CN2428781Y

CN2428781Y - Electronic electric meter with spare data-record storage and special card-insertion device

Info

Publication number: CN2428781Y
Application number: CN 00238709
Authority: CN
Inventors: 吕洪波; 李实�
Original assignee: 吕春晓
Priority date: 2000-06-19
Filing date: 2000-06-19
Publication date: 2001-05-02
Anticipated expiration: 2010-06-19

Abstract

The utility model discloses an electronic electric meter with a data record backup storage and a special card-insertion device for reading cards. The utility model is characterized in that a storage chip arranged in an original electronic electric meter is changed into an IC card which can be inserted or withdrawn. A card insertion opening (141) is arranged on a meter shell, a card insertion frame (18) is arranged in the card insertion opening (141), and a corresponding contact is arranged on the card insertion frame (18) and contacts a contact which is arranged on an IC card (17). When the IC card is in setting interval time, data can be controlled and written by an internal circuit of the meter. After the electric meter is damaged, the data can be read. The card insertion device for reading cards is formed by that a circuit board is wrapped by a shell, both ends of the circuit board are provided with a card insertion frame (401) and a socket (402) which respectively correspond to a card insertion opening and an opening which are arranged on the shell, and the IC card (17) with the data can be inserted into the card insertion frame from the card insertion opening to read the data.

Description

The electronic electric energy meter and the special-purpose card-inserted device that have the data recording backup of memory

The utility model relates to a kind of electronic electric energy meter that measures electric energy, particularly a kind ofly has a card-inserted device that the suitable electronic electric energy meter of data recording back-up storage and Card Reader are used.

Along with the progress of society and an economic drawer, brought the high speed development of power industry, also accelerate the renewal of electric power meter and changed formula, since the 1980s, country carried out implementing the peak and valley time electricity price, electric energy metrical is employed new technology, new equipment, dress to international advanced technology, replace the electromechanical multi-rate meter with the electronic type multi-function watt-hour meter.

At present, electric multi-functional electric energy meter, be widely used gradually with its advance, DSSD 110 type phase three-wire threes and DISD 110 type three-phase and four-line electric multi-functional electric energy meters as Jiangbei machinery Factory, Jilin City and river, Shenzhen machine Industrial Co., Ltd. cooperative research and development, as Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, its watchcase be by last watchcase 11, down watchcase 12, and end cap 13 fasten and form, the side of last watchcase 11 does not open the door 14, the inside of opening the door is provided with a card inserting mouth 141, and the below of card inserting mouth 141 is provided with four button K ₁, K ₂, K ₃, K ₄Its function is respectively a page choosing, Xiang Xuan, programmes, resets, last watchcase 11 middle parts do not have transparency glass plate 142,142 li portions of glass plate are provided with LCD 15, and LCD 15 belows are provided with six pilot lamp 16 and indicate meritorious respectively and idle pulse, warning, under-voltage and infrared emission and accepting state; Its internal circuit as shown in Figure 5, include data acquisition circuit, Switching Power Supply, photoelectric isolating circuit, the single-chip data processor, the copy timing circuit, each output circuit, and mu balanced circuit, LCD etc. are formed, its principle of work as shown in Figure 6, it is the principle of work block diagram, alternating voltage and current data are after the electric energy metrical processor processing is delivered in sampling, be bonded to through the photoelectricity mat and carry out data processing in the single-chip data processor, realize functions such as electric energy metrical and load control, it can accurately measure forward and reverse meritorious and idle electric energy of four-quadrant, requirement, the every data of decompression calendar scheduling, and can keep three cycle datas of checking meter, carry out four kinds of rates, annual four season section, six cover periods, switch ten secondaries every day, have the reliability height, the sharpness height, advantages such as the life-span is long, be the ideal product that network load was effectively controlled and regulated to power department, this electric energy meter can use a teleswitch and carry out manual programming and check meter, and also can use the palm PC automated programming.

But above-mentioned electric energy meter is positioned at the highfield scope of electric system when work, be subject to the interference of field strengthization and the harm of irresistible situation, as battery failure, whole damage etc., in the case, data can not show sometimes, if want to obtain data, must take electric energy meter apart, with in the AT24C16 type eeprom chip of two in circuit storage data one pull down reading of data therefrom, so, time-consuming, simultaneously, electric energy meter is also caused damage.

The purpose of this utility model provides a kind of electronic electric energy meter that has the data recording backup of memory, and the data recording backup of memory is IC-card.

Another purpose of the present utility model provides the card-inserted device that a kind of Card Reader is used.

For reaching the purpose of this utility model, the utility model by the following technical solutions:

The scheme that has the electronic electric energy meter of data recording back-up storer: be in former copying data timing circuit, with one in original two storage chips IC-card that makes to extract out the activity of insertion into, IC-card can insert from last watchcase card inserting mouth, IC-card is provided with GND, VCC, WP, SDA, the SCL contact, contact on the corresponding IC-card, be provided with in the card inserting mouth and have GND, VCC, SDA, the cage of SCL contact, the principle of its storage data is, the single-chip data processor is every certain interval time, open the power switch of forming by triode, write data to the IC-card pressurization, its interlude is by clock chip and code translator control.

The card-inserted device that Card Reader is used is sealed a circuit board by upper and lower shell, front and rear cover and is formed, front end end cover is provided with card inserting mouth, the corresponding circuits plate is provided with cage in the card inserting mouth, also be provided with GND, the SDA of corresponding IC-card, the contact of SCL, VCC on the cage, rear end cap is provided with an opening, circuit board corresponding in the opening is provided with socket, is connected with card reader with the electric wire that has plug, is connected with printed wire between cage on the circuit board and socket.

The utility model will be further described below in conjunction with accompanying drawing:

Fig. 1 is the front view of electronic electric energy meter.

Fig. 2 is the left view of electronic electric energy meter.

Fig. 3 is the upward view of electronic electric energy meter.

Fig. 4 is the front view when opening of opening the door of electronic electric energy meter.

Fig. 5 is the circuit and the schematic block circuit diagram of electronic electric energy meter.

Fig. 6 is the principle of work block diagram of electronic electric energy meter.

Fig. 7 is the interior improvement part local circuit synoptic diagram of electronic electric energy meter that has the data recording backup of memory.

The three-dimensional appearance synoptic diagram of the card-inserted device that Fig. 8 uses for Card Reader.

The card-inserted device inner structure synoptic diagram that Fig. 9 uses for Card Reader.

The card-inserted device circuit diagram that Figure 10 uses for Card Reader.

See also Fig. 1 to shown in Figure 5, this practical said electronic electric energy meter is identical with the shell of existing electronic electric energy meter, internal circuit is also basic identical, do not repeat them here, the improved part of institute as shown in Figure 7, be to make the wherein storer in former copying data and the timing circuit into IC-card 17, IC-card 17 is to be made by AT24C16 type eeprom chip, be provided with a cage 18 in the copy circuit, cage 18 corresponding IC-cards 17 are provided with GND, SCL, WP, SDA, the VCC contact, VCC contact on the cage 18 is connected with Switching Power Supply 19, GND contact ground connection, SDA contact and single-chip data processor 20 UNICOMs, SCL contact and code translator 21 UNICOMs, cage 18 is located in the card inserting mouth 141, its principle of work is, SCL contact on the cage 18 receives the time data that is transmitted by code translator, the SDA contact receives the energy data that is transmitted by single-chip data processor 20, WP is a test contact, when IC-card 17 inserts in the cage 18, the WP contact is a low-voltage, extracting the back out is high voltage, make single-chip data processor 20 learn whether IC-card 17 inserts, every interval certain hour code translator 21 sends signal to single-chip data processor 20, makes the triode conducting add electronically written electric energy and time data to IC-card 17 by its control switching 19, its objective is after electric energy meter breaks down, IC-card 17 can be taken out, to read the various data that are stored in it, in case loss of data has been eliminated and torn the trouble that table fetches data open, clock chip 22 is 8583 cake cores, and it is to code translator signal 21 input time.

The card-inserted device that Card Reader is used, as Fig. 8, shown in Figure 9, its shell is by last,

lower casing

31,32 and before, rear end cap 33,34 form, front end end cover 33 central authorities are provided with card inserting mouth 331, rear end cap 34 is provided with opening 341, circuit board 40 is located in the shell, the circuit board 40 of card inserting mouth 331 correspondences is provided with cage 401, IC-card 17 inserts in the cage 401 by card inserting mouth 331, the circuit board 40 of opening 341 correspondences is provided with socket 402, be printed with circuit on the circuit board 40 with cage 401 and socket 402 UNICOMs, as shown in figure 10, cage 401 is provided with VCC, GND, SDA, the SCL contact is corresponding with the contact on the corresponding IC-card 17, and each contact on the cage 401 is by printed wire and socket 402 UNICOMs on the circuit board 40, it can be linked to each other with card reader, with reading of data.

Claims

1. electronic electric energy meter that has the data recording backup of memory, it includes, following watchcase (11), (12), end cap (13), last watchcase (11) is provided with open the door (14), last watchcase (11) central authorities are provided with a glass plate (142), glass plate (142) lining portion is provided with LCD (15), be provided with each circuit in the watchcase, it is characterized in that: include an IC-card (17), be provided with a cage (18) in the watchcase, insert cage (18) and be positioned at watchcase (11) card inserting mouth (141), cage (18) is provided with GND, Vcc, WP, SDA, the SCL contact, WP, SDA contact and single-chip data processor (20) UNICOM, SCL contact and code translator (21) UNICOM, GND contact ground connection, the Vcc contact is connected with Switching Power Supply (19), IC-card (17) is inserted in the cage (18).

2. according to the described a kind of electronic electric energy meter that has the data recording backup of memory of claim 1, it is characterized in that: said IC-card (17) is made for the AT24C16 chip.

3. the special-purpose card-inserted device of the IC-card as claimed in claim 1 of pegging graft, its shell is by last, lower casing (31), (32) and before, rear end cap (33), (34) form, it is characterized in that: be provided with a circuit board (40) in the shell, front end end cover (33) central authorities are provided with a card inserting mouth (331), the circuit board (40) that card inserting mouth (331) is corresponding is provided with cage (401), rear end cap (34) is provided with opening (341), the circuit board (40) that opening (341) is corresponding is provided with socket (402), and cage (401) is connected with the printed wire on the circuit board with socket (402).