CN110728867A - MQTT protocol-based connection communication mode and interactive answering equipment - Google Patents
MQTT protocol-based connection communication mode and interactive answering equipment Download PDFInfo
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- CN110728867A CN110728867A CN201910982002.8A CN201910982002A CN110728867A CN 110728867 A CN110728867 A CN 110728867A CN 201910982002 A CN201910982002 A CN 201910982002A CN 110728867 A CN110728867 A CN 110728867A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/08—Electrically-operated educational appliances providing for individual presentation of information to a plurality of student stations
- G09B5/14—Electrically-operated educational appliances providing for individual presentation of information to a plurality of student stations with provision for individual teacher-student communication
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B7/00—Electrically-operated teaching apparatus or devices working with questions and answers
- G09B7/02—Electrically-operated teaching apparatus or devices working with questions and answers of the type wherein the student is expected to construct an answer to the question which is presented or wherein the machine gives an answer to the question presented by a student
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
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Abstract
The invention provides a connection communication mode and interactive answer equipment based on an MQTT protocol, which belong to educational amusement equipment and comprise a communication mode of directly utilizing a UUID in a CPU (central processing unit) of a client as an identifier for communication, and interactive answer equipment which is based on the communication mode, takes question-making equipment as a server and takes a plurality of interactive induction learning piles to form respective clients; the question setting device comprises a question display screen for displaying questions; the interactive induction learning pile comprises a machine body; the surface of the machine body is provided with an option display screen and a first capacitance induction module; a CPU and an RFID identity recognition module are installed in the machine body. The connection communication mode and the interactive answering equipment have the advantages that the system is complete in composition, rich in man-machine interactive elements, small in influence of the environment, suitable for various environments in the day or at night, easy to implement, healthy and environment-friendly, good in ornamental and interactive effects and capable of achieving good propaganda effects.
Description
Technical Field
The invention relates to the field of education and amusement equipment, in particular to a connection communication mode and interactive answer equipment based on an MQTT protocol.
Background
With the development of economy, the progress of society and the coming of the internet era, more and more learning modes, more and more exercise modes, more and more communication modes and less gathering and interaction communication are achieved. At present, a plurality of handheld learning devices, learning machines, online learning courses and the like exist in the market; the exercise equipment is also diversified indoors and outdoors; communication modes QQ, WeChat, mobile phone, microblog and the like.
The existing learning equipment is easy to fatigue people, the interest level is reduced, and no exercise function is provided; the exercise equipment is easy to fatigue people and has no interactive communication and learning functions. The communication mode has no exercise and no interactive communication and learning functions.
Moreover, in the design process of interactive equipment, some problems need to be solved: such as the communication process of the device is complicated and not secure.
In the existing interactive device, the MQTT communication protocol is often adopted for mutual information communication, but the existing MQTT communication mode is shown in fig. 1:
step 1: writing the planned unique code into a nonvolatile memory of the equipment in advance when the equipment is produced;
step 2: the equipment is powered on and started, and an operating system and basic software are initialized;
and step 3: the software reads the unique code from the memory of the device;
and 4, step 4: carrying out certain conversion on the unique code to generate a character string B;
and 5: initializing an MQTT Client, initializing an MQTT CONNECT control message, writing a character string B into a Client Identifier field of the MQTT CONNECT control message, and sending the CONNECT message to an MQTT server by the MQTT Client;
step 6: and the MQTT client side continues to initialize to complete the connection work with the MQTT server. Due to the uniqueness of the ClientID, the ClientID repetition can not exist when the same type of equipment is connected to the same MQTT server, and the protocol standard of the MQTT is met;
and 7: after the upper application is started, the MQTT channel is used for communicating with a server or other MQTT clients.
This form requires the pre-planning of a unique code at the time of device production, and this unique code currently has no uniform standard and occasionally code collisions occur. Also, the writing of the unique code lengthens the manufacturing steps, increases the manufacturing cost, and may even unnecessarily reduce the yield.
Disclosure of Invention
The invention provides a connection communication mode based on an MQTT protocol and interactive answering equipment, and aims to solve the problems of the interactive answering equipment in the prior art.
The invention is realized by the following steps:
a connection communication mode based on MQTT protocol is used for communication among clients through a server, a CPU of each client has a unique device identifier, and the connection communication mode comprises the following steps:
the software of the client extracts the unique device identifier of the client;
encoding the unique device identifier to form a character string A;
initializing the client, initializing an MQTT CONNECT control message, and writing the character string A into a device identifier field of the MQTT CONNECT control message;
the client sends the MQTT CONNECT control message containing the character string A to the server;
the client is initialized again and keeps in communication connection with the server;
and all the clients connected with the server use MQTT channels for communication.
In one embodiment of the invention, in the step of extracting the unique device identifier of itself by the software of the client:
the software of the client extracts the unique device identifier in its own CPU corresponding register.
In one embodiment of the invention, in the step of encoding the unique device identifier into a string a:
the unique device identifier is encoded using BASE64 encoding to form string a.
An interactive answering device communicates by using the connection communication mode based on the MQTT protocol, and comprises a question setting device serving as the server and a plurality of interactive induction learning piles serving as the client;
the question setting device comprises a question display screen for displaying questions;
the interactive induction learning pile comprises a machine body;
the surface of the machine body is provided with an option display screen and a first capacitance induction module;
and a CPU and an RFID identity recognition module are installed in the machine body.
In one embodiment of the invention, the method further comprises installing a floor mat;
the installation ground is fixed on the ground mat and is provided with a first installation part for installing the question setting equipment and a plurality of second installation parts for installing the interactive induction learning pile.
In an embodiment of the invention, the first mounting piece is a first mounting plate embedded in the mounting floor mat, the first mounting plate is provided with a first mounting through hole, the question issuing equipment comprises a host base, and the host base is provided with a host fixing hole matched with the first mounting through hole.
In an embodiment of the invention, the second mounting part is a second mounting plate embedded in the mounting floor mat, the second mounting plate is provided with a second mounting through hole, the machine body includes a fixing base, and the fixing base is provided with a learning pile fixing hole matched with the second mounting through hole.
In an embodiment of the invention, the installation floor mat is a circular mat, the first installation part is eccentrically arranged on one side of the installation floor mat, the edge of the installation floor mat close to the first installation part is an installation side, and the plurality of interactive induction learning piles are distributed on the installation floor mat on one side of the first installation part far away from the installation side in a scattering manner.
In one embodiment of the present invention, one of the interactive sensing learning peg forms a confirmation peg for confirming a selection, and the other interactive sensing learning peg forms a selection peg for selecting an option.
In one embodiment of the invention, the mobile phone further comprises a bracelet, wherein the bracelet comprises a single chip microcomputer, a second communication module and a second capacitance sensing module;
a first communication module is also arranged in the machine body;
the first communication module and the second communication module can be in communication connection.
The invention has the beneficial effects that: the interactive answering device provided by the invention has the advantages that the system is complete in composition, rich in man-machine interactive elements, less influenced by the environment, suitable for various environments in the day or at night, easy to implement, healthy and environment-friendly, good in ornamental and interactive effects and capable of achieving good propaganda effects.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic flow chart of a prior art MQTT-based connection communication method;
FIG. 2 is a schematic flow chart of a MQTT-based connection communication method provided by the invention;
fig. 3 is a schematic structural diagram of an interactive answering device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a first view angle of an interactive sensing learning peg according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an interactive sensing learning peg in a second view according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a third view angle of an interactive sensing learning peg according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a fourth view of the interactive sensing learning peg according to the embodiment of the invention.
Icon: 001-interactive answering equipment; 010-interactive induction learning peg; 030-question setting equipment; 033-topic display screen; 031-screen frame; 050-mounting a ground mat; 051-installing side; 053-a first mounting plate; 055-second mounting plate; 100-body; 200-option display screen; 110-a stationary base; 130-a mounting housing; 111-learning pile fixing holes; 131-a maintenance port; 150-a loudspeaker housing; 151-sound transmission hole; 133-slap board.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In the description of the present invention, it is to be understood that the terms indicating an orientation or positional relationship are based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature may be present on or under the second feature in direct contact with the first and second feature, or may be present in the first and second feature not in direct contact but in contact with another feature between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.
Example one
Referring to fig. 2, the connection communication method based on MQTT protocol is used for communication among clients through a server, and is specifically applied to communication of interactive inductive learning stakes 010 as clients of an interactive answering device 001 in the present invention, and a question setting device 030 of the interactive answering device 001 forms an MQTT server. The interactive induction learning stub 010 serving as the client is provided with a CPU (central processing unit) which is provided with a unique device identifier, and the connection communication mode based on the MQTT protocol comprises the following steps:
step 1: software of the client extracts a unique device identifier in a corresponding register of a CPU of the client;
step 2: encoding the unique device identifier using BASE64 encoding to form a string a;
and step 3: initializing a Client, initializing an MQTT CONNECT control message, and writing a character string A into a Client Identifier (Client ID) device Identifier field of the MQTT CONNECT control message;
and 4, step 4: the client sends an MQTT CONNECT control message containing the character string A to the server;
and 5: the client is initialized again and keeps in communication connection with the server; due to the uniqueness of the ClientID, the ClientID repetition can not exist when the same type of equipment is connected to the same MQTT server, and the protocol standard of the MQTT is met;
step 6: after the upper application is started, all the clients connected with the server use the MQTT channel for communication.
By using the connection communication mode based on the MQTT protocol provided by the embodiment, the generated MQTT client-id identification code does not depend on character strings which are written into a storage area (such as flash) of the embedded device in advance. But directly uses the UUID (unique device identification code) on the CPU chip as a basis. The UUID of the CPU chip is solidified in the chip after production, and the UUID has uniqueness and invariance on the same chip. The method can meet the requirement of MQTT client-id uniqueness and save the action of writing character codes in the storage area of the embedded equipment in advance.
Example two
Referring to fig. 3, the interactive answering device 001 includes a question setting device 030 as a server in the first embodiment and seven interactive sensing learning stakes 010 as clients in the first embodiment, where six interactive sensing learning stakes 010 are selection stakes for selecting options, and one interactive sensing learning stake 010 is a confirmation stake for confirming selection;
the question apparatus 030 includes a question display screen 033 for displaying a question.
Referring to fig. 4, 5 and 6, the interactive sensing learning post 010 includes a machine body 100, and an option display screen 200 formed by an LED screen or an LCD screen, a first capacitive sensing module and a multi-color lamp are disposed on a surface of the machine body 100; the body 100 is provided therein with a CPU, an RFID identification module, and a first communication module. The multi-color lamp is arranged outside the machine body 100, and can emit light with different colors and generate flickering with different frequencies. The top of the body 100 is provided with a slapping plate 133, a first capacitance sensing module is arranged between the slapping plate 133 and the body 100, and the first capacitance sensing module is used for sensing the pressure of the outside on the slapping plate 133, converting the pressure into an electric signal and transmitting the electric signal to the CPU.
The option display screen 200, the first capacitance induction module, the multi-color lamp, the RFID identification module and the first communication module are all electrically connected with the CPU and are logically driven by the CPU. The CPU-driven option display screen 200, the first capacitive sensing module, the multi-color lamp, the RFID identification module, and the first communication module are all mature prior art, and therefore are not described in detail.
The CPU is electrically connected with the option display screen 200, the first capacitance sensing module and the RFID identity recognition module so as to realize the data receiving and outputting of the CPU to each output and input component. The first capacitance sensing module is used for inputting external touch information, the CPU receives and processes the electric signal of the first capacitance sensing module, and then transmits the signal to the other interactive sensing learning piles 010 to share the result, and further, after the first capacitance sensing module of the confirmation pile receives the external touch information, the CPU of the confirmation pile can notify the CPU of the unselected other selection piles to stop outputting the item display screen 033 and other operations.
In this embodiment, the whole interactive answering device 001 is an integral body, and therefore, the interactive answering device further comprises a mounting ground mat 050 for mounting a question setting device 030 and seven interactive induction learning piles 010;
the installation ground mat 050 is fixedly provided with a first installation part for installing question equipment 030 and a plurality of second installation parts for installing interactive induction learning piles 010.
Specifically, first installed part is for inlaying first mounting disc 053 of establishing in installation ground mat 050, is provided with first installation through-hole on first mounting disc 053, and the equipment for setting out a question 030 is provided with the host computer fixed orifices with first installation through-hole complex including host computer base and the screen frame body 031 of dismantling the connection on the host computer base, and the bolt passes first installation through-hole, host computer fixed orifices in order to realize the fixed of the equipment for setting out a question 030. The screen frame 031 has a title display 033 disposed therein and also has speakers provided to emit sounds. Additionally, ornaments such as lamp belts can be arranged to increase the interaction type.
Referring to fig. 7, the second mounting member is a second mounting plate 055 embedded in the mounting floor mat 050, the second mounting plate 055 is provided with a second mounting through hole, the machine body 100 includes a fixing base 110 and a mounting housing 130, the fixing base 110 is provided with a learning pile fixing hole 111 matched with the second mounting through hole, and the bolt passes through the second mounting through hole and the learning pile fixing hole 111 to fix the question giving device 030.
Specifically, the installation ground mat 050 is used for setting up the one side of question equipment 030 and interactive response study stake 010 and is the installation face, and the installation face is provided with the slipmat. Because the participant need walk on installation ground mat 050, set up the probability that the slipmat can effectively reduce the participant and slip.
In this embodiment, installation ground mat 050 is the circular pad, and first installed part sets up the one side at installation ground mat 050 eccentrically, and the edge that is close to first installed part on the installation ground mat 050 is installation side 051, and seven interactive response study stake 010 scattering type distribute on installation ground mat 050 one side that first installed part is kept away from installation side 051. Specifically, the arc edge equipartition of one side of installation side 051 is kept away from to first installed part on installation ground mat 050 sets up six interactive response study stake 010, and another interactive response study stake 010 sets up near the centre of a circle of circular pad for interval between arbitrary two adjacent interactive response study stake 010 is roughly the same, makes things convenient for the participant to run on installation ground mat 050.
In this embodiment, the mobile phone further includes a bracelet for cooperating with the body 100, where the bracelet includes a single chip, a second communication module and a second capacitance sensing module; the second communication module and the second capacitance sensing module are electrically connected with the single chip microcomputer.
The machine body 100 is further provided with a first communication module, and the first communication module and the second communication module can be in communication connection. So that when a single person uses the interactive sensing learning pile 010, the cooperation of the bracelet is not needed, and the machine body 100 and the host formed by the elements installed on the machine body 100 can be directly used. And when many people used interactive response study stake 010, then bracelet was assigned to everyone, and after on linking the host computer through the bracelet, interactive cooperation was carried out between each bracelet.
The body 100 further includes a mounting case 130; the installation shell 130 is fixedly arranged in the middle of the fixed base 110, an access hole 131 is formed in one end, close to the fixed bottom, of the installation shell 130, and a covering piece is detachably arranged on the access hole 131. The access hole 131 can facilitate later maintenance and repair.
The body 100 is further provided with a sound amplification case 150. A speaker is provided in the body 100; the loud speaker housing 150 is detachably installed at both sides of the installation case 130 by the engagement of the slide bar of the slide groove or the engagement of the bolt, and a sound transmission hole 151 is installed at a position corresponding to the speaker on the loud speaker housing 150. The sound transmission hole 151 can enlarge the sound amplification effect of the speaker, and the sound amplification housing 150 is provided with an arc-shaped surface to improve the overall appearance of the body 100.
The multi-colored lights arranged on the surface of the body 100 and the speakers arranged in the body 100 can interact with each other corresponding to the slapping of the user, thereby improving the interest and the appreciation.
The learning mode of the interactive answering device 001 provided by the invention is divided into a single-person mode and a multi-person mode.
Single person mode: a code scanning and learning mode is selected, and the interactive sensing learning pile 010 extracts user information; the question display screen 033 displays the question, and then sends different answers to the option display screen 200 of the corresponding interactive induction learning peg 010 to be displayed, taps the top of the body 100 corresponding to the option to select the answer, and taps the top of the body 100 for confirmation to confirm the answer (the interactive induction learning peg 010 for confirmation displays the correct answer in case of an error, and displays the information of the relevant person in case of a right answer).
Multi-person mode: sweep the code and select the study mode, interactive response study stake 010 draws user information, sends the bracelet, and user information is bound to the bracelet. Getting and wearing a bracelet, and slapping the top of any body 100 to begin answering; or inviting friends or waiting for other people to scan codes to join; newly join personnel, interactive response study stake 010 draws user information, sends the bracelet, and user information is bound to the bracelet. The bracelet is picked up and worn, after people join, the first person who joins the bracelet slaps the top of any body 100 to start answering, the question display screen 033 of the question setting equipment 030 displays the question, then different answers are sent to the option display screen 200 of the corresponding interactive induction learning pile 010 to be displayed, the top of the body 100 which slaps the corresponding option is selected, the answer is correctly selected, and the interactive induction learning pile 010 for confirmation can display the information of the person related to answering; the interactive sensing learning stub 010 for validation will display the correct answer with a wrong selection.
The interactive answer equipment 001 that this embodiment provided, the system constitutes completely, abundant human-computer interaction element, and receives the environmental impact less, is applicable to various environment daytime or night, easy to carry out and healthy environmental protection, and ornamental and interactive respond well, also can reach good propaganda effect simultaneously.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A connection communication mode based on MQTT protocol is characterized in that the connection communication mode is used for communication among clients through a server, a CPU of each client has a unique device identifier, and the connection communication mode comprises the following steps:
the software of the client extracts the unique device identifier of the client;
encoding the unique device identifier to form a character string A;
initializing the client, initializing an MQTT CONNECT control message, and writing the character string A into a device identifier field of the MQTT CONNECT control message;
the client sends the MQTT CONNECT control message containing the character string A to the server;
the client is initialized again and keeps in communication connection with the server;
and all the clients connected with the server use MQTT channels for communication.
2. The MQTT protocol-based connection communication method according to claim 1, wherein in the step of extracting the unique device identifier of the client software:
the software of the client extracts the unique device identifier in its own CPU corresponding register.
3. The MQTT protocol-based connection communication method according to claim 1, wherein in the step of encoding the unique device identifier into a string a:
the unique device identifier is encoded using BASE64 encoding to form string a.
4. An interactive answering device, which communicates by using the MQTT protocol-based connection communication method according to any one of claims 1 to 3, and comprises a question making device serving as the server and a plurality of interactive induction learning stakes serving as the clients;
the question setting device comprises a question display screen for displaying questions;
the interactive induction learning pile comprises a machine body;
the surface of the machine body is provided with an option display screen and a first capacitance induction module;
and a CPU and an RFID identity recognition module are installed in the machine body.
5. An interactive answering apparatus according to claim 4, further comprising a mounting floor mat;
the installation ground is fixed on the ground mat and is provided with a first installation part for installing the question setting equipment and a plurality of second installation parts for installing the interactive induction learning pile.
6. The interactive answering device according to claim 5, wherein the first mounting member is a first mounting plate embedded in the mounting floor mat, a first mounting through hole is formed in the first mounting plate, the answering device comprises a host base, and a host fixing hole matched with the first mounting through hole is formed in the host base.
7. The interactive answering device according to claim 6, wherein the second mounting member is a second mounting plate embedded in the mounting ground mat, a second mounting through hole is formed in the second mounting plate, the machine body comprises a fixing base, and a learning pile fixing hole matched with the second mounting through hole is formed in the fixing base.
8. The interactive answering device according to claim 5, wherein the mounting mat is a circular mat, the first mounting member is eccentrically disposed on one side of the mounting mat, an edge of the mounting mat near the first mounting member is a mounting side, and a plurality of the interactive learning piles are dispersedly distributed on the mounting mat on a side of the first mounting member away from the mounting side.
9. The interactive answering device according to claim 4, wherein one of the interactive inductive learning peg forms a confirmation peg for confirming a selection, and the other interactive inductive learning peg forms a selection peg for selecting an option.
10. The interactive answering device according to claim 4, further comprising a bracelet, wherein the bracelet comprises a single chip microcomputer, a second communication module and a second capacitance sensing module;
a first communication module is also arranged in the machine body;
the first communication module and the second communication module can be in communication connection.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113760577A (en) * | 2021-08-04 | 2021-12-07 | 广东能龙教育股份有限公司 | Dynamic connection answering device, processing method, control device and storage medium |
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| CN109474916A (en) * | 2018-11-19 | 2019-03-15 | 海信集团有限公司 | A kind of device authentication method, apparatus and machine readable media |
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| CN113760577A (en) * | 2021-08-04 | 2021-12-07 | 广东能龙教育股份有限公司 | Dynamic connection answering device, processing method, control device and storage medium |
| CN113760577B (en) * | 2021-08-04 | 2024-04-19 | 广东能龙教育股份有限公司 | Dynamic connection answering device, processing method, control device and storage medium |
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