A smart blackboard control system and method

Abstract

The present invention provides a smart blackboard control system and method, including: an instruction analysis module, used to collect control instructions issued by a user, and determine the instruction display state of the smart blackboard according to the control instructions; an instruction response module, used to establish a display adjustment mode according to the current display state of the smart blackboard in combination with the instruction display state; an adjustment execution module, used to adjust the regional display state corresponding to each display area of ​​the smart blackboard according to the display adjustment mode; an adaptive adjustment module, used to adjust the display brightness of the smart blackboard according to the external environment information of the smart blackboard and the writing information of the user, thereby simplifying the control mode of the smart blackboard, and in actual use, it can also perform self-adjustment according to the external environment to achieve the effect of intelligent eye protection.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent electronic devices, and in particular to a smart blackboard control system and method. Background Art

[0002] Blackboards are widely used in the office and teaching fields. They are an indispensable teaching tool. Blackboards are a flat surface that can be repeatedly written with chalk. The surface is hard and is mostly used for teaching. Blackboards are generally made of wood or frosted glass, and can be written on with chalk or other specific writing materials. Although smart blackboards have entered the market, the general control method of smart blackboards is complicated and requires special training and learning. Therefore, most of the current multimedia teaching systems use projection design, which not only has a high installation cost and is more troublesome to install, but also requires improvements to the projection part of the blackboard, with more lines and inconvenient use.

[0003] Therefore, the present invention provides a smart blackboard control system and method. Summary of the invention

[0004] The present invention provides a smart blackboard control system and method, which simplifies the control method of the smart blackboard and can also adjust itself according to the external environment during actual use to achieve an intelligent eye protection effect.

[0005] The present invention provides a smart blackboard control system, comprising:

[0006] The instruction analysis module is used to collect the control instructions issued by the user and determine the instruction display state of the smart blackboard according to the control instructions;

[0007] The command response module is used to establish a display adjustment mode according to the current display state of the smart blackboard and in combination with the command display state;

[0008] An adjustment execution module, used for adjusting the regional display state corresponding to each display area of ​​the smart blackboard according to the display adjustment mode;

[0009] The adaptive adjustment module is used to adjust the display brightness of the smart blackboard according to the external environment information of the smart blackboard and the writing information of the user.

[0010] In one practicable manner,

[0011] Also includes:

[0012] The instruction preset module is used to establish corresponding legal control instructions according to the control mode set by the user and the target display state corresponding to each control mode, and classify and store different legal control instructions corresponding to each user.

[0013] In one practicable manner,

[0014] Also includes:

[0015] An identity verification module, used to collect identity verification information of a first-time user of the smart blackboard within a preset time period;

[0016] When the identity verification information of the first-time user is legitimate, retrieving all legitimate control instructions corresponding to the first-time user;

[0017] On the contrary, it is determined that the first-time user is an illegal user, and the smart blackboard is controlled to stop the current response.

[0018] In one practicable manner,

[0019] The instruction analysis module comprises:

[0020] An instruction analysis unit, used to obtain the user identity of the user, retrieve all legal control instructions corresponding to the user according to the user identity, and establish a valid instruction set for the user in combination with preset basic instructions;

[0021] a purpose analysis unit, configured to collect control instructions issued by the user, search for the control instructions in the valid instruction set, and determine the control purpose of the user according to the search result;

[0022] A state analysis unit is used to determine the instruction display state corresponding to the control instruction based on the control purpose and the basic parameters of the smart blackboard.

[0023] In one practicable manner,

[0024] The target analysis unit comprises:

[0025] A first analysis subunit is used to collect the control instructions issued by the user and determine the instruction type corresponding to the control instructions, extract the first candidate instructions of the same instruction type from the valid instruction set, and respectively obtain the first key information corresponding to each of the first candidate instructions;

[0026] a second analysis subunit, configured to obtain a matching degree between the control instruction and each of the first key information, extract a second candidate instruction having a matching degree higher than a preset matching degree threshold, and extract a first control purpose corresponding to the second candidate instruction having the highest matching degree as the control purpose of the user;

[0027] a third analysis subunit, configured to, when all matching degrees between the control instruction and each of the first key information are less than the preset matching degree threshold, parse the control instruction to obtain the second key information of the control instruction, retrieve the corresponding instruction information library according to the instruction type, combine and process the second key information using the instruction information library to obtain a plurality of third key information, perform semantic analysis on each of the third key information, and retrieve semantically legal fourth key information according to the analysis result;

[0028] The fourth analysis sub-unit is used to input each of the fourth key information into the valid instruction set for information matching, obtain corresponding matching results, obtain several third candidate instructions contained in the matching results, count the number of matches corresponding to each of the third candidate instructions, and extract the second control purpose corresponding to the fourth candidate instruction with the largest number of matches as the control purpose of the user.

[0029] In one practicable manner,

[0030] The instruction response module includes:

[0031] A state analysis unit, used to collect the current display state of the smart blackboard, retrieve the usage rules corresponding to the current display state, establish the responsive actions of the smart blackboard at the current moment according to the usage rules, and establish the target response action of the smart blackboard according to the instruction display state;

[0032] An action analysis unit, used to respectively obtain an action start point and an action end point corresponding to each of the responsive actions, and obtain a target action start point and a target action end point of the target responsive action;

[0033] An action arrangement unit, configured to record a responsive action whose action endpoint is consistent with the target action endpoint as a first action, and obtain a responsive action whose action endpoint is consistent with the action starting point of the first action as a second action;

[0034] The scheme generating unit is used for cyclically acquiring a plurality of the responsive actions until the action starting point of the responsive action is consistent with the current display state, generating a responsive action chain, and establishing a display adjustment mode according to the responsive action chain.

[0035] In one practicable manner,

[0036] The adjustment execution module includes:

[0037] A regional analysis unit, used for establishing a regional adjustment mode corresponding to each display area of ​​the smart blackboard according to the display adjustment mode;

[0038] A mode marking unit, used to mark each of the area adjustment modes on the corresponding display area, and obtain the mode differences between the area adjustment modes corresponding to adjacent display areas;

[0039] A mode compensation unit, used to establish an adjustment compensation mode for the corresponding display area according to the different points of the mode, and combine the adjustment compensation mode with the display adjustment mode to establish a feasible display adjustment mode of the smart blackboard;

[0040] An adjustment execution unit is used to adjust the smart blackboard to the instruction display state using the feasible display adjustment method.

[0041] In one practicable manner,

[0042] The adaptive adjustment module comprises:

[0043] The first adjustment unit is used to collect the external lighting information corresponding to each display area in the smart blackboard to establish the external environment information of the smart blackboard, and to collect the writing area information corresponding to each display area on the smart blackboard to establish the writing information of the user;

[0044] The second adjustment unit is used to obtain the current display brightness corresponding to each display area of ​​the smart blackboard, establish a display state model of the smart blackboard in combination with the external environment information and the writing information, and obtain visual information corresponding to each preset learning position according to the display state model;

[0045] A third adjustment unit is used to determine whether each of the visual information meets the preset visual standard, if not, extract the corresponding target visual information and the target preset learning position corresponding to the target visual information, and project the target preset learning position into the display state model to establish the environment display state model;

[0046] The fourth adjustment unit is used to parse the target visual information, obtain the display area to be adjusted corresponding to the target preset learning position, adjust the sub-model area corresponding to the display area to be adjusted in the environmental display state model until the target visual information meets the preset visual standard, obtain the model display brightness corresponding to the sub-model area, and adjust the current display brightness corresponding to the display area to be adjusted based on the model display brightness.

[0047] The present invention provides a smart blackboard control method, comprising:

[0048] Step 1: Collect the control instructions issued by the user, and determine the instruction display state of the smart blackboard according to the control instructions;

[0049] Step 2: Establish a display adjustment mode according to the current display state of the smart blackboard and the command display state;

[0050] Step 3: adjusting the regional display state corresponding to each display area of ​​the smart blackboard according to the display adjustment method;

[0051] Step 4: Adjust the display brightness of the smart blackboard according to the external environment information of the smart blackboard and the writing information of the user.

[0052] In one practicable manner,

[0053] The step 1 comprises:

[0054] Step 11: Obtain the user identity of the user, retrieve all legal control instructions corresponding to the user according to the user identity, and establish a valid instruction set for the user in combination with preset basic instructions;

[0055] Step 12: Collect the control instructions issued by the user, search for the control instructions in the valid instruction set, and determine the control purpose of the user according to the search result;

[0056] Step 13: Based on the control purpose and the basic parameters of the smart blackboard, determine the instruction display state corresponding to the control instruction.

[0057] The beneficial effects that can be achieved by the present invention are: in order to expand the applicability of the smart blackboard and simplify the control steps to facilitate more people to use it, the control instructions issued by the user are first collected during use, and a display adjustment method is established according to the control instructions. The display adjustment method is further used to adjust the display status of each display area of ​​the smart blackboard. At the same time, the display brightness of the smart blackboard is compensated and adjusted according to the external environment, thereby achieving the purpose of eye protection. In this way, the control method of the user is simplified, and the user can control the smart blackboard through voice control, body movements, and remote control operations, which improves the intelligence of the blackboard, facilitates the smart blackboard to enter the market faster, and can also avoid students' random operations and put an end to the arbitrary use of the blackboard. At the same time, it must be required to support locking the screen, buttons and remote controls, and a customizable unlocking password to facilitate the management of school classroom use.

[0058] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description, claims, and drawings.

[0059] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0061] Figure 1 A schematic diagram of the composition of a smart blackboard control system in an embodiment of the present invention;

[0062] Figure 2 The figure is a schematic diagram of the working process of a smart blackboard control method in an embodiment of the present invention. DETAILED DESCRIPTION

[0063] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0064] Example 1

[0065] This embodiment provides a smart blackboard control system. Figure 1 As shown, including:

[0066] The instruction analysis module is used to collect the control instructions issued by the user and determine the instruction display state of the smart blackboard according to the control instructions;

[0067] The command response module is used to establish a display adjustment mode according to the current display state of the smart blackboard and in combination with the command display state;

[0068] An adjustment execution module, used for adjusting the regional display state corresponding to each display area of ​​the smart blackboard according to the display adjustment mode;

[0069] The adaptive adjustment module is used to adjust the display brightness of the smart blackboard according to the external environment information of the smart blackboard and the writing information of the user.

[0070] In this example, the user may be a teacher, lecturer, etc.;

[0071] In this example, the command display state indicates the display state achieved by the user controlling the smart blackboard through the command issued;

[0072] In this example, the current display state indicates the state displayed by the smart blackboard at the current moment;

[0073] In this example, the display adjustment mode indicates a mode of adjusting the current display state to the command display state;

[0074] In this example, the surface of the smart blackboard writing surface adopts micro-ceramic processing technology, and the factory surface is covered with a transparent protective film. The size of each writing area is 1270mm (height) * 1000mm (length) * 80mm (thickness). The pencil hardness of the blackboard surface is 8H without marks (Mohs), and the surface can absorb magnetic sheets. The surface is black, without cracks, flow marks, bubbles and other defects, delicate and smooth, smooth writing, clear handwriting, easy to wipe, and the glossiness of the writing blackboard surface: glossiness 6﹪, no obvious glare, soft color, fashionable and beautiful, students can watch normally from any angle, the visual effect is excellent, and the eyesight of teachers and students is effectively protected. The surface roughness of the writing blackboard is Ra1.3um, which has strong writability. It feels smooth with ordinary chalk, moderate friction, and the notes are even and the lines are obvious;

[0075] In this example, the anti-glare glass + self-developed nano-coating on the surface of the smart blackboard ensures a large viewing angle and effectively filters harmful light; the protective tempered glass is riot-proof, scratch-proof, and impact-resistant, and has a no-sharp-angle design, which provides meticulous safety for students;

[0076] Nano-composite coating technology on the surface of smart blackboard: harmful light sources are filtered; nano-state particles diffusely reflect objects at the light source; nano-state particles can both transmit light and be written on;

[0077] The surface of the smart blackboard uses nanotechnology to make the smooth surface of glass into microparticles with a surface of 300 to 400 nanometers, achieving the following states:

[0078] 1) Whiteboard pen writing function, chalk writing function

[0079] 2) High light filtering technology filters out 85% of light sources that are harmful to the eyes, making the picture softer.

[0080] 3) The surface anti-glare technology is used to prevent reflected images from being formed on the surface, which does not affect the visible image.

[0081] 4) The surface adopts writing-resistant technology, and writing with a fountain pen or chalk will not cause permanent damage to the blackboard surface.

[0082] 5) There is no reflection at any angle. Students can clearly see the contents on the blackboard in any corner of the classroom.

[0083] The smart blackboard adopts a special nano-processing technology, which is non-reflective, non-color cast, and has high hardness, which can relieve visual fatigue and protect eyesight;

[0084] Smart blackboard products support network data sharing function, Windows and Android dual systems are connected to the Internet at the same time to achieve sharing; support single, dual, quad-screen mobile terminal signal online display mode switching at the same time, support window reverse control, smart blackboard supports mobile terminal device wireless transmission function, wireless screen projection method can be used to instantly mirror the computer screen and mobile device content to the smart blackboard, saving the user's wiring investment cost and improving convenience, effectively improving teaching efficiency. Supports wireless screen projection teaching for multiple operating systems such as Android, IOS, and Windows;

[0085] Wireless smart screen projection, embedded 5G wireless interactive transmission channel, supports four-split screen scenarios, has strong anti-interference ability, high throughput and strong scalability.

[0086] The working principle and beneficial effects of the above technical solution: In order to expand the applicability of the smart blackboard and simplify the control steps to facilitate more people to use, the control instructions issued by the user are first collected during use, and the display adjustment method is established according to the control instructions. The display state of each display area of ​​the smart blackboard is further adjusted by the display adjustment method. At the same time, the display brightness of the smart blackboard is compensated and adjusted according to the external environment, thereby achieving the purpose of eye protection. This simplifies the user's control method. The user can control the smart blackboard through voice control, body movements, and remote control, which improves the intelligence of the blackboard, facilitates the smart blackboard to enter the market faster, and can also avoid students' random operations and put an end to the arbitrary use of the blackboard. At the same time, it must be required to support locking the screen, buttons and remote control, and can customize the unlock password to facilitate the management of school classroom use.

[0087] Example 2

[0088] Based on Example 1, the smart blackboard control system further includes:

[0089] The instruction preset module is used to establish corresponding legal control instructions according to the control mode set by the user and the target display state corresponding to each control mode, and classify and store different legal control instructions corresponding to each user.

[0090] In this example, the legal control instruction means an instruction that has been stored;

[0091] In this example, the control mode and the target display state correspond one to one;

[0092] In this example, the control methods may include voice control, body movements, and remote control operation.

[0093] The working principle and beneficial effects of the above technical solution: In order to facilitate user management, the user sets the control mode and target display status in advance, which is convenient for the user to set corresponding instructions according to his own habits and operations, thereby improving the intelligence of the blackboard.

[0094] Example 3

[0095] Based on Example 2, the smart blackboard control system further includes:

[0096] An identity verification module, used to collect identity verification information of a first-time user of the smart blackboard within a preset time period;

[0097] When the identity verification information of the first-time user is legitimate, retrieving all legitimate control instructions corresponding to the first-time user;

[0098] On the contrary, it is determined that the first-time user is an illegal user, and the smart blackboard is controlled to stop the current response.

[0099] In this example, the preset time period is 50 minutes, and the user can set the preset time period according to actual needs.

[0100] The working principle and beneficial effects of the above technical solution: In order to avoid students' random operations and put an end to the arbitrary use of the blackboard, it can support locking the screen, buttons and remote control, and can customize the unlocking password. Identity authentication is required when using the smart blackboard for the first time within the specified time, which facilitates the management of school classroom use.

[0101] Example 4

[0102] On the basis of Example 1, the intelligent blackboard control system, the instruction analysis module, includes:

[0103] An instruction analysis unit, used to obtain the user identity of the user, retrieve all legal control instructions corresponding to the user according to the user identity, and establish a valid instruction set for the user in combination with preset basic instructions;

[0104] a purpose analysis unit, configured to collect control instructions issued by the user, search for the control instructions in the valid instruction set, and determine the control purpose of the user according to the search result;

[0105] A state analysis unit is used to determine the instruction display state corresponding to the control instruction based on the control purpose and the basic parameters of the smart blackboard.

[0106] The working principle and beneficial effects of the above technical solution are as follows: in order to analyze the user's instructions, the corresponding valid instruction set is retrieved according to the user's identity, and then the control instructions are searched in the valid instruction set to further determine the user's control purpose, so as to perform corresponding control.

[0107] Example 5

[0108] On the basis of Example 4, the intelligent blackboard control system, the purpose analysis unit, includes:

[0109] A first analysis subunit is used to collect the control instructions issued by the user and determine the instruction type corresponding to the control instructions, extract the first candidate instructions of the same instruction type from the valid instruction set, and respectively obtain the first key information corresponding to each of the first candidate instructions;

[0110] a second analysis subunit, configured to obtain a matching degree between the control instruction and each of the first key information, extract a second candidate instruction having a matching degree higher than a preset matching degree threshold, and extract a first control purpose corresponding to the second candidate instruction having the highest matching degree as the control purpose of the user;

[0111] a third analysis subunit, configured to, when all matching degrees between the control instruction and each of the first key information are less than the preset matching degree threshold, parse the control instruction to obtain the second key information of the control instruction, retrieve the corresponding instruction information library according to the instruction type, combine and process the second key information using the instruction information library to obtain a plurality of third key information, perform semantic analysis on each of the third key information, and retrieve semantically legal fourth key information according to the analysis result;

[0112] The fourth analysis sub-unit is used to input each of the fourth key information into the valid instruction set for information matching, obtain corresponding matching results, obtain several third candidate instructions contained in the matching results, count the number of matches corresponding to each of the third candidate instructions, and extract the second control purpose corresponding to the fourth candidate instruction with the largest number of matches as the control purpose of the user.

[0113] In this example, the instruction types include: voice type, body control type, and remote control type;

[0114] In this example, the first instruction to be selected represents a valid instruction that is consistent with the instruction type of the control instruction;

[0115] In this example, the first key information represents the key information of the first instruction to be selected;

[0116] In this example, the preset matching threshold is 85%;

[0117] In this example, the second instruction to be selected represents the first instruction to be selected whose matching degree is higher than the preset matching degree threshold;

[0118] In this example, the first control purpose represents the control purpose corresponding to the second candidate instruction with the highest matching degree;

[0119] In this example, the second key information represents the key information of the control instruction;

[0120] In this example, the instruction information library represents a storage library storing corresponding types of control information, including: a voice information library, a body movement information library, and a remote control information library;

[0121] In this example, the third key information represents information generated by combining the second key information and can be used to describe the second key information;

[0122] In this example, the combination processing represents the result of combining the second key information with the information in the instruction information library. The purpose of the combination is: due to the matching and identification of the second key information, the second key information is fuzzified to obtain multiple fuzzy key information, thereby expanding the analysis scope of the control instruction;

[0123] In this example, semantic analysis refers to the process of analyzing the legitimacy of the third key information by semantic means;

[0124] In this example, the fourth key information represents the semantically legal third key information;

[0125] In this example, the third instruction to be selected represents a valid instruction found in the valid instruction set and matching the fourth key information.

[0126] The working principle and beneficial effects of the above technical solution: In order to quickly respond to the user after the user issues an instruction and ensure the accuracy of the response, the corresponding selected instruction is first retrieved from the valid instruction set according to the user's control instruction type, and then the user's control purpose is determined by using the matching degree between the key information of the selected instruction and the control instruction. If the control purpose cannot be determined by direct matching, the control instruction is parsed to obtain its corresponding key information, and then the corresponding instruction information library is retrieved in combination with the instruction type corresponding to the control instruction. The information in the instruction information library is combined with the key information to implement fuzzy processing and obtain several processed key information. These key information are then matched in the valid instruction set, and the user's control purpose is determined by counting the number of times each selected instruction in the valid instruction set is matched. In this way, a quick response can be made when the user uses the smart blackboard, reducing the response time and effectively improving the user's experience.

[0127] Example 6

[0128] On the basis of Example 1, the intelligent blackboard control system, the instruction response module, includes:

[0129] A state analysis unit, used to collect the current display state of the smart blackboard, retrieve the usage rules corresponding to the current display state, establish the responsive actions of the smart blackboard at the current moment according to the usage rules, and establish the target response action of the smart blackboard according to the instruction display state;

[0130] An action analysis unit, used to respectively obtain an action start point and an action end point corresponding to each of the responsive actions, and obtain a target action start point and a target action end point of the target responsive action;

[0131] An action arrangement unit, configured to record a responsive action whose action endpoint is consistent with the target action endpoint as a first action, and obtain a responsive action whose action endpoint is consistent with the action starting point of the first action as a second action;

[0132] The scheme generating unit is used for cyclically acquiring a plurality of the responsive actions until the action starting point of the responsive action is consistent with the current display state, generating a responsive action chain, and establishing a display adjustment mode according to the responsive action chain.

[0133] In this example, the usage rules represent the operations that can be performed and the operations that cannot be performed on the smart blackboard in the current display state;

[0134] In this example, the responsive action represents the operation that can be performed by the smart blackboard in the current display state;

[0135] In this example, a respondable action corresponds to an action start point and an action end point;

[0136] In this example, the target response action corresponds to a target action start point and a target action end point;

[0137] In this example, the response action chain represents an action chain obtained by connecting the action start points and action end points of different responsive actions.

[0138] The working principle and beneficial effects of the above technical solution: In order to further ensure the working safety of the smart blackboard and improve the intelligence of the smart blackboard, when the user issues a control instruction, the responsive actions in the current state are determined according to the usage rules corresponding to the current display state of the smart blackboard, and then a response action chain connecting the current display state and the instruction display state is established according to the action starting points and action end points of different responsive actions combined with the target action starting point and target action end point of the target response action, thereby establishing a display adjustment method, which not only ensures the safety of the smart blackboard, but also provides timely response.

[0139] Example 7

[0140] On the basis of Example 1, the intelligent blackboard control system, the adjustment execution module, includes:

[0141] A regional analysis unit, used for establishing a regional adjustment mode corresponding to each display area of ​​the smart blackboard according to the display adjustment mode;

[0142] A mode marking unit, used to mark each of the area adjustment modes on the corresponding display area, and obtain the mode differences between the area adjustment modes corresponding to adjacent display areas;

[0143] A mode compensation unit, used to establish an adjustment compensation mode for the corresponding display area according to the different points of the mode, and combine the adjustment compensation mode with the display adjustment mode to establish a feasible display adjustment mode of the smart blackboard;

[0144] An adjustment execution unit is used to adjust the smart blackboard to the instruction display state using the feasible display adjustment method.

[0145] The working principle and beneficial effects of the above technical solution: In order to respond to the user's display adjustment and reduce the impact between the display areas, the regional adjustment method of each display area is first established according to the display adjustment method, and then marked on the corresponding display area respectively, and the compensation adjustment method is established by analyzing the differences between the regional adjustment methods of adjacent display areas, so that the compensation adjustment method and the display adjustment method are used together for adjustment, which effectively improves the effectiveness of the adjustment and brings a better experience to the user.

[0146] Example 8

[0147] On the basis of Example 1, the intelligent blackboard control system, the adaptive adjustment module, includes:

[0148] The first adjustment unit is used to collect the external lighting information corresponding to each display area in the smart blackboard to establish the external environment information of the smart blackboard, and to collect the writing area information corresponding to each display area on the smart blackboard to establish the writing information of the user;

[0149] The second adjustment unit is used to obtain the current display brightness corresponding to each display area of ​​the smart blackboard, establish a display state model of the smart blackboard in combination with the external environment information and the writing information, and obtain visual information corresponding to each preset learning position according to the display state model;

[0150] A third adjustment unit is used to determine whether each of the visual information meets the preset visual standard, if not, extract the corresponding target visual information and the target preset learning position corresponding to the target visual information, and project the target preset learning position into the display state model to establish the environment display state model;

[0151] The fourth adjustment unit is used to parse the target visual information, obtain the display area to be adjusted corresponding to the target preset learning position, adjust the sub-model area corresponding to the display area to be adjusted in the environmental display state model until the target visual information meets the preset visual standard, obtain the model display brightness corresponding to the sub-model area, and adjust the current display brightness corresponding to the display area to be adjusted based on the model display brightness.

[0152] In this example, the preset learning positions represent multiple positions that are easily affected by external lighting and are determined by simulating a classroom;

[0153] In this example, the preset visual standard means no reflection and no color cast;

[0154] In this example, one display area to be adjusted corresponds to one sub-model area.

[0155] The working principle and beneficial effects of the above technical solution: In order to enable every learner to clearly see the contents on the smart blackboard, it is necessary to effectively avoid interference from the external environment. First, the visual conditions at each position in the environment are analyzed based on the external environmental information of the smart blackboard and the user's writing information combined with its corresponding current display brightness. The brightness of each display area is further simulated and adjusted through a model to determine the brightness that each display area should reach, thereby effectively avoiding reflections, alleviating the vision of learners and users, and protecting eyesight.

[0156] Example 9

[0157] This embodiment provides a smart blackboard control method, such as Figure 2 As shown, including:

[0158] Step 1: Collect the control instructions issued by the user, and determine the instruction display state of the smart blackboard according to the control instructions;

[0159] Step 2: Establish a display adjustment mode according to the current display state of the smart blackboard and the command display state;

[0160] Step 3: adjusting the regional display state corresponding to each display area of ​​the smart blackboard according to the display adjustment method;

[0161] Step 4: Adjust the display brightness of the smart blackboard according to the external environment information of the smart blackboard and the writing information of the user.

[0162] In this example, the user may be a teacher, lecturer, etc.;

[0163] In this example, the command display state indicates the display state achieved by the user controlling the smart blackboard through the command issued;

[0164] In this example, the current display state indicates the state displayed by the smart blackboard at the current moment;

[0165] In this example, the display adjustment mode indicates a mode of adjusting the current display state to the command display state;

[0166] In this example, the surface of the smart blackboard writing surface adopts micro-ceramic processing technology, and the factory surface is covered with a transparent protective film. The size of each writing area is 1270mm (height) * 1000mm (length) * 80mm (thickness). The pencil hardness of the blackboard surface is 8H without marks (Mohs), and the surface can absorb magnetic sheets. The surface is black, without cracks, flow marks, bubbles and other defects, delicate and smooth, smooth writing, clear handwriting, easy to wipe, and the glossiness of the writing blackboard surface: glossiness 6﹪, no obvious glare, soft color, fashionable and beautiful, students can watch normally from any angle, the visual effect is excellent, and the eyesight of teachers and students is effectively protected. The surface roughness of the writing blackboard is Ra1.3um, which has strong writability. It feels smooth with ordinary chalk, moderate friction, and the notes are even and the lines are obvious;

[0167] In this example, the anti-glare glass + self-developed nano-coating on the surface of the smart blackboard ensures a large viewing angle and effectively filters harmful light; the protective tempered glass is riot-proof, scratch-proof, and impact-resistant, and has a no-sharp-angle design, which provides meticulous safety for students;

[0168] Nano-composite coating technology on the surface of smart blackboard: harmful light sources are filtered; nano-state particles diffusely reflect objects at the light source; nano-state particles can both transmit light and be written on;

[0169] The surface of the smart blackboard uses nanotechnology to make the smooth surface of glass into microparticles with a surface of 300 to 400 nanometers, achieving the following states:

[0170] 1) Whiteboard pen writing function, chalk writing function

[0171] 2) High light filtering technology filters out 85% of light sources that are harmful to the eyes, making the picture softer.

[0172] 3) The surface anti-glare technology is used to prevent reflected images from being formed on the surface, which does not affect the visible image.

[0173] 4) The surface adopts writing-resistant technology, and writing with a fountain pen or chalk will not cause permanent damage to the blackboard surface.

[0174] 5) There is no reflection at any angle. Students can clearly see the contents on the blackboard in any corner of the classroom.

[0175] The smart blackboard adopts a special nano-processing technology, which is non-reflective, non-color cast, and has high hardness, which can relieve visual fatigue and protect eyesight;

[0176] Smart blackboard products support network data sharing function, Windows and Android dual systems are connected to the Internet at the same time to achieve sharing; support single, dual, quad-screen mobile terminal signal online display mode switching at the same time, support window reverse control, smart blackboard supports mobile terminal device wireless transmission function, wireless screen projection method can be used to instantly mirror the computer screen and mobile device content to the smart blackboard, saving the user's wiring investment cost and improving convenience, effectively improving teaching efficiency. Supports wireless screen projection teaching for multiple operating systems such as Android, IOS, and Windows;

[0177] Wireless smart screen projection, embedded 5G wireless interactive transmission channel, supports four-split screen scenarios, has strong anti-interference ability, high throughput and strong scalability.

[0178] The working principle and beneficial effects of the above technical solution: In order to expand the applicability of the smart blackboard and simplify the control steps to facilitate more people to use, the control instructions issued by the user are first collected during use, and the display adjustment method is established according to the control instructions. The display state of each display area of ​​the smart blackboard is further adjusted by the display adjustment method. At the same time, the display brightness of the smart blackboard is compensated and adjusted according to the external environment, thereby achieving the purpose of eye protection. This simplifies the user's control method. The user can control the smart blackboard through voice control, body movements, and remote control, which improves the intelligence of the blackboard, facilitates the smart blackboard to enter the market faster, and can also avoid students' random operations and put an end to the arbitrary use of the blackboard. At the same time, it must be required to support locking the screen, buttons and remote control, and can customize the unlock password to facilitate the management of school classroom use.

[0179] Example 10

[0180] On the basis of Example 9, the smart blackboard control method, step 1, comprises:

[0181] Step 11: Obtain the user identity of the user, retrieve all legal control instructions corresponding to the user according to the user identity, and establish a valid instruction set for the user in combination with preset basic instructions;

[0182] Step 12: Collect the control instructions issued by the user, search for the control instructions in the valid instruction set, and determine the control purpose of the user according to the search result;

[0183] Step 13: Based on the control purpose and the basic parameters of the smart blackboard, determine the instruction display state corresponding to the control instruction.

[0184] The working principle and beneficial effects of the above technical solution are as follows: in order to analyze the user's instructions, the corresponding valid instruction set is retrieved according to the user's identity, and then the control instructions are searched in the valid instruction set to further determine the user's control purpose, so as to perform corresponding control.

[0185] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A smart blackboard control system, characterized in that: include: The instruction analysis module is used to collect the control instructions issued by the user and determine the instruction display state of the smart blackboard according to the control instructions; The command response module is used to establish a display adjustment mode according to the current display state of the smart blackboard and in combination with the command display state; An adjustment execution module, used for adjusting the regional display state corresponding to each display area of ​​the smart blackboard according to the display adjustment mode; An adaptive adjustment module, used to adjust the display brightness of the smart blackboard according to the external environment information of the smart blackboard and the writing information of the user; The instruction response module includes: A state analysis unit, used to collect the current display state of the smart blackboard, retrieve the usage rules corresponding to the current display state, establish the responsive actions of the smart blackboard at the current moment according to the usage rules, and establish the target response action of the smart blackboard according to the instruction display state; An action analysis unit, used to respectively obtain an action start point and an action end point corresponding to each of the responsive actions, and obtain a target action start point and a target action end point of the target responsive action; An action arrangement unit, configured to record a responsive action whose action endpoint is consistent with the target action endpoint as a first action, and obtain a responsive action whose action endpoint is consistent with the action starting point of the first action as a second action; A scheme generating unit, configured to cyclically obtain a plurality of the responsive actions until the action starting point of the responsive action is consistent with the current display state, generate a responsive action chain and establish a display adjustment mode according to the responsive action chain; The instruction analysis module includes a purpose analysis unit; The target analysis unit comprises: A first analysis subunit is used to collect the control instructions issued by the user and determine the instruction type corresponding to the control instructions, extract the first candidate instructions of the same instruction type from the valid instruction set, and respectively obtain the first key information corresponding to each of the first candidate instructions; a second analysis subunit, configured to obtain a matching degree between the control instruction and each of the first key information, extract a second candidate instruction having a matching degree higher than a preset matching degree threshold, and extract a first control purpose corresponding to the second candidate instruction having the highest matching degree as the control purpose of the user; a third analysis subunit, configured to, when all matching degrees between the control instruction and each of the first key information are less than the preset matching degree threshold, parse the control instruction to obtain the second key information of the control instruction, retrieve the corresponding instruction information library according to the instruction type, combine and process the second key information using the instruction information library to obtain a plurality of third key information, perform semantic analysis on each of the third key information, and retrieve semantically legal fourth key information according to the analysis result; a fourth analysis subunit, configured to input each of the fourth key information into the valid instruction set for information matching, obtain corresponding matching results, obtain a plurality of third candidate instructions contained in the matching results, count the number of matches corresponding to each of the third candidate instructions, and extract the second control purpose corresponding to the fourth candidate instruction with the largest number of matches as the control purpose of the user; The adaptive adjustment module comprises: The first adjustment unit is used to collect the external lighting information corresponding to each display area in the smart blackboard to establish the external environment information of the smart blackboard, and to collect the writing area information corresponding to each display area on the smart blackboard to establish the writing information of the user; The second adjustment unit is used to obtain the current display brightness corresponding to each display area of ​​the smart blackboard, establish a display state model of the smart blackboard in combination with the external environment information and the writing information, and obtain visual information corresponding to each preset learning position according to the display state model; A third adjustment unit is used to determine whether each of the visual information meets the preset visual standard, if not, extract the corresponding target visual information and the target preset learning position corresponding to the target visual information, and project the target preset learning position into the display state model to establish the environment display state model; The fourth adjustment unit is used to parse the target visual information, obtain the display area to be adjusted corresponding to the target preset learning position, adjust the sub-model area corresponding to the display area to be adjusted in the environmental display state model until the target visual information meets the preset visual standard, obtain the model display brightness corresponding to the sub-model area, and adjust the current display brightness corresponding to the display area to be adjusted based on the model display brightness.

2. A smart blackboard control system as claimed in claim 1, characterized in that: Also includes: The instruction preset module is used to establish corresponding legal control instructions according to the control mode set by the user and the target display state corresponding to each control mode, and classify and store different legal control instructions corresponding to each user.

3. A smart blackboard control system as claimed in claim 2, characterized in that: Also includes: An identity verification module, used to collect identity verification information of a first-time user of the smart blackboard within a preset time period; When the identity verification information of the first-time user is legal, all legal control instructions corresponding to the first-time user are retrieved; On the contrary, it is determined that the first-time user is an illegal user, and the smart blackboard is controlled to stop the current response.

4. A smart blackboard control system as claimed in claim 1, characterized in that: The instruction analysis module comprises: An instruction analysis unit, used to obtain the user identity of the user, retrieve all legal control instructions corresponding to the user according to the user identity, and establish a valid instruction set for the user in combination with preset basic instructions; a purpose analysis unit, configured to collect control instructions issued by the user, search for the control instructions in the valid instruction set, and determine the control purpose of the user according to the search result; A state analysis unit is used to determine the instruction display state corresponding to the control instruction based on the control purpose and the basic parameters of the smart blackboard.

5. A smart blackboard control system as claimed in claim 1, characterized in that: The adjustment execution module includes: A regional analysis unit, used for establishing a regional adjustment mode corresponding to each display area of ​​the smart blackboard according to the display adjustment mode; A mode marking unit, used to mark each of the area adjustment modes on the corresponding display area, and obtain the mode differences between the area adjustment modes corresponding to adjacent display areas; A mode compensation unit, used to establish an adjustment compensation mode for the corresponding display area according to the different points of the mode, and combine the adjustment compensation mode with the display adjustment mode to establish a feasible display adjustment mode of the smart blackboard; An adjustment execution unit is used to adjust the smart blackboard to the instruction display state using the feasible display adjustment method.

6. A smart blackboard control method, applied to the system according to any one of claims 1 to 5, characterized in that: include: Step 1: Collect the control instructions issued by the user, and determine the instruction display state of the smart blackboard according to the control instructions; Step 2: Establish a display adjustment mode according to the current display state of the smart blackboard and the command display state; Step 3: adjusting the regional display state corresponding to each display area of ​​the smart blackboard according to the display adjustment method; Step 4: adjusting the display brightness of the smart blackboard according to the external environment information of the smart blackboard and the writing information of the user; The step 2 comprises: Step 21: Collect the current display state of the smart blackboard, retrieve the usage rules corresponding to the current display state, establish the responsive actions of the smart blackboard at the current moment according to the usage rules, and establish the target response action of the smart blackboard according to the command display state; Step 22: respectively obtaining the action start point and action end point corresponding to each of the responsive actions, and obtaining the target action start point and target action end point of the target responsive action; Step 23: Recording a responsive action whose action endpoint is consistent with the target action endpoint as a first action, and recording a responsive action whose action endpoint is consistent with the action starting point of the first action as a second action; Step 24: cyclically acquiring a plurality of the responsive actions until the action starting point of the responsive action is consistent with the current display state, generating a responsive action chain, and establishing a display adjustment mode according to the responsive action chain; The step 1 comprises: step 12: collecting the control instructions issued by the user, searching the control instructions in the valid instruction set, and determining the control purpose of the user according to the search result; Specifically, including: Step 121: collecting the control instructions issued by the user and determining the instruction type corresponding to the control instructions, extracting the first candidate instructions of the same instruction type from the valid instruction set, and respectively obtaining the first key information corresponding to each of the first candidate instructions; Step 122: Obtain the matching degree between the control instruction and each of the first key information, extract the second candidate instruction with a matching degree higher than a preset matching degree threshold, and extract the first control purpose corresponding to the second candidate instruction with the highest matching degree as the control purpose of the user; Step 123: when all the matching degrees between the control instruction and each of the first key information are less than the preset matching degree threshold, the control instruction is parsed to obtain the second key information of the control instruction, the corresponding instruction information library is retrieved according to the instruction type, the second key information is combined and processed by using the instruction information library to obtain a plurality of third key information, semantic analysis is performed on each of the third key information, and semantically legal fourth key information is retrieved according to the analysis result; Step 124: input each of the fourth key information into the valid instruction set for information matching, obtain corresponding matching results, obtain a number of third candidate instructions contained in the matching results, count the number of matches corresponding to each of the third candidate instructions, and extract the second control purpose corresponding to the fourth candidate instruction with the largest number of matches as the control purpose of the user; The step 4 comprises: Step 41: Collecting external lighting information corresponding to each display area in the smart blackboard to establish external environment information of the smart blackboard, and collecting writing area information corresponding to each display area on the smart blackboard to establish writing information of the user; Step 42: obtaining the current display brightness corresponding to each display area of ​​the smart blackboard, establishing a display state model of the smart blackboard in combination with the external environment information and the writing information, and obtaining visual information corresponding to each preset learning position according to the display state model; Step 43: respectively determining whether each of the visual information meets the preset visual standard, and if not, extracting the corresponding target visual information and the target preset learning position corresponding to the target visual information, and projecting the target preset learning position into the display state model to establish the environment display state model; Step 44: parse the target visual information to obtain the display area to be adjusted corresponding to the target preset learning position, adjust the sub-model area corresponding to the display area to be adjusted in the environmental display state model until the target visual information meets the preset visual standard, obtain the model display brightness corresponding to the sub-model area, and adjust the current display brightness corresponding to the display area to be adjusted based on the model display brightness.

7. A smart blackboard control method as claimed in claim 6, characterized in that: The step 1 comprises: Step 11: Obtain the user identity of the user, retrieve all legal control instructions corresponding to the user according to the user identity, and establish a valid instruction set for the user in combination with preset basic instructions; Step 12: Collect the control instructions issued by the user, search for the control instructions in the valid instruction set, and determine the control purpose of the user according to the search result; Step 13: Based on the control purpose and the basic parameters of the smart blackboard, determine the instruction display state corresponding to the control instruction.

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