CN108682315A - A kind of wireless communication display circuit and passive display board - Google Patents
A kind of wireless communication display circuit and passive display board Download PDFInfo
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- CN108682315A CN108682315A CN201810689447.2A CN201810689447A CN108682315A CN 108682315 A CN108682315 A CN 108682315A CN 201810689447 A CN201810689447 A CN 201810689447A CN 108682315 A CN108682315 A CN 108682315A
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- 230000006854 communication Effects 0.000 title claims abstract description 101
- 238000004891 communication Methods 0.000 title claims abstract description 99
- 238000006243 chemical reaction Methods 0.000 claims abstract description 49
- 238000002604 ultrasonography Methods 0.000 claims description 48
- 238000004146 energy storage Methods 0.000 claims description 25
- 238000001514 detection method Methods 0.000 claims description 23
- 230000005611 electricity Effects 0.000 claims description 12
- 239000013078 crystal Substances 0.000 claims description 10
- 230000005693 optoelectronics Effects 0.000 claims description 7
- 230000003287 optical effect Effects 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims 1
- 230000008054 signal transmission Effects 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 8
- 239000004065 semiconductor Substances 0.000 description 8
- 238000012360 testing method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000005622 photoelectricity Effects 0.000 description 2
- 235000013311 vegetables Nutrition 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of DC power input into DC power output
- H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
- H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
- H02M3/10—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
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Abstract
The invention belongs to energy saving display technology fields, mainly provide a kind of wireless communication display circuit and passive display board, the luminous energy in environment is acquired by photoelectric conversion module, and it converts light energy into electric energy and main control module and communication module is powered, main control module is interacted with host side by communication module and is communicated, and second control signal is sent to display module according to the first control signal of communication module input, display module shows corresponding information according to second control signal, realize the information update of display board, it solves existing display board to need external power supply or use battery powered, lead to the restricted problem of display board use scope.
Description
Technical field
The invention belongs to energy saving display technology field more particularly to a kind of wireless communication display circuits and passive display board.
Background technology
With the continuous development of life, the every field in people’s lives, LED display continuously emerges in LED display boards
As a kind of digitized display device, the occasions such as bank, billboard, electronics price display are widely used in, are people's
It is convenient that life is brought.
However, existing display board usually requires external power supply or uses battery powered, display board is significantly limited
Use scope.
Invention content
The purpose of the present invention is to provide a kind of wireless communication display circuit and passive display boards, it is intended to solve existing aobvious
Show that board usually requires external power supply or uses battery powered, leads to the restricted problem of display board use scope.
The present invention provides a kind of wireless communication display circuits, are wirelessly connected with host side, the wireless communication display electricity
Road includes：
For converting the optical signal of acquisition to electric signal, and to the photoelectricity for wirelessly communicating display circuit and being powered
Conversion module；
It is connect with the photoelectric conversion module, the communication module for being communicated with the host side；
The display module shown for the information to reception；And
It is connect with the photoelectric conversion module, the display module and the communication module, for according to the communication
Module receives the first control signal of the host side output, and the first control signal is converted to second control signal
It is transferred to the display module, so that the main control module that the display module shows described information.
Optionally, the wireless communication display circuit further includes：
Connect with the photoelectric conversion module and the main control module, for detect ultrasound transmit sensor with it is to be checked
The distance between object is surveyed, and sends the ultrasound examination module of detection signal to the main control module.
The present invention provides a kind of wireless communication display circuit and passive display boards, and environment is acquired by photoelectric conversion module
In luminous energy, and convert light energy into electric energy and main control module and communication module be powered, main control module, which passes through, communicates mould
Block is interacted with host side and is communicated, and sends the second control to display module according to the first control signal of communication module input
Signal, display module show corresponding information according to second control signal, realize the information update of display board, solve existing
Display board need external power supply or use battery powered, lead to the restricted problem of display board use scope.
Description of the drawings
Fig. 1 is a kind of modular structure schematic diagram for wireless communication display circuit that the embodiment of the present invention proposes；
Fig. 2 is a kind of modular structure schematic diagram for wireless communication display circuit that the embodiment of the present invention proposes；
Fig. 3 is that a kind of circuit structure of the photoelectric conversion module for wireless communication display circuit that the embodiment of the present invention proposes shows
It is intended to；
Fig. 4 is a kind of circuit structure signal of the communication module for wireless communication display circuit that the embodiment of the present invention proposes
Figure；
Fig. 5 is a kind of circuit structure of the ultrasound examination module for wireless communication display circuit that the embodiment of the present invention proposes
Schematic diagram；
Fig. 6 is a kind of circuit structure signal of the main control module for wireless communication display circuit that the embodiment of the present invention proposes
Figure.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
In the description of the present invention, it is to be understood that, term " first ", " second " are used for description purposes only, and cannot
It is interpreted as indicating or implies relative importance or implicitly indicate the quantity of indicated technical characteristic.Define as a result, " the
One ", the feature of " second " can explicitly or implicitly include one or more this feature.
Fig. 1 is a kind of modular structure schematic diagram of the wireless communication display circuit proposed in the embodiment of the present invention, such as Fig. 1 institutes
Show, the wireless communication display circuit in the present embodiment, is wirelessly connected with host side, the wireless communication display circuit in the present embodiment
Including：Opto-electronic conversion mould for converting electric signal, and being powered to wirelessly communicating display circuit the optical signal of acquisition to
Block 10；It is connect with photoelectric conversion module 10, the communication module 30 for being communicated with host side；For the information to reception into
The display module 40 of row display；And connect with photoelectric conversion module 10, display module 40 and communication module 30, it is used for basis
Communication module 30 receives the first control signal of host side output, and first control signal is converted to second control signal and is passed
It is defeated by display module 40, so that the main control module 20 that display module 40 shows information.
In the present embodiment, photoelectric conversion module 10 is mainly used for being acquired the light in environment and carrying out photoelectricity turn
It changes, when the wireless communication display circuit is used for electronic price label, photoelectric conversion module 10 is used for electronic price label institute
Low-light in place's environment is acquired, specifically, photoelectric conversion module 10 is connect with main control module 20, main control module 20 detects
In photoelectric conversion module solar cell output voltage signal be more than the first preset value after control photoelectric conversion module 10 into
Row energy acquisition is closed photoelectric conversion module and is believed light if the voltage signal of solar cell output is less than the second preset value
Number acquisition and conversion.
Specifically, the display module 40 in the present embodiment can be the information display devices such as electronic price label, billboard,
Host side is carried out data transmission by communication module 30 and main control module 20, when host side is needed to shown by display module 40
When information is updated, first control signal is sent to main control module 20 by communication module 30, main control module 20 receives the
First control signal is converted into the second control signal that driving display module 40 shows corresponding informance, display after one control signal
Module 40 shows corresponding display information after receiving second control signal.
As an embodiment of the present invention, Fig. 2 is a kind of mould of the wireless communication display circuit proposed in the embodiment of the present invention
Block structure schematic diagram, as shown in Fig. 2, the wireless communication display circuit in the present embodiment further includes：With photoelectric conversion module 10 with
And main control module 20 connects, for detecting the distance between ultrasound transmit sensor and examined object and to main control module 20
Send the ultrasound examination module 50 of detection signal.
In the present embodiment, ultrasound examination module 50 is mainly for detection of ultrasound transmit sensor and object under test
Distance, main control module 20 according to detection signal to display module 40 export third drive signal and to main control end send third it is anti-
Feedback signal.For example, when the wireless communication display circuit in the present embodiment is used for electronic price label, ultrasound examination module 50 is examined
The vegetables for measuring predeterminable area lack, then sending third feedback signal prompt vegetables to main control end lacks information, in the present embodiment
Wireless communication display circuit be used for billboard when, if ultrasound examination module 50 detects that someone walks close to, to display module
40 output third drive signal driving display modules 40 show corresponding advertising information, realize the energy-efficient effect of low-power consumption.This
Wireless communication display circuit in embodiment can be also used for the necks such as passive traffic information indicator, passive item management label
Domain, wherein the corresponding informance and main control module 20 that display module 40 is shown are according to detection signal to the output of display module 40 the
Three drive signals and to main control end send third feedback signal can need to be arranged according to user.
As an embodiment of the present invention, the first voltage detection signal output end SOLAR10 and master of photoelectric conversion module 10
The first voltage for controlling module 20 detects signal input part SOLAR connections, and the first voltage feedback signal of photoelectric conversion module 10 is defeated
Enter to hold SOLAR_PWM10 to be connect with the first voltage feedback signal output SOLAR_PWM of main control module 10, photoelectric conversion module
10 first voltage signal output end VCC10 is connect with the power supply input terminal VCC of main control module 20.
Fig. 3 is a kind of circuit knot of the photoelectric conversion module of the wireless communication display circuit proposed in the embodiment of the present invention 3
Structure schematic diagram, as shown in figure 3, photoelectric conversion module 10 includes：Solar panel SC, first switch pipe M1, second switch pipe
M2, the first diode D1, the first inductance L1 and the first capacitance C1.Specifically, the cathode output end of solar panel SC connects
Ground, the cathode output end of solar panel SC are connect altogether with the current input terminal of first switch pipe M1 as photoelectric conversion module 10
First voltage detect signal output end SOLAR10, the control terminal of first switch pipe M1 and the control terminal of second switch pipe M2 are total
The first voltage feedback signal input terminal SOLAR_PWM10 as photoelectric conversion module 10 is met, the electric current of first switch pipe M1 is defeated
Outlet is connect with the current input terminal of second switch pipe M2, the current output terminal of second switch pipe M2, the first diode D1 the moon
The first end of pole and the first inductance L1 connect altogether, the plus earth of the first diode D2, the second end and first of the first inductance L1
The first end of capacitance C1 connects of first voltage the signal output end VCC10, the first capacitance C1 as photoelectric conversion module 10 altogether
Two ends are grounded.
As an embodiment of the present invention, first switch pipe M1, second switch pipe M2 are p-type metal-oxide-semiconductor, specifically, p-type
The control terminal of metal-oxide-semiconductor is the control terminal of first switch pipe M1, second switch pipe M2, and the source electrode of p-type metal-oxide-semiconductor is first switch pipe
The current input terminal of M1, second switch pipe M2, the source drain of p-type metal-oxide-semiconductor are the electricity of first switch pipe M1, second switch pipe M2
Flow output end.
As an embodiment of the present invention, the radio frequency core of the first power end RF_VCC30 and main control module 20 of communication module 30
The RF_VCC connections of piece power output end, the first voltage of the second source end VCC30 and photoelectric conversion module 10 of communication module 30
Signal output end VCC10 connections, the clock signal input terminal U_SCK30 and the clock signal of main control module 20 of communication module 30 are defeated
Outlet U_SCK connections, the serial data end U_SDI30 of communication module 30 are connect with the serial data end U_SDI of main control module 20,
First chip selection signal input terminal U_CSN30 of communication module 30 and the first chip selection signal output end U_CSN of main control module 20 connect
It connects, the second chip selection signal input terminal U_SDO30 of communication module 30 and the second chip selection signal output end U_SDO of main control module 20
Connection.
Fig. 4 is that a kind of circuit structure of the communication module of the wireless communication display circuit proposed in the embodiment of the present invention 4 shows
It is intended to, as shown in figure 4, in the present embodiment, communication module 30 includes：Radio frequency chip U1, the second capacitance C2, third capacitance C3,
4th capacitance C4, the 5th capacitance C5, the 6th capacitance C6, the 7th capacitance C7, the 8th capacitance C8, the 9th capacitance C9, the 11st capacitance
C11, the 12nd capacitance C12, the 13rd capacitance C13, the 14th capacitance C14, the 15th capacitance C15, the 16th capacitance C16,
Two inductance L2, third inductance L3, the 6th inductance L6, the 7th inductance L7, the 8th inductance L8, the 9th inductance L9, antenna filter unit
301, antenna Antenna and the first crystal oscillator Y1.Specifically, the electricity of the clock signal input terminal SCLK of radio frequency chip U1 and the 16th
The first end for holding C16 connects the clock signal input terminal U_SCK30 as communication module 30, the serial data end of radio frequency chip U1 altogether
The first end of SDIO and the 15th capacitance C15 meet the serial data end U_SDI30 as communication module 30 altogether, radio frequency chip U1's
The first end of first chip selection signal input terminal CSB and the 14th capacitance C14 connects the first chip selection signal as communication module 30 altogether
The first end of input terminal U_CSN30, the second chip selection signal input terminal FCSB and the 13rd capacitance C13 of radio frequency chip connect conduct altogether
Second chip selection signal input terminal U_SDO30 of communication module 30, the second end of the 13rd capacitance C13, the 14th capacitance C14
The second end at two ends, the second end of the 15th capacitance C15 and the 16th capacitance C16 connects altogether to be connected to the ground, radio frequency chip U1's
The first end of first frequency signal output end XO, the first end of the first crystal oscillator Y1 and the 12nd capacitance C12 connect altogether, radio frequency chip
First frequency signal input part XI, the second end of the first crystal oscillator Y1 and the first end of the 11st capacitance C11 of U1 connects altogether, and the tenth
The second end of one capacitance C11 is connected to ground altogether with the second end of the 12nd capacitance C12, and the ground terminal of radio frequency chip U1 is connected to ground,
The first power end DVDD of radio frequency chip U1, the first end of the second capacitance C2 connect the first power end as communication module 30 altogether
RF_VCC30, the second end of the second capacitance C2, the first ground terminal of radio frequency chip U1, radio frequency chip U1 the second ground terminal and
The first end of third capacitance C3 is connected to ground altogether, and the second end of third capacitance C3 connects altogether with the second source end AVDD of radio frequency chip U1
As the second source end VCC30 of communication module 30, the first differential signal input RFIN, the 7th capacitance C7 of radio frequency chip U1
First end, the first end of the 8th inductance L8 and the first end of the 6th inductance L6 connect altogether, the second end of the 7th capacitance C7 ground connection,
The second differential signal input RFIP of radio frequency chip U1, the second end of the 8th inductance L8, the first end of the 7th inductance L7 and
The first end of 9th capacitance C9 connects altogether, the second end of the 7th inductance L7 ground connection, the aerial signal input terminal PA of radio frequency chip U1, the
The first end of nine inductance L9 and the first end of the 6th capacitance C6 connect altogether, the second end of the 9th inductance L9, the 4th capacitance C4
The first end of one end and the 5th capacitance C5 meet the second source end VCC30 as communication module 30 altogether, and the of the 4th capacitance C4
The second end of two ends and the 5th capacitance C5 are connected to ground altogether, and the second end of the 6th capacitance C6 and the first end of the second inductance L2 connect
It connects, the first end of the second end of the second inductance L2, the first end of the 8th capacitance C8 and third inductance L3 connects altogether, third inductance L3
Second end, the second end of the 6th inductance L6, the first end of the second end of the 9th capacitance C9 and antenna filter unit 301 it is total
It connects, the second end of antenna filter unit 301 is connect with antenna Antenna.
As an embodiment of the present invention, the model CMT2300A of radio frequency chip.
In the present embodiment, the communication module 30 in display circuit is wirelessly communicated with during host side interactive communication, is led to
Cross, energy consumption in as far as possible less communication process, i.e., by as far as possible few primary with host side communication interaction after timing wake-up
Stand-by period to reduce the energy consumption in communication process.
Specifically, the timing of wireless communication display circuit and host side carry out communication interaction, if host side has data update
Show information, then host side, which is sent, needs newer data packet, such as pricing information, advertising information etc..If wireless communication display
Circuit detects that ultrasound transmit sensor within the scope of pre-determined distance, is then begun attempt to and host at a distance from object under test
End is communicated, and host side feeds back to wireless communication display circuit with answer signal after receiving data, and wireless communication is aobvious at this time
Show after circuit receives answer signal no longer transmission data information, while showing corresponding second display information, if the display mould
Block is for showing electronic article label, then the second display information can be the information such as " waiting replenishing ", " shortage of goods ".
As an embodiment of the present invention, refering to Fig. 4, antenna filter unit 301 includes：4th inductance L4, the 5th inductance L5
And the tenth capacitance C10.Specifically, first end of the first end of the 4th inductance L4 as antenna filter unit 301, the 4th inductance
The first end of the second end of L4, the first end of the 5th inductance L5 and the tenth capacitance C10 connects altogether, the second end of the tenth capacitance C10
Ground connection, the second end of the second end of the 5th inductance L5 as antenna filter unit 301.
As an embodiment of the present invention, the power end AMP_VCC50's Yu main control module 20 of ultrasound examination module 50 is super
The AMP_VCC connections of sound wave power output end, sound wave input terminal US015_CON50 and the main control module 20 of ultrasound examination module 50
The US015_CON connections of sonic detection signal output end, the sound wave output end US015_INT50 of ultrasound examination module 50 and master
Control the sonic detection signal input part US015_INT connections of module 20, the first pulse-width signal of ultrasound examination module 50
Input terminal PWM_A50 is connect with the first pulse-width signal output end PWM_A of main control module 20, ultrasound examination module 50
Second pulse-width signal input terminal PWM_B50 is connect with the second pulse-width signal output end PWM_B of main control module 20.
Fig. 5 is a kind of circuit of the ultrasound examination module of the wireless communication display circuit proposed in the embodiment of the present invention 5
Structural schematic diagram, as shown in figure 5, in the present embodiment, ultrasound examination module 50 includes：Ultrasound transmit sensor TX, surpass
Acoustic receiving transducer RX, operational amplifier chip U2, first resistor R1, second resistance R2,3rd resistor R3, the 4th resistance
R4, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7, the 8th resistance R8, the 9th resistance R9, the tenth resistance R10, the 11st
Resistance R11, twelfth resistor R12, thirteenth resistor R13, the 14th resistance R14, the 15th resistance R15, the 16th resistance
R16, the 17th resistance R17, the 18th resistance R18, the 19th resistance R19, the 20th resistance R20, the 18th capacitance C18,
19 capacitance C19 and the second diode D2.Specifically, the first input end PWM_A50 conducts of ultrasound transmit sensor 50
First pulse-width signal input terminal PWM_A50 of ultrasound examination module 50, the second input of ultrasound transmit sensor 50
Hold second pulse-width signal input terminal PWM_B50s of the PWM_B50 as ultrasound examination module 50, ultrasonic receiver sensor
The first output end of RX is connect with the first end of first resistor R1, the second end of first resistor R1, the first end of second resistance R2,
The first end of 3rd resistor R3 and the first negative input end 1IN- of operational amplifier chip U2 connect altogether, and the second of second resistance R2
End, the second end of 3rd resistor R3, the first end of the 4th resistance R4 and operational amplifier chip U2 the first output end 1OUT
It connects altogether, the first end of the tenth resistance R10 is connect with the first positive input terminal 1IN+ of operational amplifier chip U2, the tenth resistance R10
Second end ground connection, the first end of the 9th resistance R9, the first end of the 18th capacitance C18, the first end of eleventh resistor R11 with
And the second positive input terminal 2IN+ of operational amplifier U2 connects altogether, the second end of the 4th resistance R4, the first end of the 7th resistance R7 with
And the second negative input end 2IN- connections of operational amplifier chip U2, the second end of the 7th resistance R7, the 19th capacitance C19
The second output terminal 2OUT of one end and operational amplifier chip U2 connect altogether, the second end ground connection of the 18th capacitance C18, ultrasonic wave
The second output terminal 2OUT of receiving sensor U2 is connect with the first end of the 5th resistance R5, the second end and the 6th of the 5th resistance R5
The first end of resistance R6 connects, and the second end of the 6th resistance R6 and the first end of the 14th resistance R14 are connect altogether as ultrasonic wave
The power end AMP_VCC50 of detection module 50, the first end of the 8th resistance R8 and the power end AMP_ of ultrasound examination module 50
VCC50 connections, the second end of the 8th resistance R8 are connect with the second end of the 9th resistance R9, and the second end of eleventh resistor R11 is made
For the sound wave input terminal US015_CON50 of ultrasound examination module 50, the second end and twelfth resistor of the 19th capacitance C19
The first end of R12 connects, the second end of twelfth resistor R12, the first end and operational amplifier chip of thirteenth resistor R13
The third negative input end 3IN- of U2 connects altogether, the third output end 3OUT of operational amplifier chip U2, the second of thirteenth resistor R13
End and the first end of the 17th resistance R17 connect altogether, the second end of the 14th resistance R14, the first end of the 15th resistance R15 with
And the third positive input terminal 3IN+ of operational amplifier chip U2 connects altogether, the first end of the 15th resistance R15, the 16th resistance R16
First end and the 4th positive input terminal 4IN+ of operational amplifier chip U2 connect altogether, the second end ground connection of the 16th resistance R16,
The 4th negative input end 4IN- of operational amplifier chip U2, the first of the first end of the 20th capacitance C20, the 19th resistance R19
The anode of end and the second diode D2 connect altogether, and the cathode of the second diode D2 is connect with the second end of the 17th resistance R17, the
The power end AMP_ of the second end of 20 capacitance C20 and the second end and ultrasound examination module 50 of the 19th resistance R19
4th output end 4OUT of VCC50 connections, operational amplifier chip U2 is connect with the first end of the 18th resistance R18, and the 18th
The second end of resistance R18 is connect with the control terminal of the 4th switching tube Q4, and the current output terminal ground connection of the 4th switching tube Q4, the 4th opens
The first end of the current input terminal, the 20th resistance R20 that close pipe Q4 connects the sound wave output end as ultrasound examination module 50 altogether
US015_INT50, the second end of the 20th resistance R20 are connect with the power end AMP_VCC50 of ultrasound examination module 50.
As an embodiment of the present invention, the signal of operational amplifier chip is LM324.
In the present embodiment, after ultrasound transmit sensor TX emits ultrasonic signal, ultrasonic signal encounters determinand
Body back reflection sound wave, output feedback signal is obtained to operational amplifier chip after ultrasonic receiver sensor RX receives sound wave
The distance between ultrasound transmit sensor TX and object under test information.
As an embodiment of the present invention, Fig. 6 is a kind of master of the wireless communication display circuit proposed in the embodiment of the present invention 6
The electrical block diagram for controlling module, as shown in fig. 6, main control module 20 includes：Singlechip chip U3, the 21st capacitance C21,
22nd capacitance C22, the 21st resistance R21, the 22nd resistance R22, the 23rd capacitance C23, the 24th capacitance
C24 and energy-storage units 201.In the present embodiment, the power end VCC of singlechip chip U3, energy-storage units 201 first end,
The first end of 21st capacitance C21 and the first end of the 22nd capacitance C22 connect the power supply electricity as main control module 20 altogether
Source input terminal VCC, the second end of the 21st capacitance C21 and the second end of the 22nd capacitance C22 connect altogether with ground, microcontroller
The energy-storage units control terminal BATT of chip U3 is connect with the control signal of energy-storage units 201, the first electricity of singlechip chip U3
Pressure detection signal input part SOLAR detects signal input part SOLAR, singlechip chip U3 as the first voltage of main control module 20
First voltage feedback signal output SOLAR_s of the first voltage feedback signal output SOLAR_PWM as main control module 20
Radio frequency chip power output ends of the radio frequency chip power output end RF_VCC of PWM, singlechip chip U3 as main control module 20
Clock signal output terminal U_SCKs of the clock signal output terminal U_SCK of RF_VCC, singlechip chip U3 as main control module 20,
First chip selection signal output end U_CSNs of the first chip selection signal output end U_CSN of singlechip chip U3 as main control module 20,
Second chip selection signal output end U_SDOs of the second chip selection signal output end U_SDO of singlechip chip U3 as main control module 20,
Ultrasonic power output terminals A MP_VCCs of the ultrasonic power output terminals A MP_VCC of singlechip chip U3 as main control module 20,
Sonic detection signal output ends of the sonic detection signal output end US015_INT of singlechip chip U3 as main control module 20
The sonic detection signal input part US015_CON of US015_INT, singlechip chip U3 believe as the sonic detection of main control module 20
The first pulse-width signal output end PWM_A of number input terminal US015_CON, singlechip chip U3 as main control module 20
The second pulse-width signal output end PWM_B of one pulse-width signal output end PWM_A, singlechip chip U3 is as master control mould
The ground terminal GND ground connection of second pulse-width signal output end PWM_B, singlechip chip U3 of block 20, singlechip chip U3's
First oscillator signal end XIN is connect with the first end of the 21st resistance R21, the second oscillator signal end of singlechip chip U3
XOUT is connect with the first end of the 22nd resistance R22, the second end of the 21st resistance R21, the first end of the second crystal oscillator Y2
And 23 the first end of capacitance C23 connect altogether, the second end of the 22nd resistance R22, the second end of the second crystal oscillator Y2 and
The first end of 24th capacitance C24 connects altogether, the second end of the second end of the 23rd capacitance C23 and 24 capacitance C24
It is connected to ground altogether.
As an embodiment of the present invention, the model MSG430G2553 of singlechip chip U3.
In the present embodiment, the reset terminal RST of singlechip chip U3 is connect with reset signal source, singlechip chip
The driving corresponding with the 40 of display module successively of the port P2.2, P2.3, P2.4, P2.5, P3.2, P3.3, P3.4 and P3.5
Interface is connect with driving electrodes.
As an embodiment of the present invention, the first voltage of main control module 20 detects signal input part SOLAR to opto-electronic conversion
The first voltage detection signal that module 10 exports is detected, if first voltage detection signal is higher than first voltage preset value,
First voltage feedback signal control photoelectric conversion module 10 is sent to photoelectric conversion module 10 and carries out energy acquisition, if first voltage
The voltage for detecting signal is less than second voltage preset value, then is closed in photoelectric conversion module 10 by first voltage feedback signal
First switch pipe M1 and second switch pipe M2.As an embodiment of the present invention, the second voltage preset value in the present embodiment can
Think 1.8V, i.e. for solar panel in 20-50lux, output voltage is less than 1.8V, the energy that solar panel is collected at this time
Amount is very weak, can not utilize, therefore closes the connection of solar panel and main control module.
When the first voltage signal of photoelectric conversion module output is more than the operating voltage of main control module, then opto-electronic conversion mould
Block is powered main control module, when the first voltage signal of photoelectric conversion module output is more than the voltage of energy-storage units 201,
It is then charged to energy-storage units 201 by the energy-storage units control terminal BATT of main control module 20, when photoelectric conversion module exports
First voltage signal when being more than 1.4 times of voltage of energy-storage units 201, then main control module 20 exports first voltage feedback signal
It controls photoelectric conversion module 10 and starts MPPT systems, the ceiling capacity for obtaining solar energy charges to energy-storage battery.
As an embodiment of the present invention, refering to Fig. 6, energy-storage units 201 include：Energy-storage battery and third switching tube M3；
First end of the anode of energy-storage battery as energy-storage units 201, the cathode of energy-storage battery are inputted with the electric current of third switching tube M3
The electric current of end connection, the control signal of the control terminal of third switching tube M3 as energy-storage units 201, third switching tube M3 exports
End ground connection.
As an embodiment of the present invention, third switching tube M3 is p-type metal-oxide-semiconductor, and the grid of p-type metal-oxide-semiconductor is third switching tube
The control terminal of M3, the source electrode of p-type metal-oxide-semiconductor are the current input terminal of third switching tube M3, and the drain electrode of p-type metal-oxide-semiconductor switchs for third
The current output terminal of pipe M3.
As an embodiment of the present invention, display module 40 includes：Display screen, and connect with main control module 20, it is used for root
The driving unit of corresponding information is shown according to second control signal driving display screen.
As an embodiment of the present invention, a kind of passive display board is proposed in the present embodiment, passive display board includes as above
State the wireless communication display circuit of any one embodiment and the shell for encapsulating the wireless communication display circuit.
The present invention provides a kind of wireless communication display circuit and passive display boards, and environment is acquired by photoelectric conversion module
In luminous energy, and convert light energy into electric energy and main control module and communication module be powered, main control module, which passes through, communicates mould
Block is interacted with host side and is communicated, and sends the second control to display module according to the first control signal of communication module input
Signal, display module show corresponding information according to second control signal, realize the information update of display board, solve existing
Display board need external power supply or use battery powered, lead to the restricted problem of display board use scope.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (10)
1. a kind of wireless communication display circuit is wirelessly connected, which is characterized in that the wireless communication display circuit packet with host side
It includes：
For converting the optical signal of acquisition to electric signal, and to the opto-electronic conversion for wirelessly communicating display circuit and being powered
Module；
It is connect with the photoelectric conversion module, the communication module for being communicated with the host side；
The display module shown for the information to reception；And
It is connect with the photoelectric conversion module, the display module and the communication module, for according to the communication module
The first control signal of the host side output is received, and the first control signal is converted into second control signal transmission
To the display module, so that the main control module that the display module shows described information.
2. wireless communication display circuit as described in claim 1, which is characterized in that the wireless communication display circuit also wraps
It includes：
It is connect with the photoelectric conversion module and the main control module, for detecting ultrasound transmit sensor and object to be detected
The distance between body, and the ultrasound examination module for detecting signal is sent to the main control module.
3. wireless communication display circuit as described in claim 1, which is characterized in that the first voltage of the photoelectric conversion module
The first voltage of detection signal output end and the main control module detects signal input part and connect, and the of the photoelectric conversion module
One voltage feedback signal input terminal is connect with the first voltage feedback signal output of the main control module, the opto-electronic conversion mould
The first voltage signal output end of block is connect with the power supply input terminal of the main control module；
The photoelectric conversion module includes：Solar panel, first switch pipe, second switch pipe, the first diode, the first electricity
Sense and the first capacitance；
The cathode output end of the solar panel is grounded, and the cathode output end of the solar panel is opened with described first
The current input terminal of pass pipe connects altogether detects signal output end, the first switch as the first voltage of the photoelectric conversion module
The control terminal of pipe and the control terminal of the second switch pipe connect the first voltage feedback signal as the photoelectric conversion module altogether
Input terminal, the current output terminal of the first switch pipe are connect with the current input terminal of the second switch pipe, and described second opens
Current output terminal, the cathode of first diode and the first end of first inductance for closing pipe connect altogether, and the described 1st
The plus earth of pole pipe, the second end of first inductance and the first end of first capacitance are connect altogether as the opto-electronic conversion
The first voltage signal output end of module, the second end ground connection of first capacitance.
4. as described in claim 1 wireless communication display circuit, which is characterized in that the first power end of the communication module with
The radio frequency chip power output end of the main control module connects, the second source end of the communication module and the opto-electronic conversion mould
The first voltage signal output end of block connects, and the clock signal input terminal of the communication module and the clock of the main control module are believed
The connection of number output end, the serial data end of the communication module are connect with the serial data end of the main control module, the communication
First chip selection signal input terminal of module is connect with the first chip selection signal output end of the main control module, the communication module
Second chip selection signal input terminal is connect with the second chip selection signal output end of the main control module；
The communication module includes：Radio frequency chip, the second capacitance, third capacitance, the 4th capacitance, the 5th capacitance, the 6th capacitance,
Seven capacitances, the 8th capacitance, the 9th capacitance, the 11st capacitance, the 12nd capacitance, the 13rd capacitance, the 14th capacitance, the 15th electricity
Appearance, the filtering of the 16th capacitance, the second inductance, third inductance, the 6th inductance, the 7th inductance, the 8th inductance, the 9th inductance, antenna
Unit, antenna and the first crystal oscillator；
The clock signal input terminal of the radio frequency chip and the first end of the 16th capacitance are connect altogether as the communication module
Clock signal input terminal, the serial data end of the radio frequency chip and the first end of the 15th capacitance are connect altogether as described
The serial data end of communication module, the first end of the first chip selection signal input terminal and the 14th capacitance of the radio frequency chip
The first chip selection signal input terminal as the communication module, the second chip selection signal input terminal of the radio frequency chip and institute are met altogether
The first end for stating the 13rd capacitance connects the second chip selection signal input terminal as the communication module altogether, the 13rd capacitance
The second of second end, the second end of the 14th capacitance, the second end of the 15th capacitance and the 16th capacitance
End connects is connected to the ground altogether, the first frequency signal output end of the radio frequency chip, the first end of first crystal oscillator and described
The first end of 12nd capacitance connects altogether, the first frequency signal input part of the radio frequency chip, first crystal oscillator second end
And the first end of the 11st capacitance connects altogether, the second end of the second end and the 12nd capacitance of the 11st capacitance
It is connected to ground altogether, the ground terminal of the radio frequency chip is connected to ground, the first power end of the radio frequency chip, second capacitance
First end connects the first power end as the communication module, the second end of second capacitance, the of the radio frequency chip altogether
The first end of one ground terminal, the second ground terminal of the radio frequency chip and the third capacitance is connected to ground, the third electricity altogether
The second end of appearance and the second source end of the radio frequency chip connect the second source end as the communication module, the radio frequency altogether
First differential signal input of chip, the first end of the 7th capacitance, the first end of the 8th inductance and described
The first end of six inductance connects altogether, the second end ground connection of the 7th capacitance, the second differential signal input of the radio frequency chip,
Second end, the first end of the 7th inductance and the first end of the 9th capacitance of 8th inductance connect altogether, and described
The second ends of seven inductance is grounded, the aerial signal input terminal of the radio frequency chip, the first end of the 9th inductance and described
The first end of 6th capacitance connects altogether, the second end of the 9th inductance, the first end of the 4th capacitance and the 5th electricity
The first end of appearance connects the second source end as the communication module, the second end of the 4th capacitance and the 5th electricity altogether
The second end of appearance is connected to ground altogether, and the second end of the 6th capacitance is connect with the first end of second inductance, second electricity
The first end of the second end of sense, the first end of the 8th capacitance and the third inductance connects altogether, and the of the third inductance
Two ends, the second end of the 6th inductance, the first end of the second end of the 9th capacitance and the antenna filter unit are total
It connects, the second end of the antenna filter unit is connect with the antenna.
5. wireless communication display circuit as claimed in claim 4, which is characterized in that the antenna filter unit includes：4th
Inductance, the 5th inductance and the tenth capacitance；
The first end of 4th inductance is as the first end of the antenna filter unit, the second end of the 4th inductance, institute
The first end of the first end and the tenth capacitance of stating the 5th inductance connects altogether, the second end ground connection of the tenth capacitance, described
Second end of the second end of 5th inductance as the antenna filter unit.
6. wireless communication display circuit as claimed in claim 2, which is characterized in that the power end of the ultrasound examination module
It is connect with the ultrasonic power output end of the main control module, sound wave input terminal and the master control of the ultrasound examination module
The sonic detection signal output end of module connects, the sound of the sound wave output end and the main control module of the ultrasound examination module
Wave detects signal input part connection, the first pulse-width signal input terminal and the main control module of the ultrasound examination module
The first pulse-width signal output end connection, the second pulse-width signal input terminal of the ultrasound examination module with it is described
Second pulse-width signal output end of main control module connects；
The ultrasound examination module includes：Ultrasound transmit sensor, ultrasonic receiver sensor, operational amplifier chip,
First resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the 9th
Resistance, the tenth resistance, eleventh resistor, twelfth resistor, thirteenth resistor, the 14th resistance, the 15th resistance, the 16th electricity
Resistance, the 17th resistance, the 18th resistance, the 19th resistance, the 20th resistance, the 18th capacitance, the 19th capacitance and second
Diode；
First pulse-width signal of the first input end of the ultrasound transmit sensor as the ultrasound examination module
Second input terminal of input terminal, the ultrasound transmit sensor is believed as the second pulsewidth modulation of the ultrasound examination module
Number input terminal, the first output end of the ultrasonic receiver sensor are connect with the first end of the first resistor, and described first
The second end of resistance, the first end of the second resistance, the first end of the 3rd resistor and the operational amplifier chip
The first negative input end connect altogether, the second end of the second resistance, the second end of the 3rd resistor, the 4th resistance
First output end of one end and the operational amplifier chip connects altogether, first end and the operation amplifier of the tenth resistance
First positive input terminal of device chip connects, the second end ground connection of the tenth resistance, the first end of the 9th resistance, described the
Second positive input terminal of the first end of 18 capacitances, the first end of the eleventh resistor and the operational amplifier chip is total
Connect, the second end of the 4th resistance, the first end of the 7th resistance and the operational amplifier chip it is second negative defeated
Enter end connection, the second end of the 7th resistance, the first end of the 19th capacitance and the operational amplifier chip
Second output terminal connects altogether, the second end of the 18th capacitance ground connection, the second output terminal of the ultrasonic receiver sensor with
The first end of 5th resistance connects, and the second end of the 5th resistance is connect with the first end of the 6th resistance, described
The second end of 6th resistance and the first end of the 14th resistance connect the power end as the ultrasound examination module altogether,
The first end of 8th resistance is connect with the power end of the ultrasound examination module, the second end of the 8th resistance and institute
The second end connection of the 9th resistance is stated, the second end of the eleventh resistor is inputted as the sound wave of the ultrasound examination module
End, the second end of the 19th capacitance are connect with the first end of the twelfth resistor, the second end of the twelfth resistor,
The third negative input end of the first end of the thirteenth resistor and the operational amplifier chip connects altogether, the operational amplifier
The first end of the third output end of chip, the second end of the thirteenth resistor and the 17th resistance connects altogether, and described
The third positive input terminal of the second end of 14 resistance, the first end of the 15th resistance and the operational amplifier chip is total
Connect, the first end of the 15th resistance, the first end of the 16th resistance and the operational amplifier chip the 4th
Positive input terminal connects altogether, the second end of the 16th resistance ground connection, the 4th negative input end of the operational amplifier chip, described
The anode of the first end of 20th capacitance, the first end of the 19th resistance and second diode connects altogether, and described
The cathode of two diodes is connect with the second end of the 17th resistance, the second end and the described tenth of the 20th capacitance
The second end of nine resistance is connect with the power end of the ultrasound examination module, the 4th output end of the operational amplifier chip
It is connect with the first end of the 18th resistance, the second end of the 18th resistance connects with the control terminal of the 4th switching tube
It connects, the current output terminal of the 4th switching tube ground connection, the current input terminal of the 4th switching tube, the 20th resistance
First end connects the sound wave output end as the ultrasound examination module, second end and the ultrasound of the 20th resistance altogether
The power end of wave detection module connects.
7. wireless communication display circuit as claimed in claim 2, which is characterized in that the main control module includes：Monolithic movement
Piece, the 21st capacitance, the 22nd capacitance, the 21st resistance, the 22nd resistance, the 23rd capacitance, the 24th
Capacitance and energy-storage units；
The power end of the singlechip chip, the first end of the energy-storage units, the first end of the 21st capacitance and
The first end of 22nd capacitance connects the power supply input terminal as the main control module, the 21st capacitance altogether
Second end and the 22nd capacitance second end with ground connect altogether, the energy-storage units control terminal of the singlechip chip with
The control signal of the energy-storage units connects, and the first voltage of the singlechip chip detects signal input part as the master
The first voltage for controlling module detects signal input part, described in the first voltage feedback signal output of the singlechip chip is used as
The first voltage feedback signal output of main control module, the radio frequency chip power output end of the singlechip chip is as the master
Control the radio frequency chip power output end of module, the clock signal output terminal of the singlechip chip as the main control module when
Clock signal output end, the first chip selection signal of the first chip selection signal output end of the singlechip chip as the main control module
Second chip selection signal output end of output end, the singlechip chip is exported as the second chip selection signal of the main control module
End, the ultrasonic power output end of the ultrasonic power output end of the singlechip chip as the main control module, the list
Sonic detection signal output end of the sonic detection signal output end of piece movement piece as the main control module, the monolithic movement
Sonic detection signal input part of the sonic detection signal input part of piece as the main control module, the of the singlechip chip
First pulse-width signal output end of the one pulse-width signal output end as the main control module, the singlechip chip
Second pulse-width signal output end of the second pulse-width signal output end as the main control module, the singlechip chip
Ground terminal ground connection, the first oscillator signal end of the singlechip chip connect with the first end of the 21st resistance, institute
The the second oscillator signal end for stating singlechip chip is connect with the first end of the 22nd resistance, the 21st resistance
The first end of second end, the first end of second crystal oscillator and 23 capacitance connects altogether, the 22nd resistance
The first end of second end, the second end of second crystal oscillator and the 24th capacitance connects altogether, the 23rd capacitance
Second end and the second end of 24 capacitance be connected to ground altogether.
8. wireless communication display circuit as claimed in claim 7, which is characterized in that the energy-storage units include：Energy-storage battery
And third switching tube；
First end of the anode of the energy-storage battery as the energy-storage units, the cathode of the energy-storage battery are opened with the third
The current input terminal connection of pipe is closed, the control signal of the control terminal of the third switching tube as the energy-storage units is described
The current output terminal of third switching tube is grounded.
9. wireless communication display circuit as claimed in claim 2, which is characterized in that the display module includes：Display screen, with
And
It is connect with the main control module, for driving the display screen to show corresponding information according to the second control signal
Driving unit.
10. a kind of passive display board, which is characterized in that the passive display board includes such as claim 1-9 any one of them
Wirelessly communicate display circuit and the shell for encapsulating the wireless communication display circuit.
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|---|---|---|---|
| CN201810689447.2A CN108682315B (en) | 2018-06-28 | 2018-06-28 | Wireless communication display circuit and passive display board |
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|---|---|---|---|
| CN201810689447.2A CN108682315B (en) | 2018-06-28 | 2018-06-28 | Wireless communication display circuit and passive display board |
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| CN108682315B CN108682315B (en) | 2020-08-14 |
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