Display control device and method based on millimeter waves

Abstract

The invention relates to a display control device and method based on millimeter waves, the display control device comprises a display and an adjusting base, the adjusting base comprises a base, and the base is provided with a longitudinal support and a transverse moving unit; a lower bottom support is longitudinally arranged on the longitudinal bracket in a sliding manner, and a lifting unit is arranged on the longitudinal bracket; the lower bottom support is connected with an upper clamping jaw, and the distance between the lower bottom support and the upper clamping jaw is adjustable. A longitudinal telescopic center shaft is fixedly arranged on the longitudinal support, a millimeter wave module is embedded in the upper end of the outer side surface of the center shaft, and the signal emission direction of the millimeter wave module faces right ahead; the front side surface of the upper clamping jaw is provided with an open groove for avoiding a signal sending and receiving path of the millimeter wave module, and the front end of the open groove is provided with a positioning frame matched with the millimeter wave module. According to the invention, while basic adjustment of the height, angle and front-back position of the display is satisfied, fine identification and adjustment of the height, front-back position and deflection angle of the display can be completed by means of data of the millimeter wave module.

Description

Technical Field

[0001] The present invention relates to the technical field of display control, and more specifically, to a display control device and method based on millimeter waves. Background Art

[0002] Monitors are very common office supplies. However, we all know that the blue light of the monitor module is harmful to the eyes, especially when viewed for a long time with incorrect viewing postures and distances, which causes greater harm to the eyes. Currently, the monitoring of such postures and distances can be achieved through methods such as millimeter wave modules. However, in the prior art, the methods adopted are limited to only reminding (such as voice, light effects, etc.) after monitoring, and the actual effect that can be achieved is limited. There is a need for a display control device and method based on millimeter waves that can adaptively adjust. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a display control device based on millimeter waves and a display method based on millimeter waves in view of the above-mentioned defects of the prior art.

[0004] The technical solution adopted by the present invention to solve its technical problems is as follows:

[0005] Construct a display control device based on millimeter waves, including a monitor and an adjustment base. Among them, the adjustment base includes a base, a longitudinal bracket is arranged on the base, and a transverse movement unit for driving the longitudinal bracket to move back and forth; a lower base support is longitudinally slidably arranged on the longitudinal bracket, and a lifting unit for driving the lower base support to lift is arranged on the longitudinal bracket; an upper claw is connected to the lower base support, and the distance between the lower base support and the upper claw is adjustable. During application, the monitor is clamped up and down by the upper claw and the lower base support; a longitudinal telescopic central shaft is fixedly arranged on the longitudinal bracket, a millimeter wave module is embedded at the upper end of the outer surface of the central shaft, and the signal emission direction of the millimeter wave module faces directly forward; movable holes matching the central shaft are arranged on both the lower base support and the upper claw; a slot for avoiding the signal transmission and reception path of the millimeter wave module is arranged on the front side surface of the upper claw, and a positioning frame for cooperating with the millimeter wave module is arranged at the front end of the slot; the device further includes a deflection unit for driving the lower base support and the upper claw to deflect left and right around the central shaft; a control unit is arranged on the base, and the control unit is electrically connected to the monitor, the transverse movement unit, the lifting unit, the millimeter wave module, and the deflection unit. The control unit controls the operation of the transverse movement unit, the lifting unit, and the deflection unit according to the detection data of the millimeter wave module, and controls the monitor to perform display reminder.

[0006] The millimeter-wave-based display control device of the present invention, wherein the central axis includes a lower sleeve, an upper conduit extending into the lower sleeve, and a frustum located at the top end of the upper conduit. The millimeter-wave module is provided on the frustum. The inner hole of the lower sleeve and the cross-section of the upper conduit are both square. A tightening screw for adjusting and tightening the upper conduit is threadedly connected to the lower sleeve. The inner holes of the lower sleeve and the upper conduit are both wire passing holes for the millimeter-wave module.

[0007] The millimeter-wave-based display control device of the present invention, wherein the lifting unit includes a longitudinal first lead screw fixed on the longitudinal bracket and a first lead screw motor for driving the first lead screw. The movable end of the first lead screw is coaxially rotatably connected to a positioning fork. An activity hole for the lower sleeve to pass through is formed on the positioning fork. Both ends of the positioning fork are located at the bottom of the lower base and are fixedly connected to the lower base.

[0008] The millimeter-wave-based display control device of the present invention, wherein the deflection unit includes a base. A bearing seat for rotatably connecting the longitudinal bracket is provided on the base. The lower sleeve passes through the bearing seat and is fixedly connected to the base. The deflection unit further includes a deflection motor for driving the longitudinal bracket to rotate around the lower sleeve. A driving gear is provided at the movable end of the deflection motor. An extension sleeve is provided at the lower end of the longitudinal bracket. An arc-shaped rack meshing with the driving gear is provided on the inner wall of the extension sleeve. The transverse movement unit includes a second lead screw for driving the base to move back and forth and a second lead screw motor for driving the second lead screw. The base is slidably arranged back and forth on the base.

[0009] The millimeter-wave-based display control device of the present invention, wherein a Scaler module and a display module are provided on the display.

[0010] The Scaler module is used to receive the millimeter-wave module detection data sent by the control unit and perform display reminders on the display module according to the set program based on the millimeter-wave module detection data.

[0011] A millimeter-wave-based display method, applied to the millimeter-wave-based display control device as described above, wherein the method includes

[0012] The millimeter-wave module collects a human face head image with positioning frame data, identifies and obtains the height position information, the distance position information, and the left and right deflection information of the human face relative to the positioning frame, and respectively generates a display height modification parameter, a display front and back distance modification parameter, and a display left and right deflection parameter.

[0013] The above parameters are sent to the control unit, and the control unit controls the operation of the lifting unit, the lateral movement unit and the deflection unit to respectively adjust the height, the front and rear position and the deflection angle of the display, and sends the millimeter wave module detection data to the display for display reminders.

[0014] The millimeter wave-based display control method of the present invention, wherein the sending of the above parameters to the display for display reminder includes reminding the user of the distance between the user and the display, and the method includes:

[0015] The display's scaler module receives information about the distance and position of the face from the millimeter wave module;

[0016] Determine whether the face distance position is within the set distance range;

[0017] If yes, the set first color value and the specific distance value are displayed;

[0018] If it is less than the minimum value of the set distance range, the set second color value and the specific distance value are displayed, indicating that the current viewing distance is too close and triggering the timing module. If it is not restored to the set distance range within the first set time, the output signal of the Scaler module is turned off, making the display module black screen until it is restored to the set distance range.

[0019] If it is greater than the maximum value of the set distance range, the set third color value and the specific distance value will be displayed, indicating that the current viewing distance is too far and triggering the timing module. If it is not restored to the set distance range within the second set time, the output signal of the Scaler module will be turned off, making the display module black screen until it is restored to the set distance range. The black screen state is released. If it exceeds the third set time, the display will turn off the power.

[0020] The millimeter wave-based display control method of the present invention further comprises:

[0021] When the human body determines the appropriate distance, the distance range is set through the nodding or hand movements in the millimeter wave module detection data;

[0022] According to the set distance range value, the color setting and timing time setting are automatically generated according to the setting.

[0023] The millimeter wave-based display control method of the present invention, wherein the sending of the above parameters to the display for display reminder includes reminding the user of the distance between the user and the display, and the method includes:

[0024] The menu function of the Scaler module is controlled by the gestures and head movements recognized in the millimeter wave module detection data. Specifically, the following methods are used:

[0025] When the hand is clenched and then opened, it means calling OSD. When the palm is up or down, the menu moves up and down. Nod once to confirm, shake the head left or right to exit, move left to control the switching of options, control the screen to slide up and down and turn pages left and right;

[0026] Nod to enter the options, move your palm up and down to select a specific item, nod again to confirm, and move your palm left and right again to adjust the specific value;

[0027] Shake your head left or right once to exit the menu;

[0028] Rotate your palm counterclockwise or clockwise to adjust the volume and backlight.

[0029] The millimeter wave-based display control method of the present invention, wherein the sending of the above parameters to the display for display reminder includes reminding the user of the distance between the user and the display, and the method includes:

[0030] The deflection angle in the millimeter wave module detection data is used to determine whether the viewing posture is appropriate. Specifically, the following methods are used:

[0031] When the head deviates up, down, left, or right by no more than 10 degrees, the OSD turns green and displays the specific angles;

[0032] When the head deviates by 10-20 degrees, the OSD is displayed in yellow and displays the specific angles, indicating that the current viewing angle is deviated and triggering the timing module. If it does not return to the set angle range within the fourth set time, the output signal of the Scaler module is turned off, making the display module black until it returns to the set angle range.

[0033] When the head deviates by 20-30 degrees up, down, left, and right, the OSD turns red and displays the specific angles up, down, left, and right, indicating that the current viewing angle is seriously deviated and triggering the timing module. If it does not return to the set distance range within the fifth set time, the output signal of the Scaler module is turned off, causing the display module to go black until it returns to the set angle range. If it exceeds the sixth set time, the display is powered off.

[0034] The beneficial effects of the present invention are as follows: The millimeter-wave module collects a face portrait with positioning frame data, identifies and obtains the height position information, the distance position information, and the left-right deflection information of the face relative to the positioning frame, and respectively generates a display height modification parameter, a display front-back distance modification parameter, and a display left-right deflection parameter; the above parameters are sent to the control unit, and the control unit controls the lifting unit, the transverse movement unit, and the deflection unit to operate to respectively adjust the height, the front-back position, and the deflection angle of the display, and sends the millimeter-wave module detection data to the display for display reminder;

[0035] Innovatively, a millimeter-wave module is integrated on the existing display adjustment bracket by using a special structure. While satisfying the basic adjustment of the display height, angle, and front-back position, the angle association between the millimeter-wave module and the display is established through the positioning frame, and the distance association between the longitudinal bracket, the display, and the viewer is established relying on the millimeter-wave module. Relying on the above association relationship, the fine recognition and adjustment of the height, front-back position, and deflection angle of the display can be completed by means of the data of the millimeter-wave module. The degree of automation is high, and only a small amount of software modification to the display itself is required to cooperate with the millimeter-wave module to realize a series of functions such as distance, deflection angle, and screen-off when people leave. The function scalability is good and does not involve hardware improvement of the display screen. It can be applied after simple software adjustment and setting of the existing display, and has good applicability and is suitable for popularization. Description of the Drawings

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will further illustrate the present invention in conjunction with the drawings and embodiments. The drawings in the following description are only partial embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts:

[0037] Figure 1 is a structural cross-sectional view of a millimeter-wave-based display control device according to a preferred embodiment of the present invention;

[0038] Figure 2 is a schematic cross-sectional view of a claw on a millimeter-wave-based display control device according to a preferred embodiment of the present invention;

[0039] Figure 3 is a principle block diagram of a display of a millimeter-wave-based display control device according to a preferred embodiment of the present invention;

[0040] Figure 4 is a schematic diagram of a Scaler IC menu control area of a millimeter-wave-based display control device according to a preferred embodiment of the present invention;

[0041] Figure 5 is a flowchart of a millimeter-wave-based display control method according to a preferred embodiment of the present invention;

[0042] Figure 6 is the flowchart of the reminder of the display distance for the millimeter-wave-based display control method according to a preferred embodiment of the present invention;

[0043] Figure 7 is the schematic diagram of the comparison between the distance from the display and the color reminder for the millimeter-wave-based display control method according to a preferred embodiment of the present invention;

[0044] Figure 8 is the flowchart of the setting of the distance range for the millimeter-wave-based display control method according to a preferred embodiment of the present invention;

[0045] Figure 9 is the flowchart of the menu function for controlling the Scaler module by the millimeter-wave-based display control method according to a preferred embodiment of the present invention;

[0046] Figure 10 is the flowchart of determining whether the viewing posture is appropriate for the millimeter-wave-based display control method according to a preferred embodiment of the present invention;

[0047] Figure 11 is the schematic diagram of the OSD viewing angle for the millimeter-wave-based display control method according to a preferred embodiment of the present invention. Detailed implementation manners

[0048] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely below. Apparently, the described embodiments are some, rather than all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0049] The millimeter-wave-based display control device according to a preferred embodiment of the present invention, as Figure 1 shown, also refer to Figures 2 - 4, including a display 1 and an adjustment base. The adjustment base includes a base 20, on which a longitudinal bracket 21 and a transverse movement unit 22 for driving the longitudinal bracket 21 to move back and forth are provided; a lower base support 23 is longitudinally slidably arranged on the longitudinal bracket 21, and a lifting unit 24 for driving the lower base support 23 to lift is provided on the longitudinal bracket 21 (an avoidance groove for avoiding the lower base support 23 and the upper claw 25 is provided on the longitudinal bracket 21); an upper claw 25 is connected to the lower base support 23, and the distance between the lower base support 23 and the upper claw 25 is adjustable. During application, the display 1 is clamped up and down by the upper claw 25 and the lower base support 23; a longitudinal telescopic central shaft 26 is fixedly arranged on the longitudinal bracket 21, and a millimeter-wave module 3 is embedded at the upper end of the outer surface of the central shaft 26. The signal emission direction of the millimeter-wave module 3 is towards the front; both the lower base support 23 and the upper claw 25 are provided with movable holes matching the central shaft 26; a slot 250 for avoiding the signal transmission and reception path of the millimeter-wave module 3 is provided on the front side surface of the upper claw 25, and a positioning frame 251 matching the millimeter-wave module 3 is provided at the front end of the slot 250 (preferably, the position of the positioning frame 251 can be adjusted according to actual needs); the device further includes a deflection unit 27 for driving the lower base support 23 and the upper claw 25 to deflect left and right around the central shaft 26; a control unit 28 is provided on the base 20, and the control unit 28 is electrically connected to the display 1, the transverse movement unit 22, the lifting unit 24, the millimeter-wave module 3, and the deflection unit 27. The control unit 28 controls the operation of the transverse movement unit 22, the lifting unit 24, and the deflection unit 27 according to the detection data of the millimeter-wave module 3, and controls the display 1 to perform display reminders;

[0050] The millimeter-wave module 3 collects a human face image with data of the positioning frame 251 (the position and size of the positioning frame 251 can be adjusted according to needs. During recognition, the positioning frame is fixed to the upper claw 25 and can be used as the boundary of recognition. The position and angle of the human face relative to the boundary can be used to obtain the position and angle of the human face relative to the display 1), recognizes and obtains the height position information, the distance position information, and the left and right deflection information of the human face relative to the positioning frame 251, and respectively generates a display height modification parameter, a display front-back distance modification parameter, and a display left-right deflection parameter; the above parameters are sent to the control unit 28, and the control unit 28 controls the operation of the lifting unit 24, the transverse movement unit 22, and the deflection unit 27 to respectively adjust the height, the front-back position, and the deflection angle of the display 1, and sends the detection data of the millimeter-wave module to the display 1 for display reminders according to the settings;

[0051] The groundbreaking integration of the millimeter-wave module 3 on the existing display adjustment bracket using a special structure can satisfy the basic adjustment of the display's height, angle, and front-back position. Meanwhile, the positioning frame 251 is used to establish the angular relationship between the millimeter-wave module 3 and the display 1, and the millimeter-wave module 3 is relied on to establish the distance relationship between the longitudinal bracket 21, the display 1, and the viewer. Relying on the above-mentioned correlation relationships, the millimeter-wave module 3 can be used to finely identify and adjust the height, front-back position, and deflection angle of the display 1. It has a high degree of automation, and only requires minor software modifications to the display 1 itself to cooperate with the millimeter-wave module 3 to achieve a series of functions such as distance, deflection angle, and screen-off when people leave. It has good functional expandability and does not involve hardware improvements to the display screen 1. It can be applied after simple software adjustment settings on the existing display 1, has good applicability, and is suitable for popularization and promotion.

[0052] Preferably, the central axis 26 includes a lower sleeve 260, an upper conduit 261 extending into the lower sleeve 260, and a frustum 262 located at the top of the upper conduit 261. The millimeter-wave module 3 is arranged on the frustum 262. The inner hole of the lower sleeve 260 and the cross-section of the upper conduit 261 are both square to avoid torsion. A tightening screw for adjusting and tightening the upper conduit 261 is threadedly connected to the lower sleeve 260. The inner holes of the lower sleeve 260 and the upper conduit 261 are both used as wire passing holes for the millimeter-wave module 3. With this structure, when the tightening screw is loosened, the position of the upper conduit 261 can be adjusted up and down, and after the adjustment is in place, the tightening screw can be tightened. It is very convenient to adjust the distance between the lower base 23 and the upper claw 25. At the same time, the frustum 262 structure can play a positioning role, improve the reliability of the connection with the upper claw 25, and ensure the accuracy and stability when the upper claw 25 rotates relative to the central axis 26. Correspondingly, when using this structure, the movable hole on the lower base 23 can be set as a round hole matching the lower sleeve 260, and the movable hole on the upper claw 25 can be set as a T-shaped hole matching the frustum 262.

[0053] Preferably, the lifting unit 24 includes a longitudinal first lead screw 240 fixed on the longitudinal bracket 21 and a first lead screw motor 241 for driving the first lead screw 240. The movable end of the first lead screw 240 is coaxially rotatably connected to a positioning fork 242. The positioning fork 242 is formed with a movable hole for the lower sleeve 260 to pass through. Both ends of the positioning fork 242 are located at the bottom of the lower base 23 and are fixedly connected to the lower base 23. With this structure, the positioning fork 242 not only connects the lower base 23 but also cooperates with the lower sleeve 260 for positioning, improving the accuracy and stability during deflection adjustment, and at the same time making the structure more compact and improving space utilization.

[0054] Preferably, the deflection unit 27 includes a base 270. A bearing block 271 for rotatably connecting the longitudinal bracket 21 is arranged on the base 270. The lower sleeve 260 passes through the bearing block 271 and is fixedly connected to the base 270. The deflection unit 27 further includes a deflection motor 272 for driving the longitudinal bracket 21 to rotate around the lower sleeve 260. A driving gear 273 is arranged at the movable end of the deflection motor 272. An extension sleeve 210 (fixed to the inner ring of the bearing block 271) is arranged at the lower end of the longitudinal bracket 21. An arc-shaped rack 211 meshing with the driving gear 273 is arranged on the inner wall of the extension sleeve 210. With this structural design, the driving gear 273 is driven to rotate by the deflection motor 272, and then the arc-shaped rack 211 is driven to rotate, and then the longitudinal bracket 21 is deflected. Then, the lower base 23 is driven to rotate by relying on the positioning fork 242. When the lower base 23 is deflected, the upper claw 25 is synchronously deflected by relying on the display 1. With this kind of step-by-step linkage structure, the clamping, deflection adjustment and lifting adjustment of the display can be combined more closely, the structural layout is more compact, and the overall volume can be made smaller;

[0055] Preferably, the transverse movement unit 22 includes a second lead screw 220 for driving the base 270 to move back and forth and a second lead screw motor 221 for driving the second lead screw 220. The base 270 is slidably arranged on the base 20 in the front-back direction. The front-back movement accuracy is high and the reliability is good.

[0056] Preferably, a Scaler module 10 and a display module 11 are arranged on the display 1. It may also include a key module 12, an MCU 13, a touch module 14 and a changeover switch 15. Among them:

[0057] The Scaler module 10 is used to receive the millimeter wave module detection data sent by the control unit and perform display reminders on the display module according to the millimeter wave module detection data according to the set program. The specific settings and reminder methods can refer to the method description in the following text;

[0058] The Scaler module 10 receives image signals not limited to HDMI, TypeC, DP, but also USB, AHD, AV, YpbPr, CVBS, SDI, DVI, etc., and completes picture scaling and OSD display to output signals such as LVDS, EDP, VBO, MIPI, TTL, Tcom to the display module, not limited to brands and models;

[0059] Such as Figure 3As shown, when a Type-C device is connected and recognized by the Scaler IC, the switch is switched to the 2USB position, and the USB at this position is connected. At this time, the touch module can take effect to reverse-control the image of the signal source. After the gesture is recognized by the millimeter-wave module, it is informed to the Scaler IC through IIC SPI or serial port, which is not specifically limited, and then informed to the MCU to switch the USB switch to the 2USB position to inform the signal source device to control the image of the signal source device and achieve millimeter-wave reverse control.

[0060] As Figure 4 shown, at the same time, set a three-finger swipe down in a region to pop up the Scaler IC menu ( Figure 4 the region pointed by the arrow in Figure 4 ). After the three-finger swipe down in

[0061] As Figure 3 shown, when a non-Type-C device is connected and recognized by the Scaler IC, the switch is switched to the 1USB position, and the USB at the 1USB position is connected to the signal source with a USB cable. At this time, the touch module can take effect to reverse-control the image of the signal source. After the gesture is recognized by the millimeter-wave module, it is informed to the Scaler IC through IIC SPI or serial port, which is not specifically limited, and then informed to the MCU to switch the USB switch to the 1USB position to inform the signal source device to control the image of the signal source device and achieve millimeter-wave reverse control.

[0062] At the same time, set a three-finger swipe down in a region to pop up the Scaler IC menu. As Figure 3 shown, after the three-finger swipe down, the MCU informs the Scaler IC to display the OSD through a control signal. The control signal can be IIC SPI or serial port, which is not specifically limited. After the OSD is displayed, after the gesture is recognized by the millimeter-wave module, it is informed to the Scaler IC through IIC SPI or serial port, which is not specifically limited, to achieve OSD control.

[0063] A millimeter-wave-based display method is applied to the millimeter-wave-based display control device as described above. As Figure 5 shown, the method includes:

[0064] S01: The millimeter-wave module collects a face avatar with positioning frame data, recognizes and obtains the height position information of the face relative to the positioning frame, the face distance position information, and the left and right deflection information, and respectively generates a display height modification parameter, a display front-back distance modification parameter, and a display left and right deflection parameter;

[0065] S02: Send the above parameters to the control unit, which controls the lifting unit, the lateral movement unit and the deflection unit to adjust the height, front and rear position and deflection angle of the display respectively, and sends the millimeter wave module detection data to the display for display reminder;

[0066] The millimeter-wave module is integrated into the existing display adjustment bracket by using a special structure in a pioneering way. While meeting the basic display height, angle, and front and rear position adjustment, the millimeter-wave module and the display are established with a positioning frame. The millimeter-wave module is used to establish a distance relationship between the longitudinal bracket and the display and the viewer. Relying on the above relationship, the data of the millimeter-wave module can be used to complete the fine recognition and adjustment of the height, front and rear position, and deflection angle of the display. The system has a high degree of automation and only requires minor software changes to the display itself to cooperate with the millimeter-wave module to realize a series of functions such as distance, deflection angle, and screen turning off when people leave. It has good functional expansibility and does not involve hardware improvements to the display. It can be applied to existing displays after simple software adjustment and setting. It has good applicability and is suitable for popularization.

[0067] like Figure 6 As shown, the above parameters are sent to the display for display reminder, including reminder of the distance between the user and the display, and the method includes:

[0068] S11: The scaler module of the display receives the distance and position information of the face from the millimeter wave module;

[0069] S12: Determine whether the distance position of the face is within a set distance range;

[0070] S13: If yes, display the set first color value and the specific distance value;

[0071] S14: If the distance is less than the minimum value of the set distance range, the set second color value and the specific distance value are displayed, indicating that the current viewing distance is too close and triggering the timing module. If the distance is not restored to the set range within the first set time, the output signal of the Scaler module is turned off, so that the display module is black screen, until it is restored to the set distance range and the black screen state is released;

[0072] S15: If it is greater than the maximum value of the set distance range, the set third color value and the specific distance value are displayed, indicating that the current viewing distance is too far and triggering the timing module. If it is not restored to the set distance range within the second set time, the output signal of the Scaler module is turned off, so that the display module is black screen, until it is restored to the set distance range. The black screen state is released. If it exceeds the third set time, the display is powered off;

[0073] As Figure 7 shown, millimeter-wave ranging is used to correct the distance between the person and the display. For example, a value of 50 - 70 centimeters is set as the unit. At the same time, the OSD of the Scaler can display the distance between the human body and the display in real time. When the distance is 70 centimeters, the OSD color is green and the specific distance value is displayed. When the distance is 50 centimeters, the OSD color is yellow and the specific distance value is displayed.

[0074] When the distance is less than 50 centimeters, the OSD color is red and the specific distance value is displayed. At this time, the Scaler IC displays another OSD to prompt that the current viewing distance is too close and triggers the timing module. If the human body does not correct within a certain time, this time can also be modified through buttons or touch menus. Turn off the output signal of the Scaler IC to make the display module go black. When the human body leaves 50 centimeters, turn on the display module again. This only turns off the output of the Scaler IC and the backlight of the display module. In this way, when leaving 50 centimeters, the picture can be quickly displayed. If the power of the Scaler IC is cut off, it will take a relatively long time to display the picture again, and the experience is relatively poor.

[0075] This set value can be used to set the preset value by calling out the OSD of the Scaler IC through buttons. Since there are many sizes of display devices, the set values for different sizes of display devices are inconsistent. Another thing worth mentioning is that users can customize it intelligently. Everyone has a slightly different distance from the display. After the human body determines the appropriate distance, nod to confirm the distance. When the appropriate distance is determined, the yellow distance and red distance are automatically generated. The nod action can be replaced with a hand action. To avoid mis-triggering, the number of nods or hand actions can be increased. As Figure 8 shown, the implementation method is as follows:

[0076] S21: After the human body determines the appropriate distance, detect the nod action or hand action in the data through the millimeter-wave module to set the distance range;

[0077] S22: According to the set distance range value, automatically generate the color setting and timing setting according to the setting.

[0078] As Figure 9 shown, sending the above parameters to the display for display reminder includes reminding the user of the distance between the user and the display. The method includes:

[0079] Recognize the gestures and head movements in the data detected by the millimeter-wave module, and control the menu function of the Scaler module. Specifically, adopt:

[0080] S31: When the hand is clenched and then opened, it means calling OSD. When the palm is up or down, the menu moves up and down. Nodding once is for confirmation, shaking the head left or right is for exit, and moving left controls the switching of options, controlling the screen to slide up and down and turn pages left and right;

[0081] S32: Nod to enter the options, move your palm up and down to select a specific item, nod again to confirm, and move your palm left and right again to adjust the specific value;

[0082] S33: Shake your head left or right once to exit the menu;

[0083] S34: Rotate your palm counterclockwise or clockwise to adjust the volume and backlight brightness;

[0084] By adopting this method, the control function of the display can be greatly enriched.

[0085] like Figure 10 As shown, the above parameters are sent to the display for display reminder, including reminder of the distance between the user and the display, and the method includes:

[0086] The deflection angle in the millimeter wave module detection data is used to determine whether the viewing posture is appropriate. Specifically, the following methods are used:

[0087] S41: When the head deviates up, down, left, and right by no more than 10 degrees, the OSD turns green and displays the specific angles;

[0088] S42: When the head deviates by 10-20 degrees, the OSD is displayed in yellow and displays the specific angles, indicating that the current viewing angle is deviated and triggering the timing module. If it does not return to the set angle range within the fourth set time, the output signal of the Scaler module is turned off, so that the display module is black, and the black screen state is released when it returns to the set angle range;

[0089] S43: When the head deviates by 20-30 degrees, the OSD is displayed in red and displays the specific angles, indicating that the current viewing angle is seriously deviated and triggering the timing module. If it is not restored to the set distance range within the fifth set time, the output signal of the Scaler module is turned off, so that the display module is black screen until it is restored to the set angle range. The black screen state is released. If it exceeds the sixth set time, the display is powered off;

[0090] See also Figure 11, the viewing posture is judged to be appropriate by the angle. Since millimeter waves are emitted at a certain angle, the deviation angle can be set to determine whether the sitting posture is correct. Millimeter wave radars have blind spots, usually with a maximum angle of 150 degrees. Because the radar is installed above the display, and the display is flat, which is 180 degrees, so when installing, 15 degrees will be left on both the left and right. In addition, the waveform emitted by the millimeter wave radar is a three-dimensional conical beam, so the angle values of up and down and left and right can be set.

[0091] Assume that the middle position is zero degree. Then the optimal position of the human head is zero degree. When the head deviates 10 degrees up, down, left, or right, the OSD is displayed in green and the specific angles of up, down, left, and right are shown. When the head deviates 20 degrees up, down, left, or right, the OSD is yellow and the specific angles of up, down, left, and right are shown. When the head deviates 30 degrees up, down, left, or right, the OSD is red and the specific angles of up, down, left, and right are shown. In addition, another OSD is displayed to prompt to straighten the sitting posture and trigger timing. When the preset time value is exceeded, the display screen is turned off. This only turns off the output of the Scaler IC and the backlight of the display module. In this way, when the head leaves and reaches the yellow area, the picture can be quickly displayed. Assuming that the power of the Scaler IC is cut off, it will take a relatively long time to display the picture again, and the experience is relatively poor.

[0092] By adopting this method, it is possible to give a reminder when the viewing posture is incorrect and make the display make a corresponding set response, with a high degree of intelligence, and it also has the function of automatically turning off the display after detecting the posture.

[0093] It should be understood that for those of ordinary skill in the art, improvements or changes can be made according to the above description, and all such improvements and changes should fall within the protection scope of the appended claims of the present invention.

Claims

1. A millimeter wave-based display control device, comprising a display and an adjustment base, characterized in that: The adjustment base includes a base, on which a longitudinal bracket and a transverse movement unit for driving the longitudinal bracket to move forward and backward are provided; a lower base is longitudinally slidably provided on the longitudinal bracket, and a lifting unit for driving the lower base to rise and fall is provided on the longitudinal bracket; an upper clamping claw is connected to the lower base, and the spacing between the lower base and the upper clamping claw is adjustable, and when in use, the display is clamped up and down by the upper clamping claw and the lower base; a longitudinal retractable central axis is fixedly provided on the longitudinal bracket, and a millimeter wave module is embedded at the upper end of the outer surface of the central axis, and the signal emission direction of the millimeter wave module faces straight ahead; the lower base and the upper clamping claw are both provided with a longitudinal extension that is aligned with the central axis matching movable holes; a groove is provided on the front surface of the upper clamping claw to avoid the signal sending and receiving path of the millimeter wave module, and a positioning frame is provided at the front end of the groove to cooperate with the millimeter wave module; the device also includes a deflection unit that drives the lower base and the upper clamping claw to deflect left and right with the central axis as the axis; a control unit is provided on the base, and the control unit is electrically connected to the display, the lateral movement unit, the lifting unit, the millimeter wave module and the deflection unit, and the control unit controls the operation of the lateral movement unit, the lifting unit and the deflection unit according to the detection data of the millimeter wave module, and controls the display to display reminders.

2. The millimeter wave based display control device according to claim 1, characterized in that: The central axis includes a lower sleeve, an upper conduit extending into the lower sleeve and a frustum at the top of the upper conduit, the millimeter wave module is arranged on the frustum, the inner hole of the lower sleeve and the cross-section of the upper conduit are both square; the lower sleeve is threadedly connected with a tightening screw for adjusting the upper conduit, and the inner holes of the lower sleeve and the upper conduit are both wire holes for the millimeter wave module.

3. The millimeter wave based display control device according to claim 2, characterized in that: The lifting unit includes a first longitudinal screw fixed on the longitudinal bracket and a first screw motor driving the first screw; the movable end of the first screw is coaxially rotatably connected to a positioning fork, and the positioning fork is formed with a movable hole for the lower sleeve to pass through, and both ends of the positioning fork are located at the bottom of the lower base and fixedly connected to the lower base.

4. The millimeter wave based display control device according to claim 3, characterized in that: The deflection unit includes a base, on which is provided a bearing seat rotatably connected to the longitudinal bracket, and the lower sleeve passes through the bearing seat and is fixedly connected to the base; the deflection unit also includes a deflection motor that drives the longitudinal bracket to rotate around the lower sleeve, and the movable end of the deflection motor is provided with a driving gear; the lower end of the longitudinal bracket is provided with an extension sleeve, and the inner wall of the extension sleeve is provided with an arc-shaped rack meshing with the driving gear; the transverse movement unit includes a second screw rod that drives the base to move forward and backward and a second screw rod motor that drives the second screw rod; the base is slidably arranged on the base forward and backward.

5. The millimeter wave based display control device according to claim 1, characterized in that: The display is provided with a Scaler module and a display module; The Scaler module is used to receive the millimeter wave module detection data sent by the control unit, and display a reminder on the display module according to the millimeter wave module detection data according to a set program.

6. A millimeter wave based display control method, applied to the millimeter wave based display control device as claimed in any one of claims 1 to 5, characterized in that: The method comprises The millimeter wave module collects the face image with the positioning frame data, identifies and obtains the height position information, face distance position information and left and right deflection information of the face relative to the positioning frame, and generates the display height modification parameters, display front and back distance modification parameters and display left and right deflection parameters respectively; The above parameters are sent to the control unit, and the control unit controls the operation of the lifting unit, the lateral movement unit and the deflection unit to respectively adjust the height, the front and rear position and the deflection angle of the display, and sends the millimeter wave module detection data to the display for display reminders.

7. The millimeter wave based display control method according to claim 6, characterized in that: The sending of the above parameters to the display for display reminder includes reminding the user of the distance between the user and the display, and the method includes: The display's scaler module receives information about the distance and position of the face from the millimeter wave module; Determine whether the face distance position is within the set distance range; If yes, the set first color value and the specific distance value are displayed; If it is less than the minimum value of the set distance range, the set second color value and the specific distance value are displayed, indicating that the current viewing distance is too close and triggering the timing module. If it is not restored to the set distance range within the first set time, the output signal of the Scaler module is turned off, making the display module black screen until it is restored to the set distance range. If it is greater than the maximum value of the set distance range, the set third color value and the specific distance value will be displayed, indicating that the current viewing distance is too far and triggering the timing module. If it is not restored to the set distance range within the second set time, the output signal of the Scaler module will be turned off, making the display module black screen until it is restored to the set distance range. The black screen state is released. If it exceeds the third set time, the display will turn off the power.

8. The millimeter wave based display control method according to claim 7, characterized in that: The method further comprises: When the human body determines the appropriate distance, the distance range is set through the nodding or hand movements in the millimeter wave module detection data; According to the set distance range value, the color setting and timing time setting are automatically generated according to the setting.

9. The millimeter wave based display control method according to claim 6, characterized in that: The sending of the above parameters to the display for display reminder includes reminding the user of the distance between the user and the display, and the method includes: The menu function of the Scaler module is controlled by the gestures and head movements recognized in the millimeter wave module detection data. Specifically, the following methods are used: When the hand is clenched and then opened, it means calling OSD. When the palm is up or down, the menu moves up and down. Nod once to confirm, shake the head left or right to exit, move left to control the switching of options, control the screen to slide up and down and turn pages left and right; Nod to enter the options, move your palm up and down to select a specific item, nod again to confirm, and move your palm left and right again to adjust the specific value; Shake your head left or right once to exit the menu; Rotate your palm counterclockwise or clockwise to adjust the volume and backlight.

10. The millimeter wave based display control method according to claim 6, characterized in that: The sending of the above parameters to the display for display reminder includes reminding the user of the distance between the user and the display, and the method includes: The deflection angle in the millimeter wave module detection data is used to determine whether the viewing posture is appropriate. Specifically, the following methods are used: When the head deviates up, down, left, or right by no more than 10 degrees, the OSD turns green and displays the specific angles; When the head deviates by 10-20 degrees, the OSD is displayed in yellow and displays the specific angles, indicating that the current viewing angle is deviated and triggering the timing module. If it does not return to the set angle range within the fourth set time, the output signal of the Scaler module is turned off, making the display module black until it returns to the set angle range. When the head deviates by 20-30 degrees up, down, left, and right, the OSD turns red and displays the specific angles up, down, left, and right, indicating that the current viewing angle is seriously deviated and triggering the timing module. If it does not return to the set distance range within the fifth set time, the output signal of the Scaler module is turned off, causing the display module to go black until it returns to the set angle range. If it exceeds the sixth set time, the display is powered off.

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