KR20150049650A - Forklift truck alram and stop control system by measuring distance of obstacle - Google Patents

Forklift truck alram and stop control system by measuring distance of obstacle Download PDF

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Publication number
KR20150049650A
KR20150049650A KR1020130130465A KR20130130465A KR20150049650A KR 20150049650 A KR20150049650 A KR 20150049650A KR 1020130130465 A KR1020130130465 A KR 1020130130465A KR 20130130465 A KR20130130465 A KR 20130130465A KR 20150049650 A KR20150049650 A KR 20150049650A
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KR
South Korea
Prior art keywords
forklift
obstacle
alarm
distance
output
Prior art date
Application number
KR1020130130465A
Other languages
Korean (ko)
Inventor
김기한
Original Assignee
현대중공업 주식회사
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Publication date
Application filed by 현대중공업 주식회사 filed Critical 현대중공업 주식회사
Priority to KR1020130130465A priority Critical patent/KR20150049650A/en
Publication of KR20150049650A publication Critical patent/KR20150049650A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
    • B66F17/003—Safety devices, e.g. for limiting or indicating lifting force for fork-lift trucks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/07581—Remote controls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/10—Road Vehicles
    • B60Y2200/15—Fork lift trucks, Industrial trucks
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
    • G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link

Abstract

The forklift alarm and stop control system according to an embodiment of the present invention includes an obstacle sensing unit for sensing a proximity distance of an obstacle close to a forklift and outputting an obstacle sensing signal, An arithmetic processing unit for determining whether the obstacle detection signal is outputted corresponding to the operation signal outputted from the forklift and calculating the proximity distance of the obstacle by using the outputted obstacle detection signal, To the user via the wireless network, and to wirelessly instruct the user to selectively control the alarm output or the operation stop of the forklift.

Description

TECHNICAL FIELD [0001] The present invention relates to a forklift alarm and stop control system,

The present invention relates to a forklift alarm and stop control system by measuring an approach distance of an obstacle, and more particularly, to a system and method for operating a plurality of forklifts provided in a workplace, The present invention relates to a forklift alarm and a stop control system by an obstacle proximity distance measurement capable of preventing an accident.

Generally, construction equipment is widely used in industrial fields such as civil engineering, construction, shipyards, and the like. A typical construction equipment is a forklift.

A forklift is used to lift and load heavy cargoes by generating hydraulic pressure by the power output from an engine or a battery, or to load and unload cargoes in various transportation vehicles. However, in operating such a forklift, safety surroundings are required.

Particularly, since the forklift has a high garage, it is difficult for the driver to visually confirm the presence of such an obstacle when the height of the surrounding obstacle is low. In addition, when another worker enters the work radius of the forklift, there is a possibility that a safety accident due to a collision between the worker and the forklift may be caused.

A prior art related to the present invention is Korean Patent Laid-Open Publication No. 2009-0069431 (published on Jul. 1, 2009), which discloses a technology relating to a peripheral warning device for a forklift.

The present invention provides a forklift alarm and a stop control system by an obstacle proximity distance measurement that can wirelessly control alarm output or forklift stop control by proximity distance measured between a forklift and an obstacle.

The problems to be solved by the present invention are not limited to the above-mentioned problems, and another problem (s) not mentioned here will be clearly understood by those skilled in the art from the following description.

According to an embodiment of the present invention, an obstacle sensing unit senses a proximity distance of an obstacle close to a forklift and outputs an obstacle sensing signal. An operation signal sensing unit for sensing an operation signal of the forklift; An arithmetic processing unit for determining whether the obstacle detection signal is output corresponding to the operation signal output from the forklift and calculating a proximity distance of the obstacle using the output signal; And an integration server for wirelessly receiving the operation result of the operation processing unit via a wireless network to allow a user to monitor the operation and to selectively control the alarm output or the operation stop of the forklift, And provides a forklift alarm and stop control system by proximity distance measurement.

At this time, when the proximity distance between the obstacle sensed by the obstacle sensing unit and the forklift is within the first safety distance, the arithmetic processing unit may wirelessly transmit the result information to the integration server so as to output an alarm of the forklift .

The calculation processing unit may wirelessly transmit the result information to the integration server so as to stop the operation of the forklift when the proximity distance between the obstacle detected by the obstacle detection unit and the forklift is within the second safety distance have.

Also, the alarm output or the operation stop of the forklift can be controlled wirelessly using an operator's portable terminal capable of wireless communication with the integrated server.

Wherein the obstacle sensing unit comprises: a proximity sensor for sensing an obstacle within a set safety distance from the forklift; And a heat sensing sensor for sensing heat emitted from the obstacle within a set safety distance from the forklift.

And an alarm signal output unit for outputting an alarm of the forklift. The alarm signal output unit may be a speaker for outputting an audio signal or a light emission lamp for lighting in a predetermined order.

It is possible to wirelessly control the control for forcibly stopping the forklift operation by outputting an alarm for each close distance measured between the forklift and the obstacle according to an embodiment of the present invention, thereby preventing the occurrence of a safety accident in advance.

In particular, if an obstacle is detected within the first safety distance (eg, 3 m), an alarm in the form of visual or audible information is output to ventilate the area, and if an obstacle is detected within a second safety distance The operation of the forklift can be forcibly stopped. Accordingly, occurrence of a safety accident due to a forklift in the workplace can be greatly reduced.

In addition, the alarm output and the forklift operation stop control can be wirelessly controlled through a remote server or a portable terminal, so that it is possible to more effectively prevent safety at work sites where a large number of forklifts are simultaneously operated.

1 is a conceptual diagram of a forklift alarm and a stop control system by measuring an approach distance of an obstacle according to an embodiment of the present invention;
2 is a conceptual diagram of a forklift alarm and a stop control system by measuring an approach distance of an obstacle according to an embodiment of the present invention.
3 is a block diagram of an internal configuration of a forklift according to an embodiment of the present invention;
FIG. 4 is an operational view of a forklift alarm and shutdown control system according to an embodiment of the present invention; FIG.

The terms and words used in the present specification and claims should not be construed as limited to ordinary or preliminary meaning and the inventor shall properly define the concept of the term in order to describe its invention in the best possible way It should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention.

It should be noted that the embodiments described in the specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention, It should be understood that various equivalents and modifications may be present.

Hereinafter, a forklift alarm and a stop control system according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a conceptual diagram of a forklift alarm and stop control system (hereinafter simply referred to as a "forklift control system") according to an obstacle proximity distance measurement according to an embodiment of the present invention.

1, the illustrated forklift control system includes an obstacle sensing unit 110, an operation signal sensing unit 120 and an operation processing unit 130 provided in the forklift 100, And an integrated server 200 connected to the Internet.

The obstacle detection unit 110 senses the proximity distance of the obstacle close to the forklift 100 and outputs an obstacle detection signal by setting the set radius to the safety distance R. [

The operation signal sensing unit 120 senses an operation signal of the forklift.

The arithmetic processing unit 130 determines whether the obstacle detection signal is outputted in response to the operation signal output from the forklift 100. The distance between the obstacle and the forklift, that is, the proximity distance is calculated using the output signal of the obstacle detection unit.

Meanwhile, the operation result of the operation processing unit 130 provided in the forklift is transmitted to the integration server 200 using the wireless network.

The integration server 200 receives the operation result of the operation processing unit from a remote location on the wireless network and allows a user (for example, a supervisor) to monitor the operation of the forklift, do.

In particular, when the obstacle is located within the first safety distance (for example, 3 m) according to the proximity distance between the obstacle and the forklift, an alarm is output from the forklift. When the obstacle is located within the second safety distance So that a safety accident can be prevented.

In addition to the integrated server 200, the forklift can be connected to the portable terminal 300 of a worker or a supervisor through a wireless network. In this case, the remote sensory reader can wirelessly control the alarm signal output of the forklift in emergency or the forcible stop of the forklift using his own smart phone.

2 is a conceptual diagram of a forklift alarm and a stop control system by measuring an approach distance of an obstacle according to an embodiment of the present invention.

As shown in the figure, the first safety distance R1 may be set within a radius of 3 m and the second safety distance R2 may be set within a radius of 1 m around the forklift 100.

If the calculation processing unit 130 determines that the proximity distance between the obstacle detected by the obstacle sensing unit 110 and the forklift is within the first safety distance R1, the arithmetic processing unit 130 transmits an alarm of the forklift And transmits the result information to the integration server 200 via the wireless link.

Then, the integration server 200 controls the forklift 100 by wireless communication to output an alarm.

When the calculation processing unit 9130 determines that the proximity distance between the obstacle detected by the obstacle sensing unit 110 and the forklift is within the second safety distance R2, the arithmetic processing unit 130 immediately transmits the operation of the forklift via the wireless network And transmits the result information to the integration server 200 via the wireless link.

Accordingly, the integration server 200 immediately stops the operation of the forklift 100 by wireless communication to prevent a safety accident.

3 is a block diagram illustrating an internal configuration of a forklift according to an embodiment of the present invention.

The forklift 100 may include an obstacle sensing unit 110, an operation signal sensing unit 120 and an arithmetic processing unit 130 as well as a plurality of structures related to an alarm and stop operation of a forklift.

The obstacle sensing unit 110 senses an obstacle, i.e., an object or a person, approaching the forklift. To this end, the obstacle sensing unit 110 includes a proximity sensor 111 and a heat sensing sensor 113.

The proximity sensor 111 senses an obstacle near the first and second safety distances set from the forklift by using a laser or an ultrasonic sensor.

The heat sensor 113 used in conjunction with the proximity sensor 111 senses heat emitted from an object or an obstacle approaching the forklift to recognize the presence of an obstacle.

The operation signal sensing unit 120 may include a seating sensing unit that senses when the driver of the forklift is seated in the driver's seat. A load sensing sensor such as a load cell may be used as the seating sensing unit.

The operation processing unit 130 senses an operation signal of the forklift output from the operation signal sensing unit 120 and detects an obstacle from the obstacle sensing unit 110, that is, the proximity sensor 111 and the heat sensing sensor 113 And receives a signal to determine whether there is an obstacle within the set safety distance.

The integration server 200 receives the determination result of the operation processing unit 130 on the wireless network and wirelessly controls the alarm output or the operation stop of each of the plurality of forklifts.

On the other hand, when an operator's portable terminal (300 in Fig. 1) capable of wireless communication with the integrated server 200 (for example, smart phone or the like) is used, alarm output or operation stop of the forklift can be controlled wirelessly.

FIG. 4 is an operation diagram of a forklift alarm and stop control system according to an embodiment of the present invention.

The integrated server 200 and the portable terminal 300 (e.g., a smart phone) are connected to the forklift 100 through a wireless network. Accordingly, it is possible to constantly monitor the state of the forklift 100 being operated in the workplace S on a remote basis. If there is a risk of a safety accident such as the presence of an obstacle in the safety distance, the alarm output or emergency stop of the forklift You can force control.

Meanwhile, when the alarm output is controlled to the forklift side by wireless through the integrated server 200 or the portable terminal 300, an alarm is output through the alarm signal output unit (140 in FIG. 3).

The alarm signal output section may use a speaker (141 of FIG. 3) and / or a light emission lamp (143 of FIG. 3) for outputting an audio signal. The light emission lamp 143 includes low-power light emitting diodes of various colors.

For example, when an obstacle is not detected in the vicinity of the forklift, the green light emitting diode is turned on. On the contrary, when an obstacle is detected in the vicinity of the forklift, the red light emitting diode may be turned on.

As described above, it is possible to wirelessly control the control for forcibly stopping the forklift operation by outputting an alarm for each close distance measured between the forklift and the obstacle according to the embodiment of the present invention, thereby preventing the occurrence of a safety accident .

In particular, if an obstacle is detected within the first safety distance (eg, 3 m), an alarm in the form of visual or audible information is output to ventilate the area, and if an obstacle is detected within a second safety distance The operation of the forklift can be forcibly stopped. Accordingly, occurrence of a safety accident due to a forklift in the workplace can be greatly reduced.

In addition, the alarm output and the forklift operation stop control can be wirelessly controlled through a remote server or a portable terminal, so that it is possible to more effectively prevent safety at work sites where a large number of forklifts are simultaneously operated.

As described above, the forklift alarm and the stop control system by measuring the proximity distance of the obstacle according to the preferred embodiment of the present invention have been described in detail.

It is to be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive, and the scope of the present invention will be indicated by the appended claims rather than by the foregoing detailed description. It is intended that all changes and modifications that come within the meaning and range of equivalency of the claims, as well as any equivalents thereof, be within the scope of the present invention.

R1: 1st safety clearance
R2: 2nd safety distance
100: Forklift truck
110:
120: Operation signal detection unit
130:
140: Alarm output section
141: Speaker
143: Lamp
150: Wireless communication module
200: Integration Server
300: portable terminal

Claims (6)

An obstacle detection unit that detects a proximity distance of an obstacle close to the forklift and outputs an obstacle detection signal;
An operation signal sensing unit for sensing an operation signal of the forklift;
An arithmetic processing unit for determining whether the obstacle detection signal is output corresponding to the operation signal output from the forklift and calculating a proximity distance of the obstacle using the output signal; And
And an integration server that wirelessly receives an operation result of the operation processing unit via a wireless network and remotely receives the operation result and allows the user to monitor and control the alarm output or operation stop of the forklift, Forklift alarm and stop control system by distance measurement.
The method according to claim 1,
Wherein the calculation processing unit is configured to calculate an obstacle proximity distance to wirelessly transmit the result information to the integration server so as to output an alarm of the forklift when the proximity distance between the obstacle detected by the obstacle sensing unit and the forklift is within the first safety distance, Forklift alarm and stop control system by measuring.
The method according to claim 1,
Wherein the calculation processing unit includes an obstacle proximity detection unit that wirelessly transmits the result information to the integration server to stop the operation of the forklift when the proximity distance between the obstacle detected by the obstacle detection unit and the forklift is within the second safety distance, Forklift alarm and stop control system by distance measurement.
The method according to claim 1,
Wherein the forklift alarm and the stop control system are implemented by an obstacle proximity distance measurement by wirelessly controlling the alarm output or the operation stop of the forklift using a portable terminal of an operator capable of wireless communication with the integration server.
The method according to claim 1,
The obstacle detection unit
A proximity sensor for sensing an obstacle within a set safety distance from the forklift; And
And a heat sensing sensor for sensing heat emitted from an obstacle in a predetermined safety distance from the forklift.
The method according to claim 1,
And an alarm signal output unit for outputting an alarm of the forklift,
Wherein the alarm signal output unit is a speaker for outputting an audio signal or a light emission lamp that is turned on according to a set order.
KR1020130130465A 2013-10-30 2013-10-30 Forklift truck alram and stop control system by measuring distance of obstacle KR20150049650A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107585221A (en) * 2017-10-09 2018-01-16 大连艾欧信息技术有限公司 The automated steering control method and intelligent steering system of unmanned distribution trolley
WO2018021643A1 (en) * 2016-07-27 2018-02-01 대모 엔지니어링 주식회사 Method for monitoring hydraulic hammer, and system performing same
KR20190023068A (en) * 2016-06-24 2019-03-07 크라운 이큅먼트 코포레이션 Electronic badge as a talking marker
KR102019738B1 (en) * 2018-03-28 2019-09-10 노용규 Material input apparatus for forklift
KR20210063004A (en) * 2019-11-22 2021-06-01 주식회사 에프아이시스 Accident Prevention System Using Deep Learning
US11222251B2 (en) 2016-06-24 2022-01-11 Crown Equipment Corporation Adjusting control of an industrial vehicle based on an electronic badge
US11301738B2 (en) 2016-06-24 2022-04-12 Crown Equipment Corporation Industrial vehicle control based upon zones
KR200495397Y1 (en) * 2022-01-21 2022-05-13 우영정보통신주식회사 Safty alarm apparatus for color cone

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190023068A (en) * 2016-06-24 2019-03-07 크라운 이큅먼트 코포레이션 Electronic badge as a talking marker
US11222251B2 (en) 2016-06-24 2022-01-11 Crown Equipment Corporation Adjusting control of an industrial vehicle based on an electronic badge
US11301738B2 (en) 2016-06-24 2022-04-12 Crown Equipment Corporation Industrial vehicle control based upon zones
WO2018021643A1 (en) * 2016-07-27 2018-02-01 대모 엔지니어링 주식회사 Method for monitoring hydraulic hammer, and system performing same
CN107585221A (en) * 2017-10-09 2018-01-16 大连艾欧信息技术有限公司 The automated steering control method and intelligent steering system of unmanned distribution trolley
KR102019738B1 (en) * 2018-03-28 2019-09-10 노용규 Material input apparatus for forklift
KR20210063004A (en) * 2019-11-22 2021-06-01 주식회사 에프아이시스 Accident Prevention System Using Deep Learning
KR200495397Y1 (en) * 2022-01-21 2022-05-13 우영정보통신주식회사 Safty alarm apparatus for color cone

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