CN106219347A - A kind of detection apparatus and method of elevator malfunction fault - Google Patents

Abstract

The invention discloses a detection device and method for an elevator trapped fault. The device includes a current sensor, a rotary encoder, an alarm button, an acquisition and identification circuit board, and an alarm transmission unit. The acquisition and identification circuit board is connected with the alarm transmission unit respectively The current sensor, the rotary encoder, the alarm button, and the alarm transmission unit are connected; the acquisition and identification circuit board is used to calculate and process data information, and to detect the current of the main circuit of the elevator detected by the current sensor, the rotation The angular displacement of the traction sheave detected by the encoder and the situation of whether there is an alarm in the car detected by the alarm button are comprehensively judged; the current sensor is used to detect the current of the main circuit of the elevator; the rotary encoder is used to detect the traction The angular displacement of the wheel; the alarm button is used to detect whether there is someone in the car to alarm; the alarm transmission unit is used to transmit the alarm information to the relevant staff when a fault occurs. The design is more rationalized.

Description

A detection device and method for an elevator trapped fault

technical field

The invention relates to the technical field of elevators, in particular to a detection device and method for an elevator trapped fault.

Background technique

Elevator is a kind of vertical elevator powered by electric motor, equipped with box-shaped gondola, which is used for multi-storey buildings to take people or carry goods. As a means of transportation in the vertical direction, elevators have become important construction equipment in high-rise buildings and public places and are indispensable. With the development of computer technology, automation technology and power electronics technology, modern elevators have become typical mechatronic products.

With the development of the economy and the growth of the population, there are more and more high-rise buildings in modern cities, and elevators are becoming more and more popular in people's life and work. When the elevator fails, people's life and work will be greatly affected. troubled.

In the traditional elevator, the alarm button is installed on the control box in the car. Once the passenger is trapped, the alarm can be triggered by triggering the button. This detection method is not reasonable and accurate. When the bell button is pressed, it will be assumed that passengers are trapped in the elevator. This shows that there are still some deficiencies in the prior art.

Contents of the invention

In view of this, the purpose of the present invention is to provide a detection device and method for an elevator trapped fault, which can avoid detection errors caused by misoperation and make the design more rational.

The present invention solves the above problems by the following technical means:

A detection device for an elevator trapped fault, comprising a current sensor, a rotary encoder, an alarm button, an acquisition and identification circuit board, and an alarm transmission unit, the acquisition and identification circuit board is connected to the current sensor, the rotary encoder device, the alarm button, and the alarm transmission unit are connected;

The acquisition and identification circuit board is used for calculating and processing data information, and for the current of the main circuit of the elevator detected by the current sensor, the angular displacement of the traction sheave detected by the rotary encoder, and whether there is someone in the car detected by the alarm button. make comprehensive judgments;

The current sensor is used to detect the current of the elevator main circuit;

The rotary encoder is used to detect the angular displacement of the traction sheave;

The alarm bell button is used to detect whether there is someone in the car to alarm;

The alarm transmission unit is used for transmitting alarm information to relevant staff when a failure occurs.

Preferably, the alarm transmission unit includes a wireless alarm and a language announcer, the wireless alarm is used to provide alarm voices to relevant staff, and the language announcer is used to broadcast soothing voices to trapped persons.

Preferably, the alarm button and the language announcer are arranged in the car.

Preferably, the alarm button and the language announcer are arranged in an operation box inside the car.

Preferably, the wireless alarm is set in the office of relevant staff.

A method for detecting a fault in an elevator, comprising the steps of:

S1. Obtain the real-time current of the elevator main circuit collected by the current sensor, the real-time angular displacement of the traction sheave collected by the rotary encoder, and the real-time alarm operation information of the personnel in the car collected by the alarm button;

S2. Judging whether the traction machine is stopped by real-time current, and judging whether the elevator leveling position is in the normal leveling position by real-time angular displacement;

S3. Judging the action of the alarm bell button, if the alarm bell button is pressed for a certain amount of time per unit time, it is determined that someone in the elevator triggers the alarm bell to request rescue;

S4. When the car is in a non-leveling position and someone in the car triggers the alarm bell to request rescue, it will send an alarm for trapped people outside the door area;

S5. When the car is at the leveling position and someone in the car triggers the alarm bell to request rescue, an alarm is sent to the trapped person in the door area.

Preferably, in step S2, when the real-time current is in the range of (I _S -I _E ) - (I _S +I _E ), it is judged that the traction machine stops, where I _S is the recorded current characteristic of the elevator when it stops Value, I _E is the set deviation.

Preferably, in step S2, when the real-time angular displacement is in the range of (W _N -W _E )-(W _N +W _E ), it is judged that the leveling position of the elevator is in the normal leveling position, where W _N is the recorded The angular displacement of the Nth floor at the normal leveling position, W _E is the set deviation.

Preferably, if the alarm button is pressed for a total of 15 seconds within 1 minute, it is determined that someone in the elevator triggers the alarm to request rescue.

The detection device and method for an elevator trapped fault of the present invention can avoid detection errors due to misoperation, and the design is more rationalized.

Description of drawings

Fig. 1 is the structural schematic diagram of the detecting device of elevator trapped fault of the present invention;

Fig. 2 is a structural schematic diagram of the alarm transmission unit of the present invention;

Fig. 3 is a flow chart of the detection method of the elevator trapped fault of the detection device of the present invention.

detailed description

In order to make the above objects, features and advantages of the present invention more comprehensible, the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be pointed out that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all those skilled in the art can obtain all without creative work. Other embodiments all belong to the protection scope of the present invention.

Elevator is a kind of vertical elevator powered by electric motor, equipped with box-shaped gondola, which is used for multi-storey buildings to take people or carry goods. As a means of transportation in the vertical direction, elevators have become important construction equipment in high-rise buildings and public places and are indispensable. With the development of computer technology, automation technology and power electronics technology, modern elevators have become typical mechatronic products.

As shown in Fig. 1, the detection device of the elevator trapping fault of the present invention comprises a current sensor, a rotary encoder, an alarm button, an acquisition and identification circuit board and an alarm transmission unit, and the acquisition and identification circuit board is respectively connected to the The current sensor, the rotary encoder, the alarm button, and the alarm transmission unit are connected;

The acquisition and identification circuit board is used for calculating and processing data information, and for the current of the main circuit of the elevator detected by the current sensor, the angular displacement of the traction sheave detected by the rotary encoder, and whether there is someone in the car detected by the alarm button. make comprehensive judgments;

The current sensor is used to detect the current of the elevator main circuit;

The rotary encoder is used to detect the angular displacement of the traction sheave;

The alarm bell button is used to detect whether there is someone in the car to alarm;

The alarm transmission unit is used for transmitting alarm information to relevant staff when a failure occurs.

As shown in Figure 2, preferably, the alarm transmission unit includes a wireless alarm and a language announcer, the wireless alarm is used to provide alarm voices to relevant staff, and the language announcer is used to broadcast soothing voices to trapped persons , to appease the emotions of the trapped people.

Preferably, the alarm button and the language announcer are arranged in the car.

Preferably, the alarm button and the language announcer are arranged in an operation box inside the car.

Preferably, the wireless alarm is set in the office of relevant staff.

As shown in Figure 3, a kind of detection method of elevator trapping fault, comprises the following steps:

S1. Obtain the real-time current of the elevator main circuit collected by the current sensor, the real-time angular displacement of the traction sheave collected by the rotary encoder, and the real-time alarm operation information of the personnel in the car collected by the alarm button;

S2. Judging whether the traction machine is stopped by the real-time current, when the real-time current is in the range of (I _S -I _E )-(I _S +I _E ), it is judged that the traction machine is stopped, where I _S is the recorded elevator stop I _E is the set deviation; judge whether the elevator leveling position is in the normal leveling position by the real-time angular displacement, when the real-time angular displacement is in (W _N -W _E )―(W _N +W _E ) range, then judge that the leveling position of the elevator is in the normal leveling position, wherein W _N is the angular displacement of the recorded Nth floor normal leveling position, and W _E is the deviation of setting;

S3, judging the action of the alarm bell button, if the alarm bell button is pressed for a certain period of time per unit time, it is judged that someone in the elevator triggers the alarm bell to request rescue; preferably, if the alarm bell button is pressed within 1 minute, the cumulative After 15 seconds, it is judged that someone in the elevator triggered the alarm bell to request rescue;

S4. When the car is in a non-leveling position and someone in the car triggers the alarm bell to request rescue, it will send an alarm for trapped people outside the door area;

S5. When the car is at the leveling position and someone in the car triggers the alarm bell to request rescue, an alarm is sent to the trapped person in the door area.

The detection device and method for an elevator trapped fault of the present invention can avoid detection errors due to misoperation, and the design is more rationalized.

The above-mentioned embodiments only express several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but should not be construed as limiting the patent scope of the present invention. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims (9)

1. the detection device of an elevator malfunction fault, it is characterised in that include current sensor, rotary encoder, alarm bell by Button, gather and identification circuit plate and warning transmission unit, described collection and identification circuit plate respectively with described current sensor, institute State rotary encoder, described alarm button, the connection of described warning transmission unit；

Described collection and identification circuit plate are used for calculating process data message, the electricity to the elevator main circuit of current sensor detection The situation that in the car that the angular displacement of traction sheave of stream, rotary encoder detection, alarm button detect, whether someone reports to the police is carried out Comprehensive descision；

Described current sensor is for detecting the electric current of elevator main circuit；

Described rotary encoder is for detecting the angular displacement of traction sheave；

Described alarm button is used for detecting in car whether someone reports to the police；

Described warning transmission unit sends warning message to relevant staff when being used for breaking down.

The detection device of elevator malfunction fault the most according to claim 1, it is characterised in that described warning transmission unit bag Including wireless alarm and device reported in language, described wireless alarm is for providing alarm voice, institute's predicate to relevant staff Speech is reported device and is pacified voice for reporting to indicator of trapped personnel.

The detection device of elevator malfunction fault the most according to claim 2, it is characterised in that described alarm button and described Language is reported device and is arranged in car.

The detection device of elevator malfunction fault the most according to claim 2, it is characterised in that described alarm button and described Language is reported device and is arranged in the control box in car.

The detection device of elevator malfunction fault the most according to claim 2, it is characterised in that described wireless alarm is arranged In the office of relevant staff.

6. the detection method of an elevator malfunction fault, it is characterised in that comprise the steps:

S1, obtain the real-time current of elevator main circuit that current sensor gathers, traction sheave real-time that rotary encoder gathers Angular displacement, alarm button collection real-time car in personnel report to the police operation information；

S2, judged by real-time current whether traction machine stops, judging that whether level position of elevator is just by real-time angular displacement Normal level position；

S3, judge alarm button action, if alarm button was pressed within the unit interval after accumulative certain time, then judge electricity People is had to trigger alarm bell request rescue in ladder；

S4, have people to send outside door district after triggering alarm bell request rescue in car is in non-level position and car to stop terraced oppressive report Alert；

S5, have people to send in door district after triggering alarm bell request rescue in car is in level position and car to stop terraced oppressive report Alert.

The detection method of elevator malfunction fault the most according to claim 6, it is characterised in that in step S2, when the most electric Stream is in (I_S-I_E)―(I_S+I_E) scope time, then judge that traction machine stops, wherein I_SElevator for having recorded stops electric current during ladder Eigenvalue, I_EFor the deviation set.

The detection method of elevator malfunction fault the most according to claim 6, it is characterised in that in step S2, when real-time angle Displacement is in (W_N-W_E)―(W_N+W_E) scope time, then judge level position of elevator at normal level position, wherein W_NFor remembering Angular displacement during the normal level position of n-th layer recorded, W_EFor the deviation set.

The detection method of elevator malfunction fault the most according to claim 6, it is characterised in that if alarm button is at 1 point After being pressed in clock accumulative 15 seconds, then people is had to trigger alarm bell request rescue in judging elevator.