CN210558830U - Escalator/moving walk included angle personnel mistaken-entry monitoring, recognizing and early-warning system - Google Patents

Abstract

The utility model relates to the technical field of elevators, in particular to an escalator/moving walk included angle personnel mistakenly entering monitoring, recognizing and early warning system, which comprises a camera device, an audible and visual alarm and a communication bus, wherein the camera device, the audible and visual alarm and the communication bus are arranged on the escalator/moving walk and adjacent staggered escalator/moving walk; the camera device comprises a camera and a controller, and the camera is arranged close to the vertex of the triangular area along the running direction of the escalator/moving sidewalk and used for shooting an image of the monitored triangular area; the controller comprises an FPGA module, a memory, a power supply module, a first connecting port and a second connecting port, a Nios II processor is embedded in the FPGA module, the memory, the first connecting port and the second connecting port are connected to the FPGA module, the first connecting port is further connected to the camera, and the second connecting port is connected to the audible and visual alarm through a communication bus. The utility model discloses avoid adjacent automatic escalator/moving walk room or its and building room contained angle striking, crowded press from both sides or cut the human accident, the system is sensitive reliable.

Description

Escalator/moving walk included angle personnel mistaken-entry monitoring, recognizing and early-warning system

Technical Field

The utility model relates to an elevator technical field especially relates to an automatic staircase moving walk contained angle personnel mistake income monitoring identification early warning system.

Background

The large public places often need to transport people to different floors through transportation equipment such as escalators, the arrangement of the escalators often forms a triangular dangerous area with adjacent escalators or buildings, when passengers use the escalators, if the passengers carelessly stretch limbs such as heads and hands out of handrail belts of the escalators, the area can cause the risks of collision, pinching, shearing and the like to the passengers. Therefore, it is necessary to provide safety protection devices in this area;

currently, the national standard GB 16899-2011 specifies in "interface of accessory a with the building": if the building obstacles can cause injury to people, corresponding preventive measures should be taken. In particular, at the intersections with the floor and between the crossed escalators or moving walkways, a vertical guard bar without sharp edges should be provided above the handrail belt, the height of which should not be less than 0.3m and extend at least up to 25mm below the handrail belt, for example using a blank triangle. This requirement need not be complied with if the distance between the outer edge of the handrail belt and any obstacle is 400mm or more. Similar provisions are made for the guard barrier by the escalator inspection rule TSGT 7005-2012: if the obstacles of the building can cause injury to people, corresponding precautions should be taken. Particularly, a vertical fixed closed guard board which has the height not less than 0.30m and no sharp edge is arranged between the escalator or the moving sidewalk at the intersection with the floor slab and among the escalator or the moving sidewalk at each intersection, is positioned above the handrail belt and extends to at least 25mm below the outer edge of the handrail belt (except the distance between the outer edge of the handrail belt and any obstacle is more than or equal to 400 mm);

therefore, the safety protection measures of the included angle formed by the escalator and the building designed and installed according to the regulations in China are basically vertical fixed closed protective baffles with the height not less than 0.30m, the protective baffles can prevent human bodies or objects from being clamped into the included angle between the escalator and the building, and have a certain protection effect, but the protection mode is based on the principle that the human bodies collide the baffles to form obstacles and buffer, the harm of the baffles to passengers is not well solved, for example, the collided people cannot respond to timely contract limbs or are frightened by the collision of the baffles, secondary accidents such as falling and rolling are more likely to happen, and even the fixed protective baffles made of flexible or elastic materials are adopted, the problems can not be well solved; the movable warning baffle plate attached with characters such as 'carefully bump' is additionally arranged at the included angle part of the escalator, the movable warning baffle plate can only prompt people who observe the position of the included angle, most of people who have included angle clamping accidents can stretch head and neck limbs into the dangerous range of the included angle due to the fact that the existence of the included angle is not noticed yet, and the warning characters of a dangerous area cannot be observed, so that the warning measure has little effect, people who really are in the dangerous area and the place can hardly be prompted, and a good protection effect can be achieved;

therefore, technical means are urgently needed to develop an intelligent identification early warning system for effectively reminding passengers to prevent limbs or the skull from entering the escalator/moving walk or the escalator/moving walk and building included angles, and intrinsic safety is really achieved.

Disclosure of Invention

The utility model aims at providing an automatic staircase moving walk contained angle personnel mistake income monitoring identification early warning system, avoid between automatic staircase moving walk contained angle and the building formation contained angle or the adjacent automatic staircase moving walk contained angle striking, crowded clamp or the shearing accident, the system is sensitive reliable, reduces the potential safety hazard.

For solving the above technical problem, the technical scheme of the utility model is that: a monitoring, recognizing and early warning system for the error entrance of people at an included angle of an escalator/moving walk comprises a camera device, an audible and visual alarm and a communication bus, wherein the camera device is arranged in a triangular area formed by the escalator/moving walk and an adjacent staggered escalator/moving walk or the escalator/moving walk and a building; the camera device comprises a camera and a controller, wherein the input end of the controller is electrically connected with the camera, and the output end of the controller is electrically connected with the audible and visual alarm; the camera is arranged close to the vertex of the triangular area along the running direction of the escalator/moving sidewalk and is used for shooting an image of the monitored triangular area;

the controller comprises an FPGA module, a memory, a power supply module, a first connecting port and a second connecting port, a Nios II processor is embedded in the FPGA module, the memory, the first connecting port and the second connecting port are all connected to the FPGA module, the first connecting port is also connected to the camera, and the second connecting port is connected to the audible and visual alarm through a communication bus; the power module is used for providing working voltage for the FPGA module, the memory and the camera.

According to the scheme, the camera is fixedly arranged on the edge of the bottom plate of the adjacent staggered escalator/moving sidewalk or building; one side of the escalator/moving walk is provided with a support positioned in the triangular area, and the audible and visual alarm is fixedly arranged on the support at one side of the escalator/moving walk.

According to the scheme, the shooting distance of the camera is at least 3 meters; carry out reputation and remind when shooting personnel's limbs or head entering contained angle region at the camera, it is also time-consuming that personnel receive the suggestion and withdraw the human body, and what this in-process elevator was running state always, and the security that the undersize shoots the distance and can make this system is lower.

According to the scheme, the FPGA module adopts a chip of EP2C70F672C8 model; the chip adopts a high-speed CHMOS process, has low power consumption, can be compatible with CMOS and TTL levels, is applied to various general logics, integrates a plurality of high-speed transceivers, and has high data transmission rate.

According to the scheme, the memory is an SDRAM memory, and the model is HY57V641620H series; the SDRAM memory is synchronized with the Nios II processor as a memory for data while the processor is running.

According to the scheme, the first connecting interface is an FMC interface; the camera is connected to the FPGA module through the FMC interface, so that the delay of system signals is greatly reduced, the data acquisition speed is high, and the working real-time performance of the system is further enhanced.

According to the scheme, the communication bus is an RS485 bus; the RS485 bus has strong common-mode interference resistance and good noise interference resistance; preferably, the second connection port is an RS485 interface.

According to the scheme, the controller further comprises a display screen interface connected to the FPGA module, preferably, the display screen interface is an HDMI interface and is used for being externally connected with a display screen, and an operator can conveniently debug the shooting area of the camera.

The utility model discloses following beneficial effect has:

the camera device of the utility model shoots the process that passengers enter the escalator and move to the position near the included angle along with the escalator, recognizes the process that the body of a human body extends into the outside of the armrest of the escalator and is about to enter the included angle in the process, when the body or the head of a person is about to enter the included angle area, the camera head sends an alarm signal to the audible and visual alarm after processing the shot image by the controller, the audible and visual alarm gives out audible and visual alarm and voice prompt to remind the person about to enter the included angle area to recover the human body, thereby improving the self-safety protection consciousness of the person, fundamentally avoiding the included angle between the escalator/moving sidewalk and the building or the included angle between the adjacent escalators/moving sidewalks from impacting, extruding or shearing accidents, improving the intrinsic safety level of the escalators/moving sidewalks, ensuring the life safety of people, and improving the intrinsic safety of the, the safety of the escalator can be greatly improved, the lives of people are protected, and the included angle shearing accident of the escalator is prevented; the utility model is suitable for any situation that the escalators are arranged alternately or the escalators and the floor slabs are arranged alternately, has wide application range, is not influenced by the environment and the climate, has simple and convenient structure and has good popularization; the safety management and emergency rescue management cost is saved, and the safety rescue management system has strong practicability and great social value;

the utility model is used for the monitoring recognition and early warning of the mistaken entry of personnel, has high requirements on the processing speed and accuracy of monitoring signals, and the FPGA module adopted by the utility model has abundant triggers and I/O interfaces and adopts a high-speed CHMOS process, thus having low power consumption; the Nios II processor has strong control function, high flexibility and strong configurability; the utility model discloses a controller passes through the embedded Nios II treater of FPGA module, combines the advantage that Nios II treater control function is strong and configurability is strong when keeping the flexibility of FPGA module, makes the utility model discloses monitoring and signal processing process are quick more, sensitive reliable.

Drawings

Fig. 1 is a schematic view of the overall structure of an embodiment of the present invention;

FIG. 2 is a schematic top view of the structure of FIG. 1;

FIG. 3 is a block diagram of the overall structure of the embodiment of the present invention;

FIG. 4 is a circuit diagram of a power module according to the present embodiment;

fig. 5 is a schematic view of the overall structure of another embodiment of the present invention;

reference numerals:

1. a camera device; 101. a camera; 102. a controller; 1021. an FPGA module; 1022. a memory; 1023. a power supply module; 1024. a first connection port; 1025. a second connection port; 1026. a display screen interface; 2. an audible and visual alarm; 3. a communication bus.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 4, the present invention relates to an escalator/moving sidewalk included angle personnel mistake entry monitoring, recognizing and early warning system, which comprises a camera device 1, an audible and visual alarm 2 and a communication bus 3, wherein the camera device is installed in a triangular area formed by the escalator/moving sidewalk and an adjacent staggered escalator/moving sidewalk or the escalator/moving sidewalk and a building; the camera device 1 comprises a camera 101 and a controller 102, wherein the input end of the controller 102 is electrically connected to the camera 101, and the output end of the controller 102 is electrically connected to the audible and visual alarm 2; along the running direction of the escalator/moving sidewalk, the camera 101 is installed at a position close to the vertex of the triangular area and used for shooting an image of the monitored triangular area;

with reference to fig. 1 and 2, the camera 101 is fixedly mounted on the edge of the bottom plate of an adjacent interlaced escalator/moving walkway or building; one side of the escalator/moving walk is provided with a bracket positioned in a triangular area, and the audible and visual alarm 2 is fixedly arranged on the bracket at one side of the escalator/moving walk; in this embodiment, the shooting distance of the camera 101 is at least 3 meters.

In this embodiment, the camera 101 is a camera 101 manufactured by Aptina corporation and having a model of MT9V034, and the camera 101 of the model can shoot a high-speed moving object (the dynamic range reaches 90db +), and can shoot a human body image on a running escalator/moving sidewalk; the camera is suitable for different illumination, still can shoot clearly under low illumination, and can be suitable for indoor environments such as markets under low illumination or strong light; the camera adopts a CMOS image sensor, and images are shot and then transmitted to the controller 102; the operating voltage of the camera 101 is 3.3V.

Referring to fig. 3, the controller 102 includes an FPGA module 1021, a memory 1022, a power supply module 1023, a first connection port 1024 and a second connection port 1025, a Nios II processor is embedded in the FPGA module 1021, the memory 1022, the first connection port 1024 and the second connection port 1025 are all connected to the FPGA module 1021, the first connection port 1024 is further connected to the camera 101, and the second connection port 1025 is connected to the audible and visual alarm 2 through a communication bus 3; the power supply module 1023 is used for supplying operating voltage to the FPGA module 1021, the memory 1022 and the camera 101.

In the embodiment, the FPGA module 1021 is an EP2C70F672C8 model FPGA chip, the working voltage is 3.3V, the chip adopts a high-speed CHMOS process, the power consumption is low, the chip is compatible with CMOS and TTL levels, the chip is applied to various general logics, a plurality of high-speed transceivers are integrated, and the data transmission rate is high; the Nios II processor is embedded in the FPGA chip and is a configurable soft core processor, the Nios II processor replaces the original ARM7, the use and the configuration are more flexible, and the high-speed data receiving, transmitting and exchanging can be realized by combining the protocol of the high-speed processing interface of the FPGA, so that the problem that the integrity of signals can be kept in the high-speed receiving and transmitting process is solved.

The memory 1022 adopts an SDRAM memory 1022, has a small volume, is in a model of HY57V641620H series, adopts 3.3V working voltage, and is synchronous with the Nios II processor to be used as a data memory 1022 when the processor runs.

The first connecting port 1024 is used for realizing communication between the camera 101 and the controller 102, the first connecting port 1024 is an FMC port connected to the FPGA module 1021, the FMC port is used as an ideal I/O module to be coupled to the front end of the FPGA module 1021, the camera 101 is connected to the FPGA module 1021 through the FMC port, delay of system signals is greatly reduced, data acquisition speed is high, and real-time performance of system work is further improved.

The second connection port 1025 is used for realizing communication between the controller 102 and the audible and visual alarm 2, the second connection port 1025 is an RS485 interface, and an alarm signal generated by the controller 102 is sent to the audible and visual alarm 2 through the communication bus 3; in the embodiment, the communication bus 3 adopts an RS485 bus, the RS485 bus adopts an RS485 communication protocol, and the RS485 communication protocol has a multi-point and bidirectional communication function; the device has the driving capability and the collision protection characteristic of a transmitter; RS485 adopts two-wire system, and the interface adopts the combination of balanced driver and difference receiver, and anti common mode is done the ability reinforce, and noise interference nature is good, uses the digital communication network of this standard can effectively transmit the signal under remote condition and the environment that electronic noise is big, and camera device 1 passes through RS485 bus and is connected with audible-visual annunciator 2, applicable in open air or complicated market environment.

In order to conveniently debug the shooting area of the camera 101, the controller 102 further comprises a display screen interface 1026 connected to the FPGA module 1021, and the display screen can be externally connected when the shooting area of the camera 101 is debugged, so that an operator can conveniently determine the shooting area of the camera 101 through the display screen; in this embodiment, the display screen interface 1026 is an HDMI interface.

With reference to fig. 3 and 4, the power module 1023 includes a switching power supply, a first voltage conversion unit and a second voltage conversion unit connected in sequence; the escalator power supply is 220V alternating current, the switching power supply is externally connected with 220V alternating current, the 220V alternating current is converted into 24V direct current, and in the embodiment, the switching power supply adopts an NES-35-24 switching power supply; the first voltage conversion unit is used for converting the 24V direct current output by the switching power supply into a 5V voltage, and in this embodiment, the first voltage conversion unit includes a voltage converter U1 with model number ZY2405UHBD-5W, an input end of the voltage converter U1 is connected to an output end of the switching power supply, and an output end of the voltage converter U1 outputs a +5V voltage; the second voltage conversion unit is used for converting the +5V voltage output by the first voltage conversion unit into a +3.3V voltage and providing a working voltage for the FPGA module 1021, the memory 1022 and the camera 101, in this embodiment, the second voltage conversion unit is a voltage converter U2 with a model of AMS1117-3.3, an input end of the voltage converter U2 is connected to an output end of the voltage converter U1, and an output end of the voltage converter U2 outputs the +3.3V voltage.

The type of the audible and visual alarm 2 is YS-01X, a 120DB large decibel alarm horn is adopted, a high-brightness LED emits light in a stroboscopic mode, fixed sound information can be customized and stored, as many as 8 alarm sounds can be selected by a user and can be controlled by an RS485 communication protocol, and a power supply end can be used only by being connected to an escalator power supply; the device has the weather-proof circuit process design, is waterproof, dustproof and reliable in quality, and can be suitable for outdoor escalators; the signal end is connected with the controller 102, the controller 102 sends an alarm signal to the audible and visual alarm 2, and the audible and visual alarm 2 triggers an alarm, so that the operation is simple and the service life is long.

In another embodiment, referring to fig. 5, the number of the audible and visual alarms 2 can be multiple, and the audible and visual alarms are uniformly distributed along the elevator running direction within the shooting range of the camera 101, and are fixedly installed on the bracket on one side of the escalator/moving sidewalk, so that when the shooting area is large, a person can be ensured to timely receive audible and visual warnings sent by the nearby audible and visual alarms 2.

The device of the utility model is simple and sensitive in response, the shooting range can be adjusted according to the real working condition data of the escalator, and the device is suitable for any situation that the escalator is arranged in a crossed manner or the escalator and the floor are arranged in a crossed manner, has low price and good popularization; when detecting that a person or a limb is about to enter an included angle between the escalator/moving sidewalk and an adjacent building or between the escalator/moving sidewalk, recognizing a picture and starting acousto-optic warning to draw the attention of passengers, so that the passengers can take back the limbs such as the head, the hands and the like, and unnecessary personal injuries and deaths are reduced; the escalator safety can be greatly improved, the lives of people are protected, the included angle shearing accident of the escalator is prevented, the safety management and emergency rescue management cost is saved, and the escalator safety protection device has strong practicability and great social value.

The foregoing is a more detailed description of the present invention that is presented in conjunction with specific embodiments, and it is not to be understood that the specific embodiments of the present invention are limited to these descriptions. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims (8)

1. The utility model provides an automatic staircase moving walk contained angle personnel mistake and go into monitoring discernment early warning system which characterized in that: the intelligent escalator/moving walk alarm system comprises a camera device (1), an audible and visual alarm (2) and a communication bus (3), wherein the camera device is arranged in a triangular area formed by the escalator/moving walk and an adjacent staggered escalator/moving walk or the escalator/moving walk and a building; the camera device (1) comprises a camera (101) and a controller (102), wherein the input end of the controller (102) is electrically connected to the camera (101), and the output end of the controller (102) is electrically connected to the audible and visual alarm (2); the camera (101) is arranged close to the vertex of the triangular area along the running direction of the escalator/moving pavement and is used for shooting an image of the monitored triangular area;

the controller (102) comprises an FPGA module (1021), a memory (1022), a power supply module (1023), a first connecting port (1024) and a second connecting port (1025), a NiosII processor is embedded in the FPGA module (1021), the memory (1022), the first connecting port (1024) and the second connecting port (1025) are connected to the FPGA module (1021), the first connecting port (1024) is further connected to the camera (101), and the second connecting port (1025) is connected to the audible and visual alarm (2) through a communication bus (3); the power supply module (1023) is used for providing working voltage for the FPGA module (1021), the memory (1022) and the camera (101).

2. The escalator/moving walk included angle personnel mistaken entry monitoring, recognizing and early warning system according to claim 1, characterized in that: the camera (101) is fixedly arranged on the edge of the bottom plate of an adjacent staggered escalator/moving sidewalk or building; one side of the escalator/moving walk is provided with a support positioned in the triangular area, and the audible and visual alarm (2) is fixedly arranged on the support at one side of the escalator/moving walk.

3. The escalator/moving walk included angle personnel mistaken entry monitoring, recognizing and early warning system according to claim 1, characterized in that: the shooting distance of the camera (101) is at least 3 meters.

4. The escalator/moving walk included angle personnel mistaken entry monitoring, recognizing and early warning system according to claim 1, characterized in that: the FPGA module (1021) adopts a chip of an EP2C70F672C8 model.

5. The escalator/moving walk included angle personnel mistaken entry monitoring, recognizing and early warning system according to claim 1, characterized in that: the memory (1022) is an SDRAM memory and is in the model of HY57V641620H series.

6. The escalator/moving walk included angle personnel mistaken entry monitoring, recognizing and early warning system according to claim 1, characterized in that: the first connection port (1024) is an FMC port.

7. The escalator/moving walk included angle personnel mistaken entry monitoring, recognizing and early warning system according to claim 1, characterized in that: the communication bus (3) is an RS485 bus.

8. The escalator/moving walk included angle personnel mistaken entry monitoring, recognizing and early warning system according to claim 1, characterized in that: the controller (102) also includes a display interface (1026) connected to the FPGA module (1021).

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