CN213403156U

CN213403156U - Network hard disk video recorder for preventing image data from being tampered and stored

Info

Publication number: CN213403156U
Application number: CN202022018848.0U
Authority: CN
Inventors: 焦永利; 袁娟; 杨月
Original assignee: Fullsee Technology Co ltd
Current assignee: Fullsee Technology Co ltd
Priority date: 2020-09-15
Filing date: 2020-09-15
Publication date: 2021-06-08
Anticipated expiration: 2030-09-15

Abstract

The utility model relates to a network hard disk video recorder for preventing image data from being falsified and stored, which comprises a main control module, an audio/video A/D conversion module, a compression module, a display module and a storage hard disk; the main control module comprises a CPU processor, a memory controller, a Hash operation processor, a PCI interface and a network interface; the CPU processor, the memory controller, the PCI interface and the network interface are electrically connected with the Hash operation processor; the PCI interface is respectively connected with the compression module, the display module and the storage hard disk through a PCI bus; the audio/video A/D conversion module is electrically connected with the compression module; the compression module is electrically connected with the storage hard disk through the PCI bus; the display module is electrically connected with the display operation interface through the display interface. The network video recorder adds hash value checking calculation through the microcontroller chip, checks and calculates data uploading block link network, and the data can not be tampered after being stored, so that the behavior of tampering the video record can be restrained from being concealed.

Description

Network hard disk video recorder for preventing image data from being tampered and stored

Technical Field

The utility model relates to an information processing technology field especially relates to a network video recorder of image data tamper-proofing storage.

Background

In the digital age, multimedia technology is widely used in various industries, and the image files are more and more widely used by the public. Digital image files have become the most intuitive and widespread special memory carrier as a special type of file carrier. Therefore, it is of great significance to explore the information security protection strategy of the digital image files in the information age. With the construction of more and more video monitoring point locations, the number of monitoring images is increased day by day. Due to the limited law enforcement supervisors, the hidden danger of concealing, tampering and deleting the violation records in the later period is presented. In the process of image information acquisition and storage, data is easy to be tampered. To this demand, the utility model discloses based on the block chain technique, snapshot image, the video recording that front end video acquisition equipment acquireed increase the check calculation of hash value when the storage. The data can not be falsified after being stored, and the behaviors of falsifiing the video recording and capturing the violation of regulation can be limited to be concealed and falsified. The method meets the current actual requirements, has the characteristics of timeliness and high technology, and becomes a competent assistant for public safety after popularization.

SUMMERY OF THE UTILITY MODEL

For solving prior art's not enough, the utility model provides a network hard disk video recorder of image data tamper-proofing storage.

In order to achieve the above object, the utility model discloses the technical scheme who adopts includes:

a network video recorder for preventing image data from being tampered and stored is characterized by comprising a main control module, an audio/video A/D conversion module, a compression module, a display module and a storage hard disk; the main control module comprises a CPU processor, a memory controller, a Hash operation processor, a PCI interface and a network interface; the CPU processor, the memory controller, the PCI interface and the network interface are electrically connected with the Hash operation processor; the PCI interface is respectively connected with the compression module, the display module and the storage hard disk through a PCI bus; the audio/video A/D conversion module is electrically connected with the compression module; the compression module is electrically connected with the storage hard disk through the PCI bus; the display module is electrically connected with the display operation interface through the display interface.

Furthermore, the CPU processor is respectively electrically connected with the SDRAM chip and the FLASH chip through the memory controller.

Further, the display interface comprises a VGA interface, an HDMI interface and a DVI interface.

Further, the network interface is electrically connected with the front-end camera.

Furthermore, the audio/video A/D conversion module is electrically connected with the front-end camera.

Further, the hash operation processor is preferably an STM32F103RCT6 microcontroller programmed with a hash value.

Further, the CPU processor is preferably an ARMADA XP chip.

Further, the network hard disk video recorder main control module also optionally comprises an RS232 interface, an RS485 interface, a keyboard interface, a USB interface, an alarm interface and a status indicator lamp interface.

The utility model has the advantages that:

adopt the network video recorder of image data tamper-proofing storage, snap shot image, video recording that acquire front end video acquisition equipment increase hash value when the storage and check out, check out and calculate data upload block chain network, can not tamper after data storage, can restrict to hide and report the action of tampering video recording, breaking regulations snap shot.

Drawings

Fig. 1 is a schematic diagram of a network hard disk video recorder for tamper-proof storage of image data according to an embodiment of the present invention.

Fig. 2 is a schematic view of a workflow of the network hard disk recorder for preventing image data from being tampered and stored according to an embodiment of the present invention.

Detailed Description

For a clearer understanding of the present invention, reference will be made to the following detailed description of the embodiments with reference to the accompanying drawings.

Fig. 1 is a schematic diagram of a network hard disk video recorder for tamper-proof storage of image data according to an embodiment of the present invention, where the network hard disk video recorder includes a main control module, an audio/video a/D conversion module, a compression module, a display module, and a storage hard disk; the main control module comprises a CPU processor, a memory controller, a Hash operation processor, a PCI interface and a network interface; the CPU processor, the memory controller, the PCI interface and the network interface are electrically connected with the Hash operation processor; the hash operation processor is preferably an STM32F103RCT6 microcontroller which is coded with hash values; the PCI interface is respectively connected with the compression module, the display module and the storage hard disk through a PCI bus; the audio/video A/D conversion module is electrically connected with the compression module; the compression module is electrically connected with the storage hard disk through the PCI bus; the display module is optionally electrically connected with the display operation interface through a VGA interface, an HDMI interface and a DVI interface; the CPU processor is respectively electrically connected with the SDRAM chip and the FLASH chip through the memory controller; the CPU processor is preferably an ARMADA XP chip; the network hard disk video recorder main control module also optionally comprises an RS232 interface, an RS485 interface, a keyboard interface, a USB interface, an alarm interface and a status indicator lamp interface.

The audio and video information captured by the front-end camera is converted into digital signals through the network interface or the audio and video A/D conversion module and transmitted to the compression module, and the compression module compresses data into a standard H.264/H.265 format and transmits the data to the storage hard disk ATA for data storage.

Fig. 2 is that the embodiment of the utility model provides a vehicle, personnel's picture violating the regulations and video recording information that the network hard disk video recorder's that image data tamperproof storage that provide's work flow schematic diagram front end camera was taken a candid photograph enter through net gape or audio frequency and video AD conversion module the mainboard module of video recorder, the mainboard module is according to the time sequencing after setting up, adds hash value, identity information and proposes the registration application, monitoring platform audits the registration application, adds the video recorder that accords with the preset condition into the block chain network to coordinate information, number information in the identity information and carry out the correlation; the monitoring platform issues a unique private key and a public key matched with the private key, and sends the public key to a camera associated with the monitoring platform; before sending, using Hash algorithm to obtain digital abstract of the information of the snapshot picture to be sent, then using private key to encrypt the digital abstract instead of the information of the snapshot picture to be sent to form a section of information, the section of information is called as digital signature, and when sending, attaching the digital signature information to the back of the information of the snapshot picture to be sent, and sending the digital signature information together; after receiving the information, the monitoring platform decrypts the digital signature by using the public key of the sender to obtain a first abstract on one hand; on the other hand, the received information is used for solving a second abstract by a Hash algorithm, and then comparison is carried out to judge whether the first abstract and the second abstract are the same. If the two abstracts are completely matched, the information is proved to be complete; if the information does not conform to the digital signature, the information is falsified by people, and therefore the behaviors of vehicle and personnel violation snapshot are limited to be withheld.

The video recorder uses distributed accounting and storage, without centralized hardware or regulatory agencies. The rights and the obligations of all the nodes are equal, so that the operation stop of any node does not influence the operation of the whole system.

The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A network video recorder for preventing image data from being tampered and stored is characterized by comprising a main control module, an audio/video A/D conversion module, a compression module, a display module and a storage hard disk; the main control module comprises a CPU processor, a memory controller, a Hash operation processor, a PCI interface and a network interface; the CPU processor, the memory controller, the PCI interface and the network interface are electrically connected with the Hash operation processor; the PCI interface is respectively connected with the compression module, the display module and the storage hard disk through a PCI bus; the audio/video A/D conversion module is electrically connected with the compression module; the compression module is electrically connected with the storage hard disk through the PCI bus; the display module is electrically connected with the display operation interface through the display interface.

2. The network video recorder of claim 1, wherein the CPU processor is electrically connected to the SDRAM chip and the FLASH chip, respectively, through the memory controller.

3. The network video recorder of claim 1, wherein the display interface comprises a VGA interface, an HDMI interface, a DVI interface.

4. The network video recorder of claim 1, wherein the network interface is electrically connected to a front-end camera.

5. The network video recorder of claim 1, wherein the audio/video a/D conversion module is electrically connected to a front-end camera.

6. The network video recorder of claim 1, wherein the hash operation processor is an STM32F103RCT6 microcontroller programmed with a hash value.

7. The network hard disk recorder of claim 1, wherein the CPU processor is an ARMADA XP chip.

8. The network video recorder of any one of claims 1 to 7, wherein the network video recorder main control module further comprises an RS232 interface, an RS485 interface, a keyboard interface, a USB interface, an alarm interface, and a status indicator light interface.