JPS601679B2 - Sequential reading device - Google Patents

Description

[Detailed Description of the Invention] This invention is used for centralized meter reading of meters installed by customers such as water meters and gas meters, so that each of the many meters to be read always changes in accordance with the current indicated value. A transmitting device having a variable electrical quantity, for example, the resistance value of a variable resistor for each digit, is provided, and a receiving device connected to each transmitting device by a line sequentially changes the current electrical quantity for all the transmitting devices. The present invention relates to a sequential readout device, which is provided with a device for reading out corresponding indicated numerical values.

In a conventional sequential reading device of this type, a consistent number is attached to each transmitting device, and the receiving device simultaneously displays the consistent number and the corresponding numerical value indicated by the transmitting device.

However, in the case of centralized meter reading, it is convenient to organize the meter readings by comparing them with the residential unit number unique to the customer, and there are fewer errors.
However, with conventional equipment, it was necessary to translate the consistent number into the housing unit number when tabulating the table, which was very inconvenient.

This invention aims to eliminate this inconvenience. As shown in the block diagram in FIG. 1, in the device of the present invention, each transmitting device 1 is assigned a unique number, such as matching the residential unit number of the customer, and the receiving device 2 is assigned a unique number to each transmitting device. a permutation reading device 3 that permanently stores a permutation formed by arranging the numbers uniquely determined for 1 in a certain order;
, a control device 4 that sequentially generates a switching signal, a readout signal, and an output signal, and a corresponding transmitting device 1 according to the order of each number of the permutation stored in the permutation storage device 3 for each switching signal.
and each time the switching signal is followed by the output signal, the instruction value corresponding to the current electrical quantity of the transmitting device 1 that is suitable for conduction at that time is temporarily stored for a short period of time until the next output signal. Further, a numerical display device 6 displays the instruction numerical value stored in the temporary storage device 5 for each output signal that follows a successive signal, and a permutation storage device 3 stores each output signal. A number display device 7 for displaying numbers according to the order of permutations is provided.

An EPROM may be used as the permutation storage device 3, and a microcomputer may be used as the control device.

In this case, for each output signal, the number signal of the permutation storage device 3 and the numerical value signal of the temporary storage device 5 are transmitted to the number display device 7 and the numerical value display device 6 via the microcomputer 4, respectively.

As the transmitting device 1 and the temporary storage device 5, the following technology which has already been filed by the applicant of this application can be used. This technology is described in the specifications and drawings of the Tokkyu Sho 51-10180 Scream Separate Readout Signal, and as shown in Figure 3,
For remote reading of 4-digit numerical values, one group of transmitters and one receiver are interconnected by a common line shared by all transmitters, a measurement line, and a control line dedicated to each transmitter. , for each digit between the shared line and the measurement line, for each transmitter,
Interposing a variable resistor that takes a resistance value specific to the transmitted digit through a digit switch that is conductive only in a combination specific to that digit of each voltage polarity of the measurement line and the control line with respect to the common line,
The receiver includes a digit selection device that changes the combination of voltage polarities of the measurement line and the control line with respect to the common line in a fixed order corresponding to the order of the digits, and a constant current device that keeps the current of the measurement line constant. A detection storage device that detects and stores each digit of the transmitted digit based on the potential difference between the common line and the measurement line is provided, and the transmitter and receiver are connected with a small number of lines to enable remote readout of up to 4 digits. In addition, an oscillator selection device is provided that selects the control line to be connected in accordance with the oscillator to be read.

As for the numerical display device 6 and the number display device 7, it is preferable to use a tatoo type lighting system.

Note that the control device 4 in the sequential readout device of FIG. 1 generates a paper feed signal in addition to the switching signal, readout signal, and output signal.

Then, 10 consecutive paper feed signals are accompanied by a cut-off signal, a readout signal, and an output signal, and occur prior to the output signal, and 1 time following these 10 paper feed signals is accompanied by a switching signal, a readout signal, and an output signal. No signal is generated. A tabulation layer 8 is provided on the outside of the receiving device 2 in a detachable manner.

As shown in FIG. 2, the tabulation calendar 8 is configured to advance the recording paper 9 in constant increments parallel to the paper surface each time the paper feed signal is sent, and the paper feed device 10 to move the recording paper 9 parallel to the paper surface each time the output signal is sent. Temporary storage device 5 along the straight line of the stereotaxic layer facing in the direction perpendicular to the walking direction.
printing device 11 that prints the instruction value stored in the device and the number corresponding to the transmitting device 1 to which the temporary storage device 5 is suitable;
It is made up of. In this example, the printing device 11 selectively discharges a plurality of electrodes while displacing them in a direction perpendicular to their rows, causing the recording paper 9 to locally turn black with the sparks, thereby making characters appear as a whole. With this configuration, the receiving device 2 receives a number unique to the transmitting device 1 (such as a consumer's pillar door number) and the corresponding numerical value indicated by the measuring instrument in accordance with the predetermined order of the transmitting device 1. Since they can be read simultaneously, if they are recorded as they are, subsequent processing becomes very simple and the above purpose is achieved.

When using the tabulation layer 8 of this embodiment, the unique number of the transmitting device 1 and the designated numerical value are printed on the same line on the recording paper 9 in contrast, and an appropriate number of lines are printed on the recording paper 9. Because there is a blank space between each row, a table that is very easy to read can be created. The present invention is extremely useful industrially because it facilitates centralized meter reading of consumer-installed meters and reduces meter reading costs.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of one embodiment of the present invention, and FIG. 2 is a block diagram of an embodiment of the present invention.
FIG. 1 is a side view of the tabulation layer, which is part of the embodiment of FIG. 1, and FIG. 3 is a block diagram of an example of the transmitter and temporary storage device. 1... Transmitting device, 2... Receiving device, 3
... Kawahara series memory device, 4 ... Control device, 5
... Temporary storage device, 6 ... Numerical display device, 7 ... Number display device, 8 ... Tabulation layer, 9 ...... Paper money, 10...Paper feeding device, 11...Recording device. Figure 1 Next Figure Z Figure 3

Claims (1)

[Scope of Claims] 1. A transmitting device having a variable electrical quantity that constantly changes in response to the current indicated value is provided in each of a large number of measuring instruments to be read out, and is connected to each transmitting device by a line. to the receiving device,
a permutation storage device that permanently stores a permutation formed by arranging numbers uniquely determined for each transmitting device in a fixed order; a control device that sequentially generates a switching signal, a readout signal, and an output signal; Each time a signal is brought into contact only with the corresponding transmitting device according to the predetermined order of each number of the permutations stored in the permutation storage device, and each time a readout signal following a switching signal is issued, the current value of the transmitting device which is conducting at the time is A temporary storage device temporarily stores an instruction value corresponding to an electrical quantity for a short period of time until the next readout signal, and furthermore, the instruction value stored in the temporary storage device for each output signal generated after the readout signal is stored. A sequential readout device comprising: a numerical display device for displaying numbers; and a number display device for displaying numbers in accordance with the order of permutations stored in a permutation storage device each time the output signal is output. 2. In the sequential reading device according to claim 1,
The control device also generates a paper feed signal, and the switching signal, the readout signal and the output signal are generated in pairs with the paper feed signal except for a certain number of successive times of the paper feed signal followed by another certain number of times. At the same time, the output signal is generated after the paper feed signal, and a tabulation device is detachably provided outside the receiving device, and the tabulation device advances the recording paper in parallel to the paper surface in fixed increments each time the paper feed signal is received. Compatible with transmitting devices in which the temporary storage device is in electrical continuity with the instruction value stored in the temporary storage device along a straight line at a fixed position that is parallel to the paper surface and perpendicular to the stepping direction. A sequential reading device consisting of a number to be printed and a printing device to print the number.