WO2021217822A1

WO2021217822A1 - Contactless aerial imaging elevator operation device

Info

Publication number: WO2021217822A1
Application number: PCT/CN2020/096745
Authority: WO
Inventors: 何云龙; 洪增辉; 贺亚威; 颜展; 江斌; 胡宪旺; 李俊; 张兵
Original assignee: 像航（上海）科技有限公司
Priority date: 2020-04-30
Filing date: 2020-06-18
Publication date: 2021-11-04
Also published as: CN111517189A; CN111517189B

Abstract

A contactless aerial imaging elevator operation device, comprising a box body (5) made of a light-shielding material, a control main board and a detection sensor, an image source (3) and an imaging material (4) being provided in the box body (5), and a light-transmitting portion being provided on the surface of the box body (5); the image source (3) is used for displaying elevator buttons, the imaging material (4) performs mirror imaging on the image source (3), and forms a real image (1) of the image source at a position symmetrical about the imaging material (4), and a light source performs imaging in the air outside the box body (5) through the light-transmitting portion of the box body (5); and the detection sensor detects an object entering a real image operation region, so as to send a coordinate signal of the detected object to the control main board, the control main board performs identification processing on the coordinate signal of the object, determines a correlation between same and the elevator buttons in the image source (3), and sends the correlation to a main control system of an elevator. There is no contact during the process of taking an elevator, and no germ spreads.

Description

Non-contact aerial imaging elevator operating equipment

Technical field

The invention relates to the technical field of elevator control, in particular to an elevator intelligent control equipment.

Background technique

Ordinary elevators need to touch the buttons to complete the operation outside the hall and inside the car, which has potential risks for cross-infection of bacteria and viruses. At present, there are few cases of using non-contact methods to control elevators, and some use voice control technology instead of key operation. The voice-activated elevator can achieve the goal of no contact and avoid cross-infection. The disadvantage is that when there are many people, it is easy to cause mutual interference and misoperation, and it is not friendly enough for people with language barriers.

Summary of the invention

The technical problem to be solved by the present invention is to solve the above-mentioned shortcomings of the prior art and provide a device that can control elevators without contact.

In order to solve the above technical problems, the technical solution adopted by the present invention is: a non-contact aerial imaging elevator operating device, including a box made of light-shielding materials, a control board, and a detection sensor. The box is provided with an image source and imaging The image source is used to display the elevator buttons. The imaging material performs mirror image imaging on the image source, and forms a real image of the image source at a symmetrical position with respect to the imaging material. The image source transmits through the box. The light part is imaged in the air outside the box; the detection sensor detects objects entering the real image operation area, so as to send the coordinate signal of the detected object to the main control system, and control the main board to recognize the coordinate signal of the object. Determine the corresponding relationship with the elevator buttons in the image source, and send the corresponding relationship to the elevator main control system.

Further, the display interface of the image source includes buttons on some floors, and the buttons on the remaining floors are in the form of one or more sets, and each set forms a button. When the control board detects that the set buttons are triggered, the image The new interface is displayed in the source, and the interface contains the buttons for each floor in the set.

Further, the image source and the imaging material are set at a certain angle so that the plane where the real image is located is at an angle of 30°-90° with the horizontal plane.

Further, the detection device is an infrared sensor, which detects and tracks an object by detecting reflected infrared light. The sensor includes an optical system, and each optical system unit includes an infrared beam transmitter and receiver combination.

Further, the control main board is connected to the main control system of the elevator through the RS485 bus or the CAN bus.

It can be seen from the above technical solutions that the utility model has the following advantages: no contact during the elevator ride, and no germs are transmitted. The interface is simple and universal, can support plug and play, low development cost and cycle; the system is independent and stable, and does not affect the elevator quality. The operation accuracy is high, and it can be used by different groups of people; it can realize single support for multiple floors, save equipment cost and reduce equipment volume; it can realize the fast access between equipment and existing elevators, the interface is simple and universal, and it can support plug and play.

Description of the drawings

Figure 1 is a schematic diagram of the structure of the present invention;

Figure 2 is one of the interface diagrams of the image source in the present invention;

Figure 3 is another interface diagram of the image source in the present invention;

Fig. 4 is a schematic diagram of the structure of the imaging material used in the present invention.

Detailed ways

The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in Figure 1, the non-contact aerial imaging elevator operating equipment of the present invention includes a box body 5 made of light-shielding materials, a detection device and a control board. The box body 5 is provided with an image source 3 and an imaging material 4, and The surface of the box body is provided with a light-transmitting part, and the light-transmitting part can be made of toughened glass. Image source 3 is used to display elevator buttons, and its imaging content is controlled by the control main board. The imaging material images the image source in a mirror image and forms a real image 1 of the image source at a symmetrical position with respect to the imaging material. The image source passes through the light-transmitting part of the box and displays in the air outside the box. The angle setting makes the plane where the real image is located and the horizontal plane are at an angle of 30°-90°.

The specific structure of the imaging material is as shown in Figure 4, which includes a light-transmitting laminate with an even number of layers. The distance between the surfaces bonded to two adjacent transparent strips is the width of the transparent strips, and the mutually bonded surfaces of the transparent strips and/or the opposite surfaces of the mutually bonded surfaces are provided with reflective surfaces, the The reflective surface includes but is not limited to a reflective film or a reflective sheet or a metal-plated layer, which is used to reflect light to realize the transformation of the propagation direction of the light in the optical imaging element, and the transparent strips of two adjacent layers of light-transmitting laminates are orthogonal to each other; The transparent strips of each layer of the light-transmitting laminate include: a first transparent strip, a second transparent strip, and a plurality of third transparent strips. The first transparent strips and the second transparent strips are separately arranged on the transparent strips. On both sides of the laminated body, a number of third transparent strips are arranged between the first transparent strip and the second transparent strip, and the sum of the widths of the first transparent strip and the second transparent strip is the same as the third transparent strip. The widths of the bars are equal. The specific structure of the imaging material has been disclosed in detail in the two patents previously filed by Xianhang (Shanghai) Technology Co., Ltd. with application numbers CN201911021229.2 and CN201810155532.0, and will not be repeated here.

The detection device may adopt an infrared touch sensor or an ultrasonic sensor. The infrared touch sensor is placed corresponding to the position of the aerial imaging, so that the plane formed by the emission direction of the infrared rays coincides with or parallel to the plane formed by the aerial imaging. The user selects the elevator floor by clicking on the floor digital sign on the aerial imagery. The control principle is as follows: the infrared sensor detects the object entering the real image operation area, so that the coordinate signal of the detected object is sent to the main control system to control the main board Recognize the coordinate signal of the object, determine its corresponding relationship with the elevator buttons in the image source, and send the corresponding relationship to the elevator main control system. Specifically, an infrared sensor is used to detect and track an object by detecting reflected infrared light. The sensor includes an optical system, and each optical system unit includes an infrared beam transmitter and receiver combination. The infrared beam is emitted perpendicular to the output window, and the receiver's field of view is centered at a certain angle from left to right. Each transmitter-receiver combination covers a narrow area on the effective area. The presence of objects in the sensing area will affect several transmitter-receiver channels, and the reported coordinates are the result of calculations on these signals.

The detection principle of the ultrasonic sensor is as follows: IO triggers ranging, covering the corresponding sensing area at the angle of horizontal and vertical emission respectively, and giving a high-level signal of at least 10 us. The module automatically sends 8 40khz square waves, and automatically detects whether there is a signal return. If there is a signal return, a high level is output through IO, and the duration of the high level is the time from emission to return of the ultrasonic wave. Test distance = (high level time * speed of sound)/2.

The display interface of the image source is shown in Figure 2. It includes buttons on some floors, and the buttons on the remaining floors are in the form of one or more sets. Each set forms a button. When the control board detects that the set buttons are triggered When the time, a new interface is displayed in the image source, as shown in Figure 3, and the interface contains the buttons for each floor in the set. For elevators in high-rise buildings, a floor switching option is added to the man-machine interface of the equipment to realize single support for multiple floors. To achieve the purpose of saving equipment cost and reducing equipment volume.

The control board is connected to the main control system of the elevator through the RS485 bus or the CAN bus, and is connected to the elevator buttons and the pin lines of the button lights through the pin lines. Consider the cost and difficulty of system development, integration, installation, maintenance, and realize the modular characteristics of floating projection, without changing the original elevator system, and the information synchronization between the two operation panels, using the parallel method, that is, the two operation The keys of the panel and the key light circuits are connected in parallel.

The elevator equipment of the present invention has no contact during the elevator ride and does not spread germs. The interface is simple and universal, can support plug and play, low development cost and cycle; the system is independent and stable, and does not affect the elevator quality. The operation accuracy is high, and it is universal for different groups of people.

The specific work flow of this equipment is as follows: the imaging material displays the interface of the image source in the air outside the box, the user clicks the virtual button in the air, the sensor detects the real image area, recognizes the user's finger position information, and controls the main board according to the coordinates The position information judges the virtual key pressed, and sends the key information to the main control system of the elevator. The control system of the elevator realizes the elevator's lifting and opening and closing. For elevators with higher floors, in order to ensure touch accuracy, multiple interfaces can be used to display all floor buttons, thereby reducing the image source area and equipment volume.

Claims

A non-contact aerial imaging elevator operating equipment, which is characterized in that it comprises a box made of light-shielding materials, a control main board and a detection sensor. The box is provided with an image source and imaging materials, and a transparent surface is provided on the surface of the box. The image source is used to display the elevator buttons. The imaging material images the image source in a mirror image and forms a real image of the image source at a symmetrical position about the imaging material. The light of the image source passes through the transparent part of the box and is in the air outside the box. Perform imaging; the detection sensor detects the objects that enter the real image operation area, so as to send the coordinate signal of the detected object to the main control system, and control the main board to recognize the coordinate signal of the object, and determine the relationship between it and the elevator button in the image source Correspondence, and send the correspondence to the elevator main control system.
The non-contact aerial imaging elevator operating device according to claim 1, characterized in that: the display interface of the image source includes buttons on some floors, and the buttons on the other floors exist in the form of one or more sets, each set A button is formed. When the control board detects that the set of buttons is triggered, a new interface is displayed in the image source, and the interface contains the buttons of each floor in the set.
The non-contact aerial imaging elevator operating device according to claim 1 or 2, characterized in that the image source and the imaging material are arranged at a certain angle so that the plane where the real image is located and the horizontal plane are at an angle of 30°-90°.
The non-contact aerial imaging elevator operating equipment according to claim 1, characterized in that: the detection device is an infrared sensor, which detects and tracks an object by detecting reflected infrared light, the sensor includes an optical system, and each optical system The unit includes an infrared beam transmitter and receiver combination.
The non-contact aerial imaging elevator operating device according to claim 1, wherein the control main board is connected to the main control system of the elevator through a bus.
The non-contact aerial imaging elevator operating device according to claim 1, wherein the control board is connected to the elevator buttons and the pin lines of the button lights through pin lines.