CN2336411Y - Controlling unit for code exchange prepay data - Google Patents

Abstract

The utility model relates to a controlling unit for exchanging code with prepay data. The control circuit of the controlling unit is, through the input port lines of an SCM, connected with a keyboard and the counting sensor of a contact switch S3 which is installed on the driving plate of a counting base table, and the output port lines of the SCM is connected to a cut-off actuating mechanism, a off position detection device, an encryption chip for demodulating ciphers and storing data. The utility model can utilize the existing base table metering devices for electricity, water and gas, and adopts a mode of exchanging code with prepay data to avoid abuses of using IC cards and meets various practical requirements from environment. The controlling unit, therefore, has the advantages of advanced technology, convenient operation, high data security, low cost, simple installation, and simple maintenance.

Description

The control device of code exchange prepayment data

The utility model relates to the prepaid device that fields such as a kind of electric power, tap water, combustion gas, CATV (cable television), heat supply utilize electronic technology, especially a kind of control device that utilizes code exchange prepayment data.

Along with development of electronic technology such as IC-cards, because the original all inevitable drawback of bringing to management work for the manual charge in fields such as electric power, tap water, combustion gas, CATV (cable television), heat supply, so the IC prepaid that in many estate managements, extensively adopts, for the problems such as difficult charge that solve these fields provide approach.But in the practice in several years, it is found that there is the problem that can't overcome in existing IC-card prepaid device:

1, the data security confidentiality of IC-card is lower, and is decrypted easily.

2, because the restriction of cost of products makes power system capacity can not do very greatly, do and can not realize verification effectively by read-write behaviour by the limited program space for IC-card, cause product reliability to descend;

3, because IC-card is finished by connector with system and is connected, loose contact and behaviour do the improper reading and writing data mistake that often causes, and reliability of products is further descended;

4, for the product of the more abominable occasion of environment for use, for example tap water meter, gas meter, flow meter, can't solve the IC-card gas meter that is installed on the kitchen and the bayonet socket pollution problem of IC-card water meter, because the IC-card bayonet socket must be subjected to the influence of factors such as greasy dirt, humidity, water logging, causes system's cisco unity malfunction;

5, use IC-card prepaid mode in a large number, made things convenient for supply department, but bothered the user, because the user must pay dues to the supply department appointed place in person and write card;

6, because control system needs to be connected firmly with computing machine expense publishing system, and mutual restriction is more, can cause reliability of products to reduce equally.

The purpose of this utility model is to provide a kind of control device of code exchange prepayment data, and it is without the IC-card swap data, but the key in data on the use device; The user can pay dues by the call voice payment, need not write card to relevant department in person; The The data of keyboard input is through the code of ovennodulation, and this code has the automatic restore data of user control, improves the data security confidentiality greatly.

The purpose of this utility model is achieved in that a kind of control device of code exchange prepayment data, it is characterized in that: its control circuit connects keyboard, sensor for countering by single-chip microcomputer input port line, and the single machine output end line connects and cuts off topworks and display.

The single machine output end line also is connected to demodulation password and deposit data encryption chip.

The single machine output end line also is connected to the off-position pick-up unit.

Topworks can be the forward and backward motor.

The off-position pick-up unit can be travel switch S1, the S2 that is installed in respectively on the positive and negative motor.

Sensor for countering can be the touch switch S3 that is installed on the counting base table dial.

According to the technique scheme analysis as can be known, the utility model advanced technology, it can utilize the base table measuring apparatus of existing electricity, water, gas, adopt the mode of code exchange prepayment data, avoided using all drawbacks of IC-card, satisfy the needs of various actual environments, extremely easy to use, data security reliability height, cost is lower greatly, and installation and maintenance are simple.

Below in conjunction with accompanying drawing and specific embodiments the utility model is described in further detail.

Fig. 1 is circuit theory diagrams of the present utility model.

Referring to Fig. 1, a kind of embodiment of the control device of a kind of code exchange prepayment data of the utility model.Its control circuit is by the input port line RB1-RB7 of singlechip CPU PIC16C73A, the 12-19 pin that RC7 connects keyboard, CPU mouth line VDD, RB0 meet the touch switch S3 that is installed on the counting base table dial as sensor for countering, like this whenever the counting base table rotates lattice, for example kilowatt-hour, one ton of water, one cubic metre of measurement unit such as gas, touch switch S3 moves once, and single-chip microcomputer PIC16C73A mouth line RB0 is once counted.Single-chip microcomputer mouth line RA3, RA4 connect and cut off triode N2, N3, and triode N2, N3 meet topworks's forward and backward motor M 1, M2 respectively, mouthful line RB2-RB4 display lcd /WR, DATA ,/the CS end.Single machine output end line RC0-RC3 also is connected to demodulation password and deposit data encryption chip F100, demodulation password and deposit data encryption chip F100 completion code separate the deposit data work that is in harmonious proportion, its through port line RC0-RC3 and single-chip microcomputer swap data.Mouth line RC5, the RC4 of single-chip microcomputer meet off-position pick-up unit travel switch S1, the S2 that is installed in respectively on positive and negative motor M 1, the M2, after CPU sends execution command, positive rotating motor M1 forwards certain position to, the S1 closure, the RC5 of single-chip microcomputer obtains a signal, single-chip microcomputer RA3 output low level, positive rotating motor M1 stall; When positive rotating motor M2 forwards certain position to, the S2 closure, the RC4 of single-chip microcomputer obtains a signal, single-chip microcomputer RA4 output low level, positive rotating motor M2 stall; Thereby pick-up unit travel switch S1, S2 can detect the displaced position of cut-out, closed topworks forward and backward motor M 1, M2 respectively.

Therefore, single-chip microcomputer, keyboard, display constitute core cell; Single-chip microcomputer receives the RB0 mouth and interrupts producing metering signal; It is that 0 o'clock cut-out is controlled that motor or relay are subjected to Single-chip Controlling to finish prepayment data; F100 finishes depositing of demodulation password and data; S1, S2 finish the supervision of dissengaged positions; HT7044 finishes the supervision to cell voltage; HT1033 finishes power supply voltage stabilizing conversion.

Code exchange principle of work of the present utility model is as follows:

The code that the user produces charge department, by keyboard input dragon system device, input process is monitored that by LCD display the cooperation function key is made amendment and confirmed.

After product is installed, import one group of cognizance code by administrative authority from keyboard, be input in the system according to one group of code that the amount of money of paying dues produces from pre-paying by the user again, this group code carries out the XOR decryption processing with the identification code of input in advance, recover the data of pre-paying, system will provide corresponding service to the user according to these data thereafter, equal at 0 o'clock up to these data, system will cut off user power utilization or water or gas, force the user to pay dues to prepaid department once more.But certain system is certain overdraw quantity of opening entry electricity, water, gas also, the exceed overdraft limit of will examining and making cuts automatically after the user imports the forward purchasing value once more.

As user once more during pre-paying, one group of code that system need be generated and show at display offers the pre-paying place, the pre-paying place will organize code according to this and recover Customs Assigned Number automatically in computing machine, enter the management window of paying dues, after the user determines the volume of paying dues, computer management system then generates one group of new code automatically, is input to the charging device of oneself for the user.Because code has adopted cryptographic means, so the user has a mind to change code or with the code input error, user's charging device is rejected this code, if input error continuously, charging device will cut off electricity consumption, and can not recover voluntarily.

Owing to use code exchange pre-paying data, therefore the user can pass through the phone financial payment systems, by voice suggestion and button operation, the password that input bank licenses, enter according to prompting, water, gas prepaid column, input user charging device generates and behind the code that display shows, as correctly, the amount of money is pre-payed in input again, then automatic this amount of money of in user's deposit, transferring of phone financial payment systems, and generate one group of code, by the voice informing user, the user can inquire about this group code of generation at any time, be entered into charging device after, the operation of swap data of completion code.

Use of the present utility model, can improve the serviceable life and the reliability of equipment, and greatly user friendly pre-paying, reduce the labour intensity of administrative authority, avoid phenomenon of defaulting to take place, solve the counting cost by gas meter problem of registering one's residence, promoted social stability, stopped the queasy transaction that produces in the charging process,, improved the modern management level of administrative authority for user and supply department bring economic benefit.

Claims (6)

1, a kind of control device of code exchange prepayment data is characterized in that: its control circuit connects keyboard, sensor for countering by single-chip microcomputer input port line, and the single machine output end line connects and cuts off topworks and display.

2, the control device of code exchange prepayment data according to claim 1 is characterized in that: the single machine output end line also is connected to demodulation password and deposit data encryption chip.

3, the control device of code exchange prepayment data according to claim 1 is characterized in that: the single machine output end line also is connected to the off-position pick-up unit.

4, the control device of code exchange prepayment data according to claim 1 is characterized in that: topworks can be the forward and backward motor.

5, the control device of code exchange prepayment data according to claim 3 is characterized in that: the off-position pick-up unit can be travel switch S1, the S2 that is installed in respectively on the positive and negative motor.

6, the control device of code exchange prepayment data according to claim 1 is characterized in that: sensor for countering can be the touch switch S3 that is installed on the counting base table dial.