CN217606086U - Reader-writer non-contact distance testing platform based on single chip microcomputer - Google Patents
Reader-writer non-contact distance testing platform based on single chip microcomputer Download PDFInfo
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- CN217606086U CN217606086U CN202221143796.2U CN202221143796U CN217606086U CN 217606086 U CN217606086 U CN 217606086U CN 202221143796 U CN202221143796 U CN 202221143796U CN 217606086 U CN217606086 U CN 217606086U
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Abstract
The utility model discloses a reader-writer non-contact distance test platform based on a single chip microcomputer, which comprises a shell, a liquid crystal screen arranged on the front side of the shell, a power switch arranged on the side surface of the shell, and a control panel, a battery module, an infrared distance measurement module and an ultrasonic distance measurement module arranged inside the shell, wherein the power switch is connected with the battery module; the back surface of the shell is a plane, the middle part of the shell is used for being attached to a ticket card, and the edge of the shell is provided with two detection channels which respectively correspond to the infrared ranging module and the ultrasonic ranging module; the infrared distance measuring module and the ultrasonic distance measuring module are used for simultaneously detecting the distance between the attached ticket card and the card reader and transmitting information to the control board; the control panel is used for calculating the distance of pasting ticket card and card reader to convey the calculation result and show on the LCD screen, make range finding work more convenient, the result is more accurate, has greatly promoted work efficiency.
Description
Technical Field
The utility model relates to a reader-writer non-contact distance test platform based on singlechip, mainly used subway AFC system card reader and ticket card distance's measurement.
Background
At the entrance and exit of a subway station, passengers usually open an entrance guard by using a card reading mode, so that certain requirements are required on the response distance between a ticket card and an AFC system card reader, and frequent distance measurement is required to check whether the card reader needs to be maintained.
At present, the distance measurement work adopts the ticket card actually used to perform the card reading operation on the card reader so as to check whether the effective card reading distance and the response time meet the maintenance requirement, and the specific operation is as follows: firstly, a detection person holds a ticket card by hand to enable the ticket card to be far away from a card reader, then the ticket card is enabled to gradually approach the card reader, and when the card reader responds, an instrument is used for measuring the distance between the ticket card and the card reader, namely the response distance of the card reader. The distance measurement is generally carried out by using a caliper of 20CM, the measurement precision is 1mm, and the requirement of measurement range is met.
However, the above test work has certain limitations: 1. the tester needs to hold the ticket card by one hand to keep moving and measure the distance by the caliper by the other hand, so that the operation is complex, the efficiency is low, and the accuracy of the measurement result is difficult to keep; 2. two detection personnel are required to work by matching with a caliper, one person measures the distance and reads the distance, and the other person is responsible for counting, so that the labor is wasted; 3. the problems of inaccurate measuring distance, large error and the like exist under the influence of factors such as light, personnel difference, unevenness of a reader-writer platform and the like.
Disclosure of Invention
To the existing technical problem, the utility model provides a read write line non-contact distance test platform based on singlechip to improve the convenience and the accuracy of range finding work.
In order to achieve the purpose, the utility model provides a reader-writer non-contact distance test platform based on a single chip microcomputer, which comprises a shell, a liquid crystal screen arranged on the front surface of the shell, a power switch arranged on the side surface of the shell, and a control panel, a battery module, an infrared distance measurement module and an ultrasonic distance measurement module which are arranged inside the shell, wherein the power switch is connected with the battery module, and the control panel is respectively and electrically connected with the battery module, the liquid crystal screen, the infrared distance measurement module and the ultrasonic distance measurement module;
the back surface of the shell is a plane, the middle part of the shell is used for being attached to a ticket card, and the edge of the shell is provided with two detection channels which respectively correspond to the infrared ranging module and the ultrasonic ranging module;
the infrared distance measuring module and the ultrasonic distance measuring module are used for simultaneously detecting the distance between the attached ticket card and the card reader and transmitting information to the control board;
the control panel is used for calculating the distance between the ticket card and the card reader and transmitting the calculation results of the distance measurement of the infrared distance measurement module and the ultrasonic distance measurement module to the liquid crystal screen for display.
Among the above-mentioned technical scheme, this test platform is the instrument of convenient measurement IC-card and card reader, through handheld the utility model discloses alright rapid survey ticket card and the distance of card reader. And moreover, by adopting a sound wave distance measurement and infrared distance measurement double-distance measurement mode, the function of a card reader of the card reader cannot be interfered, and two distance measurement results can be mutually referred, so that the accuracy of the measurement result is improved. Meanwhile, the battery box and the large-capacity battery with the charging function are adopted, so that the portable and long-time outdoor use is facilitated.
Furthermore, the control panel is ATMEGA32U4 Pro Micro expansion plate.
Further, the ultrasonic ranging module is an HC-SR04 ultrasonic ranging sensor.
Furthermore, the infrared distance measurement module selects a VL53L0X flight time distance measurement sensor.
Furthermore, the liquid crystal screen adopts a Nokia 5110LCD display screen.
Furthermore, the battery module selects a 18650 mobile power supply box 18650 with a charging plate inside and a lithium battery 2600mAH.
Furthermore, the side surface of the shell is also provided with a USB charging programming port.
To sum up, the utility model discloses a non-contact card reader discernment distance platform based on the singlechip platform is built utilizes laser rangefinder sensor, the two range finding modes of ultrasonic ranging module to build to show laser rangefinder, ultrasonic ranging's accurate distance numerical value on the LCD screen. Compared with the prior art, the utility model has the following technical advantages:
1. operate through this apart from test platform for range finding work is more convenient, and the flow is simpler, and work is more high-efficient, and the result is more accurate.
2. The distance test platform is small in size, is provided with a charging port and a programming one-in-one port, and is more portable in daily carrying and use.
Drawings
FIG. 1 is a perspective view of the present invention;
fig. 2 is a rear view of the present invention;
FIG. 3 is an electrical schematic block diagram of the present invention;
fig. 4 is a circuit diagram of a module according to the present invention;
in the figure: 1. LCD screen, 2, switch, 3, USB charge programming mouth, 4, infrared ranging module, 5, ultrasonic ranging module.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1 and 2, the utility model discloses a shell is installed at the positive LCD screen 1 of shell, installs the switch 2 and the USB programming mouth 3 that charges to the shell side to and install at the inside control panel of shell, battery module, infrared ranging module 4 and ultrasonic ranging module 5, and USB charges programming mouth 3 and switch and connects battery module respectively, and battery module, LCD screen 1, infrared ranging module 4 and ultrasonic ranging module 5 are connected to the control panel electricity respectively.
Particularly, the back of the shell is a plane, the middle of the shell is used for being attached to a ticket card, and two detection channels are formed in the edge of the shell and correspond to the infrared distance measuring module 4 and the ultrasonic distance measuring module 5 respectively.
As shown in fig. 3, the battery module is used for supplying power for the control board, the infrared ranging module 4 and the ultrasonic ranging module 5; the control panel is respectively in communication connection with the liquid crystal screen 1, the infrared ranging module 4 and the ultrasonic ranging module 5.
The infrared ranging module 4 and the ultrasonic ranging module 5 are used for simultaneously detecting the distance between the attached ticket card and the card reader and transmitting information to the control board.
The control panel is used for calculating the distance between the ticket card and the card reader and transmitting the measurement result to the liquid crystal display screen 1 for display.
The utility model discloses during the implementation, the shell adopt the plastic case to assemble.
The battery module is characterized in that the battery module is a 18650 mobile power supply box 18650 with a charging plate inside and a lithium battery 2600mAH.
The USB charging programming port 3 is used for charging the battery module and providing programming code writing.
The control panel selects an expansion version of ATMEGA32U4 Pro Micro, has 4 10-bit ADC pins and 12 digital I/O (5 PWM capacity), and has the functions of Rx and Tx hardware serial link.
And the infrared distance measurement module 4 adopts a VL53L0X flight time distance measurement sensor. VL53LOX is a fully integrated new generation laser ranging sensor, is provided with embedded infrared and human eye safe lasers, advanced filters and ultra-high speed photon detection arrays, and has longer measuring distance, higher speed and higher precision. The main technical parameters are as follows: working voltage: 3-5V; the communication mode is as follows: IIC; measuring absolute distance: 2m; xshutdown (reset)/GPIO (interrupt); size 25MM x 10.7MM
The ultrasonic ranging module 5 adopts an HC-SR04 ultrasonic ranging sensor, and the module triggers ranging by Trig, can send 8 square waves of 40khz and automatically detect whether signals return. When a signal returns, a high level is output by echo, and the duration of the high level is 2 times of the distance, then the distance = (high level time acoustic velocity)/2 is measured. The main technical parameters are as follows: the voltage used: DC-5V; static current: less than 2mA; and (3) level output: 5V high; and (3) level output: bottom 0V; induction angle: not more than 15 degrees; detecting the distance: 2cm-450cm; the high precision can reach 2mm.
The chip selection circuit comprises a chip selection chip enabling wiring port CE, a mode selection wiring port DC, a serial data wire wiring port DIN, a serial clock wire wiring port CLK, a power input wiring port VCC, a backlight control terminal wiring port BL and a ground wire wiring port GND.
As shown in fig. 4, the positive electrode of 18650 lithium battery is connected to port VCC of ATMEGA32U4 Pro Micro extension, port VCC of HC-SR04 ultrasonic ranging sensor, port VIN of VL53L0X flight time ranging sensor, and ports VCC and BL of Nokia 5110LCD display screen, respectively. The SDA and SCL of the ATMEGA32U4 Pro Micro expansion version are respectively connected with the SDA and SCL of the VL53L0X flight time ranging sensor; the ports 7 and A8 of the ultrasonic ranging sensor are respectively connected with the ports TRIG and ECHO of the HC-SR04 ultrasonic ranging sensor; the ports A6, 5, A7, SCLK and MISO are respectively connected with the ports DC, CE, RST, CLK and DIN of the okia 5110LCD screen.
The utility model discloses the during operation, the tester pastes the ticket card and leans on the utility model discloses the back middle part of shell, and do not shelter from two detection channel, and with the ticket card below, LCD screen 1 is towards the top, will gradually the utility model discloses be close to the card reader, paste through the test of infrared ranging module 4 and ultrasonic ranging module 5 and paste the distance between ticket card and the card reader, and with data transfer to singlechip, the singlechip passes through laser ranging time interval (500 ms) and well laser ranging, ultrasonic ranging's function, returns two distance values that infrared ranging module 4 and ultrasonic ranging module 5 measured to LCD screen 1 to quick acquisition pastes the distance of pasting ticket card and card reader at present, and two distance values can compare each other, refer to.
To sum up, through handing the utility model discloses, can the distance of rapid survey ticket card and card reader for test operation is more convenient, adopts sound wave range finding simultaneously and adds the two range finding modes of infrared range finding, makes the test result more accurate, has greatly improved work efficiency simultaneously.
The above embodiment is only one of the preferred embodiments of the present invention, and should not be used to limit the protection scope of the present invention, but all the insubstantial changes or modifications made in the spirit and the idea of the main design of the present invention, the technical problems solved by the embodiment are still consistent with the present invention, and all should be included in the protection scope of the present invention.
Claims (7)
1. A reader-writer non-contact distance test platform based on a single chip microcomputer is characterized by comprising a shell, a liquid crystal screen, a power switch, a control panel, a battery module, an infrared distance measurement module and an ultrasonic distance measurement module, wherein the liquid crystal screen is arranged on the front surface of the shell;
the back surface of the shell is a plane, the middle part of the shell is used for being attached to a ticket card, and the edge of the shell is provided with two detection channels which respectively correspond to the infrared ranging module and the ultrasonic ranging module;
the infrared distance measuring module and the ultrasonic distance measuring module are used for simultaneously detecting the distance between the attached ticket card and the card reader and transmitting information to the control board;
the control panel is used for calculating the distance between the ticket card and the card reader, and transmitting the calculation results of the distance measurement of the infrared distance measurement module and the ultrasonic distance measurement module to the liquid crystal display for display.
2. The reader-writer non-contact distance testing platform based on the single chip microcomputer according to claim 1, wherein the control board is ATMEGA32U4 Pro Micro expansion edition.
3. The non-contact distance testing platform for the reader-writer based on the single chip microcomputer according to claim 1, wherein the ultrasonic distance measuring module is an HC-SR04 ultrasonic distance measuring sensor.
4. The reader-writer non-contact distance testing platform based on the single chip microcomputer according to claim 1, wherein the infrared distance measuring module is a VL53L0X flight time distance measuring sensor.
5. The non-contact distance test platform for the reader-writer based on the single chip microcomputer according to claim 1, wherein the liquid crystal screen is a Nokia 5110LCD display screen.
6. The non-contact distance test platform for the reader-writer based on the single-chip microcomputer according to claim 1, wherein the battery module is a 18650 mobile power supply box 18650 with a charging plate inside and a lithium battery 2600mAH.
7. The reader-writer non-contact distance testing platform based on the single chip microcomputer according to claim 1, wherein a USB charging programming port is further installed on the side surface of the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221143796.2U CN217606086U (en) | 2022-05-12 | 2022-05-12 | Reader-writer non-contact distance testing platform based on single chip microcomputer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221143796.2U CN217606086U (en) | 2022-05-12 | 2022-05-12 | Reader-writer non-contact distance testing platform based on single chip microcomputer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217606086U true CN217606086U (en) | 2022-10-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221143796.2U Active CN217606086U (en) | 2022-05-12 | 2022-05-12 | Reader-writer non-contact distance testing platform based on single chip microcomputer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217606086U (en) |
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2022
- 2022-05-12 CN CN202221143796.2U patent/CN217606086U/en active Active
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