CN217296895U

CN217296895U - Reverse monitoring device for escalator

Info

Publication number: CN217296895U
Application number: CN202122913014.0U
Authority: CN
Inventors: 孙心宇; 张俊峰; 王永弟
Original assignee: Nanjing University of Information Science and Technology
Current assignee: Nanjing University of Information Science and Technology
Priority date: 2021-11-25
Filing date: 2021-11-25
Publication date: 2022-08-26
Anticipated expiration: 2031-11-25

Abstract

A walking elevator retrograde monitoring device comprises a detection module, a control module and an alarm module, wherein the detection module comprises a sensor and a detector, and the sensor is arranged at the lower parts of guardrails on two sides of an elevator and is positioned between gaps of adjacent steps of the elevator; the control module comprises a driver and a main control chip, and the main control chip is connected with the detector through an I/O interface. The elevator running state data is collected by arranging the sensor at the elevator step, the result information is transmitted to the control module through the analysis processing of the detector, when the elevator is detected to be in a retrograde motion state, the alarm module gives an alarm for prompting, the control module performs elevator emergency braking, casualties caused by the retrograde motion of the elevator can be reduced to the maximum extent, the running cost of the system is low, the reliability is high, the elevator automatic hand-held elevator has strong practical value, and the elevator automatic hand-held elevator can be applied to the elevator so as to greatly improve the running safety of the elevator.

Description

Reverse-running monitoring device for escalator

Technical Field

The utility model relates to a hand elevator monitoring devices that moves in reverse belongs to elevator safety technical field.

Background

Along with the promotion of living conditions and scientific and technical level, all kinds of large-scale shopping malls pull out the land, improved people's enthusiasm of shopping, also further promoted escalator's development, escalator uses very frequently in daily life, has brought very big good place for people by its advantages such as huge transportation volume and swift current, especially all kinds of shopping malls, airport, subway station, etc., the staircase can improve people's trip efficiency, and when having big luggage, can reduce the physical fatigue that the transport brought. However, when the escalator runs in a reverse direction, serious consequences can be caused. According to the report of the Binhu net, in 12 Yueju years in 2010, a hand elevator which is in an ascending state in Shenzhen city subway, a national trade station, suddenly moves backwards, so that disputed passengers are dragged by the elevator to roll down, and 24 people are injured to different degrees. China longitude and latitude net is also reported and exported, and in 7 and 5 days of 2011, the escalator which originally ascends on the four-line of Beijing subway suddenly moves in the reverse direction, so that 1 death and 30 injuries are caused by accidents. In 2014, a transfer escalator at a world station of the Shanghai temple is in failure and suddenly moves backwards, so that a plurality of people are injured. Because the accident that the escalator moves in the wrong direction and causes takes place mostly, the sudden retrograde motion of escalator can let passenger's focus unbalance fall down, rolls off from the escalator more easily, and this will make the passenger receive the injury that is difficult to estimate, and the number of people is more on the escalator, takes place mutual extrusion very easily and tramples the accident, causes the secondary damage.

The problem that passengers reverse on the escalator is more serious than the problem that passengers reverse on the escalator, and because the sudden reverse of the escalator is difficult for users to expect, people often cannot be in time to become victims of accidents, and are seriously injured. For the defects of the traditional elevator, the usage of people becomes more obvious, so that the situation of preventing the hand elevator from running backwards is very important. The tradition escalator function singleness does not set up the safety function that moves in the wrong direction, has wasted a large amount of human costs and has gone on duty, has the risk of human negligence simultaneously, causes the inaccuracy of data. Under the life style of fast pace at the present stage, the accuracy and the real-time performance of data are very important, and the traditional escalator is obviously different from the traditional escalator, so that the requirement of people on an intelligent elevator is not met.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome not enough among the prior art, provide a hand elevator monitoring safety coefficient that moves in reverse.

In order to solve the technical problem, the utility model discloses an adopt following technical scheme to realize:

a backward movement monitoring device for a hand elevator comprises a detection module, a control module and an alarm module;

the detection module comprises an infrared sensor and a detector which are used for collecting the running state data of the elevator, the infrared sensor is connected with the detector, the infrared sensor is arranged at the step gap, and the arrangement direction of the infrared sensor is parallel to the running direction of the elevator;

the control module comprises a driver and a main control chip, the main control chip is connected with the driver, the main control chip is connected with the detector through an I/O interface, and the driver is externally connected with an emergency brake device of the elevator;

and the alarm module is connected with the main control chip.

Further, the infrared sensor is an infrared pair tube sensor.

Further, the number of the infrared pair tube sensors is at least two.

Further, the number of the infrared pair tube sensors is three.

Furthermore, the three infrared geminate transistors sensors are arranged at the same gap of the adjacent steps, and the arrangement direction of the three infrared geminate transistors sensors is the same as the running direction of the elevator.

Furthermore, the three infrared pair tube sensors are arranged at different gaps between adjacent steps, and the relative arrangement direction of the three infrared pair tube sensors is the same as the running direction of the elevator.

Further, the main control chip is any one of an FPGA chip, a single chip microcomputer or a DSP chip.

Further, the alarm module is a buzzer.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is:

through the detection module who is used for gathering elevator running state data that sets up in elevator step department, a control module and alarm module for controlling the elevator operation according to elevator running state, when detecting out that the elevator is in the retrograde motion state, alarm module carries out the suggestion of reporting to the police, control module carries out elevator emergency braking, casualties that the reduction that can furthest caused because the retrograde motion of elevator, and the running cost of system is low, the reliability is high, has very strong practical value, it will improve the operation safety of elevator greatly to apply it to automatic hand elevator.

Drawings

FIG. 1 is a schematic diagram of the system connection structure of the present invention;

fig. 2 is a diagram of the predicted installation of the infrared pair tube sensor in embodiment 1 of the present invention;

fig. 3 is an actual installation diagram of the infrared pair tube sensor in embodiment 1 of the present invention;

fig. 4 is an actual installation diagram of the infrared pair tube sensor in embodiment 2 of the present invention;

fig. 5 is a working principle block diagram of the present invention.

In the figure: 1 is an infrared geminate transistor sensor A; and 2 is an infrared pair tube sensor B.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Example 1

As shown in fig. 1, the backward movement monitoring device for the escalator comprises a detection module, a control module and an alarm module, wherein the control module is respectively connected with the detection module and the alarm module. The detection module comprises two infrared geminate transistors sensors and a detector, the two infrared geminate transistors sensors are electrically connected with the detector, the two infrared geminate transistors are installed at guard rails on two sides of the step and used for collecting running state data of the elevator and transmitting the running state data of the elevator to the detector through a line, the detector analyzes and processes the running state data of the elevator, judges whether the elevator is in a retrograde motion state or not and sends analysis result information to the control module.

The control module comprises a driver and a main control chip, the main control chip is electrically connected with the driver, the main control chip is connected with the detector through an I/O interface and used for receiving analysis result information sent from the detector and controlling the driver to run or stop according to the analysis result information, and the main control chip can adopt any one of an FPGA chip, a single chip microcomputer or a DSP chip.

The alarm module is a buzzer, the buzzer is electrically connected with the main control chip, and when the elevator is in a reverse running state, the main control chip drives the buzzer to alarm and prompt workers.

As shown in fig. 2, since the passenger stands on the step, in order to prevent the infrared pair tube sensor from misjudging the detection object, two infrared pair tube sensors are installed at the gap of the seam of the adjacent elevator steps, and the relative positions of the two infrared pair tube sensors are staggered by a certain distance, for distinguishing, the infrared pair tube sensor A1 and the infrared pair tube sensor B2 are marked, the connecting line direction of the two infrared pair tube sensors is parallel to the elevator running direction, because the infrared pair tube sensors are installed close to the step, the person can not touch when standing, meanwhile, many existing escalator steps are arc-shaped and can be installed on an arc part, and the person in a narrow space can not touch, so that the passenger is not in the detection range in the case of retrograde motion, thereby ensuring the accuracy and specificity of the escalator retrograde motion detection. According to the sequence that two infrared geminate transistors sensors detected the staircase step, can make the judgement to the staircase behavior, can guarantee to a great extent like this that the staircase is detected fast and is made the processing when going against the way to guarantee passenger's personal safety.

As shown in fig. 3, in order to further prevent the situation that the feet of passengers are covered with two infrared pair tube sensors at the same time, and because the steps of the elevator are relatively static, in the actual installation, in order to avoid the influences of size, mutual interference and the like, the two infrared pair tube sensors are installed at the seams of different adjacent elevator steps, and the relative positions of the two infrared pair tube sensors relative to the same adjacent elevator step are the same as the positions in fig. 2, so that the situation that the feet of passengers are covered with the two infrared pair tube sensors at the same time is effectively avoided, the installation is convenient, and the accuracy of detecting the reverse movement of the elevator is enhanced.

Example 2

In another embodiment, as shown in fig. 4, different from embodiment 1, three infrared pair tube sensors are used and arranged in the manner of fig. 3, so as to further enhance the fault tolerance of the elevator reverse running monitoring system of the present invention

Use embodiment 1 as an example, the utility model discloses a theory of operation: according to the mode of figure 3, two infrared geminate transistors sensors are installed at corresponding positions of the elevator, and whether the elevator runs in the wrong direction or not is judged according to the sequence that the infrared geminate transistor sensor A1 and the infrared geminate transistor sensor B2 are shielded or generate infrared signals. As shown in fig. 5, if the infrared pair tube sensor A1 is firstly shielded by the elevator steps, the infrared pair tube sensor B2 is then shielded by the elevator steps, or the infrared signal of the infrared pair tube sensor A1 is generated, and the infrared signal of the infrared pair tube sensor B2 is generated, the detector analyzes and confirms that the elevator is in a normal running state, otherwise, the elevator is in a retrograde motion state, and sends the analysis result information to the main control chip, when the elevator is in the retrograde motion state, the main control chip sends a signal to the buzzer to perform alarm processing, and controls the driver to emergently stop the elevator, thereby ensuring the safety of passengers.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.

Claims

1. A backward movement monitoring device of a hand elevator is characterized by comprising a detection module, a control module and an alarm module;

the control module comprises a driver and a main control chip, the main control chip is connected with the driver, the main control chip is connected with the detector through an I/O interface, and the driver is externally connected with an elevator emergency braking device;

and the alarm module is connected with the main control chip.

2. The escalator reverse running monitoring device according to claim 1, wherein the infrared sensors are infrared pair tube sensors.

3. A walking elevator retrograde flow monitoring apparatus according to claim 2, wherein said infrared pair of tube sensors is at least two.

4. The escalator reverse running monitoring device according to claim 2, wherein the number of infrared pair tube sensors is three.

5. The device for monitoring the retrograde motion of the escalator as claimed in claim 4, wherein the three infrared pair tube sensors are arranged at the same gap of adjacent steps, and the arrangement direction of the three infrared pair tube sensors is the same as the running direction of the escalator.

6. The device for monitoring the retrograde motion of the escalator as claimed in claim 4, wherein the three infrared pair tube sensors are arranged at different adjacent step gaps, and the relative arrangement direction of the three infrared pair tube sensors is the same as the running direction of the escalator.

7. The device for monitoring the retrograde motion of the escalator as claimed in claim 1, wherein the main control chip is any one of an FPGA chip, a singlechip or a DSP chip.

8. The device for monitoring backward movement of a escalator as claimed in claim 1, wherein said alarm module is a buzzer.