Safety guidance system for access passage of underground garage

Abstract

The utility model relates to the field of underground garage access safety, in particular to an underground garage access channel safety guidance system. The induction system comprises a controller, at least two displacement sensors and at least two indicator lights; the underground garage access channel is provided with a blind area road section which is provided with at least two entrances and exits. Each entrance is provided with a displacement sensor and an indicator lamp; the controller is connected with all the displacement sensors and all the indicating lamps and used for controlling the indicating lamps at all the entrances and exits to turn on green lights or flicker as green lights when the displacement sensor at only one entrance and exit detects that a moving target enters the blind area road section; and when the displacement sensors of at least two entrances and exits detect that the moving target enters the blind area road section, the indicator lamps of the at least two entrances and exits are controlled to be red or flicker with red lights. According to the utility model, the opposite lane condition of the blind area road section of the underground garage access passage can be well prompted, and drivers and pedestrians are induced to safely pass through the underground garage access passage.

Description

Technical Field

[0001] The utility model relates to the field of underground garage entrance and exit safety, in particular to an underground garage entrance and exit passage safety induction system. Background Art

[0002] The entrance and exit passages of underground garages are generally long and narrow, and the lighting is generally dim. Most of them have blind spots such as bends and / or turns and / or uphill and downhill slopes and / or T-shaped roads and / or cross-shaped roads, which cause great inconvenience to drivers entering and exiting the underground garage.

[0003] This inconvenience is exacerbated by two-way access to underground garages. Due to dim lighting and limited visibility in blind spots, drivers and pedestrians are unaware of the presence of pedestrians or vehicles in the opposite lane, often driving slowly. This results in longer entry and exit times, and makes collisions, scrapes, and bruises more likely to occur.

[0004] Currently, to address this issue, safety convex mirrors are primarily placed at blind spots in two-way underground garage entrances and exits, at bends, intersections, and on uphill and downhill sections. However, underground garage entrances and exits are inherently poorly lit, and the distorted and narrow imaging range of safety convex mirrors makes them laborious to inspect and inconspicuous. As a result, most drivers don't bother checking the safety convex mirrors when passing through them, rendering them ineffective and failing to effectively address the existing issues. Summary of the Invention

[0005] The technical problem to be solved by the utility model is to overcome the defects of the existing technology and provide an underground garage entrance and exit safety guidance system, which can well prompt the conditions of the opposite lanes in the blind spots of the underground garage entrance and exit, guide drivers and pedestrians to pass through the underground garage entrance and exit safely, and improve the driving experience in the passage.

[0006] In order to solve the above technical problems, the technical solution of the utility model is: an underground garage entrance and exit safety guidance system, including a controller, at least two displacement sensors and at least two indicator lights; wherein,

[0007] The underground garage entrance and exit passage has a blind section, and the blind section has at least two entrances and exits;

[0008] Each entrance and exit is equipped with the displacement sensor and the indicator light;

[0009] The displacement sensor is used to detect whether a moving target enters the blind spot section from the entrance or exit where the displacement sensor is located;

[0010] The controller is connected to all displacement sensors and all indicator lights respectively, and is used to control the indicator lights of all entrances and exits to light green or flash green when the displacement sensor of only one entrance and exit detects that a moving object enters the blind spot section; and

[0011] When the displacement sensors of at least two entrances and exits detect that a moving target enters the blind spot section, the indicator lights of the at least two entrances and exits are controlled to light up red or flash red, and the indicator lights of the entrances and exits where no displacement sensors detect that a moving target enters the blind spot section are controlled to light up green or flash green.

[0012] In order to further improve the prompt effect, each entrance and exit is provided with at least two indicator lights at intervals along the direction in which the moving target enters the blind spot section.

[0013] Furthermore, the number of displacement sensors and indicator lights configured at each entrance and exit is equal, each displacement sensor corresponds to an indicator light, and the displacement sensor is installed near or on the corresponding indicator light.

[0014] A specific type of displacement sensor is further provided, wherein the displacement sensor is a microwave radar sensor, an infrared laser sensor, or a magnetic induction sensor.

[0015] A specific type of the first blind spot section is further provided, where the blind spot section is a curve with two entrances and exits.

[0016] In order to further make the indication information of the indicator lights at the entrance and exit of the curve easier to perceive, the indicator lights at the two entrances and exits of the curve are both installed on the outer circle side of the curve.

[0017] A specific type of a second blind spot section is further provided, where the blind spot section is a T-shaped road with three entrances and exits.

[0018] In order to make the indication information of the indicator lights at the entrance and exit of the T-shaped road more easily perceived, the T-shaped road includes a main road and a branch road perpendicular or oblique to the main road, and the branch road terminates at the intersection with the main road; wherein,

[0019] The indicator lights at the two entrances and exits of the main road are installed on the side of the main road away from the branch road.

[0020] A third specific type of blind spot section is further provided, wherein the blind spot section is a cross-shaped road with four entrances and exits.

[0021] A fourth specific type of blind spot section is further provided, wherein the blind spot section is an uphill and downhill road with two entrances and exits.

[0022] In order to further achieve the purpose of energy saving, the controller is also used to control all indicator lights to turn off when the displacement sensors at all entrances and exits do not detect any moving target entering the blind spot section.

[0023] After adopting the above technical solution, the utility model has the following beneficial effects:

[0024] 1. The indicator light in the present invention illuminates green or flashes green to indicate that there are no moving objects in the opposite lane of a blind spot, thereby reducing the tension and anxiety of pedestrians and vehicle drivers caused by obstructed vision and poor lighting, allowing them to pass through the blind spot smoothly. It illuminates red or flashes red to indicate that there are moving objects in the opposite lane of a blind spot, thus prompting pedestrians and vehicle drivers to proceed slowly, properly, and safely to avoid accidents. Therefore, the present invention can effectively serve as a warning and guidance for vehicles and pedestrians entering the blind spots of underground garage entrances and exits, assisting pedestrians and vehicles to safely pass through underground garage entrances and exits, especially the blind spots of underground garage entrances and exits.

[0025] 2. The utility model uses light indication with a wide range and is easy to detect. Drivers and pedestrians do not need to pay too much attention to know the situation of the opposite lane in the blind spot section. In addition, this guidance system is low in cost, the guidance rules are simple and easy to understand, and it is easy to implement and popularize. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a functional block diagram of the underground garage entrance and exit safety guidance system of the utility model;

[0027] Figure 2 This is a schematic diagram of the underground garage entrance and exit safety guidance system of the utility model installed in a blind road section (curve);

[0028] Figure 3 This is a schematic diagram of the underground garage entrance and exit safety guidance system of the utility model installed in a blind road section (T-shaped road);

[0029] Figure 4 This is a schematic diagram of the underground garage entrance and exit safety guidance system of the utility model installed in a blind road section (cross-shaped road);

[0030] In the figure, 1, controller; 2, displacement sensor; 3, indicator light; 4, blind spot section; 40, entrance and exit; 4a, curve; 4b, T-shaped road; 41b, main road; 42b, branch road; 4c, cross road; 5, underground garage; 6, moving target;

[0031] Figure 2 (a) is a schematic diagram showing that only the entrance and exit of the underground garage has vehicles entering the curve;

[0032] Figure 2 (b) is a schematic diagram showing that only the entrance and exit of the underground garage has vehicles entering the curve;

[0033] Figure 2 (c) is a schematic diagram showing a vehicle entering a curve at the entrance and exit serving as an exit from an underground garage and at the entrance and exit serving as an entrance to an underground garage at the same time;

[0034] Figure 2 (d) is a schematic diagram showing that there are no vehicles entering the curve at both the entrance and exit serving as the exit for driving into the underground garage and the entrance and exit serving as the entrance for driving into the underground garage;

[0035] Figure 3 (a) is a schematic diagram of a T-shaped road with only one entrance and exit;

[0036] Figure 3 (b) is a schematic diagram of a T-shaped road with only two entrances and exits and vehicles entering;

[0037] Figure 3 (c) is a schematic diagram of vehicles entering the T-shaped road at three entrances and exits simultaneously;

[0038] Figure 3 (d) is a schematic diagram of a T-shaped road with no vehicles entering any of the three entrances and exits;

[0039] Figure 4 (a) is a schematic diagram of a cross-shaped road with only one entrance and exit;

[0040] Figure 4 (b) is a schematic diagram of a cross-shaped road with only two entrances and exits and vehicles entering;

[0041] Figure 4 (c) is a schematic diagram of a cross-shaped road with only three entrances and exits simultaneously;

[0042] Figure 4 (d) is a schematic diagram of vehicles entering the cross-shaped road at the same time from four entrances and exits;

[0043] Figure 4 (e) is a schematic diagram of a cross-shaped road with no vehicles entering from any of the four entrances and exits. DETAILED DESCRIPTION

[0044] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings.

[0045] like Figures 1 to 4 As shown, a safety guidance system for entrance and exit passages in an underground garage includes a controller 1, at least two displacement sensors 2 and at least two indicator lights 3; wherein,

[0046] The access passage of the underground garage 5 has a blind section 4, and the blind section 4 has at least two entrances and exits 40;

[0047] Each entrance and exit 40 is equipped with a displacement sensor 2 and an indicator light 3;

[0048] The displacement sensor 2 is used to detect whether a moving target 6 enters the blind road section 4 from the entrance or exit 40 where it is located;

[0049] The controller 1 is connected to all the displacement sensors 2 and all the indicator lights 3 respectively, and is used to control the indicator lights 3 of all the entrances and exits 40 to light up green or flash green when the displacement sensor 2 of only one entrance and exit 40 detects that a moving object 6 enters the blind section 4; and

[0050] When the displacement sensors 2 of at least two entrances and exits 40 detect that a moving target 6 enters the blind spot section 4, the indicator lights 3 of the at least two entrances and exits 40 are controlled to light up red or flash red, and the indicator lights 3 of the entrances and exits 40 where no displacement sensor 2 detects that a moving target 6 enters the blind spot section 4 are controlled to light up green or flash green.

[0051] The moving target 6 can be a moving vehicle, a pedestrian, or even an animal such as a cat or dog. The controller 1 can be wirelessly connected to all displacement sensors 2 and all indicator lights 3 via a mesh network. The controller can be an MCU, such as an STM32F103RCT6, or an FPGA. When controlling the flashing of the green or red light, different flashing frequencies can be selected based on the distance of the moving target 6.

[0052] Specifically, the indicator light 3 in this embodiment illuminates green or flashes green to indicate that there are no moving objects 6 in the opposite lane of the blind spot section 4, thereby alleviating the anxiety and tension caused by obstructed vision and poor lighting conditions for pedestrians and vehicle drivers, allowing them to navigate the blind spot section 4 smoothly. It also illuminates red or flashes red to indicate that there are moving objects 6 in the opposite lane of the blind spot section 4, prompting pedestrians and vehicle drivers to proceed slowly, properly, and safely to avoid accidents. Therefore, this embodiment effectively serves as a warning and guidance system for vehicles and pedestrians entering the blind spot section 4 of underground garage entrances and exits, assisting them in safely navigating underground garage entrances and exits, particularly the blind spot section 4 of underground garage entrances and exits. Furthermore, the light indication has a wide range and is easily perceived, allowing drivers and pedestrians to be aware of the conditions in the opposite lane of the blind spot section 4 without paying too much attention. This guidance system is low-cost, has simple and easy-to-understand guidance rules, and is easy to implement and popularize.

[0053] In one embodiment, each entrance and exit 40 is provided with at least two indicator lights 3 spaced along the direction in which the moving object 6 enters the blind spot section 4. The number of indicator lights 3 can be determined based on the length of the entrance and exit 40 and can be arranged at equal or unequal intervals. It is best to ensure that the indication information of at least one indicator light at each entrance and exit 40 is visible to pedestrians or vehicles entering the blind spot section 4. If the blind spot section 4 is long, additional corresponding slave devices may be configured.

[0054] In one embodiment, Figures 1 to 4 As shown, the number of displacement sensors 2 and indicator lights 3 configured for each entrance and exit 40 is equal, each displacement sensor 2 corresponds to an indicator light 3, and the displacement sensor 2 is installed near the corresponding indicator light 3 or installed on the corresponding indicator light 3. Preferably, the displacement sensor 2 is preferably installed in the corresponding indicator light 3. In this way, the difficulty of installing the entire underground garage entrance and exit safety guidance system on the blind road section 4 can be reduced. In addition, the displacement sensor can also share a power supply with the indicator light 3. In order to further reduce the difficulty of installation and debugging the indicator light 3, a mark can also be set on the outer surface of the indicator light 3. When installing the indicator light 3, align the mark with the entrance and exit 40, and the displacement sensor 2 can accurately and well perform its role.

[0055] Of course, the number of displacement sensors 2 and indicator lights 3 at each entrance and exit 40 can be different. The number of displacement sensors 2 and indicator lights 3 can be appropriately set based on the specific direction, detection difficulty, and length of the entrance and exit 40. In this case, the displacement sensors 2 can be installed with the indicator lights 3 or installed independently of the indicator lights 3 at the entrance and exit 40. If the former is the case, two types of indicator lights 3 are required: one with a displacement sensor 2 and one without.

[0056] In one embodiment, displacement sensor 2 is a microwave radar sensor. Microwave radar sensors are conventional in the art and will not be described in detail here. Model RKB1125B5 is an example. Displacement sensor 2 can also be other types of displacement sensors, such as an infrared laser sensor (TF02-X) or a magnetic induction sensor.

[0057] In one embodiment, the controller 1 is further configured to control all indicator lights 3 to turn off when the displacement sensors 2 at all entrances and exits 40 do not detect that a moving object 6 has entered the blind road section 4. This can save electricity.

[0058] The solutions involved in the above embodiments are described in detail below in conjunction with specific embodiments.

[0059] Example 1

[0060] like Figure 2As shown, the blind spot section 4 of the entrance and exit passage to the underground garage 5 is a curve 4a, with two entrances and exits 40 for mobile objects 6 to enter the curve 4a: the underground garage exit and the underground garage entrance. Vehicles about to leave the underground garage 5 enter the curve 4a through the underground garage exit, while vehicles from outside entering the underground garage 5 enter the curve 4a through the underground garage entrance.

[0061] like Figure 1 and Figure 2 As shown, each entrance and exit 40 is respectively equipped with a displacement sensor 2 and an indicator light 3 . The displacement sensor 2 is installed in the indicator light 3 of the entrance and exit 40 where it is located. The displacement sensor 2 and the indicator light 3 are respectively wirelessly connected to the controller 1 .

[0062] like Figure 2 (a) and Figure 2 As shown in (b), when the displacement sensor 2 of only one entrance and exit 40 detects that a moving target 6 enters the curve 4a, the indicator lights 3 of the two entrances and exits 40 turn on the green light or flash green light. The duration of the green light or flashing green light can be determined according to the length of the curve 4a, etc.

[0063] like Figure 2 As shown in (c), when the displacement sensors 2 of the two entrances and exits 40 detect that a moving target 6 enters the curve 4a, the indicator lights 3 of the two entrances and exits 40 turn on the red light or flash the red light. The duration of the red light or the flashing red light can be determined according to the length of the curve 4a, etc.

[0064] like Figure 2 As shown in (d), when the displacement sensors 2 of the two entrances and exits 40 do not detect that the moving object 6 enters the curve 4a, the indicator lights of the two entrances and exits 40 are turned off.

[0065] It should be noted that when a moving target 6 enters the curve 4a at each of the two entrances and exits 40, it is unlikely that the displacement sensors 2 of the two entrances and exits 40 will detect the moving target 6 entering the curve 4a at the same time. As long as the displacement sensor 2 of one entrance and exit 40 detects the moving target 6 entering the curve 4 within a preset time before the displacement sensor 2 of the other entrance and exit 40 also detects the moving target 6 entering the curve 44a, it is considered that the displacement sensors 2 of the two entrances and exits 40 have both detected the moving target 6 entering the curve 4a. Figure 2 (a) and Figure 2 Situation (b) also satisfies this restriction, that is, when the displacement sensor 2 of one entrance and exit 40 detects that a moving target 6 enters the curve 4a, as long as the displacement sensor 2 of another entrance and exit 40 does not detect that a moving target 6 enters the curve 4a within a preset time period before this moment, the condition that only the displacement sensor 2 of one entrance and exit 40 detects that a moving target 6 enters the curve 4a is satisfied.

[0066] like Figure 2 As shown, in order to maximize the ability of moving objects 6 at both entrances and exits 40 to simultaneously see the indications of the indicator lights 3 at both entrances and exits 40, the indicator lights 3 at both entrances and exits 40 of the curve 4a are installed on the outer side of the curve 4a. Of course, if the curve 4a is relatively long, multiple indicator lights 3 at each entrance and exit 40 can be installed at intervals.

[0067] Example 2

[0068] like Figure 3 As shown, the blind spot section 4 of the entrance and exit passage of the underground garage 5 is a T-shaped road 4b with three entrances and exits 40. Two of these serve as exits, and the third serves as the entrance. Vehicles about to leave the underground garage 5 enter the T-shaped road 4b through the exit, while vehicles from outside entering the garage enter the T-shaped road 4b through the entrance.

[0069] like Figure 1 and Figure 3 As shown, each entrance and exit 40 is respectively equipped with a displacement sensor 2 and an indicator light 3 . The displacement sensor 2 is installed in the indicator light 3 of the entrance and exit 40 where it is located. The displacement sensor 2 and the indicator light 3 are respectively wirelessly connected to the controller 1 .

[0070] After a vehicle in the underground garage 5 enters the T-shaped road 4b through one of the underground garage exits, it may not exit the T-shaped road 4b from the underground garage entrance, and may re-enter the underground garage 5 from another underground garage exit, so the various entrances and exits 40 are not distinguished here.

[0071] like Figure 3 As shown in (a), when the displacement sensor 2 of only one entrance and exit 40 detects that a moving target 6 enters the curve 4a, the indicator lights 3 of the three entrances and exits 40 light up green or flash green. The duration of the green light or flashing green light can be determined according to the length of the curve 4a, etc.

[0072] like Figure 3 As shown in FIG. 2( b ), when the displacement sensors 2 at two entrances and exits 40 detect that a moving object 6 has entered the curve 4a, the indicator lights 3 at these two entrances and exits 40 light up red or flash red. The duration of the red or flashing red light can be determined based on the length of the T-shaped road 4b. The indicator light at the other entrance and exit 40 lights up green or flashes green. The duration of the green or flashing green light can be determined based on the length of the T-shaped road 4b.

[0073] like Figure 3As shown in (c), when the displacement sensors 2 of the three entrances and exits 40 detect that a moving target 6 has entered the T-shaped road 4b, the indicator lights 3 of the three entrances and exits 40 light up red or flash red. The duration of lighting up red or flashing red can be determined according to the length of the T-shaped road 4b, etc.

[0074] like Figure 3 As shown in (d), when the displacement sensors 2 of the three entrances and exits 40 do not detect that the moving object 6 enters the T-shaped road 4b, the indicator lights of the three entrances and exits 40 are all turned off.

[0075] like Figure 3 As shown, the T-shaped road 4b includes a main road 41b and a branch road 42b perpendicular to or obliquely intersecting the main road 41b, and the branch road 42b terminates at the intersection with the main road 41b; in order to enable the moving targets 6 at the three entrances and exits 40 to see the indications of the indicator lights 3 of the three entrances and exits 40 at the same time as much as possible, the indicator lights 3 of the two entrances and exits 40 of the main road 41b are installed on the side of the main road 41b away from the branch road 42b.

[0076] In this embodiment, when the displacement sensor 2 with several entrances and exits 40 detects that a moving target 6 enters the T-shaped road 4b from the entrance and exit 40 where the displacement sensor 2 is located, the determination method is similar to that in the first embodiment.

[0077] Example 3

[0078] like Figure 4 As shown, the blind spot section 4 of the entrance and exit passage of the underground garage 5 is a cross-shaped road 4c with four entrances and exits 40. Two of these serve as exits, and the other two serve as entrances. Vehicles about to leave the underground garage 5 enter the cross-shaped road 4c through the exits, while vehicles from outside entering the garage enter the cross-shaped road 4c through the entrances.

[0079] like Figure 1 and Figure 4 As shown, each entrance and exit 40 is respectively equipped with a displacement sensor 2 and an indicator light 3 . The displacement sensor 2 is installed in the indicator light 3 of the entrance and exit 40 where it is located. The displacement sensor 2 and the indicator light 3 are respectively wirelessly connected to the controller 1 .

[0080] After a vehicle in the underground garage 5 enters the cross-shaped road 4c through one of the underground garage exits, it may not exit the cross-shaped road 4c from the underground garage entrance, and may re-enter the underground garage 5 from another underground garage exit, so no distinction is made here between the various entrances and exits 40.

[0081] like Figure 4As shown in (a), when the displacement sensor 2 of only one entrance and exit 40 detects that a moving target 6 enters the cross-shaped road 4b, the indicator lights 3 of the four entrances and exits 40 turn on the green light or flash green light. The duration of the green light or flashing green light can be determined according to the length of the cross-shaped road 4b, etc.

[0082] like Figure 4 As shown in Figures 4(b) and 4(c), when the displacement sensors 2 at two or three of the entrances and exits 40 detect that a moving object 6 has entered the cross-shaped road 4b, the indicator lights 3 at these two or three entrances and exits 40 light up red or flash red. The duration of the red or flashing red light can be determined based on the length of the T-shaped road 4b. The indicator lights at the remaining entrances and exits 40 light up green or flash green. The duration of the green or flashing green light can be determined based on the length of the T-shaped road 4b.

[0083] like Figure 4 As shown in (d), when the displacement sensors 2 of the four entrances and exits 40 detect that a moving target 6 has entered the T-shaped road 4b, the indicator lights 3 of the four entrances and exits 40 light up red or flash red. The duration of lighting up red or flashing red can be determined based on the length of the T-shaped road 4b, etc.

[0084] like Figure 4 As shown in (e), when the displacement sensors 2 of the four entrances and exits 40 do not detect that the moving object 6 enters the T-shaped road 4b, the indicator lights of the four entrances and exits 40 are all turned off.

[0085] In this embodiment, when the displacement sensor 2 having several entrances and exits 40 detects that a moving target 6 enters the cross-shaped road 4c from the entrance and exit 40 where the displacement sensor 2 is located, the determination method is similar to that of the first and second embodiments.

[0086] Example 5

[0087] The difference between this embodiment and the first embodiment is that the blind spot road section 4 is an uphill and downhill road and also has two entrances and exits 40 .

[0088] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A safety guidance system for access passages in underground garages, characterized in that: It comprises a controller (1), at least two displacement sensors (2) and at least two indicator lights (3); wherein, An access passage of an underground garage (5) has a blind section (4), and the blind section (4) has at least two entrances and exits (40); Each entrance and exit (40) is equipped with the displacement sensor (2) and the indicator light (3); The displacement sensor (2) is used to detect whether a moving target (6) enters the blind road section (4) from the entrance or exit (40) where the displacement sensor is located; The controller (1) is connected to all displacement sensors (2) and all indicator lights (3) respectively, and is used to control the indicator lights (3) of all entrances and exits (40) to light green or flash green when the displacement sensor (2) of only one entrance and exit (40) detects that a moving object (6) enters the blind road section (4); When the displacement sensors (2) of at least two entrances and exits (40) detect that a moving target (6) has entered the blind road section (4), the indicator lights (3) of the at least two entrances and exits (40) are controlled to light up red or flash red, and the indicator lights (3) of the entrances and exits (40) where no displacement sensors (2) have detected that a moving target (6) has entered the blind road section (4) are controlled to light up green or flash green.

2. The underground garage entrance and exit safety guidance system according to claim 1 is characterized in that: Each entrance and exit (40) is provided with at least two indicator lights (3) at intervals along the direction in which the moving object (6) enters the blind road section (4).

3. The underground garage access safety guidance system according to claim 1 or 2, characterized in that: Each entrance and exit (40) is equipped with an equal number of displacement sensors (2) and indicator lights (3), each displacement sensor (2) corresponds to an indicator light (3), and the displacement sensor (2) is installed near or on the corresponding indicator light (3).

4. The underground garage entrance and exit safety guidance system according to claim 1 is characterized in that: The displacement sensor (2) is a microwave radar sensor, an infrared laser sensor, or a magnetic induction sensor.

5. The underground garage entrance and exit safety guidance system according to claim 1 is characterized in that: The blind road section (4) is a curve (4a) having two entrances and exits (40).

6. The underground garage entrance and exit safety guidance system according to claim 5 is characterized in that: The indicator lights (3) of the two entrances and exits (40) of the curve (4a) are both installed on the outer circle side of the curve (4a).

7. The underground garage entrance and exit safety guidance system according to claim 1 is characterized in that: The blind road section (4) is a T-shaped road (4b) having three entrances and exits (40).

8. The underground garage entrance and exit safety guidance system according to claim 7, characterized in that: The T-shaped road (4b) comprises a main road (41b) and a branch road (42b) perpendicular to or obliquely intersecting the main road (41b), wherein the branch road (42b) terminates at an intersection with the main road (41b); The indicator lights (3) of the two entrances and exits (40) of the main road (41b) are installed on the side of the main road (41b) away from the branch road (42b).

9. The underground garage entrance and exit safety guidance system according to claim 1, characterized in that: The blind spot road section (4) is a cross-shaped road (4c) having four entrances and exits (40); Alternatively, the blind road section (4) is an uphill and downhill road with two entrances and exits (40).

10. The underground garage entrance and exit safety guidance system according to claim 1, characterized in that: The controller (1) is also used to control all indicator lights (3) to turn off when the displacement sensors (2) at all entrances and exits (40) detect that a moving target (6) enters the blind road section (4).

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