CN2319974Y - Wired TV timing fees precharger using code for exchanging precharging datas - Google Patents

Abstract

The utility model relates to a wired TV timing fees precharger and a method that exchange fee precharging data with code. The signal lines of a cable TV is connected in series a resistor and an analog switch integrated circuit, a keyboard and both ends of the resistor are connected with the input port of an SCM, the output port of the SCM is connected with the analog switch integrated circuit and a display, and the port lines of the SCM are also connected to a data memory. After the utility model is installed on the line splitter of a cable TV, the cumulative time is taken as the basis of charging, which solves the problem that the fee charging of cable TV sets is difficult and achieves the purpose that the utility model uses code for exchanging data. Users can use private telephones or public telephones and telephone financial service networks to charge fees and obtain codes that can be input into a system by the users so as to achieve the purpose of charging fees and receiving TV signals.

Description

Cable TV timing prepaid device with code exchange prepayment data

The utility model relates to a kind of time set and pre-payment control device of cable TV, especially a kind of cable TV with code exchange prepayment data timing prepaid device that adds up service time.

Charge method is per year adopted in the current cable charge substantially, therefore there are difficult charge and unreasonable charges phenomenon, use the cable TV prepaid controller of IC-card for addressing this problem to have produced as means, the calendar data that sort controller provides according to the calendar chip of system, realize monthly or the purpose of charge per year, this with collect the cable TV annual fee to the user and do not have big difference, use this product not only to increase customer investment, also increased the user buys the IC-card data to the appointed place burden, so this product there is not actual use value.

The purpose of this utility model is to provide a kind of cable TV timing prepaid device with code exchange prepayment data, and it becomes physical resources with invisible cable TV signal, according to user's TV the length of cable TV signal service time is chargeed.

Another purpose of the present utility model is to provide a kind of cable TV timing prepaid device with code exchange prepayment data, and it is opening and closing and realize monitoring and judging user's television set on the CATV signal line.

A purpose more of the present utility model is to provide a kind of cable TV timing prepaid device with code exchange prepayment data, it is by in CATV management organization or obtain the code (exchange of the currency and the time of purchasing can be passed through cash, cash in banks etc.) of the rating time of purchasing in CATV management organization by plain old telephone, that the user will encrypt, contain the code of purchasing the rating time data to some extent and be input in the prepaid device by keyboard, automatically discern relevant data by system, and the user is provided the corresponding rating time.

The utility model purpose is achieved in that a kind of cable TV timing prepaid device, it is series resistor and analog switching ic on the holding wire of cable TV, resistance two ends, keyboard connect the single-chip microcomputer input port, the single-chip microcomputer delivery outlet connects analog switching ic, display, and single-chip microcomputer mouth line also is connected to data storage.

Be connected to isolating transformer or amplifier between the series resistor single-chip microcomputer.

Series resistor and analog switching ic can be more than one.

Keyboard comprises defined function key.

According to the technique scheme analysis as can be known, the utility model is with invisible cable TV signal, by adding up service time as rates ground, thereby realize many with paying dues more, few with paying dues less, need not pay dues and do not pay dues obsolete purpose, thereby can solve the problem of catv charge difficulty, the catv charge mode is rationalized, and this device can prevent to usurp cable TV signal, to reach the purpose of the rating of paying dues, and the utility model code swap data, the user can use oneself telephone set or public telephone set and phone FinNet and realize paying dues the acquisition code, and input system voluntarily, reach the purpose of the rating of paying dues.

According to the technique scheme analysis as can be known,

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.

Fig. 2 is a flow chart of the present utility model.

The operation principle of television set rating is as follows:

Before television set was opened, TV signal can not form resonance in the magnet ring of the antenna of television set, so the consumption signal electric current is little; After television set was opened, TV signal formed resonance in the magnet ring of the antenna of television set, so the consumption signal electric current is big.

According to above-mentioned principle, as shown in Figure 1, the utility model embodiment is that 4 shared prepaid devices of user are realized rating control.String has resistance R 3 (or R4, R5, R6) in holding wire, whether size of current in the cable TV antenna will open according to television set, produce different pressure drops in resistance R 4 both sides, by the lifting of isolating transformer T1 (or T2, T3, T4) to voltage, after amplifying by operational amplifier 01 (02,03,04) behind the rectifying and wave-filtering, send the A/D input port of single-chip microcomputer IC1, handle by single-chip microcomputer IC1, judge that voltage uprises or step-down, thereby realization timing, pick up counting when promptly uprising, finish timing behind the step-down.

KEY is the keyboard of input code among the figure, is used to import the code corresponding with buying value, realizes and cable TV station's swap data.Wherein a key may be defined as identification key, when the multi-user supplies with a device, can utilize the different user of identification key identification, as present embodiment.One key may be defined as function key.Can utilize the function key conversion to show surplus value and user's return code.

LCD is 10 LCD among the figure, be used for the surplus value of explicit user time buying and monitor input code, but and explicit user return the code of purchase.

EEPROM is electric erasable data storage among the figure, is used for aggregate-value and user time surplus value memory time.

When the residue rating time that user in the memory buys is 0, the RC0 of single-chip microcomputer IC1 (or RC1, RC2, RC3) mouthful becomes low level by original high level, make the analog switch S1 that is serially connected in the CATV antenna (or S2, S3, S4) become disconnection, cut off cable TV signal from connection.When the user once more by directly obtaining code or utilize plain old telephone to enter the FinNet of being authorized according to voice suggestion to CATV management system purchase number service time, input account No. and code, after management system was confirmed the automatic generating code in back and informed the user, the user can finish purchasing process home-confinedly.When the user utilizes the keyboard input code behind single-chip microcomputer, this device is deciphered according to cryptographic algorithm, recover the time data that the user buys, after user remaining time 0, the RC0 of single-chip microcomputer IC1 (or RC1, RC2, RC3) mouthful of output high level, analog switch S1 (or S2, S3, S4) transfers " leading to " to by " breaking ", provides cable TV signal to television set.

The utility model power consumption only is 20 μ A, use the lithium ion battery of 3.6V/2.4Ah, continuous operation was above 10 years, when cell voltage near keeping when output, lifting voltage stabilizing circuit IC4 output alarm signal is given single-chip microcomputer RB0 mouth, single-chip microcomputer is handled back display alarm on LCD display, turn-offs S1, S2, S3, S4 behind the time-delay certain hour, makes the user must notify administrative department to change battery.

Whole device and catv line branch distributor are installed in the shielding box.

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 computer, 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.Input code can comprise management system recognition data, user identification data, user's purchase data and user's purchase data last time.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, input user charging device generates and after the return 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, after being entered into charging device, a swap data operation of completion code.

Use of the present utility model, can improve the useful life and the reliability of equipment, and greatly user friendly pre-paying, reduce the labour intensity of administrative department, avoid phenomenon of defaulting to take place, have reasonable fee,, improved the modern management level of administrative department for user and supply department bring economic benefit.

Claims (4)

1, a kind of cable TV timing prepaid device, it is characterized in that: series resistor and analog switching ic on the holding wire of cable TV, resistance two ends, keyboard connect the single-chip microcomputer input port, the single-chip microcomputer delivery outlet connects analog switching ic, display, and single-chip microcomputer mouth line also is connected to data storage.

2, cable TV timing prepaid device according to claim 1 is characterized in that: be connected between the series resistor single-chip microcomputer and promote transformer or amplifier.

3, cable TV timing prepaid device according to claim 1, it is characterized in that: series resistor and analog switching ic can be more than one.

4, cable TV timing prepaid device according to claim 1, it is characterized in that: keyboard comprises defined function key.

Images