JPH06247647A - Automatic announcing device - Google Patents

Abstract

PURPOSE:To provide an automatic announcing device requiring no wiring by calculating the position of a car based on the output of an acceleration sensor, and announcing the stop floor by sound when the car is stopped. CONSTITUTION:An acceleration sensor A1 detecting the acceleration in the vertical direction is provided at a proper position of a car, and the sensor signal is integrated by an integrator U1 to obtain the speed information. The speed information is integrated by an integrator U2 to obtain the distance information. The output signal of the integrator U2 is inputted to a microcomputer U4 via an A/D converter U3, and the speed information and the distance information are compared with the initially set distance information when an elevator is stopped to judge the stop floor. The address of a fixed recording/ reproducing device U5 is selected from this judged result, and such sound as 'first floor', for example, is announced from a speaker SP1. Integrators U6, U7 are provided for the drift correction of the integrators U1, U2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention mainly relates to automatic announcement within an elevator, but it can also be used to automatically announce the next station name within a train.

[0002]

2. Description of the Related Art It is considered that some recent elevators have already been provided with an automatic announcement by voice, but no wiring work is required for an existing elevator and no device which can be installed later is found.

[0003]

At present, it is common for elevators to display the floors numerically, but this method is inconvenient for many people when they get in and it is inconvenient for people with visual disabilities. is there. Therefore, it seems that there is a device that automatically announces by voice recently, but it is probably not easy to install because new wiring work is required.

[0004]

First of all, in order to facilitate the installation, no wiring is required and it must be easily attached with an adhesive tape. For that purpose, a power supply is built in and the distance information of each floor must be calculated and obtained by itself. A fairly complicated process such as equipping an acceleration sensor and performing integration is required to obtain distance information.

[0005]

In FIG. 1, the acceleration sensor A1 detects the vertical acceleration and enters the integrator U1. U1 provides speed information. The signal enters the integrator U2 and U2
The distance information can be obtained from the output of. U3 is converted from analog to digital and processed by computer U4.
At the same time, the computer U4 receives the output of U1 (also the speed information). The computer selects the address of the solid-state recording / playback device U5 by comparing it with the distance information that is initially set when the elevator stops based on the speed and distance information, and outputs an audio signal such as "1st floor" with the speaker SP1. generate. In this way, the position of itself is calculated and a voice is generated.

Further, when a deviation between the initially set distance information and the calculated value frequently occurs, the computer replaces the initially set value and updates the data. This is to automatically correct when the accelerometer or amplifier changes with time.

The integrator U6 also corrects the drift of the integrator U1 in the long term. Next, when the speed of the integrator U7 is zero, the switch S1 is switched to correct the drift of the integrator U2 for a long term. Such a simple correction method is possible because the moving time of the elevator is relatively short and the head difference is as short as about 100 m.

Since this apparatus needs to operate with a battery (primary battery), there is a risk that the battery will eventually be exhausted and its data will be lost. Even if the data is lost, the battery can be replaced and the distance data after that can be accumulated, calculated, and automatically restored.

[0009]

As described above, the present invention can be easily installed in an elevator with an adhesive tape or the like, and for each floor, information about the floor, for example, "On the roof" or in the case of a department store, "Women's clothing store It is on the 2nd floor. Also, in the case of an office building, by automatically making an announcement such as "It is the 3rd floor sales department", the information can be obtained by hearing and the convenience is increased. Operation is possible to some extent.

[Brief description of drawings]

FIG. 1 is an A1 acceleration sensor U1. U2. U6. U7. Integrator U3 Analog-to-digital converter U4 Microcomputer U5 Solid-state audio recording / playback device SP1 Speaker

Claims (3)

[Claims] 1. This device mainly relates to an automatic announcement device inside an elevator, which does not require wiring work and automatically announces, for example, "it is the first floor" or "it is the rooftop". To eliminate the need for wiring, the accelerometer always calculates its own position, and when stopped, the current position is automatically pronounced. In other words, an automatic announcement device consisting of an acceleration sensor and its calculation circuit, a solid-state recording / playback circuit, a speaker, a computer circuit, and a battery. 2. The acceleration sensor and its amplifier change with time and temperature over time, so that self-correction is automatically added and at the same time the distance data of each floor is updated at any time to obtain more accurate altitude information. The automatic announcement device as set forth in claim 1. 3. The sound information of the solid-state recording / reproducing circuit is not easily erased in this device, but the distance data of each floor may be erased at the same time as the loss of power. In such a case, by newly replacing the power supply, the computer circuit automatically creates new data based on the subsequent distance data and returns to the original state. That is, the automatic announcement device according to claim 1 having a learning function.