CN110544451A - Control system of multifunctional advertising machine - Google Patents
Control system of multifunctional advertising machine Download PDFInfo
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- CN110544451A CN110544451A CN201910917241.5A CN201910917241A CN110544451A CN 110544451 A CN110544451 A CN 110544451A CN 201910917241 A CN201910917241 A CN 201910917241A CN 110544451 A CN110544451 A CN 110544451A
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- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 12
- 230000002093 peripheral effect Effects 0.000 claims abstract description 9
- 238000007600 charging Methods 0.000 claims description 79
- 239000003990 capacitor Substances 0.000 claims description 66
- 230000005669 field effect Effects 0.000 claims description 27
- 230000000087 stabilizing effect Effects 0.000 claims description 24
- 230000008054 signal transmission Effects 0.000 claims description 11
- 230000006870 function Effects 0.000 claims description 7
- 101000746134 Homo sapiens DNA endonuclease RBBP8 Proteins 0.000 claims description 3
- 101000969031 Homo sapiens Nuclear protein 1 Proteins 0.000 claims description 3
- 102100021133 Nuclear protein 1 Human genes 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 238000010280 constant potential charging Methods 0.000 description 1
- 238000010277 constant-current charging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F27/00—Combined visual and audible advertising or displaying, e.g. for public address
- G09F27/004—Displays including an emergency or alarm message
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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
- G09G3/34—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 by control of light from an independent source
- G09G3/36—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 by control of light from an independent source using liquid crystals
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Computer Hardware Design (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention relates to a control system of a multifunctional advertising machine, which comprises a control chip, photographic equipment, liquid crystal display equipment, a power supply circuit and an emergency lighting module, wherein the power supply circuit is used for supplying electric energy to the control chip and the emergency lighting module; the control chip is used for coordinating and processing the peripheral circuit; the photographic equipment is used for shooting video images; the liquid crystal display device is used for playing the video images stored in the control chip; the emergency lighting module is used for providing a lighting function through emergency power supply when power is off; the photographic equipment is connected with the TS port of the control chip, the liquid crystal display equipment is connected with the LCDCO port of the control chip, the power Supply circuit is connected with the emergency lighting module, and the power Supply circuit is connected with the PWR Supply port of the control chip. The scheme increases a functional device which is beneficial to rescue, can better realize the lighting function, enables rescue workers to communicate with trapped people in real time, and increases the market competitiveness.
Description
Technical Field
the invention relates to the field of advertising devices, in particular to a control system of a multifunctional advertising machine.
Background
nowadays, with the increase of high-rise buildings, the use amount of the elevator is increased more and more, a plurality of merchants also smell commercial opportunities, put commodity advertisements in the elevator through the advertising machine, and the advertisement of the commodities is played on the display screen, so that the commodity popularization effect is achieved, and the elevator is a very practical marketing means. When the elevator is in an emergency situation, an external circuit of the elevator is cut off, an alarm system arranged in the elevator can be temporarily in a failure state, and at the moment, external rescue workers cannot know the actual situation of people trapped in the elevator, so that the rescue is very unfavorable. In current advertisement machine, although be provided with emergency power supply unit, reaction time is slower, and the very first time of the way is thrown light on, and current advertisement machine can't shoot stranded environment simultaneously, and outside rescue personnel can't contact with stranded personnel through looking screen communication equipment to formulate more perfect rescue plan, probably lead to the emergence of secondary accident or more serious consequence.
Disclosure of Invention
the invention provides a control system of a multifunctional advertising machine, and aims to solve the problems that the existing advertising machine cannot realize the lighting function at the first time, and meanwhile, rescue workers cannot observe and know the specific conditions of trapped people.
The invention provides a control system of a multifunctional advertising machine, which comprises a control chip, photographic equipment, liquid crystal display equipment, a power supply circuit and an emergency lighting module, wherein the power supply circuit is used for supplying electric energy to the control chip and the emergency lighting module; the control chip is used for coordinating and processing the peripheral circuit; the photographic equipment is used for shooting video images; the liquid crystal display device is used for playing the video images stored in the control chip; the emergency lighting module is used for providing a lighting function through emergency power supply when power is off; the photographic equipment is connected with the TS port of the control chip, the liquid crystal display equipment is connected with the LCDCO port of the control chip, the power Supply circuit is connected with the emergency lighting module, and the power Supply circuit is connected with the PWR Supply port of the control chip.
as a further improvement of the present invention, the emergency lighting module includes an emergency lighting circuit and a power management integrated circuit, the emergency lighting circuit is configured to receive the electric energy provided by the power supply circuit for emergency lighting in case of emergency; the power management integrated circuit is used for managing power equipment of the control chip;
And a pin 1 of the output end of the power Supply circuit is connected with the input end of the power management integrated circuit, a pin 2 of the output end of the power Supply circuit is connected with a pin 2 of the input end of the emergency lighting circuit, and the output end of the power management integrated circuit is connected with a PWR Supply port of the control chip.
As a further improvement of the present invention, the power supply circuit includes a charging circuit and a battery pack circuit, the charging circuit is used for supplying power to the control chip and charging the battery pack circuit; the battery pack circuit is used for supplying power to the control chip and the emergency lighting circuit in an emergency; one end of the charging circuit is connected with 2 pins of the power interface, 1 pin of the power interface is grounded, the other end of the charging circuit is connected with the output end of the power supply circuit, and the battery pack circuit is connected with the output end of the power supply circuit.
as a further improvement of the invention, the charging circuit comprises a charging chip, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a resistor RCS, a capacitor C22, a capacitor C23, a capacitor C3, a capacitor C4, a capacitor C6, a resistor RT, an inductor L1, a light emitting diode D3, a light emitting diode D4, a voltage stabilizing diode M1, a voltage stabilizing diode D1, a voltage stabilizing diode D2, a field effect transistor Q3 and a field effect transistor Q2,
one end of the capacitor C22 is connected with the 2 pin of the power interface, and the other end of the capacitor C22 is connected with the VG pin of the charging chip;
The PGND pin and the GND pin of the charging chip are grounded;
the CHRG pin of the charging chip is connected with the cathode of the light-emitting secondary light D4, the anode of the light-emitting diode D4 is connected with one end of the resistor R2, and the other end of the resistor R2 is connected with the 1 pin of the power interface;
the DOWN pin of the charging chip is connected with the cathode of the light-emitting diode D3, the anode of the light-emitting diode D3 is connected with one end of the resistor R1, and the other end of the resistor R1 is connected with the 1 pin of the power interface;
the TEMP pin of the charging chip is connected with one end of the resistor RT, and the other end of the resistor RT is grounded;
the EDC pin of the charging chip is connected with one end of the resistor R3, and the other end of the resistor R3 is grounded;
a COM1 pin of the charging chip is connected with one end of the capacitor C3, and the other end of the capacitor C3 is grounded;
A COM2 pin of the charging chip is connected with one end of the resistor R4, the other end of the resistor R4 is connected with one end of the capacitor C4, and the other end of the capacitor C4 is grounded;
the TEST pin of the charging chip is connected with one end of the resistor R6, and the other end of the resistor R6 is grounded;
the COM3 pin of the charging chip is connected with one end of the resistor R7, the COM3 pin of the charging chip is connected with one end of the capacitor C23, the other end of the capacitor C23 is grounded, the other end of the resistor R7 is connected with one end of the resistor RCS, the other end of the resistor RCS is connected with one end of the inductor L1, the other end of the inductor L1 is connected with the cathode of the voltage stabilizing diode D1 and the cathode of the voltage stabilizing diode D2, the anode of the voltage stabilizing diode D2 is grounded, the anode of the voltage stabilizing diode D1 is connected with the source of the field effect transistor Q3, the drain of the field effect transistor Q3 is connected with the 1 pin of the power interface, the gate of the field effect transistor Q3 is connected with the DRV pin of the charging chip, the cathode of the voltage stabilizing diode M1 is connected with the drain electrode of the field effect transistor Q3, and the anode of the voltage stabilizing diode M1 is connected with the source electrode of the field effect transistor Q3;
the CSP pin of the charging chip is connected with one end of the inductor L1;
a BAT pin of the charging chip is connected with one end of the resistor RCS;
The VCC stitch of the charging chip is connected to 1 stitch of the power interface, one end of the resistor R8 is connected to the VCC stitch of the charging chip, and the other end of the resistor R8 is grounded.
As a further improvement of the present invention, the battery pack circuit includes a battery, a zener diode M2 and a fet Q2, a 2 pin of the battery is grounded, a 2 pin of the battery is connected to a 1 pin of the output terminal of the power supply circuit, a 1 pin of the battery is connected to the drain of the fet Q2, a source of the fet Q2 is connected to a 2 pin of the output terminal of the power supply circuit, a gate of the fet Q2 is connected to one end of the resistor R8, a cathode of the zener diode M2 is connected to the source of the fet Q2, and an anode of the zener diode M2 is connected to the drain of the fet Q2.
As a further improvement of the present invention, the power supply circuit further includes a filter circuit, the filter circuit includes a capacitor C1, a capacitor C2, and a capacitor C6, one end of the capacitor C1 is connected to one end of the capacitor C2 and grounded, the other end of the capacitor C1 is connected to the other end of the capacitor C2, the other end of the capacitor C1 is connected to the 2-pin of the power interface, and the other end of the capacitor C2 is connected to the 2-pin of the power interface.
as a further improvement of the present invention, the emergency lighting circuit includes a photo resistor RL, a transistor Q1, a diode D1, a light emitting diode D2, a light emitting diode D5, a sliding rheostat R1, a relay K1 and a switch K1, the relay K1 is linked with the switch K1, a 1 pin of an input end of the emergency lighting circuit is grounded, a 2 pin of an input end of the emergency lighting module is connected with one end of the photo resistor RL and one end of the relay K1, the other end of the photo resistor RL is connected with one end of the sliding rheostat R1, the other end of the sliding rheostat R1 is grounded, a sliding end of the sliding rheostat R1 is connected with a base of the transistor Q1, an emitter of the transistor Q1 is grounded, a collector of the transistor Q1 is connected with a cathode of the light emitting diode D2, an anode of the light emitting diode D2 is connected with a 2 pin of the power interface, the cathode of the light-emitting diode D2 is connected with the other end of the relay K1, the cathode of the diode D1 is connected with one end of the relay K1, the anode of the diode D1 is connected with the other end of the relay K1, one end of the switch K1 is connected with a pin 1 of the battery, the other end of the switch K1 is connected with the anode of the light-emitting diode D5, and the cathode of the light-emitting diode D5 is grounded.
As a further improvement of the present invention, the control system of the multifunctional advertisement player further comprises an audio input/output module, the audio input/output module comprises an audio processing chip, an audio input device and an audio output device, and the audio input device is used for receiving audio from the multifunctional advertisement player; the audio output device is used for playing advertisement sound and the audio of external personnel, and the audio processing chip is used for clearly processing the audio transmitted by the audio input device and the audio output device; the audio input device and the audio output device are connected with an audio processing chip, and the audio processing chip is connected with an I2S port and an I2C4 port of the control chip.
As a further improvement of the present invention, the control system of the multifunctional advertisement player further comprises a signal transmission module and a clock circuit, wherein the signal transmission module is used for receiving a signal sent to the multifunctional advertisement player from the outside or sending a signal from the multifunctional advertisement player to the outside; the clock circuit is used for displaying the current time and setting the working time of the multifunctional advertising machine; the signal transmission module comprises a network interface, an RJ-45 communication interface and WIFI equipment, one end of the network interface is connected with the RJ-45 communication interface, the other end of the network interface is connected with a GMAC port of the control chip, the WIFI equipment is connected with an SDI 00 port and an UARTO port of the control chip, the clock circuit is connected with a CLKIN port of the control chip, and the clock circuit is also connected with the WIFI equipment.
As a further improvement of the present invention, the control system of the multifunctional advertisement player further comprises a storage module, wherein the storage module is used for storing information transmitted by a peripheral circuit of the control chip; the storage module comprises a memory card, an SD card and a flash memory card, and when the SD card is used, the SD card is connected with the SDMMCO port of the control chip; when the flash memory card is used, the flash memory card is connected with a FLASHO port of the control chip; when the memory card is used, the memory card is connected with the memory interface of the control chip.
the invention has the beneficial effects that: the circuit of this scheme makes the advertisement machine increase the function devices that video shooting, communications facilities etc. are favorable to the rescue, can realize the illumination function simultaneously better for outside rescue personnel can communicate and exchange with stranded personnel in real time, know stranded personnel's particular case, take appropriate rescue measures, also increase the market competition of product simultaneously.
Drawings
FIG. 1 is a diagram of the relationship between modules of the present invention.
Fig. 2 is an electrical schematic diagram of the control chip of the present invention.
Fig. 3 is an electrical schematic diagram of the power supply circuit of the present invention.
fig. 4 is an electrical schematic of the emergency lighting circuit of the present invention.
Detailed Description
in order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
as shown in fig. 1, the present invention provides a control system of a multifunctional advertisement player, which includes a control chip, a camera device, a liquid crystal display device, a power supply circuit and an emergency lighting module, wherein the power supply circuit is used for supplying electric energy to the control chip and the emergency lighting circuit; the control chip is used for coordinating and processing the peripheral circuit; the photographic equipment is used for shooting video images; the liquid crystal display device is used for playing the video images stored in the control chip; the emergency lighting module is used for providing a lighting function through emergency power supply when power is off; the photographic equipment is connected with the TS port of the control chip, the liquid crystal display equipment is connected with the LCDCO port of the control chip, the power Supply circuit is connected with the emergency lighting module, and the power Supply circuit is connected with the PWR Supply port of the control chip.
preferably, the emergency lighting module comprises an emergency lighting circuit and a power management integrated circuit, and the emergency lighting circuit is used for receiving the electric energy provided by the power supply circuit for emergency lighting in an emergency; the power management integrated circuit is used for managing power equipment of the control chip;
And a pin 1 of the output end of the power Supply circuit is connected with the input end of the power management integrated circuit, a pin 2 of the output end of the power Supply circuit is connected with a pin 2 of the input end of the emergency lighting circuit, and the output end of the power management integrated circuit is connected with a PWR Supply port of the control chip.
Preferably, the power supply circuit comprises a charging circuit and a battery pack circuit, and the charging circuit is used for supplying power to the control chip and charging the battery pack circuit; the battery pack circuit is used for supplying power to the control chip and the emergency lighting circuit in an emergency; one end of the charging circuit is connected with 2 pins of the power interface, 1 pin of the power interface is grounded, the other end of the charging circuit is connected with the output end of the power supply circuit, and the battery pack circuit is connected with the output end of the power supply circuit.
Preferably, the charging circuit comprises a charging chip, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a resistor RCS, a capacitor C22, a capacitor C23, a capacitor C3, a capacitor C4, a capacitor C6, a resistor RT, an inductor L1, a light emitting diode D3, a light emitting diode D4, a voltage stabilizing diode M1, a voltage stabilizing diode D1, a voltage stabilizing diode D2, a field effect transistor Q3 and a field effect transistor Q2,
One end of the capacitor C22 is connected with the 2 pin of the power interface, and the other end of the capacitor C22 is connected with the VG pin of the charging chip;
The PGND pin and the GND pin of the charging chip are grounded;
The CHRG pin of the charging chip is connected with the cathode of the light-emitting secondary light D4, the anode of the light-emitting diode D4 is connected with one end of the resistor R2, and the other end of the resistor R2 is connected with the 1 pin of the power interface;
the DOWN pin of the charging chip is connected with the cathode of the light-emitting diode D3, the anode of the light-emitting diode D3 is connected with one end of the resistor R1, and the other end of the resistor R1 is connected with the 1 pin of the power interface;
The TEMP pin of the charging chip is connected with one end of the resistor RT, and the other end of the resistor RT is grounded;
the EDC pin of the charging chip is connected with one end of the resistor R3, and the other end of the resistor R3 is grounded;
A COM1 pin of the charging chip is connected with one end of the capacitor C3, and the other end of the capacitor C3 is grounded;
A COM2 pin of the charging chip is connected with one end of the resistor R4, the other end of the resistor R4 is connected with one end of the capacitor C4, and the other end of the capacitor C4 is grounded;
The TEST pin of the charging chip is connected with one end of the resistor R6, and the other end of the resistor R6 is grounded;
The COM3 pin of the charging chip is connected with one end of the resistor R7, the COM3 pin of the charging chip is connected with one end of the capacitor C23, the other end of the capacitor C23 is grounded, the other end of the resistor R7 is connected with one end of the resistor RCS, the other end of the resistor RCS is connected with one end of the inductor L1, the other end of the inductor L1 is connected with the cathode of the voltage stabilizing diode D1 and the cathode of the voltage stabilizing diode D2, the anode of the voltage stabilizing diode D2 is grounded, the anode of the voltage stabilizing diode D1 is connected with the source of the field effect transistor Q3, the drain of the field effect transistor Q3 is connected with the 1 pin of the power interface, the gate of the field effect transistor Q3 is connected with the DRV pin of the charging chip, the cathode of the voltage stabilizing diode M1 is connected with the drain electrode of the field effect transistor Q3, and the anode of the voltage stabilizing diode M1 is connected with the source electrode of the field effect transistor Q3;
the CSP pin of the charging chip is connected with one end of the inductor L1;
a BAT pin of the charging chip is connected with one end of the resistor RCS;
The VCC stitch of the charging chip is connected to 1 stitch of the power interface, one end of the resistor R8 is connected to the VCC stitch of the charging chip, and the other end of the resistor R8 is grounded.
Preferably, the battery pack circuit comprises a battery, a zener diode M2 and a fet Q2, wherein 2 pins of the battery are grounded, 2 pins of the battery are connected with 1 pin of the output end of the power supply circuit, 1 pin of the battery is connected with the drain of the fet Q2, the source of the fet Q2 is connected with 2 pins of the output end of the power supply circuit, the gate of the fet Q2 is connected with one end of the resistor R8, the cathode of the zener diode M2 is connected with the source of the fet Q2, and the anode of the zener diode M2 is connected with the drain of the fet Q2.
Preferentially, the power supply circuit further comprises a filter circuit, the filter circuit comprises a capacitor C1, a capacitor C2 and a capacitor C6, one end of the capacitor C1 is connected with one end of the capacitor C2 and grounded, the other end of the capacitor C1 is connected with the other end of the capacitor C2, the other end of the capacitor C1 is connected with the 2 pins of the power interface, and the other end of the capacitor C2 is connected with the 2 pins of the power interface.
Preferably, the emergency lighting circuit comprises a photoresistor RL, a transistor Q1, a diode D1, a light emitting diode D2, a light emitting diode D5, a sliding rheostat R1, a relay K1 and a switch K1, the relay K1 is linked with the switch K1, a 1 pin at the input end of the emergency lighting circuit is grounded, a 2 pin at the input end of the emergency lighting module is connected with one end of the photoresistor RL and one end of the relay K1, the other end of the photoresistor RL is connected with one end of the sliding rheostat R1, the other end of the sliding rheostat R1 is grounded, a sliding end of the sliding rheostat R1 is connected with a base of the transistor Q1, an emitter of the transistor Q1 is grounded, a collector of the transistor Q1 is connected with a cathode of the light emitting diode D2, an anode of the light emitting diode D2 is connected with a 2 pin of the power interface, the cathode of the light-emitting diode D2 is connected with the other end of the relay K1, the cathode of the diode D1 is connected with one end of the relay K1, the anode of the diode D1 is connected with the other end of the relay K1, one end of the switch K1 is connected with a pin 1 of the battery, the other end of the switch K1 is connected with the anode of the light-emitting diode D5, and the cathode of the light-emitting diode D5 is grounded.
Preferably, the control system of the multifunctional advertisement player further comprises an audio input/output module, the audio input/output module comprises an audio processing chip, an audio input device and an audio output device, and the audio input device is used for receiving audio from the multifunctional advertisement player; the audio output device is used for playing advertisement sound and the audio of external personnel, and the audio processing chip is used for clearly processing the audio transmitted by the audio input device and the audio output device; the audio input device and the audio output device are connected with an audio processing chip, and the audio processing chip is connected with an I2S port and an I2C4 port of the control chip.
preferably, the control system of the multifunctional advertising machine further comprises a signal transmission module and a clock circuit, wherein the signal transmission module is used for receiving a signal sent to the multifunctional advertising machine from the outside or sending the signal from the multifunctional advertising machine to the outside; the clock circuit is used for displaying the current time and setting the working time of the multifunctional advertising machine; the signal transmission module comprises a network interface, an RJ-45 communication interface and WIFI equipment, one end of the network interface is connected with the RJ-45 communication interface, the other end of the network interface is connected with a GMAC port of the control chip, the WIFI equipment is connected with an SDI 00 port and an UARTO port of the control chip, the clock circuit is connected with a CLKIN port of the control chip, and the clock circuit is also connected with the WIFI equipment.
preferably, the control system of the multifunctional advertising player further comprises a storage module, wherein the storage module is used for storing information transmitted by a peripheral circuit of the control chip; the storage module comprises a memory card, an SD card and a flash memory card, and when the SD card is used, the SD card is connected with the SDMMCO port of the control chip; when the flash memory card is used, the flash memory card is connected with a FLASHO port of the control chip; when the memory card is used, the memory card is connected with the memory interface of the control chip.
As shown in fig. 1 and 2, the control chip controls the peripheral function circuit, and the control chip supplies power through the power supply circuit to maintain the normal operation of the control chip. The power supply comprises a power interface and is characterized in that 1 pin of the power interface is grounded, 2 pins of the power interface are connected with 2 pins of an output end of a power supply circuit, 2 pins of the output end of the power supply circuit are connected with a power management integrated circuit, the power management integrated circuit is connected with an energy input end of a control chip, and therefore the control chip provides electric energy.
As shown in fig. 3, the power supply circuit further includes the battery pack circuit and a charging circuit, the pin 1 of the power interface is connected to the positive electrode of the battery through the charging circuit, the negative electrode of the battery is grounded, the charging circuit is arranged between the battery pack circuit and the power interface, and can ensure that the battery can be stably charged with constant current and constant voltage during charging, the charging chip adopts a CN3704 model, CN3704 is a lithium battery charging management integrated circuit in a PWM voltage reduction mode, has constant current and constant voltage charging modes, is very suitable for charging lithium batteries, when the charging circuit charges the battery, the light emitting diode D4 lights up, when the battery is charged, the light-emitting diode D4 is turned off to prove that the battery is charged, and the light-emitting diode D3 is turned on to indicate that the charging circuit works normally.
Therefore, the power supply circuit can charge the battery while supplying power to the control chip, and the battery can store enough power to maintain the operation of the equipment under the condition of power failure. When the elevator is in an emergency condition and power is cut off suddenly, the battery pack circuit is disconnected with the charging circuit, at the moment, the output end of the power supply circuit is connected with the battery pack circuit, the battery releases electric energy and provides the electric energy for the control chip, and the control chip can continue to work.
as shown in fig. 1 and 4, when the elevator is normally operated, the lcd device plays the advertisement content stored in the memory module, and the audio output device plays the sound, in the emergency lighting circuit, since the light in the elevator is normally operated, the resistance value of the photoresistor RL is reduced, so the relay K1 is short-circuited, the switch K1 is not closed, the led D5 as an emergency light is not lit, and the led D2 is normally powered by the power interface and connected to GND through the triode Q1, so the led D2 is lit. When the elevator has a fault and has power failure, the electric energy of the emergency lighting circuit is provided by the battery pack circuit, the light-emitting diode D2 is cut off and is not lightened in the reverse direction, the brightness in the elevator is reduced at the moment, the resistance value of the photosensitive resistor RL is increased due to the reduction of the brightness, the relay K1 is switched on, the switch K1 linked with the relay K1 is switched on, and the battery provides the electric energy to enable the light-emitting diode D5 to be switched on and emit light so as to provide emergency power supply.
as an embodiment of the invention, the control chip is preferably an RK3288 chip which can well coordinate various peripheral circuits so that the multifunctional advertising machine can work normally. The camera device is connected with the control chip, and the control chip can control the camera device to shoot the conditions in the elevator, so that personal safety and the current situation of trapped people can be better confirmed, and appropriate rescue measures can be taken. The signal transmission module can realize signal communication between the interior of the elevator and the outside, and an external manager can control the multifunctional advertising machine through the signal transmission module. The multifunctional advertising machine can be in wireless communication with the outside through the WIFI equipment, and can also be connected with a computer through the network interface and the RJ-45 communication interface, so that wired communication is realized.
the audio input and output module is used for communication between people in the elevator and external people, the audio output device is used for playing advertising sound and audio of external rescue or management personnel, the people in the elevator can communicate with the external people through the audio input device, the audio transmitted in the audio input device and the audio output device is processed by the audio processing chip, so that the tone quality is clearer, and preferably, the audio processing chip adopts an ES8388E chip. The clock circuit is used for displaying the current time and setting the working time of the multifunctional advertising machine. Wherein the data information in the multifunctional advertising player is stored in the storage module.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (10)
1. The control system of the multifunctional advertising player is characterized by comprising a control chip, photographic equipment, liquid crystal display equipment, a power supply circuit and an emergency lighting module, wherein the power supply circuit is used for supplying electric energy to the control chip and the emergency lighting circuit; the control chip is used for coordinating and processing the peripheral circuit; the photographic equipment is used for shooting video images; the liquid crystal display device is used for playing the video images stored in the control chip; the emergency lighting module is used for providing a lighting function through emergency power supply when power is off; the photographic equipment is connected with the TS port of the control chip, the liquid crystal display equipment is connected with the LCDCO port of the control chip, the power Supply circuit is connected with the emergency lighting module, and the power Supply circuit is connected with the PWR Supply port of the control chip.
2. the control system of claim 1, wherein the emergency lighting module comprises an emergency lighting circuit and a power management integrated circuit, the emergency lighting circuit is configured to receive the power from the power supply circuit for emergency lighting in case of emergency; the power management integrated circuit is used for managing power equipment of the control chip;
And a pin 1 of the output end of the power Supply circuit is connected with the input end of the power management integrated circuit, a pin 2 of the output end of the power Supply circuit is connected with a pin 2 of the input end of the emergency lighting circuit, and the output end of the power management integrated circuit is connected with a PWR Supply port of the control chip.
3. The control system of claim 2, wherein the power supply circuit comprises a charging circuit and a battery circuit, the charging circuit is used for supplying power to the control chip and charging the battery circuit; the battery pack circuit is used for supplying power to the control chip and the emergency lighting circuit in an emergency; one end of the charging circuit is connected with 2 pins of the power interface, 1 pin of the power interface is grounded, the other end of the charging circuit is connected with the output end of the power supply circuit, and the battery pack circuit is connected with the output end of the power supply circuit.
4. The control system of claim 3, wherein the charging circuit comprises a charging chip, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a resistor RCS, a capacitor C22, a capacitor C23, a capacitor C3, a capacitor C4, a capacitor C6, a resistor RT, an inductor L1, a light emitting diode D3, a light emitting diode D4, a voltage regulator diode M1, a voltage regulator diode D1, a voltage regulator diode D2, a field effect transistor Q3 and a field effect transistor Q2,
one end of the capacitor C22 is connected with the 2 pin of the power interface, and the other end of the capacitor C22 is connected with the VG pin of the charging chip;
The PGND pin and the GND pin of the charging chip are grounded;
The CHRG pin of the charging chip is connected with the cathode of the light-emitting secondary light D4, the anode of the light-emitting diode D4 is connected with one end of the resistor R2, and the other end of the resistor R2 is connected with the 1 pin of the power interface;
the DOWN pin of the charging chip is connected with the cathode of the light-emitting diode D3, the anode of the light-emitting diode D3 is connected with one end of the resistor R1, and the other end of the resistor R1 is connected with the 1 pin of the power interface;
The TEMP pin of the charging chip is connected with one end of the resistor RT, and the other end of the resistor RT is grounded;
The EDC pin of the charging chip is connected with one end of the resistor R3, and the other end of the resistor R3 is grounded;
A COM1 pin of the charging chip is connected with one end of the capacitor C3, and the other end of the capacitor C3 is grounded;
a COM2 pin of the charging chip is connected with one end of the resistor R4, the other end of the resistor R4 is connected with one end of the capacitor C4, and the other end of the capacitor C4 is grounded;
the TEST pin of the charging chip is connected with one end of the resistor R6, and the other end of the resistor R6 is grounded;
The COM3 pin of the charging chip is connected with one end of the resistor R7, the COM3 pin of the charging chip is connected with one end of the capacitor C23, the other end of the capacitor C23 is grounded, the other end of the resistor R7 is connected with one end of the resistor RCS, the other end of the resistor RCS is connected with one end of the inductor L1, the other end of the inductor L1 is connected with the cathode of the voltage stabilizing diode D1 and the cathode of the voltage stabilizing diode D2, the anode of the voltage stabilizing diode D2 is grounded, the anode of the voltage stabilizing diode D1 is connected with the source of the field effect transistor Q3, the drain of the field effect transistor Q3 is connected with the 1 pin of the power interface, the gate of the field effect transistor Q3 is connected with the DRV pin of the charging chip, the cathode of the voltage stabilizing diode M1 is connected with the drain electrode of the field effect transistor Q3, and the anode of the voltage stabilizing diode M1 is connected with the source electrode of the field effect transistor Q3;
the CSP pin of the charging chip is connected with one end of the inductor L1;
a BAT pin of the charging chip is connected with one end of the resistor RCS;
The VCC stitch of the charging chip is connected to 1 stitch of the power interface, one end of the resistor R8 is connected to the VCC stitch of the charging chip, and the other end of the resistor R8 is grounded.
5. the control system of claim 4, wherein the battery pack circuit comprises a battery, a zener diode M2 and a field effect transistor Q2, a 2 pin of the battery is grounded, a 2 pin of the battery is connected with a 1 pin of the output terminal of the power supply circuit, a 1 pin of the battery is connected with the drain of the field effect transistor Q2, a source of the field effect transistor Q2 is connected with a 2 pin of the output terminal of the power supply circuit, a gate of the field effect transistor Q2 is connected with one end of the resistor R8, a cathode of the zener diode M2 is connected with a source of the field effect transistor Q2, and an anode of the zener diode M2 is connected with a drain of the field effect transistor Q2.
6. The control system of claim 5, wherein the power supply circuit further comprises a filter circuit, the filter circuit comprises a capacitor C1, a capacitor C2 and a capacitor C6, one end of the capacitor C1 is connected with one end of a capacitor C2 and is grounded, the other end of the capacitor C1 is connected with the other end of the capacitor C2, the other end of the capacitor C1 is connected with the 2-pin of the power interface, and the other end of the capacitor C2 is connected with the 2-pin of the power interface.
7. the control system of claim 6, wherein the emergency lighting circuit comprises a photo resistor RL, a transistor Q1, a diode D1, a light emitting diode D2, a light emitting diode D5, a sliding rheostat R1, a relay K1 and a switch K1, the relay K1 is linked with the switch K1, a 1 pin of an input end of the emergency lighting circuit is grounded, a 2 pin of an input end of the emergency lighting module is connected with one end of the photo resistor RL and one end of the relay K1, the other end of the photo resistor RL is connected with one end of the sliding rheostat R1, the other end of the sliding rheostat R1 is grounded, a sliding end of the sliding rheostat R1 is connected with a base of the transistor Q1, an emitter of the transistor Q1 is grounded, a collector of the transistor Q1 is connected with a cathode of the light emitting diode D2, the positive pole of emitting diode D2 is connected the 2 stitch of power source interface, emitting diode D2's negative pole is connected the other end of relay K1, diode D1's negative pole is connected the one end of relay K1, diode D1's positive pole is connected the other end of relay K1, switch K1's one end is connected the 1 stitch of battery, switch K1's the other end is connected emitting diode D5's positive pole, emitting diode D5's negative pole ground connection.
8. The control system of a multifunctional advertisement player according to claim 7, further comprising an audio input/output module, wherein the audio input/output module comprises an audio processing chip, an audio input device and an audio output device, and the audio input device is used for receiving audio from the multifunctional advertisement player end; the audio output device is used for playing advertisement sound and the audio of external personnel, and the audio processing chip is used for clearly processing the audio transmitted by the audio input device and the audio output device; the audio input device and the audio output device are connected with an audio processing chip, and the audio processing chip is connected with an I2S port and an I2C4 port of the control chip.
9. The control system of a multifunctional advertising player according to claim 8, further comprising a signal transmission module and a clock circuit, wherein the signal transmission module is used for receiving a signal sent to the multifunctional advertising player from the outside or sending a signal from the multifunctional advertising player to the outside; the clock circuit is used for displaying the current time and setting the working time of the multifunctional advertising machine; the signal transmission module comprises a network interface, an RJ-45 communication interface and WIFI equipment, one end of the network interface is connected with the RJ-45 communication interface, the other end of the network interface is connected with a GMAC port of the control chip, the WIFI equipment is connected with an SDI 00 port and an UARTO port of the control chip, the clock circuit is connected with a CLKIN port of the control chip, and the clock circuit is also connected with the WIFI equipment.
10. The control system of a multifunctional advertising player according to claim 9, further comprising a storage module for storing information transmitted from the peripheral circuit of the control chip; the storage module comprises a memory card, an SD card and a flash memory card, and when the SD card is used, the SD card is connected with the SDMMCO port of the control chip; when the flash memory card is used, the flash memory card is connected with a FLASHO port of the control chip; when the memory card is used, the memory card is connected with the memory interface of the control chip.
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