JPS60154166A - Detecting device for stop frequency of running object - Google Patents

Abstract

PURPOSE:To prevent riding past a desired station by deciding on whether a running body is in a run or stop state from the output of an oscillation sensor, and counting the stop frequency with the output of a decision circuit. CONSTITUTION:The number of stations from a departure station to an arrival station is set in a down counter 9 from a terminal 9a and a passenger gets on an electric car at a stop. At this time, a waveform shaping circuit 7 generates no output. As the electric car begins to run, an output more than a specific level is obtained from a piezoelectric element 5 because of oscillations of about 1kHz caused by wheels and the waveform shaping circuit 7 generates an output pulse of about 1kHz to trigger a retriggering circuit 8, whose output is held at ''1''. When the electric car stops at the next station, pulses are ceased and the output of the retriggering circuit 8 goes down to ''0'' to decrease the contents of the down counter 9 by one. Thus, the contents of the down counter 9 attain to 0 at the arrival station and a one-shot circuit 10 generates one pulse to send a signal from an alarm circuit 11, thereby announcing that the electric car arrives at the arrival station by an alarm sound. Consequently, riding past a desired station is prevented through the simple constitution.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Scope of the Invention] The present invention relates to a device for detecting the number of times a running object such as an RI train stops.

[Background of the invention]

In the past, when riding on a train or other vehicle, people often fell asleep or were lost in thought.

[Purpose of the invention]

The present invention is a device for detecting the number of times a moving object such as a train stops, which detects the number of times a moving object such as a train stops using the output of a vibration sensor, thereby detecting, for example, that the object has arrived at a station where it should be disembarked, and which is useful for preventing overboarding. It provides:

〔Example〕

An example in which the present invention is applied to a wristwatch to prevent passengers from riding over a vehicle such as a train will be described.

In FIG. 1, 1 is an oscillator, 2 is a frequency divider, 3 is a motor lawn drive circuit, and the motor hill is a time display pointer (not shown).

) is for advancement. A piezoelectric element 5 is a vibration sensor, and is fixed to the inside of the back cover of a wristwatch with adhesive, for example. The piezoelectric element 5 used has a maximum Q value near about 1KH2. This is to determine whether the tts turtle wheel is running or stopped, and while it is running, an output above a certain level is obtained mainly due to vibrations around IKHz due to the rotation of the wheels. 6 is an amplifier for amplifying the neutral power of the piezoelectric element 5, and 7 is a waveform shaping circuit which takes out only the output above the above-mentioned certain level. 8 is a retrigger circuit, and the retrigger time is set to, for example, 10 ms. Reference numeral 9 represents a presettable down counter for generating a matching number, 10 represents a one-shot circuit, 11 represents an alarm generation circuit, and 12 represents an alarm device.

In the above configuration, first, the familiarity from the boarding station to the alighting station is set in the down counter 9 from the terminal 9a. Therefore,
Get on the train that stops at Noritun Station.

At this time, since the wheels are stationary, only a weak output due to engine vibration is obtained from the piezoelectric element 5, and no output is generated from the waveform shaping circuit 7.

When the train starts moving, the piezoelectric element 5 generates an output of a constant level of 1 or higher due to vibrations around 1 to 2 as the wheels rotate, and the waveform shaping circuit 7 generates an output pulse around UIKH2. This pulse triggers the retrigger circuit 8, and its output is held at 1. When the train stops at the next station, the pulses from the waveform shaping circuit 7 stop, the output of the retrigger circuit 8 becomes zero, and the contents of the down counter 9 count down by one1. Each time the vehicle stops at a station, the contents of the down counter 9 are counted down one by one, and when the vehicle arrives at the station where the vehicle gets off, the contents of the down counter 9 becomes 0 and one pulse is generated from the one-shot circuit 10. This pulse generates an alarm signal from the alarm circuit 11, and an alarm sound is generated to notify that the vehicle has arrived at the alighting station.

FIG. 2 shows that the piezoelectric element 5 is used not only as a vibration sensor, but also as a vibration sensor.
In the same figure, 1 shows an example in which it is also used as an alarm device.
3r1. The drive circuit 14ri switching circuit is a drive circuit for driving the piezoelectric element 5 as a sounding body, and selectively operates either the drive circuit 13 or the amplifier 6. In the above configuration, when no pulse is generated from the one-shot circuit 10, the amplifier 6 is operated by the output of the switching circuit 13, and the piezoelectric element 5 is vibrated. Functions as a sensor. Therefore, the number of stops is counted in the same manner as above, and when a pulse is generated from the one-shot circuit 10 at the station where you get off, the drive circuit 13 is operated by the switching circuit 14, and the alarm signal from the alarm generation circuit 11 causes the piezoelectric element 5 to be activated. is activated and an alarm sound is generated.

In the above embodiment, an example in which the present invention is used to prevent overtaking of a train or the like will be described, but the present invention is not limited to this, and may be used to detect the number of processes of a workpiece on a factory line or the like.

〔effect〕

According to the present invention, a vibration sensor is used to determine whether a moving object is running or stopped, and the number of times the moving object has stopped is detected, so the configuration is extremely simple, especially for trains. If used to detect the number of stops on a train, it can prevent people from overtaking the train and allow them to board the train with peace of mind.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention, and FIG. 2 is a block diagram showing another embodiment. 5... Vibration sensor 7... Waveform shaping circuit 8... Retrigger circuit 9... Presettable down counter and above

Claims (1)

[Claims] A vibration sensor that detects the vibrations of a moving object such as a train, and a determination circuit that determines whether the moving object is running or stopped based on the output of this vibration sensor are provided. A device for detecting the number of times a moving object stops, which is equipped with a counting circuit for counting the number of times the moving object stops;