Passageway type safety check device

Abstract

The invention discloses a passageway type safety check device comprising an upper computer, a lower computer and a machine platform peripheral control circuit, wherein the lower computer is in network communication and image data transmission communication with the upper computer; power is supplied to the lower computer via a power source module; a signal collection module comprises a front end collection card array, a collected signal input interface, an analog signal conditioning circuit, an ADC signal collection circuit and a main control MCU; the machine platform peripheral control circuit is connected with a machine platform control interface. According to the passageway type safety check device, a conventional solution of using an FPGA as a main chip framework is abandoned, a chip framework cortex-M4 which is prevalent in current embedded development is adopted, stm32F427 is a high performance chip of which a main frequency is as high as 180 Mh based on the framework, the upper computer and the lower computer are clear in software framework, only two TCP / IP servers are built in the lower computer, and one is used for receiving control instructions from the upper computer while the other is used for transmitting image data.

Description

technical field [0001] The invention relates to a channel-type security inspection device. Background technique [0002] At present, the anti-terrorism situation is becoming more and more serious. In some important public places, such as airports, subways, stations, sports venues, important meeting places, logistics industries, etc., all countries have spared no effort to invest a lot of manpower and material resources to protect people's lives and property. At present, it is more effective, the most economical, and the most efficient security inspection for parcels is still channel-type X-ray inspection equipment. [0003] The technical solutions used by the current channel-type X-ray security inspection equipment are backward. Many devices and materials are not easy to purchase, and at the same time, they do not have good installability and maintainability, and they cannot cope with the diversification of market demand and diversification of function expansion. Therefore, ...

AI Technical Summary

Problems solved by technology

This kind of solution was an excellent solution around 2000, but with the increasing market demand, this kind of solution uses the NIOS soft core as the MCU to realize important operations such as data acquisition and image transmission of the whole machine. The speed limit of the NIOS soft core itself cannot meet the requirements of continuously increasing acquisition cards to construct large or super-large models, and uses USB as a data transmission channel, and its transmission reliability is far inferior to that of TCP / IP. TCP / IP is very easy, but when using USB, not only must write the USB driver, but also the driver must be continuously upgraded with the upgrade of the operating system, which undoubtedly makes development and maintenance cumbersome

What's more deadly is that due to the low reliability of FPGA configuration FLASH encryption, there is a very high risk of being cracked, which is extremely unfavorable for the protection of intellectual property rights

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