CN210377621U - Wireless voting controller - Google Patents
Wireless voting controller Download PDFInfo
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- CN210377621U CN210377621U CN201921537432.0U CN201921537432U CN210377621U CN 210377621 U CN210377621 U CN 210377621U CN 201921537432 U CN201921537432 U CN 201921537432U CN 210377621 U CN210377621 U CN 210377621U
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Abstract
The utility model discloses a wireless voting controller, compare with the conventional art, imbed the wireless voting host computer into the mounting groove, make the wireless voting host computer and form relatively stable between the mounting groove, even the mistake touches, because the effect of mounting groove and host installation seat, can not cause the damage or destroy to the wireless voting host computer, also can pull out the wireless voting host computer from the mounting groove at any time, convenient to use; in addition, voltage conversion is realized through a boost conversion chip so as to drive a display screen control chip, a first control module is used for selectively closing the backlight of the display screen, when a conference is not carried out or the display screen is not used, a power supply can be saved, a second control module selectively adjusts the backlight brightness of the display screen, the brightness of the display screen can be adjusted by a user according to different use environments, so that the conference can be checked, the energy-saving effect is also achieved, and therefore the user can conveniently adjust the display screen as required, the use performance of the display screen is improved, and the energy is relatively saved.
Description
Technical Field
The utility model belongs to the technical field of the conference is voted and specifically relates to a wireless voting controller.
Background
Meetings are visible everywhere in daily life, and are necessary whether in the office or just for discussion of an event. In a conference, especially in a company, a project usually needs to be voted, in a voting device on the existing market, an integrated host is generally provided for a user to carry out handheld operation control, as the voting host is usually light and small, under the condition that people are in a mess in the conference, the voting host is easy to be touched by mistake, so that the voting host is broken or damaged, and in the aspect of voting display, a display screen generally equipped with the voting host is fixed in parameters, so that corresponding adjustment under a corresponding use environment cannot be realized, and the voting device is inconvenient for the user.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model aims at providing a wireless voting controller has the stable advantage of installation, can avoid the influence of mistake touching to convenience of customers adjusts as required to the display screen, thereby promotes the performance of display screen.
In order to compensate the deficiency of the prior art, the embodiment of the utility model provides an adopt technical scheme is:
a wireless voting controller, comprising:
the wireless voting host comprises a wireless voting host and a host mounting seat, wherein the host mounting seat is provided with a mounting groove, and one end of the wireless voting host is detachably embedded into the mounting groove; the wireless voting host is internally provided with a display screen control chip and a main control circuit for realizing backlight adjustment of the display screen;
the main control circuit comprises a boost conversion chip, a first resistor, a first capacitor, a first inductor, a first diode, a first control module for selectively turning off the backlight of the display screen and a second control module for selectively adjusting the backlight brightness of the display screen, wherein the first control module comprises a second resistor, a third resistor and a fourth resistor, and the second control module comprises a second capacitor, a third capacitor, a fifth resistor and a sixth resistor;
the enabling end of the boost conversion chip is respectively connected to an SD interface of the display screen control chip through the first resistor, connected to an external power supply through the second resistor, connected to a reference ground through the third resistor and connected to the display screen through the fourth resistor; the input voltage end of the boost conversion chip is connected to a reference ground through the first capacitor and is also connected to the display screen through the first inductor and the first diode which are connected in series, wherein the first inductor is connected to the anode of the first diode; the feedback end of the boost conversion chip is respectively connected to one end of the fifth resistor and one end of the sixth resistor, the other end of the fifth resistor is connected to the reference ground, and the other end of the sixth resistor is connected to the cathode of the first diode and is also connected to the reference ground through the second capacitor and the third capacitor which are connected in parallel.
Further, the boost conversion chip adopts an MT3608 chip.
Further, the working voltage of the boost conversion chip is 3.3V.
Further, the technical scheme includes that the communication circuit is used for achieving information transmission of the display screen, and the communication circuit includes a communication chip, a fourth capacitor and a pull-up resistor set, the pull-up resistor set includes a plurality of pull-up resistors connected in parallel, a power supply voltage end of the communication chip is connected to a reference ground through the fourth capacitor, a serial clock pin and a serial data pin of the communication chip are both connected to the display screen control chip, a protection pin of the communication chip is connected to the reference ground, and the serial data pin of the communication chip is also connected to the power supply voltage through the pull-up resistor set.
Further, the communication chip adopts an AT24C02 chip.
Further, the working voltage of the communication chip is 3.3V.
The embodiment of the utility model provides an in one or more technical scheme, following beneficial effect has at least: the mounting groove is formed in the host mounting seat, so that the mounting groove has certain stability, the wireless voting host is embedded into the mounting groove, relative stability between the wireless voting host and the mounting groove can be guaranteed, even if mistaken touch occurs, the wireless voting host cannot be damaged or destroyed due to the effects of the mounting groove and the host mounting seat, and meanwhile, the wireless voting host can be detached from the mounting groove at any time, and the use is convenient; in addition, in the main control circuit, voltage conversion is realized through the boost conversion chip so as to drive the display screen control chip, particularly, the first control module is designed to be used for selectively closing the backlight of the display screen, so that the power supply can be saved when a conference is not carried out or the display screen is not used, the second control module is designed to selectively adjust the backlight brightness of the display screen, the brightness of the display screen can be adjusted by a user according to different using environments, the conference can be conveniently checked, and the energy-saving effect is also achieved. Therefore, the utility model relates to a rationally simple and convenient, have advantages such as the installation is stable, convenient to use, can avoid the mistake to touch the influence of bumping the host computer of voting to convenience of customers adjusts as required to the display screen, thereby promotes the performance of display screen, and is energy-conserving relatively more.
Drawings
The following description of the preferred embodiments of the present invention will be made with reference to the accompanying drawings.
Fig. 1 is a first schematic structural diagram of a wireless voting host of a wireless voting controller according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the partially exploded structure of FIG. 1;
fig. 3 is a schematic structural diagram of a wireless voting host of the wireless voting controller according to the embodiment of the present invention;
fig. 4 is a block diagram of a circuit structure of a wireless voting controller according to an embodiment of the present invention;
fig. 5 is a schematic circuit diagram of a main control circuit of a wireless voting controller according to an embodiment of the present invention;
fig. 6 is a schematic circuit diagram of a communication circuit of a wireless voting controller according to an embodiment of the present invention;
fig. 7 is a schematic circuit diagram of a display screen control chip of the wireless voting controller according to an embodiment of the present invention.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the description of the present invention, a plurality of means are one or more, and a plurality of means are two or more. The description of first, second, etc. if any, is for the purpose of distinguishing between technical features and not intended to indicate or imply relative importance or implicitly indicate a number of indicated technical features or implicitly indicate a precedence relationship of indicated technical features.
In the description of the present invention, unless there is an explicit limitation, the words such as setting and connection should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the above words in the present invention by combining the specific contents of the technical solution.
The embodiments of the present invention will be further explained with reference to the drawings.
Referring to fig. 1-5 and fig. 7, an embodiment of the present invention provides a wireless voting controller, including:
the wireless voting host 100 and the host mounting seat 200, wherein the host mounting seat 200 is provided with a mounting groove 210, and one end of the wireless voting host 100 is detachably embedded into the mounting groove 210; the external surface of the wireless voting host 100 is provided with a display screen 110 for displaying voting information, and the inside of the wireless voting host 100 is provided with a display screen control chip 300 and a main control circuit 400 for realizing backlight adjustment of the display screen 110;
the main control circuit 400 comprises a boost conversion chip U5, a first resistor R11, a first capacitor C12, a first inductor L1, a first diode D1, a first control module 410 for selectively turning off the backlight of the display screen 110, and a second control module 420 for selectively adjusting the backlight brightness of the display screen 110, wherein the first control module 410 comprises a second resistor R12, a third resistor R13 and a fourth resistor R14, and the second control module 420 comprises a second capacitor C13, a third capacitor C14, a fifth resistor R15 and a sixth resistor R16;
the enable terminal EN of the boost converter chip U5 is connected to the SD interface of the display panel control chip 300 through a first resistor R11, to the external power supply through a second resistor R12, to the ground reference through a third resistor R13, and to the display panel 110 through a fourth resistor R14, respectively; an input voltage terminal VIN of the boost conversion chip U5 is connected to a ground reference through a first capacitor C12 and is also connected to the display screen 110 through a first inductor L1 and a first diode D1 connected in series, wherein the first inductor L1 is connected to the anode of the first diode D1; the feedback terminal FB of the boost conversion chip U5 is respectively connected to one end of a fifth resistor R15 and one end of a sixth resistor R16, the other end of the fifth resistor R15 is connected to the reference ground, and the other end of the sixth resistor R16 is connected to the cathode of the first diode D1 and is also connected to the reference ground through a second capacitor C13 and a third capacitor C14 which are connected in parallel.
In this embodiment, since the mounting groove 210 is opened on the host mounting seat 200, the mounting groove 210 has a certain stability, and thus the wireless voting host 100 is embedded into the mounting groove 210, it can be ensured that the wireless voting host 100 and the mounting groove 210 are relatively stable, even if a false touch occurs, the wireless voting host 100 will not be damaged or destroyed due to the effect of the mounting groove 210 and the host mounting seat 200, and meanwhile, the wireless voting host 100 can be detached from the mounting groove 210 at any time, which is convenient to use; in addition, in the main control circuit 400, voltage conversion is implemented by the boost converter chip U5 to drive the display screen control chip 300, and in particular, the first control module 410 is designed to select to turn off the backlight of the display screen 110, so that power can be saved when a conference is not in progress or the display screen 110 is not used, and the second control module 420 is designed to select to adjust the backlight brightness of the display screen 110, so that the brightness of the display screen 110 can be adjusted by a user according to different use environments, so as to facilitate viewing of the conference, and also have an energy saving effect. Therefore, the utility model relates to a rationally simple and convenient, have advantages such as the installation is stable, convenient to use, can avoid the mistake to touch the influence of bumping the host computer of voting to convenience of customers adjusts as required to display screen 110, thereby promotes display screen 110's performance, and is energy-conserving relatively more.
Specifically, the display screen control chip 300 preferably adopts a high-performance LCD display screen 110 controller, the model is armcotex-M7, and the display screen control chip has the advantages of real-time low-delay response, quick voting result display driving and the like; the second resistor R12, the third resistor R13 and the fourth resistor R14 are respectively connected to the power voltage, the reference ground and the display screen 110, so that when any one of the paths is controlled to be switched on or switched off, corresponding functions can be removed, backlight driving can be realized by switching on or switching off any one of the paths, and convenience is brought; the second capacitor C13, the third capacitor C14, the fifth resistor R15 and the sixth resistor R16 are all connected to the feedback terminal FB of the boost converter chip U5, and the change of the output voltage can be realized through the change of the feedback voltage, that is, the voltage output to the display screen 110 by the sixth resistor R16 is variable, and the brightness adjustment of the display screen 110 can be realized through the change, and the second capacitor C13, the third capacitor C14 and the fifth resistor R15 mainly play a role in voltage stabilization; the first diode D1, the first capacitor C12 and the first inductor L1 cooperate to perform filtering to output a stably boosted voltage to the display screen 110, and the first resistor R11 is used to provide a turn-on voltage for an enable terminal EN signal of the boost converter chip U5.
Further, another embodiment of the present invention further provides a wireless voting controller, wherein the boost converter chip U5 adopts an MT3608 chip. In this embodiment, the MT3608 chip is used as a synchronous boost IC, has stable output boost performance, is used for low-power devices, and is applied to the boost conversion chip U5 of this embodiment.
Further, another embodiment of the present invention also provides a wireless voting controller, wherein the operating voltage of the boost conversion chip U5 is 3.3V. In this embodiment, the 3.3V supply voltage can match a conventional commercial boost chip, and the design can be used for reference by industry technicians.
Further, referring to fig. 6, another embodiment of the present invention further provides a wireless voting controller, wherein the wireless voting controller further includes a communication circuit 500 for implementing information transmission of the display screen 110, the communication circuit 500 includes a communication chip U4, a fourth capacitor C11 and a pull-up resistor group 510, the pull-up resistor group 510 includes a plurality of pull-up resistors R9 connected in parallel, a power voltage end of the communication chip U4 is connected to a reference ground through the fourth capacitor C11, a serial clock pin SCL and a serial data pin SDA of the communication chip U4 are both connected to the display screen control chip 300, a protection pin WP of the communication chip U4 is connected to the reference ground, and a serial data pin SDA of the communication chip U4 is also connected to a power voltage through the pull-up resistor group 510.
In the present embodiment, the pull-up resistor set 510 may enhance the communication stability, and the fourth capacitor C11 is used for filtering the power supply voltage; the protection pin WP of the communication chip U4 is grounded, which has a write protection function, and prevents the communication chip U4 from being burned out under abnormal conditions (such as overvoltage and overcurrent), and the serial clock pin SCL and the serial data pin SDA of the communication chip U4 are used to send information of the display screen 110 to the display screen control chip 300, thereby realizing stable communication docking.
Further, another embodiment of the present invention also provides a wireless voting controller, wherein the communication chip U4 adopts an AT24C02 chip. In this embodiment, the AT24C02 chip has high and stable performance, contains 256 8-bit bytes inside, has an 8-byte page write buffer, operates through the IIC bus interface, has a special write protection function, and is suitable for the communication chip U4 of this embodiment.
Further, another embodiment of the present invention also provides a wireless voting controller, wherein the operating voltage of the communication chip U4 is 3.3V. In this embodiment, the 3.3V power supply voltage can match the conventional commercial communication chip U4, and the design can be used for reference by industry technicians.
While the preferred embodiment and basic principles of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the embodiments disclosed, but is intended to cover various modifications, equivalents and alternatives falling within the scope of the invention as claimed.
Claims (6)
1. A wireless voting controller, comprising:
the wireless voting host comprises a wireless voting host and a host mounting seat, wherein the host mounting seat is provided with a mounting groove, and one end of the wireless voting host is detachably embedded into the mounting groove; the wireless voting host is internally provided with a display screen control chip and a main control circuit for realizing backlight adjustment of the display screen;
the main control circuit comprises a boost conversion chip, a first resistor, a first capacitor, a first inductor, a first diode, a first control module for selectively turning off the backlight of the display screen and a second control module for selectively adjusting the backlight brightness of the display screen, wherein the first control module comprises a second resistor, a third resistor and a fourth resistor, and the second control module comprises a second capacitor, a third capacitor, a fifth resistor and a sixth resistor;
the enabling end of the boost conversion chip is respectively connected to an SD interface of the display screen control chip through the first resistor, connected to an external power supply through the second resistor, connected to a reference ground through the third resistor and connected to the display screen through the fourth resistor; the input voltage end of the boost conversion chip is connected to a reference ground through the first capacitor and is also connected to the display screen through the first inductor and the first diode which are connected in series, wherein the first inductor is connected to the anode of the first diode; the feedback end of the boost conversion chip is respectively connected to one end of the fifth resistor and one end of the sixth resistor, the other end of the fifth resistor is connected to the reference ground, and the other end of the sixth resistor is connected to the cathode of the first diode and is also connected to the reference ground through the second capacitor and the third capacitor which are connected in parallel.
2. A wireless voting controller according to claim 1, wherein: the boost conversion chip adopts an MT3608 chip.
3. A wireless voting controller according to claim 1, wherein: the working voltage of the boost conversion chip is 3.3V.
4. A wireless voting controller according to any one of claims 1 to 3, wherein: the communication circuit comprises a communication chip, a fourth capacitor and a pull-up resistor group, wherein the pull-up resistor group comprises a plurality of pull-up resistors connected in parallel, a power supply voltage end of the communication chip is connected to a reference ground through the fourth capacitor, a serial clock pin and a serial data pin of the communication chip are both connected to the display screen control chip, a protection pin of the communication chip is connected to the reference ground, and the serial data pin of the communication chip is also connected to the power supply voltage through the pull-up resistor group.
5. A wireless voting controller according to claim 4, wherein: the communication chip adopts an AT24C02 chip.
6. A wireless voting controller according to claim 4, wherein: the working voltage of the communication chip is 3.3V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921537432.0U CN210377621U (en) | 2019-09-16 | 2019-09-16 | Wireless voting controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921537432.0U CN210377621U (en) | 2019-09-16 | 2019-09-16 | Wireless voting controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210377621U true CN210377621U (en) | 2020-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921537432.0U Active CN210377621U (en) | 2019-09-16 | 2019-09-16 | Wireless voting controller |
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| Country | Link |
|---|---|
| CN (1) | CN210377621U (en) |
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- 2019-09-16 CN CN201921537432.0U patent/CN210377621U/en active Active
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