The difference between industrial computer and early industrial computer
IPC friends all know clearly that it is an industrial computer, so what is a fanless IPC? What is the difference between it and the early IPC? In response to these problems, some professionals gave the answer: early The difference between the IPC and the fanless IPC can be divided into differences in layout and performance, which are for reference only.
difference in layout
Early IPCs used a combination of 4U and other typical cold-rolled plate chassis + golden finger motherboard (full-length or half-length card) + bottom plate + high-power power supply. There will be some inconsistencies in such a layout:
(1) If the CPU card is inserted, there will be signs of bad contact on the board, such as vibration, loose transportation, oxidation of gold fingers, etc., which will lead to failure to boot;
(2) It is necessary to combine a little between the backplane and the CPU card, such as the ATX light line;
(3) The CPU card is powered by the backplane. When the backplane finds a problem, it will affect the CPU card's inability to supply power normally, resulting in an unstable system (such as the inconsistency of the backplane power supply circuit design); , and requires fans to dissipate heat, and the continuity and service life of fans and CPUs is a very big safety hazard; industrial computer
(4) The power consumption of the power supply is too large, and the power supply needs a fan to dissipate heat. When the fan is found to be in the way, the power supply and the motherboard will be damaged;
(5) The layout of CPU card + backplane will bring difficulties to the installation (cost time, the backplane must be installed before installing the CPU card), which will affect the work efficiency and is not conducive to a large number of installation work.
The layout of the fanless industrial computer adopts a combination of all-aluminum shell + embedded motherboard + external low-power power supply
System benefits:
(1) The shell with all-aluminum layout makes the heat dissipation more abundant, small size and light weight. Easy to place and wear.
(2) The adopted embedded, low-power CPU motherboard and the latest embedded technology, and the related peripheral interfaces are integrated on the CPU motherboard, which reduces the connection problem and avoids the problem of loose connection
(3) The embedded CPU motherboard adopts a single +5V or +12V DC power supply system, and is equipped with a switch adapter, which makes the on-site power supply system richer and more reliable in power supply
(4) Because the CPU of the embedded motherboard adopts the BGA (on-board) packaging system, there is no need to worry about the continuous problem, and the fan-free plan is adopted, which greatly improves the reliability and completely solves the problem of insufficient heat dissipation and longevity of the early industrial computer.
(5) When installing for customers, you only need to use the external socket to store the hard disk and memory, which can be used, shortening the installation time and improving work efficiency.
Summary: There are a large number of connection lines between the CPU card and the backplane or the external interface, which will lead to the problem of loose or wrong connection of the system, which will lead to the instability of the entire system (as if there is a fan in the system). It solved the problems that could not be solved by the early industrial computer, making the system more consolidated and the layout more capable.
difference in efficacy
In the early days, the IPC was driven by the CPU card to drive the interface card on the passive backplane. There are hidden dangers:
(1) The light trace between the CPU card and the associated peripheral card is long, and there is light attenuation and disturbance. (It has a greater impact on the collection industry of high-precision light signals)
(2) Because the peripheral card needs to be inserted on the passive backplane, it is sometimes impossible to drive more peripheral cards due to the influence of the driving ability of the mainboard (for example, the third PC building on the passive backplane cannot work)
(3) Because there is a bridge chip on the bottom plate, there is a problem of monitoring capacitance
(4) Early IPCs do not have reserved interfaces for higher peripherals, (such as AGP slots, which cannot be completed for requests requiring higher performance, causing inconvenience to customers or paying higher costs to accept PCI graphics cards, or The effect cannot be completed with this)
benefit:
(1) There are many expansion slots, supplying early ISA and PCI expansion
(2) The early ISA and PCI construction costs are cheap
Adopt embedded motherboard, adopt expansion methods such as PC104 or PCI104
System benefits:
(1) Embedded motherboards generally use expansion modes such as PC104 (matched to IAS), PCI104 (matched to PCI), MIN PCI, etc., the signal line is shorter, the signal attenuation and interference are smaller, and the connection is more reliable and reliable.
(2) PCI, ISA bridge chips are integrated on the motherboard, and the system driver and monitoring capabilities are stronger
(3) The embedded motherboard integrates DIOCONTROL ENGINEERING China, TV-OUT, Audio, single and dual network ports, multiple serial ports, multiple USB ports and other confluence interfaces, providing customers with richer interfaces and making it easier for customers to expand. The old book is more bottom.
(4) The LCD interface is also a major feature of the embedded motherboard. It can allow users to simply continue the LCD display, which reduces the difficulty of A/D conversion and reduces security risks compared with the earlier VGA mode.
(5) It can not only provide standard operating systems, but also provide embedded operating systems: Windos CE, LINX, Windos XPE, etc., making the system more straightforward, faster to start, more stable, and to avoid accidental shutdown. etc. topics.
Disadvantage:
(1) The scalability is relatively weak, and the early ISA interface is not provided
(2) Expansion of construction costs such as PC104 is relatively high
Summary: The early IPC will bring inconvenience to the application of the actual system due to the driving ability and monitoring capacity of its motherboard, and will also bring about an increase in the purchase cost of customers due to the lack of confluent interfaces. Because of the richer interfaces and more confluent interfaces, the industrial computer provides customers with a large selection space and reduces the cost.
