CN112060885A - Working method of rain shielding device for vehicle based on induction type extension - Google Patents

Working method of rain shielding device for vehicle based on induction type extension Download PDF

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Publication number
CN112060885A
CN112060885A CN202010959578.5A CN202010959578A CN112060885A CN 112060885 A CN112060885 A CN 112060885A CN 202010959578 A CN202010959578 A CN 202010959578A CN 112060885 A CN112060885 A CN 112060885A
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China
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single chip
chip microcomputer
motor
circuit
diode
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Chinese (zh)
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梁文思
梁文峻
李东骏
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Guangzhou College of South China University of Technology
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Guangzhou College of South China University of Technology
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Priority to CN202010959578.5A priority Critical patent/CN112060885A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60JWINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J5/00Doors
    • B60J5/04Doors arranged at the vehicle sides
    • B60J5/0493Appurtenances
    • B60J5/0494Rain covers deployed upon opening door

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power-Operated Mechanisms For Wings (AREA)

Abstract

The invention provides a working method of a vehicular rain shielding device based on induction type extension, which comprises an obstacle-free extension mode and an obstacle extension mode, wherein the obstacle-free extension mode is that a forward and reverse rotation circuit is controlled by starting an extension and recovery switch, so that forward and reverse rotation of a motor is controlled, extension and recovery of a rain shielding plate are realized, when a bus detects an obstacle through a sensor module, the forward and reverse rotation circuit is controlled by a single chip microcomputer to stop the motor to work, and the rain shielding plate is prevented from being damaged. The invention has the advantages of facilitating passengers to get on and off the bus, improving the efficiency of getting on and off the bus by the passengers and relieving traffic jam.

Description

Working method of rain shielding device for vehicle based on induction type extension
Technical Field
The invention relates to the technical field of bus facilities, in particular to a working method of a rain shielding device for a vehicle based on induction type extension.
Background
Buses are the most popular means of mass transportation. The development of urbanization and motorization leads to the continuous increase of urban population and regions, the demand for public transportation is correspondingly and rapidly increased, and public transportation enterprises are required to invest in more buses. According to the statistics that every ten thousand people in the urban population possess 0.6 vehicle, about 26.4 thousands of the existing urban passenger cars reach at least 63 thousands of the existing urban passenger cars in 2010, at least 3-4 thousands of the existing urban passenger cars are added in each year, and 5.5 thousands of the existing urban passenger cars are added in each year after scrapping and updating. The buses are good transportation means for people to work on duty mostly in order to meet the requirement that the transportation means for people to work on duty is low in price.
However, people can feel much trouble when taking buses, especially in rainy days; because the bus leans on when standing to have the clearance of great distance with the ceiling, can not accomplish seamless butt joint, can't effectively block out the sun and rain, the passenger who props the umbrella can pack up the umbrella before the bus is gone up, the activity space that needs this moment will be bigger and cause the influence to the passenger who lines up around it easily, causes the speed of getting on the bus to slow down simultaneously.
In order to solve the technical problems, a seamless butt joint system of a bus and a bus station platform is disclosed in patent document with the publication number of 201420508633.9 and the publication number of 2014.12.24, which comprises a bus station, wherein the front end of the bus station platform is provided with a telescopic motor, a rain shed telescopic bin, a rain shed and a blind, the rain shed is arranged in the rain shed telescopic bin and is connected with the telescopic motor through a telescopic rod, the blind is arranged at the edge of the rain shed, the top of the bus station platform at one side of the rain shed telescopic bin is provided with an infrared sensor, the middle rear part of the bus station platform is provided with a rolling curtain motor, the interior of the rolling curtain motor is provided with a rolling curtain, the upper part of the rolling curtain motor is provided with a hanging rod, the hanging rod is connected to an upper sliding rail, the upper sliding rail is arranged on the upper surface of the bus station platform, one side of the sliding rail is respectively provided with a humidity detector, a signal sensor and a power supply system, the, the lower slide rail is provided with a folding ladder.
However, according to the technical scheme disclosed in the document, if each bus stop is constructed according to the technical scheme, the method is unrealistic obviously, the cost is too high, and the universality is not strong.
Disclosure of Invention
The invention provides a working method of a vehicle rain shielding device based on induction type extension, by utilizing the invention, in rainy days, passengers do not need to open an umbrella when getting on the bus at a station, thereby saving the action of opening and retracting the umbrella before getting on the bus, improving the efficiency of getting on and off the bus by the passengers in rainy days, facilitating the passengers to get on and off the bus and simultaneously not influencing the normal running of the bus; when the rain shield extends out and meets an obstacle, the rain shield stops stretching in a sensing manner, and the rain shield is prevented from being damaged.
In order to achieve the purpose, the technical scheme of the invention is as follows: the working method of the rain shielding device for the vehicle based on the induction type extension comprises a rain awning body fixedly arranged on the roof of the bus and a control system.
The awning body comprises a fixed support, a slide rail, a motor, a transmission mechanism and a rain baffle; the two fixed supports are symmetrically arranged, the number of the slide rails is two, the two slide rails are respectively and symmetrically and fixedly arranged at the inner sides of the fixed supports at the two sides, the motor is arranged on the fixed support at one side, and the output end of the motor is connected with the transmission mechanism; the transmission mechanism is connected with the tops of the fixing frames at the two sides; the rain baffle is connected with the slide rails on the two sides; the infrared photoelectric switch is arranged at one end of the rain baffle; the two ends of the bottom surface of the rain baffle are respectively fixedly connected with the sliding rails on the two sides, and the driving belt is fixedly connected with the rain baffle.
The control system comprises a single chip microcomputer, a reset circuit, a crystal oscillator circuit, a motor control module, a power supply voltage module, a sensor module and a switch module, wherein the reset circuit, the crystal oscillator circuit, the motor control module, the power supply voltage module, the sensor module and the switch module are respectively connected with the single chip microcomputer.
The motor control module comprises a forward circuit, a reverse circuit and a motor voltage regulator, one end of the forward circuit and one end of the reverse circuit are respectively connected with the single chip microcomputer, the forward circuit and the reverse circuit are respectively supplied with power through the power supply voltage module, the other end of the forward circuit is connected with the interface J1 and the motor voltage regulator, the other end of the reverse circuit is connected with the interface J1 and the motor voltage regulator, and the interface J1 is connected with the motor; the motor voltage regulator is connected to the power supply voltage module.
The switch module comprises an extension switch S1 connected between the single chip microcomputer and the ground, a recovery switch S2 connected between the single chip microcomputer and the ground and a manual reset switch S3 connected between the single chip microcomputer and the ground.
The working method of the vehicle rain shielding device based on the induction type automatic stretching comprises an obstacle-free stretching mode and an obstacle stretching mode.
The steps of the barrier-free telescopic mode are as follows:
1) when a bus arrives at a bus station, the extension switch S1 is pressed, the single chip microcomputer outputs a pulse signal to the forward rotation circuit after obtaining the pulse signal, the crystal oscillator circuit outputs the pulse signal to the single chip microcomputer, the single chip microcomputer starts timing at the same time, the forward rotation circuit works and drives the motor to rotate forward, the motor drives the rain shield to extend out through the transmission mechanism, when the timing of the single chip microcomputer reaches the preset time, the single chip microcomputer stops outputting the pulse signal to the forward rotation circuit, and the motor stops acting.
2) After the bus finishes getting on and off passengers, the recovery switch S2 is pressed, the single chip microcomputer outputs a signal to the reversing circuit after obtaining a pulse signal, the crystal oscillator circuit outputs the pulse signal to the single chip microcomputer, the single chip microcomputer starts timing, the reversing circuit works and drives the motor to reverse, the motor drives the rain baffle to recover through the transmission mechanism, when the timing of the single chip microcomputer is the same as the extending time, the single chip microcomputer stops outputting the signal to the reversing circuit, and the motor stops acting.
3) And resetting the timer after the inversion of the step 2) is completed.
The steps of the barrier expansion mode are as follows:
a. when a bus arrives at a bus station, the extension switch S1 is pressed, the single chip microcomputer outputs a pulse signal to the forward rotation circuit after obtaining the pulse signal, the crystal oscillator circuit outputs the pulse signal to the single chip microcomputer, the single chip microcomputer starts timing, the forward rotation circuit works and drives the motor to rotate forward, the motor drives the rain baffle to extend out through the transmission mechanism, when the sensor module detects an obstacle, the sensor module outputs a signal to the single chip microcomputer, the single chip microcomputer stops outputting the signal to the forward rotation circuit, and the motor stops acting.
b. When the recovery switch S2 is pressed, the single chip microcomputer outputs a signal to the reversing circuit after the single chip microcomputer obtains a pulse signal, the crystal oscillator circuit outputs the pulse signal to the single chip microcomputer, the single chip microcomputer starts timing, the reversing circuit works and drives the motor to reverse, the motor drives the rain baffle to recover through the transmission mechanism, when the timing of the single chip microcomputer is the same as the extending time, the single chip microcomputer stops outputting the signal to the reversing circuit, and the motor stops acting.
By the working method, in rainy days, when a bus arrives at a station, the rain baffle can be controlled to extend outwards, so that passengers can not get wet without opening the umbrella when the passengers get on or off the bus, the passengers can get on or off the bus conveniently, and meanwhile, the efficiency of getting on or off the bus can be improved. After the passengers get on or off the bus, the rain baffle is controlled to be retracted, so that the driving of the bus is not influenced, and the traffic jam is relieved.
In the invention, when the bus is powered off accidentally after the rain shield extends out, the manual reset switch S3 can be pressed to recover the rain shield, so that the normal running of the bus is not influenced; in addition, even if the rain shield meets an obstacle in the extending process, the infrared photoelectric sensor outputs a detected signal to the single chip microcomputer, and the single chip microcomputer stops outputting the signal to the motor, so that the motor stops acting, and the rain shield is prevented from being damaged.
Furthermore, the transmission mechanism comprises a vertical bearing, a first transmission shaft, a second transmission shaft and a transmission belt, wherein the vertical bearing is arranged at each of two ends of each fixing support respectively, the two ends of the first transmission shaft are rotatably connected with the vertical bearings at one ends of the fixing supports at two sides, the two ends of the second transmission shaft are rotatably connected with the vertical bearings at the other ends of the fixing supports at two sides, the first transmission shaft is provided with a first synchronous belt pulley, the second transmission shaft is provided with a second synchronous belt pulley, the inner side of the transmission belt is provided with a tooth-shaped bulge, the transmission belt is sleeved between the first synchronous belt pulley and the second synchronous belt pulley, and the transmission belt is fixedly connected with a rain baffle at the outer side close to one end of; the output end of the motor is connected with the first transmission shaft; the sensor module is arranged between the rain shield and the single chip microcomputer, the sensor module is arranged above, after the extension switch S1 is pressed down, the output end of the motor drives the first transmission shaft to rotate, the first synchronous belt wheel on the first transmission shaft drives the second transmission shaft to rotate through transmission belt, and the transmission belt drives the rain shield to slide along the sliding rail and slide out of the roof of the bus.
Further, the forward rotation circuit comprises an inductor L1, a diode D1, a PNP type triode Q1, a diode D3 and a relay K1; one end of an inductor L1 is connected with the single chip microcomputer, the other end of the inductor L1 is connected with the negative electrode of a diode D1, the other end of a diode D1 is connected with the base electrode of a PNP type triode Q1, the emitter electrode of the PNP type triode Q1 is connected with the VCC end of the power supply voltage module, the collector electrode of a PNP type triode Q1 is connected with one end of the coil of a relay K1, the negative electrode of a diode D3 is connected between the collector electrode of the PNP type triode Q1 and the coil of the relay K1, the positive electrode of the diode D3 is grounded, the other end of the coil of the relay K1 is grounded, the movable contact of the relay K1 is connected with an interface J1, one of the stationary contacts of the relay K36.
The reverse circuit comprises an inductor L2, a diode D2, a PNP type triode Q2, a diode D4 and a relay K2; one end of an inductor L2 is connected with the single chip microcomputer, the other end of the inductor L2 is connected with the negative electrode of a diode D2, the other end of a diode D2 is connected with the base electrode of a PNP type triode Q2, the emitter electrode of the PNP type triode Q2 is connected with the VCC end of the power supply voltage module, the collector electrode of a PNP type triode Q2 is connected with one end of the coil of a relay K2, the negative electrode of a diode D4 is connected between the collector electrode of the PNP type triode Q2 and the coil of the relay K1, the positive electrode of the diode D4 is grounded, the other end of the coil of the relay K2 is grounded, the movable contact of the relay K2 is connected with an interface J1, one of the stationary contacts of the relay K36.
When the motor corotates, the output shaft of the motor drives the first transmission shaft to rotate, the first transmission shaft drives the first synchronous pulley to rotate, the first synchronous pulley drives the transmission belt to move, and the transmission belt drives the rain baffle to move towards the outer side of the fixed support and enables the free end of the rain baffle to extend out of the fixed support 1.
When the motor rotates reversely, the output shaft of the motor drives the first transmission shaft to rotate reversely, the first transmission shaft drives the first synchronous pulley to rotate reversely, the first synchronous pulley drives the transmission belt to move reversely, and the transmission belt drives the rain baffle to retract into the fixed support.
Therefore, the motor can be controlled to rotate forwards and backwards through the single chip microcomputer, and the forward and reverse rotation circuits interact with each other.
Further, VIN of the motor voltage regulator is connected with a 24V power supply, VOUT of the motor voltage regulator is connected with relays K1 and K2, and GND end of the motor voltage regulator is grounded. Thus, a stable operating voltage can be supplied to the motor.
Further, the power supply voltage module comprises a voltage stabilizer, a diode D5, a capacitor C4 and a switch S5, the voltage stabilizer is connected with the cathode of the diode D5, the voltage stabilizer is connected with the switch S5, the GND end of the voltage stabilizer is grounded, the anode of the diode D5 is connected with a 24V power supply, the capacitor C4 is connected between the VOUT end of the voltage stabilizer and the ground, and the output end of the switch S5 is a VCC end. Thus, a stable voltage can be provided through the VCC terminal.
Furthermore, the crystal oscillator circuit comprises a second capacitor, a third capacitor and a crystal oscillator, one end of the second capacitor is grounded, the other end of the second capacitor is connected with the single chip microcomputer, one end of the third capacitor is grounded, the other end of the third capacitor is connected with the single chip microcomputer, and the crystal oscillator is connected between the second capacitor and the third capacitor. Timing can be achieved by a crystal oscillator circuit.
Furthermore, the reset circuit comprises a fourth capacitor and a first resistor, one end of the fourth capacitor is connected with the VCC end of the power supply voltage module, the other end of the fourth capacitor is connected with the single chip microcomputer, one end of the first resistor is grounded, and the other end of the first resistor is connected with the single chip microcomputer.
Further, the single chip microcomputer is an STC89C52 microcontroller.
Further, infrared photoelectric switch module includes infrared photoelectric sensor, interface P1, obstacle indicator LED, and resistance R1, infrared photoelectric sensor installs on the weather shield and connects on interface P1, power supply voltage module is connected to interface P1's 1 end, interface P1's 2 ends ground connection, power supply voltage module is connected to obstacle indicator LED's one end, resistance R1 is connected to obstacle indicator LED's the other end, 3 ends and the singlechip of interface P1 are connected to resistance R1. When infrared photoelectric sensor detected the barrier, infrared photoelectric sensor passed through interface P1 and lets the singlechip produce the signal, and obstacle indicator LED lights simultaneously to observe and the suggestion.
Furthermore, the single chip microcomputer is also provided with a download port, and the download port is connected with the single chip microcomputer. This facilitates downloading of data.
Drawings
Fig. 1 is a schematic perspective view of a rain fly body according to the present invention.
Fig. 2 is a block schematic diagram of a control system in the present invention.
Fig. 3 is a schematic diagram of the single chip microcomputer.
Fig. 4 is a circuit diagram of the motor control module of the present invention.
Fig. 5 is a circuit diagram of a crystal oscillator circuit according to the present invention.
Fig. 6 is a circuit diagram of a reset circuit in the present invention.
Fig. 7 is a circuit diagram of the power supply voltage module of the present invention.
Fig. 8 is a schematic circuit diagram of a sensor module according to the present invention.
Fig. 9 is a circuit diagram of the switch module of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-9, the working method of the rain shelter for the vehicle based on the induction type extension comprises a rain shed body fixedly arranged on the roof of the bus and a control system.
The awning body comprises a fixed support 1, a slide rail 2, a motor 3, a transmission mechanism 4 and a rain baffle 5; the fixed bolster 1 is equipped with two, and two fixed bolster 1 symmetries set up, and slide rail 2 is total two, and two slide rail 2 symmetries are fixed the inboard that sets up at both sides fixed bolster 1 respectively, and motor 3 sets up on the fixed bolster 1 of one side, and motor 3's output is connected with drive mechanism 4. The transmission mechanism 4 is connected with the tops of the fixed frames 1 at the two sides; the rain baffle 5 is connected with the slide rails 2 at two sides; the two ends of the bottom surface of the rain baffle 5 are respectively fixedly connected with the slide rails 2 at the two sides, and the outer side of the transmission belt 44 is fixedly connected with the top surface of the rain baffle 5.
In this embodiment, the transmission mechanism 4 includes a vertical bearing 41, a first transmission shaft 42, a second transmission shaft 43 and a transmission belt 44, the vertical bearing 41 is respectively disposed at two ends of each fixing bracket, the two ends of the first transmission shaft 42 are rotatably connected to the vertical bearings 41 at one ends of the fixing brackets 1 at two sides, the two ends of the second transmission shaft 43 are rotatably connected to the vertical bearings 41 at the other ends of the fixing brackets 1 at two sides, the first transmission shaft 42 is provided with a first synchronous pulley 421, the second transmission shaft 43 is provided with a second synchronous pulley 431, the inner side of the transmission belt 44 is provided with a tooth-shaped protrusion, the transmission belt 44 is sleeved between the first synchronous pulley 421 and the second synchronous pulley 431, and the transmission belt 44 is fixedly connected to the rain shield 5 at the outer side near one end of the second synchronous pulley 431; the output end of the motor 3 is connected with a first transmission shaft 42, and the infrared photoelectric switch 6 is arranged on the rain shield.
When the motor 3 rotates forward, the output shaft of the motor 3 drives the first transmission shaft 42 to rotate, the first transmission shaft 42 drives the first synchronous belt wheel 421 to rotate, the first synchronous belt wheel 421 drives the transmission belt 44 to move, and the transmission belt 44 drives the rain baffle 5 to move towards the outer side of the fixed support 1 and allows the free end of the rain baffle 5 to extend out of the fixed support 1.
When the motor 3 rotates reversely, the output shaft of the motor 3 drives the first transmission shaft 42 to rotate reversely, the first transmission shaft 42 drives the first synchronous pulley 421 to rotate reversely, the first synchronous pulley 421 drives the transmission belt 44 to move reversely, and the transmission belt 44 drives the rain shielding plate 5 to retract into the fixed support 1.
The control system comprises a single chip microcomputer 71, a reset circuit 72, a crystal oscillator circuit 73, a motor control module 74, a power supply voltage module 75, a sensor module 76 and a switch module 77. The crystal oscillator circuit 73 is respectively connected with a pin 18 and a pin 19 of the singlechip 71, the reset circuit 72 is connected with a pin 9 of the singlechip 71, the sensor module 76 is respectively connected with a pin 37, a pin 38 and a pin 39 of the singlechip 71, the motor control module 74 is respectively connected with a pin 21 and a pin 22 of the singlechip 71, the power supply voltage module 75 is connected with the motor regulation module, and the power supply voltage module 75 is connected with a pin 40 of the singlechip; the switch module 77 is connected to the pin 1, the pin 2 and the pin 3 of the single chip 71, respectively.
As shown in fig. 3, the single chip microcomputer is an STC89C52 microcontroller. Pin 40 of the single chip 71 is connected to the VCC terminal of the power supply voltage module 75, and pin 20 of the single chip 71 is grounded to supply power to the single chip 71. The pin 31 of the single chip 71 is connected to the VCC terminal of the power supply voltage module 75.
The single chip 71 is further provided with a download port, and the download port is respectively connected with a pin 10 and a pin 11 of the single chip 71. Therefore, the external equipment is conveniently connected, and data downloading is convenient.
As shown in fig. 6, the reset circuit 72 includes a fourth capacitor 721 and a first resistor 722, one end of the fourth capacitor 721 is connected to the VCC terminal of the power supply voltage module 75, the other end of the fourth capacitor 721 is connected to the pin 9 of the single chip 71, one end of the first resistor 722 is grounded, and the other end of the first resistor 722 is connected to the pin 9 of the single chip 71.
As shown in fig. 5, the crystal oscillator circuit 73 includes a second capacitor 731, a third capacitor 732, and a crystal oscillator 733, one end of the second capacitor 731 is grounded, the other end of the second capacitor 732 is connected to a pin 19 of the single chip 71, one end of the third capacitor 732 is grounded, the other end of the third capacitor 732 is connected to a pin 18 of the single chip 71, and the crystal oscillator 733 is connected between the pins 18 and 19 of the single chip 71. The crystal oscillator circuit 73 is mainly used for timing.
As shown in fig. 4, the motor control module 74 includes a forward rotation circuit 741, a reverse rotation circuit 742, and a motor voltage regulator 743.
The forward rotation circuit 741 includes an inductor L1, a diode D1, a PNP transistor Q1, a diode D3, and a relay K1. One end of an inductor L1 is connected with a pin 21 of the single chip microcomputer, the other end of the inductor L1 is connected with the negative electrode of a diode D1, the other end of a diode D1 is connected with a base electrode of a PNP type triode Q1, an emitter electrode of the PNP type triode Q1 is connected with a VCC end of the power supply voltage module 75, a collector electrode of the PNP type triode Q1 is connected with one end of a coil of the relay K1, the negative electrode of the diode D3 is connected between the collector electrode of the PNP type triode Q1 and the coil of the relay K1, an anode of the diode D3 is grounded, the other end of the coil of the relay K1 is grounded, a moving contact of the relay K1 is connected with an interface J1, one static contact of the relay K1 is.
The inverter circuit 742 includes an inductor L2, a diode D2, a PNP transistor Q2, a diode D4, and a relay K2. One end of an inductor L2 is connected with a pin 22 of the single chip microcomputer, the other end of the inductor L2 is connected with the negative electrode of a diode D2, the other end of a diode D2 is connected with a base electrode of a PNP type triode Q2, an emitter electrode of the PNP type triode Q2 is connected with a VCC end of the power supply voltage module 75, a collector electrode of the PNP type triode Q2 is connected with one end of a coil of the relay K2, the negative electrode of the diode D4 is connected between the collector electrode of the PNP type triode Q2 and the coil of the relay K1, an anode of the diode D4 is grounded, the other end of the coil of the relay K2 is grounded, a moving contact of the relay K2 is connected with an interface J1, one static contact of the relay K2 is.
The motor voltage regulator 743 is an LM7805 model regulator. VIN of the motor voltage regulator 743 is connected with a 24V power supply, VOUT of the motor voltage regulator 743 is connected with relays K1 and K2, and GND end of the motor voltage regulator 743 is grounded. When 24V is supplied to the motor regulator 743, VOUT of the motor regulator 743 outputs a stable voltage, so that the motor can be supplied with the stable voltage.
In the present invention, the motor 3 is connected to the interface J1.
In the present invention, when the pin 21 of the single chip 71 has a signal, in this embodiment, the pin 21 of the single chip 71 has a signal indicating a low level signal, the PNP transistor Q1 is turned on, the coil of the relay K1 is energized, the movable contact of the relay K1 is connected to the grounded stationary contact of the relay K1, the output voltage of the VOUT terminal of the motor voltage regulator 743 is input to the motor 3 through the stationary contact and the movable contact of the relay K2, and the output terminal of the motor 3 is output through the movable contact of the relay K1 and the stationary contact connected to the ground, so as to realize the forward rotation of the motor.
In the present invention, when the pin 22 of the single chip microcomputer 71 has a signal, in this embodiment, the pin 22 of the single chip microcomputer 71 has a signal indicating a low level signal, the PNP type triode Q2 is turned on, the coil of the relay K2 is energized, the movable contact of the relay K2 is connected to the grounded stationary contact of the relay K2, the output voltage of the VOUT terminal of the motor voltage regulator 743 is input to the motor 3 through the stationary contact and the movable contact of the relay K1, and the output terminal of the motor 3 is output through the movable contact of the relay K2 and the stationary contact grounded, so as to realize the reverse rotation of the motor.
As shown in fig. 7, the power supply voltage module 75 includes a regulator 751, a diode D5, a capacitor C4, and a switch S5, wherein the model of the regulator 751 is LM7805, the regulator 751 is connected to the negative electrode of the diode D5, the regulator 751 is connected to the switch S5, the GND terminal of the regulator 751 is grounded, the positive electrode of the diode D5 is connected to the 24V power supply, the capacitor C4 is connected between the VOUT terminal of the regulator 751 and the ground, and the output terminal of the switch S5 is VCC terminal. The interface P5 is connected between the 24V power supply and the ground, so that power is conveniently supplied to the outside.
As shown in fig. 8, the sensor module 76 includes three infrared photoelectric switch modules, which are connected to the pins 37, 38, and 39 of the single chip microcomputer 71. The following description is made with one of the infrared photoelectric switch modules, the infrared photoelectric switch module includes infrared photoelectric sensor 6, interface P1, obstacle indicator LED, and resistance R1, infrared photoelectric sensor 6 is installed on weather shield 5 and is connected on interface P1, VCC end is connected to interface P1's 1 end, interface P1's 2 end ground, VCC end is connected to obstacle indicator LED's one end, obstacle indicator LED's the other end connecting resistance R1, resistance R1 connects interface P1's 3 end and singlechip 71. In this embodiment, three infrared photoelectric sensors of the infrared photoelectric switch module are respectively installed at the left, middle and right of one end of the rain shield, so that the detection precision is higher.
In the invention, when the infrared photoelectric sensor 6 detects an obstacle, the infrared photoelectric sensor 6 enables the single chip microcomputer to generate a signal through the interface P1, and meanwhile, the obstacle indicator light LED is lightened.
As shown in fig. 9, the switch module 77 includes an extension switch S1, a recovery switch S2, and a manual reset switch S3, the extension switch S1 is connected between pin 1 of the single chip microcomputer 71 and the ground, the recovery switch S2 is connected between pin 2 of the single chip microcomputer 71 and the ground, the manual reset switch S3 is connected between pin 3 of the single chip microcomputer 71 and the ground, and the manual reset switch S3 is used to restart the retraction of the rain shield after the rain shield is extended and unexpectedly powered off.
In the present invention, each connection point in fig. 3 to 9 is denoted by the same letter.
The working method of the vehicle rain shielding device based on the induction type automatic stretching comprises an obstacle-free stretching mode and an obstacle stretching mode.
In the invention, the power supply voltage module 75 supplies power to the singlechip 71, the motor control module 74, the reset circuit 72 and the sensor module 76, and the principle is as follows: by supplying power to the regulator 751, VOUT output from the regulator 751 is stepped down and regulated by the regulator 751, and when the switch S5 is closed, VCC terminal is supplied with power, so that a stable voltage can be output by the regulator 751.
The barrier-free telescopic mode comprises the following steps:
1) when a bus arrives at a bus station, the extension switch S1 is pressed, after a pulse signal is obtained at the pin 1 of the single chip microcomputer 71, the pin 21 of the single chip microcomputer 71 outputs the pulse signal to the forward rotation circuit 741, the crystal oscillator circuit 73 outputs the pulse signal to the single chip microcomputer 71, meanwhile, the single chip microcomputer 71 starts timing, the forward rotation circuit 741 works and drives the motor 3 to rotate forward, the motor 3 drives the rain shielding plate 5 to extend, when the single chip microcomputer 71 and the crystal oscillator circuit 73 are timed to reach a preset time, the pin 21 of the single chip microcomputer 71 stops outputting the pulse signal, and the motor stops acting.
2) After the bus finishes getting on and off passengers, the recovery switch S2 is pressed, after the pin 2 of the single chip microcomputer 71 obtains a pulse signal, the pin 22 of the single chip microcomputer 71 outputs a signal to the reversing circuit 742, the crystal oscillator circuit 73 outputs a pulse signal to the single chip microcomputer 71, the single chip microcomputer 71 starts timing at the same time, the reversing circuit 742 works and drives the motor 3 to reverse, the motor 3 drives the rain baffle 5 to recover, when the single chip microcomputer 71 is timed through the crystal oscillator circuit 73 and is the same as the extending time, the pin 22 of the single chip microcomputer 71 stops outputting the signal, and the motor stops acting.
3) And resetting the timer after the inversion of the step 2) is completed.
The steps of the barrier expansion mode are as follows:
a. when a bus arrives at a bus station, an extension switch S1 is pressed, after a pulse signal is obtained at a pin 1 of a single chip microcomputer 71, a pin 21 of the single chip microcomputer 71 outputs a pulse signal to a forward rotation circuit 741, a crystal oscillator circuit 73 outputs a pulse signal to the single chip microcomputer 71, the single chip microcomputer 71 starts timing at the same time, the forward rotation circuit 741 works and drives a motor 3 to rotate forward, the motor 3 drives a rain shield 5 to extend, when an infrared photoelectric sensor 6 arranged at one end of the rain shield 5 detects an obstacle, a sensor module 76 outputs a signal to the single chip microcomputer 71, an obstacle indicator lamp is lightened, the pin 21 of the single chip microcomputer 71 stops outputting an action, and the motor 3 stops an action.
b. When the recovery switch S2 is pressed, after the pin 2 of the single chip microcomputer 71 obtains a pulse signal, the pin 22 of the single chip microcomputer 71 outputs a signal to the inversion circuit 742, the crystal oscillator circuit 73 outputs a pulse signal to the single chip microcomputer 71, and at the same time, the single chip microcomputer 71 starts timing, the inversion circuit 742 operates and drives the motor 3 to invert, the motor 3 drives the rain shield 5 to retract, when the timing of the single chip microcomputer 71 through the crystal oscillator circuit 73 is the same as the extension time, the pin 22 of the single chip microcomputer 71 stops outputting the signal, and the motor stops operating.
By the working method, in rainy days, when a bus arrives at a station, the rain baffle can be controlled to extend outwards, so that passengers can not get wet without opening the umbrella when the passengers get on or off the bus, the passengers can get on or off the bus conveniently, and meanwhile, the efficiency of getting on or off the bus can be improved. After the passengers get on or off the bus, the rain baffle is controlled to be retracted, so that the driving of the bus is not influenced, and the traffic jam is relieved.
In the invention, when the bus is powered off accidentally after the rain baffle 5 is stretched out, the manual reset switch S3 can be pressed to recover the rain baffle 5, so that the normal running of the bus is not influenced; in addition, even if the rain shield meets an obstacle in the extending process, the infrared photoelectric sensor outputs a detected signal to the single chip microcomputer 71, and the single chip microcomputer 71 stops outputting the signal to the motor, so that the motor stops acting, and the rain shield is prevented from being damaged.

Claims (10)

1. The working method of the rain shielding device for the vehicle based on the induction type extension is characterized in that: the awning comprises an awning body fixedly arranged on the roof of a bus and a control system;
the awning body comprises a fixed support, a slide rail, a motor, a transmission mechanism and a rain baffle; the two fixed supports are symmetrically arranged, the number of the slide rails is two, the two slide rails are respectively and symmetrically and fixedly arranged at the inner sides of the fixed supports at the two sides, the motor is arranged on the fixed support at one side, and the output end of the motor is connected with the transmission mechanism; the transmission mechanism is connected with the tops of the fixing frames at the two sides; the rain baffle is connected with the slide rails on the two sides; the infrared photoelectric switch is arranged at one end of the rain baffle; two ends of the bottom surface of the rain baffle are respectively fixedly connected with the sliding rails on two sides, and the driving belt is fixedly connected with the rain baffle;
the control system comprises a single chip microcomputer, a reset circuit, a crystal oscillator circuit, a motor control module, a power supply voltage module, a sensor module and a switch module, wherein the reset circuit, the crystal oscillator circuit, the motor control module, the power supply voltage module, the sensor module and the switch module are respectively connected with the single chip microcomputer;
the motor control module comprises a forward circuit, a reverse circuit and a motor voltage regulator, one end of the forward circuit and one end of the reverse circuit are respectively connected with the single chip microcomputer, the forward circuit and the reverse circuit are respectively supplied with power through the power supply voltage module, the other end of the forward circuit is connected with the interface J1 and the motor voltage regulator, the other end of the reverse circuit is connected with the interface J1 and the motor voltage regulator, and the interface J1 is connected with the motor; the motor voltage regulator is connected to the power supply voltage module;
the switch module comprises an extension switch S1 connected between the single chip microcomputer and the ground, a recovery switch S2 connected between the single chip microcomputer and the ground and a manual reset switch S3 connected between the single chip microcomputer and the ground;
the working method of the rain shielding device for the vehicle based on the induction type automatic stretching comprises an obstacle-free stretching mode and an obstacle stretching mode;
the steps of the barrier-free telescopic mode are as follows:
1) when a bus arrives at a bus station, the extension switch S1 is pressed, after the single chip microcomputer obtains a pulse signal, the single chip microcomputer outputs the pulse signal to the forward rotation circuit, the crystal oscillator circuit outputs the pulse signal to the single chip microcomputer, meanwhile, the single chip microcomputer starts timing, the forward rotation circuit works and drives the motor to rotate forward, the motor drives the rain shield to extend through the transmission mechanism, when the single chip microcomputer reaches preset time, the single chip microcomputer stops outputting the pulse signal to the forward rotation circuit, and the motor stops acting;
2) after the bus finishes getting on and off passengers, a recovery switch S2 is pressed, after the single chip microcomputer obtains a pulse signal, the single chip microcomputer outputs a signal to a reverse circuit, a crystal oscillator circuit outputs the pulse signal to the single chip microcomputer, the single chip microcomputer starts timing, the reverse circuit works and drives a motor to reversely rotate, the motor drives a rain shield to recover through a transmission mechanism, when the timing of the single chip microcomputer is the same as the extending time, the single chip microcomputer stops outputting the signal to the reverse circuit, and the motor stops acting;
3) after the inversion of the step 2) is completed, timing and resetting;
the steps of the barrier expansion mode are as follows:
a. when a bus arrives at a bus station, the extension switch S1 is pressed, after the single chip microcomputer obtains a pulse signal, the single chip microcomputer outputs the pulse signal to the forward rotation circuit, the crystal oscillator circuit outputs the pulse signal to the single chip microcomputer, meanwhile, the single chip microcomputer starts timing, the forward rotation circuit works and drives the motor to rotate forward, the motor drives the rain baffle to extend out through the transmission mechanism, when the sensor module detects an obstacle, the sensor module outputs a signal to the single chip microcomputer, the single chip microcomputer stops outputting the signal to the forward rotation circuit, and the motor stops acting;
b. when the recovery switch S2 is pressed, the single chip microcomputer outputs a signal to the reversing circuit after the single chip microcomputer obtains a pulse signal, the crystal oscillator circuit outputs the pulse signal to the single chip microcomputer, the single chip microcomputer starts timing, the reversing circuit works and drives the motor to reverse, the motor drives the rain baffle to recover through the transmission mechanism, when the timing of the single chip microcomputer is the same as the extending time, the single chip microcomputer stops outputting the signal to the reversing circuit, and the motor stops acting.
2. The operating method of the induction type telescopic rain shielding device for the vehicle according to claim 1, wherein: the transmission mechanism comprises a vertical bearing, a first transmission shaft, a second transmission shaft and a transmission belt, wherein the vertical bearing is arranged at each of two ends of each fixed support, the vertical bearing at one end of each fixed support is rotatably connected with each of two ends of the first transmission shaft, the vertical bearing at the other end of each fixed support is rotatably connected with each of two ends of the second transmission shaft, the first transmission shaft is provided with a first synchronous belt pulley, the second transmission shaft is provided with a second synchronous belt pulley, the inner side of the transmission belt is provided with a tooth-shaped bulge, the transmission belt is sleeved between the first synchronous belt pulley and the second synchronous belt pulley, and the transmission belt is fixedly connected with a rain baffle; the output end of the motor is connected with the first transmission shaft; the sensor module is arranged between the rain shield and the singlechip.
3. The operating method of the induction type telescopic rain shielding device for the vehicle according to claim 1, wherein: the forward rotation circuit comprises an inductor L1, a diode D1, a PNP type triode Q1, a diode D3 and a relay K1; one end of an inductor L1 is connected with the single chip microcomputer, the other end of the inductor L1 is connected with the negative electrode of a diode D1, the other end of a diode D1 is connected with the base electrode of a PNP type triode Q1, the emitter electrode of a PNP type triode Q1 is connected with the VCC end of a power supply voltage module, the collector electrode of a PNP type triode Q1 is connected with one end of a coil of a relay K1, the negative electrode of a diode D3 is connected between the collector electrode of the PNP type triode Q1 and the coil of the relay K1, the positive electrode of the diode D3 is grounded, the other end of the coil of the relay K1 is grounded, the movable contact of the relay K1 is connected with an interface J1, one of the stationary contacts of the relay K36;
the reverse circuit comprises an inductor L2, a diode D2, a PNP type triode Q2, a diode D4 and a relay K2; one end of an inductor L2 is connected with the single chip microcomputer, the other end of the inductor L2 is connected with the negative electrode of a diode D2, the other end of a diode D2 is connected with the base electrode of a PNP type triode Q2, the emitter electrode of the PNP type triode Q2 is connected with the VCC end of the power supply voltage module, the collector electrode of a PNP type triode Q2 is connected with one end of the coil of a relay K2, the negative electrode of a diode D4 is connected between the collector electrode of the PNP type triode Q2 and the coil of the relay K1, the positive electrode of the diode D4 is grounded, the other end of the coil of the relay K2 is grounded, the movable contact of the relay K2 is connected with an interface J1, one of the stationary contacts of the relay K36.
4. The operating method of the induction type telescopic rain shielding device for the vehicle according to claim 3, wherein: the VIN of the motor voltage regulator is connected with a 24V power supply, the VOUT of the motor voltage regulator is connected with relays K1 and K2, and the GND end of the motor voltage regulator is grounded.
5. The operating method of the induction type telescopic rain shielding device for the vehicle according to claim 1, wherein: the power supply voltage module comprises a voltage stabilizer, a diode D5, a capacitor C4 and a switch S5, the voltage stabilizer is connected with the cathode of the diode D5, the voltage stabilizer is connected with the switch S5, the GND end of the voltage stabilizer is grounded, the anode of the diode D5 is connected with a 24V power supply, the capacitor C4 is connected between the VOUT end of the voltage stabilizer and the ground, and the output end of the switch S5 is a VCC end.
6. The operating method of the induction type telescopic rain shielding device for the vehicle according to claim 1, wherein: the crystal oscillator circuit comprises a second capacitor, a third capacitor and a crystal oscillator, one end of the second capacitor is grounded, the other end of the second capacitor is connected with the single chip microcomputer, one end of the third capacitor is grounded, the other end of the third capacitor is connected with the single chip microcomputer, and the crystal oscillator is connected between the second capacitor and the third capacitor.
7. The operating method of the induction type telescopic rain shielding device for the vehicle according to claim 1, wherein: the reset circuit comprises a fourth capacitor and a first resistor, one end of the fourth capacitor is connected with a VCC end of the power supply voltage module, the other end of the fourth capacitor is connected with the single chip microcomputer, one end of the first resistor is grounded, and the other end of the first resistor is connected with the single chip microcomputer.
8. The operating method of the induction type telescopic rain shielding device for the vehicle according to claim 1, wherein: the single chip microcomputer is an STC89C52 microcontroller.
9. The operating method of the induction type telescopic rain shielding device for the vehicle according to claim 1, wherein: the infrared photoelectric switch module comprises an infrared photoelectric sensor, an interface P1, an obstacle indicator light LED and a resistor R1, the infrared photoelectric sensor is installed on a rain shield and connected to an interface P1, a power supply voltage module is connected to the end 1 of the interface P1, the end 2 of the interface P1 is grounded, the power supply voltage module is connected to one end of the obstacle indicator light LED, the other end of the obstacle indicator light LED is connected with the resistor R1, and the resistor R1 is connected with the end 3 of the interface P1 and the single chip microcomputer.
10. The operating method of the induction type telescopic rain shielding device for the vehicle according to claim 1, wherein: the single chip microcomputer is also provided with a download port, and the download port is connected with the single chip microcomputer.
CN202010959578.5A 2020-09-14 2020-09-14 Working method of rain shielding device for vehicle based on induction type extension Pending CN112060885A (en)

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Application publication date: 20201211