CN210914849U

CN210914849U - Elevator car position and running speed measuring device

Info

Publication number: CN210914849U
Application number: CN201921628018.0U
Authority: CN
Inventors: 寿鹏凌; 支佳琳; 张靖
Original assignee: Marohn ThyssenKrupp Elevator Co Ltd
Current assignee: Marohn ThyssenKrupp Elevator Co Ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-07-03
Anticipated expiration: 2029-09-27

Abstract

The utility model discloses an elevator car position and functioning speed measuring device, including pulse transmitter, pulse receiver, the decoder, conduction pole and host computer, pulse transmitter transmission pulse signal, pulse signal transmits to the decoder along a guide rail downwards, pulse signal transmits to the decoder back through the conduction pole, the decoder carries out the carrier wave sign to pulse signal and further transmits to another side guide rail through the conduction pole in, pulse signal after the carrier wave sign transmits to pulse receiver along another guide rail in, pulse receiver transmits received pulse signal to the host computer, the host computer calculates elevator car's position and functioning speed according to received pulse signal. The utility model discloses do not receive elevator floor height restriction when measuring elevator car's position and functioning speed, can not increase the cost because of the increase of elevator floor.

Description

Elevator car position and running speed measuring device

Technical Field

The utility model belongs to the technical field of the elevator technique and specifically relates to an elevator car position and functioning speed measuring device is related to.

Background

An elevator is a vertical elevator powered by an electric motor and equipped with a box-like car for carrying people or cargo in a multi-story building. The position and the running speed of the elevator car need to be monitored in the running process of the elevator so as to know the running condition of the elevator. In the prior art, devices such as a magnetic grid ruler and the like are installed on an elevator to measure the position and the running speed of an elevator car, for example, chinese patent CN 103253574 a discloses an elevator car speed and position monitoring system, which comprises an elevator control panel and a magnetic grid ruler, wherein the magnetic grid ruler comprises a grid ruler, a magnetic grid sensor and a control box; the grid ruler is vertically hung in the elevator shaft from the top of the shaft, the magnetic grid sensor is fixed on the outer wall of the elevator car and is connected to an elevator control panel through a control box, the collected first speed value and the collected first position value of the elevator car are sent to the elevator control panel through the control box, and the elevator control panel monitors the running speed and the position of the elevator car through the first speed value and the first position value. Although the position and the running speed of the elevator car can be monitored, the grid ruler needs to be installed in the elevator shaft, the length of the grid ruler is longer and longer along with the higher floors of the elevator, and finally the cost is higher and higher.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's defect, provide an elevator car position and functioning speed measuring device, do not receive elevator floor height restriction, can not increase the cost because of the increase of elevator floor.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an elevator car position and functioning speed measuring device, includes the pulse transmitter who is used for transmitting pulse signal, is used for carrying out the decoder of carrier wave sign to pulse signal, is used for transmitting pulse signal's conduction pole, is used for receiving the pulse receiver of pulse signal behind the carrier wave sign and is used for calculating elevator car position and functioning speed's host computer according to the pulse signal behind the carrier wave sign, pulse transmitter locates the top of an interior guide rail of elevator well, pulse receiver locates the bottom of another guide rail in the elevator well, just pulse transmitter and pulse receiver all are connected with host computer communication, on the elevator car is located to the conduction pole, just the both ends of conduction pole contact with two guide rails in the elevator well respectively, the decoder is located on the elevator car, and with conduction pole looks communication connection.

Preferably, the upper computer is an elevator control cabinet.

Preferably, the conductive rod is provided at the top of the elevator car.

Preferably, the decoder is provided on the top of the elevator car.

Preferably, the pulse transmitter and the pulse receiver are connected with the upper computer in a communication mode in a wired or wireless mode.

The utility model has the advantages that:

the utility model discloses can measure elevator car's position and functioning speed to do not receive the restriction of elevator floor height, and do not increase the cost because of the increase of floor.

Drawings

Fig. 1 is a schematic diagram of the structure of the present invention;

fig. 2 is a schematic diagram of the carrier identification of the present invention.

Reference numerals: 10. the elevator comprises a pulse transmitter, 20, a decoder, 30, a pulse receiver, 40, a conducting rod, 50, an upper computer, a left guide rail, b, an elevator car, c and a right guide rail.

Detailed Description

The technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention.

Referring to fig. 1 and 2, the device for measuring the position and the operating speed of the elevator car b disclosed in the present invention comprises a pulse transmitter 10, a decoder 20, a pulse receiver 30, a conducting rod 40 and an upper computer 50, wherein the pulse transmitter 10 is disposed at the top of a left guide rail a in an elevator shaft, and is in communication connection with the upper computer 50 for transmitting a pulse signal, and the pulse signal can be transmitted along the left guide rail a; the decoder 20 is arranged on the elevator car b and is used for carrying out carrier identification on the pulse signals, namely carrying out carrier identification in pulse waveforms as shown in the figure; the pulse receiver 30 is arranged at the bottom of the right guide rail c in the elevator shaft, is in communication connection with the upper computer 50, and is used for receiving the pulse signal marked by the carrier wave and transmitting the pulse signal to the upper computer 50; the conducting rod 40 is installed on the elevator car b, one end of the conducting rod is contacted with the left guide rail a, the other end of the conducting rod is contacted with the right guide rail c, and the conducting rod 40 is in communication connection with the decoder 20 and is used for transmitting the pulse signal in the left guide rail a into the decoder 20 and further transmitting the pulse signal after the carrier identification into the right guide rail c; the upper computer 50 is used for calculating the position and the running speed of the elevator car b according to the pulse signals marked by the carrier wave.

In this embodiment, the upper computer 50 is preferably an elevator control cabinet, and the conducting rod 40 and the decoder 20 are preferably disposed on the top of the elevator car b.

Further, the pulse transmitter 10 and the pulse receiver 30 may be connected to the upper computer 50 in a wireless or wired communication manner.

Elevator car b position and functioning speed measuring device's theory of operation as follows:

the upper computer 50 sends an instruction to the pulse emitter 10, the pulse emitter 10 emits a pulse signal after receiving the instruction, and the pulse signal is transmitted downwards along the left guide rail a; after the pulse signal is transmitted to the decoder 20 through the conducting rod 40, the decoder 20 performs carrier identification on the pulse signal and transmits the pulse signal subjected to the carrier identification to the right guide rail c through the conducting rod 40; the pulse signal identified by the carrier is transmitted to the pulse receiver 30 along the right guide rail c, the pulse receiver 30 further transmits the received pulse signal to the upper computer 50, and the upper computer 50 obtains an interval Δ S of two pulse waveforms according to the received pulse signal_n-S_n-1And the interval time delta t of two pulse signals is t_n-t_n-1Further, the position and the running speed of the elevator car b are calculated according to the Δ S and the Δ t.

The technical contents and features of the present invention have been disclosed as above, however, those skilled in the art can still make various substitutions and modifications based on the teaching and disclosure of the present invention without departing from the spirit of the present invention, therefore, the protection scope of the present invention should not be limited to the contents disclosed in the embodiments, but should include various substitutions and modifications without departing from the present invention, and should be covered by the claims of the present patent application.

Claims

1. A device for measuring the position and running speed of an elevator car is characterized by comprising a pulse transmitter for transmitting a pulse signal, a decoder for carrying out carrier identification on the pulse signal, a conducting rod for transmitting the pulse signal, a pulse receiver for receiving the pulse signal subjected to the carrier identification, and an upper computer for calculating the position and running speed of the elevator car according to the pulse signal subjected to the carrier identification, the pulse emitter is arranged at the top of one guide rail in the elevator shaft, the pulse receiver is arranged at the bottom of the other guide rail in the elevator shaft, the pulse transmitter and the pulse receiver are in communication connection with an upper computer, the conduction rod is arranged on the elevator car, and the both ends of conduction pole respectively with two guide rail contact in the elevator well, the decoder is located on the elevator car, and with conduction pole looks communication connection.

2. The elevator car position and travel speed measurement device of claim 1, wherein the upper computer is an elevator control cabinet.

3. The elevator car position and travel speed measurement device of claim 1, wherein the conductive bar is disposed on the top of the elevator car.

4. The elevator car position and travel speed measurement device of claim 1, wherein the decoder is located on the top of the elevator car.

5. The elevator car position and travel speed measurement device of claim 1, wherein the pulse transmitter and pulse receiver are communicatively coupled to the host computer by wire or wirelessly.