CN114044416A - Hand position recognition device for elevator - Google Patents
Hand position recognition device for elevator Download PDFInfo
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- CN114044416A CN114044416A CN202111649022.7A CN202111649022A CN114044416A CN 114044416 A CN114044416 A CN 114044416A CN 202111649022 A CN202111649022 A CN 202111649022A CN 114044416 A CN114044416 A CN 114044416A
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- hand position
- main control
- dimensional laser
- elevator
- laser ranging
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- 238000000034 method Methods 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000002955 isolation Methods 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000004048 modification Effects 0.000 abstract description 3
- 238000012986 modification Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 230000001960 triggered effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/46—Adaptations of switches or switchgear
- B66B1/468—Call registering systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B2201/00—Aspects of control systems of elevators
- B66B2201/40—Details of the change of control mode
- B66B2201/46—Switches or switchgear
- B66B2201/4607—Call registering systems
- B66B2201/4638—Wherein the call is registered without making physical contact with the elevator system
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention provides a hand position recognition device for an elevator, which is low in cost and small in modification amount and uses a non-contact operation mode. Comprises an interface board; particularly, the hand position identification host is also included; the hand position recognition host comprises a shell, a main control board, at least 1 two-dimensional laser ranging module and at least 2 cameras; the two-dimensional laser ranging module and the camera are communicated with the main control board; the main control board is communicated with the interface board through a cable; the direction of the scanning surface of the two-dimensional laser ranging module is the same as the direction of the camera; the main control board judges the target intention key position according to the distance information provided by the two-dimensional laser ranging module and the direction information provided by the camera and conducts the key position through the interface board. The invention has the beneficial effects that: the hand position identification host machine is very small in size, does not influence attractiveness, is sensitive in operation and accurate in identification, can be arranged in a newly-installed car, can also be applied to later-stage installation of a non-new car, and is low in construction amount and cost.
Description
Technical Field
The invention belongs to the field of elevator equipment, and particularly relates to a device for inputting an operation instruction to an elevator.
Background
Many non-contact elevator call solutions have emerged to reduce access to utility devices with the goal of reducing the way in which disease is transmitted. For example, voice recognition, gesture recognition through light reflection, a photosensitive element arranged on the button and the like are used for replacing the traditional mechanical button pressing to realize the input of the operation instruction of the elevator. However, voice recognition is prone to failure in a noisy environment, gesture recognition through light reflection can only be applied to calling up and down operation at present and is not applicable to floor registration operation, and the scheme of arranging the photosensitive elements on the buttons requires replacement of all traditional buttons and control panels thereof, so that the method is only applicable to the situation of newly installing an elevator, and otherwise, the cost of modification is too high.
Therefore, further innovation is needed in the conventional non-contact elevator operation input method.
Disclosure of Invention
The invention aims to provide a hand position recognition device for an elevator, which is low in cost and small in modification amount and uses a non-contact operation mode.
In order to achieve the purpose, the invention adopts the following technical scheme:
a hand position recognition device for an elevator comprises an interface board, a key position switch and a key position switch, wherein the interface board is used for executing corresponding key position conduction; particularly, the hand position identification host is also included; the hand position recognition host comprises a shell, a main control board, at least 1 two-dimensional laser ranging module and at least 2 cameras; the two-dimensional laser ranging module and the camera are communicated with the main control board; the main control board is communicated with the interface board through a cable; the direction of the scanning surface of the two-dimensional laser ranging module is the same as the direction of the camera; the main control board judges the target intention key position according to the distance information provided by the two-dimensional laser ranging module and the direction information provided by the camera and conducts the key position through the interface board.
The working principle of the hand position recognition device is as follows: when the two-dimensional laser ranging module works, the two-dimensional laser ranging module emits a fan-shaped scanning surface which is almost a plane through the emission window, and the scanning surface is usually within the included angle range of 30-90 degrees according to the specification of the two-dimensional laser ranging module. The hand position recognition host machine is arranged above the existing button area of the car, the scanning surface of the two-dimensional laser ranging module is covered in front of the button area, generally, the scanning surface is covered in the position of about 2-5 cm in front of the button area, all objects passing through the scanning plane reflect laser, the reflected laser can be received by the receiving window of the two-dimensional laser ranging module, the distance between the object and the receiving window is measured after the processing of the module, and the measured distance data is input to the main control board as one of judging elements. Because the two-dimensional laser ranging module can only measure the distance between an object and the receiving window, but 2 rows or even 3 rows of buttons are often arranged in the button area covered by the scanning surface, under the condition, the number of the buttons with the same distance from the receiving window of the two-dimensional laser ranging module can be 2 or even 3, and the main control board cannot judge which target intention key position of the user is. Therefore, the hand position recognition host machine is also provided with at least 2 cameras to form binocular orientation, namely, when the fingers are close enough to the pressed buttons, the fingers can be shot by the 2 cameras at the same time, and video images shot by the cameras are transmitted to the main control board in real time for visual judgment. Because the distance between the cameras is fixed and unchangeable, and when the fingers are in front of the same target intention key position, the images shot by the two cameras are distinguished by the main control board, so that the main control board can judge which row of buttons the fingers fall in front of according to the images of the two cameras, and the main control board can accurately judge the target intention key position of the user by combining the distance data of the two-dimensional laser ranging module. The main control board subsequently gives the interface board signals to enable the interface board to conduct the corresponding key positions, thereby realizing non-contact operation instead of physical contact.
Preferably, the length of the hand position identification host is not more than 200mm, the width is not more than 70mm, and the thickness is not more than 50 mm.
As the preferred scheme, the hand position identification host is provided with a USB interface for debugging, setting and upgrading software, and the USB interface is communicated with the main control board.
As the preferred scheme, the hand position recognition host computer communicates with the interface board by adopting an RS485 protocol.
As a preferred scheme, the interface channel of the interface board is in an optical coupling isolation type, so that the interface board can be isolated from a button circuit of an original factory, and the normal work of an original key position cannot be influenced even if the interface board fails.
Preferably, the interface board is further provided with an expansion interface, and when the number of interface channels on a single interface board is not enough, another interface board can be connected through the expansion interface to expand enough interface channels.
The invention has the beneficial effects that: the hand position identification host machine is very small in size, does not influence attractiveness, is sensitive in operation and accurate in identification, can be arranged in a newly-installed car, can also be applied to later-stage additional installation of a non-new car, is small in additional construction amount and low in cost, and is easy to widely popularize.
Drawings
FIG. 1 is a circuit schematic block diagram of an embodiment;
FIG. 2 is a schematic diagram of an appearance structure of the hand position recognition host according to the embodiment;
FIG. 3 is a first schematic diagram of the installation and operation of the embodiment;
fig. 4 is a second principle diagram of the installation and operation of the embodiment.
Description of reference numerals: 1-hand position identification host; 10-a housing; 2-a working window; 3-a first camera; 4-a second camera; 21-scanning surface.
Detailed Description
The invention is further illustrated by the following figures and examples.
A hand position recognition device for an elevator is shown in figures 1 and 2 and comprises a hand position recognition main machine 1 and an interface board.
Wherein, hand position discernment host computer 1 includes shell 10, main control board, two-dimensional laser rangefinder module, first camera 3 and second camera 4.
Two-dimensional laser rangefinder module, first camera 3 and second camera 4 all communicate with the main control board. Each interface channel of the interface board is used for executing corresponding key position conduction, and the interface board is communicated with the main control board through cables, and the interface board and the main control board are respectively positioned at different positions of the car. In this embodiment, the transmitting window and the receiving window of the two-dimensional laser ranging module are the same window, which is called as a working window 2, the first camera 3 and the second camera 4 are disposed on the same surface of the housing 1, the orientation of the scanning surface 21 transmitted by the working window 2 of the two-dimensional laser ranging module is the same as the orientations of the first camera 3 and the second camera 4, and the working window 2 is located near the middle position between the first camera 3 and the second camera 4, which is beneficial to improving the accuracy of the judgment of the main control board on the direction of the target intention key position. The main control board can quickly and accurately judge the target intention key position according to the distance information provided by the two-dimensional laser ranging module and the direction information provided by the camera and conduct the key position through the interface board.
The installation process of the hand position recognition device for the elevator of the embodiment is as follows: as shown in fig. 3 and 4, the hand position recognition main machine 1 is installed above the mechanical button area of the car, and the scanning surface 21 of the two-dimensional laser ranging module is covered at a position about 3cm in front of the mechanical button area, at this time, the scanning surface should be as parallel as possible to the plane where the mechanical button area is located, and the scanning surface 21 should be ensured to cover the front of all keys in the mechanical button area. In addition, the interface board is placed on the back of the panel where the mechanical button area is located so as to be convenient to mount and protect, the interface board is communicated with the main control board through a cable, one path of interface channel on the interface board is correspondingly communicated to one mechanical button, all the mechanical buttons are connected to the interface board, and the corresponding relation between the serial number of the interface channel and the key positions of the mechanical buttons is recorded.
The debugging process of the hand position recognition device for the elevator of the embodiment is as follows: the method comprises the steps of communicating a main control board of a hand position recognition host 1 with a PC (personal computer) or a mobile terminal by using a USB (universal serial bus) cable, operating software on the PC or the mobile terminal to enable the main control board to record distance information sent by a two-dimensional laser ranging module and direction information provided by a camera at the moment under the condition of ensuring that a finger passes through a scanning surface of the two-dimensional laser ranging module and ensuring that the finger points to the center of a certain mechanical key, binding the information and a recorded serial number of an interface channel and storing the information and the recorded serial number on the main control board, wherein the serial number of the interface channel is recorded into the main control board by the PC or the mobile terminal, and the recorded serial number of the interface channel is according to the corresponding relation between the recorded serial number of the interface channel and key positions of the mechanical key during installation. The steps are repeated to set the distance information, the direction information and the like corresponding to all the mechanical keys on the main control board.
At ordinary times, the two-dimensional laser ranging module is in a detection state, when a slender opaque object such as a human finger passes through the scanning surface of the two-dimensional laser ranging module, the two-dimensional laser ranging module is triggered to measure the distance between the object and the working window 2, and the distance information is input into the main control board, the main control board is triggered after receiving the distance information to further collect and identify images from the first camera 3 and the second camera 4, so as to judge the direction information of the object, then the main control board compares the distance information and the direction information with data set and stored during debugging to obtain the closest entry, and then the interface board is conducted to the interface board signal according to the serial number of the interface channel in the entry to conduct the corresponding interface channel automatically so as to replace the physical contact of the finger to the mechanical key position, non-contact operation is achieved.
The description is only one of the preferred embodiments of the present invention, and all technical equivalents which come within the spirit and scope of the present invention are therefore considered to be within the scope of the present invention.
Claims (8)
1. A hand position recognition device for an elevator comprises an interface board, a key position switch and a key position switch, wherein the interface board is used for executing corresponding key position conduction; the method is characterized in that: the hand position recognition host is also included; the hand position recognition host comprises a shell, a main control board, at least 1 two-dimensional laser ranging module and at least 2 cameras; the two-dimensional laser ranging module and the camera are communicated with the main control board; the main control board is communicated with the interface board through a cable; the direction of the scanning surface of the two-dimensional laser ranging module is the same as the direction of the camera; the main control board judges the target intention key position according to the distance information provided by the two-dimensional laser ranging module and the direction information provided by the camera and conducts the key position through the interface board.
2. The hand position recognition apparatus for an elevator as claimed in claim 1, wherein: the scanning surface of the two-dimensional laser ranging module is within the included angle range of 30-90 degrees.
3. The hand position recognition apparatus for an elevator as claimed in claim 1, wherein: the length of the hand position identification host is not more than 200mm, the width is not more than 70mm, and the thickness is not more than 50 mm.
4. The hand position recognition apparatus for an elevator as claimed in claim 1, wherein: the hand position identification host is provided with a USB interface for debugging, setting and upgrading software, and the USB interface is communicated with the main control board.
5. The hand position recognition apparatus for an elevator as claimed in claim 1, wherein: the hand position identification host and the interface board are communicated by adopting an RS485 protocol.
6. The hand position recognition apparatus for an elevator as claimed in claim 1, wherein: the interface channel of the interface board is in an optical coupling isolation type.
7. The hand position recognition apparatus for an elevator as claimed in claim 1, wherein: the interface board is also provided with an expansion interface.
8. The hand position recognition apparatus for an elevator as claimed in claim 1, wherein: the transmitting window and the receiving window of the two-dimensional laser ranging module are the same window.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111649022.7A CN114044416A (en) | 2021-12-31 | 2021-12-31 | Hand position recognition device for elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111649022.7A CN114044416A (en) | 2021-12-31 | 2021-12-31 | Hand position recognition device for elevator |
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| Publication Number | Publication Date |
|---|---|
| CN114044416A true CN114044416A (en) | 2022-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111649022.7A Pending CN114044416A (en) | 2021-12-31 | 2021-12-31 | Hand position recognition device for elevator |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204675569U (en) * | 2015-04-24 | 2015-09-30 | 蒂森克虏伯电梯（上海）有限公司 | Lift car instruction acquisition system |
| CN104991637A (en) * | 2015-05-19 | 2015-10-21 | 浙江大学 | Close-range non-contact elevator button panel and control method thereof |
| CN207810971U (en) * | 2017-07-14 | 2018-09-04 | 嘉兴职业技术学院 | A kind of virtual operation panel of laser |
| CN109843769A (en) * | 2017-02-08 | 2019-06-04 | 尹一植 | Utilize the elevator motion control device and method of display |
| CN111153301A (en) * | 2020-03-04 | 2020-05-15 | 广东伟邦科技股份有限公司 | Contact-free elevator calling method |
| KR20210087620A (en) * | 2020-01-03 | 2021-07-13 | 주식회사 대솔이엘 | Apparatus for controlling the Motion of Elevators detecting the movement of the hands |
-
2021
- 2021-12-31 CN CN202111649022.7A patent/CN114044416A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204675569U (en) * | 2015-04-24 | 2015-09-30 | 蒂森克虏伯电梯（上海）有限公司 | Lift car instruction acquisition system |
| CN104991637A (en) * | 2015-05-19 | 2015-10-21 | 浙江大学 | Close-range non-contact elevator button panel and control method thereof |
| CN109843769A (en) * | 2017-02-08 | 2019-06-04 | 尹一植 | Utilize the elevator motion control device and method of display |
| CN207810971U (en) * | 2017-07-14 | 2018-09-04 | 嘉兴职业技术学院 | A kind of virtual operation panel of laser |
| KR20210087620A (en) * | 2020-01-03 | 2021-07-13 | 주식회사 대솔이엘 | Apparatus for controlling the Motion of Elevators detecting the movement of the hands |
| CN111153301A (en) * | 2020-03-04 | 2020-05-15 | 广东伟邦科技股份有限公司 | Contact-free elevator calling method |
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Application publication date: 20220215 |