CN216291512U

CN216291512U - Railway tunnel emergency lighting control device of IP66 protection level

Info

Publication number: CN216291512U
Application number: CN202220318904.9U
Authority: CN
Inventors: 崔国顺; 陈河南
Original assignee: Beijing Broadwit Technology Co ltd
Current assignee: Beijing Broadwit Technology Co ltd
Priority date: 2022-02-17
Filing date: 2022-02-17
Publication date: 2022-04-12
Anticipated expiration: 2032-02-17

Abstract

The utility model discloses an IP66 protection grade railway tunnel emergency lighting control device which comprises a plurality of ultrasonic sensors, a centralized control module, a plurality of LED control circuits and a lamp group, wherein the ultrasonic sensors are uniformly arranged on one side of a tunnel at intervals, each ultrasonic sensor is in communication connection with the centralized control module, the centralized control module is electrically connected with the LED control circuits, each LED control circuit is electrically connected with the corresponding lamp group, and the lamp group comprises a plurality of LED lamps which are uniformly arranged on two sides of the corresponding ultrasonic sensor at intervals. On one hand, the utility model solves the problems of difficult installation and debugging and alignment of the existing illumination control device, and avoids misjudgment caused by misalignment and energy waste caused by normal lighting of the LED lamp; on the other hand, the box body structure has the IP66 protection grade, so that the dustproof and waterproof problems of components and circuits are effectively solved, the maintenance and repair period is shortened, and the service life of equipment is prolonged.

Description

Railway tunnel emergency lighting control device of IP66 protection level

Technical Field

The utility model relates to the technical field of railway tunnel emergency lighting equipment, in particular to an IP66 protection grade railway tunnel emergency lighting control device.

Background

Emergency lighting of railway tunnels is an important component of railway safety operations. The train running speed has strict safety early warning standards, and if the train runs at a speed lower than the specified speed or even stops after entering a tunnel, the lighting operation needs to be carried out at the first time, so that passengers are prevented from panic, and the visual comfort of the passengers is improved.

At present, the emergency lighting of the railway tunnel is generally controlled by a retro-reflection type or a correlation type technology, for example, an infrared sensor or a laser sensor, so as to realize the automatic lighting of the tunnel light under different conditions. As shown in fig. 1, the retro-reflective lighting control system is provided with a transmitter 1 capable of emitting infrared rays or laser beams on one side wall of a railway tunnel, and a corresponding reflector 2 on the other side wall, wherein the transmitter can receive the infrared rays or laser beams 3 reflected by the reflector when no train passes through the transmitter. As shown in fig. 2, the correlation type lighting control system is that a transmitter 1 capable of emitting infrared rays or laser beams is installed on one side wall of a railway tunnel, and a receiver 4 capable of receiving infrared rays or laser beams 3 emitted by the transmitter when no train passes through is installed on the other side. When a train passes through, the train can block the infrared ray or the laser beam, and the time for the train head to block the infrared ray or the laser beam is assumed to be T₁The time for blocking infrared rays or laser beams at the tail of the vehicle is T₂，∆T(=T₂-T₁) A reasonable range is provided, the range is related to the length and the speed of the train, and when the T is more than a certain value, the train is judged to be stopped in the tunnel; or when the speed (equal to the ratio of the length of the train to the Δ T) is far less than the normal passing speed, the train is judged to be stopped in the tunnel, and the tunnel lighting system is automatically lightened at the moment.

Whether retro-reflective or correlation, the emission end needs to be aligned exactly with the reflection end or the reception end, which leads to the following technical problems: (1) the installation and debugging are difficult; (2) in the running process, due to reasons of foundation settlement or vibration generated when a train passes through for a long time and the like, the transmitting end, the reflecting end and the receiving end cannot be strictly aligned, so that the train is judged to be stopped in the tunnel by mistake, and the illumination is normally on; (3) infrared ray or laser receive influences such as big fog, dense haze, lead to the receiving terminal can not receive infrared or laser signal to cause the misjudgement to cause the illumination to open the energy of wasting of always bright totally.

Meanwhile, the railway tunnel belongs to a field environment, dust is more, the tunnel wall needs to be cleaned regularly, and a control device with a high dustproof and waterproof grade needs to be urgently needed to protect a circuit and components.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a railway tunnel emergency lighting control device to solve the problems in the prior art.

The utility model provides a railway tunnel emergency lighting control device which comprises a plurality of ultrasonic sensors, a centralized control module, a plurality of LED control circuits and a plurality of LED lamp sets, wherein the ultrasonic sensors are arranged on the railway tunnel; the ultrasonic sensors are uniformly arranged on one side of the tunnel at intervals; each ultrasonic sensor is in communication connection with the centralized control module; the centralized control module is electrically connected with the LED control circuits; each LED control circuit is electrically connected with the corresponding LED lamp group; each LED lamp group comprises a plurality of LED lamps; the LED lamps are uniformly arranged on two sides of the corresponding ultrasonic sensor at intervals.

Further, still include the protective housing, the protective housing has chamber door and box, and ultrasonic sensor runs through and sets up in a trompil on the chamber door of protective housing, and the box has the sunshade of roof and L shape, the rear end of sunshade passes through elastic hinge with the roof of box and is connected, the front end of sunshade covers the gap between chamber door and the box roof.

Furthermore, two sides of the front end of the shielding plate are respectively hinged with a strip-shaped plate for covering gaps between the box door and two sides of the box body.

Furthermore, the lower part of box is provided with magnetism and inhales the subassembly, magnetism is inhaled the subassembly and is included the magnetic path that sets up in the bar shaped plate lower part, is provided with the magnetic part and can hold the recess that the magnetic path got into in the lower part of the lateral wall of box.

Furthermore, a magnetic part cavity and a magnetic part are further arranged on the lower portion of the side wall of the box body, the magnetic part cavity is arranged close to the groove, and the magnetic part matched with the magnetic block for use is arranged in the magnetic part cavity.

Further, each ultrasonic sensor and the centralized control module are connected in a carrier communication mode.

Further, a light intensity sensor which is in communication connection with the centralized control module is arranged near each ultrasonic sensor.

Furthermore, the model of the ultrasonic sensor is HC-SR04, and the model of the light intensity sensor is ZZ-S-LM-A.

Furthermore, each LED control circuit is electrically connected with the corresponding LED lamp bank through a normally open contact of the relay, and a coil of the relay is controlled by the centralized control module.

Furthermore, a light outlet of each LED lamp is provided with a reflecting cover, and the longitudinal section of each reflecting cover is trumpet-shaped.

The utility model has the beneficial effects that:

according to the railway tunnel emergency lighting control device, whether a train runs at a speed lower than a preset speed or even stops in a tunnel or not is detected by adopting the ultrasonic sensor, the ultrasonic transmitting end and the ultrasonic receiving end are positioned on the same side, and the transmitting end scatters ultrasonic waves at a certain angle, so that the transmitting end and the receiving end are not required to be aligned, the installation and debugging time is greatly reduced, the problems of difficulty in installation and debugging and alignment are solved, and the problems of misjudgment and normal brightness of an LED lamp caused by misalignment are avoided; because the ultrasonic wave does not receive the influence of big fog, haze, consequently can not cause the erroneous judgement because of bad weather, avoided the LED lamp to often light the energy waste who causes. Meanwhile, the box structure provided by the utility model has the IP66 protection grade, so that the dustproof and waterproof problems of components and circuits are effectively solved, the cost and the period of maintenance are reduced, and the safety and the reliability of equipment are improved.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only one embodiment of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic diagram illustrating the operation principle of a retro-reflective lighting control system in the prior art.

Fig. 2 is a schematic diagram illustrating the operation principle of a correlation illumination control system in the prior art.

Fig. 3 is a block diagram of a tunnel emergency lighting control device according to an embodiment of the present invention.

Fig. 4 is a schematic position diagram of an LED lamp set according to an embodiment of the utility model.

Fig. 5 is a schematic diagram of the working principle of the ultrasonic sensor in the embodiment of the utility model.

Fig. 6 is a schematic view of the installation position of the ultrasonic sensor in the embodiment of the present invention.

Fig. 7 is a schematic structural view of a protective box according to a preferred embodiment of the present invention.

FIG. 8 is a side cross-sectional view of a protective case of a preferred embodiment of the present invention.

FIG. 9 is a front partial cross-sectional view of a protective case according to a preferred embodiment of the utility model.

Fig. 10 is a schematic view of a fixing structure of a cylinder according to a preferred embodiment of the present invention.

Wherein, 1, a transmitter; 2. a reflector; 3. infrared or laser beams; 4. a receiver; 5. an ultrasonic sensor; 6. ultrasonic waves; 7. a protective box; 711. a box door; 712. opening a hole; 713. a strip plate; 7131. a magnetic block; 7132. a rubber strip; 714. a tubular member; 715. a box body; 716. a magnetic member; 7161. a magnetic member cavity; 717. a boss; 718. a top plate; 7181. an L-shaped shutter; 7182. a single elastic hinge; 7183. an articulation member; 719. a fixing sheet; 720. and (4) a groove.

Detailed Description

The technical solutions in the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The technical solution of the present application will be described in detail below with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.

As shown in fig. 3, the emergency lighting control device for railway tunnels provided by the utility model comprises n ultrasonic sensors, a centralized control module, n LED control circuits and n LED lamp sets; the ultrasonic sensors are uniformly arranged on one side of the tunnel at intervals; each ultrasonic sensor is in communication connection with the centralized control module; the centralized control module is electrically connected with the n LED control circuits; each LED control circuit is electrically connected with the corresponding LED lamp group; each LED lamp group comprises m LED lamps; the m LED lamps are uniformly spaced at both sides of the corresponding ultrasonic sensor, as shown in fig. 4.

As shown in fig. 5, the working principle of the emergency lighting control device for railway tunnel of the present invention is as follows: ultrasonic sensor 5 includes ultrasonic emission end and ultrasonic receiving terminal, and ultrasonic emission end takes place the reflection with certain angle scattering ultrasonic wave 6 when the ultrasonic wave is blockked by the train, and the ultrasonic wave that reflects back is received by the ultrasonic receiving terminal, and the centralized control module judges that the train passes through this ultrasonic sensor from this, and the time difference through transmission, receipt can obtain the train and ultrasonic sensor's distance, and then judges whether the train is in the ultrasonic wave within range. The scattering angle of the ultrasonic wave is preferably 30 °.

As shown in FIG. 6, let the head arrive P_iThe time point of the ith ultrasonic sensor set at the position point is T_iWhen the locomotive arrives at P_i+1The time point of the (i + 1) th ultrasonic sensor set at the position point is T_i+1The centralized control module can calculate the running speed of the train, namely the running speed is equal to P_iPosition point and P_i+1Distance and time difference (T) between location points_i+1-T_i) The ratio of (a) to (b). When the running speed is lower than the preset speed, the train is judged to be in fault and even stopped in the tunnel, and the centralized control module drives the LED control circuit corresponding to the ith ultrasonic sensor, so that the LED lamps in the corresponding LED lamp set are controlled to be turned on in an emergency. The utility model judges timely and reduces the delay time of the LED lamp lighting.

In a preferred embodiment of the utility model, the preset speed per hour of the triggering illumination is 50km/h, a protective box is arranged at intervals of 0.2km from the entrance to the exit of the tunnel, an LED lamp is arranged at intervals of 20m in the LED lamp group, and the train passes through P_iPosition point and P_i+1The velocity per hour obtained after the position point was V = 0.2/(T)_i+1-T_i). When V is<When the speed is 50km/h, the lamp set is automatically lightened, and the emergency lighting requirement in the tunnel can be met. The LED lamp set is lighted in three ways: firstly, lighting the ith LED lamp group; secondly, not only the ith LED lamp group is controlled to be turned on, but also the (i + 1) th LED lamp group and the (i-1) th LED lamp group are turned on, namely two adjacent LED lamp groups are controlled to be turned on; and thirdly, lighting all the LED lamp groups in the whole tunnel. The LED lamp group lighting area can be set according to actual requirements.

As shown in fig. 7, the preferred protective box 7 of the present invention is fixed on the inner wall of the railway tunnel, and has a box door 711 and a box body 715, and the middle of the box door 711 is provided with an opening 712. The transmitting end and the receiving end of the ultrasonic sensor are both packaged in a cylindrical part 714, and the transmitting and receiving of ultrasonic waves are both towards the outside of the box body. The tube-shape spare runs through to set firmly in the trompil, is provided with the sealing washer between tube-shape spare and the trompil, can effectively prevent to spray liquid and dust and get into through the trompil.

The box body is provided with a cavity, and components such as the rear part of the ultrasonic sensor, a signal wire, a control circuit, a relay and the like are arranged in the cavity. Open-air environment dust is more, and the tunnel inner wall needs regularly clean, prevents during the cleanness that spray liquid from getting into the box cavity, therefore the protective housing needs to have certain dustproof waterproof ability. Preferably, protective enclosure 7 may implement an IP66 protection rating. Specifically, referring collectively to fig. 7-9, the box has two side walls, a bottom panel, a top panel 718 and an L-shaped shield 7181, the rear end of the shield being connected to the top panel of the box by a single resilient hinge 7182 about which the shield flips upward under the action of the single resilient hinge and remains in that position in the open box condition. In a working state, the front end of the shielding plate covers the joint of the upper part of the box door and the top plate, and spraying liquid is prevented from entering the box body through the joint gap. The front end both sides of L-shaped sunshade are connected with bar 713 through articulated elements 7183 respectively, and when the bar was vertical, the seam of junction between cover chamber door and the box both sides portion was covered to the bar. Preferably, a rubber strip 7132 is provided on the inside of the strip-shaped plate, which can be fitted with a seam gap.

As shown in fig. 9, the lower part of the protection box is provided with a magnetic attraction component. The magnetic attraction component comprises magnetic blocks 7131 protruding from the lower portion of the strip-shaped plate to two side walls of the box body, and magnetic pieces 716 and magnetic piece cavities 7161 matched with the magnetic blocks and a groove 720 capable of accommodating the magnetic blocks are arranged on the lower portions of the two side walls of the box body. The magnetic part cavity is close to the groove, and the magnetic part is arranged in the magnetic part cavity.

During the use, close chamber door 711, the bar 713 of both sides is stimulateeed downwards, the drive overcomes the torsion downstream of single elasticity hinge with the L shape sunshade of bar pin joint and arrives and the roof laminating, later, the lower part of bar inwards application of force, make its lateral part pivot to the magnetic path entering recess towards the box, the bar keeps vertical state under the adsorption of magnetic part this moment, the front end of L shape sunshade is sealed to realizing between chamber door and the top, the bar shelters from the gap between chamber door and the box both sides board, reach normal use's encapsulated situation, realize IP66 protection level.

When the refrigerator door is overhauled or replaced, the lower parts of the strip-shaped rods are pulled to two sides by external force, the magnetic blocks overcome the attraction of the magnetic pieces to leave the grooves, at the moment, the curtain plates drive the strip-shaped pieces to automatically turn upwards under the action of the single elastic hinges, the blockage of the curtain plates on the upper part of the refrigerator door is removed, and the refrigerator door can be opened to operate.

Through the above-mentioned linkage structure of this preferred embodiment, only need exert the power of a pull-down and interior pressure to the strip spare, can realize the high-grade protection to whole box, perhaps, only need exert the power of an outer pulling to the strip spare, can realize removing of restraint, be convenient for quick maintenance and maintenance.

As an alternative embodiment, the cartridge may be fixed to the door by a fixing mechanism. As shown in fig. 10, the fixing mechanism includes fixing pieces 719 symmetrically disposed on the cylindrical member 714, bosses 717 disposed on both sides of the opening are provided on the door, and a screw assembly is disposed between the bosses and the fixing pieces.

In a specific embodiment of the utility model, the model of the ultrasonic sensor is HC-SR04, and the HC-SR04 module is an existing product and has stable performance.

In a specific embodiment of the utility model, each ultrasonic sensor is connected with the centralized control module by carrier communication, and the carrier communication can realize the technology that a signal line and a power supply line share one bus, thereby saving the construction and cable cost and bringing great convenience to later maintenance.

In an embodiment of the present invention, a light intensity sensor communicatively connected to the centralized control module may be further provided near each ultrasonic sensor. When the ith LED lamp bank is automatically controlled to be started, the corresponding illumination sensor detects the illumination intensity in the tunnel, and when the illumination intensity is smaller than a first set illumination intensity, the centralized control module increases the output current of the corresponding LED control circuit, so that the brightness of the ith LED lamp bank is increased; when the illumination intensity is greater than the second set illumination intensity, the centralized control module reduces the output current of the corresponding LED control circuit, and reduces the brightness of the ith LED lamp bank, wherein the second set illumination intensity is greater than the first set illumination intensity. The light intensity sensor is used for detecting the light intensity in the tunnel, the brightness of the LED lamp bank is adjusted, the LED lamp is prevented from being too dark or too bright, the illumination requirement in the tunnel is guaranteed, and electric energy can be saved. Specifically, the model of the light intensity sensor is ZZ-S-LM-A.

In an alternative embodiment of the present invention, each LED control circuit is electrically connected to the corresponding LED lamp set through a normally open contact of the relay, and a coil of the relay is controlled by the centralized control module, that is, one end of the coil of the relay is connected to an output end of the centralized control module, and the other end of the coil of the relay is grounded. When no train runs at a speed lower than the preset speed in the tunnel, the output end of the centralized control module outputs a high level, the coil of the relay is electrified, the normally open contact of the coil is disconnected, and the LED lamp set is not lighted; when a train runs at a speed lower than a preset speed or even stops in the tunnel, the output end of the centralized control module outputs zero level, the coil of the relay is powered off, the normally open contact of the coil is closed, and the LED lamp set is on. Specifically, the relay adopts a solid-state relay with the model number of SSR-25 DD.

In one embodiment of the utility model, a reflector is arranged at the light outlet of each LED lamp, and the longitudinal section of the reflector is trumpet-shaped. The reflector has good light-gathering effect, increases the irradiation distance and has good illumination effect. Specifically, the reflector is made of ABS material.

In an alternative embodiment of the present invention, the centralized control module may include a plurality of controllers, and the controllers communicate with each other, and the specific number of the controllers is determined according to the number of input terminals required by the ultrasonic sensor, and/or the light intensity sensor, and the number of output terminals required by the LED control circuit and the relay. Each controller may be a single chip microcomputer of type STC89C 52. Preferably, a controller is arranged in one tunnel, the controllers on the whole railway line are in communication connection with a main server, and the main server can be used for collecting and receiving train information sent by the controllers.

While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the utility model. It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the utility model. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. An IP66 protection grade railway tunnel emergency lighting control device which characterized in that: the system comprises a plurality of ultrasonic sensors, a centralized control module, a plurality of LED control circuits and a plurality of lamp sets; the ultrasonic sensors are uniformly arranged on one side of the tunnel at intervals; each ultrasonic sensor is in communication connection with the centralized control module; the centralized control module is electrically connected with the LED control circuits; each LED control circuit is electrically connected with the corresponding lamp group; each lamp group comprises a plurality of LED lamps; the LED lamps are uniformly arranged on two sides of the corresponding ultrasonic sensor at intervals.

2. The railway tunnel emergency lighting control device of claim 1, wherein: the ultrasonic protection box is provided with a box door and a box body, the ultrasonic sensor penetrates through an opening formed in the box door, the box body is provided with a top plate and an L-shaped shielding plate, the rear end of the shielding plate is connected with the top plate of the box body through an elastic hinge, and the front end of the shielding plate covers the joint between the box door and the top plate; both sides of the shielding plate are hinged with strip-shaped plates covering joints of the box door and the box body; the magnetic attraction component is arranged at the lower part of the box body and comprises a magnetic block arranged at the lower part of the strip-shaped plate, and a magnetic part and a groove capable of accommodating the magnetic block are arranged at the lower part of the side wall of the box body; the lower part of the side wall of the box body is also provided with a magnetic part cavity, the magnetic part cavity is close to the groove, and the magnetic part is arranged in the magnetic part cavity.

3. The railway tunnel emergency lighting control device of claim 1, wherein: each ultrasonic sensor is connected with the centralized control module in a carrier communication mode.

4. The railway tunnel emergency lighting control device of claim 1, wherein: and a light intensity sensor which is in communication connection with the centralized control module is arranged near each ultrasonic sensor.

5. The railway tunnel emergency lighting control device of claim 4, wherein: the model of the ultrasonic sensor is HC-SR04, and the model of the light intensity sensor is ZZ-S-LM-A.

6. The railway tunnel emergency lighting control device of any one of claims 1 to 5, wherein: each LED control circuit is electrically connected with the corresponding lamp bank through a normally open contact of the relay, and a coil of the relay is controlled by the centralized control module.

7. The railway tunnel emergency lighting control device of any one of claims 1 to 5, wherein: and a light outlet of each LED lamp is provided with a reflector, and the longitudinal section of each reflector is trumpet-shaped.