A lift car calling system and a portable information terminal of an elevator

Abstract

The invention provides a lift car calling system and a portable information terminal of an elevator. A technique of simplifying lift car calling registration operation of an elevator and inhibiting needless calling registration is provided. The portable information terminal (2), carried by a user (3) of the elevator (1) receives radio waves determining whether a gangway port of a specific layer comes near or not, detects the accelerated speeds of orthogonal three axes according to the movement state of the elevator and records sequential variations of the accelerated speed of each axis. Moving history information in which the sequential variations of the accelerated speed of each axis are corresponding to wave intensity measured during movement of the user (3) in the specific layer in order to take the elevator from the gangway port is stored in the portable information terminal (2). The intensity of the radio waves received by the portable information terminal (2) and sequential variations detected and recorded in real time of the accelerated speed of each axis are compared with the moving history information, and whether a calling registration signal is needed and generated is determined according to the comparison result.

Description

Technical field [0001] The present invention relates to an elevator car call system and a portable information terminal that can automatically register a car call to an elevator of a specific floor. Background technique [0002] Elevators such as elevators are equipped with call buttons for calling the car at the boarding gates of each floor. Generally, the user presses the call button after arriving at the boarding gate to register the call, but for example, the user can hold the item with both hands. In the proposal of automatic call registration, there has been known a method in which a user has a wireless transmitting device that periodically transmits radio waves and receives it through a receiving device installed near the boarding gate. [0003] However, in the case of these methods, even if it is used from another floor, when the floor is down, that is, when the user finishes using the elevator, it is possible to register a so-called registration unnecessary call. Therefor...

AI Technical Summary

Problems solved by technology

[0004] However, the intensity of radio waves inherently has a characteristic of large fluctuations.

Therefore, as in the technology described in the above-mentioned Patent Document 1, in the case of judging the distance between the user and the boarding door only by the intensity of radio waves, it is difficult to accurately judge whether the user is approaching the boarding door, and as a result, unnecessary The problem with the registration of the call

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