Embedded digital video hard disk video recorder telephone alarm
A hard disk video recorder, embedded technology, applied in alarms, telephone communications, instruments, etc., can solve problems that have not yet been seen, and achieve the effect of low power consumption and a safe living environment
Inactive Publication Date: 2012-05-09
ZHUHAI RAYSHARP TECH
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- Description
- Claims
- Application Information
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Problems solved by technology
[0003] Develop a new type of control circuit to organically combine the above-mentioned digital hard disk video recorder with the telephone network to become a digital hard disk video recorder telephone alarm. This product has not yet been seen in the market
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[0010] Such as figure 1 , figure 2 As shown, the present invention includes a digital video hard disk video recorder, a telephone network and a control circuit, and the control circuit includes a processor circuit 1, an on-hook circuit 2, a DTMF signal generator circuit 3, a signal frequency stabilization output circuit 4, and a communication isolation circuit 5, DTMF signal receiving circuit 6, communication and power supply plug-in device 7, described off-hook circuit 2 comprises relay k2, PNP triode and resistor R19, and described DTMF signal generating circuit 3 comprises processor chip U4 and resistor R26, The signal frequency stabilization output circuit 4 includes a triode Q4 and a circuit composed of resistors R22, R23 and capacitor C9 at the periphery, the communication isolation circuit 5 includes a relay T1, capacitors C1, C2, and the DTMF signal receiving circuit 6 includes Processor chip U6 and peripheral resistors R31, R32, R33, R34, R34 and a crystal oscillato...
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The invention discloses an embedded digital video hard disk video recorder telephone alarm and aims to provide a novel digital video hard disk video recorder telephone alarm of which a digital hard disk video recorder is organically combined with a telephone network by a controlling circuit. The telephone alarm comprises a processer circuit (1), a pickup and hangup circuit(2), a TDMF signal generator circuit (3), a signal frequency stabilizing and outputting circuit (4), a communication isolating circuit (5), a TDMF signal receiving circuit (6), and a communication and power source plug-in device (7), wherein the processor circuit (1) is a CMOS eight-bit singlechip with high performance and low power consumption, can realize to control the TDMF signal generating circuit and the TDMF signal receiving circuit through an internal program, and can communicate with the digital video hard disk video recorder through a serial port so as to realize the function of an intelligent telephone alarm of the digital video hard disk video recorder. The telephone alarm can be widely applied to various security systems.
Description
technical field [0001] The invention relates to the field of security products, in particular to a digital hard disk video recorder telephone alarm. Background technique [0002] With the advancement of technology and the development of the information society, the video recorder has developed from the video tape in the past to the current DVR (Digital Video Recorder). In recent years, video surveillance has been widely used in all walks of life. There are community security monitoring in life, organic station monitoring in the telecommunications industry, ATM monitoring in the banking system, fire monitoring in the forestry department, traffic violation and flow monitoring, etc.; In terms of function, video surveillance can be used for security protection, information acquisition, command and dispatch, etc. At the same time, home telephone network, exchange telephone network and other telephone networks currently adopt the latest chip circuit and software technology, which...
Claims
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IPC IPC(8): H04M11/02H04M11/04G08B25/08
Inventor 曹根元曹金桂吴晓东
Owner ZHUHAI RAYSHARP TECH