JPS63305493A - Power supply method and apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Objective of the Invention] (Field of Industrial Application) The present invention relates to a power supply system that uses a card equipped with a storage medium such as a memory card to supply and sell commercial power. The present invention relates to a method and apparatus for supplying the same.

(Prior art) Conventional wattmeters used for supplying and selling commercial power use, for example, a gear mechanism to extract the amount of electricity commensurate with the usage as the amount of rotation of a built-in disc using electric induction. There is a system in which the amount of power used is transmitted to an index meter and the amount of power used is read from the instruction of this JB index meter. In order to read the index meter, that is, to read the amount of electricity used, a meter reader was dispatched every month from the power supply side to visually read the meter.

(Problems to be Solved by the Invention) Conventional wattmeters transmit the amount of rotation of a disc to an index meter via a gear mechanism, and the amount of power used is read from the indication of this index meter. Measurement errors tend to occur in the transmission process of the gear mechanism due to poor meshing of the mechanism or deterioration over time due to mechanical wear, and as a countermeasure, periodic adjustments or replacement of gear parts are required. There was a problem.

In addition, in order to check the monthly power consumption m, the power supply side needs manpower to dispatch meter readers and collect charges, and if the customer changes midway through the month, Meter reading is required each time, and in some cases, troubles may easily occur between the previous consumer and the new consumer, or between these consumers and the power supply side over the electricity usage fee. In particular, for important households such as apartments and boarding houses that are frequently visited, the power supply side had to go and check on the selected residence each time it was convenient for the customer.

On the other hand, it was also a hassle for consumers, as they had to go to the power supply side and complete the necessary procedures each time they were selected.

This invention was made based on the above circumstances, and allows the power supply side to eliminate the need for manpower for meter reading and fee collection, while also allowing the consumer to receive the required amount of power at multiple locations when needed. It is an object of the present invention to provide a power supply method that can achieve this with high accuracy, and a power supply device that can achieve this with high accuracy.

[Structure of the Invention] (Means for Solving the Problems) In order to solve the above problems, the first invention measures the amount of power used by a power amount measuring means, and measures the amount of power used by a card control means. A predetermined card having a storage medium in which the amount of electricity is recorded is identified, and the recorded contents of the storage medium are rewritten and controlled according to the amount of electricity used measured by the amount of electricity measuring means, and the amount of electricity used is controlled. The gist of the present invention is to turn off the switch means connected to the power supply line when a certain amount of usable power recorded in the storage medium is reached.

Further, the second invention includes a photoelectric rotation number counting means for counting the number of rotations of a disk that rotates with a torque proportional to the power used;
A power amount measuring means for measuring the amount of power used from the number of revolutions counted by the photoelectric number of revolutions counting means, and a predetermined card equipped with a storage medium on which a certain amount of usable power is recorded, and the above-mentioned a card control means for changing and controlling the recorded contents of the storage medium according to the amount of power used measured by the power amount measuring means; a switch means connected to a power supply line; The present invention further comprises a switch control means for controlling the switch means to turn off when the amount of power used reaches a certain amount of available power recorded in the storage medium.

(Function) In the first invention, the amount of power used by a consumer is measured by the power amount measuring means. On the other hand, the card control means identifies a predetermined card having a storage medium on which a certain amount of usable power is recorded, and the recorded content of the storage medium is measured by the above-mentioned power amount measuring means. The amount of power used is rewritten so that the amount of power used is sequentially reduced. When the amount of power used reaches a certain amount of available power recorded in the storage medium, the switch means connected to the power supply line is turned off, and the amount of power corresponding to the amount of available power is supplied. , the sale is made automatically.

Further, in the second invention, the number of rotations of a disk that rotates with a torque proportional to the power used is counted in a non-contact manner by a photoelectric rotation number counting means, and the counted number of rotations is used by the power amount measuring means. Electric energy is measured.

On the other hand, the card control means identifies a predetermined card having a storage medium on which a certain amount of usable power is recorded, and the recorded content of the storage medium is measured by the above-mentioned power amount measuring means. The amount of electricity used will be gradually reduced. When the amount of power used reaches a certain amount of usable power recorded in the storage medium, the switch means connected to the power supply line is turned off by the switch control means. As a result, automatic power supply and sales commensurate with a certain amount of available power can be realized with high precision at all times.

(Example) Hereinafter, an example of the present invention will be described based on FIGS. 1 to 3.

First, to explain the configuration of the power supply device, in Fig. 1, numeral 1 is a rotational speed counting section as a photoelectric rotational speed counting means, and as shown in detail in Fig. 2, the number of rotations is proportional to the power used. A black chip 1 attached to a disc 2 that rotates with driving torque
A photoelectric sensor consisting of a light emitting diode 4 and a phototransistor 5 is provided for detecting 3 in a non-contact manner.

Reference numeral 6 denotes a resistor for limiting the driving current of the light emitting diode 4, and a pulsed rotational speed signal detected by the phototransistor 5 is sent via an output line 7 to a power amount measuring section to be described later. 8 is a light shielding cover. Although not shown in the figure, an electromagnet with a voltage coil wound thereon and an electromagnet with a current coil wound thereon, which are included in a known integrating wattmeter, are attached to the disk 2. Due to electric IF induction in both coils, it rotates with a driving torque proportional to the power used. 9
11 is a gear mechanism for transmitting the amount of rotation of the disk 2, and 11 is an index meter for indicating the amount of rotation. These gear mechanism 9, fingers, and counter 11 are the same as those provided in conventional integrating wattmeters. It is equipped.

Reference numeral 12 denotes an electric energy measuring means, which is equipped with a ring counter 13 and converts the rotational speed signal sent from the rotational speed counting section 1 into units of, for example, 1 KWH (1 KWH/1000 rotations) or 0°1 as required. This converts it into a unit electric energy signal of about KWH.

14 is the center 1bIIt111 section, 15 is the card control section,
Reference numeral 16 denotes a card mechanism section into which a predetermined card (not shown) having a storage medium on which a certain amount of usable power is recorded is inserted. In response to instructions from the central TI control unit 14, the card control unit 15 performs functions such as checking the shape of the card to determine whether it is a predetermined card, reading the amount of remaining power used recorded on the card, or rewriting the recorded content. It is something to do. The card control section 15 and the central control section 14 constitute a card control means. Card mechanism section 1
6 is provided with an LED display (not shown) for displaying the recorded contents of the card.

17 is a switch control section, 18 is a triac as a switch means, and the triac 18 is connected to an AC power supply line 19. The switch control section 17 sends out a control signal (microcurrent) for turning on or off the triac 18 according to instructions from the central control section 14 . The switch control section 17 and the central control section 14 constitute a switch control means. AC100■ by using triac 18 as a switching means
, it is possible to automatically control on/off of a power supply of about 30 A from a remote point using a minute current signal.

The power supply line 19 passes through the triac 18 and is then connected to appropriate electrical equipment as a power load. Reference numeral 21 denotes a DC converter, and the DC converter 21 supplies DC 1 to each control section, card mechanism section 16, and the like.

Next, a method of supplying power by the power supply device configured as described above will be explained using the flowchart of FIG.

When a predetermined card is inserted into the card mechanism section 16, the power of the device is turned on (step 22), the card is taken in to a predetermined position (step 23), and the card control section 15 is operated according to instructions from the central control section 14. The shape of the card is checked and it is determined whether it is a predetermined card (step 2).
4). If the result of the determination is a formal decision (Yes) and the card is a predetermined card, the remaining power consumption that is the memory content of the card is read out (step 25), and it is determined in step 26 whether the memory content is normal or not. After that, if it is normal (Yes), the remaining power used is stored in the memory in the central control unit 14 (step 27).

Then, an in-use indication is written to the card (step 28).
, the remaining power consumption is displayed on the LED display (step 29). Next, the switch control unit 17 is instructed to turn on the switch (step 30), and the triac 18 is turned on by the on control signal, and power is supplied to the required electrical equipment. On the other hand, the card control section 15 is powered off (step 31), and the predetermined card remains inserted into the card mechanism section 16.

If the card determination in step 24 is negative (NO),
Alternatively, if the confirmation of the stored contents in step 26 is negative (No), the process moves to step 36, where the power to the card control section 15 is turned on and the card is ejected (
Step 37), power supply is denied.

As mentioned above, when a normal card is inserted and power is supplied, during this time the rotation speed counter 1 counts the rotation speed of the disk 2 per unit time according to the amount of power used. For example, 1
A power consumption signal in units of KWH is output, and this is taken into the central control unit 14. Then, in step 32, it is determined whether the remaining power consumption is rOJ or not, and the result is affirmative (Ye
S), the switch control unit 17 is instructed to turn off the power in step 33, and the triac 1 is turned off by the off control signal.
8 is turned off and subsequent power supply is stopped. At the same time, under the control of the card control unit 15, the remaining capacity of the card is set to “0” (step 34), and after the memory contents in the central control unit 14 are cleared (step 35)
), card ejection is performed (steps 36 and 37).

If the determination result in step 32 is negative (No) and the remaining power usage is not "0", 1 KWP1 minute is subtracted from the remaining power usage in the memory in the central control unit 14 (step 3
9) The remaining power consumption as a result of the subtraction is displayed on the LED display (step 40). And step 4
1, it is again determined whether the remaining power consumption is "0" or not. If the result of this determination is negative (NO), the process returns to step 32, and if the result is affirmative (Yes), the remaining usage amount becomes "0", a reminder tone is emitted for about 1 minute (step 4).
2) The power of the card 11111 section 15 is turned on (step 43), and after the usability "0" is bunched on the card, it is ejected (steps 44 and 45).

Next, in step 46 it is determined whether a new card has been inserted. As a result of this determination, if no new card has been inserted (No), the process returns to step 32 and power supply is stopped, etc. If a new card has been inserted (Yes), the card is , determining whether it is a predetermined card, reading the memory contents of the card, determining whether the memory contents are normal or not, and storing the remaining amount of power used in the memory in the central control unit 14. A series of operations are performed, including writing the in-use indication to the card, and displaying the remaining power used on the LED display (steps 47 to 53), and the power supply to the required electrical equipment is turned off. It will be carried out subsequently.

On the other hand, when a required card is inserted into the card mechanism section 16 and power is being supplied, when the power switch of the device is turned on, the power of the card control section 15 is turned on.
The remaining power consumption is stored on the card (step 5).
4.55), the bunch hole information indicating the frequency of use is added to 1 (step 56), and in step 57 it is determined whether the remaining power consumption is "0" or not. If the remaining power consumption is not "0"(No>), the information written to the card is read out (step 5) and whether it matches the usability of the memory in the central control unit 14. is determined (step 59).

If the result of this determination is affirmative (Yes) and it is confirmed that the information written to the card and the remaining capacity in the memory match, it is further determined in step 60 whether or not the punch hole information has changed from before use. is changed (Yes), the approximate remaining usage number is bunched (step 61), the in-use display of the card is canceled (step 62), and then the switch control unit 17 is instructed to turn off the power (step 61). 64) Power supply is stopped by turning off the triac 18. After the card is ejected (step 65) and used for the next time, the power of the device is turned off (step 66).

As a result of the determination in step 60, if the punch hole information has not changed (No), the new approximate remaining usage number will not be bunched,
The card is ejected as is. Further, if the determination result in step 5 is negative (No) and the information written to the card and the remaining amount of use in the memory do not match, further step 63 is performed.
It is determined whether this is the first writing, and if the determination result is affirmative (Yes), the process returns to step 55 and the remaining usage amount is further written to the card. If the determination result in step 63 is negative (No), the approximate remaining usage number is not punched and the paper is discharged as is.

[Effects of the Invention] As explained above, according to the power supply method according to the present invention, the card control means can perform card identification of a predetermined card having a storage medium in which a certain amount of usable power is recorded. At the same time, the recorded contents are sequentially rewritten according to the amount of power used measured by the power amount measuring means, and when the amount of power used reaches a certain amount of usable power recorded on the storage medium, the power supply line is Since the connected switch means is controlled to be turned off, the power supply side can automatically supply and sell electricity without requiring manual labor for meter reading and fee collection, while for the consumer, The advantage is that the required amount of electricity can be received at multiple locations when needed.

Another advantage of this power supply method is that it is possible to remotely read the meter and control the power supply using a telephone line, etc., and it is also possible to analyze power usage status, predict demand, etc. by connecting it to a computer. There is.

Further, according to the power supply device according to the present invention, the number of rotations of the disk that rotates with a torque proportional to the power used is counted in a non-contact manner by the rechargeable rotation number counting means, and the number of rotations is calculated from the counted number of rotations. The power consumption measuring means measures the amount of power used, and the recorded contents of the storage medium provided on the predetermined card are rewritten according to the measured amount of power used, so the power consumption measurement unit will not change over time. It has the advantage that there is very little deterioration, the amount of power used can be measured with high precision at all times, and automatic power supply and sales of the amount of power can be better realized.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the power supply device according to the present invention, FIG. 2 is a block diagram showing the photoelectric rotation speed detection means in the same power supply device, and FIG. 3 is a flowchart for explaining a power supply method. 1: Rotation speed counting section (photoelectric rotation speed counting means), 2: Disk, 4: Light emitting diode, 5: Phototransistor, 12: Electric energy measurement means, 14: Central control section, 15: Card control means. 16: card mechanism section; 17: switch control section constituting switch control means; 18: triac (switch means); 19: power supply line. Agent: Yasuo Miyoshi, Patent Attorney (Volunteer to write amendments to Figure Procedures) 9th day of Mozukishu, 1985

Claims (2)

[Claims] (1) The power amount measuring means measures the amount of power used, the card control means identifies a predetermined card that is equipped with a storage medium on which a certain amount of usable power is recorded, and the amount of power used is measured by the power amount measuring means. The content recorded on the storage medium is rewritten and controlled according to the amount of power used, and when the amount of power used reaches a certain amount of usable power recorded in the storage medium, a switch means connected to the power supply line is activated. A power supply method characterized by off-control. (2) A photoelectric rotation speed counting means for counting the number of rotations of a disc that rotates with a torque proportional to the power used, and an electric power amount for measuring the amount of power used from the number of rotations counted by the photoelectric rotation speed counting means. Discriminating a predetermined card having a measuring means and a storage medium on which a certain amount of usable power is recorded, and rewriting the recorded contents of the storage medium according to the amount of power used measured by the power amount measuring means. a card control means for controlling, a switch means connected to a power supply line, and a switch means connected to a power supply line; 1. A power supply device comprising switch control means for controlling off of the switch means.