RU185046U1 - CONTROL DEVICE FOR MOBILE VILLAGE CITY WITH SYNCHRONIZATION BY RADIO SIGNAL AND REMOTE CONTROL - Google Patents

Abstract

The technical solution relates to methods for wireless control of devices and their synchronization, namely, to a remote control method and to ensure the synchronization of wireless training traffic lights, which are used to propagate traffic rules at a regulated intersection. Technical result: synchronization and control of switching traffic signals at a traffic light object is provided ( adjustable intersection) using: a radio transmitter, radio receiver, programmable microcontroller for each traffic light rack and remote control. The operator has the ability to switch the mode of operation of the intersection, usually consisting of 4 traffic and 12 pedestrian traffic lights, from the remote control from any traffic light that has fixed this signal.

Description

The technical solution relates to methods for wireless control of devices and their synchronization, namely, to a remote control method and to ensure synchronization of wireless training traffic lights, which are used to propagate traffic rules at a regulated intersection.

The purpose of the technical solution is to create control devices built into traffic lights for a mobile car park. The operator controls the adjustable intersection using the remote control.

Known inventions / 1, 2, 3 / relating to the technique of light control for controlling urban traffic, which are difficult to use to achieve the above goals, since the invention does not have mobility, autonomy and the declared ability to remote control.

The level of modern technology: hardware circuitry solutions are transferred to the plane of the program code. Known patents for wireless device control in various industries.

The known method / 4 / remote control device for electromagnetic non-contact therapy, in which the connection is unidirectional and there is no synchronization, which deprives this method of the ability to control at least four identical devices and their synchronization.

A known method and device / 5 / to prevent collisions in the sensor network. The method includes transmitting data using a transmitter; comparison by the transmitter of the remaining time between data transmission and the grace period with the rotation time, which is transmitted to the transmitter from the transmission mode (Tx) to the reception mode (Rx); selectively transmitting a busy signal by the transmitter indicating that the channel is being used in accordance with the comparison result; and receiving, by the transmitter, a confirmation signal (ACK) from the receiver after the rotation time has elapsed.

Due to the use of a small number of devices (usually 4) and a relatively long period between traffic signal synchronization (1.5 sec.), There is no need to use a message reception-response protocol, i.e. busy and acknowledgment signals are not transmitted. Instead, this technical solution uses messages with a length of 24 bits, which is sufficient to transmit the state of the traffic light with an error of further switching the traffic signal in 0.01 sec.

The task to which the claimed technical solution is directed is to provide the following operating mode of a mobile training intersection:

- Offline: switching traffic signals at the intersection is done automatically.

- Night: flashing yellow traffic signals.

- Manual: the traffic signals are switched by the user using the manual module of the remote control.

- “Special”: the inclusion of permissive signals of pedestrian traffic lights is accompanied by an audible signal (the function is intended for people with visual impairments).

The microcontroller provides synchronization and control of switching traffic signals at a traffic light object (adjustable intersection) wirelessly and provides for switching traffic signals in the mode specified from the control panel.

This problem is solved due to the fact that in each separate traffic light (traffic light rack), a radio transmitter, a radio receiver (in the RF range of 433 MHz) and a microcontroller programmed in accordance with the block diagram of the algorithm in FIG. 1. Microcontrollers are programmed in 2 versions:

1) the main one (the control device is installed on a traffic light, the traffic light of which regulates lane number 1 at the intersection);

2) perpendicular (the control device is installed on a traffic light, the traffic light of which regulates at the intersection the perpendicular lane to lane number 1).

The technical result is the provision of synchronization and control of switching traffic signals at a traffic light object (adjustable intersection) and switching of traffic signals in the mode set from the control panel: turn on / off LEDs, increase / decrease speed, switch mode, turn on / off sound.

In FIG. 1 illustrates the algorithm of the microcontroller:

1. The function of the main loop of the microcontroller program.

2. Management of LEDs and sound emitter. Traffic Light Modes:

- 0 - green,

- 1 - yellow,

- 2 - red,

- 3 - red when at 90 gr. (opposite) yellow,

- 4 - not used,

- 5 - off

- 6 - night mode, yellow on,

- 7 - night mode, yellow off.

If the counter constant is true, then this is the main version of the microcontroller program.

If the counter constant is false, this is the perpendicular version of the microcontroller program.

3. Signal processing from the radio. Synchronization.

4. Transmission of 24 bits of system status by a radio transmitter.

5. The 24 bits of the signal used to synchronize the devices are displayed:

In FIG. 2 illustrates the technical implementation of the device. The diagram shows the connection of the following devices:

1. Atmega328 microcontroller on the Arduino Nano 3 (CH340G) board.

2. RX 433 MHz signal receiver.

3. TX 433 MHz signal transmitter.

4. Traffic light (obverse or reverse mode).

5. Pedestrian traffic light No. 1, operating simultaneously with the transport.

6. Pedestrian traffic light No. 2, providing control of the perpendicular lane to the pedestrian traffic light No. 1.

7. Traffic light.

8. ULN2003AN - Matrix of seven Darlington transistors, 500 mA.

9. The remote control.

10. Battery, 12V.

11. Sound emitter (Buzzer).

The device is controlled by the RF signal 433MHz from the respective remote controls.

The device operates as follows. When connected to a power source, each traffic light starts working in night mode (flashing yellow mode). When you hold the On button on the remote control for about 2 seconds, the intersection switches to automatic mode (20 seconds, by default, switches from green). Other remote controllers with these traffic lights will not work until the device is turned off / on. The operator has the ability to control an adjustable intersection using the remote control.

Custom Remote Control Button Functions:

16 remote controls are involved (digital values corresponding to the received signal from the power buttons of each remote control are shown): 15878913, 10657537, 1728769, 10584321, 2675713, 10532097, 7946241, 1007617, 16646913, 6848769, 10227201, 14619649, 30209, 16217089, 11569617.

Claims (2)

1. A control device, characterized in that it consists of a radio transmitter, a radio receiver and a programmable microcontroller; It is installed in each separate traffic light and provides wireless synchronization and control of switching traffic signals at a traffic light object from the remote control. 2. The control device according to claim 1, characterized in that it automatically establishes a synchronous mode of operation with the same control device.

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