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Lock-control systems and control methods thereof for cable television boxes

A technology of cable TV and control method, which is applied to the components of the TV system, TV, color TV, etc., to achieve the effect of protecting safety

Inactive Publication Date: 2003-09-03
王天杰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a cable TV box lock control system and its control method to ensure the safe and normal operation of wired equipment, monitor the cable TV box by using an intelligent lock control system, and solve the management problem of the cable TV box

Method used

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  • Lock-control systems and control methods thereof for cable television boxes
  • Lock-control systems and control methods thereof for cable television boxes
  • Lock-control systems and control methods thereof for cable television boxes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Insert the plug of the hand-held electronic key into the jack of the lock control circuit on the cable TV box, and the signal input by the hand-held electronic key is composed of 100μm inductor 2, 2Ω resistor 3, 1N4001 diode 4, 100μf / 16V capacitor 5, and 0.01μf capacitor 6 A low-pass filter separates the DC power supply and supplies power to the lock control system. The data signal is separated by a high-pass filter composed of a 1μf / 16V capacitor 7, a 390Ω resistor 8 and a 1000P capacitor 9, and sent to the controller 25 through a 2SC9018 transistor 10 and a 1.2KΩ resistor 12, and the AT89C2051 host CPU 14 reads the data from the X25045 host memory 15 for comparison , as legal data, host computer CPU14 provides unlocking signal, through the lock drive circuit 26 unlocking 23 that 2.2KΩ resistance 16, 2SC9015 triode 17, S8050 triode 18 and 1N4148 diode 19 form.

Embodiment 2

[0025] The cable TV network authorization signal input by the coaxial cable 20 is separated from the power supply through the modem 21, and the power supply is supplied by the 1N4001 diode 22-bit lock control system. The data signal demodulated by the modem 21 is sent to the controller 25 through the 390Ω resistor 13, the 2SC9018 transistor 11 and the 1.2KΩ resistor 12, and the AT89C2051 host CPU 14 reads the X25045 host memory 15 data for comparison. The signal is unlocked 23 through a lock drive circuit 26 formed by a 2.2KΩ resistor 16, a 2SC9015 transistor 17, an S8050 transistor 18 and a 1N4148 diode 19.

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PUM

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Abstract

A lock control system for cable TV box is composed of host and hand-held electronic key. Said host consists of dual-function device, CPU, memory, power supply, lock driver and lock. Said hand-held electronic key comprises memory, keypad, display, plug and power supply. The signals from said electronic key and cable TV network are sent via dual-function device to CPU of host, and then compared with the data in memory of host to generate a switch signal, which can trigger the lock driver to open the lock.

Description

technical field [0001] The invention belongs to the field of intelligent anti-theft technology. Background technique [0002] With the rapid development of my country's cable TV network, the network coverage continues to increase, and the number of cable TV boxes is also increasing rapidly. As the main protective equipment for cable TV system components, cable TV boxes are difficult to manage due to scattered locations and complex environments. Its security has been threatened by various adverse factors. Incidents of theft and destruction of cable TV equipment have occurred frequently. [0003] At present, the locks of cable TV boxes are backward and have poor protection performance, and the keys cannot be effectively managed. The cable TV boxes are almost in an undefended state. Give criminals an opportunity. Contents of the invention [0004] The object of the present invention is to provide a cable TV box lock control system and its control method which can ensure th...

Claims

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Application Information

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IPC IPC(8): E05B49/00E05B65/00H04N5/44
Inventor 王天杰杨程
Owner 王天杰