CN111208725A - Multifunctional alarm clock system for classroom - Google Patents
Multifunctional alarm clock system for classroom Download PDFInfo
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- CN111208725A CN111208725A CN202010120657.7A CN202010120657A CN111208725A CN 111208725 A CN111208725 A CN 111208725A CN 202010120657 A CN202010120657 A CN 202010120657A CN 111208725 A CN111208725 A CN 111208725A
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- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G13/00—Producing acoustic time signals
- G04G13/02—Producing acoustic time signals at preselected times, e.g. alarm clocks
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- G04G—ELECTRONIC TIME-PIECES
- G04G19/00—Electric power supply circuits specially adapted for use in electronic time-pieces
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Abstract
The invention discloses a multifunctional alarm clock system for classrooms, which relates to the technical field of electronic information and comprises a central server and a plurality of terminals connected with the central server, wherein each terminal is respectively hung in the corresponding classroom, the central server and the terminals realize the unified correction of clock information through a self-organizing algorithm, the terminals acquire the class schedule of each classroom through the central server, each terminal comprises a power supply module, and an embedded microprocessor, a network module, a storage module, an LCD display module and a sound module which are connected with the power supply module, the embedded microprocessor displays the corresponding schedule information through the LCD display module and/or plays the corresponding audio schedule information through the sound module when being in each schedule time period, and displays the time schedule information through the LCD display module when being in the course time period or the examination time period, thereby avoiding dispersing the attention of students, the system is more practical through the automatic management and control terminal, and is convenient for students, teachers and supervisors to use in schools.
Description
Technical Field
The invention relates to the technical field of electronic information, in particular to a multifunctional alarm clock system for a classroom.
Background
Alarms are an indispensable timing tool for schools. The traditional alarm can be uniformly controlled by a whole school according to needs, but the traditional alarm with uniform control has the problem that the function of the ring tone is unclear. Such as unclear whether to go to class or give a class ring tone, and whether the current ring tone is the second class in the course of the day? For another example, some important examinations (such as national english level four and six examinations) include multiple examination stages such as answering card issuing, full-filling of personal information, examination starting, answering card receiving, hearing examination starting, hearing examination ending, remaining ten-minute prompting, whole examination ending and the like, each examination stage needs alarm prompting, however, the traditional alarm only rings, specific functions need a proctor to pay attention and remind examinees all the time, and errors are prone to occurring.
Disclosure of Invention
The invention provides a multifunctional alarm clock system for classrooms, aiming at the problems and the technical requirements, the system realizes the prompt of the current time node for the current schedule arrangement and the corresponding operation of a user in the current day through the cooperation of an embedded microprocessor, an LCD display module and a sound module, and the accuracy of the terminal time is ensured by establishing communication connection between a central server and a terminal through a self-organizing algorithm.
The technical scheme of the invention is as follows:
a multifunctional alarm clock system for classrooms comprises a central server and a plurality of terminals connected with the central server, wherein each terminal is hung in each corresponding classroom, and the central server is in communication connection with each terminal through a self-organizing algorithm;
the central server performs clock information unified correction on each terminal, is also connected with a school educational administration system, acquires the classroom schedule of each classroom on the same day and sends the classroom schedule to the corresponding terminal;
each terminal comprises a power supply module, and an embedded microprocessor, a network module, a storage module, an LCD display module and an audio module which are connected with the power supply module, wherein the embedded microprocessor is connected with the network module, the storage module, the LCD display module and the audio module; the embedded microprocessor acquires the classroom schedule of the corresponding classroom in the same day from the central server through the network module and stores the classroom schedule in the storage module; the embedded microprocessor receives the clock information of the central server and uniformly corrects the clock information, calls the classroom schedule in the storage module, and displays the corresponding schedule information through the LCD display module and/or plays the audio schedule information corresponding to the schedule time period through the sound module when the embedded microprocessor is in each schedule time period.
The schedule time period is a teaching schedule time period, the teaching schedule time period comprises a class-in time node, a class-out time node and a course time period between the class-in time node and the class-out time node, schedule information corresponding to the teaching schedule time period comprises text schedule information and time schedule information, the text schedule information comprises at least one of course names of courses in a classroom, names of teachers giving lessons, class-in time nodes and class-out time nodes in the teaching schedule time period, and the time schedule information comprises real-time clock information and dates; the audio schedule information corresponding to the teaching schedule time period comprises a class-on audio corresponding to the class-on time node and a class-off audio corresponding to the class-off time node.
The embedded microprocessor plays corresponding audio through the sound module when reaching the class time node of the teaching schedule time period, and displays corresponding text schedule information through the LCD display module; when the curriculum period is within the teaching schedule time period, displaying corresponding time schedule information through an LCD display module; and when the node of the class leaving time of the teaching schedule time period is reached, playing corresponding class leaving audio through the sound module.
The method comprises the following steps that a schedule time period is an examination schedule time period, the examination schedule time period comprises an examination starting time node, an examination ending time node, a plurality of examination stage time nodes and examination time periods among the time nodes, schedule information corresponding to the examination schedule time period comprises text schedule information and time schedule information, the text schedule information comprises at least one of examination subjects of examinations conducted in a classroom in the examination schedule time period, proctor information, the examination starting time node, the examination ending time node, names of the examination stages contained in the examinations, starting and ending time points of the examination stages and functional operations of the examination stages, and the time schedule information comprises real-time clock information and dates; the audio schedule information corresponding to the examination schedule time period comprises examination starting audio corresponding to the examination starting time node, examination ending audio corresponding to the examination ending time node and prompting audio corresponding to each examination stage time node, and the prompting audio is used for prompting the functional operation of the examination stage started by the examination stage time node.
The embedded microprocessor plays corresponding examination starting audio through the sound module when reaching an examination starting time node of an examination schedule time period, and displays corresponding text schedule information through the LCD display module; when the time node of each examination stage is reached, playing a corresponding prompt audio through the sound module, and displaying corresponding text schedule information through the LCD display module; when the examination ending time node is reached, playing corresponding examination ending audio through the sound module, and displaying corresponding text schedule information through the LCD display module; and displaying corresponding time schedule information through the LCD display module when the mobile terminal is in each examination period.
The self-organizing algorithm is based on a TCP/IP network protocol, and the information transmission between the central server and the terminal comprises a detection message, a detection response message, an adding request response message, an IP information configuration message, a heartbeat packet message, a clock synchronization message, a classroom schedule message and a connection termination message;
the self-organizing algorithm comprises the following three stages:
a building stage: the method comprises the steps that a central server starts a self-organizing algorithm to monitor a fixed port, a terminal searches for the central server by sending a detection message to the fixed port periodically after being electrified, if the central server receives the detection message, a detection response message is sent to the terminal, the detection response message comprises an IP address of the central server and assignable IP addresses, after the terminal receives the detection response message, an adding request message is sent by taking the IP address of the central server as a destination address, the adding request message comprises a terminal IP address, a classroom number corresponding to the terminal and terminal clock information, the central server responds and confirms the adding request message, and after the adding request response message is sent to the terminal, the terminal stops sending the detection message;
a conversation phase: after the central server establishes connection with the terminal, the central server sends an IP information configuration message to the terminal to configure IP address information for the terminal; the method comprises the steps that a central server receives a heartbeat packet message sent by a terminal, the connection state of the heartbeat packet message with the terminal is regularly maintained through the heartbeat packet message, the heartbeat packet message comprises a classroom number corresponding to the terminal, a terminal IP address, the connection time with the central server and terminal clock information, and the heartbeat packet message is stored in a storage module; the method comprises the steps that a central server sends clock synchronization messages to a terminal periodically, and clock information of the terminal is synchronously managed through the clock synchronization messages, wherein the clock synchronization messages comprise the clock information of the central server; the central server sends classroom schedule messages to the terminal regularly, wherein the classroom schedule messages comprise schedule information;
and a session termination stage: the connection between the central server and the terminal is stopped, including that if the central server detects that the connection of the heartbeat packet message of any terminal is overtime or detects that the connection of any terminal sends a connection suspension message, the central server automatically deletes the corresponding terminal; or, the terminal detects the connection termination message sent by the central server, the terminal terminates the connection with the central server and resends the detection message.
The further technical scheme is that the formats of the clock synchronization message and the classroom schedule message comprise a source IP address, a destination address, a source port, a destination port and an AOP, wherein the source IP address and the source port record the IP address and the port information of the central server, and the destination IP address and the destination port record the IP address and the port information of the terminal; the format of the clock synchronization message also comprises a clock format and clock data, the clock format is used for determining the format of the transmitted clock data, the clock format comprises a clock standard form and a clock representation form, the clock standard form comprises world standard time, Greenwich mean time and Beijing time, and the clock representation form comprises T/D/M/Y, Y/M/D/T and a timestamp; the format of the classroom schedule message also comprises time information, a terminal position and course information data, the format of the time information is consistent with that of the clock data, the terminal position realizes that classroom numbers corresponding to a teaching department system and a terminal form a one-to-one mapping relation, and the course information data is json data.
The terminal further comprises a video monitoring module, the video monitoring module is connected with the embedded microprocessor and the network module, the video monitoring module comprises a network camera development module with a behavior recognition mode and a storage SD card, the network camera development module is used for collecting pictures and/or videos in a classroom and performing behavior recognition, meanwhile, the collected pictures and/or videos are stored in the storage SD card, and when a preset behavior is recognized, the embedded microprocessor obtains a field picture and sends an early warning signal to the central server.
The central server is further connected with an information system of a school management department through a TCP/IP network, and the information system logs in the central server and then remotely performs video inspection on the on-site conditions of a classroom or an examination hall through a video monitoring module of the terminal, or calls a historical video stored in the SD card for playback and viewing. The central server receives the early warning signal and the on-site picture sent by the embedded microprocessor and then pushes the early warning signal and the on-site picture to an information system of a school management department.
The further technical scheme is that the power supply module comprises a switch power supply circuit and a lithium battery circuit, the switch power supply circuit provides required power for the lithium battery circuit and other modules of the terminal, and the lithium battery circuit is used as a standby power supply of the terminal.
The beneficial technical effects of the invention are as follows:
1. the system of this application passes through the cooperation between embedded microprocessor and LCD display module and the stereo set module, no matter during classroom teaching or examination, embedded microprocessor controls the LCD display module at each schedule time quantum and shows the characters schedule information that corresponds, the simultaneous control stereo set module sends corresponding audio frequency schedule information, and control LCD display module when course period or examination period and show real-time clock information and date, decentralized student's attention has been avoided, only the jingle bell compares with traditional alarm clock, make this system more have the practicality through automated management and control terminal, make things convenient for the student, teacher and supervisory personnel use in the school.
2. The communication connection is established between the central server and the terminal by a self-organizing algorithm, so that the accuracy of the terminal time is ensured, and the connection state is maintained regularly. Compare with traditional alarm clock, the time at this application terminal does not have the time unanimity that error and different classrooms show, even when school had a power failure, power module's lithium battery circuit provided stand-by power supply, guarantees that the system continuously runs, the clock is accurate.
3. The terminal is hung in each classroom to ensure that each classroom can both hear the audio schedule information and see the schedule information, and compared with the traditional method that only one alarm clock is placed on each floor, the situation that the alarm clock is too harsh or far away and cannot be heard at all can not occur.
4. The video monitoring module through the terminal can also check the conditions in the classroom in real time, manual patrol is not needed, and when the network camera shooting development module identifies the preset behavior, the early warning signal can be sent to a school management system through the central server in time.
Drawings
Fig. 1 is a schematic block diagram of a multi-function alarm clock system for a classroom provided by the present application.
Fig. 2 is a schematic block diagram of a terminal provided in the present application.
Detailed Description
The following further describes the embodiments of the present invention with reference to the drawings.
The application discloses a multifunctional alarm clock system for classrooms, the functional block diagram of the system is shown in figure 1, the system comprises a central server and a plurality of terminals connected with the central server, for example, m terminals are included in figure 1, and m is larger than or equal to 2. And the central server and each terminal establish communication connection through a TCP/IP network by using a self-organizing algorithm. In this application, central server is located school's data center computer lab, and central server begins from every morning zero, accomplishes following functional operation:
(1) the central server keeps connection with the Internet, and after the clock information of the central server is uniformly corrected, the central server performs uniform correction on the clock information of each terminal.
(2) The central server is also connected with a school educational administration system, acquires the classroom schedule of each classroom in the same day and sends the schedule to the corresponding terminal.
The central server is connected with information systems of school management departments (such as a educational administration department or a school quality control department) through a TCP/IP network, and each information system realizes one-key login and authentication through the central server, so that the school management departments can conveniently acquire required information from the central server. After the information system logs in the central server, remote video inspection of the on-site conditions of the classroom or the examination room is realized through the video monitoring module of the terminal, or historical videos stored by the SD card are called for playback and viewing, so that manual inspection is not needed, and manpower is saved. The central server receives the early warning signal and the on-site picture sent by the embedded microprocessor of the terminal and then pushes the early warning signal and the on-site picture to an information system of a school management department.
In this application, each terminal is hung respectively and is established in each classroom that corresponds, ensures that every classroom can both hear audio frequency schedule information and see the classroom schedule on the day, compares with the every floor of tradition alarm clock of only putting, can not take place the alarm clock too far away and too harsh or the condition of hearing not seeing at all too far away. Each terminal comprises a power supply module, and an embedded microprocessor, a network module, a storage module, a video monitoring module, an LCD display module and an audio module which are connected with the power supply module, wherein the embedded microprocessor is connected with the network module, the storage module, the LCD display module and the audio module, and the video monitoring module is connected with the embedded microprocessor and the network module.
The power module comprises a switch power circuit and a lithium battery circuit, when the commercial power is normally supplied, the switch power circuit provides required power for the lithium battery circuit and all the other modules of the terminal, and when the commercial power has power failure due to reasons, the lithium battery circuit serves as a standby power supply of the terminal to provide required power for all the other modules of the terminal. The switch power supply circuit, the lithium battery circuit and the specific charging method do not belong to the core scope of the application, and mature technologies exist in the market, so that the detailed description is omitted.
The network module can be in a wired or wireless mode, and based on the current situation that WiFi full coverage is achieved in the current campus, the WiFi network module is preferably accessed into a TCP/IP network and used as a data transmission channel between the terminal and other modules.
The video monitoring module comprises a network camera shooting development module with a behavior recognition mode and a storage SD card, the network camera shooting development module is used for collecting photos and/or videos in a classroom and recognizing the behaviors, meanwhile, the collected pictures and/or videos are stored in the storage SD card, and when a preset behavior (such as group conflict or fighting behavior) is recognized, the embedded microprocessor reads control words of the video monitoring module to obtain live pictures and sends an early warning signal to the central server. The storage SD card can be used in a circulating covering mode, when group conflict occurs or fighting behaviors need to be investigated and evidence-obtained, a new storage SD card can be replaced, and videos or field pictures are obtained from a central server or an old storage SD card through a TCP/IP network by an authorized school management department.
The terminal finishes the following functional operations from morning hour each day:
(1) and the embedded microprocessor receives the clock information of the central server and uniformly corrects the clock information.
(2) The embedded microprocessor acquires the classroom schedule of the corresponding classroom in the day from the central server through the network module and stores the classroom schedule in the storage module.
The embedded microprocessor is internally provided with a built-in clock, and can automatically time according to the built-in clock, thereby completing the functions of counting the time of adults, months, days, hours, minutes and seconds. The embedded microprocessor adopted by the application ensures that the comparison and accumulation of the daily timing and the standard time is not more than 1 second. The embedded microprocessor calls the classroom schedule in the storage module, and when the embedded microprocessor is in each schedule time period, the embedded microprocessor displays the corresponding schedule information through the LCD display module and/or plays the audio schedule information corresponding to the schedule time period through the sound module.
When the schedule time period is a teaching schedule time period, the teaching schedule time period comprises a class-on time node, a class-off time node and a class time period between the class-on time node and the class-off time node, schedule information corresponding to the teaching schedule time period comprises text schedule information and time schedule information, the text schedule information comprises at least one of a class name, a name of a teaching teacher, a class-on time node and a class-off time node of a class performed in a classroom in the teaching schedule time period, and the time schedule information comprises real-time clock information and date. The audio schedule information corresponding to the teaching schedule time period comprises a class-on audio corresponding to the class-on time node and a class-off audio corresponding to the class-off time node.
When the schedule time period is an examination schedule time period, the examination schedule time period includes an examination start time node, an examination end time node, a plurality of examination stage time nodes and examination time periods among the time nodes, schedule information corresponding to the examination schedule time period includes text schedule information and time schedule information, the text schedule information includes at least one of examination subjects, proctor information, the examination start time node, the examination end time node, names of examination stages included in the examination, start and stop time points of the examination stages and functional operations of the examination stages in the examination schedule time period, and the time schedule information includes real-time clock information and dates. The audio schedule information corresponding to the examination schedule time period comprises examination starting audio corresponding to the examination starting time node, examination ending audio corresponding to the examination ending time node and prompting audio corresponding to each examination stage time node, and the prompting audio is used for prompting the functional operation of the examination stage started by the examination stage time node.
The present application details the above through two embodiments:
the first embodiment is as follows:
when teaching in class, the embedded microprocessor plays corresponding audio through the sound module when arriving at the time node of class in the teaching schedule time period, and displays corresponding text schedule information through the LCD display module, and specifically comprises the time node of class, the name of the current class, the class of the second class and the name of the teacher giving lessons, when the embedded microprocessor controls the sound module to stop sounding when being in the course time period of the teaching schedule time period (for example, after 5 minutes of the time node of class), and displays corresponding time schedule information in a text form or a graphic form through the LCD display module, namely real-time clock information and date.
When the node of the class leaving time of the teaching schedule time period is reached, the embedded microprocessor controls the sound module to play corresponding class leaving audio, and displays corresponding time schedule information, namely real-time clock information and date, in a text form or a graphic form through the LCD display module.
Alternatively, the class audio and the class audio may be selected by the central server as voice, ring tone or music.
Example two:
during a national four-level English examination, the embedded microprocessor plays corresponding examination starting audio through the sound module when reaching an examination starting time node of an examination schedule time period, and displays corresponding text schedule information through the LCD display module, wherein the text schedule information specifically comprises examination subjects, invigilator teacher information, examination starting time node and functional operation in an examination starting stage (for example, an invigilator teacher issues answer sheets and test papers, and an examinee prepares to fill in personal information). And when the time node of each examination stage is reached, the corresponding prompt audio is played through the sound module, and the corresponding text schedule information is displayed through the LCD display module. For example, when the time node of the hearing test stage is reached, a prompt audio of "hearing test start, please examinee prepare to debug earphone to test channel" is played through the sound module, and simultaneously, "hearing test start, please examinee prepare to debug earphone to test channel" is displayed through the LCD display module. And displaying corresponding time schedule information through the LCD display module when the mobile terminal is in each examination period. For example, after one minute at the starting time of the examination, the embedded microprocessor controls the sound module to stop sounding, and controls the LCD display module to display real-time clock information and date in a text form or a graphic form. The functional operations of the time nodes of the rest test phases and each test phase are the same as those described above, and are not described herein again.
The above two preferred embodiments illustrate: through the cooperation between embedded microprocessor and LCD display module and the sound module, no matter during classroom teaching or examination, embedded microprocessor controls LCD display module and sound module to indicate student and mr classroom schedule jointly when corresponding time node arrives, and control LCD display module to show real-time clock information and date when course period and examination period, decentralized student's attention has been avoided, only the jingle bell is compared with traditional alarm clock, make this system more have the practicality through automated management and control terminal, make things convenient for the student, teacher and supervisory personnel use in the school.
In the application, a communication connection is established between a central server and each terminal through a TCP/IP network by using a self-organizing algorithm, wherein the self-organizing algorithm is based on a TCP/IP network protocol, the networking type is a mesh type, the central server is a server side for operating the self-organizing algorithm, and the terminal is a client side for operating the self-organizing algorithm. The information transmission between the central server and the terminal comprises a detection message, a detection response message, an adding request response message, an IP information configuration message, a heartbeat packet message, a clock synchronization message, a classroom schedule message and a connection termination message.
The self-organizing algorithm comprises the following three stages:
a building stage: the method comprises the steps that a central server starts a self-organizing algorithm to monitor a fixed port (9900 port), a terminal searches for the central server by sending a detection message to the fixed port periodically after being electrified, if the central server receives the detection message, a detection response message is sent to the terminal, the detection response message comprises an IP address of the central server and assignable IP addresses, after the terminal receives the detection response message, an adding request message is sent by taking the IP address of the central server as a destination address, the adding request message comprises the IP address of the terminal, classroom numbers corresponding to the terminal and terminal clock information, the central server responds and confirms the adding request message, and after the adding request response message is sent to the terminal, the terminal stops sending the detection message.
A conversation phase: after the central server and the terminal are connected, the central server sends an IP information configuration message to the terminal to configure IP address information for the terminal, and the terminal does not need to respond. The method comprises the steps that a central server receives heartbeat packet messages sent by a terminal, the connection state of the heartbeat packet messages with the terminal is maintained regularly through the heartbeat packet messages, the heartbeat packet messages comprise classroom numbers corresponding to the terminal, terminal IP addresses, connection duration with the central server and terminal clock information, and the heartbeat packet messages are stored in a storage module. The central server periodically sends clock synchronization messages to the terminal, the clock information of the terminal is synchronously managed through the clock synchronization messages, the terminal does not need to respond, and the clock synchronization messages comprise the clock information of the central server. The central server sends classroom schedule messages to the terminal regularly, the classroom schedule messages comprise schedule information of classrooms on the same day, and the terminal does not need to respond.
The formats of the clock synchronization message and the classroom schedule message are shown in table 1 and table 2 respectively, and the clock synchronization message and the classroom schedule message together include a source IP address, a destination address, a source port, a destination port and an AOP, the source IP address and the source port record the IP address and the port information of the central server, and the destination IP address and the destination port record the IP address and the port information of the terminal. The AOP identifies the data packet for the self-organizing algorithm. The format of the clock synchronization message further includes a clock format and clock data, the clock format is used for determining the format of the transmitted clock data, the clock format includes a clock Standard form and a clock representation form, the clock Standard form includes Universal Time Coordinated (UTC), Greenwich Mean Time (GMT) and beijing Time (CST), and the clock representation form includes T/D/M/Y, Y/M/D/T and a timestamp, and the clock Standard form and the clock representation form need to be clear in the message. The format of the classroom schedule message also comprises time information, a terminal position and course information data, the format of the time information is consistent with that of the clock data, the terminal position field realizes that classroom numbers corresponding to a teaching department system and a terminal form a one-to-one mapping relation, and the course information data is json data.
TABLE 1
| Source IP address | Destination IP address | Source port | Destination port | AOP | Clock format | Clock data |
TABLE 2
And a session termination stage: the connection between the central server and the terminal is stopped, including that if the central server detects that the connection of the heartbeat packet message of any terminal is overtime or detects that the connection of any terminal sends a connection suspension message, the central server automatically deletes the corresponding terminal; or, the terminal detects the connection termination message sent by the central server, the terminal terminates the connection with the central server and resends the detection message.
The self-organizing algorithm adopted by the method realizes automatic access and centralized configuration of each terminal, does not need to participate in setting and configuration of the alarm clock system network manually, greatly simplifies network configuration workload of the terminal, and improves intelligent degree of the system.
What has been described above is only a preferred embodiment of the present application, and the present invention is not limited to the above embodiment. It is to be understood that other modifications and variations directly derivable or suggested by those skilled in the art without departing from the spirit and concept of the present invention are to be considered as included within the scope of the present invention.
Claims (10)
1. The multifunctional alarm clock system for the classrooms is characterized by comprising a central server and a plurality of terminals connected with the central server, wherein each terminal is hung in each corresponding classroom, and the central server is in communication connection with each terminal through a self-organizing algorithm;
the central server performs clock information unified correction on each terminal, is also connected with a school educational administration system, acquires the classroom schedule of each classroom on the day and sends the classroom schedule to the corresponding terminal, and the classroom schedule comprises a plurality of schedule time periods and corresponding text schedule information and audio schedule information;
each terminal comprises a power supply module, and an embedded microprocessor, a network module, a storage module, an LCD display module and an audio module which are connected with the power supply module, wherein the embedded microprocessor is connected with the network module, the storage module, the LCD display module and the audio module; the embedded microprocessor acquires the classroom schedule of the corresponding classroom on the day from the central server through the network module and stores the classroom schedule in the storage module; the embedded microprocessor receives the clock information of the central server and corrects the clock information in a unified way, the embedded microprocessor calls the classroom schedule in the storage module, and when the embedded microprocessor is in each schedule time period, the embedded microprocessor displays the corresponding schedule information through the LCD display module and/or plays the audio schedule information corresponding to the schedule time period through the sound module.
2. The system of claim 1, wherein the schedule time segment is a teaching schedule time segment, the teaching schedule time segment includes a time node of a lesson and a time node of a lesson, and a lesson time segment therebetween, and schedule information corresponding to the teaching schedule time segment includes text schedule information and time schedule information, the text schedule information includes at least one of a lesson name, a name of a teacher giving lesson, the time node of the lesson and the time node of the lesson performed in a classroom by the teaching schedule time segment, and the time schedule information includes real-time clock information and a date; and the audio schedule information corresponding to the teaching schedule time period comprises a class-on audio corresponding to the class-on time node and a class-off audio corresponding to the class-off time node.
3. The system of claim 2, wherein the embedded microprocessor plays corresponding class audio through the sound module and displays corresponding text schedule information through the LCD display module when reaching a class time node of the teaching schedule time period; when the curriculum period is within the teaching schedule time period, displaying corresponding time schedule information through the LCD display module; and when the class leaving time node of the teaching schedule time period is reached, playing corresponding class leaving audio through the sound module.
4. The system according to claim 1, wherein the schedule time period is an examination schedule time period, the examination schedule time period includes an examination start time node, an examination end time node, a plurality of examination stage time nodes and examination time periods among the time nodes, then the schedule information corresponding to the examination schedule time period includes text schedule information and time schedule information, the text schedule information includes at least one of examination subjects of examinations performed in a classroom in the examination schedule time period, proctor information, the examination start time node, the examination end time node, names of the examination stages included in the examinations, start and stop time points of the examination stages and functional operations of the examination stages, and the time schedule information includes real-time clock information and dates; the audio schedule information corresponding to the examination schedule time period comprises examination starting audio corresponding to the examination starting time node, examination ending audio corresponding to the examination ending time node and prompting audio corresponding to each examination stage time node, wherein the prompting audio is used for prompting the functional operation of the examination stage started by the examination stage time node.
5. The system according to claim 4, wherein the embedded microprocessor plays the corresponding examination start audio through the sound module when reaching the examination start time node of the examination schedule time period, and displays the corresponding text schedule information through the LCD display module; when the time node of each examination stage is reached, the corresponding prompt audio is played through the sound module, and the corresponding text schedule information is displayed through the LCD display module; when the examination ending time node is reached, playing corresponding examination ending audio through the sound module, and displaying corresponding text schedule information through the LCD display module; and displaying corresponding time schedule information through the LCD display module when the mobile terminal is in each examination period.
6. The system of claim 1, wherein the self-organizing algorithm is based on TCP/IP network protocol, and the information transmission between the central server and the terminal comprises probe message, probe response message, join request response message, IP information configuration message, heartbeat packet message, clock synchronization message, classroom schedule message, and connection termination message;
the self-organizing algorithm comprises the following three stages:
a building stage: the central server starts the self-organizing algorithm to monitor the fixed port, the terminal searches the central server by periodically sending the detection message to the fixed port after being electrified, if the central server receives the detection message, the central server sends the detection response message to the terminal, the detection response message comprises the IP address of the central server and the assignable IP address, after the terminal receives the detection response message, sending the joining request message by taking the IP address of the central server as a destination address, wherein the joining request message comprises a terminal IP address, a classroom number corresponding to the terminal and terminal clock information, the central server responds and confirms the joining request message, after sending the join request response message to the terminal, the terminal stops sending the detection message;
a conversation phase: after the central server establishes connection with the terminal, the central server sends the IP information configuration message to the terminal to configure IP address information for the terminal; the central server receives the heartbeat packet message sent by the terminal, the connection state of the terminal and the heartbeat packet message is regularly maintained through the heartbeat packet message, the heartbeat packet message comprises a classroom number corresponding to the terminal, a terminal IP address, the connection time of the central server and terminal clock information, and the heartbeat packet message is stored in the storage module; the central server sends the clock synchronization message to the terminal periodically, and the clock information of the terminal is synchronously managed through the clock synchronization message, wherein the clock synchronization message comprises the clock information of the central server; the central server sends the classroom schedule messages to the terminal regularly, and the classroom schedule messages comprise the schedule information;
and a session termination stage: the central server and the terminal stop connecting, including that if the central server detects that the connection of the heartbeat packet message of any terminal is overtime or detects that the connection of any terminal sends the connection suspension message, the central server automatically deletes the corresponding terminal; or, the terminal detects the connection termination message sent by the central server, and terminates the connection with the central server and resends the detection message.
7. The system as claimed in claim 6, wherein the formats of the clock synchronization message and the classroom schedule message include a source IP address, a destination address, a source port, a destination port, and an AOP, the source IP address and the source port record the IP address and the port information of the central server, and the destination IP address and the destination port record the IP address and the port information of the terminal; the format of the clock synchronization message further comprises a clock format and clock data, the clock format is used for determining the format of the transmitted clock data, the clock format comprises a clock standard form and a clock representation form, the clock standard form comprises world standard time, Greenwich mean time and Beijing time, and the clock representation form comprises T/D/M/Y, Y/M/D/T and a timestamp; the classroom schedule message format also comprises time information, terminal position and course information data, the time information and the clock data format are consistent, the terminal position realizes that a classroom number corresponding to a teaching office system and the terminal forms a one-to-one mapping relation, and the course information data is json data.
8. The system according to claim 1, wherein the terminal further comprises a video monitoring module, the video monitoring module is connected with the embedded microprocessor and the network module, the video monitoring module comprises a network camera development module with a behavior recognition mode and a storage SD card, the network camera development module is used for collecting pictures and/or videos in a classroom and performing behavior recognition, meanwhile, the collected pictures and/or videos are stored in the storage SD card, and when a preset behavior is recognized, the embedded microprocessor acquires the live pictures and sends an early warning signal to the central server.
9. The system according to claim 8, wherein the central server is further connected with an information system of a school administration department through a TCP/IP network, and after the information system logs in the central server, remote video inspection of the on-site conditions of a classroom or an examination room is realized through a video monitoring module of the terminal, or historical videos stored by the storage SD card are called for playback and viewing;
and the central server receives the early warning signal and the on-site picture sent by the embedded microprocessor and then pushes the early warning signal and the on-site picture to an information system of a school management department.
10. The system of claim 1, wherein the power module comprises a switching power circuit and a lithium battery circuit, the switching power circuit providing the required power to the lithium battery circuit and the remaining respective modules of the terminal, the lithium battery circuit serving as a backup power source for the terminal.
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