Method for the real-time monitoring and transmission of a visual domestic safeguard system

• US 20040150718A1
• Filed: 05/14/2003
• Published: 08/05/2004
• Est. Priority Date: 01/30/2003
• Status: Abandoned Application

• Current Assignee: Jian Zhang
• Original Assignee: Jian Zhang
• Inventors: Han, Caoming, Cui, Wenjie, Zhang, Jian, Tang, Huiming
• Application Number:
  US10/438,079
• Publication Number:
  US 20040150718A1
• Time in Patent Office: Days
• US Class Current: 348/154
• CPC Class Codes: G08B 13/19656 Network used to communicate with a camera, e.g. WAN, LAN, Internet
• CPC Class Codes: G08B 13/19658 Telephone systems used to communicate with a camera, e.g. PSTN, GSM, POTS
• CPC Class Codes: G08B 13/1966 Wireless systems, other than telephone systems, used to communicate with a camera
• CPC Class Codes: G08B 25/009 Signalling of the alarm condition to a substation whose identity is signalled to a central station, e.g. relaying alarm signals in order to extend communication range
• CPC Class Codes: H04N 7/18 Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast

Abstract

The invention relates to a visual domestic safeguard system and the method for real-time monitoring and transmission. The object of the invention is that the said system is a host-slave system interconnected in wireless communication mode, which performs real-time detection on mobile objects and records them automatically. The visual domestic safeguard system includes a host M and several slaves Z, slave Z is mainly used to obtain video signals while the principal function of host M is to transmit signals to a server through communication networks. In the slave, digital video signals are processed with static/mobile image coding algorithm, encryption algorithm and video mobile object detection algorithm, and later transferred to host M after image compression; the received compressed video and audio signals are displayed directly or stored after decryptions decompression and video coding process, or sent to the server of the domestic safeguard system, and later transmitted to MMS mobile phones e-mailbox or hand-held devices. The invention could performs real-time image monitoring and transmission on several sites.

Claims

1. A visual domestic safeguard system comprising a host M and several slaves Z, slave Z is mainly used to obtain video signals while the principal function of host M is to transmit signals to a server through communication networks, wherein:

I) Slave Z includes video acquisition circuit (7), slave central processing circuit (8), slave wireless communication interface circuit (9), duplex speaker circuit (10) and control switches (11);

the output of video acquisition circuit (7) is connected with the input of slave central processing circuit (8), which is also connected with the slave wireless communication interface circuit (9);

the duplex speaker circuit (10) is also connected with slave central processing circuit (8), and control switches (11) are connected in slave central processing circuit (8). Mobile detecting algorithm may be implemented in the slave central processing circuit (8) with software;

II) Host M consists of host wireless communication interface circuit (1), host central processing circuit (4), communication interface circuit (6), display output circuit (3), display device (12), memory circuit (2) and hard disk interface circuit (5);

host wireless communication interface circuit (1) is connected with host central processing circuit (4) while the output of the latter is connected with the input of display output circuit (3), whose output again is connected with display device (12);

host central processing circuit (4) can decode and decrypt the compressed video signals received by host wireless communication interface circuit (1) and then display them directly on the display device (12) through the display output circuit module (3). Host central processing circuit (4) has a communication interface through which it has a connection with communication interface circuit (6);

there are also memory circuit (2) and hard disk interface circuit (5), both are connected with host central processing circuit (4);

III) Slave Z and Host M may establish a wireless interconnection in two ways;

one is analog mode and the other is digital mode.

2. The visual domestic safeguard system according to claim 1, wherein slave Z and host M are interconnected in analog mode, and analog signals acquired, by the recorder are transmitted to host M through wireless communication interface.

3. The visual domestic safeguard system according to claim 1, wherein slave Z and host M are interconnected in digital mode, and slave Z converts the analog video signals to digital signals, which are transmitted to the host M through wireless communication interface after compression and encryption.

4. The visual domestic safeguard system according to claim 1, wherein the said slave central processing circuit (8) includes slave memory (U8), slave primary processor chip (U9) and slave Read Only Memory (U11).

5. The visual domestic safeguard system according to claim 1, wherein the said host central processing circuit (4) includes host Read Only Memory (U3), host primary processor chip (U4) and host memory (U5).

6. The visual domestic safeguard system according to claim 1, wherein communication interface circuit (6) of the host is employed to connect with a server;

communication interface circuit (6) may be a MODEM interface circuit or a network interface circuit, it also may be a mobile data communication interface circuit;

the interface of communication interface circuit (6) can be a MODEM circuit of PSTN, GPRS or CDMA.

7. A method for real-time monitoring and transmission of a visual domestic safeguard system, characterized in that the said system, a host-slave system interconnected in wireless communication mode, is divided into step I and step II implemented by slave Z and host M respectively.

Step I, which is implemented by slave Z, includes:

1) The video acquisition chip (U7) in the slave converts the obtained analog video signals to digital video signals, which are transferred to the primary processor chip (U9) of the central processing circuit (8) of the slave;

primary processor chip (U9) then processes the digital video signals with static/mobile image coding algorithm, encryption algorithm and video mobile object detection algorithm;

2) The process with video mobile object detection algorithm is that detecting mobile objects from images according to the difference degree between currently input image and that recorded previously;

3) Once receive the object mobile detection signals and Boolean variable signals, primary processor chip (U9) of the slave triggers slave central processing circuit (8) to perform image compression and transmit the compressed video and audio data to host M through the slave wireless communication interface circuit (9).

Step II, which is implemented by host M, includes;

1) Host wireless communication interface circuit (1) stores the received compressed video and audio data in the memory circuit (2);

2) Primary processor chip (U4) of the host central processing circuit (4) processes the received video and audio data with static/mobile image decoding algorithm;

the received compressed video and audio signals are displayed directly on the display device (12) through display output circuit (3) after decryption, decompression and video coding process;

they can also be saved in memory circuit (2) or stored in hard disks through hard disk interface circuit (5);

these compressed video and audio data can be read from hard disks through hard disk interface circuit (5) or from memory circuit (2);

3) Communication interface circuit (6) is connected with host central processing circuit (4), which transmits the received compressed video signals to communication interface circuit (6);

communication interface circuit (6) has a communication interface through which signals are sent to the server of the domestic safeguard system, and later transmitted to MMS mobile phones e-mailbox or hand-held devices.