CN106372693A - Internet of Things technology-based intelligent school bag system and method - Google Patents

Abstract

The invention discloses an intelligent school bag system based on the Internet of Things technology, comprising: an intelligent school bag, the intelligent school bag is connected with an external intelligent terminal, and the intelligent terminal includes a smart phone and a PAD; the intelligent school bag based on the Internet of Things technology The schoolbag system mainly includes a microprocessor, a power supply module, a camera module, a sensor module, a storage module, a radio frequency identification module, a wireless communication module, an acousto-optic reminder module, a display module and a positioning module. module, and the item module is provided with an electronic tag. The invention realizes intelligent identification of items, real-time positioning, real-time photography, intelligent judgment of whether the items in the schoolbag are overweight, intelligent monitoring of the distance between intruders or illegal users and the smart schoolbag, and ensures the personal safety of the user. The use function of distance and movement can meet the requirements of actual use.

Description

A smart schoolbag system and method based on Internet of Things technology

technical field

The invention relates to an intelligent schoolbag system and method based on Internet of Things technology, belonging to the technical field of Internet of Things and intelligent schoolbags.

Background technique

Schoolbags are necessary for students to go to school. Since students have various courses and homework every day, the books and homework books placed in schoolbags are also different. This can easily cause students to forget to bring the books they need for the day, which will affect the course. And existing school bag just only possesses the function of holding books, and its function is single, can not monitor the situation of child at any time, needs to be improved urgently.

In the existing technical solutions, electronic scales also use RFID modules to read tagged items. In the Chinese Utility Model Invention Application whose publication number is CN 204331841 U and whose publication date is 2015.05.13, an RFID intelligent student safety positioning system is disclosed, which overcomes the deficiencies in the prior art and has a reasonable design structure. The school card or badge is equipped with RFID chips, and the RFID readers installed in the school, class, school bus or other designated areas on the campus are used to collect the time information of students passing through these locations, and then through control equipment and comprehensive services The platform and wireless signal transmission device send the student's dynamics to designated electronic devices such as parents and schools' mobile phones, smart terminals or computers. , Parents manage students to provide a convenient means, in case of accidents in students. However, it cannot identify the items in the school bag, and cannot self-weight. In addition, there are limitations in the traditional smart schoolbags for student safety monitoring. In the Chinese invention application with the publication number CN 103729745 and the publication date of 2014.04.16, a system and method for checking and reminding the operation data of smart schoolbag items are disclosed. Including inspection and reminder system including background management system, smart schoolbag terminal and item terminal 3 modules, all modules can work together. The invention uses radio frequency technology to collect non-contact information on the electronic labels pasted on items, matches the required items through information such as network class schedules and intelligent entry, and reminds the missing status of items through the screen and voice, and reminds updates in real time through network push technology Homework, teaching materials and other information, through GPS technology to locate schoolbags and student locations, and finally realize intelligent inspection reminders of items, homework, etc., and student safety positioning monitoring. Although the invention can realize the intelligent identification of the items in the schoolbag, and the distribution operation, and real-time positioning, the invention cannot self-service weighing, cannot prevent illegal users from approaching reminders, and cannot record the user's exercise volume, exercise status, and number of steps. For this reason, it is necessary to design a new technical solution that can comprehensively overcome the deficiencies in the background technology.

Contents of the invention

The present invention aims at the deficiencies of the existing technology and provides an intelligent schoolbag system and method based on Internet of Things technology. The distance between intruders or illegal users and the smart schoolbag ensures the personal safety of the user. At the same time, it also has the function of intelligently recording the user's exercise amount and exercise distance, which meets the actual use requirements.

In order to solve the above problems, the technical scheme adopted in the present invention is as follows:

A smart school bag system based on Internet of Things technology, comprising: a smart school bag, the smart school bag is connected to an external smart terminal, and the smart terminal includes a smart phone and a PAD;

The intelligent school bag system based on the Internet of Things technology mainly includes a microprocessor, a power supply module, a camera module, a sensor module, a storage module, a radio frequency identification module, a wireless communication module, an acousto-optic reminder module, a display module and a positioning module. An item module is connected to the radio frequency identification module, and an electronic tag is arranged on the item module.

As an improvement of the above technical solution, the power module includes a large-capacity rechargeable lithium battery and power management, the lithium battery is used to store the electrical energy required by the device, and the power management is used to monitor the charging of the rechargeable lithium battery status and remaining power, and has an electronic circuit that optimizes the power consumption of the smart schoolbag and manages the charging of the rechargeable battery module.

As an improvement of the above-mentioned technical solution, the camera module has a built-in camera, and the camera uses an OV2640 camera for collecting and taking pictures and initial processing of the images.

As an improvement of the above technical solution, the sensor module includes an acceleration of gravity sensor, an ultrasonic sensor and a pressure sensor, and the acceleration of gravity sensor is used to judge the user's exercise state and record the distance the user walks or runs; the ultrasonic sensor is used for The distance between the intruder and the user is collected; the pressure sensor is used to weigh the total weight of the user's school bag.

As an improvement of the above technical solution, the storage module includes an external memory, which is mainly used to store various data sent by the mobile phone terminal.

As an improvement of the above technical solution, the radio frequency identification module is mainly composed of an RFID reader, an antenna and an electronic tag, wherein the RFID reader uses MF-RC522 to read or write the The electronic label information and the control instructions sent by the receiving microprocessor are processed accordingly.

As an improvement of the above technical solution, the wireless communication module includes WiFi, Bluetooth and 3G/4G modules, and the WiFi uses ESP8266 serial port WiFi, the Bluetooth uses BLE4.0, and the 3G/4G module uses Huawei's LTE4G module ME906E module.

As an improvement of the above technical solution, the acousto-optic reminder module mainly includes a speaker, an audio chip and an LED light, the speaker is a micro speaker, the audio chip is a WTV020-SD module, and the LED light is a light emitting diode.

As an improvement of the above technical solution, the display module includes a touch screen and adopts a TFT liquid crystal screen; the positioning module includes a GPS, and the GPS is used to collect the location information of a user carrying a smart schoolbag, and the GPS has a built-in gyroscope and GPRS module.

As an improvement of the above technical solution, the functional method flow of the intelligent schoolbag system based on the Internet of Things technology includes the following steps:

Step 1: Power on the system, initialize the software and hardware, set up the network connection, and establish a network connection with the smart terminal. The connection method can be Bluetooth, WiFi, 3G/4G network, and the smart terminal transmits the content data of the class schedule to the smart schoolbag system. After receiving, store the course data in memory;

Step 2: The system starts the RFID reader to identify the items in the schoolbag, and judges whether the required items are in the smart schoolbag according to the current date and the content of the class schedule. If the scanned item or some items are not within the radio frequency range, the system will send Sound and light alarm to remind users;

Step 3: If all the required items are scanned, the weighing module measures the total weight of the items in the schoolbag to determine whether the weight exceeds the maximum weight that the user can bear. If it exceeds the range, the system will send out an audible and visual alarm to remind the user , if the weight range is not exceeded, the system enters the school mode, and the user is carrying the schoolbag on the way to school, the smart schoolbag measures the distance between other people and the smart schoolbag in real time, and judges whether it exceeds the safe distance value set by the system;

Step 4: If the safety distance value is exceeded, the system will send out an audible and visual alarm to remind the user. At the same time, the system will send instructions to the camera, which will take pictures, compress the photos, store them in the memory, and upload them to the smart terminal through the network equipment;

Step 5: The gravitational acceleration sensor of the system records the user's steps in real time, stores them in the memory, and uploads them to the smart terminal device through the network. The GPS module records the user's action footprints and time spent in a certain place in real time, and the system stores these data in the sensor, and upload it to the smart terminal device through the network.

The present invention compares with prior art, and implementation effect of the present invention is as follows:

An intelligent schoolbag system and method based on the Internet of Things technology described in the present invention, the system realizes intelligent identification of items, real-time positioning, real-time photography, intelligent judgment of whether the items in the schoolbag are overweight, intelligent monitoring of intruders or illegal users and intelligent schoolbags At the same time, it also has the function of intelligently recording the user's exercise volume and exercise distance, achieving time-saving, labor-saving and efficient use effects, and meeting the actual use requirements.

Description of drawings

Fig. 1 is a block diagram of the internal structure of the intelligent school bag of the present invention;

Fig. 2 is a data interaction diagram between the intelligent school bag and the intelligent terminal according to the present invention;

Fig. 3 is a schematic diagram of the functional flow of the system of the present invention.

detailed description

The content of the present invention will be described below in conjunction with specific embodiments.

As shown in Fig. 1 to Fig. 3, it is a kind of intelligent schoolbag system based on Internet of Things technology according to the present invention, comprising: intelligent schoolbag, intelligent schoolbag is connected with external intelligent terminal, and intelligent terminal includes smart phone and PAD; The smart schoolbag system of the Internet of Things technology mainly includes a microprocessor, a power module, a camera module, a sensor module, a storage module, a radio frequency identification module, a wireless communication module, an acousto-optic reminder module, a display module and a positioning module. An item module is connected, and an electronic tag is arranged on the item module.

Further, the power module includes a large-capacity rechargeable lithium battery and power management. The battery is used to store the electrical energy required by the device. The power management module is used to monitor the charging status and remaining power of the rechargeable battery to optimize the power consumption of the smart schoolbag. And the electronic circuit that manages the charging of the rechargeable battery module and improves the service life of the battery. The device provides a micro USB charging interface, that is, a micro USB interface, which is convenient for charging the rechargeable battery module. It is small in size, takes up little space, and has strong versatility.

As a further improvement, the camera module has a built-in camera module, which uses the OV2640 camera module. This module has the characteristics of small size, low power consumption, compatibility with various bus connections, and high resolution. It is used for the initial processing of capturing photos and images.

Further improved, the sensor module includes an acceleration of gravity sensor, an ultrasonic sensor, and a pressure sensor. The acceleration of gravity sensor is used to judge the user's exercise state and record the distance walked or run. The ultrasonic sensor is used to collect the distance between the intruder and the user. When the user is close to the user, the system judges whether the distance is less than the threshold according to the warning threshold set by the user. If it is smaller, the microprocessor will send an instruction to the sound and light reminder module to release the danger information; the pressure sensor is used to weigh the user. The total weight of the school bag (containing items), if this weight exceeds the maximum weight that the user can bear, the microprocessor will send instructions to the sound and light reminder module, send an alarm message, and display the information on the display screen simultaneously.

Further improved, the storage module includes an external memory for storing class schedules and homework data issued by the mobile terminal, storing data collected by user sensors, image data, GPS data, RFID reader-writer card data, power management logs, etc. Wait.

For further improvement, the radio frequency identification module is mainly composed of RFID reader, antenna and electronic tag, among which, the RFID read and write module adopts MF-RC522, which is applied to 13.56MHz non-contact communication with high integration read and write A member of the card series chips, it is a low-voltage, low-cost, small-sized non-contact read-write card chip of NXP Company. It is a good choice for the development of smart meters and portable handheld devices. It is responsible for reading or writing The electronic tag information attached to the items (books, homework, stationery, etc.), read the electronic tag according to the class schedule or homework content of the day, check whether the required items are placed in the school bag, and receive the control sent by the microprocessor command, and proceed accordingly.

To further improve, the wireless communication module includes WiFi, Bluetooth and 3G/4G modules. According to different occasions, the user chooses the network mode independently, which is mainly responsible for the communication and data exchange between the terminal device and the smart schoolbag, and the class schedule and homework content in the mobile terminal. Download to the smart schoolbag memory. Upload the data collected by the sensor stored in the smart schoolbag, GPS information, user's exercise amount, photos taken in danger and other data to the terminal;

Among them, the WiFi module uses ESP8266 serial port WIFI, which is small in size, low in power consumption, and powerful in function. It runs LWIP protocol internally and can be embedded in any embedded device. It supports three modes: AP, STA, AP+STA coexistence mode, simple and efficient AT command , convenient and efficient development;

Among them, the Bluetooth module uses BLE4.0, and the Bluetooth chip chooses TI's CC2540 chip. CC2540 is a real system single chip with ultra-low power consumption. It integrates microcontrollers, host terminals and application programs on one component. CC2540 Combining an excellent radio frequency transmission receiver and an industry-standard enhanced 8051 microcontroller, it includes peripherals for connecting analog and digital sensors, built-in programmable flash memory, and accurate radio frequency signal strength indication. Full-speed USB 2.0 interface, built-in AES-128 encryption engine;

Among them, the 3G/4G module selects Huawei's LTE 4G module ME906E module, supports Telecom 4G, China Unicom 4G+3G, and provides NGFF interface.

As a further improvement, the sound and light reminder module mainly includes a speaker, an audio chip, and an LED light. The voice chip chooses the WTV020-SD module, which is a voice module with a large-capacity storage that can rewrite voice content. The maximum capacity that can be plugged in is The 1GB SD card memory can load WAV format voice and AD4 format voice; the speaker can be a miniature speaker with low power consumption and small size; the light-emitting diode can be a light-emitting diode that supports multiple colors.

At the same time, when the sensors, cameras, RFID readers and other equipment in the system collect abnormal data, the microprocessor judges it as an abnormal event, at this time, it will send a playback signal to the voice chip, the voice chip works, and the voice signal amplification circuit drives the speaker to play Early warning information, at the same time, the light-emitting diode changes from constant green to flashing red to play a reminder role, and the early warning information is also displayed on the display screen.

As a further improvement, the display module includes a touch screen and adopts a TFT liquid crystal screen; the positioning module includes a GPS, which is used to collect location information of a user carrying a smart schoolbag, and the GPS has a built-in gyroscope and a GPRS module.

Specifically, the method flow of the smart school bag system based on the Internet of Things technology includes the following steps:

Step 1: Power on the system, initialize the software and hardware, set up the network connection, and establish a network connection with the smart terminal. The connection method can be Bluetooth, WiFi, 3G/4G network, and the smart terminal transmits the content data of the class schedule to the smart schoolbag system. After receiving, store the course data in memory;

Step 2: The system starts the RFID reader to identify the items in the schoolbag, and judges whether the required items are in the smart schoolbag according to the current date and the content of the class schedule. If the scanned item or some items are not within the radio frequency range, the system will send Sound and light alarm to remind users;

Step 3: If all the required items are scanned, the weighing module measures the total weight of the items in the schoolbag to determine whether the weight exceeds the maximum weight that the user can bear. If it exceeds the range, the system will send out an audible and visual alarm to remind the user , if the weight range is not exceeded, the system enters the school mode, and the user is carrying the schoolbag on the way to school, the smart schoolbag measures the distance between other people and the smart schoolbag in real time, and judges whether it exceeds the safe distance value set by the system;

Step 4: If the safety distance value is exceeded, the system will send out an audible and visual alarm to remind the user. At the same time, the system will send instructions to the camera, which will take pictures, compress the photos, store them in the memory, and upload them to the smart terminal through the network equipment;

Step 5: The gravitational acceleration sensor of the system records the user's steps in real time, stores them in the memory, and uploads them to the smart terminal device through the network. The GPS module records the user's action footprints and time spent in a certain place in real time, and the system stores these data in the sensor, and upload it to the smart terminal device through the network.

The above content is a detailed description of the present invention in conjunction with specific embodiments, and it cannot be assumed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the technical field of the present invention, without departing from the concept of the present invention, some simple deductions or substitutions can be made, which should be deemed to belong to the protection scope of the present invention.

Claims (10)

1. A smart school bag system based on Internet of Things technology, comprising: a smart school bag, characterized in that: the smart school bag is connected with an external smart terminal, and the smart terminal includes a smart phone and a PAD; The intelligent school bag system based on the Internet of Things technology mainly includes a microprocessor, a power supply module, a camera module, a sensor module, a storage module, a radio frequency identification module, a wireless communication module, an acousto-optic reminder module, a display module and a positioning module. An item module is connected to the radio frequency identification module, and an electronic tag is arranged on the item module. 2. A kind of intelligent school bag system based on Internet of Things technology according to claim 1, it is characterized in that: described power supply module comprises the rechargeable lithium battery of large capacity and power management, and described lithium battery is used for storage device required The power management is used to monitor the charging state and remaining power of the rechargeable lithium battery, and has an electronic circuit for optimizing the power consumption of the smart schoolbag and managing the charging of the rechargeable battery module. 3. A kind of intelligent school bag system based on the Internet of Things technology according to claim 1, characterized in that: the camera module has a built-in camera, and the camera adopts an OV2640 camera for collecting and taking photos and initial processing of images. 4. A kind of intelligent school bag system based on Internet of Things technology according to claim 1, it is characterized in that: described sensor module comprises gravitational acceleration sensor, ultrasonic sensor and pressure sensor, and described gravitational acceleration sensor is used for judging the motion state of user , record the user’s walking or running distance; the ultrasonic sensor is used to collect the distance between the intruder and the user; the pressure sensor is used to weigh the total weight of the user’s schoolbag. 5. The intelligent school bag system based on the Internet of Things technology according to claim 1, wherein the storage module includes an external memory, which is mainly used for storing various types of data issued by the mobile terminal. 6. A smart school bag system based on the Internet of Things technology according to claim 1, wherein the radio frequency identification module is mainly composed of an RFID reader, an antenna and an electronic tag, wherein the RFID reader MF-RC522 is used to read or write the electronic tag information attached to the item and receive the control instructions sent by the microprocessor for corresponding processing. 7. According to claim 1, a kind of intelligent school bag system based on Internet of Things technology is characterized in that: said wireless communication module includes WiFi, Bluetooth and 3G/4G modules, and said WiFi adopts ESP8266 serial port WiFi, said Bluetooth BLE4.0 is selected, and the 3G/4G module uses Huawei's LTE4G module ME906E module. 8. A kind of intelligent schoolbag system based on the Internet of Things technology according to claim 1, characterized in that: the sound and light reminder module mainly includes a loudspeaker, an audio chip and an LED light, the loudspeaker adopts a micro-speaker, and the audio chip The WTV020-SD module is adopted, and the LED lamp adopts light-emitting diodes. 9. A smart school bag system based on the Internet of Things technology according to claim 1, characterized in that: the display module includes a touch screen, and adopts a TFT liquid crystal screen; the positioning module includes a GPS, and the GPS is used to collect back The user location information of the smart schoolbag, and the GPS has built-in gyroscope and GPRS module. 10. According to claim 1-9, a smart schoolbag system method based on Internet of Things technology, characterized in that: the system method process includes the following steps: Step 1: Power on the system, initialize the software and hardware, set up the network connection, and establish a network connection with the smart terminal. The connection method can be Bluetooth, WiFi, 3G/4G network, and the smart terminal transmits the content data of the class schedule to the smart schoolbag system. After receiving, store the course data in memory; Step 2: The system starts the RFID reader to identify the items in the schoolbag, and judges whether the required items are in the smart schoolbag according to the current date and the content of the class schedule. If the scanned item or some items are not within the radio frequency range, the system will send Sound and light alarm to remind users; Step 3: If all the required items are scanned, the weighing module measures the total weight of the items in the schoolbag to determine whether the weight exceeds the maximum weight that the user can bear. If it exceeds the range, the system will send out an audible and visual alarm to remind the user , if the weight range is not exceeded, the system enters the school mode, and the user is carrying the schoolbag on the way to school, the smart schoolbag measures the distance between other people and the smart schoolbag in real time, and judges whether it exceeds the safe distance value set by the system; Step 4: If the safety distance value is exceeded, the system will send out an audible and visual alarm to remind the user. At the same time, the system will send instructions to the camera, which will take pictures, compress the photos, store them in the memory, and upload them to the smart terminal through the network equipment; Step 5: The gravitational acceleration sensor of the system records the user's steps in real time, stores them in the memory, and uploads them to the smart terminal device through the network. The GPS module records the user's action footprints and time spent in a certain place in real time, and the system stores these data in the sensor, and upload it to the smart terminal device through the network.