Road sign system suitable for emergency lane open scene

Abstract

The utility model belongs to the technical field of traffic, and particularly relates to a road sign system suitable for an emergency lane open scene, which comprises a remote control center, a data acquisition module used for acquiring traffic data on a lane and an overturning sign, the overturning mark comprises an overturning mark body and a main control module arranged on the overturning mark body, and the remote control center is electrically connected with the main control module and the data acquisition module; the turnover sign body comprises a rectangular frame, a plurality of regular triangular prisms are rotationally arranged in the rectangular frame, and the regular triangular prisms are connected through a synchronous transmission assembly; the first layout, the second layout and the third layout of the regular triangular prism are respectively used for displaying different mark contents. The turnover sign provided by the utility model has a turnover function, so that different sign contents can be displayed according to different requirements; the problems that an existing invariable signboard does not have the overturning function and is not high in practicability are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of traffic safety facilities, and particularly relates to a road sign system applicable to the emergency lane opening scenario. Background Technique

[0002] The statements in this part only provide background technical information related to the utility model, and do not necessarily constitute prior art.

[0003] As an important part of the modern transportation system, expressways serve a large number of medium- and long-distance travel needs. However, in the case of road congestion, traffic accidents, etc., the existing lanes on the main line or ramps of expressways often cannot meet the vehicle passing needs, resulting in frequent traffic congestion. At present, in the sections with frequent expressway congestion, the emergency lane opening method can be adopted to relieve traffic congestion.

[0004] The current systems for the emergency lane opening function mainly include two categories: one uses a variable message sign, and when the emergency lane is opened and closed, corresponding information is prompted through an LED display screen, but this method is costly and difficult to be widely promoted and applied on a large scale.

[0005] The other category uses an immutable signboard, which is temporarily set beside the road by on-site personnel when the emergency lane needs to be opened and removed when the emergency lane is closed; however, this method of on-site personnel crossing the road to set up has relatively large safety hazards; at the same time, the immutable signboard does not have a flipping function and cannot automatically switch to display different layout contents; moreover, the existing immutable signboards are usually set at the opening position and the end position of the lane, and this device usually cannot give an advance notice of the emergency lane opening. Summary of the Utility Model

[0006] To overcome the deficiencies of the above-mentioned prior art, the utility model provides a road sign system applicable to the emergency lane opening scenario.

[0007] To achieve the above object, one or more embodiments of the utility model provide the following technical solutions:

[0008] The first aspect of the utility model provides a road sign system applicable to the emergency lane opening scenario, including: a remote control center, a data collection module for collecting traffic data on the lane, and a flipping sign;

[0009] The flipping sign includes a flipping sign body and a main control module arranged on the flipping sign body, and the remote control center is electrically connected to the main control module and the data collection module respectively;

[0010] The flipping sign body includes a rectangular frame, within which a plurality of regular triangular prisms are rotatably arranged and connected by a synchronous transmission component; a motor for driving the synchronous transmission component is provided on the rectangular frame; the main control module is electrically connected to the motor, and the first, second, and third surfaces of the regular triangular prism are respectively used to display different sign contents.

[0011] Further, the number of the flipping signs is multiple, including a pre-opening sign arranged in front of the starting point of the emergency lane opening, a formal opening sign arranged at the starting point of the emergency lane opening, a pre-closing sign arranged on the emergency lane, and a formal closing sign arranged at the closing position of the emergency lane.

[0012] Further, a mounting plate is provided above the interior of the rectangular frame, and the upper end of the central axis of the regular triangular prism passes through the mounting plate and is connected to the synchronous rotation component; the lower end of the central axis of the regular triangular prism is rotatably connected to a bearing arranged on the rectangular frame.

[0013] Further, the synchronous transmission component includes a first pulley, a second pulley, and a transmission belt; the first pulley and the second pulley are fixedly arranged on the upper end of the central axis of the regular triangular prism in sequence from top to bottom; the first pulley and / or the second pulley of adjacent regular triangular prisms are connected by a transmission belt, and the transmission belts are arranged alternately.

[0014] Further, the sign content includes text content and / or lane indication content.

[0015] Further, the flipping sign body is fixedly arranged on one side of the emergency lane through a rod and a foundation base.

[0016] Further, the main control module includes a single-chip microcomputer, a clock chip, a motor drive chip, and a communication module; the single-chip microcomputer is electrically connected to the clock chip, the motor drive chip, and the communication module respectively; the motor drive chip is electrically connected to the motor for driving the synchronous transmission component, and the communication module is electrically connected to the remote control center.

[0017] Further, a power module is further included, and the power module is electrically connected to the data acquisition module and the main control module on the flipping sign respectively.

[0018] Further, the data acquisition module is a millimeter-wave radar.

[0019] Further, the millimeter-wave radar is installed on both sides or above the emergency lane.

[0020] The above one or more technical solutions have the following beneficial effects:

[0021] (1) The flip sign provided by the present utility model has a flipping function. A plurality of triangular prisms inside the flip sign body are arranged in sequence and can rotate synchronously. By driving the plurality of triangular prisms to rotate synchronously through a motor, different sign contents can be displayed according to different requirements, solving the problem that the existing immutable signboards do not have a flipping function and have low practicability.

[0022] (2) The present utility model realizes multi-level early warning for the opening of the emergency lane by arranging a plurality of flip signs at intervals on the emergency lane. The plurality of flip signs are respectively used for indicating the pre-warning opening, official opening, pre-warning closing, and official closing of the emergency lane. By indicating the opening / closing of the emergency lane during a set time period or in special circumstances, the road facilities of the expressway can be reasonably utilized, and the traffic capacity of the expressway can be increased.

[0023] (3) The flip sign provided by the present utility model can automatically flip. A clock chip and a communication module are arranged inside the flip sign. It can not only remotely control the sign to flip but also control the sign to flip regularly. It can give pre-warnings for the temporary opening and closing of the emergency lane according to needs, without the need for on-site personnel to set it across the road.

[0024] The advantages of the additional aspects of the present utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the present utility model. Description of the Drawings

[0025] The specification drawings forming a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model.

[0026] Figure 1 It is a schematic diagram of a road sign system applicable to the emergency lane opening scenario in Embodiment 1.

[0027] Figure 2 It is an internal structure diagram of the flip sign body in Embodiment 1.

[0028] Figure 3 It is a top view of the flip sign body in Embodiment 1.

[0029] Figure 4 It is a usage schematic diagram of the flip sign in Embodiment 1.

[0030] Figures 5(a), 5(b), and 5(c) are respectively the three-level pre-warning signs in Embodiment 1.

[0031] Figures 5(d), 5(e), and 5(f) are respectively the official opening sign of the emergency lane, the upcoming closing sign of the emergency lane, and the official closing sign of the emergency lane in Embodiment 1.

[0032] Figure 6 It is the circuit diagram of the clock chip for Embodiment 1.

[0033] Figure 7 It is the circuit diagram of the motor drive chip for Embodiment 1.

[0034] In the figure, 1 is the flip sign body, 101 is the rectangular frame, 102 is the mounting plate, 103 is the regular triangular prism, 104 is the central axis, 105 is the first pulley, 106 is the second pulley, 107 is the transmission belt, 108 is the motor, 2 is the rod, 3 is the foundation base, and 4 is the solar panel. Specific Embodiment

[0035] The following further describes the present utility model in conjunction with the accompanying drawings and embodiments.

[0036] Embodiment 1

[0037] As Figure 1 shown, the present utility model proposes a road sign system applicable to the emergency lane opening scenario, including: a remote control center, a data acquisition module, and a flip sign;

[0038] The flip sign includes a flip sign body and a main control module arranged on the flip sign body. The remote control center is electrically connected to the main control module and the data acquisition module respectively;

[0039] The data acquisition module is used to collect traffic data on the lane and transmit it to the remote control center. The main control module is communicatively connected to the remote control center, and the main control module is used to drive the rotation of the triangular prism inside the flip sign body to realize the display of different layouts.

[0040] The number of flip signs is multiple, including a pre-opening sign arranged in front of the starting point of the emergency lane opening, a formal opening sign arranged at the starting point of the emergency lane opening, a pre-closing sign arranged in front of the closing position on the emergency lane, and a formal closing sign arranged at the closing position of the emergency lane; the structures of each sign are the same, and the difference lies in the different layout contents displayed by the signs.

[0041] The present utility model realizes multi-level pre-notification of the opening and closing of the emergency lane by respectively arranging flip signs before the starting point of the emergency lane opening, at the starting point position of the emergency lane opening, before the ending point of the emergency lane opening, and at the ending point position of the emergency lane opening, which are respectively used for prompting the pre-opening of the emergency lane, the formal opening position of the emergency lane, the upcoming closing of the emergency lane, and the formal closing position of the emergency lane.

[0042] As a further technical solution, the flipping flag body 1 includes a rectangular frame 101, and a plurality of regular triangular prisms 103 are rotatably arranged inside the rectangular frame 101. The plurality of regular triangular prisms 103 are sequentially connected by a synchronous rotation assembly; the first surface, the second surface, and the third surface of the regular triangular prism 103 are respectively used to display different flag contents.

[0043] Specifically, as Figure 2 , Figure 3 shown, a motor 108 for driving the regular triangular prism 103 to rotate is provided on the rectangular frame 101. The main control module is electrically connected to the motor 108, and the motor 108 is used to drive the synchronous transmission assembly; an installation plate 102 is provided above the interior of the rectangular frame 101. The upper part of the central axis 104 of the regular triangular prism 103 passes through the installation plate 102 and then is connected to the synchronous rotation assembly; the lower part of the central axis 104 of the regular triangular prism 103 is rotatably connected to a bearing provided on the rectangular frame 101, and the rotation of the central axis 104 drives the regular triangular prism 103 to rotate.

[0044] The synchronous rotation assembly includes a first belt pulley 105, a second belt pulley 106, and a transmission belt 107; the first belt pulley 105 and the second belt pulley 106 are sequentially and fixedly arranged from top to bottom on the upper end of the central axis 104 of the regular triangular prism 103; the first belt pulley 105 and / or the second belt pulley 106 of adjacent regular triangular prisms 103 are connected by a transmission belt 107, and the transmission belts 107 are alternately arranged so that adjacent regular triangular prisms 103 can rotate synchronously.

[0045] The regular triangular prisms 103 inside the rectangular frame 101 are arranged in sequence. A gear is fixedly provided on the output shaft of the motor 108. The output shaft gear of the motor 108 and the first belt pulley of the first regular triangular prism are in the same plane and are meshed; the second belt pulley of the first regular triangular prism is connected to the second belt pulley of the second regular triangular prism by a transmission belt; the first belt pulley of the second regular triangular prism is connected to the first belt pulley of the third regular triangular prism by a transmission belt. The connection structures of adjacent regular triangular prisms are analogized in turn and will not be elaborated here.

[0046] The motor drives the first belt pulley of the first regular triangular prism to rotate. The first belt pulley drives the second belt pulley to rotate. The second belt pulley drives the adjacent regular triangular prism to rotate through the transmission belt, thereby realizing the synchronous flipping of a plurality of regular triangular prisms.

[0047] The rectangular frame is an outer frame made of materials such as aluminum alloy. A transparent panel is embedded on the outer frame to protect the layout content and the like. A plurality of identical regular triangular prisms with axes in the same plane are provided inside the rectangular frame. The same flag content (a blank layout in this embodiment) is set on the same surface of the plurality of regular triangular prisms. The driving mechanism drives the regular triangular prisms to rotate by the same angle to realize the conversion of the displayed content.

[0048] In this embodiment, the regular triangular prism display panel does not show any marking content under normal conditions to avoid affecting the normal driving of highway drivers. According to actual needs, the regular triangular prism can be driven by a driving mechanism to flip a certain angle and then display indication information (in this embodiment, it is the sign and text allowing driving in the emergency lane), which is used to guide the driver.

[0049] After the information is displayed, drive the regular triangular prism to flip the same angle again to display the next set of information or return to the initial state (in this embodiment, it is to display that the emergency lane is about to close, stay for a period of time and then return to the initial position, showing a blank display panel). It can be understood that in this embodiment, the regular triangular prism can be rotated 120° each time to switch to the corresponding display panel, and this sign can display two or more different types of information.

[0050] As a further technical solution, as Figure 4 shown, the flip sign body 1 is fixedly arranged on one side of the emergency lane through the rod 2 and the foundation base 3; the upper end of the rod 2 is connected to the flip sign body 1, and the bottom end is fixedly arranged on the ground through the foundation base 3.

[0051] As a further technical solution, the sign content includes text content and / or lane indication content; the text content includes texts such as emergency lane preview opening, emergency lane officially opening, emergency lane about to close, and emergency lane prohibited from driving; the lane indication content is composed of three lane indication arrows arranged; the content of each regular triangular prism display panel can be combined according to requirements.

[0052] As shown in Figures 5(a), 5(b), and 5(c), three - level pre - warning of the official opening position of the emergency lane can be carried out by setting signs showing "Emergency lane opens X meters ahead" at three different positions in front of the starting point of the emergency lane opening; as shown in Figures 5(d), 5(e), and 5(f), three - level indication of the emergency lane opening and closing positions can be carried out by setting three flip signs at three different positions in front of the starting point of the emergency lane closing; signs for the official opening, about to close, and officially closing of the emergency lane are used to display the positions of the official opening, about to close, and officially closing of the emergency lane.

[0053] Under normal conditions, multiple flip signs (classified by function into pre - warning signs and indication signs) all display blank display panels; when it is necessary to open the emergency lane, the three pre - warning signs located 1000 meters, 500 meters, and 200 meters in front of the starting point of the emergency lane opening are respectively flipped to the three display panels in Figures 5(a), 5(b), and 5(c); the three indication signs located at the starting point of the emergency lane opening, in front of the emergency lane closing position, and at the emergency lane closing position are respectively flipped to the three display panels in Figures 5(d), 5(e), and 5(f).

[0054] When it is necessary to close the emergency lane, the 3 warning signs flip to the blank layout, and the 3 indication signs flip to the blank layout, restoring to the state of no indication information under normal conditions.

[0055] As a further technical solution, an angle sensor is also provided on the flipping sign body. The axis of the angle sensor is connected to the central axis of the first regular triangular prism through a coupling; a threaded hole is machined on the upper end face of the central axis of the regular triangular prism, and both ends of the coupling are in a threaded connection form, with one end connected to the angle sensor and the other end threadedly connected to the end of the central axis of the regular triangular prism.

[0056] The angle sensor can detect the rotation angle of the triangular prism. The output interface of the angle sensor is electrically connected to the main control module, and is used to transmit the detection signal of the rotation angle of the regular triangular prism to the main control module; then it is transmitted back to the remote control center through the communication module, and the display content of the current flipping sign can be determined through the rotation angle.

[0057] In this embodiment, the rotation angle of the flipping sign each time is 120 degrees; when the rotation angle is 0, it means the flipping sign shows a blank layout. When the rotation angle is 120 degrees, it means the flipping sign switches from the blank layout to another layout. When the rotation angle is 240 degrees, it means another layout switch has occurred. When the rotation angle is 360 degrees, the flipping sign returns to the blank layout display state again.

[0058] In this embodiment, the axis of the angle sensor is fixedly connected to the central axis of the triangular prism through a coupling, and the axis center of the rotating shaft of the angle sensor is coaxially arranged with the axis center of the central axis of the triangular prism; when the central axis of the triangular prism rotates, the angle sensor rotates synchronously.

[0059] In this embodiment, the model of the angle sensor is HAS860A high-precision angle sensor, and the detectable angle range is 0 - 360 degrees; this angle sensor uses Hall effect technology and operates using the magnetic field generated by a permanent magnet; it has multiple output interfaces such as RS232 and RS485, and can be used to connect to a single-chip microcomputer. In other preferred embodiments, the model of the angle sensor and the cooperation method between it and the central axis of the triangular prism can also be selected in other ways.

[0060] As a further technical solution, the main control module includes a single-chip microcomputer, a clock chip, a motor drive chip, and a communication module; the single-chip microcomputer is electrically connected to the power supply module, the clock chip, the motor drive chip, and the communication module respectively; the motor drive chip is electrically connected to the motor used to drive the synchronous transmission component, and the motor drive chip has a built-in motor drive circuit for realizing the forward and reverse rotation of the motor; the communication module is electrically connected to the remote control center.

[0061] The communication module can select an IoT card, a Bluetooth module, a WiFi module, etc. for wireless communication, or can also select a USB module to achieve short-distance wired communication.

[0062] The model of the single-chip microcomputer is STM32 single-chip microcomputer, which has the advantages of high performance, low cost and low power consumption; the I2C, UART / USART interfaces of the single-chip microcomputer are connected to the Internet of Things card, Bluetooth module, WiFi module, etc. to realize data exchange and communication with other devices.

[0063] The external clock signal provided by the clock chip is input into the STM32 single-chip microcomputer through the clock pin, and the internal processor of the STM32 single-chip microcomputer performs various operations according to the clock signal. By configuring the current date and time, initial date and time of timing, delay duration and other information on the clock chip, when the actual time reaches the timing time set by the clock chip, the single-chip microcomputer outputs a signal externally.

[0064] It should be noted that the models of the controller, clock chip and motor drive chip in this embodiment can be selected according to needs, and the existing technology adopted by the motor control method can be realized without involving the improvement of the software program.

[0065] As Figure 6 shown, the clock chip is used to provide calendar, clock information and timing information to the single-chip microcomputer. The model of the clock chip is PCF8563 I2C real-time clock / calendar chip.

[0066] The OSCI / OSCO pins of the clock chip are oscillator input / output pins respectively, and are connected to the crystal oscillator Y1; the crystal oscillator Y1 is used to provide a clock signal for the clock chip; the SCL and SDA pins are serial clock input pin and serial data I / O port respectively, and are connected to the clock pin and serial I / O port of the single-chip microcomputer through metal film resistors R1 and R2 respectively. The VDD pin is connected to the power supply terminal (+5V) and the button battery BT1 through diodes D1 and D2, and the diodes are used to prevent reverse current; the button battery BT1 is used to provide backup power for the clock chip. By setting the clock chip, the system supports the preset flag flip strategy and can automatically control the flag flip according to the time.

[0067] As a further technical solution, the model of the motor drive chip is a three-phase brushless DC motor drive chip BD63007MUV, which is used to drive the three-phase brushless DC motor to run.

[0068] The BD63007MUV drive chip has the advantages of low power consumption and low output on-resistance, and is built-in with an H-bridge drive circuit, which allows current to flow in two directions, thereby controlling the forward and reverse rotation of the motor.

[0069] As Figure 7 shown, pins 1 to 5 of the motor drive chip are grounded through resistors; the U, V, W three-phase pins (i.e., pins 7 to 12) are respectively connected to the three-phase connection terminals of the motor to drive the motor to rotate according to the correct phase sequence;

[0070] Pin 30 (pin BRKB), pin 32 (pin CW), and pin 34 (pin ENB) of the motor drive chip are respectively connected to the pulse sending ports (P0, P1, P2) of the single-chip microcomputer, and pin 31 (pin PWMB) is connected to the GPIO port of the single-chip microcomputer;

[0071] The PWM control signal of the motor drive chip is input through pin PWMB. The single-chip microcomputer controls the rotation angle, rotation speed, etc. of the DC motor by changing the duty cycle of the PWM control signal; pin BRKB is the motor braking pin, pin CW is the pin for controlling the rotation direction of the motor, and the rotation direction of the motor is controlled by the level high and low; pin ENB is the enable pin of the motor drive chip, and whether the chip is enabled is controlled by the level high and low.

[0072] As a further technical solution, the data acquisition module includes a millimeter-wave radar. The millimeter-wave radar is used to collect real-time traffic radar data. The data collected by the radar is uploaded to the remote control center for analysis and processing to determine whether the emergency lane is open according to the traffic operation status.

[0073] As a further technical solution, a power supply module is further included. The power supply module is electrically connected to the data acquisition module and the modules in the flip flag body, and is used to supply power to each module in the system.

[0074] The power supply module includes a solar panel 4 and a battery module. The solar panel 4 is arranged at the upper end of the rod through a bracket. The solar panel is electrically connected to the battery module. The solar panel is used to convert solar energy into electrical energy and store it in the battery module. The battery module is electrically connected to the main control module. The battery module is used to output a suitable amplitude voltage to supply power to the main control module.

[0075] Although the specific implementation manners of the present invention are described above in conjunction with the accompanying drawings, it is not a limitation to the protection scope of the present invention. Those skilled in the art should understand that based on the technical solutions of the present invention, various modifications or deformations that can be made by those skilled in the art without creative efforts are still within the protection scope of the present invention.

Claims

1. A road sign system applicable to the emergency lane opening scenario, characterized in that, Including: A remote control center, a data acquisition module for collecting traffic data on the lane, and a flipping sign; The flipping sign includes a flipping sign body and a main control module arranged on the flipping sign body. The remote control center is electrically connected to the main control module and the data acquisition module respectively; The flipping sign body includes a rectangular frame. A plurality of regular triangular prisms are rotatably arranged in the rectangular frame, and the plurality of regular triangular prisms are connected by a synchronous transmission component; A motor for driving the synchronous transmission component is arranged on the rectangular frame; The main control module is electrically connected to the motor. The first surface, the second surface and the third surface of the regular triangular prism are respectively used to display different sign contents.

2. The road sign system applicable to the emergency lane opening scenario according to claim 1, wherein The number of the flipping signs is multiple, including a pre-opening sign arranged in front of the starting point of the emergency lane opening, a formal opening sign arranged at the starting point of the emergency lane opening, a pre-closing sign arranged on the emergency lane, and a formal closing sign arranged at the closing position of the emergency lane.

3. The road sign system applicable to the emergency lane opening scenario according to claim 1, wherein An installation plate is arranged above the interior of the rectangular frame. The upper end of the central axis of the regular triangular prism passes through the installation plate and then is connected to the synchronous rotation component; The lower end of the central axis of the regular triangular prism is rotatably connected to a bearing arranged on the rectangular frame.

4. The road sign system applicable to the emergency lane opening scenario according to claim 1, characterized in that, The synchronous transmission component includes a first belt pulley, a second belt pulley and a transmission belt; The first belt pulley and the second belt pulley are fixedly arranged on the upper end of the central axis of the regular triangular prism in sequence from top to bottom; The first belt pulley and / or the second belt pulley of adjacent regular triangular prisms are connected by a transmission belt, and the transmission belts are arranged alternately.

5. The road sign system applicable to the emergency lane opening scenario according to claim 1, characterized in that, The sign content includes text content and / or lane indication content.

6. The road sign system applicable to the emergency lane opening scenario according to claim 1, wherein The flipping sign body is fixedly arranged on one side of the emergency lane through a rod and a foundation base.

7. A road sign system applicable to the emergency lane opening scenario according to claim 1, characterized in that The main control module includes a single-chip microcomputer, a clock chip, a motor drive chip and a communication module; The single-chip microcomputer is electrically connected to the clock chip, the motor drive chip and the communication module respectively; The motor drive chip is electrically connected to the motor for driving the synchronous transmission component, and the communication module is electrically connected to the remote control center.

8. The road sign system applicable to the emergency lane opening scenario according to claim 1, wherein It also includes a power supply module. The power supply module is electrically connected to the data acquisition module and the main control module on the flipping sign respectively.

9. The road sign system applicable to the emergency lane opening scenario according to claim 1, characterized in that, The data acquisition module is a millimeter-wave radar.

10. The road sign system applicable to the emergency lane opening scenario according to claim 9, wherein The millimeter-wave radar is installed on both sides or above the emergency lane.

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