Registers – Platform operated – Platform actuated traffic counters
Patent
1979-07-09
1982-06-22
Thesz, Joseph M.
Registers
Platform operated
Platform actuated traffic counters
235 92MT, 34087002, G06M 1276, G08C 1916
Patent
active
043364470
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a converter of meter-gauge readings for converting the readings of a house hold meter-gauge to indicate the consumption of gas, water or electric power into an electric AC signal of binary code so that the readings of the house hold meter-gauge can be transmitted over a telephone channel and the like.
BACKGROUND TO THE INVENTION
Lately introduction of an automatic remote-checking system of meter-gauge readings for gas, water or electric power consumption over the telephone channel has come to be considered so that the job of checking the meter-gauge readings can be made efficient and this checking can be done any time. As the conventional readings-converter for such an automatic checking system, there is, for instance, the following device. Namely, a meter-gauge is equipped with a figure-wheel to give the readings and this figure-wheel normally carries figures in decimal code. Binary codes corresponding to these decimal code figures are given on said wheel in the form of magnetic information or indentation, which is converted to an electric signal by a magnetic head or a microswitch and so on which is provided alongside the wheel. An AC signal modulated by this electric signal is sent over the telephone channel. In this device, therefore since the figure-wheel has a singular configuration, an ordinary figure-wheel must be modified for this purpose. And in this device, since a magnetic head or a microswitch is needed to identify the magnetic information or indentation on the figure-wheel, electric circuits for transmission and modulation and the like and a power source to drive these circuits are indispensable.
SUMMARY
The present invention relates to a converter of meter-gauge readings to be used for automatic remote checking of the readings or a gas-, a water- or an electric power meter-gauge.
Said converter serves to make a decimal-binary conversion of the readings of such a meter-gauge to enable transmission over the telephone channel and so on. Namely, the readings of the figure-wheel in such a meter-gauge are rendered into binary codes by binary cams; and the oscillation of oscillators matching said binary codes is controlled and converted to an AC signal. The frequency of said AC signal fits into the allowable frequency band of the transmitting means such as telephone channel. Thus according to the present invention, a power source or a complicated electric circuit is needless, and the converter can be attached to the existing meter-gauge without any modification.
DISCLOSURE OF THE INVENTION
According to the present invention, the readings of the figure-wheel in a meter-gauge are changed to binary codes by means of a series of binary cams. Oscillators corresponding to these binary codes are controlled to two different states of oscillation and thereby the oscillation of each oscillator is converted to an AC signal. The frequency of this AC signal is set such as to fit into the allowable frequency band of the transmitting means like the telephone channel. To be more specific, oscillators are provided corresponding to a plurality of binary cams for changing the meter-gauge readings to binary codes. Each oscillator has an oscillating means. By means of the indention formed on the face of each cam to represent the binary code and by means of a control piece which controls the oscillator to two states of free oscillation and restricted oscillation, depending on said indention, the oscillation of the oscillator is controlled corresponding to the readings in binary code. Thus the oscillation converted to an AC signal is transmitted over the telephone channel. The means to oscillate said oscillator in the present invention is the energy released from storage in spring means such as a coil spring. Accordingly the present invention needs no electric power supply, no intricate electric circuit; with a simple mechanism it can reliably convert the meter-gauge readings to an electric signal favourable for transmission over the telephone ch
REFERENCES:
patent: 2813677 (1957-11-01), Scarbrough
patent: 3387267 (1968-06-01), Little
patent: 3518652 (1970-06-01), Dransfield et al.
patent: 3656133 (1972-04-01), Ichikawa et al.
patent: 3721806 (1973-03-01), Stothart
patent: 3723711 (1973-03-01), Kamata et al.
patent: 3962691 (1976-06-01), Langenfeld
Itakura Takayuki
Kawano Akio
Oguchi Yuzo
Osaka Gas Co. Ltd.
Thesz Joseph M.
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