whether the current vibration indication value is smaller than 9, if so, comparing the modulus square of v1 with the value in the vibration intensity comparison table, and if the modulus square of v1 is larger than the vibration intensity modulus square value corresponding to the current vibration indication value, adding 1 to the vibration indication value, and updating the vibration digital indicator tube; if the vibration digital indicator tube is equal to 9, skipping the comparison step, wherein the vibration indication value of the vibration digital indicator tube is 9; when the values of the two digital indicator tubes are 9, stopping the accelerometer, and keeping the digital tubes to display;
the inclination angle comparison table is characterized in that the inclination angle comparison table divides 0-180 degrees into nine values by taking 18 degrees as a unit, signed cosine square values of the values are calculated respectively, and the vibration intensity comparison table takes the accelerometer reading module square values when nine heights fall at intervals of 1-9 meters.
2. The oblique vibration recording method for express delivery according to claim 1, wherein v0 is an initial vector, denoted as v0 (x 0, y0, z 0), v1 is a real-time sampling vector, denoted as v1 (x 1, y1, z 1), and the formula of the optimized oblique included angle signed cosine square value calculation algorithm is: (x0x1+y0y1+z0z1)/((x02+y02+z02)/((x12+y12+z12)), sign of (x0x1+y0y1+z0z1) is taken, and the sign is compared with a cosine square value with sign in the inclination angle comparison table by using the sign, so as to obtain an indication value of the inclination digital indicator tube, wherein the formula of the vibration intensity calculation algorithm is ((x1+y12+z12)), and the indication value of the vibration digital indicator tube is obtained by comparing the sign with a module square value in the vibration intensity comparison table.
3. The method for recording the inclined vibration for express delivery according to claim 1, wherein the inclined digital indicator tube and the vibration digital indicator tube can only display 10 numbers of 0 to 9, the rule of displaying the numbers by the inclined digital indicator tube is that the inclined digital indicator tube is divided into ten sections by 18 degrees, each section corresponds to one number, the rule of displaying the numbers by the vibration digital indicator tube is that the inclined digital indicator tube is divided into ten sections by 1 meter, each section corresponds to one number, and the vibration strength corresponding to the corresponding height falling is represented.
4. The method for recording tilt shake for express delivery according to claim 1, wherein the three-axis digital accelerometer is an ADXL345 three-axis accelerometer.
5. The method for recording the inclination vibration of express delivery according to claim 1, wherein the single-chip microcomputer is an MSP430 single-chip microcomputer.
6. The method for recording the inclined vibration for express delivery according to claim 1, wherein the inclined digital indicator tube and the vibration digital indicator tube are 1-bit digital tubes.
7. The tilt shake recording method for express delivery according to claim 1, wherein the attaching structure is a suction cup structure, and the suction cup structure is provided at four corners of the bottom surface of the case.
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