KR102682906B1 - Elevator car position detection system - Google Patents

Abstract

The present invention relates to a position detection system for an elevator car.
According to an embodiment of the present invention, the position of the elevator car in the hoistway is detected by a BLE module installed in the upper and lower parts of the hoistway and a BLE module installed in the elevator car, and the speed of the elevator car is detected. It has the effect of detecting whether or not

Description

Elevator car position detection system {ELEVATOR CAR POSITION DETECTION SYSTEM}

The present invention relates to a position detection system for an elevator car.

An elevator (elevator) is a device that lifts passengers or cargo along a hoistway formed along the vertical direction of a building. A typical elevator includes an elevator car placed within the hoistway to enable elevation, and a counterweight connected to the elevator car by a wire rope. The so-called rope type elevator, which is equipped with a traction machine on the upper side of the hoistway that is in frictional contact with a wire rope and rotates forward and backward to drive the elevator car and the counterweight to raise and lower, is widely used.

Meanwhile, safety issues are very important, especially in the case of elevators that lift and lift passengers.

Various technologies are being applied to ensure the safety of elevators, and among these, technology to detect whether the elevator car is speeding is also an important safety technology.

In particular, there is a need to develop technology to accurately detect the position of the elevator car within the hoistway as a method of detecting whether the elevator car is speeding.

Meanwhile, technology for detecting the speed of an elevator car by using a sensor module that changes the direction of the magnetomotive force at a certain moving distance when the elevator car moves is disclosed in Korean Patent No. 10-2130222, 'Speed detection device for linear motor type elevator'. It is introduced in

Accordingly, the present invention was developed in the above-mentioned background, and detects the position of the elevator car in the hoistway by using a BLE module installed in the upper and lower parts of the hoistway and a BLE module installed in the elevator car, and detects the position of the elevator car in the elevator car. The purpose is to provide a position detection system for an elevator car that can detect whether the car is speeding.

The object of the present invention is not limited here, and other objects not mentioned will be clearly understood by those skilled in the art from the description below.

In order to achieve this purpose, an embodiment of the present invention includes a first BLE module installed at the lower part of the hoistway where the elevator car operates; A second BLE module installed at the top of the hoistway; A third BLE module installed in the elevator car; And a first distance signal between the first BLE module and the third BLE module or a second distance signal between the second BLE module and the third BLE module. A server that receives at least one of the distance signals and detects the position of the elevator car in the hoistway from the first distance signal or the second distance signal. .

In addition, another embodiment of the present invention includes a first BLE module installed at the lower part of the hoistway where the elevator car operates; A second BLE module installed at the top of the hoistway; A third BLE module installed between the lower part of the hoistway where the first BLE module is installed and the upper part where the second BLE module is installed; It is installed in the elevator car, and receives a first distance signal (DS1) and a second distance signal from the first BLE module, the second BLE module, and the third BLE module, respectively. (DS2) and a signal transmission/reception module that receives the third distance signal (DS3); And a server that detects the location of the elevator car in the hoistway by receiving the first distance signal (DS1), the second distance signal (DS2), and the third distance signal (DS3) from the signal transmission/reception module. A position detection system for an elevator car is provided.

In addition, another embodiment of the present invention includes a first BLE module installed at the lower part of the hoistway where the elevator car operates; A second BLE module installed at the top of the hoistway; A signal transmission/reception module installed in the elevator car and receiving a first distance signal (DS1) and a second distance signal (DS2) from the first BLE module and the second BLE module, respectively; and a server that receives the first distance signal (DS1) and the second distance signal (DS2) from the signal transmission/reception module and detects the location of the elevator car in the hoistway. A detection system is provided.

According to an embodiment of the present invention, the position of the elevator car in the hoistway is detected by a BLE module installed in the upper and lower parts of the hoistway and a BLE module installed in the elevator car, and the speed of the elevator car is detected. It has the effect of detecting whether or not

Figure 1 is a diagram showing a position detection system for an elevator car according to an embodiment of the present invention.
Figure 2 is a diagram showing a position detection system for an elevator car according to another embodiment of the present invention.
FIG. 3 is a diagram showing an example of detecting the position of an elevator car in the hoistway using trilateration in FIG. 2.
Figure 4 is a diagram showing a position detection system for an elevator car according to another embodiment of the present invention.
Figure 5 is a diagram showing an example of detecting the position of the elevator car in the hoistway in Figure 4.

Hereinafter, some embodiments of the present invention will be described in detail through illustrative drawings. When adding reference numerals to components in each drawing, it should be noted that identical components are given the same reference numerals as much as possible even if they are shown in different drawings. Additionally, in describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description will be omitted.

Additionally, when describing the components of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only used to distinguish the component from other components, and the essence, order, or order of the component is not limited by the term. When a component is described as being “connected,” “coupled,” or “connected” to another component, that component may be directly connected or connected to that other component, but there is another component between each component. It will be understood that elements may be “connected,” “combined,” or “connected.”

Figure 1 is a diagram showing a position detection system for an elevator car according to an embodiment of the present invention. Figure 2 is a diagram showing a position detection system for an elevator car according to another embodiment of the present invention. FIG. 3 is a diagram showing an example of detecting the position of an elevator car in the hoistway using trilateration in FIG. 2. Figure 4 is a diagram showing a position detection system for an elevator car according to another embodiment of the present invention. Figure 5 is a diagram showing an example of detecting the position of the elevator car in the hoistway in Figure 4.

As shown in these drawings, the elevator car position detection system 100 according to an embodiment of the present invention is a first BLE installed at the lower part of the hoistway 103 in which the elevator car 101 runs. ) module (105); A second BLE module (107) installed at the upper part of the hoistway (103); A third BLE module (109) installed in the elevator car (101); and a first distance signal between the first BLE module 105 and the third BLE module 109 or the second BLE module 107 and the third BLE module. A server 111 that receives at least one of the second distance signals between (109) and detects the position of the elevator car 101 in the hoistway 103 from the first distance signal or the second distance signal. It is characterized by

The BLE (Bluetooth Low Energy) module is a module that reduces power consumption using low-power Bluetooth and periodically transmits signals to convey location information.

The first distance signal from the bottom of the hoistway 103 to the elevator car 101 is read by the first BLE module 105 and the third BLE module 109, and the second BLE is The second distance signal from the upper part of the hoistway 103 to the elevator car 101 is read by the (BLE) module 107 and the third BLE module 109.

The server 111 detects the position of the elevator car 101 in the hoistway 103 from the first distance signal or the second distance signal.

Of course, the server 111 can calculate the speed of the elevator car 101 using the amount of change in the first distance signal per unit time or the amount of change in the second distance signal per unit time.

For example, the first BLE module, the second BLE module, and the third BLE module may each include a beacon and a receiver.

Meanwhile, the elevator car position detection system 200 according to another embodiment of the present invention includes a first BLE module 205 installed at the lower part of the hoistway 203 where the elevator car 201 runs; A second BLE module (207) installed at the upper part of the hoistway (203); The third BLE module (209) is installed between the lower part of the hoistway (203) where the first BLE module (205) is installed and the upper part where the second BLE module (207) is installed. ); It is installed in the elevator car 201 and receives a first distance signal from the first BLE module 205, the second BLE module 207, and the third BLE module 209, respectively. A signal transmission/reception module 211 that receives (DS1), a second distance signal (DS2), and a third distance signal (DS3); and a server that detects the position of the elevator car 201 in the hoistway 203 by receiving the first distance signal (DS1), the second distance signal (DS2), and the third distance signal (DS3) from the signal transmission/reception module 211. It is characterized by including (213);

In the elevator car position detection system 200 according to another embodiment of the present invention, the first BLE module 205, the second BLE module 207, and the third BLE Each module 209 may be provided as a beacon.

The first BLE module 205 is installed at the lower part of the hoistway 203 where the elevator car 201 runs.

The first BLE module 205 may be coupled and installed at the lower part of the hoistway 203 using a fixing member such as a bolt or an adhesive member.

The second BLE module 207 is installed at the upper part of the hoistway 203 where the elevator car 201 runs.

The second BLE module 207 may be coupled and installed on the upper part of the hoistway 203 using a fixing member such as a bolt or an adhesive member.

The third BLE module 209 is a lower part of the hoistway 203 where the elevator car 201 is operated, where the first BLE module 205 is installed, and the second BLE module. (207) is installed between the upper parts.

The third BLE module 209 is connected to the lower part of the hoistway 203 where the first BLE module 205 is installed and the second BLE by fixing members such as bolts or adhesive members. It can be installed between the upper parts where the module 207 is installed.

The signal transmission/reception module 211 is installed in the elevator car 201.

The signal transmission and reception module 211 receives a first distance signal from the first BLE module 205, the second BLE module 207 and the third BLE module 209, respectively. DS1), the second distance signal (DS2), and the third distance signal (DS3) are received.

Meanwhile, the above-described first BLE module 205, second BLE module 207, and third BLE module 209 may not be arranged on the coaxial line.

Through this, the server 213, which will be described later, detects the position of the elevator car 201 in the hoistway 203 by trilateration, which will be described later.

The server 213 receives the first distance signal (DS1), the second distance signal (DS2), and the third distance signal (DS3) from the signal transmission/reception module 211 to control the elevator car 201 in the hoistway 203. Detect location.

At this time, if the above-described first BLE module 205, second BLE module 207, and third BLE module 209 are not placed on the coaxial line, the server (213) detects the position of the elevator car 201 in the hoistway 203 by trilateration using the first distance signal (DS1), the second distance signal (DS2), and the third distance signal (DS3). .

Figure 3 shows the signal transmission and reception module when the first BLE module 205, the second BLE module 207, and the third BLE module 209 are not placed on the coaxial line. An example in which (211) detects the position of the elevator car 201 in the hoistway 203 by trilateration using the first distance signal (DS1), the second distance signal (DS2), and the third distance signal (DS3). It shows.

Meanwhile, the elevator car position detection system 400 according to another embodiment of the present invention includes a first BLE module 405 installed at the lower part of the hoistway 403 where the elevator car 401 runs. ; A second BLE module 407 installed at the upper part of the hoistway 403; It is installed in the elevator car 401 and receives a first distance signal (DS1) and a second distance signal (DS2) from the first BLE module 405 and the second BLE module 407, respectively. A receiving signal transmission/reception module (409); And a server 411 that receives the first distance signal (DS1) and the second distance signal (DS2) from the signal transmission/reception module 409 and detects the position of the elevator car 401 in the hoistway 403. It is characterized by

In the elevator car position detection system 400 according to another embodiment of the present invention, the first BLE module 405 and the second BLE module 407 each use beacons. can be provided.

The first BLE module 405 is installed at the lower part of the hoistway 403 where the elevator car 401 runs.

The first BLE module 405 may be coupled and installed at the lower part of the hoistway 403 using a fixing member such as a bolt or an adhesive member.

The second BLE module 407 is installed at the upper part of the hoistway 403 where the elevator car 401 runs.

The second BLE module 407 may be coupled and installed on the upper part of the hoistway 403 using a fixing member such as a bolt or an adhesive member.

Here, at least one of the first BLE module 405 and the second BLE module 407 may be equipped with a directional antenna.

A directional antenna is an antenna that strongly radiates radio waves only in a specific direction or has the characteristic of increasing sensitivity to radio waves from that direction.

The signal transmission/reception module 409 is installed in the elevator car 401.

The signal transmission/reception module 409 receives the first distance signal DS1 and the second distance signal DS2 from the first BLE module 405 and the second BLE module 407, respectively. do.

Meanwhile, the first BLE module 405, the second BLE module 407, and the signal transmission/reception module 409 may be arranged on a coaxial line.

The server 411 receives the first distance signal DS1 and the second distance signal DS2 from the signal transmission/reception module 409 and detects the position of the elevator car 401 in the hoistway 403.

In more detail, the server 411 receives the first distance signal DS1 and the second distance signal DS2 from the signal transmission and reception module 409, and according to a pre-stored database, the first distance signal DS1 ) and/or the distance value corresponding to the signal strength of the second distance signal DS2 is determined to detect the position of the elevator car 401 in the hoistway 403.

Meanwhile, when the server 411 exceeds the preset error range as a result of adding up the distance value corresponding to the first distance signal DS1 and the distance value corresponding to the second distance signal DS2, the first BL It can be determined that the (BLE) module 405 or the second BLE module 407 is causing a breakdown or malfunction, and an alarm signal can be transmitted to the manager's management terminal.

As described above, according to an embodiment of the present invention, the position of the elevator car in the hoistway is detected by the BLE module installed in the upper and lower parts of the hoistway and the BLE module installed in the elevator car. And, it has the effect of detecting whether the elevator car is speeding.

In the above, even though all the components constituting the embodiment of the present invention have been described as being combined or operated in combination, the present invention is not necessarily limited to this embodiment. That is, as long as it is within the scope of the purpose of the present invention, all of the components may be operated by selectively combining one or more of them.

The above description is merely an illustrative explanation of the technical idea of the present invention, and various modifications and variations will be possible to those skilled in the art without departing from the essential characteristics of the present invention. Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but are for illustrative purposes, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted in accordance with the claims below, and all technical ideas within the equivalent scope should be construed as being included in the scope of rights of the present invention.

100: Elevator car position detection system
101: Elevator car
103: hoistway
105: 1st BLE module
107: 2nd BLE module
109: 3rd BLE module
111: server
200: Elevator car position detection system
201: Elevator car
203: hoistway
205: 1st BLE module
207: 2nd BLE module
209: 3rd BLE module
211: Signal transmission/reception module
213: server
400: Elevator car position detection system
401: Elevator car
403: hoistway
405: 1st BLE module
407: 2nd BLE module
409: Signal transmission/reception module
411: server

Claims (7)

delete delete delete delete A first BLE module installed at the bottom of the hoistway where the elevator car operates;
A second BLE module installed at the top of the hoistway;
A signal transmission/reception module installed in the elevator car and receiving a first distance signal (DS1) and a second distance signal (DS2) from the first BLE module and the second BLE module, respectively; and
A server that receives the first distance signal (DS1) and the second distance signal (DS2) from the signal transmission/reception module and detects the location of the elevator car in the hoistway.
When the server exceeds a preset error range as a result of adding up the distance value corresponding to the first distance signal DS1 and the distance value corresponding to the second distance signal DS2, the first BL ( A position detection system for an elevator car, characterized in that it determines that the BLE) module or the second BLE module is malfunctioning or malfunctioning and transmits an alarm signal to the manager's management terminal.
According to claim 5,
The position detection system of the elevator car, wherein the first BLE module, the second BLE module, and the signal transmission/reception module are arranged on a coaxial line.
According to claim 6,
A position detection system for an elevator car, wherein at least one of the first BLE module and the second BLE module has a directional antenna.

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