Blind person traffic signal lamp auxiliary device based on low-power-consumption Bluetooth RSSI

Abstract

The utility model discloses a blind person traffic signal lamp auxiliary device based on low-power-consumption Bluetooth RSSI, and belongs to the field of barrier-free auxiliary equipment.The blind person traffic signal lamp auxiliary device comprises a user side and further comprises a signal lamp side, the signal lamp side comprises a mounting base, a hoop, a shell and a cover plate, and the hoop is used for being detachably connected with a traffic signal lamp; the mounting base is arranged on one side of the shell and provided with a clamping groove for the hoop to stretch into, a communication module is arranged in the shell, and a sealing ring is arranged between the shell and the cover plate. According to the utility model, by adopting a multi-beacon cooperative positioning and path prediction mode, the positioning error is reduced, and the use is reliable; through clamping cooperation of the clamping groove and the clamping hoop, the shell on the mounting seat can be stably mounted on the traffic signal lamp, and the shell can be conveniently disassembled and assembled, so that maintenance is facilitated, and maintenance convenience is improved; the waterproof effect can be improved through the sealing ring, damage to elements such as the communication module caused by water entering the shell is effectively avoided, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of barrier-free auxiliary equipment especially a blind person traffic signal lamp auxiliary device based on low power consumption bluetooth RSSI. BACKGROUND

[0002] With the acceleration of urbanization process and the increasing complexity of traffic system, blind people and visually impaired people face many challenges in the process of travel, especially when passing through traffic intersection, it is difficult to accurately obtain signal lamp state information, and there is a great safety hazard. The traditional blind traffic auxiliary facilities, such as voice prompt device, although provide help to a certain extent, but its installation and maintenance cost is high, and it is greatly disturbed by environmental noise, and the applicability is limited.

[0003] The applicant obtains the following prior art through retrieval, specifically, the patent with publication number CN207216860U discloses a traffic signal blind person sensor, which comprises an elastic headband, a camera, an external data line, a data power connector, an earphone connector, an earphone wire, an earphone, a GPS blind person navigator, an elastic arm band, a control switch, a data power interface and an earphone jack, the camera is fixedly arranged on the elastic headband, and the elastic headband is provided with the earphone wire on the left side, one end of the earphone wire is connected with the earphone, the traffic signal blind person sensor loads navigation software and a GPS locator in the existing GPS blind person navigator, carries out accurate positioning, the user can freely travel according to the prompt of the navigation, when reaching the traffic intersection, according to the prompt of the navigation software in the GPS blind person navigator, the camera on the headband is indirectly moved by slowly rotating the head to scan and identify the intersection signal lamp, and the user is prompted whether to pass through the intersection, the whole device is simple to wear, convenient to use, and high in intelligent degree, and can provide great help for the traffic of blind people.

[0004] From the above patent, it can be seen that the traffic signal blind person sensor can prompt the user whether to pass through the intersection when the blind person or visually impaired person reaches the traffic intersection, and the whole device is simple to wear, and provides great help for the travel of blind people, but in the actual use process, since the traffic intersection scene is relatively complex and signal shielding exists, the GPS positioning is prone to drift, the positioning error is large, and the use reliability is reduced. In addition, the blind person auxiliary crossing equipment arranged on the traffic signal lamp in the prior art also has the problems of inconvenient installation and reduced maintenance convenience. UTILITY MODEL CONTENTS

[0005] The main purpose of the utility model is to provide a blind person traffic signal lamp auxiliary device based on low power consumption bluetooth RSSI, which aims to solve the problems of large positioning error of the existing blind person traffic signal lamp auxiliary device, reduced use reliability and maintenance convenience.

[0006] In order to achieve the above object, the utility model provides a kind of blind traffic signal lamp auxiliary device based on low-power bluetooth RSSI, including user end and signal lamp end being set on traffic signal lamp, the signal lamp end includes mounting seat, clamp, shell and the cover plate being detachably connected with the shell, the clamp is used to be detachably connected with traffic signal lamp, the mounting seat is set on the side of the shell and is opened with the clamping groove for the clamp to extend into, the shell is provided with the communication module for sending signal to user end, and sealing ring is arranged between the shell and the cover plate.

[0007] Preferably, the mounting seat is detachably connected with the shell, the opposite sides of the mounting seat extend away from the shell and are bent to form clamping portions, the two clamping portions are arranged outwardly along the circumference of the clamp, and the clamping portions are provided with the clamping grooves.

[0008] Preferably, a plurality of insertion holes are uniformly and spacedly formed on the outer wall of the clamp along the circumference thereof, and limiting portions for extending into the insertion holes are formed on the two clamping portions.

[0009] Preferably, an opening for accommodating the communication module is formed on the side of the shell away from the mounting seat, a plurality of mounting holes are arranged in a rectangular array at the opening, and a fastener is arranged on the cover plate at a position corresponding to each of the mounting holes.

[0010] Preferably, a protrusion is formed on the opening along the circumference of the shell, the sealing ring is sleeved on the outer wall of the protrusion, and a recess is formed on the cover plate at a position corresponding to the protrusion.

[0011] Preferably, an identification structure is formed on the side of the cover plate away from the shell.

[0012] Preferably, a waterproof cable interface is arranged on the shell.

[0013] Beneficial effects:

[0014] 1. Compared with the existing blind traffic signal lamp auxiliary device adopting the GPS positioning mode, the blind traffic signal lamp auxiliary device based on low-power bluetooth RSSI greatly reduces the positioning error of blind people or visually impaired people at the intersection by adopting the multi-beacon cooperative positioning and path prediction mode, and improves the position accuracy and use reliability.

[0015] 2. The blind traffic signal lamp auxiliary device based on low-power bluetooth RSSI can realize quick connection of the mounting seat and the clamp through the clamping and matching of the clamping groove and the clamp, can stably install the shell on the traffic signal lamp, is convenient for disassembling the shell, is convenient for maintenance, improves the maintenance convenience, and is reliable in use.

[0016] 3.The traffic signal lamp auxiliary device for the blind people based on low-power Bluetooth RSSI has the sealing ring arranged between the shell and the cover plate, so that the waterproof effect is improved, the communication module and other elements are prevented from being damaged due to water entering the shell during use, and the service life is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] Figure 1 is a structural schematic diagram of the traffic signal lamp auxiliary device for the blind people based on low-power Bluetooth RSSI in a first view according to an embodiment of the present application;

[0019] Figure 2 is an exploded view of the traffic signal lamp auxiliary device for the blind people based on low-power Bluetooth RSSI in a second view according to an embodiment of the present application;

[0020] Figure 3 is an exploded view of the traffic signal lamp auxiliary device for the blind people based on low-power Bluetooth RSSI in a third view according to an embodiment of the present application;

[0021] Figure 4 is a working principle diagram of the signal lamp end of the traffic signal lamp auxiliary device for the blind people based on low-power Bluetooth RSSI according to an embodiment of the present application;

[0022] Figure 5 is a working principle diagram of the user end of the traffic signal lamp auxiliary device for the blind people based on low-power Bluetooth RSSI according to an embodiment of the present application.

[0023] In the figure: 1-shell; 2-mounting seat; 3-clamp; 4-cover plate; 5-clamping groove; 6-sealing ring; 7-clamping part; 8-jack; 9-limiting part; 10-opening; 11-mounting hole; 12-protrusion; 13-groove; 14-identification structure; 15-waterproof cable interface. DETAILED DESCRIPTION

[0024] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present application.

[0026] It should be noted that similar reference numerals and letters in the following drawings represent similar items, and therefore, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.

[0027] In the description of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the application is usually placed, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, if the terms "first", "second" and the like appear in the description of the present application, they are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0028] In addition, if the terms "horizontal", "vertical" and the like appear in the description of the present application, they do not mean that the component must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0029] In the description of the present application, it should also be noted that unless otherwise explicitly specified and limited, if the terms "arrangement", "installation", "connection", "connection" appear, they should be understood in a broad sense, for example, they can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or indirectly connected through an intermediate medium; can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0030] Embodiment 1:

[0031] The utility model provides a kind of blind traffic signal lamp auxiliary device based on low-power bluetooth RSSI.

[0032] In an embodiment of the utility model, a kind of blind traffic signal lamp auxiliary device based on low-power bluetooth RSSI includes user end and signal lamp end being set on traffic signal lamp, signal lamp end includes shell 1, mounting seat 2, clamp 3 and with the detachable connection of shell 1 cover plate 4, clamp 3 is used to be detachably connected with traffic signal lamp, mounting seat 2 is set on the side of shell 1 and is opened with the clamping groove 5 for clamp 3 to extend, communication module for sending signal to user end is provided in shell 1, sealing ring 6 is provided between shell 1 and cover plate 4.

[0033] Specifically, as shown in Figure 4 In the utility model a kind of blind traffic signal lamp auxiliary device based on low-power bluetooth RSSI, signal lamp end is set on traffic signal lamp and directly connected with the dry contact point signal (using signal lamp state interface circuit) of traffic control machine, by which beacon data and signal lamp state can be ensured zero-delay synchronization, and real-time state signal of traffic signal lamp can be output by BLE bluetooth beacon SOC module and antenna 15.

[0034] When blind or visually impaired person needs to pass through intersection (common crossroad, deployment rule is that one signal lamp end is set on each traffic light, i.e. total 8 signal lamp ends, 2 corresponding to one pedestrian crossing), user end is held by blind or visually impaired person, as shown in Figure 5 User end scans and filters out the signal lamp beacon of specific device identifier by multi-channel BLE bluetooth beacon SOC module.If user end receives the RSSI of ≥2 beacons simultaneously, then the area of pedestrian crossing where user is located can be determined by triangulation, if user end receives the RSSI of only one beacon, then the distance of blind or visually impaired person to intersection is judged by intensity threshold (such as RSSI>-70dBm corresponds to distance <5 meters), simultaneously, user end can preferentially prompt the real-time state of front signal lamp by RSSI variation trend, so that accurate positioning of blind or visually impaired person can be realized, compared with the way of GPS positioning of existing blind traffic signal lamp auxiliary device, the positioning error of blind or visually impaired person at intersection is greatly reduced by the way of multi-beacon cooperative positioning and path prediction of the utility model, and position accuracy and use reliability are improved.

[0035] Further, the user terminal triggers the prompt according to the real-time distance and light state information of the blind or visually impaired person and the signal light, and the prompt mode can be realized by a voice synthesis chip and a hierarchical vibration motor, that is, when the blind or visually impaired person is far away from the signal light (within 10 meters), the user terminal periodically broadcasts "approaching the pedestrian crossing" by voice; when the blind or visually impaired person is close to the signal light (within 5 meters), if the light state information is red, the user terminal repeatedly broadcasts "red light, please wait" every second; if the light state information is green, the user terminal dynamically broadcasts "green light, remaining X seconds to pass"; at the same time, the hierarchical vibration motor synchronously generates vibrations of different frequencies to prompt the blind or visually impaired person. In addition, the utility model can embed a time stamp and a CRC check code in the BLE broadcast data packet to prevent signal forgery or data conflict.

[0036] As can be understood, Figures 1 to 3 As shown in the signal light end of the blind traffic signal lamp auxiliary device based on low-power Bluetooth RSSI of the utility model, the detachable connection between the clamp 3 and the traffic signal lamp can be achieved by bolt connection, so that the clamp 3 can be stably installed on the traffic signal lamp, and the clamp 3 is convenient to disassemble and assemble. Further, since the mounting seat 2 is arranged on one side of the shell 1 and is provided with a clamping groove 5, when the clamp 3 is installed, the staff can clamp the mounting seat 2 to the clamp 3, that is, the clamping groove 5 is clamped and matched with the clamp 3, so that the mounting seat 2 and the clamp 3 can be quickly connected, and the shell 1 on the mounting seat 2 can be stably installed on the traffic signal lamp, and the shell 1 is convenient to disassemble and assemble, so that the utility model is convenient to maintain and use reliably. In addition, the detachable connection between the shell 1 and the cover plate 4 can be achieved by thread connection, so that the cover plate 4 is convenient to disassemble and assemble, and the communication module in the shell 1 is convenient to maintain. At the same time, by arranging the sealing ring 6 between the shell 1 and the cover plate 4, the waterproof effect of the utility model can be improved, the communication module and other elements in the shell 1 are effectively prevented from being damaged due to water in the shell 1 during use, and the service life is prolonged.

[0037] It is worth noting that the communication module includes a BLE Bluetooth beacon SOC module and a signal light state interface circuit, and the specific installation mode is not described here. Since the blind or visually impaired person usually holds the user terminal when using the user terminal, the specific structure of the user terminal is not described here, and the specific structure of the user terminal is not shown in the drawings, that is, the user terminal is a simple shell structure and is provided with corresponding communication modules and the like in the shell.

[0038] In an embodiment, the mounting seat 2 and the shell 1 are detachably connected, the opposite sides of the mounting seat 2 extend away from the shell 1 and are bent to form clamping portions 7, the two clamping portions 7 are arranged outward along the circumference of the clamp 3, and the clamping portions 7 are provided with clamping grooves 5. Figures 1 to 3As shown, the detachable connection between the mounting base 2 and the shell 1 can be achieved by screwing, thereby facilitating the disassembly and assembly of the mounting base 2 and the shell 1, and facilitating maintenance. Further, since the clamping portion 7 extends away from the shell 1 and is bent, the clamping portion 7 can be tightly fitted with the clamping hoop 3 and the outer wall of the traffic signal lamp. As can be understood, when the shell needs to be mounted on the traffic signal lamp, since the clamping portion 7 is formed on the mounting base 2 and the clamping groove 5 is formed on the clamping portion 7, the worker can directly insert the clamping portion 7 between the clamping hoop 3 and the traffic signal lamp, and the clamping hoop 3 and the clamping groove 5 are clamped and matched to achieve stable mounting of the shell 1. The structure design is simple and reasonable, and the operation is simple, which improves the disassembly and assembly efficiency.

[0039] In an embodiment, a plurality of insertion holes 8 are uniformly and intermittently formed on the outer wall of the clamping hoop 3 in the circumferential direction, and limiting portions 9 for inserting into the insertion holes 8 are formed on the two clamping portions 7. Specifically, as shown in Figure 1 and Figure 3 When the clamping hoop 3 and the clamping groove 5 are clamped and matched, the worker can bend the limiting portion 9 and insert it into the corresponding insertion hole 8, thereby greatly improving the connection stability of the mounting base 2 and the clamping hoop 3, and significantly improving the mounting stability of the utility model on the traffic signal lamp.

[0040] In an embodiment, an opening 10 for accommodating a communication module is formed on the side of the shell 1 away from the mounting base 2, a plurality of mounting holes 11 are formed in a rectangular array at the opening 10, and a fastener is arranged on the cover plate 4 at a position corresponding to each mounting hole 11. As can be understood, as shown in Figures 1 to 3 The fastener can be a screw in the prior art, that is, the fastener is threadedly connected with the mounting hole 11, thereby achieving multi-point mounting of the cover plate 4 and ensuring the connection stability between the cover plate 4 and the shell 1.

[0041] In an embodiment, specifically, as shown in Figures 1 to 3 A protrusion 12 is formed on the shell 1 at the opening 10 in the circumferential direction, a sealing ring 6 is sleeved on the outer wall of the protrusion 12, and a recess 13 is formed on the cover plate 4 at a position corresponding to the protrusion 12. The insertion and fitting of the protrusion 12 and the recess 13 can ensure the connection tightness of the cover plate 4 and the shell 1, and the sealing ring 6 can be a waterproof rubber pad in the prior art. When the cover plate 4 is connected with the shell 1, the sealing ring 6 is elastically deformed, thereby sealing the gap between the cover plate 4 and the shell 1, and ensuring the waterproof effect of the shell 1, which is reliable in use.

[0042] In an embodiment, an identification structure 14 is formed on the side of the cover plate 4 away from the shell 1. Specifically, as shown in Figure 1 and Figure 2As shown, the specific parameters, specifications, working ranges, etc. of the signal lamp end are intuitively known by the staff through the identification structure 14, and the use is convenient.

[0043] In an embodiment, a waterproof cable interface 15 is arranged on the shell 1. Specifically, as shown in Figure 1 and Figure 3 shown, the waterproof cable interface 15 can ensure the waterproof sealing and electrical safety of the connection between the communication module in the shell 1 and the external cable.

[0044] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A low-power Bluetooth RSSI-based blind traffic signal lamp assistance device, characterized by, The utility model provides a signal lamp terminal and user terminal, the signal lamp terminal includes the installation seat (2), the clamp (3), the shell (1) and the cover plate (4) of detachable connection with shell (1), the clamp (3) is used for detachable connection with traffic signal lamp, the installation seat (2) is arranged in one side of shell (1) and is opened with the clamping groove (5) that the clamp (3) extends into, the communication module for sending signal to user terminal is arranged in shell (1), the sealing ring (6) is arranged between shell (1) and cover plate (4).

2. The low-power Bluetooth RSSI-based traffic signal lamp assistance device for the blind according to claim 1, characterized by, The installation seat (2) is detachable connection with the shell (1), the opposite sides of installation seat (2) extend and bend to form the clamping portion (7) in the direction away from the shell (1), two clamping portions (7) are arranged in the circumferential direction of the clamp (3) and are arranged outward, and the clamping portion (7) is provided with the clamping groove (5).

3. The low-power Bluetooth RSSI-based traffic signal lamp assistance device for the blind according to claim 2, characterized by, The outer wall of the clamp (3) is uniformly and spacedly provided with a plurality of insertion holes (8) in the circumferential direction, and the limiting portions (9) are formed on the two clamping portions (7) for extending into the insertion holes (8).

4. The low-power Bluetooth RSSI-based traffic signal lamp assistance device for the blind according to claim 1, characterized by, The side of the shell (1) away from the installation seat (2) is formed with an opening (10) for accommodating the communication module, a plurality of mounting holes (11) are arranged in a rectangular array at the opening (10), and a fastener is arranged on the cover plate (4) corresponding to the positions of the mounting holes (11).

5. The low-power Bluetooth RSSI-based traffic signal lamp assistance device for the blind according to claim 4, characterized by, The opening (10) is formed with a protrusion (12) in the circumferential direction of the shell (1), the outer wall of the protrusion (12) is sleeved with the sealing ring (6), and a recess (13) is arranged on the cover plate (4) corresponding to the position of the protrusion (12).

6. The low-power Bluetooth RSSI-based traffic signal lamp assistance device for the blind according to claim 5, characterized by, The side of the cover plate (4) away from the shell (1) is formed with an identification structure (14).

7. The low-power Bluetooth RSSI-based traffic signal lamp assistance device for the blind according to any one of claims 1-6, characterized in that, The shell (1) is provided with a waterproof cable interface (15).

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